diff --git a/demo/multipleReloadTest/multipleReload.html b/demo/multipleReloadTest/multipleReload.html index 39175992..964df9ac 100644 --- a/demo/multipleReloadTest/multipleReload.html +++ b/demo/multipleReloadTest/multipleReload.html @@ -4,7 +4,7 @@ Multiple reload test - + @@ -17,12 +17,12 @@

Multiple reload test

- + Loading: {{adapter.isLoading}}
-
+
{{item}}
diff --git a/dist/ui-scroll.js b/dist/ui-scroll.js index e8773d6b..1c69f753 100644 --- a/dist/ui-scroll.js +++ b/dist/ui-scroll.js @@ -1,7 +1,7 @@ /*! * angular-ui-scroll * https://github.com/angular-ui/ui-scroll - * Version: 1.7.0 -- 2017-12-05T17:50:06.228Z + * Version: 1.7.0 -- 2018-04-13T11:46:50.511Z * License: MIT */ /******/ (function(modules) { // webpackBootstrap @@ -99,7 +99,8 @@ var _adapter2 = _interopRequireDefault(_adapter); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } angular.module('ui.scroll', []).constant('JQLiteExtras', _jqLiteExtras2.default).run(['JQLiteExtras', function (JQLiteExtras) { - return !window.jQuery ? new JQLiteExtras().registerFor(angular.element) : null; + !window.jQuery ? new JQLiteExtras().registerFor(angular.element) : null; + _elementRoutines2.default.addCSSRules(); }]).directive('uiScrollViewport', function () { return { restrict: 'A', @@ -274,12 +275,12 @@ angular.module('ui.scroll', []).constant('JQLiteExtras', _jqLiteExtras2.default) } }; - /** - * Build padding elements - * - * Calling linker is the only way I found to get access to the tag name of the template - * to prevent the directive scope from pollution a new scope is created and destroyed - * right after the builder creation is completed + /** + * Build padding elements + * + * Calling linker is the only way I found to get access to the tag name of the template + * to prevent the directive scope from pollution a new scope is created and destroyed + * right after the builder creation is completed */ linker(function (clone, scope) { viewport.createPaddingElements(clone[0]); @@ -932,22 +933,33 @@ function _classCallCheck(instance, Constructor) { if (!(instance instanceof Cons var hideClassToken = 'ng-ui-scroll-hide'; -function addCSSRule(sheet, selector, rules, index) { - if ('insertRule' in sheet) { - sheet.insertRule(selector + '{' + rules + '}', index); - } else if ('addRule' in sheet) { - sheet.addRule(selector, rules, index); - } -} - var ElementRoutines = function () { + _createClass(ElementRoutines, null, [{ + key: 'addCSSRules', + value: function addCSSRules() { + var selector = '.' + hideClassToken; + var rules = 'display: none'; + var sheet = document.styleSheets[0]; + var index = void 0; + try { + index = sheet.cssRules.length; + } catch (err) { + index = 0; + } + if ('insertRule' in sheet) { + sheet.insertRule(selector + '{' + rules + '}', index); + } else if ('addRule' in sheet) { + sheet.addRule(selector, rules, index); + } + } + }]); + function ElementRoutines($injector, $q) { _classCallCheck(this, ElementRoutines); this.$animate = $injector.has && $injector.has('$animate') ? $injector.get('$animate') : null; this.isAngularVersionLessThen1_3 = angular.version.major === 1 && angular.version.minor < 3; this.$q = $q; - addCSSRule(document.styleSheets[0], '.' + hideClassToken, 'display: none'); } _createClass(ElementRoutines, [{ diff --git a/dist/ui-scroll.js.map 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\t\tif(!__webpack_require__.o(exports, name)) {\n \t\t\tObject.defineProperty(exports, name, {\n \t\t\t\tconfigurable: false,\n \t\t\t\tenumerable: true,\n \t\t\t\tget: getter\n \t\t\t});\n \t\t}\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = 0);\n\n\n\n// WEBPACK FOOTER //\n// webpack/bootstrap 7b7663c4ef0bd85aea15","import JQLiteExtras from './modules/jqLiteExtras';\r\nimport ElementRoutines from './modules/elementRoutines.js';\r\nimport ScrollBuffer from './modules/buffer.js';\r\nimport Viewport from './modules/viewport.js';\r\nimport Adapter from './modules/adapter.js';\r\n\r\nangular.module('ui.scroll', [])\r\n\r\n .constant('JQLiteExtras', JQLiteExtras)\r\n .run(['JQLiteExtras', (JQLiteExtras) =>\r\n !window.jQuery ? (new JQLiteExtras()).registerFor(angular.element) : null\r\n ])\r\n\r\n .directive('uiScrollViewport', function () {\r\n return {\r\n restrict: 'A',\r\n controller: [\r\n '$scope',\r\n '$element',\r\n function (scope, element) {\r\n this.container = element;\r\n this.viewport = element;\r\n this.scope = scope;\r\n\r\n angular.forEach(element.children(), child => {\r\n if (child.tagName.toLowerCase() === 'tbody') {\r\n this.viewport = angular.element(child);\r\n }\r\n });\r\n\r\n return this;\r\n }\r\n ]\r\n };\r\n })\r\n\r\n .directive('uiScroll', [\r\n '$log',\r\n '$injector',\r\n '$rootScope',\r\n '$timeout',\r\n '$interval',\r\n '$q',\r\n '$parse',\r\n function (console, $injector, $rootScope, $timeout, $interval, $q, $parse) {\r\n\r\n return {\r\n require: ['?^uiScrollViewport'],\r\n restrict: 'A',\r\n transclude: 'element',\r\n priority: 1000,\r\n terminal: true,\r\n link: link\r\n };\r\n\r\n function link($scope, element, $attr, controllers, linker) {\r\n const match = $attr.uiScroll.match(/^\\s*(\\w+)\\s+in\\s+([(\\w|\\$)\\.]+)\\s*$/);\r\n if (!match) {\r\n throw new Error('Expected uiScroll in form of \\'_item_ in _datasource_\\' but got \\'' + $attr.uiScroll + '\\'');\r\n }\r\n\r\n function parseNumericAttr(value, defaultValue) {\r\n const result = $parse(value)($scope);\r\n return isNaN(result) ? defaultValue : result;\r\n }\r\n\r\n const BUFFER_MIN = 3;\r\n const BUFFER_DEFAULT = 10;\r\n const PADDING_MIN = 0.3;\r\n const PADDING_DEFAULT = 0.5;\r\n const MAX_VIEWPORT_DELAY = 500;\r\n const VIEWPORT_POLLING_INTERVAL = 50;\r\n\r\n let datasource = null;\r\n const itemName = match[1];\r\n const datasourceName = match[2];\r\n const viewportController = controllers[0];\r\n const bufferSize = Math.max(BUFFER_MIN, parseNumericAttr($attr.bufferSize, BUFFER_DEFAULT));\r\n const padding = Math.max(PADDING_MIN, parseNumericAttr($attr.padding, PADDING_DEFAULT));\r\n let startIndex = parseNumericAttr($attr.startIndex, 1);\r\n let ridActual = 0; // current data revision id\r\n let pending = [];\r\n\r\n const elementRoutines = new ElementRoutines($injector, $q);\r\n const buffer = new ScrollBuffer(elementRoutines, bufferSize, startIndex);\r\n const viewport = new Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding);\r\n const adapter = new Adapter($scope, $parse, $attr, viewport, buffer, doAdjust, reload);\r\n\r\n if (viewportController) {\r\n viewportController.adapter = adapter;\r\n }\r\n\r\n const isDatasourceValid = () =>\r\n Object.prototype.toString.call(datasource) === '[object Object]' && typeof datasource.get === 'function';\r\n\r\n datasource = $parse(datasourceName)($scope); // try to get datasource on scope\r\n if (!isDatasourceValid()) {\r\n datasource = $injector.get(datasourceName); // try to inject datasource as service\r\n if (!isDatasourceValid()) {\r\n throw new Error(datasourceName + ' is not a valid datasource');\r\n }\r\n }\r\n\r\n let onRenderHandlers = [];\r\n function onRenderHandlersRunner() {\r\n onRenderHandlers.forEach(handler => handler.run());\r\n onRenderHandlers = [];\r\n }\r\n function persistDatasourceIndex(datasource, propName) {\r\n let getter;\r\n // need to postpone min/maxIndexUser processing if the view is empty\r\n if(Number.isInteger(datasource[propName])) {\r\n getter = datasource[propName];\r\n if(Number.isInteger(getter)) {\r\n onRenderHandlers = onRenderHandlers.filter(handler => handler.id !== propName);\r\n onRenderHandlers.push({\r\n id: propName,\r\n run: () => datasource[propName] = getter\r\n });\r\n }\r\n }\r\n }\r\n\r\n function defineDatasourceIndex(datasource, propName, propUserName) {\r\n const descriptor = Object.getOwnPropertyDescriptor(datasource, propName);\r\n if (descriptor && (descriptor.set || descriptor.get)) {\r\n return;\r\n }\r\n let getter;\r\n persistDatasourceIndex(datasource, propName);\r\n Object.defineProperty(datasource, propName, {\r\n set: (value) => {\r\n getter = value;\r\n if(pending.length && !buffer.length) {\r\n persistDatasourceIndex(datasource, propName);\r\n return;\r\n }\r\n buffer[propUserName] = value;\r\n const topPaddingHeightOld = viewport.topDataPos();\r\n viewport.adjustPaddings();\r\n if (propName === 'minIndex') {\r\n viewport.onAfterMinIndexSet(topPaddingHeightOld);\r\n }\r\n },\r\n get: () => getter\r\n });\r\n }\r\n\r\n defineDatasourceIndex(datasource, 'minIndex', 'minIndexUser');\r\n defineDatasourceIndex(datasource, 'maxIndex', 'maxIndexUser');\r\n\r\n const fetchNext = (datasource.get.length !== 2) ?\r\n (success) => datasource.get(buffer.next, bufferSize, success) :\r\n (success) => {\r\n datasource.get({\r\n index: buffer.next,\r\n append: buffer.length ? buffer[buffer.length - 1].item : void 0,\r\n count: bufferSize\r\n }, success);\r\n };\r\n\r\n const fetchPrevious = (datasource.get.length !== 2) ?\r\n (success) => datasource.get(buffer.first - bufferSize, bufferSize, success) :\r\n (success) => {\r\n datasource.get({\r\n index: buffer.first - bufferSize,\r\n prepend: buffer.length ? buffer[0].item : void 0,\r\n count: bufferSize\r\n }, success);\r\n };\r\n\r\n const initialize = () => {\r\n let tryCount = 0;\r\n if(!viewport.applyContainerStyle()) {\r\n const timer = $interval(() => {\r\n tryCount++;\r\n if(viewport.applyContainerStyle()) {\r\n $interval.cancel(timer);\r\n doAdjust();\r\n }\r\n if(tryCount * VIEWPORT_POLLING_INTERVAL >= MAX_VIEWPORT_DELAY) {\r\n $interval.cancel(timer);\r\n throw Error(`ui-scroll directive requires a viewport with non-zero height in ${MAX_VIEWPORT_DELAY}ms`);\r\n }\r\n }, VIEWPORT_POLLING_INTERVAL);\r\n }\r\n else {\r\n doAdjust();\r\n }\r\n };\r\n\r\n /**\r\n * Build padding elements\r\n *\r\n * Calling linker is the only way I found to get access to the tag name of the template\r\n * to prevent the directive scope from pollution a new scope is created and destroyed\r\n * right after the builder creation is completed\r\n */\r\n linker((clone, scope) => {\r\n viewport.createPaddingElements(clone[0]);\r\n // we do not include the clone in the DOM. It means that the nested directives will not\r\n // be able to reach the parent directives, but in this case it is intentional because we\r\n // created the clone to access the template tag name\r\n scope.$destroy();\r\n clone.remove();\r\n });\r\n\r\n $scope.$on('$destroy', () => {\r\n unbindEvents();\r\n viewport.unbind('mousewheel', wheelHandler);\r\n });\r\n\r\n viewport.bind('mousewheel', wheelHandler);\r\n\r\n initialize();\r\n\r\n /* Private function definitions */\r\n\r\n function isInvalid(rid) {\r\n return (rid && rid !== ridActual) || $scope.$$destroyed;\r\n }\r\n\r\n function bindEvents() {\r\n viewport.bind('resize', resizeAndScrollHandler);\r\n viewport.bind('scroll', resizeAndScrollHandler);\r\n }\r\n\r\n function unbindEvents() {\r\n viewport.unbind('resize', resizeAndScrollHandler);\r\n viewport.unbind('scroll', resizeAndScrollHandler);\r\n }\r\n\r\n function reload() {\r\n viewport.resetTopPadding();\r\n viewport.resetBottomPadding();\r\n if (arguments.length) {\r\n startIndex = arguments[0];\r\n }\r\n buffer.reset(startIndex);\r\n persistDatasourceIndex(datasource, 'minIndex');\r\n persistDatasourceIndex(datasource, 'maxIndex');\r\n doAdjust();\r\n }\r\n\r\n function isElementVisible(wrapper) {\r\n return wrapper.element.height() && wrapper.element[0].offsetParent;\r\n }\r\n\r\n function visibilityWatcher(wrapper) {\r\n if (isElementVisible(wrapper)) {\r\n buffer.forEach((item) => {\r\n if (typeof item.unregisterVisibilityWatcher === 'function') {\r\n item.unregisterVisibilityWatcher();\r\n delete item.unregisterVisibilityWatcher;\r\n }\r\n });\r\n if (!pending.length) {\r\n $timeout(() => doAdjust());\r\n }\r\n }\r\n }\r\n\r\n function insertWrapperContent(wrapper, insertAfter) {\r\n createElement(wrapper, insertAfter, viewport.insertElement);\r\n if (!isElementVisible(wrapper)) {\r\n wrapper.unregisterVisibilityWatcher = wrapper.scope.$watch(() => visibilityWatcher(wrapper));\r\n }\r\n elementRoutines.hideElement(wrapper); // hide inserted elements before data binding\r\n }\r\n\r\n function createElement(wrapper, insertAfter, insertElement) {\r\n let promises = null;\r\n const sibling = (insertAfter > 0) ? buffer[insertAfter - 1].element : undefined;\r\n linker((clone, scope) => {\r\n promises = insertElement(clone, sibling);\r\n wrapper.element = clone;\r\n wrapper.scope = scope;\r\n scope[itemName] = wrapper.item;\r\n });\r\n // ui-scroll-grid apply\r\n if (adapter.transform) {\r\n const tdInitializer = wrapper.scope.uiScrollTdInitializer;\r\n if (tdInitializer && tdInitializer.linking) {\r\n adapter.transform(wrapper.scope, wrapper.element);\r\n } else {\r\n wrapper.scope.uiScrollTdInitializer = {\r\n onLink: () => adapter.transform(wrapper.scope, wrapper.element),\r\n scope: wrapper.scope\r\n };\r\n }\r\n }\r\n return promises;\r\n }\r\n\r\n function updateDOM() {\r\n let promises = [];\r\n const toBePrepended = [];\r\n const toBeRemoved = [];\r\n const inserted = [];\r\n\r\n buffer.forEach((wrapper, i) => {\r\n switch (wrapper.op) {\r\n case 'prepend':\r\n toBePrepended.unshift(wrapper);\r\n break;\r\n case 'append':\r\n insertWrapperContent(wrapper, i);\r\n wrapper.op = 'none';\r\n inserted.push(wrapper);\r\n break;\r\n case 'insert':\r\n promises = promises.concat(createElement(wrapper, i, viewport.insertElementAnimated));\r\n wrapper.op = 'none';\r\n inserted.push(wrapper);\r\n break;\r\n case 'remove':\r\n toBeRemoved.push(wrapper);\r\n }\r\n });\r\n\r\n toBeRemoved.forEach((wrapper) => promises = promises.concat(viewport.removeItem(wrapper)));\r\n\r\n if (toBePrepended.length)\r\n toBePrepended.forEach((wrapper) => {\r\n insertWrapperContent(wrapper);\r\n wrapper.op = 'none';\r\n });\r\n\r\n buffer.forEach((item, i) => item.scope.$index = buffer.first + i);\r\n\r\n return {\r\n prepended: toBePrepended,\r\n removed: toBeRemoved,\r\n inserted: inserted,\r\n animated: promises\r\n };\r\n\r\n }\r\n\r\n function updatePaddings(rid, updates) {\r\n // schedule another doAdjust after animation completion\r\n if (updates.animated.length) {\r\n $q.all(updates.animated).then(() => {\r\n viewport.adjustPaddings();\r\n doAdjust(rid);\r\n });\r\n } else {\r\n viewport.adjustPaddings();\r\n }\r\n }\r\n\r\n function enqueueFetch(rid, updates) {\r\n if (viewport.shouldLoadBottom()) {\r\n if (!updates || buffer.effectiveHeight(updates.inserted) > 0) {\r\n // this means that at least one item appended in the last batch has height > 0\r\n if (pending.push(true) === 1) {\r\n adapter.loading(true);\r\n fetch(rid);\r\n }\r\n }\r\n } else if (viewport.shouldLoadTop()) {\r\n if ((!updates || buffer.effectiveHeight(updates.prepended) > 0) || pending[0]) {\r\n // this means that at least one item appended in the last batch has height > 0\r\n // pending[0] = true means that previous fetch was appending. We need to force at least one prepend\r\n // BTW there will always be at least 1 element in the pending array because bottom is fetched first\r\n if (pending.push(false) === 1) {\r\n adapter.loading(true);\r\n fetch(rid);\r\n }\r\n }\r\n }\r\n }\r\n\r\n function processUpdates() {\r\n const updates = updateDOM();\r\n\r\n // We need the item bindings to be processed before we can do adjustments\r\n !$scope.$$phase && !$rootScope.$$phase && $scope.$digest();\r\n\r\n updates.inserted.forEach(w => elementRoutines.showElement(w));\r\n updates.prepended.forEach(w => elementRoutines.showElement(w));\r\n return updates;\r\n }\r\n\r\n function doAdjust(rid) {\r\n if (!rid) { // dismiss pending requests\r\n pending = [];\r\n rid = ++ridActual;\r\n }\r\n\r\n const updates = processUpdates();\r\n\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n updatePaddings(rid, updates);\r\n enqueueFetch(rid);\r\n\r\n if (!pending.length) {\r\n adapter.calculateProperties();\r\n }\r\n }\r\n\r\n function doAdjustAfterFetch(rid) {\r\n const updates = processUpdates();\r\n\r\n viewport.onAfterPrepend(updates);\r\n\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n updatePaddings(rid, updates);\r\n onRenderHandlersRunner();\r\n enqueueFetch(rid, updates);\r\n pending.shift();\r\n\r\n if (pending.length)\r\n fetch(rid);\r\n else {\r\n adapter.loading(false);\r\n bindEvents();\r\n adapter.calculateProperties();\r\n }\r\n }\r\n\r\n function fetch(rid) {\r\n if (pending[0]) {// scrolling down\r\n if (buffer.length && !viewport.shouldLoadBottom()) {\r\n doAdjustAfterFetch(rid);\r\n } else {\r\n fetchNext((result) => {\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n if (result.length < bufferSize) {\r\n buffer.eof = true;\r\n }\r\n\r\n if (result.length > 0) {\r\n viewport.clipTop();\r\n buffer.append(result);\r\n }\r\n\r\n doAdjustAfterFetch(rid);\r\n });\r\n }\r\n } else { // scrolling up\r\n if (buffer.length && !viewport.shouldLoadTop()) {\r\n doAdjustAfterFetch(rid);\r\n } else {\r\n fetchPrevious((result) => {\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n if (result.length < bufferSize) {\r\n buffer.bof = true;\r\n // log 'bof is reached'\r\n }\r\n\r\n if (result.length > 0) {\r\n if (buffer.length) {\r\n viewport.clipBottom();\r\n }\r\n buffer.prepend(result);\r\n }\r\n\r\n doAdjustAfterFetch(rid);\r\n });\r\n }\r\n }\r\n }\r\n\r\n function resizeAndScrollHandler() {\r\n if (!$rootScope.$$phase && !adapter.isLoading && !adapter.disabled) {\r\n\r\n enqueueFetch(ridActual);\r\n\r\n if (pending.length) {\r\n unbindEvents();\r\n } else {\r\n adapter.calculateProperties();\r\n !$scope.$$phase && $scope.$digest();\r\n }\r\n }\r\n }\r\n\r\n function wheelHandler(event) {\r\n if (!adapter.disabled) {\r\n const scrollTop = viewport[0].scrollTop;\r\n const yMax = viewport[0].scrollHeight - viewport[0].clientHeight;\r\n\r\n if ((scrollTop === 0 && !buffer.bof) || (scrollTop === yMax && !buffer.eof)) {\r\n event.preventDefault();\r\n }\r\n }\r\n }\r\n }\r\n\r\n }\r\n ]);\n\n\n// WEBPACK FOOTER //\n// ./src/ui-scroll.js","/*!\r\n globals: angular, window\r\n List of used element methods available in JQuery but not in JQuery Lite\r\n element.before(elem)\r\n element.height()\r\n element.outerHeight(true)\r\n element.height(value) = only for Top/Bottom padding elements\r\n element.scrollTop()\r\n element.scrollTop(value)\r\n */\r\n\r\nexport default class JQLiteExtras {\r\n\r\n registerFor(element) {\r\n let convertToPx, css, getStyle, isWindow;\r\n // angular implementation blows up if elem is the window\r\n css = angular.element.prototype.css;\r\n\r\n element.prototype.css = function (name, value) {\r\n let self = this;\r\n let elem = self[0];\r\n if (!(!elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style)) {\r\n return css.call(self, name, value);\r\n }\r\n };\r\n\r\n // as defined in angularjs v1.0.5\r\n isWindow = (obj) => obj && obj.document && obj.location && obj.alert && obj.setInterval;\r\n\r\n function scrollTo(self, direction, value) {\r\n let elem = self[0];\r\n let [method, prop, preserve] = {\r\n top: [\r\n 'scrollTop',\r\n 'pageYOffset',\r\n 'scrollLeft'\r\n ],\r\n left: [\r\n 'scrollLeft',\r\n 'pageXOffset',\r\n 'scrollTop'\r\n ]\r\n }[direction];\r\n\r\n const isValueDefined = typeof value !== 'undefined';\r\n if (isWindow(elem)) {\r\n if (isValueDefined) {\r\n return elem.scrollTo(self[preserve].call(self), value);\r\n }\r\n return (prop in elem) ? elem[prop] : elem.document.documentElement[method];\r\n } else {\r\n if (isValueDefined) {\r\n elem[method] = value;\r\n }\r\n return elem[method];\r\n }\r\n }\r\n\r\n if (window.getComputedStyle) {\r\n getStyle = (elem) => window.getComputedStyle(elem, null);\r\n convertToPx = (elem, value) => parseFloat(value);\r\n } else {\r\n getStyle = (elem) => elem.currentStyle;\r\n convertToPx = (elem, value) => {\r\n let left, result, rs, rsLeft, style;\r\n let core_pnum = /[+-]?(?:\\d*\\.|)\\d+(?:[eE][+-]?\\d+|)/.source;\r\n let rnumnonpx = new RegExp('^(' + core_pnum + ')(?!px)[a-z%]+$', 'i');\r\n\r\n if (!rnumnonpx.test(value)) {\r\n return parseFloat(value);\r\n }\r\n\r\n // ported from JQuery\r\n style = elem.style;\r\n left = style.left;\r\n rs = elem.runtimeStyle;\r\n rsLeft = rs && rs.left;\r\n if (rs) {\r\n rs.left = style.left;\r\n }\r\n // put in the new values to get a computed style out\r\n style.left = value;\r\n result = style.pixelLeft;\r\n style.left = left;\r\n if (rsLeft) {\r\n rs.left = rsLeft;\r\n }\r\n return result;\r\n };\r\n }\r\n\r\n function getMeasurements(elem, measure) {\r\n let base, borderA, borderB, computedMarginA, computedMarginB, computedStyle, dirA, dirB, marginA, marginB, paddingA, paddingB;\r\n\r\n if (isWindow(elem)) {\r\n base = document.documentElement[{height: 'clientHeight', width: 'clientWidth'}[measure]];\r\n\r\n return {\r\n base: base,\r\n padding: 0,\r\n border: 0,\r\n margin: 0\r\n };\r\n }\r\n\r\n // Start with offset property\r\n [\r\n base,\r\n dirA,\r\n dirB\r\n ] = {\r\n width: [\r\n elem.offsetWidth,\r\n 'Left',\r\n 'Right'\r\n ],\r\n height: [\r\n elem.offsetHeight,\r\n 'Top',\r\n 'Bottom'\r\n ]\r\n }[measure];\r\n\r\n computedStyle = getStyle(elem);\r\n paddingA = convertToPx(elem, computedStyle['padding' + dirA]) || 0;\r\n paddingB = convertToPx(elem, computedStyle['padding' + dirB]) || 0;\r\n borderA = convertToPx(elem, computedStyle['border' + dirA + 'Width']) || 0;\r\n borderB = convertToPx(elem, computedStyle['border' + dirB + 'Width']) || 0;\r\n computedMarginA = computedStyle['margin' + dirA];\r\n computedMarginB = computedStyle['margin' + dirB];\r\n\r\n // I do not care for width for now, so this hack is irrelevant\r\n // if ( !supportsPercentMargin )\r\n // computedMarginA = hackPercentMargin( elem, computedStyle, computedMarginA )\r\n // computedMarginB = hackPercentMargin( elem, computedStyle, computedMarginB )\r\n marginA = convertToPx(elem, computedMarginA) || 0;\r\n marginB = convertToPx(elem, computedMarginB) || 0;\r\n\r\n return {\r\n base: base,\r\n padding: paddingA + paddingB,\r\n border: borderA + borderB,\r\n margin: marginA + marginB\r\n };\r\n }\r\n\r\n function getWidthHeight(elem, direction, measure) {\r\n let computedStyle, result;\r\n\r\n let measurements = getMeasurements(elem, direction);\r\n\r\n if (measurements.base > 0) {\r\n return {\r\n base: measurements.base - measurements.padding - measurements.border,\r\n outer: measurements.base,\r\n outerfull: measurements.base + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // Fall back to computed then uncomputed css if necessary\r\n computedStyle = getStyle(elem);\r\n result = computedStyle[direction];\r\n\r\n if (result < 0 || result === null) {\r\n result = elem.style[direction] || 0;\r\n }\r\n\r\n // Normalize \"\", auto, and prepare for extra\r\n result = parseFloat(result) || 0;\r\n\r\n return {\r\n base: result - measurements.padding - measurements.border,\r\n outer: result,\r\n outerfull: result + measurements.padding + measurements.border + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // define missing methods\r\n return angular.forEach({\r\n before(newElem) {\r\n var children, elem, i, j, parent, ref, self;\r\n self = this;\r\n elem = self[0];\r\n parent = self.parent();\r\n children = parent.contents();\r\n if (children[0] === elem) {\r\n return parent.prepend(newElem);\r\n } else {\r\n for (i = j = 1, ref = children.length - 1; 1 <= ref ? j <= ref : j >= ref; i = 1 <= ref ? ++j : --j) {\r\n if (children[i] === elem) {\r\n angular.element(children[i - 1]).after(newElem);\r\n return;\r\n }\r\n }\r\n throw new Error('invalid DOM structure ' + elem.outerHTML);\r\n }\r\n },\r\n height (value){\r\n var self;\r\n self = this;\r\n if (typeof value !== 'undefined') {\r\n if (Number.isInteger(value)) {\r\n value = value + 'px';\r\n }\r\n return css.call(self, 'height', value);\r\n } else {\r\n return getWidthHeight(this[0], 'height', 'base');\r\n }\r\n },\r\n outerHeight(option) {\r\n return getWidthHeight(this[0], 'height', option ? 'outerfull' : 'outer');\r\n },\r\n outerWidth(option) {\r\n return getWidthHeight(this[0], 'width', option ? 'outerfull' : 'outer');\r\n },\r\n\r\n /*\r\n The offset setter method is not implemented\r\n */\r\n offset(value) {\r\n let docElem, win;\r\n let self = this;\r\n let box = {\r\n top: 0,\r\n left: 0\r\n };\r\n let elem = self[0];\r\n let doc = elem && elem.ownerDocument;\r\n\r\n if (arguments.length) {\r\n if (value === undefined) {\r\n return self;\r\n }\r\n // TODO: implement setter\r\n throw new Error('offset setter method is not implemented');\r\n }\r\n\r\n if (!doc) {\r\n return;\r\n }\r\n\r\n docElem = doc.documentElement;\r\n\r\n // TODO: Make sure it's not a disconnected DOM node\r\n\r\n if (elem.getBoundingClientRect != null) {\r\n box = elem.getBoundingClientRect();\r\n }\r\n\r\n win = doc.defaultView || doc.parentWindow;\r\n\r\n return {\r\n top: box.top + (win.pageYOffset || docElem.scrollTop) - (docElem.clientTop || 0),\r\n left: box.left + (win.pageXOffset || docElem.scrollLeft) - (docElem.clientLeft || 0)\r\n };\r\n },\r\n scrollTop(value) {\r\n return scrollTo(this, 'top', value);\r\n },\r\n scrollLeft(value) {\r\n return scrollTo(this, 'left', value);\r\n }\r\n }, (value, key) => {\r\n if (!element.prototype[key]) {\r\n return element.prototype[key] = value;\r\n }\r\n });\r\n }\r\n\r\n}\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/modules/jqLiteExtras.js","const hideClassToken = 'ng-ui-scroll-hide';\r\n\r\nfunction addCSSRule(sheet, selector, rules, index) {\r\n if('insertRule' in sheet) {\r\n sheet.insertRule(selector + '{' + rules + '}', index);\r\n }\r\n else if('addRule' in sheet) {\r\n sheet.addRule(selector, rules, index);\r\n }\r\n}\r\n\r\nexport default class ElementRoutines {\r\n\r\n constructor($injector, $q) {\r\n this.$animate = ($injector.has && $injector.has('$animate')) ? $injector.get('$animate') : null;\r\n this.isAngularVersionLessThen1_3 = angular.version.major === 1 && angular.version.minor < 3;\r\n this.$q = $q;\r\n addCSSRule(document.styleSheets[0], '.' + hideClassToken, 'display: none');\r\n }\r\n\r\n hideElement(wrapper) {\r\n wrapper.element.addClass(hideClassToken);\r\n }\r\n\r\n showElement(wrapper) {\r\n wrapper.element.removeClass(hideClassToken);\r\n }\r\n\r\n insertElement(newElement, previousElement) {\r\n previousElement.after(newElement);\r\n return [];\r\n }\r\n\r\n removeElement(wrapper) {\r\n wrapper.element.remove();\r\n wrapper.scope.$destroy();\r\n return [];\r\n }\r\n\r\n insertElementAnimated(newElement, previousElement) {\r\n if (!this.$animate) {\r\n return this.insertElement(newElement, previousElement);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n // no need for parent - previous element is never null\r\n this.$animate.enter(newElement, null, previousElement, () => deferred.resolve());\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n // no need for parent - previous element is never null\r\n return [this.$animate.enter(newElement, null, previousElement)];\r\n }\r\n\r\n removeElementAnimated(wrapper) {\r\n if (!this.$animate) {\r\n return this.removeElement(wrapper);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n this.$animate.leave(wrapper.element, () => {\r\n wrapper.scope.$destroy();\r\n return deferred.resolve();\r\n });\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n return [(this.$animate.leave(wrapper.element)).then(() => wrapper.scope.$destroy())];\r\n }\r\n}\n\n\n// WEBPACK FOOTER //\n// ./src/modules/elementRoutines.js","export default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {\r\n const buffer = Object.create(Array.prototype);\r\n\r\n Object.assign(buffer, {\r\n size: bufferSize,\r\n\r\n reset(startIndex) {\r\n buffer.remove(0, buffer.length);\r\n buffer.eof = false;\r\n buffer.bof = false;\r\n buffer.first = startIndex;\r\n buffer.next = startIndex;\r\n buffer.minIndex = startIndex;\r\n buffer.maxIndex = startIndex;\r\n buffer.minIndexUser = null;\r\n buffer.maxIndexUser = null;\r\n },\r\n\r\n append(items) {\r\n items.forEach((item) => {\r\n ++buffer.next;\r\n buffer.insert('append', item);\r\n });\r\n buffer.maxIndex = buffer.eof ? buffer.next - 1 : Math.max(buffer.next - 1, buffer.maxIndex);\r\n },\r\n\r\n prepend(items) {\r\n items.reverse().forEach((item) => {\r\n --buffer.first;\r\n buffer.insert('prepend', item);\r\n });\r\n buffer.minIndex = buffer.bof ? buffer.minIndex = buffer.first : Math.min(buffer.first, buffer.minIndex);\r\n },\r\n\r\n /**\r\n * inserts wrapped element in the buffer\r\n * the first argument is either operation keyword (see below) or a number for operation 'insert'\r\n * for insert the number is the index for the buffer element the new one have to be inserted after\r\n * operations: 'append', 'prepend', 'insert', 'remove', 'update', 'none'\r\n */\r\n insert(operation, item, isTop) {\r\n const wrapper = {\r\n item: item\r\n };\r\n\r\n if (operation % 1 === 0) {// it is an insert\r\n wrapper.op = 'insert';\r\n buffer.splice(operation, 0, wrapper);\r\n if(isTop) {\r\n buffer.first--;\r\n }\r\n else {\r\n buffer.next++;\r\n }\r\n } else {\r\n wrapper.op = operation;\r\n switch (operation) {\r\n case 'append':\r\n buffer.push(wrapper);\r\n break;\r\n case 'prepend':\r\n buffer.unshift(wrapper);\r\n break;\r\n }\r\n }\r\n },\r\n\r\n // removes elements from buffer\r\n remove(arg1, arg2) {\r\n if (Number.isInteger(arg1)) {\r\n // removes items from arg1 (including) through arg2 (excluding)\r\n for (let i = arg1; i < arg2; i++) {\r\n elementRoutines.removeElement(buffer[i]);\r\n }\r\n return buffer.splice(arg1, arg2 - arg1);\r\n }\r\n // removes single item(wrapper) from the buffer\r\n buffer.splice(buffer.indexOf(arg1), 1);\r\n if(arg1._op === 'isTop' && buffer.first === this.getAbsMinIndex()) {\r\n this.incrementMinIndex();\r\n }\r\n else {\r\n this.decrementMaxIndex();\r\n }\r\n if(arg1._op === 'isTop') {\r\n buffer.first++;\r\n }\r\n else {\r\n buffer.next--;\r\n }\r\n if(!buffer.length) {\r\n buffer.first = 1;\r\n buffer.next = 1;\r\n }\r\n\r\n return elementRoutines.removeElementAnimated(arg1);\r\n },\r\n\r\n incrementMinIndex() {\r\n if(buffer.minIndexUser !== null) {\r\n if(buffer.minIndex > buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n return;\r\n }\r\n if(buffer.minIndex === buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n }\r\n }\r\n buffer.minIndex++;\r\n },\r\n\r\n decrementMaxIndex() {\r\n if(buffer.maxIndexUser !== null && buffer.maxIndex <= buffer.maxIndexUser) {\r\n buffer.maxIndexUser--;\r\n }\r\n buffer.maxIndex--;\r\n },\r\n\r\n getAbsMinIndex() {\r\n if(buffer.minIndexUser !== null) {\r\n return Math.min(buffer.minIndexUser, buffer.minIndex);\r\n }\r\n return buffer.minIndex;\r\n },\r\n\r\n getAbsMaxIndex() {\r\n if(buffer.maxIndexUser !== null) {\r\n return Math.max(buffer.maxIndexUser, buffer.maxIndex);\r\n }\r\n return buffer.maxIndex;\r\n },\r\n\r\n effectiveHeight(elements) {\r\n if (!elements.length) {\r\n return 0;\r\n }\r\n let top = Number.MAX_VALUE;\r\n let bottom = Number.NEGATIVE_INFINITY;\r\n elements.forEach((wrapper) => {\r\n if (wrapper.element[0].offsetParent) {\r\n // element style is not display:none\r\n top = Math.min(top, wrapper.element.offset().top);\r\n bottom = Math.max(bottom, wrapper.element.offset().top + wrapper.element.outerHeight(true));\r\n }\r\n });\r\n return Math.max(0, bottom - top);\r\n }\r\n\r\n });\r\n\r\n buffer.reset(startIndex);\r\n\r\n return buffer;\r\n}\n\n\n// WEBPACK FOOTER //\n// ./src/modules/buffer.js","import Padding from './padding';\r\n\r\nexport default function Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding) {\r\n let topPadding = null;\r\n let bottomPadding = null;\r\n const viewport = viewportController && viewportController.viewport ? viewportController.viewport : angular.element(window);\r\n const container = viewportController && viewportController.container ? viewportController.container : undefined;\r\n const scope = viewportController && viewportController.scope ? viewportController.scope : $rootScope;\r\n\r\n viewport.css({\r\n 'overflow-anchor': 'none',\r\n 'overflow-y': 'auto',\r\n 'display': 'block'\r\n });\r\n\r\n function bufferPadding() {\r\n return viewport.outerHeight() * padding; // some extra space to initiate preload\r\n }\r\n\r\n Object.assign(viewport, {\r\n getScope() {\r\n return scope;\r\n },\r\n\r\n createPaddingElements(template) {\r\n topPadding = new Padding(template);\r\n bottomPadding = new Padding(template);\r\n element.before(topPadding.element);\r\n element.after(bottomPadding.element);\r\n topPadding.height(0);\r\n bottomPadding.height(0);\r\n },\r\n\r\n applyContainerStyle() {\r\n if (!container) {\r\n return true;\r\n }\r\n if(container !== viewport) {\r\n viewport.css('height', window.getComputedStyle(container[0]).height);\r\n }\r\n return viewport.height() > 0;\r\n },\r\n\r\n bottomDataPos() {\r\n let scrollHeight = viewport[0].scrollHeight;\r\n scrollHeight = scrollHeight != null ? scrollHeight : viewport[0].document.documentElement.scrollHeight;\r\n return scrollHeight - bottomPadding.height();\r\n },\r\n\r\n topDataPos() {\r\n return topPadding.height();\r\n },\r\n\r\n bottomVisiblePos() {\r\n return viewport.scrollTop() + viewport.outerHeight();\r\n },\r\n\r\n topVisiblePos() {\r\n return viewport.scrollTop();\r\n },\r\n\r\n insertElement(e, sibling) {\r\n return elementRoutines.insertElement(e, sibling || topPadding.element);\r\n },\r\n\r\n insertElementAnimated(e, sibling) {\r\n return elementRoutines.insertElementAnimated(e, sibling || topPadding.element);\r\n },\r\n\r\n shouldLoadBottom() {\r\n return !buffer.eof && viewport.bottomDataPos() < viewport.bottomVisiblePos() + bufferPadding();\r\n },\r\n\r\n clipBottom() {\r\n // clip the invisible items off the bottom\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.bottomDataPos() - viewport.bottomVisiblePos() - bufferPadding();\r\n\r\n for (let i = buffer.length - 1; i >= 0; i--) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n bottomPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n buffer.eof = false;\r\n buffer.remove(buffer.length - overage, buffer.length);\r\n buffer.next -= overage;\r\n viewport.adjustPaddings();\r\n }\r\n },\r\n\r\n shouldLoadTop() {\r\n return !buffer.bof && (viewport.topDataPos() > viewport.topVisiblePos() - bufferPadding());\r\n },\r\n\r\n clipTop() {\r\n // clip the invisible items off the top\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.topVisiblePos() - viewport.topDataPos() - bufferPadding();\r\n\r\n for (let i = 0; i < buffer.length; i++) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n topPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n // we need to adjust top padding element before items are removed from top\r\n // to avoid strange behaviour of scroll bar during remove top items when we are at the very bottom\r\n topPadding.height(topPadding.height() + overageHeight);\r\n buffer.bof = false;\r\n buffer.remove(0, overage);\r\n buffer.first += overage;\r\n }\r\n },\r\n\r\n adjustPaddings() {\r\n if (!buffer.length) {\r\n return;\r\n }\r\n\r\n // precise heights calculation based on items that are in buffer or that were in buffer once\r\n const visibleItemsHeight = buffer.reduce((summ, item) => summ + item.element.outerHeight(true), 0);\r\n\r\n let topPaddingHeight = 0, topCount = 0;\r\n topPadding.cache.forEach(item => {\r\n if(item.index < buffer.first) {\r\n topPaddingHeight += item.height;\r\n topCount++;\r\n }\r\n });\r\n\r\n let bottomPaddingHeight = 0, bottomCount = 0;\r\n bottomPadding.cache.forEach(item => {\r\n if(item.index >= buffer.next) {\r\n bottomPaddingHeight += item.height;\r\n bottomCount++;\r\n }\r\n });\r\n\r\n const totalHeight = visibleItemsHeight + topPaddingHeight + bottomPaddingHeight;\r\n const averageItemHeight = totalHeight / (topCount + bottomCount + buffer.length);\r\n\r\n // average heights calculation, items that have never been reached\r\n let adjustTopPadding = buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser;\r\n let adjustBottomPadding = buffer.maxIndexUser !== null && buffer.maxIndex < buffer.maxIndexUser;\r\n let topPaddingHeightAdd = adjustTopPadding ? (buffer.minIndex - buffer.minIndexUser) * averageItemHeight : 0;\r\n let bottomPaddingHeightAdd = adjustBottomPadding ? (buffer.maxIndexUser - buffer.maxIndex) * averageItemHeight : 0;\r\n\r\n // paddings combine adjustment\r\n topPadding.height(topPaddingHeight + topPaddingHeightAdd);\r\n bottomPadding.height(bottomPaddingHeight + bottomPaddingHeightAdd);\r\n },\r\n\r\n onAfterMinIndexSet(topPaddingHeightOld) {\r\n // additional scrollTop adjustment in case of datasource.minIndex external set\r\n if (buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser) {\r\n let diff = topPadding.height() - topPaddingHeightOld;\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n while((diff -= viewport.scrollTop()) > 0) {\r\n bottomPadding.height(bottomPadding.height() + diff);\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n }\r\n }\r\n },\r\n\r\n onAfterPrepend(updates) {\r\n if (!updates.prepended.length)\r\n return;\r\n const height = buffer.effectiveHeight(updates.prepended);\r\n const paddingHeight = topPadding.height() - height;\r\n if (paddingHeight >= 0) {\r\n topPadding.height(paddingHeight);\r\n }\r\n else {\r\n topPadding.height(0);\r\n viewport.scrollTop(viewport.scrollTop() - paddingHeight);\r\n }\r\n },\r\n\r\n resetTopPadding() {\r\n topPadding.height(0);\r\n topPadding.cache.clear();\r\n },\r\n\r\n resetBottomPadding() {\r\n bottomPadding.height(0);\r\n bottomPadding.cache.clear();\r\n },\r\n\r\n removeCacheItem(item, isTop) {\r\n topPadding.cache.remove(item, isTop);\r\n bottomPadding.cache.remove(item, isTop);\r\n },\r\n\r\n removeItem(item) {\r\n this.removeCacheItem(item);\r\n return buffer.remove(item);\r\n }\r\n });\r\n\r\n return viewport;\r\n}\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/modules/viewport.js","// Can't just extend the Array, due to Babel does not support built-in classes extending\r\n// This solution was taken from https://stackoverflow.com/questions/46897414/es6-class-extends-array-workaround-for-es5-babel-transpile\r\nclass CacheProto {\r\n add(item) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === item.scope.$index) {\r\n this[i].height = item.element.outerHeight();\r\n return;\r\n }\r\n }\r\n this.push({\r\n index: item.scope.$index,\r\n height: item.element.outerHeight()\r\n });\r\n this.sort((a, b) => ((a.index < b.index) ? -1 : ((a.index > b.index) ? 1 : 0)));\r\n }\r\n\r\n remove(argument, _isTop) {\r\n const index = argument % 1 === 0 ? argument : argument.scope.$index;\r\n const isTop = argument % 1 === 0 ? _isTop : argument._op === 'isTop';\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === index) {\r\n this.splice(i, 1);\r\n break;\r\n }\r\n }\r\n if(!isTop) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index > index) {\r\n this[i].index--;\r\n }\r\n }\r\n }\r\n }\r\n\r\n clear() {\r\n this.length = 0;\r\n }\r\n}\r\n\r\nfunction Cache() {\r\n const instance = [];\r\n instance.push.apply(instance, arguments);\r\n Object.setPrototypeOf(instance, Cache.prototype);\r\n return instance;\r\n}\r\nCache.prototype = Object.create(Array.prototype);\r\nObject.getOwnPropertyNames(CacheProto.prototype).forEach(methodName =>\r\n Cache.prototype[methodName] = CacheProto.prototype[methodName]\r\n);\r\n\r\nfunction generateElement(template) {\r\n if(template.nodeType !== Node.ELEMENT_NODE) {\r\n throw new Error('ui-scroll directive requires an Element node for templating the view');\r\n }\r\n let element;\r\n switch (template.tagName.toLowerCase()) {\r\n case 'dl':\r\n throw new Error(`ui-scroll directive does not support <${template.tagName}> as a repeating tag: ${template.outerHTML}`);\r\n case 'tr':\r\n let table = angular.element('
');\r\n element = table.find('tr');\r\n break;\r\n case 'li':\r\n element = angular.element('
  • ');\r\n break;\r\n default:\r\n element = angular.element('
    ');\r\n }\r\n return element;\r\n}\r\n\r\nclass Padding {\r\n constructor(template) {\r\n this.element = generateElement(template);\r\n this.cache = new Cache();\r\n }\r\n\r\n height() {\r\n return this.element.height.apply(this.element, arguments);\r\n }\r\n}\r\n\r\nexport default Padding;\n\n\n// WEBPACK FOOTER //\n// ./src/modules/padding.js","class Adapter {\r\n\r\n constructor($scope, $parse, $attr, viewport, buffer, doAdjust, reload) {\r\n this.$parse = $parse;\r\n this.$attr = $attr;\r\n this.viewport = viewport;\r\n this.buffer = buffer;\r\n\r\n this.doAdjust = doAdjust;\r\n this.reload = reload;\r\n\r\n this.isLoading = false;\r\n this.disabled = false;\r\n\r\n const viewportScope = viewport.getScope();\r\n this.startScope = viewportScope.$parent ? viewportScope : $scope;\r\n\r\n this.publicContext = {};\r\n this.assignAdapter($attr.adapter);\r\n this.generatePublicContext();\r\n }\r\n\r\n assignAdapter(adapterAttr) {\r\n if (!adapterAttr || !(adapterAttr = adapterAttr.replace(/^\\s+|\\s+$/gm, ''))) {\r\n return;\r\n }\r\n let adapterOnScope;\r\n\r\n try {\r\n this.$parse(adapterAttr).assign(this.startScope, {});\r\n adapterOnScope = this.$parse(adapterAttr)(this.startScope);\r\n }\r\n catch (error) {\r\n error.message = `Angular ui-scroll Adapter assignment exception.\\n` +\r\n `Can't parse \"${adapterAttr}\" expression.\\n` +\r\n error.message;\r\n throw error;\r\n }\r\n\r\n Object.assign(adapterOnScope, this.publicContext);\r\n this.publicContext = adapterOnScope;\r\n }\r\n\r\n generatePublicContext() {\r\n // these methods will be accessible out of ui-scroll via user defined adapter\r\n const publicMethods = ['reload', 'applyUpdates', 'append', 'prepend', 'isBOF', 'isEOF', 'isEmpty'];\r\n for (let i = publicMethods.length - 1; i >= 0; i--) {\r\n this.publicContext[publicMethods[i]] = this[publicMethods[i]].bind(this);\r\n }\r\n\r\n // these read-only props will be accessible out of ui-scroll via user defined adapter\r\n const publicProps = ['isLoading', 'topVisible', 'topVisibleElement', 'topVisibleScope', 'bottomVisible', 'bottomVisibleElement', 'bottomVisibleScope'];\r\n for (let i = publicProps.length - 1; i >= 0; i--) {\r\n let property, attr = this.$attr[publicProps[i]];\r\n Object.defineProperty(this, publicProps[i], {\r\n get: () => property,\r\n set: (value) => {\r\n property = value;\r\n this.publicContext[publicProps[i]] = value;\r\n if (attr) {\r\n this.$parse(attr).assign(this.startScope, value);\r\n }\r\n }\r\n });\r\n }\r\n\r\n // non-read-only public property\r\n Object.defineProperty(this.publicContext, 'disabled', {\r\n get: () => this.disabled,\r\n set: (value) => (!(this.disabled = value)) ? this.doAdjust() : null\r\n });\r\n }\r\n\r\n loading(value) {\r\n this.isLoading = value;\r\n }\r\n\r\n isBOF() {\r\n return this.buffer.bof;\r\n }\r\n\r\n isEOF() {\r\n return this.buffer.eof;\r\n }\r\n\r\n isEmpty() {\r\n return !this.buffer.length;\r\n }\r\n\r\n append(newItems) {\r\n this.buffer.append(newItems);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n prepend(newItems) {\r\n this.buffer.prepend(newItems);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n applyUpdates(arg1, arg2) {\r\n if (typeof arg1 === 'function') {\r\n this.applyUpdatesFunc(arg1);\r\n } else {\r\n this.applyUpdatesIndex(arg1, arg2);\r\n }\r\n this.doAdjust();\r\n }\r\n\r\n applyUpdatesFunc(cb) {\r\n this.buffer.slice(0).forEach((wrapper) => {\r\n // we need to do it on the buffer clone, because buffer content\r\n // may change as we iterate through\r\n this.applyUpdate(wrapper, cb(wrapper.item, wrapper.scope, wrapper.element));\r\n });\r\n }\r\n\r\n applyUpdatesIndex(index, newItems) {\r\n if (index % 1 !== 0) {\r\n throw new Error('applyUpdates - ' + index + ' is not a valid index (should be an integer)');\r\n }\r\n const _index = index - this.buffer.first;\r\n\r\n // apply updates only within buffer\r\n if (_index >= 0 && _index < this.buffer.length) {\r\n this.applyUpdate(this.buffer[_index], newItems);\r\n }\r\n // out-of-buffer case: deletion may affect Paddings\r\n else if(index >= this.buffer.getAbsMinIndex() && index <= this.buffer.getAbsMaxIndex()) {\r\n if(Array.isArray(newItems) && !newItems.length) {\r\n this.viewport.removeCacheItem(index, index === this.buffer.minIndex);\r\n if(index === this.buffer.getAbsMinIndex()) {\r\n this.buffer.incrementMinIndex();\r\n }\r\n else {\r\n this.buffer.decrementMaxIndex();\r\n }\r\n }\r\n }\r\n }\r\n\r\n applyUpdate(wrapper, newItems) {\r\n if (!Array.isArray(newItems)) {\r\n return;\r\n }\r\n let position = this.buffer.indexOf(wrapper);\r\n if (!newItems.reverse().some(newItem => newItem === wrapper.item)) {\r\n wrapper.op = 'remove';\r\n if(position === 0 && !newItems.length) {\r\n wrapper._op = 'isTop'; // to catch \"first\" edge case on remove\r\n }\r\n }\r\n newItems.forEach((newItem) => {\r\n if (newItem === 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\t\tif(!__webpack_require__.o(exports, name)) {\n \t\t\tObject.defineProperty(exports, name, {\n \t\t\t\tconfigurable: false,\n \t\t\t\tenumerable: true,\n \t\t\t\tget: getter\n \t\t\t});\n \t\t}\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = 0);\n\n\n\n// WEBPACK FOOTER //\n// webpack/bootstrap f32df6d97ca6583cfb5d","import JQLiteExtras from './modules/jqLiteExtras';\nimport ElementRoutines from './modules/elementRoutines.js';\nimport ScrollBuffer from './modules/buffer.js';\nimport Viewport from './modules/viewport.js';\nimport Adapter from './modules/adapter.js';\n\nangular.module('ui.scroll', [])\n\n .constant('JQLiteExtras', JQLiteExtras)\n .run(['JQLiteExtras', (JQLiteExtras) => {\n !window.jQuery ? (new JQLiteExtras()).registerFor(angular.element) : null;\n ElementRoutines.addCSSRules();\n }])\n\n .directive('uiScrollViewport', function () {\n return {\n restrict: 'A',\n controller: [\n '$scope',\n '$element',\n function (scope, element) {\n this.container = element;\n this.viewport = element;\n this.scope = scope;\n\n angular.forEach(element.children(), child => {\n if (child.tagName.toLowerCase() === 'tbody') {\n this.viewport = angular.element(child);\n }\n });\n\n return this;\n }\n ]\n };\n })\n\n .directive('uiScroll', [\n '$log',\n '$injector',\n '$rootScope',\n '$timeout',\n '$interval',\n '$q',\n '$parse',\n function (console, $injector, $rootScope, $timeout, $interval, $q, $parse) {\n\n return {\n require: ['?^uiScrollViewport'],\n restrict: 'A',\n transclude: 'element',\n priority: 1000,\n terminal: true,\n link: link\n };\n\n function link($scope, element, $attr, controllers, linker) {\n const match = $attr.uiScroll.match(/^\\s*(\\w+)\\s+in\\s+([(\\w|\\$)\\.]+)\\s*$/);\n if (!match) {\n throw new Error('Expected uiScroll in form of \\'_item_ in _datasource_\\' but got \\'' + $attr.uiScroll + '\\'');\n }\n\n function parseNumericAttr(value, defaultValue) {\n const result = $parse(value)($scope);\n return isNaN(result) ? defaultValue : result;\n }\n\n const BUFFER_MIN = 3;\n const BUFFER_DEFAULT = 10;\n const PADDING_MIN = 0.3;\n const PADDING_DEFAULT = 0.5;\n const MAX_VIEWPORT_DELAY = 500;\n const VIEWPORT_POLLING_INTERVAL = 50;\n\n let datasource = null;\n const itemName = match[1];\n const datasourceName = match[2];\n const viewportController = controllers[0];\n const bufferSize = Math.max(BUFFER_MIN, parseNumericAttr($attr.bufferSize, BUFFER_DEFAULT));\n const padding = Math.max(PADDING_MIN, parseNumericAttr($attr.padding, PADDING_DEFAULT));\n let startIndex = parseNumericAttr($attr.startIndex, 1);\n let ridActual = 0; // current data revision id\n let pending = [];\n\n const elementRoutines = new ElementRoutines($injector, $q);\n const buffer = new ScrollBuffer(elementRoutines, bufferSize, startIndex);\n const viewport = new Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding);\n const adapter = new Adapter($scope, $parse, $attr, viewport, buffer, doAdjust, reload);\n\n if (viewportController) {\n viewportController.adapter = adapter;\n }\n\n const isDatasourceValid = () =>\n Object.prototype.toString.call(datasource) === '[object Object]' && typeof datasource.get === 'function';\n\n datasource = $parse(datasourceName)($scope); // try to get datasource on scope\n if (!isDatasourceValid()) {\n datasource = $injector.get(datasourceName); // try to inject datasource as service\n if (!isDatasourceValid()) {\n throw new Error(datasourceName + ' is not a valid datasource');\n }\n }\n\n let onRenderHandlers = [];\n function onRenderHandlersRunner() {\n onRenderHandlers.forEach(handler => handler.run());\n onRenderHandlers = [];\n }\n function persistDatasourceIndex(datasource, propName) {\n let getter;\n // need to postpone min/maxIndexUser processing if the view is empty\n if(Number.isInteger(datasource[propName])) {\n getter = datasource[propName];\n if(Number.isInteger(getter)) {\n onRenderHandlers = onRenderHandlers.filter(handler => handler.id !== propName);\n onRenderHandlers.push({\n id: propName,\n run: () => datasource[propName] = getter\n });\n }\n }\n }\n\n function defineDatasourceIndex(datasource, propName, propUserName) {\n const descriptor = Object.getOwnPropertyDescriptor(datasource, propName);\n if (descriptor && (descriptor.set || descriptor.get)) {\n return;\n }\n let getter;\n persistDatasourceIndex(datasource, propName);\n Object.defineProperty(datasource, propName, {\n set: (value) => {\n getter = value;\n if(pending.length && !buffer.length) {\n persistDatasourceIndex(datasource, propName);\n return;\n }\n buffer[propUserName] = value;\n const topPaddingHeightOld = viewport.topDataPos();\n viewport.adjustPaddings();\n if (propName === 'minIndex') {\n viewport.onAfterMinIndexSet(topPaddingHeightOld);\n }\n },\n get: () => getter\n });\n }\n\n defineDatasourceIndex(datasource, 'minIndex', 'minIndexUser');\n defineDatasourceIndex(datasource, 'maxIndex', 'maxIndexUser');\n\n const fetchNext = (datasource.get.length !== 2) ?\n (success) => datasource.get(buffer.next, bufferSize, success) :\n (success) => {\n datasource.get({\n index: buffer.next,\n append: buffer.length ? buffer[buffer.length - 1].item : void 0,\n count: bufferSize\n }, success);\n };\n\n const fetchPrevious = (datasource.get.length !== 2) ?\n (success) => datasource.get(buffer.first - bufferSize, bufferSize, success) :\n (success) => {\n datasource.get({\n index: buffer.first - bufferSize,\n prepend: buffer.length ? buffer[0].item : void 0,\n count: bufferSize\n }, success);\n };\n\n const initialize = () => {\n let tryCount = 0;\n if(!viewport.applyContainerStyle()) {\n const timer = $interval(() => {\n tryCount++;\n if(viewport.applyContainerStyle()) {\n $interval.cancel(timer);\n doAdjust();\n }\n if(tryCount * VIEWPORT_POLLING_INTERVAL >= MAX_VIEWPORT_DELAY) {\n $interval.cancel(timer);\n throw Error(`ui-scroll directive requires a viewport with non-zero height in ${MAX_VIEWPORT_DELAY}ms`);\n }\n }, VIEWPORT_POLLING_INTERVAL);\n }\n else {\n doAdjust();\n }\n };\n\n /**\n * Build padding elements\n *\n * Calling linker is the only way I found to get access to the tag name of the template\n * to prevent the directive scope from pollution a new scope is created and destroyed\n * right after the builder creation is completed\n */\n linker((clone, scope) => {\n viewport.createPaddingElements(clone[0]);\n // we do not include the clone in the DOM. It means that the nested directives will not\n // be able to reach the parent directives, but in this case it is intentional because we\n // created the clone to access the template tag name\n scope.$destroy();\n clone.remove();\n });\n\n $scope.$on('$destroy', () => {\n unbindEvents();\n viewport.unbind('mousewheel', wheelHandler);\n });\n\n viewport.bind('mousewheel', wheelHandler);\n\n initialize();\n\n /* Private function definitions */\n\n function isInvalid(rid) {\n return (rid && rid !== ridActual) || $scope.$$destroyed;\n }\n\n function bindEvents() {\n viewport.bind('resize', resizeAndScrollHandler);\n viewport.bind('scroll', resizeAndScrollHandler);\n }\n\n function unbindEvents() {\n viewport.unbind('resize', resizeAndScrollHandler);\n viewport.unbind('scroll', resizeAndScrollHandler);\n }\n\n function reload() {\n viewport.resetTopPadding();\n viewport.resetBottomPadding();\n if (arguments.length) {\n startIndex = arguments[0];\n }\n buffer.reset(startIndex);\n persistDatasourceIndex(datasource, 'minIndex');\n persistDatasourceIndex(datasource, 'maxIndex');\n doAdjust();\n }\n\n function isElementVisible(wrapper) {\n return wrapper.element.height() && wrapper.element[0].offsetParent;\n }\n\n function visibilityWatcher(wrapper) {\n if (isElementVisible(wrapper)) {\n buffer.forEach((item) => {\n if (typeof item.unregisterVisibilityWatcher === 'function') {\n item.unregisterVisibilityWatcher();\n delete item.unregisterVisibilityWatcher;\n }\n });\n if (!pending.length) {\n $timeout(() => doAdjust());\n }\n }\n }\n\n function insertWrapperContent(wrapper, insertAfter) {\n createElement(wrapper, insertAfter, viewport.insertElement);\n if (!isElementVisible(wrapper)) {\n wrapper.unregisterVisibilityWatcher = wrapper.scope.$watch(() => visibilityWatcher(wrapper));\n }\n elementRoutines.hideElement(wrapper); // hide inserted elements before data binding\n }\n\n function createElement(wrapper, insertAfter, insertElement) {\n let promises = null;\n const sibling = (insertAfter > 0) ? buffer[insertAfter - 1].element : undefined;\n linker((clone, scope) => {\n promises = insertElement(clone, sibling);\n wrapper.element = clone;\n wrapper.scope = scope;\n scope[itemName] = wrapper.item;\n });\n // ui-scroll-grid apply\n if (adapter.transform) {\n const tdInitializer = wrapper.scope.uiScrollTdInitializer;\n if (tdInitializer && tdInitializer.linking) {\n adapter.transform(wrapper.scope, wrapper.element);\n } else {\n wrapper.scope.uiScrollTdInitializer = {\n onLink: () => adapter.transform(wrapper.scope, wrapper.element),\n scope: wrapper.scope\n };\n }\n }\n return promises;\n }\n\n function updateDOM() {\n let promises = [];\n const toBePrepended = [];\n const toBeRemoved = [];\n const inserted = [];\n\n buffer.forEach((wrapper, i) => {\n switch (wrapper.op) {\n case 'prepend':\n toBePrepended.unshift(wrapper);\n break;\n case 'append':\n insertWrapperContent(wrapper, i);\n wrapper.op = 'none';\n inserted.push(wrapper);\n break;\n case 'insert':\n promises = promises.concat(createElement(wrapper, i, viewport.insertElementAnimated));\n wrapper.op = 'none';\n inserted.push(wrapper);\n break;\n case 'remove':\n toBeRemoved.push(wrapper);\n }\n });\n\n toBeRemoved.forEach((wrapper) => promises = promises.concat(viewport.removeItem(wrapper)));\n\n if (toBePrepended.length)\n toBePrepended.forEach((wrapper) => {\n insertWrapperContent(wrapper);\n wrapper.op = 'none';\n });\n\n buffer.forEach((item, i) => item.scope.$index = buffer.first + i);\n\n return {\n prepended: toBePrepended,\n removed: toBeRemoved,\n inserted: inserted,\n animated: promises\n };\n\n }\n\n function updatePaddings(rid, updates) {\n // schedule another doAdjust after animation completion\n if (updates.animated.length) {\n $q.all(updates.animated).then(() => {\n viewport.adjustPaddings();\n doAdjust(rid);\n });\n } else {\n viewport.adjustPaddings();\n }\n }\n\n function enqueueFetch(rid, updates) {\n if (viewport.shouldLoadBottom()) {\n if (!updates || buffer.effectiveHeight(updates.inserted) > 0) {\n // this means that at least one item appended in the last batch has height > 0\n if (pending.push(true) === 1) {\n adapter.loading(true);\n fetch(rid);\n }\n }\n } else if (viewport.shouldLoadTop()) {\n if ((!updates || buffer.effectiveHeight(updates.prepended) > 0) || pending[0]) {\n // this means that at least one item appended in the last batch has height > 0\n // pending[0] = true means that previous fetch was appending. We need to force at least one prepend\n // BTW there will always be at least 1 element in the pending array because bottom is fetched first\n if (pending.push(false) === 1) {\n adapter.loading(true);\n fetch(rid);\n }\n }\n }\n }\n\n function processUpdates() {\n const updates = updateDOM();\n\n // We need the item bindings to be processed before we can do adjustments\n !$scope.$$phase && !$rootScope.$$phase && $scope.$digest();\n\n updates.inserted.forEach(w => elementRoutines.showElement(w));\n updates.prepended.forEach(w => elementRoutines.showElement(w));\n return updates;\n }\n\n function doAdjust(rid) {\n if (!rid) { // dismiss pending requests\n pending = [];\n rid = ++ridActual;\n }\n\n const updates = processUpdates();\n\n if (isInvalid(rid)) {\n return;\n }\n\n updatePaddings(rid, updates);\n enqueueFetch(rid);\n\n if (!pending.length) {\n adapter.calculateProperties();\n }\n }\n\n function doAdjustAfterFetch(rid) {\n const updates = processUpdates();\n\n viewport.onAfterPrepend(updates);\n\n if (isInvalid(rid)) {\n return;\n }\n\n updatePaddings(rid, updates);\n onRenderHandlersRunner();\n enqueueFetch(rid, updates);\n pending.shift();\n\n if (pending.length)\n fetch(rid);\n else {\n adapter.loading(false);\n bindEvents();\n adapter.calculateProperties();\n }\n }\n\n function fetch(rid) {\n if (pending[0]) {// scrolling down\n if (buffer.length && !viewport.shouldLoadBottom()) {\n doAdjustAfterFetch(rid);\n } else {\n fetchNext((result) => {\n if (isInvalid(rid)) {\n return;\n }\n\n if (result.length < bufferSize) {\n buffer.eof = true;\n }\n\n if (result.length > 0) {\n viewport.clipTop();\n buffer.append(result);\n }\n\n doAdjustAfterFetch(rid);\n });\n }\n } else { // scrolling up\n if (buffer.length && !viewport.shouldLoadTop()) {\n doAdjustAfterFetch(rid);\n } else {\n fetchPrevious((result) => {\n if (isInvalid(rid)) {\n return;\n }\n\n if (result.length < bufferSize) {\n buffer.bof = true;\n // log 'bof is reached'\n }\n\n if (result.length > 0) {\n if (buffer.length) {\n viewport.clipBottom();\n }\n buffer.prepend(result);\n }\n\n doAdjustAfterFetch(rid);\n });\n }\n }\n }\n\n function resizeAndScrollHandler() {\n if (!$rootScope.$$phase && !adapter.isLoading && !adapter.disabled) {\n\n enqueueFetch(ridActual);\n\n if (pending.length) {\n unbindEvents();\n } else {\n adapter.calculateProperties();\n !$scope.$$phase && $scope.$digest();\n }\n }\n }\n\n function wheelHandler(event) {\n if (!adapter.disabled) {\n const scrollTop = viewport[0].scrollTop;\n const yMax = viewport[0].scrollHeight - viewport[0].clientHeight;\n\n if ((scrollTop === 0 && !buffer.bof) || (scrollTop === yMax && !buffer.eof)) {\n event.preventDefault();\n }\n }\n }\n }\n\n }\n ]);\n\n\n// WEBPACK FOOTER //\n// ./src/ui-scroll.js","/*!\r\n globals: angular, window\r\n List of used element methods available in JQuery but not in JQuery Lite\r\n element.before(elem)\r\n element.height()\r\n element.outerHeight(true)\r\n element.height(value) = only for Top/Bottom padding elements\r\n element.scrollTop()\r\n element.scrollTop(value)\r\n */\r\n\r\nexport default class JQLiteExtras {\r\n\r\n registerFor(element) {\r\n let convertToPx, css, getStyle, isWindow;\r\n // angular implementation blows up if elem is the window\r\n css = angular.element.prototype.css;\r\n\r\n element.prototype.css = function (name, value) {\r\n let self = this;\r\n let elem = self[0];\r\n if (!(!elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style)) {\r\n return css.call(self, name, value);\r\n }\r\n };\r\n\r\n // as defined in angularjs v1.0.5\r\n isWindow = (obj) => obj && obj.document && obj.location && obj.alert && obj.setInterval;\r\n\r\n function scrollTo(self, direction, value) {\r\n let elem = self[0];\r\n let [method, prop, preserve] = {\r\n top: [\r\n 'scrollTop',\r\n 'pageYOffset',\r\n 'scrollLeft'\r\n ],\r\n left: [\r\n 'scrollLeft',\r\n 'pageXOffset',\r\n 'scrollTop'\r\n ]\r\n }[direction];\r\n\r\n const isValueDefined = typeof value !== 'undefined';\r\n if (isWindow(elem)) {\r\n if (isValueDefined) {\r\n return elem.scrollTo(self[preserve].call(self), value);\r\n }\r\n return (prop in elem) ? elem[prop] : elem.document.documentElement[method];\r\n } else {\r\n if (isValueDefined) {\r\n elem[method] = value;\r\n }\r\n return elem[method];\r\n }\r\n }\r\n\r\n if (window.getComputedStyle) {\r\n getStyle = (elem) => window.getComputedStyle(elem, null);\r\n convertToPx = (elem, value) => parseFloat(value);\r\n } else {\r\n getStyle = (elem) => elem.currentStyle;\r\n convertToPx = (elem, value) => {\r\n let left, result, rs, rsLeft, style;\r\n let core_pnum = /[+-]?(?:\\d*\\.|)\\d+(?:[eE][+-]?\\d+|)/.source;\r\n let rnumnonpx = new RegExp('^(' + core_pnum + ')(?!px)[a-z%]+$', 'i');\r\n\r\n if (!rnumnonpx.test(value)) {\r\n return parseFloat(value);\r\n }\r\n\r\n // ported from JQuery\r\n style = elem.style;\r\n left = style.left;\r\n rs = elem.runtimeStyle;\r\n rsLeft = rs && rs.left;\r\n if (rs) {\r\n rs.left = style.left;\r\n }\r\n // put in the new values to get a computed style out\r\n style.left = value;\r\n result = style.pixelLeft;\r\n style.left = left;\r\n if (rsLeft) {\r\n rs.left = rsLeft;\r\n }\r\n return result;\r\n };\r\n }\r\n\r\n function getMeasurements(elem, measure) {\r\n let base, borderA, borderB, computedMarginA, computedMarginB, computedStyle, dirA, dirB, marginA, marginB, paddingA, paddingB;\r\n\r\n if (isWindow(elem)) {\r\n base = document.documentElement[{height: 'clientHeight', width: 'clientWidth'}[measure]];\r\n\r\n return {\r\n base: base,\r\n padding: 0,\r\n border: 0,\r\n margin: 0\r\n };\r\n }\r\n\r\n // Start with offset property\r\n [\r\n base,\r\n dirA,\r\n dirB\r\n ] = {\r\n width: [\r\n elem.offsetWidth,\r\n 'Left',\r\n 'Right'\r\n ],\r\n height: [\r\n elem.offsetHeight,\r\n 'Top',\r\n 'Bottom'\r\n ]\r\n }[measure];\r\n\r\n computedStyle = getStyle(elem);\r\n paddingA = convertToPx(elem, computedStyle['padding' + dirA]) || 0;\r\n paddingB = convertToPx(elem, computedStyle['padding' + dirB]) || 0;\r\n borderA = convertToPx(elem, computedStyle['border' + dirA + 'Width']) || 0;\r\n borderB = convertToPx(elem, computedStyle['border' + dirB + 'Width']) || 0;\r\n computedMarginA = computedStyle['margin' + dirA];\r\n computedMarginB = computedStyle['margin' + dirB];\r\n\r\n // I do not care for width for now, so this hack is irrelevant\r\n // if ( !supportsPercentMargin )\r\n // computedMarginA = hackPercentMargin( elem, computedStyle, computedMarginA )\r\n // computedMarginB = hackPercentMargin( elem, computedStyle, computedMarginB )\r\n marginA = convertToPx(elem, computedMarginA) || 0;\r\n marginB = convertToPx(elem, computedMarginB) || 0;\r\n\r\n return {\r\n base: base,\r\n padding: paddingA + paddingB,\r\n border: borderA + borderB,\r\n margin: marginA + marginB\r\n };\r\n }\r\n\r\n function getWidthHeight(elem, direction, measure) {\r\n let computedStyle, result;\r\n\r\n let measurements = getMeasurements(elem, direction);\r\n\r\n if (measurements.base > 0) {\r\n return {\r\n base: measurements.base - measurements.padding - measurements.border,\r\n outer: measurements.base,\r\n outerfull: measurements.base + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // Fall back to computed then uncomputed css if necessary\r\n computedStyle = getStyle(elem);\r\n result = computedStyle[direction];\r\n\r\n if (result < 0 || result === null) {\r\n result = elem.style[direction] || 0;\r\n }\r\n\r\n // Normalize \"\", auto, and prepare for extra\r\n result = parseFloat(result) || 0;\r\n\r\n return {\r\n base: result - measurements.padding - measurements.border,\r\n outer: result,\r\n outerfull: result + measurements.padding + measurements.border + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // define missing methods\r\n return angular.forEach({\r\n before(newElem) {\r\n var children, elem, i, j, parent, ref, self;\r\n self = this;\r\n elem = self[0];\r\n parent = self.parent();\r\n children = parent.contents();\r\n if (children[0] === elem) {\r\n return parent.prepend(newElem);\r\n } else {\r\n for (i = j = 1, ref = children.length - 1; 1 <= ref ? j <= ref : j >= ref; i = 1 <= ref ? ++j : --j) {\r\n if (children[i] === elem) {\r\n angular.element(children[i - 1]).after(newElem);\r\n return;\r\n }\r\n }\r\n throw new Error('invalid DOM structure ' + elem.outerHTML);\r\n }\r\n },\r\n height (value){\r\n var self;\r\n self = this;\r\n if (typeof value !== 'undefined') {\r\n if (Number.isInteger(value)) {\r\n value = value + 'px';\r\n }\r\n return css.call(self, 'height', value);\r\n } else {\r\n return getWidthHeight(this[0], 'height', 'base');\r\n }\r\n },\r\n outerHeight(option) {\r\n return getWidthHeight(this[0], 'height', option ? 'outerfull' : 'outer');\r\n },\r\n outerWidth(option) {\r\n return getWidthHeight(this[0], 'width', option ? 'outerfull' : 'outer');\r\n },\r\n\r\n /*\r\n The offset setter method is not implemented\r\n */\r\n offset(value) {\r\n let docElem, win;\r\n let self = this;\r\n let box = {\r\n top: 0,\r\n left: 0\r\n };\r\n let elem = self[0];\r\n let doc = elem && elem.ownerDocument;\r\n\r\n if (arguments.length) {\r\n if (value === undefined) {\r\n return self;\r\n }\r\n // TODO: implement setter\r\n throw new Error('offset setter method is not implemented');\r\n }\r\n\r\n if (!doc) {\r\n return;\r\n }\r\n\r\n docElem = doc.documentElement;\r\n\r\n // TODO: Make sure it's not a disconnected DOM node\r\n\r\n if (elem.getBoundingClientRect != null) {\r\n box = elem.getBoundingClientRect();\r\n }\r\n\r\n win = doc.defaultView || doc.parentWindow;\r\n\r\n return {\r\n top: box.top + (win.pageYOffset || docElem.scrollTop) - (docElem.clientTop || 0),\r\n left: box.left + (win.pageXOffset || docElem.scrollLeft) - (docElem.clientLeft || 0)\r\n };\r\n },\r\n scrollTop(value) {\r\n return scrollTo(this, 'top', value);\r\n },\r\n scrollLeft(value) {\r\n return scrollTo(this, 'left', value);\r\n }\r\n }, (value, key) => {\r\n if (!element.prototype[key]) {\r\n return element.prototype[key] = value;\r\n }\r\n });\r\n }\r\n\r\n}\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/modules/jqLiteExtras.js","const hideClassToken = 'ng-ui-scroll-hide';\r\n\r\nexport default class ElementRoutines {\r\n\r\n static addCSSRules() {\r\n const selector = '.' + hideClassToken;\r\n const rules = 'display: none';\r\n const sheet = document.styleSheets[0];\r\n let index;\r\n try {\r\n index = sheet.cssRules.length;\r\n } catch (err) {\r\n index = 0;\r\n }\r\n if('insertRule' in sheet) {\r\n sheet.insertRule(selector + '{' + rules + '}', index);\r\n }\r\n else if('addRule' in sheet) {\r\n sheet.addRule(selector, rules, index);\r\n }\r\n }\r\n\r\n constructor($injector, $q) {\r\n this.$animate = ($injector.has && $injector.has('$animate')) ? $injector.get('$animate') : null;\r\n this.isAngularVersionLessThen1_3 = angular.version.major === 1 && angular.version.minor < 3;\r\n this.$q = $q;\r\n }\r\n\r\n hideElement(wrapper) {\r\n wrapper.element.addClass(hideClassToken);\r\n }\r\n\r\n showElement(wrapper) {\r\n wrapper.element.removeClass(hideClassToken);\r\n }\r\n\r\n insertElement(newElement, previousElement) {\r\n previousElement.after(newElement);\r\n return [];\r\n }\r\n\r\n removeElement(wrapper) {\r\n wrapper.element.remove();\r\n wrapper.scope.$destroy();\r\n return [];\r\n }\r\n\r\n insertElementAnimated(newElement, previousElement) {\r\n if (!this.$animate) {\r\n return this.insertElement(newElement, previousElement);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n // no need for parent - previous element is never null\r\n this.$animate.enter(newElement, null, previousElement, () => deferred.resolve());\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n // no need for parent - previous element is never null\r\n return [this.$animate.enter(newElement, null, previousElement)];\r\n }\r\n\r\n removeElementAnimated(wrapper) {\r\n if (!this.$animate) {\r\n return this.removeElement(wrapper);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n this.$animate.leave(wrapper.element, () => {\r\n wrapper.scope.$destroy();\r\n return deferred.resolve();\r\n });\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n return [(this.$animate.leave(wrapper.element)).then(() => wrapper.scope.$destroy())];\r\n }\r\n}\n\n\n// WEBPACK FOOTER //\n// ./src/modules/elementRoutines.js","export default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {\r\n const buffer = Object.create(Array.prototype);\r\n\r\n Object.assign(buffer, {\r\n size: bufferSize,\r\n\r\n reset(startIndex) {\r\n buffer.remove(0, buffer.length);\r\n buffer.eof = false;\r\n buffer.bof = false;\r\n buffer.first = startIndex;\r\n buffer.next = startIndex;\r\n buffer.minIndex = startIndex;\r\n buffer.maxIndex = startIndex;\r\n buffer.minIndexUser = null;\r\n buffer.maxIndexUser = null;\r\n },\r\n\r\n append(items) {\r\n items.forEach((item) => {\r\n ++buffer.next;\r\n buffer.insert('append', item);\r\n });\r\n buffer.maxIndex = buffer.eof ? buffer.next - 1 : Math.max(buffer.next - 1, buffer.maxIndex);\r\n },\r\n\r\n prepend(items) {\r\n items.reverse().forEach((item) => {\r\n --buffer.first;\r\n buffer.insert('prepend', item);\r\n });\r\n buffer.minIndex = buffer.bof ? buffer.minIndex = buffer.first : Math.min(buffer.first, buffer.minIndex);\r\n },\r\n\r\n /**\r\n * inserts wrapped element in the buffer\r\n * the first argument is either operation keyword (see below) or a number for operation 'insert'\r\n * for insert the number is the index for the buffer element the new one have to be inserted after\r\n * operations: 'append', 'prepend', 'insert', 'remove', 'update', 'none'\r\n */\r\n insert(operation, item, isTop) {\r\n const wrapper = {\r\n item: item\r\n };\r\n\r\n if (operation % 1 === 0) {// it is an insert\r\n wrapper.op = 'insert';\r\n buffer.splice(operation, 0, wrapper);\r\n if(isTop) {\r\n buffer.first--;\r\n }\r\n else {\r\n buffer.next++;\r\n }\r\n } else {\r\n wrapper.op = operation;\r\n switch (operation) {\r\n case 'append':\r\n buffer.push(wrapper);\r\n break;\r\n case 'prepend':\r\n buffer.unshift(wrapper);\r\n break;\r\n }\r\n }\r\n },\r\n\r\n // removes elements from buffer\r\n remove(arg1, arg2) {\r\n if (Number.isInteger(arg1)) {\r\n // removes items from arg1 (including) through arg2 (excluding)\r\n for (let i = arg1; i < arg2; i++) {\r\n elementRoutines.removeElement(buffer[i]);\r\n }\r\n return buffer.splice(arg1, arg2 - arg1);\r\n }\r\n // removes single item(wrapper) from the buffer\r\n buffer.splice(buffer.indexOf(arg1), 1);\r\n if(arg1._op === 'isTop' && buffer.first === this.getAbsMinIndex()) {\r\n this.incrementMinIndex();\r\n }\r\n else {\r\n this.decrementMaxIndex();\r\n }\r\n if(arg1._op === 'isTop') {\r\n buffer.first++;\r\n }\r\n else {\r\n buffer.next--;\r\n }\r\n if(!buffer.length) {\r\n buffer.first = 1;\r\n buffer.next = 1;\r\n }\r\n\r\n return elementRoutines.removeElementAnimated(arg1);\r\n },\r\n\r\n incrementMinIndex() {\r\n if(buffer.minIndexUser !== null) {\r\n if(buffer.minIndex > buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n return;\r\n }\r\n if(buffer.minIndex === buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n }\r\n }\r\n buffer.minIndex++;\r\n },\r\n\r\n decrementMaxIndex() {\r\n if(buffer.maxIndexUser !== null && buffer.maxIndex <= buffer.maxIndexUser) {\r\n buffer.maxIndexUser--;\r\n }\r\n buffer.maxIndex--;\r\n },\r\n\r\n getAbsMinIndex() {\r\n if(buffer.minIndexUser !== null) {\r\n return Math.min(buffer.minIndexUser, buffer.minIndex);\r\n }\r\n return buffer.minIndex;\r\n },\r\n\r\n getAbsMaxIndex() {\r\n if(buffer.maxIndexUser !== null) {\r\n return Math.max(buffer.maxIndexUser, buffer.maxIndex);\r\n }\r\n return buffer.maxIndex;\r\n },\r\n\r\n effectiveHeight(elements) {\r\n if (!elements.length) {\r\n return 0;\r\n }\r\n let top = Number.MAX_VALUE;\r\n let bottom = Number.NEGATIVE_INFINITY;\r\n elements.forEach((wrapper) => {\r\n if (wrapper.element[0].offsetParent) {\r\n // element style is not display:none\r\n top = Math.min(top, wrapper.element.offset().top);\r\n bottom = Math.max(bottom, wrapper.element.offset().top + wrapper.element.outerHeight(true));\r\n }\r\n });\r\n return Math.max(0, bottom - top);\r\n }\r\n\r\n });\r\n\r\n buffer.reset(startIndex);\r\n\r\n return buffer;\r\n}\n\n\n// WEBPACK FOOTER //\n// ./src/modules/buffer.js","import Padding from './padding';\r\n\r\nexport default function Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding) {\r\n let topPadding = null;\r\n let bottomPadding = null;\r\n const viewport = viewportController && viewportController.viewport ? viewportController.viewport : angular.element(window);\r\n const container = viewportController && viewportController.container ? viewportController.container : undefined;\r\n const scope = viewportController && viewportController.scope ? viewportController.scope : $rootScope;\r\n\r\n viewport.css({\r\n 'overflow-anchor': 'none',\r\n 'overflow-y': 'auto',\r\n 'display': 'block'\r\n });\r\n\r\n function bufferPadding() {\r\n return viewport.outerHeight() * padding; // some extra space to initiate preload\r\n }\r\n\r\n Object.assign(viewport, {\r\n getScope() {\r\n return scope;\r\n },\r\n\r\n createPaddingElements(template) {\r\n topPadding = new Padding(template);\r\n bottomPadding = new Padding(template);\r\n element.before(topPadding.element);\r\n element.after(bottomPadding.element);\r\n topPadding.height(0);\r\n bottomPadding.height(0);\r\n },\r\n\r\n applyContainerStyle() {\r\n if (!container) {\r\n return true;\r\n }\r\n if(container !== viewport) {\r\n viewport.css('height', window.getComputedStyle(container[0]).height);\r\n }\r\n return viewport.height() > 0;\r\n },\r\n\r\n bottomDataPos() {\r\n let scrollHeight = viewport[0].scrollHeight;\r\n scrollHeight = scrollHeight != null ? scrollHeight : viewport[0].document.documentElement.scrollHeight;\r\n return scrollHeight - bottomPadding.height();\r\n },\r\n\r\n topDataPos() {\r\n return topPadding.height();\r\n },\r\n\r\n bottomVisiblePos() {\r\n return viewport.scrollTop() + viewport.outerHeight();\r\n },\r\n\r\n topVisiblePos() {\r\n return viewport.scrollTop();\r\n },\r\n\r\n insertElement(e, sibling) {\r\n return elementRoutines.insertElement(e, sibling || topPadding.element);\r\n },\r\n\r\n insertElementAnimated(e, sibling) {\r\n return elementRoutines.insertElementAnimated(e, sibling || topPadding.element);\r\n },\r\n\r\n shouldLoadBottom() {\r\n return !buffer.eof && viewport.bottomDataPos() < viewport.bottomVisiblePos() + bufferPadding();\r\n },\r\n\r\n clipBottom() {\r\n // clip the invisible items off the bottom\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.bottomDataPos() - viewport.bottomVisiblePos() - bufferPadding();\r\n\r\n for (let i = buffer.length - 1; i >= 0; i--) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n bottomPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n buffer.eof = false;\r\n buffer.remove(buffer.length - overage, buffer.length);\r\n buffer.next -= overage;\r\n viewport.adjustPaddings();\r\n }\r\n },\r\n\r\n shouldLoadTop() {\r\n return !buffer.bof && (viewport.topDataPos() > viewport.topVisiblePos() - bufferPadding());\r\n },\r\n\r\n clipTop() {\r\n // clip the invisible items off the top\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.topVisiblePos() - viewport.topDataPos() - bufferPadding();\r\n\r\n for (let i = 0; i < buffer.length; i++) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n topPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n // we need to adjust top padding element before items are removed from top\r\n // to avoid strange behaviour of scroll bar during remove top items when we are at the very bottom\r\n topPadding.height(topPadding.height() + overageHeight);\r\n buffer.bof = false;\r\n buffer.remove(0, overage);\r\n buffer.first += overage;\r\n }\r\n },\r\n\r\n adjustPaddings() {\r\n if (!buffer.length) {\r\n return;\r\n }\r\n\r\n // precise heights calculation based on items that are in buffer or that were in buffer once\r\n const visibleItemsHeight = buffer.reduce((summ, item) => summ + item.element.outerHeight(true), 0);\r\n\r\n let topPaddingHeight = 0, topCount = 0;\r\n topPadding.cache.forEach(item => {\r\n if(item.index < buffer.first) {\r\n topPaddingHeight += item.height;\r\n topCount++;\r\n }\r\n });\r\n\r\n let bottomPaddingHeight = 0, bottomCount = 0;\r\n bottomPadding.cache.forEach(item => {\r\n if(item.index >= buffer.next) {\r\n bottomPaddingHeight += item.height;\r\n bottomCount++;\r\n }\r\n });\r\n\r\n const totalHeight = visibleItemsHeight + topPaddingHeight + bottomPaddingHeight;\r\n const averageItemHeight = totalHeight / (topCount + bottomCount + buffer.length);\r\n\r\n // average heights calculation, items that have never been reached\r\n let adjustTopPadding = buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser;\r\n let adjustBottomPadding = buffer.maxIndexUser !== null && buffer.maxIndex < buffer.maxIndexUser;\r\n let topPaddingHeightAdd = adjustTopPadding ? (buffer.minIndex - buffer.minIndexUser) * averageItemHeight : 0;\r\n let bottomPaddingHeightAdd = adjustBottomPadding ? (buffer.maxIndexUser - buffer.maxIndex) * averageItemHeight : 0;\r\n\r\n // paddings combine adjustment\r\n topPadding.height(topPaddingHeight + topPaddingHeightAdd);\r\n bottomPadding.height(bottomPaddingHeight + bottomPaddingHeightAdd);\r\n },\r\n\r\n onAfterMinIndexSet(topPaddingHeightOld) {\r\n // additional scrollTop adjustment in case of datasource.minIndex external set\r\n if (buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser) {\r\n let diff = topPadding.height() - topPaddingHeightOld;\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n while((diff -= viewport.scrollTop()) > 0) {\r\n bottomPadding.height(bottomPadding.height() + diff);\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n }\r\n }\r\n },\r\n\r\n onAfterPrepend(updates) {\r\n if (!updates.prepended.length)\r\n return;\r\n const height = buffer.effectiveHeight(updates.prepended);\r\n const paddingHeight = topPadding.height() - height;\r\n if (paddingHeight >= 0) {\r\n topPadding.height(paddingHeight);\r\n }\r\n else {\r\n topPadding.height(0);\r\n viewport.scrollTop(viewport.scrollTop() - paddingHeight);\r\n }\r\n },\r\n\r\n resetTopPadding() {\r\n topPadding.height(0);\r\n topPadding.cache.clear();\r\n },\r\n\r\n resetBottomPadding() {\r\n bottomPadding.height(0);\r\n bottomPadding.cache.clear();\r\n },\r\n\r\n removeCacheItem(item, isTop) {\r\n topPadding.cache.remove(item, isTop);\r\n bottomPadding.cache.remove(item, isTop);\r\n },\r\n\r\n removeItem(item) {\r\n this.removeCacheItem(item);\r\n return buffer.remove(item);\r\n }\r\n });\r\n\r\n return viewport;\r\n}\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/modules/viewport.js","// Can't just extend the Array, due to Babel does not support built-in classes extending\r\n// This solution was taken from https://stackoverflow.com/questions/46897414/es6-class-extends-array-workaround-for-es5-babel-transpile\r\nclass CacheProto {\r\n add(item) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === item.scope.$index) {\r\n this[i].height = item.element.outerHeight();\r\n return;\r\n }\r\n }\r\n this.push({\r\n index: item.scope.$index,\r\n height: item.element.outerHeight()\r\n });\r\n this.sort((a, b) => ((a.index < b.index) ? -1 : ((a.index > b.index) ? 1 : 0)));\r\n }\r\n\r\n remove(argument, _isTop) {\r\n const index = argument % 1 === 0 ? argument : argument.scope.$index;\r\n const isTop = argument % 1 === 0 ? _isTop : argument._op === 'isTop';\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === index) {\r\n this.splice(i, 1);\r\n break;\r\n }\r\n }\r\n if(!isTop) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index > index) {\r\n this[i].index--;\r\n }\r\n }\r\n }\r\n }\r\n\r\n clear() {\r\n this.length = 0;\r\n }\r\n}\r\n\r\nfunction Cache() {\r\n const instance = [];\r\n instance.push.apply(instance, arguments);\r\n Object.setPrototypeOf(instance, Cache.prototype);\r\n return instance;\r\n}\r\nCache.prototype = Object.create(Array.prototype);\r\nObject.getOwnPropertyNames(CacheProto.prototype).forEach(methodName =>\r\n Cache.prototype[methodName] = CacheProto.prototype[methodName]\r\n);\r\n\r\nfunction generateElement(template) {\r\n if(template.nodeType !== Node.ELEMENT_NODE) {\r\n throw new Error('ui-scroll directive requires an Element node for templating the view');\r\n }\r\n let element;\r\n switch (template.tagName.toLowerCase()) {\r\n case 'dl':\r\n throw new Error(`ui-scroll directive does not support <${template.tagName}> as a repeating tag: ${template.outerHTML}`);\r\n case 'tr':\r\n let table = angular.element('
    ');\r\n element = table.find('tr');\r\n break;\r\n case 'li':\r\n element = angular.element('
  • ');\r\n break;\r\n default:\r\n element = angular.element('
    ');\r\n }\r\n return element;\r\n}\r\n\r\nclass Padding {\r\n constructor(template) {\r\n this.element = generateElement(template);\r\n this.cache = new Cache();\r\n }\r\n\r\n height() {\r\n return this.element.height.apply(this.element, arguments);\r\n }\r\n}\r\n\r\nexport default Padding;\n\n\n// WEBPACK FOOTER //\n// ./src/modules/padding.js","class Adapter {\r\n\r\n constructor($scope, $parse, $attr, viewport, buffer, doAdjust, reload) {\r\n this.$parse = $parse;\r\n this.$attr = $attr;\r\n this.viewport = viewport;\r\n this.buffer = buffer;\r\n\r\n this.doAdjust = doAdjust;\r\n this.reload = reload;\r\n\r\n this.isLoading = false;\r\n this.disabled = false;\r\n\r\n const viewportScope = viewport.getScope();\r\n this.startScope = viewportScope.$parent ? viewportScope : $scope;\r\n\r\n this.publicContext = {};\r\n this.assignAdapter($attr.adapter);\r\n this.generatePublicContext();\r\n }\r\n\r\n assignAdapter(adapterAttr) {\r\n if (!adapterAttr || !(adapterAttr = adapterAttr.replace(/^\\s+|\\s+$/gm, ''))) {\r\n return;\r\n }\r\n let adapterOnScope;\r\n\r\n try {\r\n this.$parse(adapterAttr).assign(this.startScope, {});\r\n adapterOnScope = this.$parse(adapterAttr)(this.startScope);\r\n }\r\n catch (error) {\r\n error.message = `Angular ui-scroll Adapter assignment exception.\\n` +\r\n `Can't parse \"${adapterAttr}\" expression.\\n` +\r\n error.message;\r\n throw error;\r\n }\r\n\r\n Object.assign(adapterOnScope, this.publicContext);\r\n this.publicContext = adapterOnScope;\r\n }\r\n\r\n generatePublicContext() {\r\n // these methods will be accessible out of ui-scroll via user defined adapter\r\n const publicMethods = ['reload', 'applyUpdates', 'append', 'prepend', 'isBOF', 'isEOF', 'isEmpty'];\r\n for (let i = publicMethods.length - 1; i >= 0; i--) {\r\n this.publicContext[publicMethods[i]] = this[publicMethods[i]].bind(this);\r\n }\r\n\r\n // these read-only props will be accessible out of ui-scroll via user defined adapter\r\n const publicProps = ['isLoading', 'topVisible', 'topVisibleElement', 'topVisibleScope', 'bottomVisible', 'bottomVisibleElement', 'bottomVisibleScope'];\r\n for (let i = publicProps.length - 1; i >= 0; i--) {\r\n let property, attr = this.$attr[publicProps[i]];\r\n Object.defineProperty(this, publicProps[i], {\r\n get: () => property,\r\n set: (value) => {\r\n property = value;\r\n this.publicContext[publicProps[i]] = value;\r\n if (attr) {\r\n this.$parse(attr).assign(this.startScope, value);\r\n }\r\n }\r\n });\r\n }\r\n\r\n // non-read-only public property\r\n Object.defineProperty(this.publicContext, 'disabled', {\r\n get: () => this.disabled,\r\n set: (value) => (!(this.disabled = value)) ? this.doAdjust() : null\r\n });\r\n }\r\n\r\n loading(value) {\r\n this.isLoading = value;\r\n }\r\n\r\n isBOF() {\r\n return this.buffer.bof;\r\n }\r\n\r\n isEOF() {\r\n return this.buffer.eof;\r\n }\r\n\r\n isEmpty() {\r\n return !this.buffer.length;\r\n }\r\n\r\n append(newItems) {\r\n this.buffer.append(newItems);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n prepend(newItems) {\r\n this.buffer.prepend(newItems);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n applyUpdates(arg1, arg2) {\r\n if (typeof arg1 === 'function') {\r\n this.applyUpdatesFunc(arg1);\r\n } else {\r\n this.applyUpdatesIndex(arg1, arg2);\r\n }\r\n this.doAdjust();\r\n }\r\n\r\n applyUpdatesFunc(cb) {\r\n this.buffer.slice(0).forEach((wrapper) => {\r\n // we need to do it on the buffer clone, because buffer content\r\n // may change as we iterate through\r\n this.applyUpdate(wrapper, cb(wrapper.item, wrapper.scope, wrapper.element));\r\n });\r\n }\r\n\r\n applyUpdatesIndex(index, newItems) {\r\n if (index % 1 !== 0) {\r\n throw new Error('applyUpdates - ' + index + ' is not a valid index (should be an integer)');\r\n }\r\n const _index = index - this.buffer.first;\r\n\r\n // apply updates only within buffer\r\n if (_index >= 0 && _index < this.buffer.length) {\r\n this.applyUpdate(this.buffer[_index], newItems);\r\n }\r\n // out-of-buffer case: deletion may affect Paddings\r\n else if(index >= this.buffer.getAbsMinIndex() && index <= this.buffer.getAbsMaxIndex()) {\r\n if(Array.isArray(newItems) && !newItems.length) {\r\n this.viewport.removeCacheItem(index, index === this.buffer.minIndex);\r\n if(index === this.buffer.getAbsMinIndex()) {\r\n this.buffer.incrementMinIndex();\r\n }\r\n else {\r\n this.buffer.decrementMaxIndex();\r\n }\r\n }\r\n }\r\n }\r\n\r\n applyUpdate(wrapper, newItems) {\r\n if (!Array.isArray(newItems)) {\r\n return;\r\n }\r\n let position = this.buffer.indexOf(wrapper);\r\n if (!newItems.reverse().some(newItem => newItem === wrapper.item)) {\r\n wrapper.op = 'remove';\r\n if(position === 0 && !newItems.length) {\r\n wrapper._op = 'isTop'; // to catch \"first\" edge case on remove\r\n }\r\n }\r\n newItems.forEach((newItem) => {\r\n if (newItem === wrapper.item) {\r\n position--;\r\n } else {\r\n // 3 parameter (isTop) is to catch \"first\" edge case on insert\r\n this.buffer.insert(position + 1, newItem, position === -1);\r\n }\r\n });\r\n }\r\n\r\n calculateProperties() {\r\n let rowTop = null, topHeight = 0;\r\n let topDone = false, bottomDone = false;\r\n const length = this.buffer.length;\r\n\r\n for (let i = 0; i < length; i++) {\r\n const item = this.buffer[i];\r\n const itemTop = item.element.offset().top;\r\n\r\n if (rowTop !== itemTop) { // a new row condition\r\n const itemHeight = item.element.outerHeight(true);\r\n const top = this.viewport.topDataPos() + topHeight + itemHeight;\r\n\r\n if (!topDone && top > this.viewport.topVisiblePos()) {\r\n topDone = true;\r\n this['topVisible'] = item.item;\r\n this['topVisibleElement'] = item.element;\r\n this['topVisibleScope'] = item.scope;\r\n }\r\n if (!bottomDone && (top >= this.viewport.bottomVisiblePos() || (i === length - 1 && this.isEOF()))) {\r\n bottomDone = 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(!isDatasourceValid()) {\n datasource = $injector.get(datasourceName); // try to inject datasource as service\n if (!isDatasourceValid()) {\n throw new Error(datasourceName + ' is not a valid datasource');\n }\n }\n\n var onRenderHandlers = [];\n function onRenderHandlersRunner() {\n onRenderHandlers.forEach(function (handler) {\n return handler.run();\n });\n onRenderHandlers = [];\n }\n function persistDatasourceIndex(datasource, propName) {\n var getter = void 0;\n // need to postpone min/maxIndexUser processing if the view is empty\n if (Number.isInteger(datasource[propName])) {\n getter = datasource[propName];\n if (Number.isInteger(getter)) {\n onRenderHandlers = onRenderHandlers.filter(function (handler) {\n return handler.id !== propName;\n });\n onRenderHandlers.push({\n id: propName,\n run: function run() {\n return datasource[propName] = getter;\n }\n });\n }\n }\n }\n\n function defineDatasourceIndex(datasource, propName, propUserName) {\n var descriptor = Object.getOwnPropertyDescriptor(datasource, propName);\n if (descriptor && (descriptor.set || descriptor.get)) {\n return;\n }\n var getter = void 0;\n persistDatasourceIndex(datasource, propName);\n Object.defineProperty(datasource, propName, {\n set: function set(value) {\n getter = value;\n if (pending.length && !buffer.length) {\n persistDatasourceIndex(datasource, propName);\n return;\n }\n buffer[propUserName] = value;\n var topPaddingHeightOld = viewport.topDataPos();\n viewport.adjustPaddings();\n if (propName === 'minIndex') {\n viewport.onAfterMinIndexSet(topPaddingHeightOld);\n }\n },\n get: function get() {\n return getter;\n }\n });\n }\n\n defineDatasourceIndex(datasource, 'minIndex', 'minIndexUser');\n defineDatasourceIndex(datasource, 'maxIndex', 'maxIndexUser');\n\n var fetchNext = datasource.get.length !== 2 ? function (success) {\n return datasource.get(buffer.next, bufferSize, success);\n } : function (success) {\n datasource.get({\n index: buffer.next,\n append: buffer.length ? buffer[buffer.length - 1].item : void 0,\n count: bufferSize\n }, success);\n };\n\n var fetchPrevious = datasource.get.length !== 2 ? function (success) {\n return datasource.get(buffer.first - bufferSize, bufferSize, success);\n } : function (success) {\n datasource.get({\n index: buffer.first - bufferSize,\n prepend: buffer.length ? buffer[0].item : void 0,\n count: bufferSize\n }, success);\n };\n\n var initialize = function initialize() {\n var tryCount = 0;\n if (!viewport.applyContainerStyle()) {\n var timer = $interval(function () {\n tryCount++;\n if (viewport.applyContainerStyle()) {\n $interval.cancel(timer);\n doAdjust();\n }\n if (tryCount * VIEWPORT_POLLING_INTERVAL >= MAX_VIEWPORT_DELAY) {\n $interval.cancel(timer);\n throw Error('ui-scroll directive requires a viewport with non-zero height in ' + MAX_VIEWPORT_DELAY + 'ms');\n }\n }, VIEWPORT_POLLING_INTERVAL);\n } else {\n doAdjust();\n }\n };\n\n /**\r\n * Build padding elements\r\n *\r\n * Calling linker is the only way I found to get access to the tag name of the template\r\n * to prevent the directive scope from pollution a new scope is created and destroyed\r\n * right after the builder creation is completed\r\n */\n linker(function (clone, scope) {\n viewport.createPaddingElements(clone[0]);\n // we do not include the clone in the DOM. It means that the nested directives will not\n // be able to reach the parent directives, but in this case it is intentional because we\n // created the clone to access the template tag name\n scope.$destroy();\n clone.remove();\n });\n\n $scope.$on('$destroy', function () {\n unbindEvents();\n viewport.unbind('mousewheel', wheelHandler);\n });\n\n viewport.bind('mousewheel', wheelHandler);\n\n initialize();\n\n /* Private function definitions */\n\n function isInvalid(rid) {\n return rid && rid !== ridActual || $scope.$$destroyed;\n }\n\n function bindEvents() {\n viewport.bind('resize', resizeAndScrollHandler);\n viewport.bind('scroll', resizeAndScrollHandler);\n }\n\n function unbindEvents() {\n viewport.unbind('resize', resizeAndScrollHandler);\n viewport.unbind('scroll', resizeAndScrollHandler);\n }\n\n function reload() {\n viewport.resetTopPadding();\n viewport.resetBottomPadding();\n if (arguments.length) {\n startIndex = arguments[0];\n }\n buffer.reset(startIndex);\n persistDatasourceIndex(datasource, 'minIndex');\n persistDatasourceIndex(datasource, 'maxIndex');\n doAdjust();\n }\n\n function isElementVisible(wrapper) {\n return wrapper.element.height() && wrapper.element[0].offsetParent;\n }\n\n function visibilityWatcher(wrapper) {\n if (isElementVisible(wrapper)) {\n buffer.forEach(function (item) {\n if (typeof item.unregisterVisibilityWatcher === 'function') {\n item.unregisterVisibilityWatcher();\n delete item.unregisterVisibilityWatcher;\n }\n });\n if (!pending.length) {\n $timeout(function () {\n return doAdjust();\n });\n }\n }\n }\n\n function insertWrapperContent(wrapper, insertAfter) {\n createElement(wrapper, insertAfter, viewport.insertElement);\n if (!isElementVisible(wrapper)) {\n wrapper.unregisterVisibilityWatcher = wrapper.scope.$watch(function () {\n return visibilityWatcher(wrapper);\n });\n }\n elementRoutines.hideElement(wrapper); // hide inserted elements before data binding\n }\n\n function createElement(wrapper, insertAfter, insertElement) {\n var promises = null;\n var sibling = insertAfter > 0 ? buffer[insertAfter - 1].element : undefined;\n linker(function (clone, scope) {\n promises = insertElement(clone, sibling);\n wrapper.element = clone;\n wrapper.scope = scope;\n scope[itemName] = wrapper.item;\n });\n // ui-scroll-grid apply\n if (adapter.transform) {\n var tdInitializer = wrapper.scope.uiScrollTdInitializer;\n if (tdInitializer && tdInitializer.linking) {\n adapter.transform(wrapper.scope, wrapper.element);\n } else {\n wrapper.scope.uiScrollTdInitializer = {\n onLink: function onLink() {\n return adapter.transform(wrapper.scope, wrapper.element);\n },\n scope: wrapper.scope\n };\n }\n }\n return promises;\n }\n\n function updateDOM() {\n var promises = [];\n var toBePrepended = [];\n var toBeRemoved = [];\n var inserted = [];\n\n buffer.forEach(function (wrapper, i) {\n switch (wrapper.op) {\n case 'prepend':\n toBePrepended.unshift(wrapper);\n break;\n case 'append':\n insertWrapperContent(wrapper, i);\n wrapper.op = 'none';\n inserted.push(wrapper);\n break;\n case 'insert':\n promises = promises.concat(createElement(wrapper, i, viewport.insertElementAnimated));\n wrapper.op = 'none';\n inserted.push(wrapper);\n break;\n case 'remove':\n toBeRemoved.push(wrapper);\n }\n });\n\n toBeRemoved.forEach(function (wrapper) {\n return promises = promises.concat(viewport.removeItem(wrapper));\n });\n\n if (toBePrepended.length) toBePrepended.forEach(function (wrapper) {\n insertWrapperContent(wrapper);\n wrapper.op = 'none';\n });\n\n buffer.forEach(function (item, i) {\n return item.scope.$index = buffer.first + i;\n });\n\n return {\n prepended: toBePrepended,\n removed: toBeRemoved,\n inserted: inserted,\n animated: promises\n };\n }\n\n function updatePaddings(rid, updates) {\n // schedule another doAdjust after animation completion\n if (updates.animated.length) {\n $q.all(updates.animated).then(function () {\n viewport.adjustPaddings();\n doAdjust(rid);\n });\n } else {\n viewport.adjustPaddings();\n }\n }\n\n function enqueueFetch(rid, updates) {\n if (viewport.shouldLoadBottom()) {\n if (!updates || buffer.effectiveHeight(updates.inserted) > 0) {\n // this means that at least one item appended in the last batch has height > 0\n if (pending.push(true) === 1) {\n adapter.loading(true);\n fetch(rid);\n }\n }\n } else if (viewport.shouldLoadTop()) {\n if (!updates || buffer.effectiveHeight(updates.prepended) > 0 || pending[0]) {\n // this means that at least one item appended in the last batch has height > 0\n // pending[0] = true means that previous fetch was appending. We need to force at least one prepend\n // BTW there will always be at least 1 element in the pending array because bottom is fetched first\n if (pending.push(false) === 1) {\n adapter.loading(true);\n fetch(rid);\n }\n }\n }\n }\n\n function processUpdates() {\n var updates = updateDOM();\n\n // We need the item bindings to be processed before we can do adjustments\n !$scope.$$phase && !$rootScope.$$phase && $scope.$digest();\n\n updates.inserted.forEach(function (w) {\n return elementRoutines.showElement(w);\n });\n updates.prepended.forEach(function (w) {\n return elementRoutines.showElement(w);\n });\n return updates;\n }\n\n function doAdjust(rid) {\n if (!rid) {\n // dismiss pending requests\n pending = [];\n rid = ++ridActual;\n }\n\n var updates = processUpdates();\n\n if (isInvalid(rid)) {\n return;\n }\n\n updatePaddings(rid, updates);\n enqueueFetch(rid);\n\n if (!pending.length) {\n adapter.calculateProperties();\n }\n }\n\n function doAdjustAfterFetch(rid) {\n var updates = processUpdates();\n\n viewport.onAfterPrepend(updates);\n\n if (isInvalid(rid)) {\n return;\n }\n\n updatePaddings(rid, updates);\n onRenderHandlersRunner();\n enqueueFetch(rid, updates);\n pending.shift();\n\n if (pending.length) fetch(rid);else {\n adapter.loading(false);\n bindEvents();\n adapter.calculateProperties();\n }\n }\n\n function fetch(rid) {\n if (pending[0]) {\n // scrolling down\n if (buffer.length && !viewport.shouldLoadBottom()) {\n doAdjustAfterFetch(rid);\n } else {\n fetchNext(function (result) {\n if (isInvalid(rid)) {\n return;\n }\n\n if (result.length < bufferSize) {\n buffer.eof = true;\n }\n\n if (result.length > 0) {\n viewport.clipTop();\n buffer.append(result);\n }\n\n doAdjustAfterFetch(rid);\n });\n }\n } else {\n // scrolling up\n if (buffer.length && !viewport.shouldLoadTop()) {\n doAdjustAfterFetch(rid);\n } else {\n fetchPrevious(function (result) {\n if (isInvalid(rid)) {\n return;\n }\n\n if (result.length < bufferSize) {\n buffer.bof = true;\n // log 'bof is reached'\n }\n\n if (result.length > 0) {\n if (buffer.length) {\n viewport.clipBottom();\n }\n buffer.prepend(result);\n }\n\n doAdjustAfterFetch(rid);\n });\n }\n }\n }\n\n function resizeAndScrollHandler() {\n if (!$rootScope.$$phase && !adapter.isLoading && !adapter.disabled) {\n\n enqueueFetch(ridActual);\n\n if (pending.length) {\n unbindEvents();\n } else {\n adapter.calculateProperties();\n !$scope.$$phase && $scope.$digest();\n }\n }\n }\n\n function wheelHandler(event) {\n if (!adapter.disabled) {\n var scrollTop = viewport[0].scrollTop;\n var yMax = viewport[0].scrollHeight - viewport[0].clientHeight;\n\n if (scrollTop === 0 && !buffer.bof || scrollTop === yMax && !buffer.eof) {\n event.preventDefault();\n }\n }\n }\n }\n}]);\n\n/***/ }),\n/* 1 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\n\nvar _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"]) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError(\"Invalid attempt to destructure non-iterable instance\"); } }; }();\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\n/*!\r\n globals: angular, window\r\n List of used element methods available in JQuery but not in JQuery Lite\r\n element.before(elem)\r\n element.height()\r\n element.outerHeight(true)\r\n element.height(value) = only for Top/Bottom padding elements\r\n element.scrollTop()\r\n element.scrollTop(value)\r\n */\n\nvar JQLiteExtras = function () {\n function JQLiteExtras() {\n _classCallCheck(this, JQLiteExtras);\n }\n\n _createClass(JQLiteExtras, [{\n key: 'registerFor',\n value: function registerFor(element) {\n var convertToPx = void 0,\n css = void 0,\n getStyle = void 0,\n isWindow = void 0;\n // angular implementation blows up if elem is the window\n css = angular.element.prototype.css;\n\n element.prototype.css = function (name, value) {\n var self = this;\n var elem = self[0];\n if (!(!elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style)) {\n return css.call(self, name, value);\n }\n };\n\n // as defined in angularjs v1.0.5\n isWindow = function isWindow(obj) {\n return obj && obj.document && obj.location && obj.alert && obj.setInterval;\n };\n\n function scrollTo(self, direction, value) {\n var elem = self[0];\n\n var _top$left$direction = _slicedToArray({\n top: ['scrollTop', 'pageYOffset', 'scrollLeft'],\n left: ['scrollLeft', 'pageXOffset', 'scrollTop']\n }[direction], 3),\n method = _top$left$direction[0],\n prop = _top$left$direction[1],\n preserve = _top$left$direction[2];\n\n var isValueDefined = typeof value !== 'undefined';\n if (isWindow(elem)) {\n if (isValueDefined) {\n return elem.scrollTo(self[preserve].call(self), value);\n }\n return prop in elem ? elem[prop] : elem.document.documentElement[method];\n } else {\n if (isValueDefined) {\n elem[method] = value;\n }\n return elem[method];\n }\n }\n\n if (window.getComputedStyle) {\n getStyle = function getStyle(elem) {\n return window.getComputedStyle(elem, null);\n };\n convertToPx = function convertToPx(elem, value) {\n return parseFloat(value);\n };\n } else {\n getStyle = function getStyle(elem) {\n return elem.currentStyle;\n };\n convertToPx = function convertToPx(elem, value) {\n var left = void 0,\n result = void 0,\n rs = void 0,\n rsLeft = void 0,\n style = void 0;\n var core_pnum = /[+-]?(?:\\d*\\.|)\\d+(?:[eE][+-]?\\d+|)/.source;\n var rnumnonpx = new RegExp('^(' + core_pnum + ')(?!px)[a-z%]+$', 'i');\n\n if (!rnumnonpx.test(value)) {\n return parseFloat(value);\n }\n\n // ported from JQuery\n style = elem.style;\n left = style.left;\n rs = elem.runtimeStyle;\n rsLeft = rs && rs.left;\n if (rs) {\n rs.left = style.left;\n }\n // put in the new values to get a computed style out\n style.left = value;\n result = style.pixelLeft;\n style.left = left;\n if (rsLeft) {\n rs.left = rsLeft;\n }\n return result;\n };\n }\n\n function getMeasurements(elem, measure) {\n var base = void 0,\n borderA = void 0,\n borderB = void 0,\n computedMarginA = void 0,\n computedMarginB = void 0,\n computedStyle = void 0,\n dirA = void 0,\n dirB = void 0,\n marginA = void 0,\n marginB = void 0,\n paddingA = void 0,\n paddingB = void 0;\n\n if (isWindow(elem)) {\n base = document.documentElement[{ height: 'clientHeight', width: 'clientWidth' }[measure]];\n\n return {\n base: base,\n padding: 0,\n border: 0,\n margin: 0\n };\n }\n\n // Start with offset property\n\n var _width$height$measure = _slicedToArray({\n width: [elem.offsetWidth, 'Left', 'Right'],\n height: [elem.offsetHeight, 'Top', 'Bottom']\n }[measure], 3);\n\n base = _width$height$measure[0];\n dirA = _width$height$measure[1];\n dirB = _width$height$measure[2];\n\n\n computedStyle = getStyle(elem);\n paddingA = convertToPx(elem, computedStyle['padding' + dirA]) || 0;\n paddingB = convertToPx(elem, computedStyle['padding' + dirB]) || 0;\n borderA = convertToPx(elem, computedStyle['border' + dirA + 'Width']) || 0;\n borderB = convertToPx(elem, computedStyle['border' + dirB + 'Width']) || 0;\n computedMarginA = computedStyle['margin' + dirA];\n computedMarginB = computedStyle['margin' + dirB];\n\n // I do not care for width for now, so this hack is irrelevant\n // if ( !supportsPercentMargin )\n // computedMarginA = hackPercentMargin( elem, computedStyle, computedMarginA )\n // computedMarginB = hackPercentMargin( elem, computedStyle, computedMarginB )\n marginA = convertToPx(elem, computedMarginA) || 0;\n marginB = convertToPx(elem, computedMarginB) || 0;\n\n return {\n base: base,\n padding: paddingA + paddingB,\n border: borderA + borderB,\n margin: marginA + marginB\n };\n }\n\n function getWidthHeight(elem, direction, measure) {\n var computedStyle = void 0,\n result = void 0;\n\n var measurements = getMeasurements(elem, direction);\n\n if (measurements.base > 0) {\n return {\n base: measurements.base - measurements.padding - measurements.border,\n outer: measurements.base,\n outerfull: measurements.base + measurements.margin\n }[measure];\n }\n\n // Fall back to computed then uncomputed css if necessary\n computedStyle = getStyle(elem);\n result = computedStyle[direction];\n\n if (result < 0 || result === null) {\n result = elem.style[direction] || 0;\n }\n\n // Normalize \"\", auto, and prepare for extra\n result = parseFloat(result) || 0;\n\n return {\n base: result - measurements.padding - measurements.border,\n outer: result,\n outerfull: result + measurements.padding + measurements.border + measurements.margin\n }[measure];\n }\n\n // define missing methods\n return angular.forEach({\n before: function before(newElem) {\n var children, elem, i, j, parent, ref, self;\n self = this;\n elem = self[0];\n parent = self.parent();\n children = parent.contents();\n if (children[0] === elem) {\n return parent.prepend(newElem);\n } else {\n for (i = j = 1, ref = children.length - 1; 1 <= ref ? j <= ref : j >= ref; i = 1 <= ref ? ++j : --j) {\n if (children[i] === elem) {\n angular.element(children[i - 1]).after(newElem);\n return;\n }\n }\n throw new Error('invalid DOM structure ' + elem.outerHTML);\n }\n },\n height: function height(value) {\n var self;\n self = this;\n if (typeof value !== 'undefined') {\n if (Number.isInteger(value)) {\n value = value + 'px';\n }\n return css.call(self, 'height', value);\n } else {\n return getWidthHeight(this[0], 'height', 'base');\n }\n },\n outerHeight: function outerHeight(option) {\n return getWidthHeight(this[0], 'height', option ? 'outerfull' : 'outer');\n },\n outerWidth: function outerWidth(option) {\n return getWidthHeight(this[0], 'width', option ? 'outerfull' : 'outer');\n },\n\n\n /*\r\n The offset setter method is not implemented\r\n */\n offset: function offset(value) {\n var docElem = void 0,\n win = void 0;\n var self = this;\n var box = {\n top: 0,\n left: 0\n };\n var elem = self[0];\n var doc = elem && elem.ownerDocument;\n\n if (arguments.length) {\n if (value === undefined) {\n return self;\n }\n // TODO: implement setter\n throw new Error('offset setter method is not implemented');\n }\n\n if (!doc) {\n return;\n }\n\n docElem = doc.documentElement;\n\n // TODO: Make sure it's not a disconnected DOM node\n\n if (elem.getBoundingClientRect != null) {\n box = elem.getBoundingClientRect();\n }\n\n win = doc.defaultView || doc.parentWindow;\n\n return {\n top: box.top + (win.pageYOffset || docElem.scrollTop) - (docElem.clientTop || 0),\n left: box.left + (win.pageXOffset || docElem.scrollLeft) - (docElem.clientLeft || 0)\n };\n },\n scrollTop: function scrollTop(value) {\n return scrollTo(this, 'top', value);\n },\n scrollLeft: function scrollLeft(value) {\n return scrollTo(this, 'left', value);\n }\n }, function (value, key) {\n if (!element.prototype[key]) {\n return element.prototype[key] = value;\n }\n });\n }\n }]);\n\n return JQLiteExtras;\n}();\n\nexports.default = JQLiteExtras;\n\n/***/ }),\n/* 2 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nvar hideClassToken = 'ng-ui-scroll-hide';\n\nfunction addCSSRule(sheet, selector, rules, index) {\n if ('insertRule' in sheet) {\n sheet.insertRule(selector + '{' + rules + '}', index);\n } else if ('addRule' in sheet) {\n sheet.addRule(selector, rules, index);\n }\n}\n\nvar ElementRoutines = function () {\n function ElementRoutines($injector, $q) {\n _classCallCheck(this, ElementRoutines);\n\n this.$animate = $injector.has && $injector.has('$animate') ? $injector.get('$animate') : null;\n this.isAngularVersionLessThen1_3 = angular.version.major === 1 && angular.version.minor < 3;\n this.$q = $q;\n addCSSRule(document.styleSheets[0], '.' + hideClassToken, 'display: none');\n }\n\n _createClass(ElementRoutines, [{\n key: 'hideElement',\n value: function hideElement(wrapper) {\n wrapper.element.addClass(hideClassToken);\n }\n }, {\n key: 'showElement',\n value: function showElement(wrapper) {\n wrapper.element.removeClass(hideClassToken);\n }\n }, {\n key: 'insertElement',\n value: function insertElement(newElement, previousElement) {\n previousElement.after(newElement);\n return [];\n }\n }, {\n key: 'removeElement',\n value: function removeElement(wrapper) {\n wrapper.element.remove();\n wrapper.scope.$destroy();\n return [];\n }\n }, {\n key: 'insertElementAnimated',\n value: function insertElementAnimated(newElement, previousElement) {\n if (!this.$animate) {\n return this.insertElement(newElement, previousElement);\n }\n\n if (this.isAngularVersionLessThen1_3) {\n var deferred = this.$q.defer();\n // no need for parent - previous element is never null\n this.$animate.enter(newElement, null, previousElement, function () {\n return deferred.resolve();\n });\n\n return [deferred.promise];\n }\n\n // no need for parent - previous element is never null\n return [this.$animate.enter(newElement, null, previousElement)];\n }\n }, {\n key: 'removeElementAnimated',\n value: function removeElementAnimated(wrapper) {\n if (!this.$animate) {\n return this.removeElement(wrapper);\n }\n\n if (this.isAngularVersionLessThen1_3) {\n var deferred = this.$q.defer();\n this.$animate.leave(wrapper.element, function () {\n wrapper.scope.$destroy();\n return deferred.resolve();\n });\n\n return [deferred.promise];\n }\n\n return [this.$animate.leave(wrapper.element).then(function () {\n return wrapper.scope.$destroy();\n })];\n }\n }]);\n\n return ElementRoutines;\n}();\n\nexports.default = ElementRoutines;\n\n/***/ }),\n/* 3 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.default = ScrollBuffer;\nfunction ScrollBuffer(elementRoutines, bufferSize, startIndex) {\n var buffer = Object.create(Array.prototype);\n\n Object.assign(buffer, {\n size: bufferSize,\n\n reset: function reset(startIndex) {\n buffer.remove(0, buffer.length);\n buffer.eof = false;\n buffer.bof = false;\n buffer.first = startIndex;\n buffer.next = startIndex;\n buffer.minIndex = startIndex;\n buffer.maxIndex = startIndex;\n buffer.minIndexUser = null;\n buffer.maxIndexUser = null;\n },\n append: function append(items) {\n items.forEach(function (item) {\n ++buffer.next;\n buffer.insert('append', item);\n });\n buffer.maxIndex = buffer.eof ? buffer.next - 1 : Math.max(buffer.next - 1, buffer.maxIndex);\n },\n prepend: function prepend(items) {\n items.reverse().forEach(function (item) {\n --buffer.first;\n buffer.insert('prepend', item);\n });\n buffer.minIndex = buffer.bof ? buffer.minIndex = buffer.first : Math.min(buffer.first, buffer.minIndex);\n },\n\n\n /**\r\n * inserts wrapped element in the buffer\r\n * the first argument is either operation keyword (see below) or a number for operation 'insert'\r\n * for insert the number is the index for the buffer element the new one have to be inserted after\r\n * operations: 'append', 'prepend', 'insert', 'remove', 'update', 'none'\r\n */\n insert: function insert(operation, item, isTop) {\n var wrapper = {\n item: item\n };\n\n if (operation % 1 === 0) {\n // it is an insert\n wrapper.op = 'insert';\n buffer.splice(operation, 0, wrapper);\n if (isTop) {\n buffer.first--;\n } else {\n buffer.next++;\n }\n } else {\n wrapper.op = operation;\n switch (operation) {\n case 'append':\n buffer.push(wrapper);\n break;\n case 'prepend':\n buffer.unshift(wrapper);\n break;\n }\n }\n },\n\n\n // removes elements from buffer\n remove: function remove(arg1, arg2) {\n if (Number.isInteger(arg1)) {\n // removes items from arg1 (including) through arg2 (excluding)\n for (var i = arg1; i < arg2; i++) {\n elementRoutines.removeElement(buffer[i]);\n }\n return buffer.splice(arg1, arg2 - arg1);\n }\n // removes single item(wrapper) from the buffer\n buffer.splice(buffer.indexOf(arg1), 1);\n if (arg1._op === 'isTop' && buffer.first === this.getAbsMinIndex()) {\n this.incrementMinIndex();\n } else {\n this.decrementMaxIndex();\n }\n if (arg1._op === 'isTop') {\n buffer.first++;\n } else {\n buffer.next--;\n }\n if (!buffer.length) {\n buffer.first = 1;\n buffer.next = 1;\n }\n\n return elementRoutines.removeElementAnimated(arg1);\n },\n incrementMinIndex: function incrementMinIndex() {\n if (buffer.minIndexUser !== null) {\n if (buffer.minIndex > buffer.minIndexUser) {\n buffer.minIndexUser++;\n return;\n }\n if (buffer.minIndex === buffer.minIndexUser) {\n buffer.minIndexUser++;\n }\n }\n buffer.minIndex++;\n },\n decrementMaxIndex: function decrementMaxIndex() {\n if (buffer.maxIndexUser !== null && buffer.maxIndex <= buffer.maxIndexUser) {\n buffer.maxIndexUser--;\n }\n buffer.maxIndex--;\n },\n getAbsMinIndex: function getAbsMinIndex() {\n if (buffer.minIndexUser !== null) {\n return Math.min(buffer.minIndexUser, buffer.minIndex);\n }\n return buffer.minIndex;\n },\n getAbsMaxIndex: function getAbsMaxIndex() {\n if (buffer.maxIndexUser !== null) {\n return Math.max(buffer.maxIndexUser, buffer.maxIndex);\n }\n return buffer.maxIndex;\n },\n effectiveHeight: function effectiveHeight(elements) {\n if (!elements.length) {\n return 0;\n }\n var top = Number.MAX_VALUE;\n var bottom = Number.NEGATIVE_INFINITY;\n elements.forEach(function (wrapper) {\n if (wrapper.element[0].offsetParent) {\n // element style is not display:none\n top = Math.min(top, wrapper.element.offset().top);\n bottom = Math.max(bottom, wrapper.element.offset().top + wrapper.element.outerHeight(true));\n }\n });\n return Math.max(0, bottom - top);\n }\n });\n\n buffer.reset(startIndex);\n\n return buffer;\n}\n\n/***/ }),\n/* 4 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.default = Viewport;\n\nvar _padding = __webpack_require__(5);\n\nvar _padding2 = _interopRequireDefault(_padding);\n\nfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }\n\nfunction Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding) {\n var topPadding = null;\n var bottomPadding = null;\n var viewport = viewportController && viewportController.viewport ? viewportController.viewport : angular.element(window);\n var container = viewportController && viewportController.container ? viewportController.container : undefined;\n var scope = viewportController && viewportController.scope ? viewportController.scope : $rootScope;\n\n viewport.css({\n 'overflow-anchor': 'none',\n 'overflow-y': 'auto',\n 'display': 'block'\n });\n\n function bufferPadding() {\n return viewport.outerHeight() * padding; // some extra space to initiate preload\n }\n\n Object.assign(viewport, {\n getScope: function getScope() {\n return scope;\n },\n createPaddingElements: function createPaddingElements(template) {\n topPadding = new _padding2.default(template);\n bottomPadding = new _padding2.default(template);\n element.before(topPadding.element);\n element.after(bottomPadding.element);\n topPadding.height(0);\n bottomPadding.height(0);\n },\n applyContainerStyle: function applyContainerStyle() {\n if (!container) {\n return true;\n }\n if (container !== viewport) {\n viewport.css('height', window.getComputedStyle(container[0]).height);\n }\n return viewport.height() > 0;\n },\n bottomDataPos: function bottomDataPos() {\n var scrollHeight = viewport[0].scrollHeight;\n scrollHeight = scrollHeight != null ? scrollHeight : viewport[0].document.documentElement.scrollHeight;\n return scrollHeight - bottomPadding.height();\n },\n topDataPos: function topDataPos() {\n return topPadding.height();\n },\n bottomVisiblePos: function bottomVisiblePos() {\n return viewport.scrollTop() + viewport.outerHeight();\n },\n topVisiblePos: function topVisiblePos() {\n return viewport.scrollTop();\n },\n insertElement: function insertElement(e, sibling) {\n return elementRoutines.insertElement(e, sibling || topPadding.element);\n },\n insertElementAnimated: function insertElementAnimated(e, sibling) {\n return elementRoutines.insertElementAnimated(e, sibling || topPadding.element);\n },\n shouldLoadBottom: function shouldLoadBottom() {\n return !buffer.eof && viewport.bottomDataPos() < viewport.bottomVisiblePos() + bufferPadding();\n },\n clipBottom: function clipBottom() {\n // clip the invisible items off the bottom\n var overage = 0;\n var overageHeight = 0;\n var itemHeight = 0;\n var emptySpaceHeight = viewport.bottomDataPos() - viewport.bottomVisiblePos() - bufferPadding();\n\n for (var i = buffer.length - 1; i >= 0; i--) {\n itemHeight = buffer[i].element.outerHeight(true);\n if (overageHeight + itemHeight > emptySpaceHeight) {\n break;\n }\n bottomPadding.cache.add(buffer[i]);\n overageHeight += itemHeight;\n overage++;\n }\n\n if (overage > 0) {\n buffer.eof = false;\n buffer.remove(buffer.length - overage, buffer.length);\n buffer.next -= overage;\n viewport.adjustPaddings();\n }\n },\n shouldLoadTop: function shouldLoadTop() {\n return !buffer.bof && viewport.topDataPos() > viewport.topVisiblePos() - bufferPadding();\n },\n clipTop: function clipTop() {\n // clip the invisible items off the top\n var overage = 0;\n var overageHeight = 0;\n var itemHeight = 0;\n var emptySpaceHeight = viewport.topVisiblePos() - viewport.topDataPos() - bufferPadding();\n\n for (var i = 0; i < buffer.length; i++) {\n itemHeight = buffer[i].element.outerHeight(true);\n if (overageHeight + itemHeight > emptySpaceHeight) {\n break;\n }\n topPadding.cache.add(buffer[i]);\n overageHeight += itemHeight;\n overage++;\n }\n\n if (overage > 0) {\n // we need to adjust top padding element before items are removed from top\n // to avoid strange behaviour of scroll bar during remove top items when we are at the very bottom\n topPadding.height(topPadding.height() + overageHeight);\n buffer.bof = false;\n buffer.remove(0, overage);\n buffer.first += overage;\n }\n },\n adjustPaddings: function adjustPaddings() {\n if (!buffer.length) {\n return;\n }\n\n // precise heights calculation based on items that are in buffer or that were in buffer once\n var visibleItemsHeight = buffer.reduce(function (summ, item) {\n return summ + item.element.outerHeight(true);\n }, 0);\n\n var topPaddingHeight = 0,\n topCount = 0;\n topPadding.cache.forEach(function (item) {\n if (item.index < buffer.first) {\n topPaddingHeight += item.height;\n topCount++;\n }\n });\n\n var bottomPaddingHeight = 0,\n bottomCount = 0;\n bottomPadding.cache.forEach(function (item) {\n if (item.index >= buffer.next) {\n bottomPaddingHeight += item.height;\n bottomCount++;\n }\n });\n\n var totalHeight = visibleItemsHeight + topPaddingHeight + bottomPaddingHeight;\n var averageItemHeight = totalHeight / (topCount + bottomCount + buffer.length);\n\n // average heights calculation, items that have never been reached\n var adjustTopPadding = buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser;\n var adjustBottomPadding = buffer.maxIndexUser !== null && buffer.maxIndex < buffer.maxIndexUser;\n var topPaddingHeightAdd = adjustTopPadding ? (buffer.minIndex - buffer.minIndexUser) * averageItemHeight : 0;\n var bottomPaddingHeightAdd = adjustBottomPadding ? (buffer.maxIndexUser - buffer.maxIndex) * averageItemHeight : 0;\n\n // paddings combine adjustment\n topPadding.height(topPaddingHeight + topPaddingHeightAdd);\n bottomPadding.height(bottomPaddingHeight + bottomPaddingHeightAdd);\n },\n onAfterMinIndexSet: function onAfterMinIndexSet(topPaddingHeightOld) {\n // additional scrollTop adjustment in case of datasource.minIndex external set\n if (buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser) {\n var diff = topPadding.height() - topPaddingHeightOld;\n viewport.scrollTop(viewport.scrollTop() + diff);\n while ((diff -= viewport.scrollTop()) > 0) {\n bottomPadding.height(bottomPadding.height() + diff);\n viewport.scrollTop(viewport.scrollTop() + diff);\n }\n }\n },\n onAfterPrepend: function onAfterPrepend(updates) {\n if (!updates.prepended.length) return;\n var height = buffer.effectiveHeight(updates.prepended);\n var paddingHeight = topPadding.height() - height;\n if (paddingHeight >= 0) {\n topPadding.height(paddingHeight);\n } else {\n topPadding.height(0);\n viewport.scrollTop(viewport.scrollTop() - paddingHeight);\n }\n },\n resetTopPadding: function resetTopPadding() {\n topPadding.height(0);\n topPadding.cache.clear();\n },\n resetBottomPadding: function resetBottomPadding() {\n bottomPadding.height(0);\n bottomPadding.cache.clear();\n },\n removeCacheItem: function removeCacheItem(item, isTop) {\n topPadding.cache.remove(item, isTop);\n bottomPadding.cache.remove(item, isTop);\n },\n removeItem: function removeItem(item) {\n this.removeCacheItem(item);\n return buffer.remove(item);\n }\n });\n\n return viewport;\n}\n\n/***/ }),\n/* 5 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\n// Can't just extend the Array, due to Babel does not support built-in classes extending\n// This solution was taken from https://stackoverflow.com/questions/46897414/es6-class-extends-array-workaround-for-es5-babel-transpile\nvar CacheProto = function () {\n function CacheProto() {\n _classCallCheck(this, CacheProto);\n }\n\n _createClass(CacheProto, [{\n key: 'add',\n value: function add(item) {\n for (var i = this.length - 1; i >= 0; i--) {\n if (this[i].index === item.scope.$index) {\n this[i].height = item.element.outerHeight();\n return;\n }\n }\n this.push({\n index: item.scope.$index,\n height: item.element.outerHeight()\n });\n this.sort(function (a, b) {\n return a.index < b.index ? -1 : a.index > b.index ? 1 : 0;\n });\n }\n }, {\n key: 'remove',\n value: function remove(argument, _isTop) {\n var index = argument % 1 === 0 ? argument : argument.scope.$index;\n var isTop = argument % 1 === 0 ? _isTop : argument._op === 'isTop';\n for (var i = this.length - 1; i >= 0; i--) {\n if (this[i].index === index) {\n this.splice(i, 1);\n break;\n }\n }\n if (!isTop) {\n for (var _i = this.length - 1; _i >= 0; _i--) {\n if (this[_i].index > index) {\n this[_i].index--;\n }\n }\n }\n }\n }, {\n key: 'clear',\n value: function clear() {\n this.length = 0;\n }\n }]);\n\n return CacheProto;\n}();\n\nfunction Cache() {\n var instance = [];\n instance.push.apply(instance, arguments);\n Object.setPrototypeOf(instance, Cache.prototype);\n return instance;\n}\nCache.prototype = Object.create(Array.prototype);\nObject.getOwnPropertyNames(CacheProto.prototype).forEach(function (methodName) {\n return Cache.prototype[methodName] = CacheProto.prototype[methodName];\n});\n\nfunction generateElement(template) {\n if (template.nodeType !== Node.ELEMENT_NODE) {\n throw new Error('ui-scroll directive requires an Element node for templating the view');\n }\n var element = void 0;\n switch (template.tagName.toLowerCase()) {\n case 'dl':\n throw new Error('ui-scroll directive does not support <' + template.tagName + '> as a repeating tag: ' + template.outerHTML);\n case 'tr':\n var table = angular.element('
    ');\n element = table.find('tr');\n break;\n case 'li':\n element = angular.element('
  • ');\n break;\n default:\n element = angular.element('
    ');\n }\n return element;\n}\n\nvar Padding = function () {\n function Padding(template) {\n _classCallCheck(this, Padding);\n\n this.element = generateElement(template);\n this.cache = new Cache();\n }\n\n _createClass(Padding, [{\n key: 'height',\n value: function height() {\n return this.element.height.apply(this.element, arguments);\n }\n }]);\n\n return Padding;\n}();\n\nexports.default = Padding;\n\n/***/ }),\n/* 6 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nvar Adapter = function () {\n function Adapter($scope, $parse, $attr, viewport, buffer, doAdjust, reload) {\n _classCallCheck(this, Adapter);\n\n this.$parse = $parse;\n this.$attr = $attr;\n this.viewport = viewport;\n this.buffer = buffer;\n\n this.doAdjust = doAdjust;\n this.reload = reload;\n\n this.isLoading = false;\n this.disabled = false;\n\n var viewportScope = viewport.getScope();\n this.startScope = viewportScope.$parent ? viewportScope : $scope;\n\n this.publicContext = {};\n this.assignAdapter($attr.adapter);\n this.generatePublicContext();\n }\n\n _createClass(Adapter, [{\n key: 'assignAdapter',\n value: function assignAdapter(adapterAttr) {\n if (!adapterAttr || !(adapterAttr = adapterAttr.replace(/^\\s+|\\s+$/gm, ''))) {\n return;\n }\n var adapterOnScope = void 0;\n\n try {\n this.$parse(adapterAttr).assign(this.startScope, {});\n adapterOnScope = this.$parse(adapterAttr)(this.startScope);\n } catch (error) {\n error.message = 'Angular ui-scroll Adapter assignment exception.\\n' + ('Can\\'t parse \"' + adapterAttr + '\" expression.\\n') + error.message;\n throw error;\n }\n\n Object.assign(adapterOnScope, this.publicContext);\n this.publicContext = adapterOnScope;\n }\n }, {\n key: 'generatePublicContext',\n value: function generatePublicContext() {\n var _this = this;\n\n // these methods will be accessible out of ui-scroll via user defined adapter\n var publicMethods = ['reload', 'applyUpdates', 'append', 'prepend', 'isBOF', 'isEOF', 'isEmpty'];\n for (var i = publicMethods.length - 1; i >= 0; i--) {\n this.publicContext[publicMethods[i]] = this[publicMethods[i]].bind(this);\n }\n\n // these read-only props will be accessible out of ui-scroll via user defined adapter\n var publicProps = ['isLoading', 'topVisible', 'topVisibleElement', 'topVisibleScope', 'bottomVisible', 'bottomVisibleElement', 'bottomVisibleScope'];\n\n var _loop = function _loop(_i) {\n var property = void 0,\n attr = _this.$attr[publicProps[_i]];\n Object.defineProperty(_this, publicProps[_i], {\n get: function get() {\n return property;\n },\n set: function set(value) {\n property = value;\n _this.publicContext[publicProps[_i]] = value;\n if (attr) {\n _this.$parse(attr).assign(_this.startScope, value);\n }\n }\n });\n };\n\n for (var _i = publicProps.length - 1; _i >= 0; _i--) {\n _loop(_i);\n }\n\n // non-read-only public property\n Object.defineProperty(this.publicContext, 'disabled', {\n get: function get() {\n return _this.disabled;\n },\n set: function set(value) {\n return !(_this.disabled = value) ? _this.doAdjust() : null;\n }\n });\n }\n }, {\n key: 'loading',\n value: function loading(value) {\n this.isLoading = value;\n }\n }, {\n key: 'isBOF',\n value: function isBOF() {\n return this.buffer.bof;\n }\n }, {\n key: 'isEOF',\n value: function isEOF() {\n return this.buffer.eof;\n }\n }, {\n key: 'isEmpty',\n value: function isEmpty() {\n return !this.buffer.length;\n }\n }, {\n key: 'append',\n value: function append(newItems) {\n this.buffer.append(newItems);\n this.doAdjust();\n this.viewport.clipTop();\n this.viewport.clipBottom();\n }\n }, {\n key: 'prepend',\n value: function prepend(newItems) {\n this.buffer.prepend(newItems);\n this.doAdjust();\n this.viewport.clipTop();\n this.viewport.clipBottom();\n }\n }, {\n key: 'applyUpdates',\n value: function applyUpdates(arg1, arg2) {\n if (typeof arg1 === 'function') {\n this.applyUpdatesFunc(arg1);\n } else {\n this.applyUpdatesIndex(arg1, arg2);\n }\n this.doAdjust();\n }\n }, {\n key: 'applyUpdatesFunc',\n value: function applyUpdatesFunc(cb) {\n var _this2 = this;\n\n this.buffer.slice(0).forEach(function (wrapper) {\n // we need to do it on the buffer clone, because buffer content\n // may change as we iterate through\n _this2.applyUpdate(wrapper, cb(wrapper.item, wrapper.scope, wrapper.element));\n });\n }\n }, {\n key: 'applyUpdatesIndex',\n value: function applyUpdatesIndex(index, newItems) {\n if (index % 1 !== 0) {\n throw new Error('applyUpdates - ' + index + ' is not a valid index (should be an integer)');\n }\n var _index = index - this.buffer.first;\n\n // apply updates only within buffer\n if (_index >= 0 && _index < this.buffer.length) {\n this.applyUpdate(this.buffer[_index], newItems);\n }\n // out-of-buffer case: deletion may affect Paddings\n else if (index >= this.buffer.getAbsMinIndex() && index <= this.buffer.getAbsMaxIndex()) {\n if (Array.isArray(newItems) && !newItems.length) {\n this.viewport.removeCacheItem(index, index === this.buffer.minIndex);\n if (index === this.buffer.getAbsMinIndex()) {\n this.buffer.incrementMinIndex();\n } else {\n this.buffer.decrementMaxIndex();\n }\n }\n }\n }\n }, {\n key: 'applyUpdate',\n value: function applyUpdate(wrapper, newItems) {\n var _this3 = this;\n\n if (!Array.isArray(newItems)) {\n return;\n }\n var position = this.buffer.indexOf(wrapper);\n if (!newItems.reverse().some(function (newItem) {\n return newItem === wrapper.item;\n })) {\n wrapper.op = 'remove';\n if (position === 0 && !newItems.length) {\n wrapper._op = 'isTop'; // to catch \"first\" edge case on remove\n }\n }\n newItems.forEach(function (newItem) {\n if (newItem === wrapper.item) {\n position--;\n } else {\n // 3 parameter (isTop) is to catch \"first\" edge case on insert\n _this3.buffer.insert(position + 1, newItem, position === -1);\n }\n });\n }\n }, {\n key: 'calculateProperties',\n value: function calculateProperties() {\n var rowTop = null,\n topHeight = 0;\n var topDone = false,\n bottomDone = false;\n var length = this.buffer.length;\n\n for (var i = 0; i < length; i++) {\n var item = this.buffer[i];\n var itemTop = item.element.offset().top;\n\n if (rowTop !== itemTop) {\n // a new row condition\n var itemHeight = item.element.outerHeight(true);\n var top = this.viewport.topDataPos() + topHeight + itemHeight;\n\n if (!topDone && top > this.viewport.topVisiblePos()) {\n topDone = true;\n this['topVisible'] = item.item;\n this['topVisibleElement'] = item.element;\n this['topVisibleScope'] = item.scope;\n }\n if (!bottomDone && (top >= this.viewport.bottomVisiblePos() || i === length - 1 && this.isEOF())) {\n bottomDone = true;\n this['bottomVisible'] = item.item;\n this['bottomVisibleElement'] = item.element;\n this['bottomVisibleScope'] = item.scope;\n }\n topHeight += itemHeight;\n }\n rowTop = itemTop;\n\n if (topDone && bottomDone) {\n break;\n }\n }\n }\n }]);\n\n return Adapter;\n}();\n\nexports.default = Adapter;\n\n/***/ })\n/******/ ]);\n\n\n// WEBPACK FOOTER //\n// ui-scroll.min.js"," \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId]) {\n \t\t\treturn installedModules[moduleId].exports;\n \t\t}\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\ti: moduleId,\n \t\t\tl: false,\n \t\t\texports: {}\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.l = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// define getter function for harmony exports\n \t__webpack_require__.d = function(exports, name, getter) {\n \t\tif(!__webpack_require__.o(exports, name)) {\n \t\t\tObject.defineProperty(exports, name, {\n \t\t\t\tconfigurable: false,\n \t\t\t\tenumerable: true,\n \t\t\t\tget: getter\n \t\t\t});\n \t\t}\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = 0);\n\n\n\n// WEBPACK FOOTER //\n// webpack/bootstrap 7b7663c4ef0bd85aea15","import JQLiteExtras from './modules/jqLiteExtras';\r\nimport ElementRoutines from './modules/elementRoutines.js';\r\nimport ScrollBuffer from './modules/buffer.js';\r\nimport Viewport from './modules/viewport.js';\r\nimport Adapter from './modules/adapter.js';\r\n\r\nangular.module('ui.scroll', [])\r\n\r\n .constant('JQLiteExtras', JQLiteExtras)\r\n .run(['JQLiteExtras', (JQLiteExtras) =>\r\n !window.jQuery ? (new JQLiteExtras()).registerFor(angular.element) : null\r\n ])\r\n\r\n .directive('uiScrollViewport', function () {\r\n return {\r\n restrict: 'A',\r\n controller: [\r\n '$scope',\r\n '$element',\r\n function (scope, element) {\r\n this.container = element;\r\n this.viewport = element;\r\n this.scope = scope;\r\n\r\n angular.forEach(element.children(), child => {\r\n if (child.tagName.toLowerCase() === 'tbody') {\r\n this.viewport = angular.element(child);\r\n }\r\n });\r\n\r\n return this;\r\n }\r\n ]\r\n };\r\n })\r\n\r\n .directive('uiScroll', [\r\n '$log',\r\n '$injector',\r\n '$rootScope',\r\n '$timeout',\r\n '$interval',\r\n '$q',\r\n '$parse',\r\n function (console, $injector, $rootScope, $timeout, $interval, $q, $parse) {\r\n\r\n return {\r\n require: ['?^uiScrollViewport'],\r\n restrict: 'A',\r\n transclude: 'element',\r\n priority: 1000,\r\n terminal: true,\r\n link: link\r\n };\r\n\r\n function link($scope, element, $attr, controllers, linker) {\r\n const match = $attr.uiScroll.match(/^\\s*(\\w+)\\s+in\\s+([(\\w|\\$)\\.]+)\\s*$/);\r\n if (!match) {\r\n throw new Error('Expected uiScroll in form of \\'_item_ in _datasource_\\' but got \\'' + $attr.uiScroll + '\\'');\r\n }\r\n\r\n function parseNumericAttr(value, defaultValue) {\r\n const result = $parse(value)($scope);\r\n return isNaN(result) ? defaultValue : result;\r\n }\r\n\r\n const BUFFER_MIN = 3;\r\n const BUFFER_DEFAULT = 10;\r\n const PADDING_MIN = 0.3;\r\n const PADDING_DEFAULT = 0.5;\r\n const MAX_VIEWPORT_DELAY = 500;\r\n const VIEWPORT_POLLING_INTERVAL = 50;\r\n\r\n let datasource = null;\r\n const itemName = match[1];\r\n const datasourceName = match[2];\r\n const viewportController = controllers[0];\r\n const bufferSize = Math.max(BUFFER_MIN, parseNumericAttr($attr.bufferSize, BUFFER_DEFAULT));\r\n const padding = Math.max(PADDING_MIN, parseNumericAttr($attr.padding, PADDING_DEFAULT));\r\n let startIndex = parseNumericAttr($attr.startIndex, 1);\r\n let ridActual = 0; // current data revision id\r\n let pending = [];\r\n\r\n const elementRoutines = new ElementRoutines($injector, $q);\r\n const buffer = new ScrollBuffer(elementRoutines, bufferSize, startIndex);\r\n const viewport = new Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding);\r\n const adapter = new Adapter($scope, $parse, $attr, viewport, buffer, doAdjust, reload);\r\n\r\n if (viewportController) {\r\n viewportController.adapter = adapter;\r\n }\r\n\r\n const isDatasourceValid = () =>\r\n Object.prototype.toString.call(datasource) === '[object Object]' && typeof datasource.get === 'function';\r\n\r\n datasource = $parse(datasourceName)($scope); // try to get datasource on scope\r\n if (!isDatasourceValid()) {\r\n datasource = $injector.get(datasourceName); // try to inject datasource as service\r\n if (!isDatasourceValid()) {\r\n throw new Error(datasourceName + ' is not a valid datasource');\r\n }\r\n }\r\n\r\n let onRenderHandlers = [];\r\n function onRenderHandlersRunner() {\r\n onRenderHandlers.forEach(handler => handler.run());\r\n onRenderHandlers = [];\r\n }\r\n function persistDatasourceIndex(datasource, propName) {\r\n let getter;\r\n // need to postpone min/maxIndexUser processing if the view is empty\r\n if(Number.isInteger(datasource[propName])) {\r\n getter = datasource[propName];\r\n if(Number.isInteger(getter)) {\r\n onRenderHandlers = onRenderHandlers.filter(handler => handler.id !== propName);\r\n onRenderHandlers.push({\r\n id: propName,\r\n run: () => datasource[propName] = getter\r\n });\r\n }\r\n }\r\n }\r\n\r\n function defineDatasourceIndex(datasource, propName, propUserName) {\r\n const descriptor = Object.getOwnPropertyDescriptor(datasource, propName);\r\n if (descriptor && (descriptor.set || descriptor.get)) {\r\n return;\r\n }\r\n let getter;\r\n persistDatasourceIndex(datasource, propName);\r\n Object.defineProperty(datasource, propName, {\r\n set: (value) => {\r\n getter = value;\r\n if(pending.length && !buffer.length) {\r\n persistDatasourceIndex(datasource, propName);\r\n return;\r\n }\r\n buffer[propUserName] = value;\r\n const topPaddingHeightOld = viewport.topDataPos();\r\n viewport.adjustPaddings();\r\n if (propName === 'minIndex') {\r\n viewport.onAfterMinIndexSet(topPaddingHeightOld);\r\n }\r\n },\r\n get: () => getter\r\n });\r\n }\r\n\r\n defineDatasourceIndex(datasource, 'minIndex', 'minIndexUser');\r\n defineDatasourceIndex(datasource, 'maxIndex', 'maxIndexUser');\r\n\r\n const fetchNext = (datasource.get.length !== 2) ?\r\n (success) => datasource.get(buffer.next, bufferSize, success) :\r\n (success) => {\r\n datasource.get({\r\n index: buffer.next,\r\n append: buffer.length ? buffer[buffer.length - 1].item : void 0,\r\n count: bufferSize\r\n }, success);\r\n };\r\n\r\n const fetchPrevious = (datasource.get.length !== 2) ?\r\n (success) => datasource.get(buffer.first - bufferSize, bufferSize, success) :\r\n (success) => {\r\n datasource.get({\r\n index: buffer.first - bufferSize,\r\n prepend: buffer.length ? buffer[0].item : void 0,\r\n count: bufferSize\r\n }, success);\r\n };\r\n\r\n const initialize = () => {\r\n let tryCount = 0;\r\n if(!viewport.applyContainerStyle()) {\r\n const timer = $interval(() => {\r\n tryCount++;\r\n if(viewport.applyContainerStyle()) {\r\n $interval.cancel(timer);\r\n doAdjust();\r\n }\r\n if(tryCount * VIEWPORT_POLLING_INTERVAL >= MAX_VIEWPORT_DELAY) {\r\n $interval.cancel(timer);\r\n throw Error(`ui-scroll directive requires a viewport with non-zero height in ${MAX_VIEWPORT_DELAY}ms`);\r\n }\r\n }, VIEWPORT_POLLING_INTERVAL);\r\n }\r\n else {\r\n doAdjust();\r\n }\r\n };\r\n\r\n /**\r\n * Build padding elements\r\n *\r\n * Calling linker is the only way I found to get access to the tag name of the template\r\n * to prevent the directive scope from pollution a new scope is created and destroyed\r\n * right after the builder creation is completed\r\n */\r\n linker((clone, scope) => {\r\n viewport.createPaddingElements(clone[0]);\r\n // we do not include the clone in the DOM. It means that the nested directives will not\r\n // be able to reach the parent directives, but in this case it is intentional because we\r\n // created the clone to access the template tag name\r\n scope.$destroy();\r\n clone.remove();\r\n });\r\n\r\n $scope.$on('$destroy', () => {\r\n unbindEvents();\r\n viewport.unbind('mousewheel', wheelHandler);\r\n });\r\n\r\n viewport.bind('mousewheel', wheelHandler);\r\n\r\n initialize();\r\n\r\n /* Private function definitions */\r\n\r\n function isInvalid(rid) {\r\n return (rid && rid !== ridActual) || $scope.$$destroyed;\r\n }\r\n\r\n function bindEvents() {\r\n viewport.bind('resize', resizeAndScrollHandler);\r\n viewport.bind('scroll', resizeAndScrollHandler);\r\n }\r\n\r\n function unbindEvents() {\r\n viewport.unbind('resize', resizeAndScrollHandler);\r\n viewport.unbind('scroll', resizeAndScrollHandler);\r\n }\r\n\r\n function reload() {\r\n viewport.resetTopPadding();\r\n viewport.resetBottomPadding();\r\n if (arguments.length) {\r\n startIndex = arguments[0];\r\n }\r\n buffer.reset(startIndex);\r\n persistDatasourceIndex(datasource, 'minIndex');\r\n persistDatasourceIndex(datasource, 'maxIndex');\r\n doAdjust();\r\n }\r\n\r\n function isElementVisible(wrapper) {\r\n return wrapper.element.height() && wrapper.element[0].offsetParent;\r\n }\r\n\r\n function visibilityWatcher(wrapper) {\r\n if (isElementVisible(wrapper)) {\r\n buffer.forEach((item) => {\r\n if (typeof item.unregisterVisibilityWatcher === 'function') {\r\n item.unregisterVisibilityWatcher();\r\n delete item.unregisterVisibilityWatcher;\r\n }\r\n });\r\n if (!pending.length) {\r\n $timeout(() => doAdjust());\r\n }\r\n }\r\n }\r\n\r\n function insertWrapperContent(wrapper, insertAfter) {\r\n createElement(wrapper, insertAfter, viewport.insertElement);\r\n if (!isElementVisible(wrapper)) {\r\n wrapper.unregisterVisibilityWatcher = wrapper.scope.$watch(() => visibilityWatcher(wrapper));\r\n }\r\n elementRoutines.hideElement(wrapper); // hide inserted elements before data binding\r\n }\r\n\r\n function createElement(wrapper, insertAfter, insertElement) {\r\n let promises = null;\r\n const sibling = (insertAfter > 0) ? buffer[insertAfter - 1].element : undefined;\r\n linker((clone, scope) => {\r\n promises = insertElement(clone, sibling);\r\n wrapper.element = clone;\r\n wrapper.scope = scope;\r\n scope[itemName] = wrapper.item;\r\n });\r\n // ui-scroll-grid apply\r\n if (adapter.transform) {\r\n const tdInitializer = wrapper.scope.uiScrollTdInitializer;\r\n if (tdInitializer && tdInitializer.linking) {\r\n adapter.transform(wrapper.scope, wrapper.element);\r\n } else {\r\n wrapper.scope.uiScrollTdInitializer = {\r\n onLink: () => adapter.transform(wrapper.scope, wrapper.element),\r\n scope: wrapper.scope\r\n };\r\n }\r\n }\r\n return promises;\r\n }\r\n\r\n function updateDOM() {\r\n let promises = [];\r\n const toBePrepended = [];\r\n const toBeRemoved = [];\r\n const inserted = [];\r\n\r\n buffer.forEach((wrapper, i) => {\r\n switch (wrapper.op) {\r\n case 'prepend':\r\n toBePrepended.unshift(wrapper);\r\n break;\r\n case 'append':\r\n insertWrapperContent(wrapper, i);\r\n wrapper.op = 'none';\r\n inserted.push(wrapper);\r\n break;\r\n case 'insert':\r\n promises = promises.concat(createElement(wrapper, i, viewport.insertElementAnimated));\r\n wrapper.op = 'none';\r\n inserted.push(wrapper);\r\n break;\r\n case 'remove':\r\n toBeRemoved.push(wrapper);\r\n }\r\n });\r\n\r\n toBeRemoved.forEach((wrapper) => promises = promises.concat(viewport.removeItem(wrapper)));\r\n\r\n if (toBePrepended.length)\r\n toBePrepended.forEach((wrapper) => {\r\n insertWrapperContent(wrapper);\r\n wrapper.op = 'none';\r\n });\r\n\r\n buffer.forEach((item, i) => item.scope.$index = buffer.first + i);\r\n\r\n return {\r\n prepended: toBePrepended,\r\n removed: toBeRemoved,\r\n inserted: inserted,\r\n animated: promises\r\n };\r\n\r\n }\r\n\r\n function updatePaddings(rid, updates) {\r\n // schedule another doAdjust after animation completion\r\n if (updates.animated.length) {\r\n $q.all(updates.animated).then(() => {\r\n viewport.adjustPaddings();\r\n doAdjust(rid);\r\n });\r\n } else {\r\n viewport.adjustPaddings();\r\n }\r\n }\r\n\r\n function enqueueFetch(rid, updates) {\r\n if (viewport.shouldLoadBottom()) {\r\n if (!updates || buffer.effectiveHeight(updates.inserted) > 0) {\r\n // this means that at least one item appended in the last batch has height > 0\r\n if (pending.push(true) === 1) {\r\n adapter.loading(true);\r\n fetch(rid);\r\n }\r\n }\r\n } else if (viewport.shouldLoadTop()) {\r\n if ((!updates || buffer.effectiveHeight(updates.prepended) > 0) || pending[0]) {\r\n // this means that at least one item appended in the last batch has height > 0\r\n // pending[0] = true means that previous fetch was appending. We need to force at least one prepend\r\n // BTW there will always be at least 1 element in the pending array because bottom is fetched first\r\n if (pending.push(false) === 1) {\r\n adapter.loading(true);\r\n fetch(rid);\r\n }\r\n }\r\n }\r\n }\r\n\r\n function processUpdates() {\r\n const updates = updateDOM();\r\n\r\n // We need the item bindings to be processed before we can do adjustments\r\n !$scope.$$phase && !$rootScope.$$phase && $scope.$digest();\r\n\r\n updates.inserted.forEach(w => elementRoutines.showElement(w));\r\n updates.prepended.forEach(w => elementRoutines.showElement(w));\r\n return updates;\r\n }\r\n\r\n function doAdjust(rid) {\r\n if (!rid) { // dismiss pending requests\r\n pending = [];\r\n rid = ++ridActual;\r\n }\r\n\r\n const updates = processUpdates();\r\n\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n updatePaddings(rid, updates);\r\n enqueueFetch(rid);\r\n\r\n if (!pending.length) {\r\n adapter.calculateProperties();\r\n }\r\n }\r\n\r\n function doAdjustAfterFetch(rid) {\r\n const updates = processUpdates();\r\n\r\n viewport.onAfterPrepend(updates);\r\n\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n updatePaddings(rid, updates);\r\n onRenderHandlersRunner();\r\n enqueueFetch(rid, updates);\r\n pending.shift();\r\n\r\n if (pending.length)\r\n fetch(rid);\r\n else {\r\n adapter.loading(false);\r\n bindEvents();\r\n adapter.calculateProperties();\r\n }\r\n }\r\n\r\n function fetch(rid) {\r\n if (pending[0]) {// scrolling down\r\n if (buffer.length && !viewport.shouldLoadBottom()) {\r\n doAdjustAfterFetch(rid);\r\n } else {\r\n fetchNext((result) => {\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n if (result.length < bufferSize) {\r\n buffer.eof = true;\r\n }\r\n\r\n if (result.length > 0) {\r\n viewport.clipTop();\r\n buffer.append(result);\r\n }\r\n\r\n doAdjustAfterFetch(rid);\r\n });\r\n }\r\n } else { // scrolling up\r\n if (buffer.length && !viewport.shouldLoadTop()) {\r\n doAdjustAfterFetch(rid);\r\n } else {\r\n fetchPrevious((result) => {\r\n if (isInvalid(rid)) {\r\n return;\r\n }\r\n\r\n if (result.length < bufferSize) {\r\n buffer.bof = true;\r\n // log 'bof is reached'\r\n }\r\n\r\n if (result.length > 0) {\r\n if (buffer.length) {\r\n viewport.clipBottom();\r\n }\r\n buffer.prepend(result);\r\n }\r\n\r\n doAdjustAfterFetch(rid);\r\n });\r\n }\r\n }\r\n }\r\n\r\n function resizeAndScrollHandler() {\r\n if (!$rootScope.$$phase && !adapter.isLoading && !adapter.disabled) {\r\n\r\n enqueueFetch(ridActual);\r\n\r\n if (pending.length) {\r\n unbindEvents();\r\n } else {\r\n adapter.calculateProperties();\r\n !$scope.$$phase && $scope.$digest();\r\n }\r\n }\r\n }\r\n\r\n function wheelHandler(event) {\r\n if (!adapter.disabled) {\r\n const scrollTop = viewport[0].scrollTop;\r\n const yMax = viewport[0].scrollHeight - viewport[0].clientHeight;\r\n\r\n if ((scrollTop === 0 && !buffer.bof) || (scrollTop === yMax && !buffer.eof)) {\r\n event.preventDefault();\r\n }\r\n }\r\n }\r\n }\r\n\r\n }\r\n ]);\n\n\n// WEBPACK FOOTER //\n// ./src/ui-scroll.js","/*!\r\n globals: angular, window\r\n List of used element methods available in JQuery but not in JQuery Lite\r\n element.before(elem)\r\n element.height()\r\n element.outerHeight(true)\r\n element.height(value) = only for Top/Bottom padding elements\r\n element.scrollTop()\r\n element.scrollTop(value)\r\n */\r\n\r\nexport default class JQLiteExtras {\r\n\r\n registerFor(element) {\r\n let convertToPx, css, getStyle, isWindow;\r\n // angular implementation blows up if elem is the window\r\n css = angular.element.prototype.css;\r\n\r\n element.prototype.css = function (name, value) {\r\n let self = this;\r\n let elem = self[0];\r\n if (!(!elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style)) {\r\n return css.call(self, name, value);\r\n }\r\n };\r\n\r\n // as defined in angularjs v1.0.5\r\n isWindow = (obj) => obj && obj.document && obj.location && obj.alert && obj.setInterval;\r\n\r\n function scrollTo(self, direction, value) {\r\n let elem = self[0];\r\n let [method, prop, preserve] = {\r\n top: [\r\n 'scrollTop',\r\n 'pageYOffset',\r\n 'scrollLeft'\r\n ],\r\n left: [\r\n 'scrollLeft',\r\n 'pageXOffset',\r\n 'scrollTop'\r\n ]\r\n }[direction];\r\n\r\n const isValueDefined = typeof value !== 'undefined';\r\n if (isWindow(elem)) {\r\n if (isValueDefined) {\r\n return elem.scrollTo(self[preserve].call(self), value);\r\n }\r\n return (prop in elem) ? elem[prop] : elem.document.documentElement[method];\r\n } else {\r\n if (isValueDefined) {\r\n elem[method] = value;\r\n }\r\n return elem[method];\r\n }\r\n }\r\n\r\n if (window.getComputedStyle) {\r\n getStyle = (elem) => window.getComputedStyle(elem, null);\r\n convertToPx = (elem, value) => parseFloat(value);\r\n } else {\r\n getStyle = (elem) => elem.currentStyle;\r\n convertToPx = (elem, value) => {\r\n let left, result, rs, rsLeft, style;\r\n let core_pnum = /[+-]?(?:\\d*\\.|)\\d+(?:[eE][+-]?\\d+|)/.source;\r\n let rnumnonpx = new RegExp('^(' + core_pnum + ')(?!px)[a-z%]+$', 'i');\r\n\r\n if (!rnumnonpx.test(value)) {\r\n return parseFloat(value);\r\n }\r\n\r\n // ported from JQuery\r\n style = elem.style;\r\n left = style.left;\r\n rs = elem.runtimeStyle;\r\n rsLeft = rs && rs.left;\r\n if (rs) {\r\n rs.left = style.left;\r\n }\r\n // put in the new values to get a computed style out\r\n style.left = value;\r\n result = style.pixelLeft;\r\n style.left = left;\r\n if (rsLeft) {\r\n rs.left = rsLeft;\r\n }\r\n return result;\r\n };\r\n }\r\n\r\n function getMeasurements(elem, measure) {\r\n let base, borderA, borderB, computedMarginA, computedMarginB, computedStyle, dirA, dirB, marginA, marginB, paddingA, paddingB;\r\n\r\n if (isWindow(elem)) {\r\n base = document.documentElement[{height: 'clientHeight', width: 'clientWidth'}[measure]];\r\n\r\n return {\r\n base: base,\r\n padding: 0,\r\n border: 0,\r\n margin: 0\r\n };\r\n }\r\n\r\n // Start with offset property\r\n [\r\n base,\r\n dirA,\r\n dirB\r\n ] = {\r\n width: [\r\n elem.offsetWidth,\r\n 'Left',\r\n 'Right'\r\n ],\r\n height: [\r\n elem.offsetHeight,\r\n 'Top',\r\n 'Bottom'\r\n ]\r\n }[measure];\r\n\r\n computedStyle = getStyle(elem);\r\n paddingA = convertToPx(elem, computedStyle['padding' + dirA]) || 0;\r\n paddingB = convertToPx(elem, computedStyle['padding' + dirB]) || 0;\r\n borderA = convertToPx(elem, computedStyle['border' + dirA + 'Width']) || 0;\r\n borderB = convertToPx(elem, computedStyle['border' + dirB + 'Width']) || 0;\r\n computedMarginA = computedStyle['margin' + dirA];\r\n computedMarginB = computedStyle['margin' + dirB];\r\n\r\n // I do not care for width for now, so this hack is irrelevant\r\n // if ( !supportsPercentMargin )\r\n // computedMarginA = hackPercentMargin( elem, computedStyle, computedMarginA )\r\n // computedMarginB = hackPercentMargin( elem, computedStyle, computedMarginB )\r\n marginA = convertToPx(elem, computedMarginA) || 0;\r\n marginB = convertToPx(elem, computedMarginB) || 0;\r\n\r\n return {\r\n base: base,\r\n padding: paddingA + paddingB,\r\n border: borderA + borderB,\r\n margin: marginA + marginB\r\n };\r\n }\r\n\r\n function getWidthHeight(elem, direction, measure) {\r\n let computedStyle, result;\r\n\r\n let measurements = getMeasurements(elem, direction);\r\n\r\n if (measurements.base > 0) {\r\n return {\r\n base: measurements.base - measurements.padding - measurements.border,\r\n outer: measurements.base,\r\n outerfull: measurements.base + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // Fall back to computed then uncomputed css if necessary\r\n computedStyle = getStyle(elem);\r\n result = computedStyle[direction];\r\n\r\n if (result < 0 || result === null) {\r\n result = elem.style[direction] || 0;\r\n }\r\n\r\n // Normalize \"\", auto, and prepare for extra\r\n result = parseFloat(result) || 0;\r\n\r\n return {\r\n base: result - measurements.padding - measurements.border,\r\n outer: result,\r\n outerfull: result + measurements.padding + measurements.border + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // define missing methods\r\n return angular.forEach({\r\n before(newElem) {\r\n var children, elem, i, j, parent, ref, self;\r\n self = this;\r\n elem = self[0];\r\n parent = self.parent();\r\n children = parent.contents();\r\n if (children[0] === elem) {\r\n return parent.prepend(newElem);\r\n } else {\r\n for (i = j = 1, ref = children.length - 1; 1 <= ref ? j <= ref : j >= ref; i = 1 <= ref ? ++j : --j) {\r\n if (children[i] === elem) {\r\n angular.element(children[i - 1]).after(newElem);\r\n return;\r\n }\r\n }\r\n throw new Error('invalid DOM structure ' + elem.outerHTML);\r\n }\r\n },\r\n height (value){\r\n var self;\r\n self = this;\r\n if (typeof value !== 'undefined') {\r\n if (Number.isInteger(value)) {\r\n value = value + 'px';\r\n }\r\n return css.call(self, 'height', value);\r\n } else {\r\n return getWidthHeight(this[0], 'height', 'base');\r\n }\r\n },\r\n outerHeight(option) {\r\n return getWidthHeight(this[0], 'height', option ? 'outerfull' : 'outer');\r\n },\r\n outerWidth(option) {\r\n return getWidthHeight(this[0], 'width', option ? 'outerfull' : 'outer');\r\n },\r\n\r\n /*\r\n The offset setter method is not implemented\r\n */\r\n offset(value) {\r\n let docElem, win;\r\n let self = this;\r\n let box = {\r\n top: 0,\r\n left: 0\r\n };\r\n let elem = self[0];\r\n let doc = elem && elem.ownerDocument;\r\n\r\n if (arguments.length) {\r\n if (value === undefined) {\r\n return self;\r\n }\r\n // TODO: implement setter\r\n throw new Error('offset setter method is not implemented');\r\n }\r\n\r\n if (!doc) {\r\n return;\r\n }\r\n\r\n docElem = doc.documentElement;\r\n\r\n // TODO: Make sure it's not a disconnected DOM node\r\n\r\n if (elem.getBoundingClientRect != null) {\r\n box = elem.getBoundingClientRect();\r\n }\r\n\r\n win = doc.defaultView || doc.parentWindow;\r\n\r\n return {\r\n top: box.top + (win.pageYOffset || docElem.scrollTop) - (docElem.clientTop || 0),\r\n left: box.left + (win.pageXOffset || docElem.scrollLeft) - (docElem.clientLeft || 0)\r\n };\r\n },\r\n scrollTop(value) {\r\n return scrollTo(this, 'top', value);\r\n },\r\n scrollLeft(value) {\r\n return scrollTo(this, 'left', value);\r\n }\r\n }, (value, key) => {\r\n if (!element.prototype[key]) {\r\n return element.prototype[key] = value;\r\n }\r\n });\r\n }\r\n\r\n}\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/modules/jqLiteExtras.js","const hideClassToken = 'ng-ui-scroll-hide';\r\n\r\nfunction addCSSRule(sheet, selector, rules, index) {\r\n if('insertRule' in sheet) {\r\n sheet.insertRule(selector + '{' + rules + '}', index);\r\n }\r\n else if('addRule' in sheet) {\r\n sheet.addRule(selector, rules, index);\r\n }\r\n}\r\n\r\nexport default class ElementRoutines {\r\n\r\n constructor($injector, $q) {\r\n this.$animate = ($injector.has && $injector.has('$animate')) ? $injector.get('$animate') : null;\r\n this.isAngularVersionLessThen1_3 = angular.version.major === 1 && angular.version.minor < 3;\r\n this.$q = $q;\r\n addCSSRule(document.styleSheets[0], '.' + hideClassToken, 'display: none');\r\n }\r\n\r\n hideElement(wrapper) {\r\n wrapper.element.addClass(hideClassToken);\r\n }\r\n\r\n showElement(wrapper) {\r\n wrapper.element.removeClass(hideClassToken);\r\n }\r\n\r\n insertElement(newElement, previousElement) {\r\n previousElement.after(newElement);\r\n return [];\r\n }\r\n\r\n removeElement(wrapper) {\r\n wrapper.element.remove();\r\n wrapper.scope.$destroy();\r\n return [];\r\n }\r\n\r\n insertElementAnimated(newElement, previousElement) {\r\n if (!this.$animate) {\r\n return this.insertElement(newElement, previousElement);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n // no need for parent - previous element is never null\r\n this.$animate.enter(newElement, null, previousElement, () => deferred.resolve());\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n // no need for parent - previous element is never null\r\n return [this.$animate.enter(newElement, null, previousElement)];\r\n }\r\n\r\n removeElementAnimated(wrapper) {\r\n if (!this.$animate) {\r\n return this.removeElement(wrapper);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n this.$animate.leave(wrapper.element, () => {\r\n wrapper.scope.$destroy();\r\n return deferred.resolve();\r\n });\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n return [(this.$animate.leave(wrapper.element)).then(() => wrapper.scope.$destroy())];\r\n }\r\n}\n\n\n// WEBPACK FOOTER //\n// ./src/modules/elementRoutines.js","export default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {\r\n const buffer = Object.create(Array.prototype);\r\n\r\n Object.assign(buffer, {\r\n size: bufferSize,\r\n\r\n reset(startIndex) {\r\n buffer.remove(0, buffer.length);\r\n buffer.eof = false;\r\n buffer.bof = false;\r\n buffer.first = startIndex;\r\n buffer.next = startIndex;\r\n buffer.minIndex = startIndex;\r\n buffer.maxIndex = startIndex;\r\n buffer.minIndexUser = null;\r\n buffer.maxIndexUser = null;\r\n },\r\n\r\n append(items) {\r\n items.forEach((item) => {\r\n ++buffer.next;\r\n buffer.insert('append', item);\r\n });\r\n buffer.maxIndex = buffer.eof ? buffer.next - 1 : Math.max(buffer.next - 1, buffer.maxIndex);\r\n },\r\n\r\n prepend(items) {\r\n items.reverse().forEach((item) => {\r\n --buffer.first;\r\n buffer.insert('prepend', item);\r\n });\r\n buffer.minIndex = buffer.bof ? buffer.minIndex = buffer.first : Math.min(buffer.first, buffer.minIndex);\r\n },\r\n\r\n /**\r\n * inserts wrapped element in the buffer\r\n * the first argument is either operation keyword (see below) or a number for operation 'insert'\r\n * for insert the number is the index for the buffer element the new one have to be inserted after\r\n * operations: 'append', 'prepend', 'insert', 'remove', 'update', 'none'\r\n */\r\n insert(operation, item, isTop) {\r\n const wrapper = {\r\n item: item\r\n };\r\n\r\n if (operation % 1 === 0) {// it is an insert\r\n wrapper.op = 'insert';\r\n buffer.splice(operation, 0, wrapper);\r\n if(isTop) {\r\n buffer.first--;\r\n }\r\n else {\r\n buffer.next++;\r\n }\r\n } else {\r\n wrapper.op = operation;\r\n switch (operation) {\r\n case 'append':\r\n buffer.push(wrapper);\r\n break;\r\n case 'prepend':\r\n buffer.unshift(wrapper);\r\n break;\r\n }\r\n }\r\n },\r\n\r\n // removes elements from buffer\r\n remove(arg1, arg2) {\r\n if (Number.isInteger(arg1)) {\r\n // removes items from arg1 (including) through arg2 (excluding)\r\n for (let i = arg1; i < arg2; i++) {\r\n elementRoutines.removeElement(buffer[i]);\r\n }\r\n return buffer.splice(arg1, arg2 - arg1);\r\n }\r\n // removes single item(wrapper) from the buffer\r\n buffer.splice(buffer.indexOf(arg1), 1);\r\n if(arg1._op === 'isTop' && buffer.first === this.getAbsMinIndex()) {\r\n this.incrementMinIndex();\r\n }\r\n else {\r\n this.decrementMaxIndex();\r\n }\r\n if(arg1._op === 'isTop') {\r\n buffer.first++;\r\n }\r\n else {\r\n buffer.next--;\r\n }\r\n if(!buffer.length) {\r\n buffer.first = 1;\r\n buffer.next = 1;\r\n }\r\n\r\n return elementRoutines.removeElementAnimated(arg1);\r\n },\r\n\r\n incrementMinIndex() {\r\n if(buffer.minIndexUser !== null) {\r\n if(buffer.minIndex > buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n return;\r\n }\r\n if(buffer.minIndex === buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n }\r\n }\r\n buffer.minIndex++;\r\n },\r\n\r\n decrementMaxIndex() {\r\n if(buffer.maxIndexUser !== null && buffer.maxIndex <= buffer.maxIndexUser) {\r\n buffer.maxIndexUser--;\r\n }\r\n buffer.maxIndex--;\r\n },\r\n\r\n getAbsMinIndex() {\r\n if(buffer.minIndexUser !== null) {\r\n return Math.min(buffer.minIndexUser, buffer.minIndex);\r\n }\r\n return buffer.minIndex;\r\n },\r\n\r\n getAbsMaxIndex() {\r\n if(buffer.maxIndexUser !== null) {\r\n return Math.max(buffer.maxIndexUser, buffer.maxIndex);\r\n }\r\n return buffer.maxIndex;\r\n },\r\n\r\n effectiveHeight(elements) {\r\n if (!elements.length) {\r\n return 0;\r\n }\r\n let top = Number.MAX_VALUE;\r\n let bottom = Number.NEGATIVE_INFINITY;\r\n elements.forEach((wrapper) => {\r\n if (wrapper.element[0].offsetParent) {\r\n // element style is not display:none\r\n top = Math.min(top, wrapper.element.offset().top);\r\n bottom = Math.max(bottom, wrapper.element.offset().top + wrapper.element.outerHeight(true));\r\n }\r\n });\r\n return Math.max(0, bottom - top);\r\n }\r\n\r\n });\r\n\r\n buffer.reset(startIndex);\r\n\r\n return buffer;\r\n}\n\n\n// WEBPACK FOOTER //\n// ./src/modules/buffer.js","import Padding from './padding';\r\n\r\nexport default function Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding) {\r\n let topPadding = null;\r\n let bottomPadding = null;\r\n const viewport = viewportController && viewportController.viewport ? viewportController.viewport : angular.element(window);\r\n const container = viewportController && viewportController.container ? viewportController.container : undefined;\r\n const scope = viewportController && viewportController.scope ? viewportController.scope : $rootScope;\r\n\r\n viewport.css({\r\n 'overflow-anchor': 'none',\r\n 'overflow-y': 'auto',\r\n 'display': 'block'\r\n });\r\n\r\n function bufferPadding() {\r\n return viewport.outerHeight() * padding; // some extra space to initiate preload\r\n }\r\n\r\n Object.assign(viewport, {\r\n getScope() {\r\n return scope;\r\n },\r\n\r\n createPaddingElements(template) {\r\n topPadding = new Padding(template);\r\n bottomPadding = new Padding(template);\r\n element.before(topPadding.element);\r\n element.after(bottomPadding.element);\r\n topPadding.height(0);\r\n bottomPadding.height(0);\r\n },\r\n\r\n applyContainerStyle() {\r\n if (!container) {\r\n return true;\r\n }\r\n if(container !== viewport) {\r\n viewport.css('height', window.getComputedStyle(container[0]).height);\r\n }\r\n return viewport.height() > 0;\r\n },\r\n\r\n bottomDataPos() {\r\n let scrollHeight = viewport[0].scrollHeight;\r\n scrollHeight = scrollHeight != null ? scrollHeight : viewport[0].document.documentElement.scrollHeight;\r\n return scrollHeight - bottomPadding.height();\r\n },\r\n\r\n topDataPos() {\r\n return topPadding.height();\r\n },\r\n\r\n bottomVisiblePos() {\r\n return viewport.scrollTop() + viewport.outerHeight();\r\n },\r\n\r\n topVisiblePos() {\r\n return viewport.scrollTop();\r\n },\r\n\r\n insertElement(e, sibling) {\r\n return elementRoutines.insertElement(e, sibling || topPadding.element);\r\n },\r\n\r\n insertElementAnimated(e, sibling) {\r\n return elementRoutines.insertElementAnimated(e, sibling || topPadding.element);\r\n },\r\n\r\n shouldLoadBottom() {\r\n return !buffer.eof && viewport.bottomDataPos() < viewport.bottomVisiblePos() + bufferPadding();\r\n },\r\n\r\n clipBottom() {\r\n // clip the invisible items off the bottom\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.bottomDataPos() - viewport.bottomVisiblePos() - bufferPadding();\r\n\r\n for (let i = buffer.length - 1; i >= 0; i--) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n bottomPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n buffer.eof = false;\r\n buffer.remove(buffer.length - overage, buffer.length);\r\n buffer.next -= overage;\r\n viewport.adjustPaddings();\r\n }\r\n },\r\n\r\n shouldLoadTop() {\r\n return !buffer.bof && (viewport.topDataPos() > viewport.topVisiblePos() - bufferPadding());\r\n },\r\n\r\n clipTop() {\r\n // clip the invisible items off the top\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.topVisiblePos() - viewport.topDataPos() - bufferPadding();\r\n\r\n for (let i = 0; i < buffer.length; i++) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n topPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n // we need to adjust top padding element before items are removed from top\r\n // to avoid strange behaviour of scroll bar during remove top items when we are at the very bottom\r\n topPadding.height(topPadding.height() + overageHeight);\r\n buffer.bof = false;\r\n buffer.remove(0, overage);\r\n buffer.first += overage;\r\n }\r\n },\r\n\r\n adjustPaddings() {\r\n if (!buffer.length) {\r\n return;\r\n }\r\n\r\n // precise heights calculation based on items that are in buffer or that were in buffer once\r\n const visibleItemsHeight = buffer.reduce((summ, item) => summ + item.element.outerHeight(true), 0);\r\n\r\n let topPaddingHeight = 0, topCount = 0;\r\n topPadding.cache.forEach(item => {\r\n if(item.index < buffer.first) {\r\n topPaddingHeight += item.height;\r\n topCount++;\r\n }\r\n });\r\n\r\n let bottomPaddingHeight = 0, bottomCount = 0;\r\n bottomPadding.cache.forEach(item => {\r\n if(item.index >= buffer.next) {\r\n bottomPaddingHeight += item.height;\r\n bottomCount++;\r\n }\r\n });\r\n\r\n const totalHeight = visibleItemsHeight + topPaddingHeight + bottomPaddingHeight;\r\n const averageItemHeight = totalHeight / (topCount + bottomCount + buffer.length);\r\n\r\n // average heights calculation, items that have never been reached\r\n let adjustTopPadding = buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser;\r\n let adjustBottomPadding = buffer.maxIndexUser !== null && buffer.maxIndex < buffer.maxIndexUser;\r\n let topPaddingHeightAdd = adjustTopPadding ? (buffer.minIndex - buffer.minIndexUser) * averageItemHeight : 0;\r\n let bottomPaddingHeightAdd = adjustBottomPadding ? (buffer.maxIndexUser - buffer.maxIndex) * averageItemHeight : 0;\r\n\r\n // paddings combine adjustment\r\n topPadding.height(topPaddingHeight + topPaddingHeightAdd);\r\n bottomPadding.height(bottomPaddingHeight + bottomPaddingHeightAdd);\r\n },\r\n\r\n onAfterMinIndexSet(topPaddingHeightOld) {\r\n // additional scrollTop adjustment in case of datasource.minIndex external set\r\n if (buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser) {\r\n let diff = topPadding.height() - topPaddingHeightOld;\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n while((diff -= viewport.scrollTop()) > 0) {\r\n bottomPadding.height(bottomPadding.height() + diff);\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n }\r\n }\r\n },\r\n\r\n onAfterPrepend(updates) {\r\n if (!updates.prepended.length)\r\n return;\r\n const height = buffer.effectiveHeight(updates.prepended);\r\n const paddingHeight = topPadding.height() - height;\r\n if (paddingHeight >= 0) {\r\n topPadding.height(paddingHeight);\r\n }\r\n else {\r\n topPadding.height(0);\r\n viewport.scrollTop(viewport.scrollTop() - paddingHeight);\r\n }\r\n },\r\n\r\n resetTopPadding() {\r\n topPadding.height(0);\r\n topPadding.cache.clear();\r\n },\r\n\r\n resetBottomPadding() {\r\n bottomPadding.height(0);\r\n bottomPadding.cache.clear();\r\n },\r\n\r\n removeCacheItem(item, isTop) {\r\n topPadding.cache.remove(item, isTop);\r\n bottomPadding.cache.remove(item, isTop);\r\n },\r\n\r\n removeItem(item) {\r\n this.removeCacheItem(item);\r\n return buffer.remove(item);\r\n }\r\n });\r\n\r\n return viewport;\r\n}\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/modules/viewport.js","// Can't just extend the Array, due to Babel does not support built-in classes extending\r\n// This solution was taken from https://stackoverflow.com/questions/46897414/es6-class-extends-array-workaround-for-es5-babel-transpile\r\nclass CacheProto {\r\n add(item) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === item.scope.$index) {\r\n this[i].height = item.element.outerHeight();\r\n return;\r\n }\r\n }\r\n this.push({\r\n index: item.scope.$index,\r\n height: item.element.outerHeight()\r\n });\r\n this.sort((a, b) => ((a.index < b.index) ? -1 : ((a.index > b.index) ? 1 : 0)));\r\n }\r\n\r\n remove(argument, _isTop) {\r\n const index = argument % 1 === 0 ? argument : argument.scope.$index;\r\n const isTop = argument % 1 === 0 ? _isTop : argument._op === 'isTop';\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === index) {\r\n this.splice(i, 1);\r\n break;\r\n }\r\n }\r\n if(!isTop) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index > index) {\r\n this[i].index--;\r\n }\r\n }\r\n }\r\n }\r\n\r\n clear() {\r\n this.length = 0;\r\n }\r\n}\r\n\r\nfunction Cache() {\r\n const instance = [];\r\n instance.push.apply(instance, arguments);\r\n Object.setPrototypeOf(instance, Cache.prototype);\r\n return instance;\r\n}\r\nCache.prototype = Object.create(Array.prototype);\r\nObject.getOwnPropertyNames(CacheProto.prototype).forEach(methodName =>\r\n Cache.prototype[methodName] = CacheProto.prototype[methodName]\r\n);\r\n\r\nfunction generateElement(template) {\r\n if(template.nodeType !== Node.ELEMENT_NODE) {\r\n throw new Error('ui-scroll directive requires an Element node for templating the view');\r\n }\r\n let element;\r\n switch (template.tagName.toLowerCase()) {\r\n case 'dl':\r\n throw new Error(`ui-scroll directive does not support <${template.tagName}> as a repeating tag: ${template.outerHTML}`);\r\n case 'tr':\r\n let table = angular.element('
    ');\r\n element = table.find('tr');\r\n break;\r\n case 'li':\r\n element = angular.element('
  • ');\r\n break;\r\n default:\r\n element = angular.element('
    ');\r\n }\r\n return element;\r\n}\r\n\r\nclass Padding {\r\n constructor(template) {\r\n this.element = generateElement(template);\r\n this.cache = new Cache();\r\n }\r\n\r\n height() {\r\n return this.element.height.apply(this.element, arguments);\r\n }\r\n}\r\n\r\nexport default Padding;\n\n\n// WEBPACK FOOTER //\n// ./src/modules/padding.js","class Adapter {\r\n\r\n constructor($scope, $parse, $attr, viewport, buffer, doAdjust, reload) {\r\n this.$parse = $parse;\r\n this.$attr = $attr;\r\n this.viewport = viewport;\r\n this.buffer = buffer;\r\n\r\n this.doAdjust = doAdjust;\r\n this.reload = reload;\r\n\r\n this.isLoading = false;\r\n this.disabled = false;\r\n\r\n const viewportScope = viewport.getScope();\r\n this.startScope = viewportScope.$parent ? viewportScope : $scope;\r\n\r\n this.publicContext = {};\r\n this.assignAdapter($attr.adapter);\r\n this.generatePublicContext();\r\n }\r\n\r\n assignAdapter(adapterAttr) {\r\n if (!adapterAttr || !(adapterAttr = adapterAttr.replace(/^\\s+|\\s+$/gm, ''))) {\r\n return;\r\n }\r\n let adapterOnScope;\r\n\r\n try {\r\n this.$parse(adapterAttr).assign(this.startScope, {});\r\n adapterOnScope = this.$parse(adapterAttr)(this.startScope);\r\n }\r\n catch (error) {\r\n error.message = `Angular ui-scroll Adapter assignment exception.\\n` +\r\n `Can't parse \"${adapterAttr}\" expression.\\n` +\r\n error.message;\r\n throw error;\r\n }\r\n\r\n Object.assign(adapterOnScope, this.publicContext);\r\n this.publicContext = adapterOnScope;\r\n }\r\n\r\n generatePublicContext() {\r\n // these methods will be accessible out of ui-scroll via user defined adapter\r\n const publicMethods = ['reload', 'applyUpdates', 'append', 'prepend', 'isBOF', 'isEOF', 'isEmpty'];\r\n for (let i = publicMethods.length - 1; i >= 0; i--) {\r\n this.publicContext[publicMethods[i]] = this[publicMethods[i]].bind(this);\r\n }\r\n\r\n // these read-only props will be accessible out of ui-scroll via user defined adapter\r\n const publicProps = ['isLoading', 'topVisible', 'topVisibleElement', 'topVisibleScope', 'bottomVisible', 'bottomVisibleElement', 'bottomVisibleScope'];\r\n for (let i = publicProps.length - 1; i >= 0; i--) {\r\n let property, attr = this.$attr[publicProps[i]];\r\n Object.defineProperty(this, publicProps[i], {\r\n get: () => property,\r\n set: (value) => {\r\n property = value;\r\n this.publicContext[publicProps[i]] = value;\r\n if (attr) {\r\n this.$parse(attr).assign(this.startScope, value);\r\n }\r\n }\r\n });\r\n }\r\n\r\n // non-read-only public property\r\n Object.defineProperty(this.publicContext, 'disabled', {\r\n get: () => this.disabled,\r\n set: (value) => (!(this.disabled = value)) ? this.doAdjust() : null\r\n });\r\n }\r\n\r\n loading(value) {\r\n this.isLoading = value;\r\n }\r\n\r\n isBOF() {\r\n return this.buffer.bof;\r\n }\r\n\r\n isEOF() {\r\n return this.buffer.eof;\r\n }\r\n\r\n isEmpty() {\r\n return !this.buffer.length;\r\n }\r\n\r\n append(newItems) {\r\n this.buffer.append(newItems);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n prepend(newItems) {\r\n this.buffer.prepend(newItems);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n applyUpdates(arg1, arg2) {\r\n if (typeof arg1 === 'function') {\r\n this.applyUpdatesFunc(arg1);\r\n } else {\r\n this.applyUpdatesIndex(arg1, arg2);\r\n }\r\n this.doAdjust();\r\n }\r\n\r\n applyUpdatesFunc(cb) {\r\n this.buffer.slice(0).forEach((wrapper) => {\r\n // we need to do it on the buffer clone, because buffer content\r\n // may change as we iterate through\r\n this.applyUpdate(wrapper, cb(wrapper.item, wrapper.scope, wrapper.element));\r\n });\r\n }\r\n\r\n applyUpdatesIndex(index, newItems) {\r\n if (index % 1 !== 0) {\r\n throw new Error('applyUpdates - ' + index + ' is not a valid index (should be an integer)');\r\n }\r\n const _index = index - this.buffer.first;\r\n\r\n // apply updates only within buffer\r\n if (_index >= 0 && _index < this.buffer.length) {\r\n this.applyUpdate(this.buffer[_index], newItems);\r\n }\r\n // out-of-buffer case: deletion may affect Paddings\r\n else if(index >= this.buffer.getAbsMinIndex() && index <= this.buffer.getAbsMaxIndex()) {\r\n if(Array.isArray(newItems) && !newItems.length) {\r\n this.viewport.removeCacheItem(index, index === this.buffer.minIndex);\r\n if(index === this.buffer.getAbsMinIndex()) {\r\n this.buffer.incrementMinIndex();\r\n }\r\n else {\r\n this.buffer.decrementMaxIndex();\r\n }\r\n }\r\n }\r\n }\r\n\r\n applyUpdate(wrapper, newItems) {\r\n if (!Array.isArray(newItems)) {\r\n return;\r\n }\r\n let position = this.buffer.indexOf(wrapper);\r\n if (!newItems.reverse().some(newItem => newItem === wrapper.item)) {\r\n wrapper.op = 'remove';\r\n if(position === 0 && !newItems.length) {\r\n wrapper._op = 'isTop'; // to catch \"first\" edge case on remove\r\n }\r\n }\r\n newItems.forEach((newItem) => {\r\n if (newItem === wrapper.item) {\r\n position--;\r\n } else {\r\n // 3 parameter (isTop) is to catch \"first\" edge case on insert\r\n this.buffer.insert(position + 1, newItem, position === -1);\r\n }\r\n });\r\n }\r\n\r\n calculateProperties() {\r\n let rowTop = null, topHeight = 0;\r\n let topDone = false, bottomDone = false;\r\n const length = this.buffer.length;\r\n\r\n for (let i = 0; i < length; i++) {\r\n const item = this.buffer[i];\r\n const itemTop = item.element.offset().top;\r\n\r\n if (rowTop !== itemTop) { // a new row condition\r\n const itemHeight = item.element.outerHeight(true);\r\n const top = this.viewport.topDataPos() + topHeight + itemHeight;\r\n\r\n if (!topDone && top > this.viewport.topVisiblePos()) {\r\n topDone = true;\r\n this['topVisible'] = item.item;\r\n this['topVisibleElement'] = item.element;\r\n this['topVisibleScope'] = item.scope;\r\n }\r\n if (!bottomDone && (top >= this.viewport.bottomVisiblePos() || (i === length - 1 && this.isEOF()))) {\r\n bottomDone = 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controllers[0];\n var bufferSize = Math.max(BUFFER_MIN, parseNumericAttr($attr.bufferSize, BUFFER_DEFAULT));\n var padding = Math.max(PADDING_MIN, parseNumericAttr($attr.padding, PADDING_DEFAULT));\n var startIndex = parseNumericAttr($attr.startIndex, 1);\n var ridActual = 0; // current data revision id\n var pending = [];\n\n var elementRoutines = new _elementRoutines2.default($injector, $q);\n var buffer = new _buffer2.default(elementRoutines, bufferSize, startIndex);\n var viewport = new _viewport2.default(elementRoutines, buffer, element, viewportController, $rootScope, padding);\n var adapter = new _adapter2.default($scope, $parse, $attr, viewport, buffer, doAdjust, reload);\n\n if (viewportController) {\n viewportController.adapter = adapter;\n }\n\n var isDatasourceValid = function isDatasourceValid() {\n return Object.prototype.toString.call(datasource) === '[object Object]' && typeof datasource.get === 'function';\n };\n\n datasource = $parse(datasourceName)($scope); // try to get datasource on scope\n if (!isDatasourceValid()) {\n datasource = $injector.get(datasourceName); // try to inject datasource as service\n if (!isDatasourceValid()) {\n throw new Error(datasourceName + ' is not a valid datasource');\n }\n }\n\n var onRenderHandlers = [];\n function onRenderHandlersRunner() {\n onRenderHandlers.forEach(function (handler) {\n return handler.run();\n });\n onRenderHandlers = [];\n }\n function persistDatasourceIndex(datasource, propName) {\n var getter = void 0;\n // need to postpone min/maxIndexUser processing if the view is empty\n if (Number.isInteger(datasource[propName])) {\n getter = datasource[propName];\n if (Number.isInteger(getter)) {\n onRenderHandlers = onRenderHandlers.filter(function (handler) {\n return handler.id !== propName;\n });\n onRenderHandlers.push({\n id: propName,\n run: function run() {\n return datasource[propName] = getter;\n }\n });\n }\n }\n }\n\n function defineDatasourceIndex(datasource, propName, propUserName) {\n var descriptor = Object.getOwnPropertyDescriptor(datasource, propName);\n if (descriptor && (descriptor.set || descriptor.get)) {\n return;\n }\n var getter = void 0;\n persistDatasourceIndex(datasource, propName);\n Object.defineProperty(datasource, propName, {\n set: function set(value) {\n getter = value;\n if (pending.length && !buffer.length) {\n persistDatasourceIndex(datasource, propName);\n return;\n }\n buffer[propUserName] = value;\n var topPaddingHeightOld = viewport.topDataPos();\n viewport.adjustPaddings();\n if (propName === 'minIndex') {\n viewport.onAfterMinIndexSet(topPaddingHeightOld);\n }\n },\n get: function get() {\n return getter;\n }\n });\n }\n\n defineDatasourceIndex(datasource, 'minIndex', 'minIndexUser');\n defineDatasourceIndex(datasource, 'maxIndex', 'maxIndexUser');\n\n var fetchNext = datasource.get.length !== 2 ? function (success) {\n return datasource.get(buffer.next, bufferSize, success);\n } : function (success) {\n datasource.get({\n index: buffer.next,\n append: buffer.length ? buffer[buffer.length - 1].item : void 0,\n count: bufferSize\n }, success);\n };\n\n var fetchPrevious = datasource.get.length !== 2 ? function (success) {\n return datasource.get(buffer.first - bufferSize, bufferSize, success);\n } : function (success) {\n datasource.get({\n index: buffer.first - bufferSize,\n prepend: buffer.length ? buffer[0].item : void 0,\n count: bufferSize\n }, success);\n };\n\n var initialize = function initialize() {\n var tryCount = 0;\n if (!viewport.applyContainerStyle()) {\n var timer = $interval(function () {\n tryCount++;\n if (viewport.applyContainerStyle()) {\n $interval.cancel(timer);\n doAdjust();\n }\n if (tryCount * VIEWPORT_POLLING_INTERVAL >= MAX_VIEWPORT_DELAY) {\n $interval.cancel(timer);\n throw Error('ui-scroll directive requires a viewport with non-zero height in ' + MAX_VIEWPORT_DELAY + 'ms');\n }\n }, VIEWPORT_POLLING_INTERVAL);\n } else {\n doAdjust();\n }\n };\n\n /**\n * Build padding elements\n *\n * Calling linker is the only way I found to get access to the tag name of the template\n * to prevent the directive scope from pollution a new scope is created and destroyed\n * right after the builder creation is completed\n */\n linker(function (clone, scope) {\n viewport.createPaddingElements(clone[0]);\n // we do not include the clone in the DOM. It means that the nested directives will not\n // be able to reach the parent directives, but in this case it is intentional because we\n // created the clone to access the template tag name\n scope.$destroy();\n clone.remove();\n });\n\n $scope.$on('$destroy', function () {\n unbindEvents();\n viewport.unbind('mousewheel', wheelHandler);\n });\n\n viewport.bind('mousewheel', wheelHandler);\n\n initialize();\n\n /* Private function definitions */\n\n function isInvalid(rid) {\n return rid && rid !== ridActual || $scope.$$destroyed;\n }\n\n function bindEvents() {\n viewport.bind('resize', resizeAndScrollHandler);\n viewport.bind('scroll', resizeAndScrollHandler);\n }\n\n function unbindEvents() {\n viewport.unbind('resize', resizeAndScrollHandler);\n viewport.unbind('scroll', resizeAndScrollHandler);\n }\n\n function reload() {\n viewport.resetTopPadding();\n viewport.resetBottomPadding();\n if (arguments.length) {\n startIndex = arguments[0];\n }\n buffer.reset(startIndex);\n persistDatasourceIndex(datasource, 'minIndex');\n persistDatasourceIndex(datasource, 'maxIndex');\n doAdjust();\n }\n\n function isElementVisible(wrapper) {\n return wrapper.element.height() && wrapper.element[0].offsetParent;\n }\n\n function visibilityWatcher(wrapper) {\n if (isElementVisible(wrapper)) {\n buffer.forEach(function (item) {\n if (typeof item.unregisterVisibilityWatcher === 'function') {\n item.unregisterVisibilityWatcher();\n delete item.unregisterVisibilityWatcher;\n }\n });\n if (!pending.length) {\n $timeout(function () {\n return doAdjust();\n });\n }\n }\n }\n\n function insertWrapperContent(wrapper, insertAfter) {\n createElement(wrapper, insertAfter, viewport.insertElement);\n if (!isElementVisible(wrapper)) {\n wrapper.unregisterVisibilityWatcher = wrapper.scope.$watch(function () {\n return visibilityWatcher(wrapper);\n });\n }\n elementRoutines.hideElement(wrapper); // hide inserted elements before data binding\n }\n\n function createElement(wrapper, insertAfter, insertElement) {\n var promises = null;\n var sibling = insertAfter > 0 ? buffer[insertAfter - 1].element : undefined;\n linker(function (clone, scope) {\n promises = insertElement(clone, sibling);\n wrapper.element = clone;\n wrapper.scope = scope;\n scope[itemName] = wrapper.item;\n });\n // ui-scroll-grid apply\n if (adapter.transform) {\n var tdInitializer = wrapper.scope.uiScrollTdInitializer;\n if (tdInitializer && tdInitializer.linking) {\n adapter.transform(wrapper.scope, wrapper.element);\n } else {\n wrapper.scope.uiScrollTdInitializer = {\n onLink: function onLink() {\n return adapter.transform(wrapper.scope, wrapper.element);\n },\n scope: wrapper.scope\n };\n }\n }\n return promises;\n }\n\n function updateDOM() {\n var promises = [];\n var toBePrepended = [];\n var toBeRemoved = [];\n var inserted = [];\n\n buffer.forEach(function (wrapper, i) {\n switch (wrapper.op) {\n case 'prepend':\n toBePrepended.unshift(wrapper);\n break;\n case 'append':\n insertWrapperContent(wrapper, i);\n wrapper.op = 'none';\n inserted.push(wrapper);\n break;\n case 'insert':\n promises = promises.concat(createElement(wrapper, i, viewport.insertElementAnimated));\n wrapper.op = 'none';\n inserted.push(wrapper);\n break;\n case 'remove':\n toBeRemoved.push(wrapper);\n }\n });\n\n toBeRemoved.forEach(function (wrapper) {\n return promises = promises.concat(viewport.removeItem(wrapper));\n });\n\n if (toBePrepended.length) toBePrepended.forEach(function (wrapper) {\n insertWrapperContent(wrapper);\n wrapper.op = 'none';\n });\n\n buffer.forEach(function (item, i) {\n return item.scope.$index = buffer.first + i;\n });\n\n return {\n prepended: toBePrepended,\n removed: toBeRemoved,\n inserted: inserted,\n animated: promises\n };\n }\n\n function updatePaddings(rid, updates) {\n // schedule another doAdjust after animation completion\n if (updates.animated.length) {\n $q.all(updates.animated).then(function () {\n viewport.adjustPaddings();\n doAdjust(rid);\n });\n } else {\n viewport.adjustPaddings();\n }\n }\n\n function enqueueFetch(rid, updates) {\n if (viewport.shouldLoadBottom()) {\n if (!updates || buffer.effectiveHeight(updates.inserted) > 0) {\n // this means that at least one item appended in the last batch has height > 0\n if (pending.push(true) === 1) {\n adapter.loading(true);\n fetch(rid);\n }\n }\n } else if (viewport.shouldLoadTop()) {\n if (!updates || buffer.effectiveHeight(updates.prepended) > 0 || pending[0]) {\n // this means that at least one item appended in the last batch has height > 0\n // pending[0] = true means that previous fetch was appending. We need to force at least one prepend\n // BTW there will always be at least 1 element in the pending array because bottom is fetched first\n if (pending.push(false) === 1) {\n adapter.loading(true);\n fetch(rid);\n }\n }\n }\n }\n\n function processUpdates() {\n var updates = updateDOM();\n\n // We need the item bindings to be processed before we can do adjustments\n !$scope.$$phase && !$rootScope.$$phase && $scope.$digest();\n\n updates.inserted.forEach(function (w) {\n return elementRoutines.showElement(w);\n });\n updates.prepended.forEach(function (w) {\n return elementRoutines.showElement(w);\n });\n return updates;\n }\n\n function doAdjust(rid) {\n if (!rid) {\n // dismiss pending requests\n pending = [];\n rid = ++ridActual;\n }\n\n var updates = processUpdates();\n\n if (isInvalid(rid)) {\n return;\n }\n\n updatePaddings(rid, updates);\n enqueueFetch(rid);\n\n if (!pending.length) {\n adapter.calculateProperties();\n }\n }\n\n function doAdjustAfterFetch(rid) {\n var updates = processUpdates();\n\n viewport.onAfterPrepend(updates);\n\n if (isInvalid(rid)) {\n return;\n }\n\n updatePaddings(rid, updates);\n onRenderHandlersRunner();\n enqueueFetch(rid, updates);\n pending.shift();\n\n if (pending.length) fetch(rid);else {\n adapter.loading(false);\n bindEvents();\n adapter.calculateProperties();\n }\n }\n\n function fetch(rid) {\n if (pending[0]) {\n // scrolling down\n if (buffer.length && !viewport.shouldLoadBottom()) {\n doAdjustAfterFetch(rid);\n } else {\n fetchNext(function (result) {\n if (isInvalid(rid)) {\n return;\n }\n\n if (result.length < bufferSize) {\n buffer.eof = true;\n }\n\n if (result.length > 0) {\n viewport.clipTop();\n buffer.append(result);\n }\n\n doAdjustAfterFetch(rid);\n });\n }\n } else {\n // scrolling up\n if (buffer.length && !viewport.shouldLoadTop()) {\n doAdjustAfterFetch(rid);\n } else {\n fetchPrevious(function (result) {\n if (isInvalid(rid)) {\n return;\n }\n\n if (result.length < bufferSize) {\n buffer.bof = true;\n // log 'bof is reached'\n }\n\n if (result.length > 0) {\n if (buffer.length) {\n viewport.clipBottom();\n }\n buffer.prepend(result);\n }\n\n doAdjustAfterFetch(rid);\n });\n }\n }\n }\n\n function resizeAndScrollHandler() {\n if (!$rootScope.$$phase && !adapter.isLoading && !adapter.disabled) {\n\n enqueueFetch(ridActual);\n\n if (pending.length) {\n unbindEvents();\n } else {\n adapter.calculateProperties();\n !$scope.$$phase && $scope.$digest();\n }\n }\n }\n\n function wheelHandler(event) {\n if (!adapter.disabled) {\n var scrollTop = viewport[0].scrollTop;\n var yMax = viewport[0].scrollHeight - viewport[0].clientHeight;\n\n if (scrollTop === 0 && !buffer.bof || scrollTop === yMax && !buffer.eof) {\n event.preventDefault();\n }\n }\n }\n }\n}]);\n\n/***/ }),\n/* 1 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\n\nvar _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"]) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError(\"Invalid attempt to destructure non-iterable instance\"); } }; }();\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\n/*!\r\n globals: angular, window\r\n List of used element methods available in JQuery but not in JQuery Lite\r\n element.before(elem)\r\n element.height()\r\n element.outerHeight(true)\r\n element.height(value) = only for Top/Bottom padding elements\r\n element.scrollTop()\r\n element.scrollTop(value)\r\n */\n\nvar JQLiteExtras = function () {\n function JQLiteExtras() {\n _classCallCheck(this, JQLiteExtras);\n }\n\n _createClass(JQLiteExtras, [{\n key: 'registerFor',\n value: function registerFor(element) {\n var convertToPx = void 0,\n css = void 0,\n getStyle = void 0,\n isWindow = void 0;\n // angular implementation blows up if elem is the window\n css = angular.element.prototype.css;\n\n element.prototype.css = function (name, value) {\n var self = this;\n var elem = self[0];\n if (!(!elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style)) {\n return css.call(self, name, value);\n }\n };\n\n // as defined in angularjs v1.0.5\n isWindow = function isWindow(obj) {\n return obj && obj.document && obj.location && obj.alert && obj.setInterval;\n };\n\n function scrollTo(self, direction, value) {\n var elem = self[0];\n\n var _top$left$direction = _slicedToArray({\n top: ['scrollTop', 'pageYOffset', 'scrollLeft'],\n left: ['scrollLeft', 'pageXOffset', 'scrollTop']\n }[direction], 3),\n method = _top$left$direction[0],\n prop = _top$left$direction[1],\n preserve = _top$left$direction[2];\n\n var isValueDefined = typeof value !== 'undefined';\n if (isWindow(elem)) {\n if (isValueDefined) {\n return elem.scrollTo(self[preserve].call(self), value);\n }\n return prop in elem ? elem[prop] : elem.document.documentElement[method];\n } else {\n if (isValueDefined) {\n elem[method] = value;\n }\n return elem[method];\n }\n }\n\n if (window.getComputedStyle) {\n getStyle = function getStyle(elem) {\n return window.getComputedStyle(elem, null);\n };\n convertToPx = function convertToPx(elem, value) {\n return parseFloat(value);\n };\n } else {\n getStyle = function getStyle(elem) {\n return elem.currentStyle;\n };\n convertToPx = function convertToPx(elem, value) {\n var left = void 0,\n result = void 0,\n rs = void 0,\n rsLeft = void 0,\n style = void 0;\n var core_pnum = /[+-]?(?:\\d*\\.|)\\d+(?:[eE][+-]?\\d+|)/.source;\n var rnumnonpx = new RegExp('^(' + core_pnum + ')(?!px)[a-z%]+$', 'i');\n\n if (!rnumnonpx.test(value)) {\n return parseFloat(value);\n }\n\n // ported from JQuery\n style = elem.style;\n left = style.left;\n rs = elem.runtimeStyle;\n rsLeft = rs && rs.left;\n if (rs) {\n rs.left = style.left;\n }\n // put in the new values to get a computed style out\n style.left = value;\n result = style.pixelLeft;\n style.left = left;\n if (rsLeft) {\n rs.left = rsLeft;\n }\n return result;\n };\n }\n\n function getMeasurements(elem, measure) {\n var base = void 0,\n borderA = void 0,\n borderB = void 0,\n computedMarginA = void 0,\n computedMarginB = void 0,\n computedStyle = void 0,\n dirA = void 0,\n dirB = void 0,\n marginA = void 0,\n marginB = void 0,\n paddingA = void 0,\n paddingB = void 0;\n\n if (isWindow(elem)) {\n base = document.documentElement[{ height: 'clientHeight', width: 'clientWidth' }[measure]];\n\n return {\n base: base,\n padding: 0,\n border: 0,\n margin: 0\n };\n }\n\n // Start with offset property\n\n var _width$height$measure = _slicedToArray({\n width: [elem.offsetWidth, 'Left', 'Right'],\n height: [elem.offsetHeight, 'Top', 'Bottom']\n }[measure], 3);\n\n base = _width$height$measure[0];\n dirA = _width$height$measure[1];\n dirB = _width$height$measure[2];\n\n\n computedStyle = getStyle(elem);\n paddingA = convertToPx(elem, computedStyle['padding' + dirA]) || 0;\n paddingB = convertToPx(elem, computedStyle['padding' + dirB]) || 0;\n borderA = convertToPx(elem, computedStyle['border' + dirA + 'Width']) || 0;\n borderB = convertToPx(elem, computedStyle['border' + dirB + 'Width']) || 0;\n computedMarginA = computedStyle['margin' + dirA];\n computedMarginB = computedStyle['margin' + dirB];\n\n // I do not care for width for now, so this hack is irrelevant\n // if ( !supportsPercentMargin )\n // computedMarginA = hackPercentMargin( elem, computedStyle, computedMarginA )\n // computedMarginB = hackPercentMargin( elem, computedStyle, computedMarginB )\n marginA = convertToPx(elem, computedMarginA) || 0;\n marginB = convertToPx(elem, computedMarginB) || 0;\n\n return {\n base: base,\n padding: paddingA + paddingB,\n border: borderA + borderB,\n margin: marginA + marginB\n };\n }\n\n function getWidthHeight(elem, direction, measure) {\n var computedStyle = void 0,\n result = void 0;\n\n var measurements = getMeasurements(elem, direction);\n\n if (measurements.base > 0) {\n return {\n base: measurements.base - measurements.padding - measurements.border,\n outer: measurements.base,\n outerfull: measurements.base + measurements.margin\n }[measure];\n }\n\n // Fall back to computed then uncomputed css if necessary\n computedStyle = getStyle(elem);\n result = computedStyle[direction];\n\n if (result < 0 || result === null) {\n result = elem.style[direction] || 0;\n }\n\n // Normalize \"\", auto, and prepare for extra\n result = parseFloat(result) || 0;\n\n return {\n base: result - measurements.padding - measurements.border,\n outer: result,\n outerfull: result + measurements.padding + measurements.border + measurements.margin\n }[measure];\n }\n\n // define missing methods\n return angular.forEach({\n before: function before(newElem) {\n var children, elem, i, j, parent, ref, self;\n self = this;\n elem = self[0];\n parent = self.parent();\n children = parent.contents();\n if (children[0] === elem) {\n return parent.prepend(newElem);\n } else {\n for (i = j = 1, ref = children.length - 1; 1 <= ref ? j <= ref : j >= ref; i = 1 <= ref ? ++j : --j) {\n if (children[i] === elem) {\n angular.element(children[i - 1]).after(newElem);\n return;\n }\n }\n throw new Error('invalid DOM structure ' + elem.outerHTML);\n }\n },\n height: function height(value) {\n var self;\n self = this;\n if (typeof value !== 'undefined') {\n if (Number.isInteger(value)) {\n value = value + 'px';\n }\n return css.call(self, 'height', value);\n } else {\n return getWidthHeight(this[0], 'height', 'base');\n }\n },\n outerHeight: function outerHeight(option) {\n return getWidthHeight(this[0], 'height', option ? 'outerfull' : 'outer');\n },\n outerWidth: function outerWidth(option) {\n return getWidthHeight(this[0], 'width', option ? 'outerfull' : 'outer');\n },\n\n\n /*\r\n The offset setter method is not implemented\r\n */\n offset: function offset(value) {\n var docElem = void 0,\n win = void 0;\n var self = this;\n var box = {\n top: 0,\n left: 0\n };\n var elem = self[0];\n var doc = elem && elem.ownerDocument;\n\n if (arguments.length) {\n if (value === undefined) {\n return self;\n }\n // TODO: implement setter\n throw new Error('offset setter method is not implemented');\n }\n\n if (!doc) {\n return;\n }\n\n docElem = doc.documentElement;\n\n // TODO: Make sure it's not a disconnected DOM node\n\n if (elem.getBoundingClientRect != null) {\n box = elem.getBoundingClientRect();\n }\n\n win = doc.defaultView || doc.parentWindow;\n\n return {\n top: box.top + (win.pageYOffset || docElem.scrollTop) - (docElem.clientTop || 0),\n left: box.left + (win.pageXOffset || docElem.scrollLeft) - (docElem.clientLeft || 0)\n };\n },\n scrollTop: function scrollTop(value) {\n return scrollTo(this, 'top', value);\n },\n scrollLeft: function scrollLeft(value) {\n return scrollTo(this, 'left', value);\n }\n }, function (value, key) {\n if (!element.prototype[key]) {\n return element.prototype[key] = value;\n }\n });\n }\n }]);\n\n return JQLiteExtras;\n}();\n\nexports.default = JQLiteExtras;\n\n/***/ }),\n/* 2 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nvar hideClassToken = 'ng-ui-scroll-hide';\n\nvar ElementRoutines = function () {\n _createClass(ElementRoutines, null, [{\n key: 'addCSSRules',\n value: function addCSSRules() {\n var selector = '.' + hideClassToken;\n var rules = 'display: none';\n var sheet = document.styleSheets[0];\n var index = void 0;\n try {\n index = sheet.cssRules.length;\n } catch (err) {\n index = 0;\n }\n if ('insertRule' in sheet) {\n sheet.insertRule(selector + '{' + rules + '}', index);\n } else if ('addRule' in sheet) {\n sheet.addRule(selector, rules, index);\n }\n }\n }]);\n\n function ElementRoutines($injector, $q) {\n _classCallCheck(this, ElementRoutines);\n\n this.$animate = $injector.has && $injector.has('$animate') ? $injector.get('$animate') : null;\n this.isAngularVersionLessThen1_3 = angular.version.major === 1 && angular.version.minor < 3;\n this.$q = $q;\n }\n\n _createClass(ElementRoutines, [{\n key: 'hideElement',\n value: function hideElement(wrapper) {\n wrapper.element.addClass(hideClassToken);\n }\n }, {\n key: 'showElement',\n value: function showElement(wrapper) {\n wrapper.element.removeClass(hideClassToken);\n }\n }, {\n key: 'insertElement',\n value: function insertElement(newElement, previousElement) {\n previousElement.after(newElement);\n return [];\n }\n }, {\n key: 'removeElement',\n value: function removeElement(wrapper) {\n wrapper.element.remove();\n wrapper.scope.$destroy();\n return [];\n }\n }, {\n key: 'insertElementAnimated',\n value: function insertElementAnimated(newElement, previousElement) {\n if (!this.$animate) {\n return this.insertElement(newElement, previousElement);\n }\n\n if (this.isAngularVersionLessThen1_3) {\n var deferred = this.$q.defer();\n // no need for parent - previous element is never null\n this.$animate.enter(newElement, null, previousElement, function () {\n return deferred.resolve();\n });\n\n return [deferred.promise];\n }\n\n // no need for parent - previous element is never null\n return [this.$animate.enter(newElement, null, previousElement)];\n }\n }, {\n key: 'removeElementAnimated',\n value: function removeElementAnimated(wrapper) {\n if (!this.$animate) {\n return this.removeElement(wrapper);\n }\n\n if (this.isAngularVersionLessThen1_3) {\n var deferred = this.$q.defer();\n this.$animate.leave(wrapper.element, function () {\n wrapper.scope.$destroy();\n return deferred.resolve();\n });\n\n return [deferred.promise];\n }\n\n return [this.$animate.leave(wrapper.element).then(function () {\n return wrapper.scope.$destroy();\n })];\n }\n }]);\n\n return ElementRoutines;\n}();\n\nexports.default = ElementRoutines;\n\n/***/ }),\n/* 3 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.default = ScrollBuffer;\nfunction ScrollBuffer(elementRoutines, bufferSize, startIndex) {\n var buffer = Object.create(Array.prototype);\n\n Object.assign(buffer, {\n size: bufferSize,\n\n reset: function reset(startIndex) {\n buffer.remove(0, buffer.length);\n buffer.eof = false;\n buffer.bof = false;\n buffer.first = startIndex;\n buffer.next = startIndex;\n buffer.minIndex = startIndex;\n buffer.maxIndex = startIndex;\n buffer.minIndexUser = null;\n buffer.maxIndexUser = null;\n },\n append: function append(items) {\n items.forEach(function (item) {\n ++buffer.next;\n buffer.insert('append', item);\n });\n buffer.maxIndex = buffer.eof ? buffer.next - 1 : Math.max(buffer.next - 1, buffer.maxIndex);\n },\n prepend: function prepend(items) {\n items.reverse().forEach(function (item) {\n --buffer.first;\n buffer.insert('prepend', item);\n });\n buffer.minIndex = buffer.bof ? buffer.minIndex = buffer.first : Math.min(buffer.first, buffer.minIndex);\n },\n\n\n /**\r\n * inserts wrapped element in the buffer\r\n * the first argument is either operation keyword (see below) or a number for operation 'insert'\r\n * for insert the number is the index for the buffer element the new one have to be inserted after\r\n * operations: 'append', 'prepend', 'insert', 'remove', 'update', 'none'\r\n */\n insert: function insert(operation, item, isTop) {\n var wrapper = {\n item: item\n };\n\n if (operation % 1 === 0) {\n // it is an insert\n wrapper.op = 'insert';\n buffer.splice(operation, 0, wrapper);\n if (isTop) {\n buffer.first--;\n } else {\n buffer.next++;\n }\n } else {\n wrapper.op = operation;\n switch (operation) {\n case 'append':\n buffer.push(wrapper);\n break;\n case 'prepend':\n buffer.unshift(wrapper);\n break;\n }\n }\n },\n\n\n // removes elements from buffer\n remove: function remove(arg1, arg2) {\n if (Number.isInteger(arg1)) {\n // removes items from arg1 (including) through arg2 (excluding)\n for (var i = arg1; i < arg2; i++) {\n elementRoutines.removeElement(buffer[i]);\n }\n return buffer.splice(arg1, arg2 - arg1);\n }\n // removes single item(wrapper) from the buffer\n buffer.splice(buffer.indexOf(arg1), 1);\n if (arg1._op === 'isTop' && buffer.first === this.getAbsMinIndex()) {\n this.incrementMinIndex();\n } else {\n this.decrementMaxIndex();\n }\n if (arg1._op === 'isTop') {\n buffer.first++;\n } else {\n buffer.next--;\n }\n if (!buffer.length) {\n buffer.first = 1;\n buffer.next = 1;\n }\n\n return elementRoutines.removeElementAnimated(arg1);\n },\n incrementMinIndex: function incrementMinIndex() {\n if (buffer.minIndexUser !== null) {\n if (buffer.minIndex > buffer.minIndexUser) {\n buffer.minIndexUser++;\n return;\n }\n if (buffer.minIndex === buffer.minIndexUser) {\n buffer.minIndexUser++;\n }\n }\n buffer.minIndex++;\n },\n decrementMaxIndex: function decrementMaxIndex() {\n if (buffer.maxIndexUser !== null && buffer.maxIndex <= buffer.maxIndexUser) {\n buffer.maxIndexUser--;\n }\n buffer.maxIndex--;\n },\n getAbsMinIndex: function getAbsMinIndex() {\n if (buffer.minIndexUser !== null) {\n return Math.min(buffer.minIndexUser, buffer.minIndex);\n }\n return buffer.minIndex;\n },\n getAbsMaxIndex: function getAbsMaxIndex() {\n if (buffer.maxIndexUser !== null) {\n return Math.max(buffer.maxIndexUser, buffer.maxIndex);\n }\n return buffer.maxIndex;\n },\n effectiveHeight: function effectiveHeight(elements) {\n if (!elements.length) {\n return 0;\n }\n var top = Number.MAX_VALUE;\n var bottom = Number.NEGATIVE_INFINITY;\n elements.forEach(function (wrapper) {\n if (wrapper.element[0].offsetParent) {\n // element style is not display:none\n top = Math.min(top, wrapper.element.offset().top);\n bottom = Math.max(bottom, wrapper.element.offset().top + wrapper.element.outerHeight(true));\n }\n });\n return Math.max(0, bottom - top);\n }\n });\n\n buffer.reset(startIndex);\n\n return buffer;\n}\n\n/***/ }),\n/* 4 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.default = Viewport;\n\nvar _padding = __webpack_require__(5);\n\nvar _padding2 = _interopRequireDefault(_padding);\n\nfunction _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }\n\nfunction Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding) {\n var topPadding = null;\n var bottomPadding = null;\n var viewport = viewportController && viewportController.viewport ? viewportController.viewport : angular.element(window);\n var container = viewportController && viewportController.container ? viewportController.container : undefined;\n var scope = viewportController && viewportController.scope ? viewportController.scope : $rootScope;\n\n viewport.css({\n 'overflow-anchor': 'none',\n 'overflow-y': 'auto',\n 'display': 'block'\n });\n\n function bufferPadding() {\n return viewport.outerHeight() * padding; // some extra space to initiate preload\n }\n\n Object.assign(viewport, {\n getScope: function getScope() {\n return scope;\n },\n createPaddingElements: function createPaddingElements(template) {\n topPadding = new _padding2.default(template);\n bottomPadding = new _padding2.default(template);\n element.before(topPadding.element);\n element.after(bottomPadding.element);\n topPadding.height(0);\n bottomPadding.height(0);\n },\n applyContainerStyle: function applyContainerStyle() {\n if (!container) {\n return true;\n }\n if (container !== viewport) {\n viewport.css('height', window.getComputedStyle(container[0]).height);\n }\n return viewport.height() > 0;\n },\n bottomDataPos: function bottomDataPos() {\n var scrollHeight = viewport[0].scrollHeight;\n scrollHeight = scrollHeight != null ? scrollHeight : viewport[0].document.documentElement.scrollHeight;\n return scrollHeight - bottomPadding.height();\n },\n topDataPos: function topDataPos() {\n return topPadding.height();\n },\n bottomVisiblePos: function bottomVisiblePos() {\n return viewport.scrollTop() + viewport.outerHeight();\n },\n topVisiblePos: function topVisiblePos() {\n return viewport.scrollTop();\n },\n insertElement: function insertElement(e, sibling) {\n return elementRoutines.insertElement(e, sibling || topPadding.element);\n },\n insertElementAnimated: function insertElementAnimated(e, sibling) {\n return elementRoutines.insertElementAnimated(e, sibling || topPadding.element);\n },\n shouldLoadBottom: function shouldLoadBottom() {\n return !buffer.eof && viewport.bottomDataPos() < viewport.bottomVisiblePos() + bufferPadding();\n },\n clipBottom: function clipBottom() {\n // clip the invisible items off the bottom\n var overage = 0;\n var overageHeight = 0;\n var itemHeight = 0;\n var emptySpaceHeight = viewport.bottomDataPos() - viewport.bottomVisiblePos() - bufferPadding();\n\n for (var i = buffer.length - 1; i >= 0; i--) {\n itemHeight = buffer[i].element.outerHeight(true);\n if (overageHeight + itemHeight > emptySpaceHeight) {\n break;\n }\n bottomPadding.cache.add(buffer[i]);\n overageHeight += itemHeight;\n overage++;\n }\n\n if (overage > 0) {\n buffer.eof = false;\n buffer.remove(buffer.length - overage, buffer.length);\n buffer.next -= overage;\n viewport.adjustPaddings();\n }\n },\n shouldLoadTop: function shouldLoadTop() {\n return !buffer.bof && viewport.topDataPos() > viewport.topVisiblePos() - bufferPadding();\n },\n clipTop: function clipTop() {\n // clip the invisible items off the top\n var overage = 0;\n var overageHeight = 0;\n var itemHeight = 0;\n var emptySpaceHeight = viewport.topVisiblePos() - viewport.topDataPos() - bufferPadding();\n\n for (var i = 0; i < buffer.length; i++) {\n itemHeight = buffer[i].element.outerHeight(true);\n if (overageHeight + itemHeight > emptySpaceHeight) {\n break;\n }\n topPadding.cache.add(buffer[i]);\n overageHeight += itemHeight;\n overage++;\n }\n\n if (overage > 0) {\n // we need to adjust top padding element before items are removed from top\n // to avoid strange behaviour of scroll bar during remove top items when we are at the very bottom\n topPadding.height(topPadding.height() + overageHeight);\n buffer.bof = false;\n buffer.remove(0, overage);\n buffer.first += overage;\n }\n },\n adjustPaddings: function adjustPaddings() {\n if (!buffer.length) {\n return;\n }\n\n // precise heights calculation based on items that are in buffer or that were in buffer once\n var visibleItemsHeight = buffer.reduce(function (summ, item) {\n return summ + item.element.outerHeight(true);\n }, 0);\n\n var topPaddingHeight = 0,\n topCount = 0;\n topPadding.cache.forEach(function (item) {\n if (item.index < buffer.first) {\n topPaddingHeight += item.height;\n topCount++;\n }\n });\n\n var bottomPaddingHeight = 0,\n bottomCount = 0;\n bottomPadding.cache.forEach(function (item) {\n if (item.index >= buffer.next) {\n bottomPaddingHeight += item.height;\n bottomCount++;\n }\n });\n\n var totalHeight = visibleItemsHeight + topPaddingHeight + bottomPaddingHeight;\n var averageItemHeight = totalHeight / (topCount + bottomCount + buffer.length);\n\n // average heights calculation, items that have never been reached\n var adjustTopPadding = buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser;\n var adjustBottomPadding = buffer.maxIndexUser !== null && buffer.maxIndex < buffer.maxIndexUser;\n var topPaddingHeightAdd = adjustTopPadding ? (buffer.minIndex - buffer.minIndexUser) * averageItemHeight : 0;\n var bottomPaddingHeightAdd = adjustBottomPadding ? (buffer.maxIndexUser - buffer.maxIndex) * averageItemHeight : 0;\n\n // paddings combine adjustment\n topPadding.height(topPaddingHeight + topPaddingHeightAdd);\n bottomPadding.height(bottomPaddingHeight + bottomPaddingHeightAdd);\n },\n onAfterMinIndexSet: function onAfterMinIndexSet(topPaddingHeightOld) {\n // additional scrollTop adjustment in case of datasource.minIndex external set\n if (buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser) {\n var diff = topPadding.height() - topPaddingHeightOld;\n viewport.scrollTop(viewport.scrollTop() + diff);\n while ((diff -= viewport.scrollTop()) > 0) {\n bottomPadding.height(bottomPadding.height() + diff);\n viewport.scrollTop(viewport.scrollTop() + diff);\n }\n }\n },\n onAfterPrepend: function onAfterPrepend(updates) {\n if (!updates.prepended.length) return;\n var height = buffer.effectiveHeight(updates.prepended);\n var paddingHeight = topPadding.height() - height;\n if (paddingHeight >= 0) {\n topPadding.height(paddingHeight);\n } else {\n topPadding.height(0);\n viewport.scrollTop(viewport.scrollTop() - paddingHeight);\n }\n },\n resetTopPadding: function resetTopPadding() {\n topPadding.height(0);\n topPadding.cache.clear();\n },\n resetBottomPadding: function resetBottomPadding() {\n bottomPadding.height(0);\n bottomPadding.cache.clear();\n },\n removeCacheItem: function removeCacheItem(item, isTop) {\n topPadding.cache.remove(item, isTop);\n bottomPadding.cache.remove(item, isTop);\n },\n removeItem: function removeItem(item) {\n this.removeCacheItem(item);\n return buffer.remove(item);\n }\n });\n\n return viewport;\n}\n\n/***/ }),\n/* 5 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\n// Can't just extend the Array, due to Babel does not support built-in classes extending\n// This solution was taken from https://stackoverflow.com/questions/46897414/es6-class-extends-array-workaround-for-es5-babel-transpile\nvar CacheProto = function () {\n function CacheProto() {\n _classCallCheck(this, CacheProto);\n }\n\n _createClass(CacheProto, [{\n key: 'add',\n value: function add(item) {\n for (var i = this.length - 1; i >= 0; i--) {\n if (this[i].index === item.scope.$index) {\n this[i].height = item.element.outerHeight();\n return;\n }\n }\n this.push({\n index: item.scope.$index,\n height: item.element.outerHeight()\n });\n this.sort(function (a, b) {\n return a.index < b.index ? -1 : a.index > b.index ? 1 : 0;\n });\n }\n }, {\n key: 'remove',\n value: function remove(argument, _isTop) {\n var index = argument % 1 === 0 ? argument : argument.scope.$index;\n var isTop = argument % 1 === 0 ? _isTop : argument._op === 'isTop';\n for (var i = this.length - 1; i >= 0; i--) {\n if (this[i].index === index) {\n this.splice(i, 1);\n break;\n }\n }\n if (!isTop) {\n for (var _i = this.length - 1; _i >= 0; _i--) {\n if (this[_i].index > index) {\n this[_i].index--;\n }\n }\n }\n }\n }, {\n key: 'clear',\n value: function clear() {\n this.length = 0;\n }\n }]);\n\n return CacheProto;\n}();\n\nfunction Cache() {\n var instance = [];\n instance.push.apply(instance, arguments);\n Object.setPrototypeOf(instance, Cache.prototype);\n return instance;\n}\nCache.prototype = Object.create(Array.prototype);\nObject.getOwnPropertyNames(CacheProto.prototype).forEach(function (methodName) {\n return Cache.prototype[methodName] = CacheProto.prototype[methodName];\n});\n\nfunction generateElement(template) {\n if (template.nodeType !== Node.ELEMENT_NODE) {\n throw new Error('ui-scroll directive requires an Element node for templating the view');\n }\n var element = void 0;\n switch (template.tagName.toLowerCase()) {\n case 'dl':\n throw new Error('ui-scroll directive does not support <' + template.tagName + '> as a repeating tag: ' + template.outerHTML);\n case 'tr':\n var table = angular.element('
    ');\n element = table.find('tr');\n break;\n case 'li':\n element = angular.element('
  • ');\n break;\n default:\n element = angular.element('
    ');\n }\n return element;\n}\n\nvar Padding = function () {\n function Padding(template) {\n _classCallCheck(this, Padding);\n\n this.element = generateElement(template);\n this.cache = new Cache();\n }\n\n _createClass(Padding, [{\n key: 'height',\n value: function height() {\n return this.element.height.apply(this.element, arguments);\n }\n }]);\n\n return Padding;\n}();\n\nexports.default = Padding;\n\n/***/ }),\n/* 6 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\n\nvar _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nvar Adapter = function () {\n function Adapter($scope, $parse, $attr, viewport, buffer, doAdjust, reload) {\n _classCallCheck(this, Adapter);\n\n this.$parse = $parse;\n this.$attr = $attr;\n this.viewport = viewport;\n this.buffer = buffer;\n\n this.doAdjust = doAdjust;\n this.reload = reload;\n\n this.isLoading = false;\n this.disabled = false;\n\n var viewportScope = viewport.getScope();\n this.startScope = viewportScope.$parent ? viewportScope : $scope;\n\n this.publicContext = {};\n this.assignAdapter($attr.adapter);\n this.generatePublicContext();\n }\n\n _createClass(Adapter, [{\n key: 'assignAdapter',\n value: function assignAdapter(adapterAttr) {\n if (!adapterAttr || !(adapterAttr = adapterAttr.replace(/^\\s+|\\s+$/gm, ''))) {\n return;\n }\n var adapterOnScope = void 0;\n\n try {\n this.$parse(adapterAttr).assign(this.startScope, {});\n adapterOnScope = this.$parse(adapterAttr)(this.startScope);\n } catch (error) {\n error.message = 'Angular ui-scroll Adapter assignment exception.\\n' + ('Can\\'t parse \"' + adapterAttr + '\" expression.\\n') + error.message;\n throw error;\n }\n\n Object.assign(adapterOnScope, this.publicContext);\n this.publicContext = adapterOnScope;\n }\n }, {\n key: 'generatePublicContext',\n value: function generatePublicContext() {\n var _this = this;\n\n // these methods will be accessible out of ui-scroll via user defined adapter\n var publicMethods = ['reload', 'applyUpdates', 'append', 'prepend', 'isBOF', 'isEOF', 'isEmpty'];\n for (var i = publicMethods.length - 1; i >= 0; i--) {\n this.publicContext[publicMethods[i]] = this[publicMethods[i]].bind(this);\n }\n\n // these read-only props will be accessible out of ui-scroll via user defined adapter\n var publicProps = ['isLoading', 'topVisible', 'topVisibleElement', 'topVisibleScope', 'bottomVisible', 'bottomVisibleElement', 'bottomVisibleScope'];\n\n var _loop = function _loop(_i) {\n var property = void 0,\n attr = _this.$attr[publicProps[_i]];\n Object.defineProperty(_this, publicProps[_i], {\n get: function get() {\n return property;\n },\n set: function set(value) {\n property = value;\n _this.publicContext[publicProps[_i]] = value;\n if (attr) {\n _this.$parse(attr).assign(_this.startScope, value);\n }\n }\n });\n };\n\n for (var _i = publicProps.length - 1; _i >= 0; _i--) {\n _loop(_i);\n }\n\n // non-read-only public property\n Object.defineProperty(this.publicContext, 'disabled', {\n get: function get() {\n return _this.disabled;\n },\n set: function set(value) {\n return !(_this.disabled = value) ? _this.doAdjust() : null;\n }\n });\n }\n }, {\n key: 'loading',\n value: function loading(value) {\n this.isLoading = value;\n }\n }, {\n key: 'isBOF',\n value: function isBOF() {\n return this.buffer.bof;\n }\n }, {\n key: 'isEOF',\n value: function isEOF() {\n return this.buffer.eof;\n }\n }, {\n key: 'isEmpty',\n value: function isEmpty() {\n return !this.buffer.length;\n }\n }, {\n key: 'append',\n value: function append(newItems) {\n this.buffer.append(newItems);\n this.doAdjust();\n this.viewport.clipTop();\n this.viewport.clipBottom();\n }\n }, {\n key: 'prepend',\n value: function prepend(newItems) {\n this.buffer.prepend(newItems);\n this.doAdjust();\n this.viewport.clipTop();\n this.viewport.clipBottom();\n }\n }, {\n key: 'applyUpdates',\n value: function applyUpdates(arg1, arg2) {\n if (typeof arg1 === 'function') {\n this.applyUpdatesFunc(arg1);\n } else {\n this.applyUpdatesIndex(arg1, arg2);\n }\n this.doAdjust();\n }\n }, {\n key: 'applyUpdatesFunc',\n value: function applyUpdatesFunc(cb) {\n var _this2 = this;\n\n this.buffer.slice(0).forEach(function (wrapper) {\n // we need to do it on the buffer clone, because buffer content\n // may change as we iterate through\n _this2.applyUpdate(wrapper, cb(wrapper.item, wrapper.scope, wrapper.element));\n });\n }\n }, {\n key: 'applyUpdatesIndex',\n value: function applyUpdatesIndex(index, newItems) {\n if (index % 1 !== 0) {\n throw new Error('applyUpdates - ' + index + ' is not a valid index (should be an integer)');\n }\n var _index = index - this.buffer.first;\n\n // apply updates only within buffer\n if (_index >= 0 && _index < this.buffer.length) {\n this.applyUpdate(this.buffer[_index], newItems);\n }\n // out-of-buffer case: deletion may affect Paddings\n else if (index >= this.buffer.getAbsMinIndex() && index <= this.buffer.getAbsMaxIndex()) {\n if (Array.isArray(newItems) && !newItems.length) {\n this.viewport.removeCacheItem(index, index === this.buffer.minIndex);\n if (index === this.buffer.getAbsMinIndex()) {\n this.buffer.incrementMinIndex();\n } else {\n this.buffer.decrementMaxIndex();\n }\n }\n }\n }\n }, {\n key: 'applyUpdate',\n value: function applyUpdate(wrapper, newItems) {\n var _this3 = this;\n\n if (!Array.isArray(newItems)) {\n return;\n }\n var position = this.buffer.indexOf(wrapper);\n if (!newItems.reverse().some(function (newItem) {\n return newItem === wrapper.item;\n })) {\n wrapper.op = 'remove';\n if (position === 0 && !newItems.length) {\n wrapper._op = 'isTop'; // to catch \"first\" edge case on remove\n }\n }\n newItems.forEach(function (newItem) {\n if (newItem === wrapper.item) {\n position--;\n } else {\n // 3 parameter (isTop) is to catch \"first\" edge case on insert\n _this3.buffer.insert(position + 1, newItem, position === -1);\n }\n });\n }\n }, {\n key: 'calculateProperties',\n value: function calculateProperties() {\n var rowTop = null,\n topHeight = 0;\n var topDone = false,\n bottomDone = false;\n var length = this.buffer.length;\n\n for (var i = 0; i < length; i++) {\n var item = this.buffer[i];\n var itemTop = item.element.offset().top;\n\n if (rowTop !== itemTop) {\n // a new row condition\n var itemHeight = item.element.outerHeight(true);\n var top = this.viewport.topDataPos() + topHeight + itemHeight;\n\n if (!topDone && top > this.viewport.topVisiblePos()) {\n topDone = true;\n this['topVisible'] = item.item;\n this['topVisibleElement'] = item.element;\n this['topVisibleScope'] = item.scope;\n }\n if (!bottomDone && (top >= this.viewport.bottomVisiblePos() || i === length - 1 && this.isEOF())) {\n bottomDone = true;\n this['bottomVisible'] = item.item;\n this['bottomVisibleElement'] = item.element;\n this['bottomVisibleScope'] = item.scope;\n }\n topHeight += itemHeight;\n }\n rowTop = itemTop;\n\n if (topDone && bottomDone) {\n break;\n }\n }\n }\n }]);\n\n return Adapter;\n}();\n\nexports.default = Adapter;\n\n/***/ })\n/******/ ]);\n\n\n// WEBPACK FOOTER //\n// ui-scroll.min.js"," \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId]) {\n \t\t\treturn installedModules[moduleId].exports;\n \t\t}\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\ti: moduleId,\n \t\t\tl: false,\n \t\t\texports: {}\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.l = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// define getter function for harmony exports\n \t__webpack_require__.d = function(exports, name, getter) {\n \t\tif(!__webpack_require__.o(exports, name)) {\n \t\t\tObject.defineProperty(exports, name, {\n \t\t\t\tconfigurable: false,\n \t\t\t\tenumerable: true,\n \t\t\t\tget: getter\n \t\t\t});\n \t\t}\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = 0);\n\n\n\n// WEBPACK FOOTER //\n// webpack/bootstrap f32df6d97ca6583cfb5d","import JQLiteExtras from './modules/jqLiteExtras';\nimport ElementRoutines from './modules/elementRoutines.js';\nimport ScrollBuffer from './modules/buffer.js';\nimport Viewport from './modules/viewport.js';\nimport Adapter from './modules/adapter.js';\n\nangular.module('ui.scroll', [])\n\n .constant('JQLiteExtras', JQLiteExtras)\n .run(['JQLiteExtras', (JQLiteExtras) => {\n !window.jQuery ? (new JQLiteExtras()).registerFor(angular.element) : null;\n ElementRoutines.addCSSRules();\n }])\n\n .directive('uiScrollViewport', function () {\n return {\n restrict: 'A',\n controller: [\n '$scope',\n '$element',\n function (scope, element) {\n this.container = element;\n this.viewport = element;\n this.scope = scope;\n\n angular.forEach(element.children(), child => {\n if (child.tagName.toLowerCase() === 'tbody') {\n this.viewport = angular.element(child);\n }\n });\n\n return this;\n }\n ]\n };\n })\n\n .directive('uiScroll', [\n '$log',\n '$injector',\n '$rootScope',\n '$timeout',\n '$interval',\n '$q',\n '$parse',\n function (console, $injector, $rootScope, $timeout, $interval, $q, $parse) {\n\n return {\n require: ['?^uiScrollViewport'],\n restrict: 'A',\n transclude: 'element',\n priority: 1000,\n terminal: true,\n link: link\n };\n\n function link($scope, element, $attr, controllers, linker) {\n const match = $attr.uiScroll.match(/^\\s*(\\w+)\\s+in\\s+([(\\w|\\$)\\.]+)\\s*$/);\n if (!match) {\n throw new Error('Expected uiScroll in form of \\'_item_ in _datasource_\\' but got \\'' + $attr.uiScroll + '\\'');\n }\n\n function parseNumericAttr(value, defaultValue) {\n const result = $parse(value)($scope);\n return isNaN(result) ? defaultValue : result;\n }\n\n const BUFFER_MIN = 3;\n const BUFFER_DEFAULT = 10;\n const PADDING_MIN = 0.3;\n const PADDING_DEFAULT = 0.5;\n const MAX_VIEWPORT_DELAY = 500;\n const VIEWPORT_POLLING_INTERVAL = 50;\n\n let datasource = null;\n const itemName = match[1];\n const datasourceName = match[2];\n const viewportController = controllers[0];\n const bufferSize = Math.max(BUFFER_MIN, parseNumericAttr($attr.bufferSize, BUFFER_DEFAULT));\n const padding = Math.max(PADDING_MIN, parseNumericAttr($attr.padding, PADDING_DEFAULT));\n let startIndex = parseNumericAttr($attr.startIndex, 1);\n let ridActual = 0; // current data revision id\n let pending = [];\n\n const elementRoutines = new ElementRoutines($injector, $q);\n const buffer = new ScrollBuffer(elementRoutines, bufferSize, startIndex);\n const viewport = new Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding);\n const adapter = new Adapter($scope, $parse, $attr, viewport, buffer, doAdjust, reload);\n\n if (viewportController) {\n viewportController.adapter = adapter;\n }\n\n const isDatasourceValid = () =>\n Object.prototype.toString.call(datasource) === '[object Object]' && typeof datasource.get === 'function';\n\n datasource = $parse(datasourceName)($scope); // try to get datasource on scope\n if (!isDatasourceValid()) {\n datasource = $injector.get(datasourceName); // try to inject datasource as service\n if (!isDatasourceValid()) {\n throw new Error(datasourceName + ' is not a valid datasource');\n }\n }\n\n let onRenderHandlers = [];\n function onRenderHandlersRunner() {\n onRenderHandlers.forEach(handler => handler.run());\n onRenderHandlers = [];\n }\n function persistDatasourceIndex(datasource, propName) {\n let getter;\n // need to postpone min/maxIndexUser processing if the view is empty\n if(Number.isInteger(datasource[propName])) {\n getter = datasource[propName];\n if(Number.isInteger(getter)) {\n onRenderHandlers = onRenderHandlers.filter(handler => handler.id !== propName);\n onRenderHandlers.push({\n id: propName,\n run: () => datasource[propName] = getter\n });\n }\n }\n }\n\n function defineDatasourceIndex(datasource, propName, propUserName) {\n const descriptor = Object.getOwnPropertyDescriptor(datasource, propName);\n if (descriptor && (descriptor.set || descriptor.get)) {\n return;\n }\n let getter;\n persistDatasourceIndex(datasource, propName);\n Object.defineProperty(datasource, propName, {\n set: (value) => {\n getter = value;\n if(pending.length && !buffer.length) {\n persistDatasourceIndex(datasource, propName);\n return;\n }\n buffer[propUserName] = value;\n const topPaddingHeightOld = viewport.topDataPos();\n viewport.adjustPaddings();\n if (propName === 'minIndex') {\n viewport.onAfterMinIndexSet(topPaddingHeightOld);\n }\n },\n get: () => getter\n });\n }\n\n defineDatasourceIndex(datasource, 'minIndex', 'minIndexUser');\n defineDatasourceIndex(datasource, 'maxIndex', 'maxIndexUser');\n\n const fetchNext = (datasource.get.length !== 2) ?\n (success) => datasource.get(buffer.next, bufferSize, success) :\n (success) => {\n datasource.get({\n index: buffer.next,\n append: buffer.length ? buffer[buffer.length - 1].item : void 0,\n count: bufferSize\n }, success);\n };\n\n const fetchPrevious = (datasource.get.length !== 2) ?\n (success) => datasource.get(buffer.first - bufferSize, bufferSize, success) :\n (success) => {\n datasource.get({\n index: buffer.first - bufferSize,\n prepend: buffer.length ? buffer[0].item : void 0,\n count: bufferSize\n }, success);\n };\n\n const initialize = () => {\n let tryCount = 0;\n if(!viewport.applyContainerStyle()) {\n const timer = $interval(() => {\n tryCount++;\n if(viewport.applyContainerStyle()) {\n $interval.cancel(timer);\n doAdjust();\n }\n if(tryCount * VIEWPORT_POLLING_INTERVAL >= MAX_VIEWPORT_DELAY) {\n $interval.cancel(timer);\n throw Error(`ui-scroll directive requires a viewport with non-zero height in ${MAX_VIEWPORT_DELAY}ms`);\n }\n }, VIEWPORT_POLLING_INTERVAL);\n }\n else {\n doAdjust();\n }\n };\n\n /**\n * Build padding elements\n *\n * Calling linker is the only way I found to get access to the tag name of the template\n * to prevent the directive scope from pollution a new scope is created and destroyed\n * right after the builder creation is completed\n */\n linker((clone, scope) => {\n viewport.createPaddingElements(clone[0]);\n // we do not include the clone in the DOM. It means that the nested directives will not\n // be able to reach the parent directives, but in this case it is intentional because we\n // created the clone to access the template tag name\n scope.$destroy();\n clone.remove();\n });\n\n $scope.$on('$destroy', () => {\n unbindEvents();\n viewport.unbind('mousewheel', wheelHandler);\n });\n\n viewport.bind('mousewheel', wheelHandler);\n\n initialize();\n\n /* Private function definitions */\n\n function isInvalid(rid) {\n return (rid && rid !== ridActual) || $scope.$$destroyed;\n }\n\n function bindEvents() {\n viewport.bind('resize', resizeAndScrollHandler);\n viewport.bind('scroll', resizeAndScrollHandler);\n }\n\n function unbindEvents() {\n viewport.unbind('resize', resizeAndScrollHandler);\n viewport.unbind('scroll', resizeAndScrollHandler);\n }\n\n function reload() {\n viewport.resetTopPadding();\n viewport.resetBottomPadding();\n if (arguments.length) {\n startIndex = arguments[0];\n }\n buffer.reset(startIndex);\n persistDatasourceIndex(datasource, 'minIndex');\n persistDatasourceIndex(datasource, 'maxIndex');\n doAdjust();\n }\n\n function isElementVisible(wrapper) {\n return wrapper.element.height() && wrapper.element[0].offsetParent;\n }\n\n function visibilityWatcher(wrapper) {\n if (isElementVisible(wrapper)) {\n buffer.forEach((item) => {\n if (typeof item.unregisterVisibilityWatcher === 'function') {\n item.unregisterVisibilityWatcher();\n delete item.unregisterVisibilityWatcher;\n }\n });\n if (!pending.length) {\n $timeout(() => doAdjust());\n }\n }\n }\n\n function insertWrapperContent(wrapper, insertAfter) {\n createElement(wrapper, insertAfter, viewport.insertElement);\n if (!isElementVisible(wrapper)) {\n wrapper.unregisterVisibilityWatcher = wrapper.scope.$watch(() => visibilityWatcher(wrapper));\n }\n elementRoutines.hideElement(wrapper); // hide inserted elements before data binding\n }\n\n function createElement(wrapper, insertAfter, insertElement) {\n let promises = null;\n const sibling = (insertAfter > 0) ? buffer[insertAfter - 1].element : undefined;\n linker((clone, scope) => {\n promises = insertElement(clone, sibling);\n wrapper.element = clone;\n wrapper.scope = scope;\n scope[itemName] = wrapper.item;\n });\n // ui-scroll-grid apply\n if (adapter.transform) {\n const tdInitializer = wrapper.scope.uiScrollTdInitializer;\n if (tdInitializer && tdInitializer.linking) {\n adapter.transform(wrapper.scope, wrapper.element);\n } else {\n wrapper.scope.uiScrollTdInitializer = {\n onLink: () => adapter.transform(wrapper.scope, wrapper.element),\n scope: wrapper.scope\n };\n }\n }\n return promises;\n }\n\n function updateDOM() {\n let promises = [];\n const toBePrepended = [];\n const toBeRemoved = [];\n const inserted = [];\n\n buffer.forEach((wrapper, i) => {\n switch (wrapper.op) {\n case 'prepend':\n toBePrepended.unshift(wrapper);\n break;\n case 'append':\n insertWrapperContent(wrapper, i);\n wrapper.op = 'none';\n inserted.push(wrapper);\n break;\n case 'insert':\n promises = promises.concat(createElement(wrapper, i, viewport.insertElementAnimated));\n wrapper.op = 'none';\n inserted.push(wrapper);\n break;\n case 'remove':\n toBeRemoved.push(wrapper);\n }\n });\n\n toBeRemoved.forEach((wrapper) => promises = promises.concat(viewport.removeItem(wrapper)));\n\n if (toBePrepended.length)\n toBePrepended.forEach((wrapper) => {\n insertWrapperContent(wrapper);\n wrapper.op = 'none';\n });\n\n buffer.forEach((item, i) => item.scope.$index = buffer.first + i);\n\n return {\n prepended: toBePrepended,\n removed: toBeRemoved,\n inserted: inserted,\n animated: promises\n };\n\n }\n\n function updatePaddings(rid, updates) {\n // schedule another doAdjust after animation completion\n if (updates.animated.length) {\n $q.all(updates.animated).then(() => {\n viewport.adjustPaddings();\n doAdjust(rid);\n });\n } else {\n viewport.adjustPaddings();\n }\n }\n\n function enqueueFetch(rid, updates) {\n if (viewport.shouldLoadBottom()) {\n if (!updates || buffer.effectiveHeight(updates.inserted) > 0) {\n // this means that at least one item appended in the last batch has height > 0\n if (pending.push(true) === 1) {\n adapter.loading(true);\n fetch(rid);\n }\n }\n } else if (viewport.shouldLoadTop()) {\n if ((!updates || buffer.effectiveHeight(updates.prepended) > 0) || pending[0]) {\n // this means that at least one item appended in the last batch has height > 0\n // pending[0] = true means that previous fetch was appending. We need to force at least one prepend\n // BTW there will always be at least 1 element in the pending array because bottom is fetched first\n if (pending.push(false) === 1) {\n adapter.loading(true);\n fetch(rid);\n }\n }\n }\n }\n\n function processUpdates() {\n const updates = updateDOM();\n\n // We need the item bindings to be processed before we can do adjustments\n !$scope.$$phase && !$rootScope.$$phase && $scope.$digest();\n\n updates.inserted.forEach(w => elementRoutines.showElement(w));\n updates.prepended.forEach(w => elementRoutines.showElement(w));\n return updates;\n }\n\n function doAdjust(rid) {\n if (!rid) { // dismiss pending requests\n pending = [];\n rid = ++ridActual;\n }\n\n const updates = processUpdates();\n\n if (isInvalid(rid)) {\n return;\n }\n\n updatePaddings(rid, updates);\n enqueueFetch(rid);\n\n if (!pending.length) {\n adapter.calculateProperties();\n }\n }\n\n function doAdjustAfterFetch(rid) {\n const updates = processUpdates();\n\n viewport.onAfterPrepend(updates);\n\n if (isInvalid(rid)) {\n return;\n }\n\n updatePaddings(rid, updates);\n onRenderHandlersRunner();\n enqueueFetch(rid, updates);\n pending.shift();\n\n if (pending.length)\n fetch(rid);\n else {\n adapter.loading(false);\n bindEvents();\n adapter.calculateProperties();\n }\n }\n\n function fetch(rid) {\n if (pending[0]) {// scrolling down\n if (buffer.length && !viewport.shouldLoadBottom()) {\n doAdjustAfterFetch(rid);\n } else {\n fetchNext((result) => {\n if (isInvalid(rid)) {\n return;\n }\n\n if (result.length < bufferSize) {\n buffer.eof = true;\n }\n\n if (result.length > 0) {\n viewport.clipTop();\n buffer.append(result);\n }\n\n doAdjustAfterFetch(rid);\n });\n }\n } else { // scrolling up\n if (buffer.length && !viewport.shouldLoadTop()) {\n doAdjustAfterFetch(rid);\n } else {\n fetchPrevious((result) => {\n if (isInvalid(rid)) {\n return;\n }\n\n if (result.length < bufferSize) {\n buffer.bof = true;\n // log 'bof is reached'\n }\n\n if (result.length > 0) {\n if (buffer.length) {\n viewport.clipBottom();\n }\n buffer.prepend(result);\n }\n\n doAdjustAfterFetch(rid);\n });\n }\n }\n }\n\n function resizeAndScrollHandler() {\n if (!$rootScope.$$phase && !adapter.isLoading && !adapter.disabled) {\n\n enqueueFetch(ridActual);\n\n if (pending.length) {\n unbindEvents();\n } else {\n adapter.calculateProperties();\n !$scope.$$phase && $scope.$digest();\n }\n }\n }\n\n function wheelHandler(event) {\n if (!adapter.disabled) {\n const scrollTop = viewport[0].scrollTop;\n const yMax = viewport[0].scrollHeight - viewport[0].clientHeight;\n\n if ((scrollTop === 0 && !buffer.bof) || (scrollTop === yMax && !buffer.eof)) {\n event.preventDefault();\n }\n }\n }\n }\n\n }\n ]);\n\n\n// WEBPACK FOOTER //\n// ./src/ui-scroll.js","/*!\r\n globals: angular, window\r\n List of used element methods available in JQuery but not in JQuery Lite\r\n element.before(elem)\r\n element.height()\r\n element.outerHeight(true)\r\n element.height(value) = only for Top/Bottom padding elements\r\n element.scrollTop()\r\n element.scrollTop(value)\r\n */\r\n\r\nexport default class JQLiteExtras {\r\n\r\n registerFor(element) {\r\n let convertToPx, css, getStyle, isWindow;\r\n // angular implementation blows up if elem is the window\r\n css = angular.element.prototype.css;\r\n\r\n element.prototype.css = function (name, value) {\r\n let self = this;\r\n let elem = self[0];\r\n if (!(!elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style)) {\r\n return css.call(self, name, value);\r\n }\r\n };\r\n\r\n // as defined in angularjs v1.0.5\r\n isWindow = (obj) => obj && obj.document && obj.location && obj.alert && obj.setInterval;\r\n\r\n function scrollTo(self, direction, value) {\r\n let elem = self[0];\r\n let [method, prop, preserve] = {\r\n top: [\r\n 'scrollTop',\r\n 'pageYOffset',\r\n 'scrollLeft'\r\n ],\r\n left: [\r\n 'scrollLeft',\r\n 'pageXOffset',\r\n 'scrollTop'\r\n ]\r\n }[direction];\r\n\r\n const isValueDefined = typeof value !== 'undefined';\r\n if (isWindow(elem)) {\r\n if (isValueDefined) {\r\n return elem.scrollTo(self[preserve].call(self), value);\r\n }\r\n return (prop in elem) ? elem[prop] : elem.document.documentElement[method];\r\n } else {\r\n if (isValueDefined) {\r\n elem[method] = value;\r\n }\r\n return elem[method];\r\n }\r\n }\r\n\r\n if (window.getComputedStyle) {\r\n getStyle = (elem) => window.getComputedStyle(elem, null);\r\n convertToPx = (elem, value) => parseFloat(value);\r\n } else {\r\n getStyle = (elem) => elem.currentStyle;\r\n convertToPx = (elem, value) => {\r\n let left, result, rs, rsLeft, style;\r\n let core_pnum = /[+-]?(?:\\d*\\.|)\\d+(?:[eE][+-]?\\d+|)/.source;\r\n let rnumnonpx = new RegExp('^(' + core_pnum + ')(?!px)[a-z%]+$', 'i');\r\n\r\n if (!rnumnonpx.test(value)) {\r\n return parseFloat(value);\r\n }\r\n\r\n // ported from JQuery\r\n style = elem.style;\r\n left = style.left;\r\n rs = elem.runtimeStyle;\r\n rsLeft = rs && rs.left;\r\n if (rs) {\r\n rs.left = style.left;\r\n }\r\n // put in the new values to get a computed style out\r\n style.left = value;\r\n result = style.pixelLeft;\r\n style.left = left;\r\n if (rsLeft) {\r\n rs.left = rsLeft;\r\n }\r\n return result;\r\n };\r\n }\r\n\r\n function getMeasurements(elem, measure) {\r\n let base, borderA, borderB, computedMarginA, computedMarginB, computedStyle, dirA, dirB, marginA, marginB, paddingA, paddingB;\r\n\r\n if (isWindow(elem)) {\r\n base = document.documentElement[{height: 'clientHeight', width: 'clientWidth'}[measure]];\r\n\r\n return {\r\n base: base,\r\n padding: 0,\r\n border: 0,\r\n margin: 0\r\n };\r\n }\r\n\r\n // Start with offset property\r\n [\r\n base,\r\n dirA,\r\n dirB\r\n ] = {\r\n width: [\r\n elem.offsetWidth,\r\n 'Left',\r\n 'Right'\r\n ],\r\n height: [\r\n elem.offsetHeight,\r\n 'Top',\r\n 'Bottom'\r\n ]\r\n }[measure];\r\n\r\n computedStyle = getStyle(elem);\r\n paddingA = convertToPx(elem, computedStyle['padding' + dirA]) || 0;\r\n paddingB = convertToPx(elem, computedStyle['padding' + dirB]) || 0;\r\n borderA = convertToPx(elem, computedStyle['border' + dirA + 'Width']) || 0;\r\n borderB = convertToPx(elem, computedStyle['border' + dirB + 'Width']) || 0;\r\n computedMarginA = computedStyle['margin' + dirA];\r\n computedMarginB = computedStyle['margin' + dirB];\r\n\r\n // I do not care for width for now, so this hack is irrelevant\r\n // if ( !supportsPercentMargin )\r\n // computedMarginA = hackPercentMargin( elem, computedStyle, computedMarginA )\r\n // computedMarginB = hackPercentMargin( elem, computedStyle, computedMarginB )\r\n marginA = convertToPx(elem, computedMarginA) || 0;\r\n marginB = convertToPx(elem, computedMarginB) || 0;\r\n\r\n return {\r\n base: base,\r\n padding: paddingA + paddingB,\r\n border: borderA + borderB,\r\n margin: marginA + marginB\r\n };\r\n }\r\n\r\n function getWidthHeight(elem, direction, measure) {\r\n let computedStyle, result;\r\n\r\n let measurements = getMeasurements(elem, direction);\r\n\r\n if (measurements.base > 0) {\r\n return {\r\n base: measurements.base - measurements.padding - measurements.border,\r\n outer: measurements.base,\r\n outerfull: measurements.base + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // Fall back to computed then uncomputed css if necessary\r\n computedStyle = getStyle(elem);\r\n result = computedStyle[direction];\r\n\r\n if (result < 0 || result === null) {\r\n result = elem.style[direction] || 0;\r\n }\r\n\r\n // Normalize \"\", auto, and prepare for extra\r\n result = parseFloat(result) || 0;\r\n\r\n return {\r\n base: result - measurements.padding - measurements.border,\r\n outer: result,\r\n outerfull: result + measurements.padding + measurements.border + measurements.margin\r\n }[measure];\r\n }\r\n\r\n // define missing methods\r\n return angular.forEach({\r\n before(newElem) {\r\n var children, elem, i, j, parent, ref, self;\r\n self = this;\r\n elem = self[0];\r\n parent = self.parent();\r\n children = parent.contents();\r\n if (children[0] === elem) {\r\n return parent.prepend(newElem);\r\n } else {\r\n for (i = j = 1, ref = children.length - 1; 1 <= ref ? j <= ref : j >= ref; i = 1 <= ref ? ++j : --j) {\r\n if (children[i] === elem) {\r\n angular.element(children[i - 1]).after(newElem);\r\n return;\r\n }\r\n }\r\n throw new Error('invalid DOM structure ' + elem.outerHTML);\r\n }\r\n },\r\n height (value){\r\n var self;\r\n self = this;\r\n if (typeof value !== 'undefined') {\r\n if (Number.isInteger(value)) {\r\n value = value + 'px';\r\n }\r\n return css.call(self, 'height', value);\r\n } else {\r\n return getWidthHeight(this[0], 'height', 'base');\r\n }\r\n },\r\n outerHeight(option) {\r\n return getWidthHeight(this[0], 'height', option ? 'outerfull' : 'outer');\r\n },\r\n outerWidth(option) {\r\n return getWidthHeight(this[0], 'width', option ? 'outerfull' : 'outer');\r\n },\r\n\r\n /*\r\n The offset setter method is not implemented\r\n */\r\n offset(value) {\r\n let docElem, win;\r\n let self = this;\r\n let box = {\r\n top: 0,\r\n left: 0\r\n };\r\n let elem = self[0];\r\n let doc = elem && elem.ownerDocument;\r\n\r\n if (arguments.length) {\r\n if (value === undefined) {\r\n return self;\r\n }\r\n // TODO: implement setter\r\n throw new Error('offset setter method is not implemented');\r\n }\r\n\r\n if (!doc) {\r\n return;\r\n }\r\n\r\n docElem = doc.documentElement;\r\n\r\n // TODO: Make sure it's not a disconnected DOM node\r\n\r\n if (elem.getBoundingClientRect != null) {\r\n box = elem.getBoundingClientRect();\r\n }\r\n\r\n win = doc.defaultView || doc.parentWindow;\r\n\r\n return {\r\n top: box.top + (win.pageYOffset || docElem.scrollTop) - (docElem.clientTop || 0),\r\n left: box.left + (win.pageXOffset || docElem.scrollLeft) - (docElem.clientLeft || 0)\r\n };\r\n },\r\n scrollTop(value) {\r\n return scrollTo(this, 'top', value);\r\n },\r\n scrollLeft(value) {\r\n return scrollTo(this, 'left', value);\r\n }\r\n }, (value, key) => {\r\n if (!element.prototype[key]) {\r\n return element.prototype[key] = value;\r\n }\r\n });\r\n }\r\n\r\n}\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/modules/jqLiteExtras.js","const hideClassToken = 'ng-ui-scroll-hide';\r\n\r\nexport default class ElementRoutines {\r\n\r\n static addCSSRules() {\r\n const selector = '.' + hideClassToken;\r\n const rules = 'display: none';\r\n const sheet = document.styleSheets[0];\r\n let index;\r\n try {\r\n index = sheet.cssRules.length;\r\n } catch (err) {\r\n index = 0;\r\n }\r\n if('insertRule' in sheet) {\r\n sheet.insertRule(selector + '{' + rules + '}', index);\r\n }\r\n else if('addRule' in sheet) {\r\n sheet.addRule(selector, rules, index);\r\n }\r\n }\r\n\r\n constructor($injector, $q) {\r\n this.$animate = ($injector.has && $injector.has('$animate')) ? $injector.get('$animate') : null;\r\n this.isAngularVersionLessThen1_3 = angular.version.major === 1 && angular.version.minor < 3;\r\n this.$q = $q;\r\n }\r\n\r\n hideElement(wrapper) {\r\n wrapper.element.addClass(hideClassToken);\r\n }\r\n\r\n showElement(wrapper) {\r\n wrapper.element.removeClass(hideClassToken);\r\n }\r\n\r\n insertElement(newElement, previousElement) {\r\n previousElement.after(newElement);\r\n return [];\r\n }\r\n\r\n removeElement(wrapper) {\r\n wrapper.element.remove();\r\n wrapper.scope.$destroy();\r\n return [];\r\n }\r\n\r\n insertElementAnimated(newElement, previousElement) {\r\n if (!this.$animate) {\r\n return this.insertElement(newElement, previousElement);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n // no need for parent - previous element is never null\r\n this.$animate.enter(newElement, null, previousElement, () => deferred.resolve());\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n // no need for parent - previous element is never null\r\n return [this.$animate.enter(newElement, null, previousElement)];\r\n }\r\n\r\n removeElementAnimated(wrapper) {\r\n if (!this.$animate) {\r\n return this.removeElement(wrapper);\r\n }\r\n\r\n if (this.isAngularVersionLessThen1_3) {\r\n const deferred = this.$q.defer();\r\n this.$animate.leave(wrapper.element, () => {\r\n wrapper.scope.$destroy();\r\n return deferred.resolve();\r\n });\r\n\r\n return [deferred.promise];\r\n }\r\n\r\n return [(this.$animate.leave(wrapper.element)).then(() => wrapper.scope.$destroy())];\r\n }\r\n}\n\n\n// WEBPACK FOOTER //\n// ./src/modules/elementRoutines.js","export default function ScrollBuffer(elementRoutines, bufferSize, startIndex) {\r\n const buffer = Object.create(Array.prototype);\r\n\r\n Object.assign(buffer, {\r\n size: bufferSize,\r\n\r\n reset(startIndex) {\r\n buffer.remove(0, buffer.length);\r\n buffer.eof = false;\r\n buffer.bof = false;\r\n buffer.first = startIndex;\r\n buffer.next = startIndex;\r\n buffer.minIndex = startIndex;\r\n buffer.maxIndex = startIndex;\r\n buffer.minIndexUser = null;\r\n buffer.maxIndexUser = null;\r\n },\r\n\r\n append(items) {\r\n items.forEach((item) => {\r\n ++buffer.next;\r\n buffer.insert('append', item);\r\n });\r\n buffer.maxIndex = buffer.eof ? buffer.next - 1 : Math.max(buffer.next - 1, buffer.maxIndex);\r\n },\r\n\r\n prepend(items) {\r\n items.reverse().forEach((item) => {\r\n --buffer.first;\r\n buffer.insert('prepend', item);\r\n });\r\n buffer.minIndex = buffer.bof ? buffer.minIndex = buffer.first : Math.min(buffer.first, buffer.minIndex);\r\n },\r\n\r\n /**\r\n * inserts wrapped element in the buffer\r\n * the first argument is either operation keyword (see below) or a number for operation 'insert'\r\n * for insert the number is the index for the buffer element the new one have to be inserted after\r\n * operations: 'append', 'prepend', 'insert', 'remove', 'update', 'none'\r\n */\r\n insert(operation, item, isTop) {\r\n const wrapper = {\r\n item: item\r\n };\r\n\r\n if (operation % 1 === 0) {// it is an insert\r\n wrapper.op = 'insert';\r\n buffer.splice(operation, 0, wrapper);\r\n if(isTop) {\r\n buffer.first--;\r\n }\r\n else {\r\n buffer.next++;\r\n }\r\n } else {\r\n wrapper.op = operation;\r\n switch (operation) {\r\n case 'append':\r\n buffer.push(wrapper);\r\n break;\r\n case 'prepend':\r\n buffer.unshift(wrapper);\r\n break;\r\n }\r\n }\r\n },\r\n\r\n // removes elements from buffer\r\n remove(arg1, arg2) {\r\n if (Number.isInteger(arg1)) {\r\n // removes items from arg1 (including) through arg2 (excluding)\r\n for (let i = arg1; i < arg2; i++) {\r\n elementRoutines.removeElement(buffer[i]);\r\n }\r\n return buffer.splice(arg1, arg2 - arg1);\r\n }\r\n // removes single item(wrapper) from the buffer\r\n buffer.splice(buffer.indexOf(arg1), 1);\r\n if(arg1._op === 'isTop' && buffer.first === this.getAbsMinIndex()) {\r\n this.incrementMinIndex();\r\n }\r\n else {\r\n this.decrementMaxIndex();\r\n }\r\n if(arg1._op === 'isTop') {\r\n buffer.first++;\r\n }\r\n else {\r\n buffer.next--;\r\n }\r\n if(!buffer.length) {\r\n buffer.first = 1;\r\n buffer.next = 1;\r\n }\r\n\r\n return elementRoutines.removeElementAnimated(arg1);\r\n },\r\n\r\n incrementMinIndex() {\r\n if(buffer.minIndexUser !== null) {\r\n if(buffer.minIndex > buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n return;\r\n }\r\n if(buffer.minIndex === buffer.minIndexUser) {\r\n buffer.minIndexUser++;\r\n }\r\n }\r\n buffer.minIndex++;\r\n },\r\n\r\n decrementMaxIndex() {\r\n if(buffer.maxIndexUser !== null && buffer.maxIndex <= buffer.maxIndexUser) {\r\n buffer.maxIndexUser--;\r\n }\r\n buffer.maxIndex--;\r\n },\r\n\r\n getAbsMinIndex() {\r\n if(buffer.minIndexUser !== null) {\r\n return Math.min(buffer.minIndexUser, buffer.minIndex);\r\n }\r\n return buffer.minIndex;\r\n },\r\n\r\n getAbsMaxIndex() {\r\n if(buffer.maxIndexUser !== null) {\r\n return Math.max(buffer.maxIndexUser, buffer.maxIndex);\r\n }\r\n return buffer.maxIndex;\r\n },\r\n\r\n effectiveHeight(elements) {\r\n if (!elements.length) {\r\n return 0;\r\n }\r\n let top = Number.MAX_VALUE;\r\n let bottom = Number.NEGATIVE_INFINITY;\r\n elements.forEach((wrapper) => {\r\n if (wrapper.element[0].offsetParent) {\r\n // element style is not display:none\r\n top = Math.min(top, wrapper.element.offset().top);\r\n bottom = Math.max(bottom, wrapper.element.offset().top + wrapper.element.outerHeight(true));\r\n }\r\n });\r\n return Math.max(0, bottom - top);\r\n }\r\n\r\n });\r\n\r\n buffer.reset(startIndex);\r\n\r\n return buffer;\r\n}\n\n\n// WEBPACK FOOTER //\n// ./src/modules/buffer.js","import Padding from './padding';\r\n\r\nexport default function Viewport(elementRoutines, buffer, element, viewportController, $rootScope, padding) {\r\n let topPadding = null;\r\n let bottomPadding = null;\r\n const viewport = viewportController && viewportController.viewport ? viewportController.viewport : angular.element(window);\r\n const container = viewportController && viewportController.container ? viewportController.container : undefined;\r\n const scope = viewportController && viewportController.scope ? viewportController.scope : $rootScope;\r\n\r\n viewport.css({\r\n 'overflow-anchor': 'none',\r\n 'overflow-y': 'auto',\r\n 'display': 'block'\r\n });\r\n\r\n function bufferPadding() {\r\n return viewport.outerHeight() * padding; // some extra space to initiate preload\r\n }\r\n\r\n Object.assign(viewport, {\r\n getScope() {\r\n return scope;\r\n },\r\n\r\n createPaddingElements(template) {\r\n topPadding = new Padding(template);\r\n bottomPadding = new Padding(template);\r\n element.before(topPadding.element);\r\n element.after(bottomPadding.element);\r\n topPadding.height(0);\r\n bottomPadding.height(0);\r\n },\r\n\r\n applyContainerStyle() {\r\n if (!container) {\r\n return true;\r\n }\r\n if(container !== viewport) {\r\n viewport.css('height', window.getComputedStyle(container[0]).height);\r\n }\r\n return viewport.height() > 0;\r\n },\r\n\r\n bottomDataPos() {\r\n let scrollHeight = viewport[0].scrollHeight;\r\n scrollHeight = scrollHeight != null ? scrollHeight : viewport[0].document.documentElement.scrollHeight;\r\n return scrollHeight - bottomPadding.height();\r\n },\r\n\r\n topDataPos() {\r\n return topPadding.height();\r\n },\r\n\r\n bottomVisiblePos() {\r\n return viewport.scrollTop() + viewport.outerHeight();\r\n },\r\n\r\n topVisiblePos() {\r\n return viewport.scrollTop();\r\n },\r\n\r\n insertElement(e, sibling) {\r\n return elementRoutines.insertElement(e, sibling || topPadding.element);\r\n },\r\n\r\n insertElementAnimated(e, sibling) {\r\n return elementRoutines.insertElementAnimated(e, sibling || topPadding.element);\r\n },\r\n\r\n shouldLoadBottom() {\r\n return !buffer.eof && viewport.bottomDataPos() < viewport.bottomVisiblePos() + bufferPadding();\r\n },\r\n\r\n clipBottom() {\r\n // clip the invisible items off the bottom\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.bottomDataPos() - viewport.bottomVisiblePos() - bufferPadding();\r\n\r\n for (let i = buffer.length - 1; i >= 0; i--) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n bottomPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n buffer.eof = false;\r\n buffer.remove(buffer.length - overage, buffer.length);\r\n buffer.next -= overage;\r\n viewport.adjustPaddings();\r\n }\r\n },\r\n\r\n shouldLoadTop() {\r\n return !buffer.bof && (viewport.topDataPos() > viewport.topVisiblePos() - bufferPadding());\r\n },\r\n\r\n clipTop() {\r\n // clip the invisible items off the top\r\n let overage = 0;\r\n let overageHeight = 0;\r\n let itemHeight = 0;\r\n let emptySpaceHeight = viewport.topVisiblePos() - viewport.topDataPos() - bufferPadding();\r\n\r\n for (let i = 0; i < buffer.length; i++) {\r\n itemHeight = buffer[i].element.outerHeight(true);\r\n if (overageHeight + itemHeight > emptySpaceHeight) {\r\n break;\r\n }\r\n topPadding.cache.add(buffer[i]);\r\n overageHeight += itemHeight;\r\n overage++;\r\n }\r\n\r\n if (overage > 0) {\r\n // we need to adjust top padding element before items are removed from top\r\n // to avoid strange behaviour of scroll bar during remove top items when we are at the very bottom\r\n topPadding.height(topPadding.height() + overageHeight);\r\n buffer.bof = false;\r\n buffer.remove(0, overage);\r\n buffer.first += overage;\r\n }\r\n },\r\n\r\n adjustPaddings() {\r\n if (!buffer.length) {\r\n return;\r\n }\r\n\r\n // precise heights calculation based on items that are in buffer or that were in buffer once\r\n const visibleItemsHeight = buffer.reduce((summ, item) => summ + item.element.outerHeight(true), 0);\r\n\r\n let topPaddingHeight = 0, topCount = 0;\r\n topPadding.cache.forEach(item => {\r\n if(item.index < buffer.first) {\r\n topPaddingHeight += item.height;\r\n topCount++;\r\n }\r\n });\r\n\r\n let bottomPaddingHeight = 0, bottomCount = 0;\r\n bottomPadding.cache.forEach(item => {\r\n if(item.index >= buffer.next) {\r\n bottomPaddingHeight += item.height;\r\n bottomCount++;\r\n }\r\n });\r\n\r\n const totalHeight = visibleItemsHeight + topPaddingHeight + bottomPaddingHeight;\r\n const averageItemHeight = totalHeight / (topCount + bottomCount + buffer.length);\r\n\r\n // average heights calculation, items that have never been reached\r\n let adjustTopPadding = buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser;\r\n let adjustBottomPadding = buffer.maxIndexUser !== null && buffer.maxIndex < buffer.maxIndexUser;\r\n let topPaddingHeightAdd = adjustTopPadding ? (buffer.minIndex - buffer.minIndexUser) * averageItemHeight : 0;\r\n let bottomPaddingHeightAdd = adjustBottomPadding ? (buffer.maxIndexUser - buffer.maxIndex) * averageItemHeight : 0;\r\n\r\n // paddings combine adjustment\r\n topPadding.height(topPaddingHeight + topPaddingHeightAdd);\r\n bottomPadding.height(bottomPaddingHeight + bottomPaddingHeightAdd);\r\n },\r\n\r\n onAfterMinIndexSet(topPaddingHeightOld) {\r\n // additional scrollTop adjustment in case of datasource.minIndex external set\r\n if (buffer.minIndexUser !== null && buffer.minIndex > buffer.minIndexUser) {\r\n let diff = topPadding.height() - topPaddingHeightOld;\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n while((diff -= viewport.scrollTop()) > 0) {\r\n bottomPadding.height(bottomPadding.height() + diff);\r\n viewport.scrollTop(viewport.scrollTop() + diff);\r\n }\r\n }\r\n },\r\n\r\n onAfterPrepend(updates) {\r\n if (!updates.prepended.length)\r\n return;\r\n const height = buffer.effectiveHeight(updates.prepended);\r\n const paddingHeight = topPadding.height() - height;\r\n if (paddingHeight >= 0) {\r\n topPadding.height(paddingHeight);\r\n }\r\n else {\r\n topPadding.height(0);\r\n viewport.scrollTop(viewport.scrollTop() - paddingHeight);\r\n }\r\n },\r\n\r\n resetTopPadding() {\r\n topPadding.height(0);\r\n topPadding.cache.clear();\r\n },\r\n\r\n resetBottomPadding() {\r\n bottomPadding.height(0);\r\n bottomPadding.cache.clear();\r\n },\r\n\r\n removeCacheItem(item, isTop) {\r\n topPadding.cache.remove(item, isTop);\r\n bottomPadding.cache.remove(item, isTop);\r\n },\r\n\r\n removeItem(item) {\r\n this.removeCacheItem(item);\r\n return buffer.remove(item);\r\n }\r\n });\r\n\r\n return viewport;\r\n}\r\n\n\n\n// WEBPACK FOOTER //\n// ./src/modules/viewport.js","// Can't just extend the Array, due to Babel does not support built-in classes extending\r\n// This solution was taken from https://stackoverflow.com/questions/46897414/es6-class-extends-array-workaround-for-es5-babel-transpile\r\nclass CacheProto {\r\n add(item) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === item.scope.$index) {\r\n this[i].height = item.element.outerHeight();\r\n return;\r\n }\r\n }\r\n this.push({\r\n index: item.scope.$index,\r\n height: item.element.outerHeight()\r\n });\r\n this.sort((a, b) => ((a.index < b.index) ? -1 : ((a.index > b.index) ? 1 : 0)));\r\n }\r\n\r\n remove(argument, _isTop) {\r\n const index = argument % 1 === 0 ? argument : argument.scope.$index;\r\n const isTop = argument % 1 === 0 ? _isTop : argument._op === 'isTop';\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index === index) {\r\n this.splice(i, 1);\r\n break;\r\n }\r\n }\r\n if(!isTop) {\r\n for (let i = this.length - 1; i >= 0; i--) {\r\n if (this[i].index > index) {\r\n this[i].index--;\r\n }\r\n }\r\n }\r\n }\r\n\r\n clear() {\r\n this.length = 0;\r\n }\r\n}\r\n\r\nfunction Cache() {\r\n const instance = [];\r\n instance.push.apply(instance, arguments);\r\n Object.setPrototypeOf(instance, Cache.prototype);\r\n return instance;\r\n}\r\nCache.prototype = Object.create(Array.prototype);\r\nObject.getOwnPropertyNames(CacheProto.prototype).forEach(methodName =>\r\n Cache.prototype[methodName] = CacheProto.prototype[methodName]\r\n);\r\n\r\nfunction generateElement(template) {\r\n if(template.nodeType !== Node.ELEMENT_NODE) {\r\n throw new Error('ui-scroll directive requires an Element node for templating the view');\r\n }\r\n let element;\r\n switch (template.tagName.toLowerCase()) {\r\n case 'dl':\r\n throw new Error(`ui-scroll directive does not support <${template.tagName}> as a repeating tag: ${template.outerHTML}`);\r\n case 'tr':\r\n let table = angular.element('
    ');\r\n element = table.find('tr');\r\n break;\r\n case 'li':\r\n element = angular.element('
  • ');\r\n break;\r\n default:\r\n element = angular.element('
    ');\r\n }\r\n return element;\r\n}\r\n\r\nclass Padding {\r\n constructor(template) {\r\n this.element = generateElement(template);\r\n this.cache = new Cache();\r\n }\r\n\r\n height() {\r\n return this.element.height.apply(this.element, arguments);\r\n }\r\n}\r\n\r\nexport default Padding;\n\n\n// WEBPACK FOOTER //\n// ./src/modules/padding.js","class Adapter {\r\n\r\n constructor($scope, $parse, $attr, viewport, buffer, doAdjust, reload) {\r\n this.$parse = $parse;\r\n this.$attr = $attr;\r\n this.viewport = viewport;\r\n this.buffer = buffer;\r\n\r\n this.doAdjust = doAdjust;\r\n this.reload = reload;\r\n\r\n this.isLoading = false;\r\n this.disabled = false;\r\n\r\n const viewportScope = viewport.getScope();\r\n this.startScope = viewportScope.$parent ? viewportScope : $scope;\r\n\r\n this.publicContext = {};\r\n this.assignAdapter($attr.adapter);\r\n this.generatePublicContext();\r\n }\r\n\r\n assignAdapter(adapterAttr) {\r\n if (!adapterAttr || !(adapterAttr = adapterAttr.replace(/^\\s+|\\s+$/gm, ''))) {\r\n return;\r\n }\r\n let adapterOnScope;\r\n\r\n try {\r\n this.$parse(adapterAttr).assign(this.startScope, {});\r\n adapterOnScope = this.$parse(adapterAttr)(this.startScope);\r\n }\r\n catch (error) {\r\n error.message = `Angular ui-scroll Adapter assignment exception.\\n` +\r\n `Can't parse \"${adapterAttr}\" expression.\\n` +\r\n error.message;\r\n throw error;\r\n }\r\n\r\n Object.assign(adapterOnScope, this.publicContext);\r\n this.publicContext = adapterOnScope;\r\n }\r\n\r\n generatePublicContext() {\r\n // these methods will be accessible out of ui-scroll via user defined adapter\r\n const publicMethods = ['reload', 'applyUpdates', 'append', 'prepend', 'isBOF', 'isEOF', 'isEmpty'];\r\n for (let i = publicMethods.length - 1; i >= 0; i--) {\r\n this.publicContext[publicMethods[i]] = this[publicMethods[i]].bind(this);\r\n }\r\n\r\n // these read-only props will be accessible out of ui-scroll via user defined adapter\r\n const publicProps = ['isLoading', 'topVisible', 'topVisibleElement', 'topVisibleScope', 'bottomVisible', 'bottomVisibleElement', 'bottomVisibleScope'];\r\n for (let i = publicProps.length - 1; i >= 0; i--) {\r\n let property, attr = this.$attr[publicProps[i]];\r\n Object.defineProperty(this, publicProps[i], {\r\n get: () => property,\r\n set: (value) => {\r\n property = value;\r\n this.publicContext[publicProps[i]] = value;\r\n if (attr) {\r\n this.$parse(attr).assign(this.startScope, value);\r\n }\r\n }\r\n });\r\n }\r\n\r\n // non-read-only public property\r\n Object.defineProperty(this.publicContext, 'disabled', {\r\n get: () => this.disabled,\r\n set: (value) => (!(this.disabled = value)) ? this.doAdjust() : null\r\n });\r\n }\r\n\r\n loading(value) {\r\n this.isLoading = value;\r\n }\r\n\r\n isBOF() {\r\n return this.buffer.bof;\r\n }\r\n\r\n isEOF() {\r\n return this.buffer.eof;\r\n }\r\n\r\n isEmpty() {\r\n return !this.buffer.length;\r\n }\r\n\r\n append(newItems) {\r\n this.buffer.append(newItems);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n prepend(newItems) {\r\n this.buffer.prepend(newItems);\r\n this.doAdjust();\r\n this.viewport.clipTop();\r\n this.viewport.clipBottom();\r\n }\r\n\r\n applyUpdates(arg1, arg2) {\r\n if (typeof arg1 === 'function') {\r\n this.applyUpdatesFunc(arg1);\r\n } else {\r\n this.applyUpdatesIndex(arg1, arg2);\r\n }\r\n this.doAdjust();\r\n }\r\n\r\n applyUpdatesFunc(cb) {\r\n this.buffer.slice(0).forEach((wrapper) => {\r\n // we need to do it on the buffer clone, because buffer content\r\n // may change as we iterate through\r\n this.applyUpdate(wrapper, cb(wrapper.item, wrapper.scope, wrapper.element));\r\n });\r\n }\r\n\r\n applyUpdatesIndex(index, newItems) {\r\n if (index % 1 !== 0) {\r\n throw new Error('applyUpdates - ' + index + ' is not a valid index (should be an integer)');\r\n }\r\n const _index = index - this.buffer.first;\r\n\r\n // apply updates only within buffer\r\n if (_index >= 0 && _index < this.buffer.length) {\r\n this.applyUpdate(this.buffer[_index], newItems);\r\n }\r\n // out-of-buffer case: deletion may affect Paddings\r\n else if(index >= this.buffer.getAbsMinIndex() && index <= this.buffer.getAbsMaxIndex()) {\r\n if(Array.isArray(newItems) && !newItems.length) {\r\n this.viewport.removeCacheItem(index, index === this.buffer.minIndex);\r\n if(index === this.buffer.getAbsMinIndex()) {\r\n this.buffer.incrementMinIndex();\r\n }\r\n else {\r\n this.buffer.decrementMaxIndex();\r\n }\r\n }\r\n }\r\n }\r\n\r\n applyUpdate(wrapper, newItems) {\r\n if (!Array.isArray(newItems)) {\r\n return;\r\n }\r\n let position = this.buffer.indexOf(wrapper);\r\n if (!newItems.reverse().some(newItem => newItem === wrapper.item)) {\r\n wrapper.op = 'remove';\r\n if(position === 0 && !newItems.length) {\r\n wrapper._op = 'isTop'; // to catch \"first\" edge case on remove\r\n }\r\n }\r\n newItems.forEach((newItem) => {\r\n if (newItem === wrapper.item) {\r\n position--;\r\n } else {\r\n // 3 parameter (isTop) is to catch \"first\" edge case on insert\r\n this.buffer.insert(position + 1, newItem, position === -1);\r\n }\r\n });\r\n }\r\n\r\n calculateProperties() {\r\n let rowTop = null, topHeight = 0;\r\n let topDone = false, bottomDone = false;\r\n const length = this.buffer.length;\r\n\r\n for (let i = 0; i < length; i++) {\r\n const item = this.buffer[i];\r\n const itemTop = item.element.offset().top;\r\n\r\n if (rowTop !== itemTop) { // a new row condition\r\n const itemHeight = item.element.outerHeight(true);\r\n const top = this.viewport.topDataPos() + topHeight + itemHeight;\r\n\r\n if (!topDone && top > this.viewport.topVisiblePos()) {\r\n topDone = true;\r\n this['topVisible'] = item.item;\r\n this['topVisibleElement'] = item.element;\r\n this['topVisibleScope'] = item.scope;\r\n }\r\n if (!bottomDone && (top >= this.viewport.bottomVisiblePos() || (i === length - 1 && this.isEOF()))) {\r\n bottomDone = true;\r\n this['bottomVisible'] = item.item;\r\n this['bottomVisibleElement'] = item.element;\r\n this['bottomVisibleScope'] = item.scope;\r\n }\r\n topHeight += itemHeight;\r\n }\r\n rowTop = itemTop;\r\n\r\n if (topDone && bottomDone) {\r\n break;\r\n }\r\n }\r\n }\r\n\r\n}\r\n\r\nexport default Adapter;\n\n\n// WEBPACK FOOTER //\n// ./src/modules/adapter.js"],"sourceRoot":""} \ No newline at end of file diff --git a/src/modules/elementRoutines.js b/src/modules/elementRoutines.js index 39a14032..b4c7dda5 100644 --- a/src/modules/elementRoutines.js +++ b/src/modules/elementRoutines.js @@ -1,21 +1,29 @@ const hideClassToken = 'ng-ui-scroll-hide'; -function addCSSRule(sheet, selector, rules, index) { - if('insertRule' in sheet) { - sheet.insertRule(selector + '{' + rules + '}', index); - } - else if('addRule' in sheet) { - sheet.addRule(selector, rules, index); - } -} - export default class ElementRoutines { + static addCSSRules() { + const selector = '.' + hideClassToken; + const rules = 'display: none'; + const sheet = document.styleSheets[0]; + let index; + try { + index = sheet.cssRules.length; + } catch (err) { + index = 0; + } + if('insertRule' in sheet) { + sheet.insertRule(selector + '{' + rules + '}', index); + } + else if('addRule' in sheet) { + sheet.addRule(selector, rules, index); + } + } + constructor($injector, $q) { this.$animate = ($injector.has && $injector.has('$animate')) ? $injector.get('$animate') : null; this.isAngularVersionLessThen1_3 = angular.version.major === 1 && angular.version.minor < 3; this.$q = $q; - addCSSRule(document.styleSheets[0], '.' + hideClassToken, 'display: none'); } hideElement(wrapper) { diff --git a/src/ui-scroll.js b/src/ui-scroll.js index 3f70a02e..77a2e16b 100644 --- a/src/ui-scroll.js +++ b/src/ui-scroll.js @@ -7,9 +7,10 @@ import Adapter from './modules/adapter.js'; angular.module('ui.scroll', []) .constant('JQLiteExtras', JQLiteExtras) - .run(['JQLiteExtras', (JQLiteExtras) => - !window.jQuery ? (new JQLiteExtras()).registerFor(angular.element) : null - ]) + .run(['JQLiteExtras', (JQLiteExtras) => { + !window.jQuery ? (new JQLiteExtras()).registerFor(angular.element) : null; + ElementRoutines.addCSSRules(); + }]) .directive('uiScrollViewport', function () { return {