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* DevExtreme (esm/renovation/ui/scroll_view/common/consts.js)\r\n * Version: 21.2.15\r\n * Build date: Fri Dec 08 2023\r\n *\r\n * Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED\r\n * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/\r\n */\r\nexport var SCROLL_LINE_HEIGHT = 40;\r\nexport var DIRECTION_VERTICAL = \"vertical\";\r\nexport var DIRECTION_HORIZONTAL = \"horizontal\";\r\nexport var DIRECTION_BOTH = \"both\";\r\nexport var SCROLLABLE_SIMULATED_CLASS = \"dx-scrollable-simulated\";\r\nexport var SCROLLABLE_CONTENT_CLASS = \"dx-scrollable-content\";\r\nexport var SCROLLABLE_WRAPPER_CLASS = \"dx-scrollable-wrapper\";\r\nexport var SCROLLABLE_CONTAINER_CLASS = \"dx-scrollable-container\";\r\nexport var SCROLLABLE_DISABLED_CLASS = \"dx-scrollable-disabled\";\r\nexport var SCROLLABLE_SCROLLBAR_SIMULATED = \"dx-scrollable-scrollbar-simulated\";\r\nexport var SCROLLABLE_SCROLLBARS_HIDDEN = \"dx-scrollable-scrollbars-hidden\";\r\nexport var SCROLLABLE_SCROLLBARS_ALWAYSVISIBLE = \"dx-scrollable-scrollbars-alwaysvisible\";\r\nexport var SCROLLABLE_SCROLLBAR_CLASS = \"dx-scrollable-scrollbar\";\r\nexport var SCROLLABLE_SCROLLBAR_ACTIVE_CLASS = \"dx-scrollable-scrollbar-active\";\r\nexport var SCROLLABLE_SCROLL_CLASS = \"dx-scrollable-scroll\";\r\nexport var SCROLLABLE_SCROLL_CONTENT_CLASS = \"dx-scrollable-scroll-content\";\r\nexport var HOVER_ENABLED_STATE = \"dx-scrollbar-hoverable\";\r\nexport var SCROLLVIEW_CONTENT_CLASS = \"dx-scrollview-content\";\r\nexport var SCROLLVIEW_TOP_POCKET_CLASS = \"dx-scrollview-top-pocket\";\r\nexport var SCROLLVIEW_PULLDOWN = \"dx-scrollview-pull-down\";\r\nexport var SCROLLVIEW_PULLDOWN_LOADING_CLASS = \"dx-scrollview-pull-down-loading\";\r\nexport var SCROLLVIEW_PULLDOWN_READY_CLASS = \"dx-scrollview-pull-down-ready\";\r\nexport var SCROLLVIEW_PULLDOWN_IMAGE_CLASS = \"dx-scrollview-pull-down-image\";\r\nexport var SCROLLVIEW_PULLDOWN_INDICATOR_CLASS = \"dx-scrollview-pull-down-indicator\";\r\nexport var SCROLLVIEW_PULLDOWN_TEXT_CLASS = \"dx-scrollview-pull-down-text\";\r\nexport var SCROLLVIEW_PULLDOWN_VISIBLE_TEXT_CLASS = \"dx-scrollview-pull-down-text-visible\";\r\nexport var PULLDOWN_ICON_CLASS = \"dx-icon-pulldown\";\r\nexport var SCROLLVIEW_BOTTOM_POCKET_CLASS = \"dx-scrollview-bottom-pocket\";\r\nexport var SCROLLVIEW_REACHBOTTOM_CLASS = \"dx-scrollview-scrollbottom\";\r\nexport var SCROLLVIEW_REACHBOTTOM_INDICATOR_CLASS = \"dx-scrollview-scrollbottom-indicator\";\r\nexport var SCROLLVIEW_REACHBOTTOM_TEXT_CLASS = \"dx-scrollview-scrollbottom-text\";\r\nexport var TopPocketState = {\r\n STATE_RELEASED: 0,\r\n STATE_READY: 1,\r\n STATE_REFRESHING: 2,\r\n STATE_LOADING: 3,\r\n STATE_TOUCHED: 4,\r\n STATE_PULLED: 5\r\n};\r\nexport var ShowScrollbarMode = {\r\n HOVER: \"onHover\",\r\n ALWAYS: \"always\",\r\n NEVER: \"never\",\r\n SCROLL: \"onScroll\"\r\n};\r\nexport var KEY_CODES = {\r\n PAGE_UP: \"pageUp\",\r\n PAGE_DOWN: \"pageDown\",\r\n END: \"end\",\r\n HOME: \"home\",\r\n LEFT: \"leftArrow\",\r\n UP: \"upArrow\",\r\n RIGHT: \"rightArrow\",\r\n DOWN: \"downArrow\"\r\n};\r\nexport var VALIDATE_WHEEL_TIMEOUT = 500;\r\nexport var HIDE_SCROLLBAR_TIMEOUT = 500;\r\n","/**\r\n * DevExtreme (esm/renovation/ui/scroll_view/utils/get_relative_offset.js)\r\n * Version: 21.2.15\r\n * Build date: Fri Dec 08 2023\r\n *\r\n * Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED\r\n * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/\r\n */\r\nexport function getRelativeOffset(targetElementClass, sourceElement) {\r\n var offset = {\r\n left: 0,\r\n top: 0\r\n };\r\n var element = sourceElement;\r\n while (null !== (_element = element) && void 0 !== _element && _element.offsetParent && !element.classList.contains(targetElementClass)) {\r\n var _element;\r\n var parentElement = element.offsetParent;\r\n var elementRect = element.getBoundingClientRect();\r\n var parentElementRect = parentElement.getBoundingClientRect();\r\n offset.left += elementRect.left - parentElementRect.left;\r\n offset.top += elementRect.top - parentElementRect.top;\r\n element = element.offsetParent\r\n }\r\n return offset\r\n}\r\n","/**\r\n * DevExtreme (esm/ui/scroll_view/animator.js)\r\n * Version: 21.2.15\r\n * Build date: Fri Dec 08 2023\r\n *\r\n * Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED\r\n * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/\r\n */\r\nimport {\r\n noop\r\n} from \"../../core/utils/common\";\r\nimport Class from \"../../core/class\";\r\nvar abstract = Class.abstract;\r\nimport {\r\n requestAnimationFrame,\r\n cancelAnimationFrame\r\n} from \"../../animation/frame\";\r\nvar Animator = Class.inherit({\r\n ctor: function() {\r\n this._finished = true;\r\n this._stopped = false;\r\n this._proxiedStepCore = this._stepCore.bind(this)\r\n },\r\n start: function() {\r\n this._stopped = false;\r\n this._finished = false;\r\n this._stepCore()\r\n },\r\n stop: function() {\r\n this._stopped = true;\r\n cancelAnimationFrame(this._stepAnimationFrame)\r\n },\r\n _stepCore: function() {\r\n if (this._isStopped()) {\r\n this._stop();\r\n return\r\n }\r\n if (this._isFinished()) {\r\n this._finished = true;\r\n this._complete();\r\n return\r\n }\r\n this._step();\r\n this._stepAnimationFrame = requestAnimationFrame(this._proxiedStepCore)\r\n },\r\n _step: abstract,\r\n _isFinished: noop,\r\n _stop: noop,\r\n _complete: noop,\r\n _isStopped: function() {\r\n return this._stopped\r\n },\r\n inProgress: function() {\r\n return !(this._stopped || this._finished)\r\n }\r\n});\r\nexport default Animator;\r\n","/**\r\n * DevExtreme (esm/ui/scroll_view/ui.scrollable.device.js)\r\n * Version: 21.2.15\r\n * Build date: Fri Dec 08 2023\r\n *\r\n * Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED\r\n * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/\r\n */\r\nimport devices from \"../../core/devices\";\r\nimport {\r\n nativeScrolling,\r\n touch\r\n} from \"../../core/utils/support\";\r\nexport var deviceDependentOptions = function() {\r\n return [{\r\n device: function() {\r\n return !nativeScrolling\r\n },\r\n options: {\r\n useNative: false\r\n }\r\n }, {\r\n device: function(_device) {\r\n return !devices.isSimulator() && \"desktop\" === devices.real().deviceType && \"generic\" === _device.platform\r\n },\r\n options: {\r\n bounceEnabled: false,\r\n scrollByThumb: true,\r\n scrollByContent: touch,\r\n showScrollbar: \"onHover\"\r\n }\r\n }]\r\n};\r\n","/**\r\n * DevExtreme (esm/renovation/ui/scroll_view/utils/get_element_location_internal.js)\r\n * Version: 21.2.15\r\n * Build date: Fri Dec 08 2023\r\n *\r\n * Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED\r\n * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/\r\n */\r\nimport _extends from \"@babel/runtime/helpers/esm/extends\";\r\nimport {\r\n titleize\r\n} from \"../../../../core/utils/inflector\";\r\nimport {\r\n getRelativeOffset\r\n} from \"./get_relative_offset\";\r\nimport {\r\n DIRECTION_VERTICAL,\r\n SCROLLABLE_CONTENT_CLASS\r\n} from \"../common/consts\";\r\nexport function getElementLocationInternal(targetElement, direction, containerElement, scrollOffset, offset) {\r\n var additionalOffset = _extends({\r\n top: 0,\r\n left: 0,\r\n right: 0,\r\n bottom: 0\r\n }, offset);\r\n var isVertical = direction === DIRECTION_VERTICAL;\r\n var prop = isVertical ? \"top\" : \"left\";\r\n var inverseProp = isVertical ? \"bottom\" : \"right\";\r\n var dimension = isVertical ? \"height\" : \"width\";\r\n var containerOffsetSize = containerElement[\"offset\".concat(titleize(dimension))];\r\n var containerClientSize = containerElement[\"client\".concat(titleize(dimension))];\r\n var containerSize = containerElement.getBoundingClientRect()[dimension];\r\n var elementSize = targetElement.getBoundingClientRect()[dimension];\r\n var scale = 1;\r\n if (Math.abs(containerSize - containerOffsetSize) > 1) {\r\n scale = containerSize / containerOffsetSize\r\n }\r\n var relativeElementOffset = getRelativeOffset(SCROLLABLE_CONTENT_CLASS, targetElement)[prop] / scale;\r\n var containerScrollOffset = scrollOffset[prop];\r\n var relativeStartOffset = containerScrollOffset - relativeElementOffset + additionalOffset[prop];\r\n var relativeEndOffset = containerScrollOffset - relativeElementOffset - elementSize / scale + containerClientSize - additionalOffset[inverseProp];\r\n if (relativeStartOffset <= 0 && relativeEndOffset >= 0) {\r\n return containerScrollOffset\r\n }\r\n return containerScrollOffset - (Math.abs(relativeStartOffset) > Math.abs(relativeEndOffset) ? relativeEndOffset : relativeStartOffset)\r\n}\r\n","/**\r\n * DevExtreme (esm/ui/scroll_view/ui.scrollable.js)\r\n * Version: 21.2.15\r\n * Build date: Fri Dec 08 2023\r\n *\r\n * Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED\r\n * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/\r\n */\r\nimport {\r\n getHeight,\r\n getOuterHeight,\r\n getWidth,\r\n getOuterWidth\r\n} from \"../../core/utils/size\";\r\nimport $ from \"../../core/renderer\";\r\nimport eventsEngine from \"../../events/core/events_engine\";\r\nimport {\r\n nativeScrolling\r\n} from \"../../core/utils/support\";\r\nimport browser from \"../../core/utils/browser\";\r\nimport {\r\n ensureDefined\r\n} from \"../../core/utils/common\";\r\nimport {\r\n isPlainObject,\r\n isDefined\r\n} from \"../../core/utils/type\";\r\nimport {\r\n extend\r\n} from \"../../core/utils/extend\";\r\nimport {\r\n getPublicElement\r\n} from \"../../core/element\";\r\nimport {\r\n hasWindow\r\n} from \"../../core/utils/window\";\r\nimport devices from \"../../core/devices\";\r\nimport registerComponent from \"../../core/component_registrator\";\r\nimport DOMComponent from \"../../core/dom_component\";\r\nimport {\r\n addNamespace\r\n} from \"../../events/utils/index\";\r\nimport scrollEvents from \"../../events/gesture/emitter.gesture.scroll\";\r\nimport {\r\n SimulatedStrategy\r\n} from \"./ui.scrollable.simulated\";\r\nimport NativeStrategy from \"./ui.scrollable.native\";\r\nimport {\r\n deviceDependentOptions\r\n} from \"./ui.scrollable.device\";\r\nimport {\r\n when\r\n} from \"../../core/utils/deferred\";\r\nimport {\r\n getElementLocationInternal\r\n} from \"../../renovation/ui/scroll_view/utils/get_element_location_internal\";\r\nvar SCROLLABLE = \"dxScrollable\";\r\nvar SCROLLABLE_STRATEGY = \"dxScrollableStrategy\";\r\nvar SCROLLABLE_CLASS = \"dx-scrollable\";\r\nvar SCROLLABLE_DISABLED_CLASS = \"dx-scrollable-disabled\";\r\nvar SCROLLABLE_CONTAINER_CLASS = \"dx-scrollable-container\";\r\nvar SCROLLABLE_WRAPPER_CLASS = \"dx-scrollable-wrapper\";\r\nvar SCROLLABLE_CONTENT_CLASS = \"dx-scrollable-content\";\r\nvar VERTICAL = \"vertical\";\r\nvar HORIZONTAL = \"horizontal\";\r\nvar BOTH = \"both\";\r\nvar Scrollable = DOMComponent.inherit({\r\n _getDefaultOptions: function() {\r\n return extend(this.callBase(), {\r\n disabled: false,\r\n onScroll: null,\r\n direction: VERTICAL,\r\n showScrollbar: \"onScroll\",\r\n useNative: true,\r\n bounceEnabled: true,\r\n scrollByContent: true,\r\n scrollByThumb: false,\r\n onUpdated: null,\r\n onStart: null,\r\n onEnd: null,\r\n onBounce: null,\r\n useSimulatedScrollbar: false,\r\n useKeyboard: true,\r\n inertiaEnabled: true,\r\n updateManually: false\r\n })\r\n },\r\n _defaultOptionsRules: function() {\r\n return this.callBase().concat(deviceDependentOptions(), [{\r\n device: function() {\r\n return nativeScrolling && \"android\" === devices.real().platform && !browser.mozilla\r\n },\r\n options: {\r\n useSimulatedScrollbar: true\r\n }\r\n }])\r\n },\r\n _initOptions: function(options) {\r\n this.callBase(options);\r\n if (!(\"useSimulatedScrollbar\" in options)) {\r\n this._setUseSimulatedScrollbar()\r\n }\r\n },\r\n _setUseSimulatedScrollbar: function() {\r\n if (!this.initialOption(\"useSimulatedScrollbar\")) {\r\n this.option(\"useSimulatedScrollbar\", !this.option(\"useNative\"))\r\n }\r\n },\r\n _init: function() {\r\n this.callBase();\r\n this._initScrollableMarkup();\r\n this._locked = false\r\n },\r\n _visibilityChanged: function(visible) {\r\n if (visible) {\r\n this.update();\r\n this._updateRtlPosition();\r\n this._savedScrollOffset && this.scrollTo(this._savedScrollOffset);\r\n delete this._savedScrollOffset\r\n } else {\r\n this._savedScrollOffset = this.scrollOffset()\r\n }\r\n },\r\n _initScrollableMarkup: function() {\r\n var $element = this.$element().addClass(SCROLLABLE_CLASS);\r\n var $container = this._$container = $(\"
\").addClass(SCROLLABLE_CONTAINER_CLASS);\r\n var $wrapper = this._$wrapper = $(\"
\").addClass(SCROLLABLE_WRAPPER_CLASS);\r\n var $content = this._$content = $(\"
\").addClass(SCROLLABLE_CONTENT_CLASS);\r\n $content.append($element.contents()).appendTo($container);\r\n $container.appendTo($wrapper);\r\n $wrapper.appendTo($element)\r\n },\r\n _dimensionChanged: function() {\r\n this.update();\r\n this._updateRtlPosition()\r\n },\r\n _initMarkup: function() {\r\n this.callBase();\r\n this._renderDirection()\r\n },\r\n _render: function() {\r\n this._renderStrategy();\r\n this._attachEventHandlers();\r\n this._renderDisabledState();\r\n this._createActions();\r\n this.update();\r\n this.callBase();\r\n this._updateRtlPosition(true)\r\n },\r\n _updateRtlPosition: function(needInitializeRtlConfig) {\r\n this._strategy.updateRtlPosition(needInitializeRtlConfig)\r\n },\r\n _getMaxOffset: function() {\r\n var {\r\n scrollWidth: scrollWidth,\r\n clientWidth: clientWidth,\r\n scrollHeight: scrollHeight,\r\n clientHeight: clientHeight\r\n } = $(this.container()).get(0);\r\n return {\r\n left: scrollWidth - clientWidth,\r\n top: scrollHeight - clientHeight\r\n }\r\n },\r\n _attachEventHandlers: function() {\r\n var strategy = this._strategy;\r\n var initEventData = {\r\n getDirection: strategy.getDirection.bind(strategy),\r\n validate: this._validate.bind(this),\r\n isNative: this.option(\"useNative\"),\r\n scrollTarget: this._$container\r\n };\r\n eventsEngine.off(this._$wrapper, \".\" + SCROLLABLE);\r\n eventsEngine.on(this._$wrapper, addNamespace(scrollEvents.init, SCROLLABLE), initEventData, this._initHandler.bind(this));\r\n eventsEngine.on(this._$wrapper, addNamespace(scrollEvents.start, SCROLLABLE), strategy.handleStart.bind(strategy));\r\n eventsEngine.on(this._$wrapper, addNamespace(scrollEvents.move, SCROLLABLE), strategy.handleMove.bind(strategy));\r\n eventsEngine.on(this._$wrapper, addNamespace(scrollEvents.end, SCROLLABLE), strategy.handleEnd.bind(strategy));\r\n eventsEngine.on(this._$wrapper, addNamespace(scrollEvents.cancel, SCROLLABLE), strategy.handleCancel.bind(strategy));\r\n eventsEngine.on(this._$wrapper, addNamespace(scrollEvents.stop, SCROLLABLE), strategy.handleStop.bind(strategy));\r\n eventsEngine.off(this._$container, \".\" + SCROLLABLE);\r\n eventsEngine.on(this._$container, addNamespace(\"scroll\", SCROLLABLE), strategy.handleScroll.bind(strategy))\r\n },\r\n _validate: function(e) {\r\n if (this._isLocked()) {\r\n return false\r\n }\r\n this._updateIfNeed();\r\n return this._moveIsAllowed(e)\r\n },\r\n _moveIsAllowed(e) {\r\n return this._strategy.validate(e)\r\n },\r\n handleMove(e) {\r\n this._strategy.handleMove(e)\r\n },\r\n _prepareDirections(value) {\r\n this._strategy._prepareDirections(value)\r\n },\r\n _initHandler: function() {\r\n var strategy = this._strategy;\r\n strategy.handleInit.apply(strategy, arguments)\r\n },\r\n _renderDisabledState: function() {\r\n this.$element().toggleClass(SCROLLABLE_DISABLED_CLASS, this.option(\"disabled\"));\r\n if (this.option(\"disabled\")) {\r\n this._lock()\r\n } else {\r\n this._unlock()\r\n }\r\n },\r\n _renderDirection: function() {\r\n this.$element().removeClass(\"dx-scrollable-\" + HORIZONTAL).removeClass(\"dx-scrollable-\" + VERTICAL).removeClass(\"dx-scrollable-\" + BOTH).addClass(\"dx-scrollable-\" + this.option(\"direction\"))\r\n },\r\n _renderStrategy: function() {\r\n this._createStrategy();\r\n this._strategy.render();\r\n this.$element().data(SCROLLABLE_STRATEGY, this._strategy)\r\n },\r\n _createStrategy: function() {\r\n this._strategy = this.option(\"useNative\") ? new NativeStrategy(this) : new SimulatedStrategy(this)\r\n },\r\n _createActions: function() {\r\n this._strategy && this._strategy.createActions()\r\n },\r\n _clean: function() {\r\n this._strategy && this._strategy.dispose()\r\n },\r\n _optionChanged: function(args) {\r\n switch (args.name) {\r\n case \"onStart\":\r\n case \"onEnd\":\r\n case \"onUpdated\":\r\n case \"onScroll\":\r\n case \"onBounce\":\r\n this._createActions();\r\n break;\r\n case \"direction\":\r\n this._resetInactiveDirection();\r\n this._invalidate();\r\n break;\r\n case \"useNative\":\r\n this._setUseSimulatedScrollbar();\r\n this._invalidate();\r\n break;\r\n case \"inertiaEnabled\":\r\n case \"scrollByThumb\":\r\n case \"bounceEnabled\":\r\n case \"useKeyboard\":\r\n case \"showScrollbar\":\r\n case \"useSimulatedScrollbar\":\r\n this._invalidate();\r\n break;\r\n case \"disabled\":\r\n this._renderDisabledState();\r\n this._strategy && this._strategy.disabledChanged();\r\n break;\r\n case \"updateManually\":\r\n case \"scrollByContent\":\r\n break;\r\n case \"width\":\r\n this.callBase(args);\r\n this._updateRtlPosition();\r\n break;\r\n default:\r\n this.callBase(args)\r\n }\r\n },\r\n _resetInactiveDirection: function() {\r\n var inactiveProp = this._getInactiveProp();\r\n if (!inactiveProp || !hasWindow()) {\r\n return\r\n }\r\n var scrollOffset = this.scrollOffset();\r\n scrollOffset[inactiveProp] = 0;\r\n this.scrollTo(scrollOffset)\r\n },\r\n _getInactiveProp: function() {\r\n var direction = this.option(\"direction\");\r\n if (direction === VERTICAL) {\r\n return \"left\"\r\n }\r\n if (direction === HORIZONTAL) {\r\n return \"top\"\r\n }\r\n },\r\n _location: function() {\r\n return this._strategy.location()\r\n },\r\n _normalizeLocation: function(location) {\r\n if (isPlainObject(location)) {\r\n var left = ensureDefined(location.left, location.x);\r\n var top = ensureDefined(location.top, location.y);\r\n return {\r\n left: isDefined(left) ? -left : void 0,\r\n top: isDefined(top) ? -top : void 0\r\n }\r\n } else {\r\n var direction = this.option(\"direction\");\r\n return {\r\n left: direction !== VERTICAL ? -location : void 0,\r\n top: direction !== HORIZONTAL ? -location : void 0\r\n }\r\n }\r\n },\r\n _isLocked: function() {\r\n return this._locked\r\n },\r\n _lock: function() {\r\n this._locked = true\r\n },\r\n _unlock: function() {\r\n if (!this.option(\"disabled\")) {\r\n this._locked = false\r\n }\r\n },\r\n _isDirection: function(direction) {\r\n var current = this.option(\"direction\");\r\n if (direction === VERTICAL) {\r\n return current !== HORIZONTAL\r\n }\r\n if (direction === HORIZONTAL) {\r\n return current !== VERTICAL\r\n }\r\n return current === direction\r\n },\r\n _updateAllowedDirection: function() {\r\n var allowedDirections = this._strategy._allowedDirections();\r\n if (this._isDirection(BOTH) && allowedDirections.vertical && allowedDirections.horizontal) {\r\n this._allowedDirectionValue = BOTH\r\n } else if (this._isDirection(HORIZONTAL) && allowedDirections.horizontal) {\r\n this._allowedDirectionValue = HORIZONTAL\r\n } else if (this._isDirection(VERTICAL) && allowedDirections.vertical) {\r\n this._allowedDirectionValue = VERTICAL\r\n } else {\r\n this._allowedDirectionValue = null\r\n }\r\n },\r\n _allowedDirection: function() {\r\n return this._allowedDirectionValue\r\n },\r\n $content: function() {\r\n return this._$content\r\n },\r\n content: function() {\r\n return getPublicElement(this._$content)\r\n },\r\n container: function() {\r\n return getPublicElement(this._$container)\r\n },\r\n scrollOffset: function() {\r\n return this._strategy._getScrollOffset()\r\n },\r\n _isRtlNativeStrategy: function() {\r\n var {\r\n useNative: useNative,\r\n rtlEnabled: rtlEnabled\r\n } = this.option();\r\n return useNative && rtlEnabled\r\n },\r\n scrollTop: function() {\r\n return this.scrollOffset().top\r\n },\r\n scrollLeft: function() {\r\n return this.scrollOffset().left\r\n },\r\n clientHeight: function() {\r\n return getHeight(this._$container)\r\n },\r\n scrollHeight: function() {\r\n return getOuterHeight(this.$content())\r\n },\r\n clientWidth: function() {\r\n return getWidth(this._$container)\r\n },\r\n scrollWidth: function() {\r\n return getOuterWidth(this.$content())\r\n },\r\n update: function() {\r\n if (!this._strategy) {\r\n return\r\n }\r\n return when(this._strategy.update()).done(function() {\r\n this._updateAllowedDirection()\r\n }.bind(this))\r\n },\r\n scrollBy: function(distance) {\r\n distance = this._normalizeLocation(distance);\r\n if (!distance.top && !distance.left) {\r\n return\r\n }\r\n this._updateIfNeed();\r\n this._strategy.scrollBy(distance)\r\n },\r\n scrollTo: function(targetLocation) {\r\n targetLocation = this._normalizeLocation(targetLocation);\r\n this._updateIfNeed();\r\n var location = this._location();\r\n if (!this.option(\"useNative\")) {\r\n targetLocation = this._strategy._applyScaleRatio(targetLocation);\r\n location = this._strategy._applyScaleRatio(location)\r\n }\r\n if (this._isRtlNativeStrategy()) {\r\n location.left = location.left - this._getMaxOffset().left\r\n }\r\n var distance = this._normalizeLocation({\r\n left: location.left - ensureDefined(targetLocation.left, location.left),\r\n top: location.top - ensureDefined(targetLocation.top, location.top)\r\n });\r\n if (!distance.top && !distance.left) {\r\n return\r\n }\r\n this._strategy.scrollBy(distance)\r\n },\r\n scrollToElement: function(element, offset) {\r\n var $element = $(element);\r\n var elementInsideContent = this.$content().find(element).length;\r\n var elementIsInsideContent = $element.parents(\".\" + SCROLLABLE_CLASS).length - $element.parents(\".\" + SCROLLABLE_CONTENT_CLASS).length === 0;\r\n if (!elementInsideContent || !elementIsInsideContent) {\r\n return\r\n }\r\n var scrollPosition = {\r\n top: 0,\r\n left: 0\r\n };\r\n var direction = this.option(\"direction\");\r\n if (direction !== VERTICAL) {\r\n scrollPosition.left = this.getScrollElementPosition($element, HORIZONTAL, offset)\r\n }\r\n if (direction !== HORIZONTAL) {\r\n scrollPosition.top = this.getScrollElementPosition($element, VERTICAL, offset)\r\n }\r\n this.scrollTo(scrollPosition)\r\n },\r\n getScrollElementPosition: function($element, direction, offset) {\r\n var scrollOffset = this.scrollOffset();\r\n return getElementLocationInternal($element.get(0), direction, $(this.container()).get(0), scrollOffset, offset)\r\n },\r\n _updateIfNeed: function() {\r\n if (!this.option(\"updateManually\")) {\r\n this.update()\r\n }\r\n },\r\n _useTemplates: function() {\r\n return false\r\n },\r\n isRenovated: function() {\r\n return !!Scrollable.IS_RENOVATED_WIDGET\r\n }\r\n});\r\nregisterComponent(SCROLLABLE, Scrollable);\r\nexport default Scrollable;\r\n","/**\r\n * DevExtreme (esm/ui/scroll_view/ui.scrollable.native.js)\r\n * Version: 21.2.15\r\n * Build date: Fri Dec 08 2023\r\n *\r\n * Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED\r\n * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/\r\n */\r\nimport {\r\n getHeight,\r\n getWidth\r\n} from \"../../core/utils/size\";\r\nimport $ from \"../../core/renderer\";\r\nimport eventsEngine from \"../../events/core/events_engine\";\r\nimport {\r\n isDxMouseWheelEvent\r\n} from \"../../events/utils/index\";\r\nimport {\r\n noop\r\n} from \"../../core/utils/common\";\r\nimport {\r\n each\r\n} from \"../../core/utils/iterator\";\r\nimport devices from \"../../core/devices\";\r\nimport Class from \"../../core/class\";\r\nimport Scrollbar from \"./ui.scrollbar\";\r\nvar SCROLLABLE_NATIVE = \"dxNativeScrollable\";\r\nvar SCROLLABLE_NATIVE_CLASS = \"dx-scrollable-native\";\r\nvar SCROLLABLE_SCROLLBAR_SIMULATED = \"dx-scrollable-scrollbar-simulated\";\r\nvar SCROLLABLE_SCROLLBARS_HIDDEN = \"dx-scrollable-scrollbars-hidden\";\r\nvar VERTICAL = \"vertical\";\r\nvar HORIZONTAL = \"horizontal\";\r\nvar HIDE_SCROLLBAR_TIMEOUT = 500;\r\nvar NativeStrategy = Class.inherit({\r\n ctor: function(scrollable) {\r\n this._init(scrollable)\r\n },\r\n _init: function(scrollable) {\r\n this._component = scrollable;\r\n this._$element = scrollable.$element();\r\n this._$container = $(scrollable.container());\r\n this._$content = scrollable.$content();\r\n this._direction = scrollable.option(\"direction\");\r\n this._useSimulatedScrollbar = scrollable.option(\"useSimulatedScrollbar\");\r\n this.option = scrollable.option.bind(scrollable);\r\n this._createActionByOption = scrollable._createActionByOption.bind(scrollable);\r\n this._isLocked = scrollable._isLocked.bind(scrollable);\r\n this._isDirection = scrollable._isDirection.bind(scrollable);\r\n this._allowedDirection = scrollable._allowedDirection.bind(scrollable);\r\n this._getMaxOffset = scrollable._getMaxOffset.bind(scrollable);\r\n this._isRtlNativeStrategy = scrollable._isRtlNativeStrategy.bind(scrollable)\r\n },\r\n render: function() {\r\n var device = devices.real();\r\n var deviceType = device.platform;\r\n this._$element.addClass(SCROLLABLE_NATIVE_CLASS).addClass(SCROLLABLE_NATIVE_CLASS + \"-\" + deviceType).toggleClass(SCROLLABLE_SCROLLBARS_HIDDEN, !this._isScrollbarVisible());\r\n if (this._isScrollbarVisible() && this._useSimulatedScrollbar) {\r\n this._renderScrollbars()\r\n }\r\n },\r\n updateRtlPosition: function(isFirstRender) {\r\n if (isFirstRender && this.option(\"rtlEnabled\")) {\r\n if (this._isScrollbarVisible() && this._useSimulatedScrollbar) {\r\n this._moveScrollbars()\r\n }\r\n }\r\n },\r\n _renderScrollbars: function() {\r\n this._scrollbars = {};\r\n this._hideScrollbarTimeout = 0;\r\n this._$element.addClass(SCROLLABLE_SCROLLBAR_SIMULATED);\r\n this._renderScrollbar(VERTICAL);\r\n this._renderScrollbar(HORIZONTAL)\r\n },\r\n _renderScrollbar: function(direction) {\r\n if (!this._isDirection(direction)) {\r\n return\r\n }\r\n this._scrollbars[direction] = new Scrollbar($(\"
\").appendTo(this._$element), {\r\n direction: direction,\r\n expandable: this._component.option(\"scrollByThumb\")\r\n })\r\n },\r\n handleInit: noop,\r\n handleStart: noop,\r\n handleMove: function(e) {\r\n if (this._isLocked()) {\r\n e.cancel = true;\r\n return\r\n }\r\n if (this._allowedDirection()) {\r\n e.originalEvent.isScrollingEvent = true\r\n }\r\n },\r\n handleEnd: noop,\r\n handleCancel: noop,\r\n handleStop: noop,\r\n _eachScrollbar: function(callback) {\r\n callback = callback.bind(this);\r\n each(this._scrollbars || {}, (function(direction, scrollbar) {\r\n callback(scrollbar, direction)\r\n }))\r\n },\r\n createActions: function() {\r\n this._scrollAction = this._createActionByOption(\"onScroll\");\r\n this._updateAction = this._createActionByOption(\"onUpdated\")\r\n },\r\n _createActionArgs: function() {\r\n var {\r\n left: left,\r\n top: top\r\n } = this.location();\r\n return {\r\n event: this._eventForUserAction,\r\n scrollOffset: this._getScrollOffset(),\r\n reachedLeft: this._isRtlNativeStrategy() ? this._isReachedRight(-left) : this._isReachedLeft(left),\r\n reachedRight: this._isRtlNativeStrategy() ? this._isReachedLeft(-Math.abs(left)) : this._isReachedRight(left),\r\n reachedTop: this._isDirection(VERTICAL) ? Math.round(top) >= 0 : void 0,\r\n reachedBottom: this._isDirection(VERTICAL) ? Math.round(Math.abs(top) - this._getMaxOffset().top) >= 0 : void 0\r\n }\r\n },\r\n _getScrollOffset: function() {\r\n var {\r\n top: top,\r\n left: left\r\n } = this.location();\r\n return {\r\n top: -top,\r\n left: this._normalizeOffsetLeft(-left)\r\n }\r\n },\r\n _normalizeOffsetLeft(scrollLeft) {\r\n if (this._isRtlNativeStrategy()) {\r\n return this._getMaxOffset().left + scrollLeft\r\n }\r\n return scrollLeft\r\n },\r\n _isReachedLeft: function(left) {\r\n return this._isDirection(HORIZONTAL) ? Math.round(left) >= 0 : void 0\r\n },\r\n _isReachedRight: function(left) {\r\n return this._isDirection(HORIZONTAL) ? Math.round(Math.abs(left) - this._getMaxOffset().left) >= 0 : void 0\r\n },\r\n _isScrollbarVisible: function() {\r\n var {\r\n showScrollbar: showScrollbar\r\n } = this.option();\r\n return \"never\" !== showScrollbar && false !== showScrollbar\r\n },\r\n handleScroll: function(e) {\r\n this._eventForUserAction = e;\r\n this._moveScrollbars();\r\n this._scrollAction(this._createActionArgs())\r\n },\r\n _moveScrollbars: function() {\r\n var {\r\n top: top,\r\n left: left\r\n } = this._getScrollOffset();\r\n this._eachScrollbar((function(scrollbar) {\r\n scrollbar.moveTo({\r\n top: -top,\r\n left: -left\r\n });\r\n scrollbar.option(\"visible\", true)\r\n }));\r\n this._hideScrollbars()\r\n },\r\n _hideScrollbars: function() {\r\n clearTimeout(this._hideScrollbarTimeout);\r\n this._hideScrollbarTimeout = setTimeout(function() {\r\n this._eachScrollbar((function(scrollbar) {\r\n scrollbar.option(\"visible\", false)\r\n }))\r\n }.bind(this), HIDE_SCROLLBAR_TIMEOUT)\r\n },\r\n location: function() {\r\n return {\r\n left: -this._$container.scrollLeft(),\r\n top: -this._$container.scrollTop()\r\n }\r\n },\r\n disabledChanged: noop,\r\n update: function() {\r\n this._update();\r\n this._updateAction(this._createActionArgs())\r\n },\r\n _update: function() {\r\n this._updateDimensions();\r\n this._updateScrollbars()\r\n },\r\n _updateDimensions: function() {\r\n this._containerSize = {\r\n height: getHeight(this._$container),\r\n width: getWidth(this._$container)\r\n };\r\n this._componentContentSize = {\r\n height: getHeight(this._component.$content()),\r\n width: getWidth(this._component.$content())\r\n };\r\n this._contentSize = {\r\n height: getHeight(this._$content),\r\n width: getWidth(this._$content)\r\n }\r\n },\r\n _updateScrollbars: function() {\r\n this._eachScrollbar((function(scrollbar, direction) {\r\n var dimension = direction === VERTICAL ? \"height\" : \"width\";\r\n scrollbar.option({\r\n containerSize: this._containerSize[dimension],\r\n contentSize: this._componentContentSize[dimension]\r\n });\r\n scrollbar.update()\r\n }))\r\n },\r\n _allowedDirections: function() {\r\n return {\r\n vertical: this._isDirection(VERTICAL) && this._contentSize.height > this._containerSize.height,\r\n horizontal: this._isDirection(HORIZONTAL) && this._contentSize.width > this._containerSize.width\r\n }\r\n },\r\n dispose: function() {\r\n var className = this._$element.get(0).className;\r\n var scrollableNativeRegexp = new RegExp(SCROLLABLE_NATIVE_CLASS + \"\\\\S*\", \"g\");\r\n if (scrollableNativeRegexp.test(className)) {\r\n this._$element.removeClass(className.match(scrollableNativeRegexp).join(\" \"))\r\n }\r\n eventsEngine.off(this._$element, \".\" + SCROLLABLE_NATIVE);\r\n eventsEngine.off(this._$container, \".\" + SCROLLABLE_NATIVE);\r\n this._removeScrollbars();\r\n clearTimeout(this._hideScrollbarTimeout)\r\n },\r\n _removeScrollbars: function() {\r\n this._eachScrollbar((function(scrollbar) {\r\n scrollbar.$element().remove()\r\n }))\r\n },\r\n scrollBy: function(distance) {\r\n var location = this.location();\r\n this._$container.scrollTop(Math.round(-location.top - distance.top));\r\n this._$container.scrollLeft(Math.round(-location.left - distance.left))\r\n },\r\n validate: function(e) {\r\n if (this.option(\"disabled\")) {\r\n return false\r\n }\r\n if (isDxMouseWheelEvent(e) && this._isScrolledInMaxDirection(e)) {\r\n return false\r\n }\r\n return !!this._allowedDirection()\r\n },\r\n _isScrolledInMaxDirection(e) {\r\n var container = this._$container.get(0);\r\n var result;\r\n if (e.delta > 0) {\r\n result = e.shiftKey ? !container.scrollLeft : !container.scrollTop\r\n } else if (e.shiftKey) {\r\n result = container.scrollLeft >= this._getMaxOffset().left\r\n } else {\r\n result = container.scrollTop >= this._getMaxOffset().top\r\n }\r\n return result\r\n },\r\n getDirection: function() {\r\n return this._allowedDirection()\r\n }\r\n});\r\nexport default NativeStrategy;\r\n","/**\r\n * DevExtreme (esm/ui/scroll_view/ui.scrollable.simulated.js)\r\n * Version: 21.2.15\r\n * Build date: Fri Dec 08 2023\r\n *\r\n * Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED\r\n * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/\r\n */\r\nimport {\r\n getHeight,\r\n getWidth\r\n} from \"../../core/utils/size\";\r\nimport $ from \"../../core/renderer\";\r\nimport domAdapter from \"../../core/dom_adapter\";\r\nimport eventsEngine from \"../../events/core/events_engine\";\r\nimport {\r\n titleize\r\n} from \"../../core/utils/inflector\";\r\nimport {\r\n extend\r\n} from \"../../core/utils/extend\";\r\nimport {\r\n getWindow,\r\n hasWindow\r\n} from \"../../core/utils/window\";\r\nimport {\r\n each,\r\n map\r\n} from \"../../core/utils/iterator\";\r\nimport {\r\n isDefined\r\n} from \"../../core/utils/type\";\r\nimport {\r\n getBoundingRect\r\n} from \"../../core/utils/position\";\r\nimport {\r\n resetPosition,\r\n move,\r\n locate\r\n} from \"../../animation/translator\";\r\nimport Class from \"../../core/class\";\r\nimport Animator from \"./animator\";\r\nimport {\r\n isDxMouseWheelEvent,\r\n addNamespace as addEventNamespace,\r\n normalizeKeyName,\r\n isCommandKeyPressed\r\n} from \"../../events/utils/index\";\r\nimport {\r\n deferUpdate,\r\n deferUpdater,\r\n deferRender,\r\n deferRenderer,\r\n noop\r\n} from \"../../core/utils/common\";\r\nimport Scrollbar from \"./ui.scrollbar\";\r\nimport {\r\n when,\r\n Deferred\r\n} from \"../../core/utils/deferred\";\r\nvar SCROLLABLE_SIMULATED = \"dxSimulatedScrollable\";\r\nvar SCROLLABLE_STRATEGY = \"dxScrollableStrategy\";\r\nvar SCROLLABLE_SIMULATED_CURSOR = SCROLLABLE_SIMULATED + \"Cursor\";\r\nvar SCROLLABLE_SIMULATED_KEYBOARD = SCROLLABLE_SIMULATED + \"Keyboard\";\r\nvar SCROLLABLE_SIMULATED_CLASS = \"dx-scrollable-simulated\";\r\nvar SCROLLABLE_SCROLLBARS_ALWAYSVISIBLE = \"dx-scrollable-scrollbars-alwaysvisible\";\r\nvar SCROLLABLE_SCROLLBAR_CLASS = \"dx-scrollable-scrollbar\";\r\nvar VERTICAL = \"vertical\";\r\nvar HORIZONTAL = \"horizontal\";\r\nvar ACCELERATION = .92;\r\nvar OUT_BOUNDS_ACCELERATION = .5;\r\nvar MIN_VELOCITY_LIMIT = 1;\r\nvar FRAME_DURATION = Math.round(1e3 / 60);\r\nvar SCROLL_LINE_HEIGHT = 40;\r\nvar VALIDATE_WHEEL_TIMEOUT = 500;\r\nvar BOUNCE_MIN_VELOCITY_LIMIT = MIN_VELOCITY_LIMIT / 5;\r\nvar BOUNCE_DURATION = 400;\r\nvar BOUNCE_FRAMES = BOUNCE_DURATION / FRAME_DURATION;\r\nvar BOUNCE_ACCELERATION_SUM = (1 - Math.pow(ACCELERATION, BOUNCE_FRAMES)) / (1 - ACCELERATION);\r\nvar KEY_CODES = {\r\n PAGE_UP: \"pageUp\",\r\n PAGE_DOWN: \"pageDown\",\r\n END: \"end\",\r\n HOME: \"home\",\r\n LEFT: \"leftArrow\",\r\n UP: \"upArrow\",\r\n RIGHT: \"rightArrow\",\r\n DOWN: \"downArrow\",\r\n TAB: \"tab\"\r\n};\r\nvar InertiaAnimator = Animator.inherit({\r\n ctor: function(scroller) {\r\n this.callBase();\r\n this.scroller = scroller\r\n },\r\n VELOCITY_LIMIT: MIN_VELOCITY_LIMIT,\r\n _isFinished: function() {\r\n return Math.abs(this.scroller._velocity) <= this.VELOCITY_LIMIT\r\n },\r\n _step: function() {\r\n this.scroller._scrollStep(this.scroller._velocity);\r\n this.scroller._velocity *= this._acceleration()\r\n },\r\n _acceleration: function() {\r\n return this.scroller._inBounds() ? ACCELERATION : OUT_BOUNDS_ACCELERATION\r\n },\r\n _complete: function() {\r\n this.scroller._scrollComplete()\r\n }\r\n});\r\nvar BounceAnimator = InertiaAnimator.inherit({\r\n VELOCITY_LIMIT: BOUNCE_MIN_VELOCITY_LIMIT,\r\n _isFinished: function() {\r\n return this.scroller._crossBoundOnNextStep() || this.callBase()\r\n },\r\n _acceleration: function() {\r\n return ACCELERATION\r\n },\r\n _complete: function() {\r\n this.scroller._move(this.scroller._bounceLocation);\r\n this.callBase()\r\n }\r\n});\r\nexport var Scroller = Class.inherit({\r\n ctor: function(options) {\r\n this._initOptions(options);\r\n this._initAnimators();\r\n this._initScrollbar()\r\n },\r\n _initOptions: function(options) {\r\n this._location = 0;\r\n this._topReached = false;\r\n this._bottomReached = false;\r\n this._axis = options.direction === HORIZONTAL ? \"x\" : \"y\";\r\n this._prop = options.direction === HORIZONTAL ? \"left\" : \"top\";\r\n this._dimension = options.direction === HORIZONTAL ? \"width\" : \"height\";\r\n this._scrollProp = options.direction === HORIZONTAL ? \"scrollLeft\" : \"scrollTop\";\r\n each(options, (optionName, optionValue) => {\r\n this[\"_\" + optionName] = optionValue\r\n })\r\n },\r\n _initAnimators: function() {\r\n this._inertiaAnimator = new InertiaAnimator(this);\r\n this._bounceAnimator = new BounceAnimator(this)\r\n },\r\n _initScrollbar: function() {\r\n this._scrollbar = new Scrollbar($(\"
\").appendTo(this._$container), {\r\n direction: this._direction,\r\n visible: this._scrollByThumb,\r\n visibilityMode: this._visibilityModeNormalize(this._scrollbarVisible),\r\n expandable: this._scrollByThumb\r\n });\r\n this._$scrollbar = this._scrollbar.$element()\r\n },\r\n _visibilityModeNormalize: function(mode) {\r\n return true === mode ? \"onScroll\" : false === mode ? \"never\" : mode\r\n },\r\n _scrollStep: function(delta) {\r\n var prevLocation = this._location;\r\n this._location += delta;\r\n this._suppressBounce();\r\n this._move();\r\n if (Math.abs(prevLocation - this._location) < 1) {\r\n return\r\n }\r\n eventsEngine.triggerHandler(this._$container, {\r\n type: \"scroll\"\r\n })\r\n },\r\n _suppressBounce: function() {\r\n if (this._bounceEnabled || this._inBounds(this._location)) {\r\n return\r\n }\r\n this._velocity = 0;\r\n this._location = this._boundLocation()\r\n },\r\n _boundLocation: function(location) {\r\n location = void 0 !== location ? location : this._location;\r\n return Math.max(Math.min(location, this._maxOffset), this._minOffset)\r\n },\r\n _move: function(location) {\r\n this._location = void 0 !== location ? location * this._getScaleRatio() : this._location;\r\n this._moveContent();\r\n this._moveScrollbar()\r\n },\r\n _moveContent: function() {\r\n var location = this._location;\r\n this._$container[this._scrollProp](-location / this._getScaleRatio());\r\n this._moveContentByTranslator(location)\r\n },\r\n _getScaleRatio: function() {\r\n if (hasWindow() && !this._scaleRatio) {\r\n var element = this._$element.get(0);\r\n var realDimension = this._getRealDimension(element, this._dimension);\r\n var baseDimension = this._getBaseDimension(element, this._dimension);\r\n this._scaleRatio = Math.round(realDimension / baseDimension * 100) / 100\r\n }\r\n return this._scaleRatio || 1\r\n },\r\n _getRealDimension: function(element, dimension) {\r\n return Math.round(getBoundingRect(element)[dimension])\r\n },\r\n _getBaseDimension: function(element, dimension) {\r\n var dimensionName = \"offset\" + titleize(dimension);\r\n return element[dimensionName]\r\n },\r\n _moveContentByTranslator: function(location) {\r\n var translateOffset;\r\n var minOffset = -this._maxScrollPropValue;\r\n if (location > 0) {\r\n translateOffset = location\r\n } else if (location <= minOffset) {\r\n translateOffset = location - minOffset\r\n } else {\r\n translateOffset = location % 1\r\n }\r\n if (this._translateOffset === translateOffset) {\r\n return\r\n }\r\n var targetLocation = {};\r\n targetLocation[this._prop] = translateOffset;\r\n this._translateOffset = translateOffset;\r\n if (0 === translateOffset) {\r\n resetPosition(this._$content);\r\n return\r\n }\r\n move(this._$content, targetLocation)\r\n },\r\n _moveScrollbar: function() {\r\n this._scrollbar.moveTo(this._location)\r\n },\r\n _scrollComplete: function() {\r\n if (this._inBounds()) {\r\n this._hideScrollbar();\r\n if (this._completeDeferred) {\r\n this._completeDeferred.resolve()\r\n }\r\n }\r\n this._scrollToBounds()\r\n },\r\n _scrollToBounds: function() {\r\n if (this._inBounds()) {\r\n return\r\n }\r\n this._bounceAction();\r\n this._setupBounce();\r\n this._bounceAnimator.start()\r\n },\r\n _setupBounce: function() {\r\n var boundLocation = this._bounceLocation = this._boundLocation();\r\n var bounceDistance = boundLocation - this._location;\r\n this._velocity = bounceDistance / BOUNCE_ACCELERATION_SUM\r\n },\r\n _inBounds: function(location) {\r\n location = void 0 !== location ? location : this._location;\r\n return this._boundLocation(location) === location\r\n },\r\n _crossBoundOnNextStep: function() {\r\n var location = this._location;\r\n var nextLocation = location + this._velocity;\r\n return location < this._minOffset && nextLocation >= this._minOffset || location > this._maxOffset && nextLocation <= this._maxOffset\r\n },\r\n _initHandler: function(e) {\r\n this._stopScrolling();\r\n this._prepareThumbScrolling(e)\r\n },\r\n _stopScrolling: deferRenderer((function() {\r\n this._hideScrollbar();\r\n this._inertiaAnimator.stop();\r\n this._bounceAnimator.stop()\r\n })),\r\n _prepareThumbScrolling: function(e) {\r\n if (isDxMouseWheelEvent(e.originalEvent)) {\r\n return\r\n }\r\n var $target = $(e.originalEvent.target);\r\n var scrollbarClicked = this._isScrollbar($target);\r\n if (scrollbarClicked) {\r\n this._moveToMouseLocation(e)\r\n }\r\n this._thumbScrolling = scrollbarClicked || this._isThumb($target);\r\n this._crossThumbScrolling = !this._thumbScrolling && this._isAnyThumbScrolling($target);\r\n if (this._thumbScrolling) {\r\n this._scrollbar.feedbackOn()\r\n }\r\n },\r\n _isThumbScrollingHandler: function($target) {\r\n return this._isThumb($target)\r\n },\r\n _moveToMouseLocation: function(e) {\r\n var mouseLocation = e[\"page\" + this._axis.toUpperCase()] - this._$element.offset()[this._prop];\r\n var location = this._location + mouseLocation / this._containerToContentRatio() - getHeight(this._$container) / 2;\r\n this._scrollStep(-Math.round(location))\r\n },\r\n _startHandler: function() {\r\n this._showScrollbar()\r\n },\r\n _moveHandler: function(delta) {\r\n if (this._crossThumbScrolling) {\r\n return\r\n }\r\n if (this._thumbScrolling) {\r\n delta[this._axis] = -Math.round(delta[this._axis] / this._containerToContentRatio())\r\n }\r\n this._scrollBy(delta)\r\n },\r\n _scrollBy: function(delta) {\r\n delta = delta[this._axis];\r\n if (!this._inBounds()) {\r\n delta *= OUT_BOUNDS_ACCELERATION\r\n }\r\n this._scrollStep(delta)\r\n },\r\n _scrollByHandler: function(delta) {\r\n this._scrollBy(delta);\r\n this._scrollComplete()\r\n },\r\n _containerToContentRatio: function() {\r\n return this._scrollbar.containerToContentRatio()\r\n },\r\n _endHandler: function(velocity) {\r\n this._completeDeferred = new Deferred;\r\n this._velocity = velocity[this._axis];\r\n this._inertiaHandler();\r\n this._resetThumbScrolling();\r\n return this._completeDeferred.promise()\r\n },\r\n _inertiaHandler: function() {\r\n this._suppressInertia();\r\n this._inertiaAnimator.start()\r\n },\r\n _suppressInertia: function() {\r\n if (!this._inertiaEnabled || this._thumbScrolling) {\r\n this._velocity = 0\r\n }\r\n },\r\n _resetThumbScrolling: function() {\r\n this._thumbScrolling = false;\r\n this._crossThumbScrolling = false\r\n },\r\n _stopHandler: function() {\r\n if (this._thumbScrolling) {\r\n this._scrollComplete()\r\n }\r\n this._resetThumbScrolling();\r\n this._scrollToBounds()\r\n },\r\n _disposeHandler: function() {\r\n this._stopScrolling();\r\n this._$scrollbar.remove()\r\n },\r\n _updateHandler: function() {\r\n this._update();\r\n this._moveToBounds()\r\n },\r\n _update: function() {\r\n this._stopScrolling();\r\n return deferUpdate(() => {\r\n this._resetScaleRatio();\r\n this._updateLocation();\r\n this._updateBounds();\r\n this._updateScrollbar();\r\n deferRender(() => {\r\n this._moveScrollbar();\r\n this._scrollbar.update()\r\n })\r\n })\r\n },\r\n _resetScaleRatio: function() {\r\n this._scaleRatio = null\r\n },\r\n _updateLocation: function() {\r\n this._location = (locate(this._$content)[this._prop] - this._$container[this._scrollProp]()) * this._getScaleRatio()\r\n },\r\n _updateBounds: function() {\r\n this._maxOffset = this._getMaxOffset();\r\n this._minOffset = this._getMinOffset()\r\n },\r\n _getMaxOffset: function() {\r\n return 0\r\n },\r\n _getMinOffset: function() {\r\n this._maxScrollPropValue = Math.max(this._contentSize() - this._containerSize(), 0);\r\n return -this._maxScrollPropValue\r\n },\r\n _updateScrollbar: deferUpdater((function() {\r\n var containerSize = this._containerSize();\r\n var contentSize = this._contentSize();\r\n var baseContainerSize = this._getBaseDimension(this._$container.get(0), this._dimension);\r\n var baseContentSize = this._getBaseDimension(this._$content.get(0), this._dimension);\r\n deferRender(() => {\r\n this._scrollbar.option({\r\n containerSize: containerSize,\r\n contentSize: contentSize,\r\n baseContainerSize: baseContainerSize,\r\n baseContentSize: baseContentSize,\r\n scaleRatio: this._getScaleRatio()\r\n })\r\n })\r\n })),\r\n _moveToBounds: deferRenderer(deferUpdater(deferRenderer((function() {\r\n var location = this._boundLocation();\r\n var locationChanged = location !== this._location;\r\n this._location = location;\r\n this._move();\r\n if (locationChanged) {\r\n this._scrollAction()\r\n }\r\n })))),\r\n _createActionsHandler: function(actions) {\r\n this._scrollAction = actions.scroll;\r\n this._bounceAction = actions.bounce\r\n },\r\n _showScrollbar: function() {\r\n this._scrollbar.option(\"visible\", true)\r\n },\r\n _hideScrollbar: function() {\r\n this._scrollbar.option(\"visible\", false)\r\n },\r\n _containerSize: function() {\r\n return this._getRealDimension(this._$container.get(0), this._dimension)\r\n },\r\n _contentSize: function() {\r\n var isOverflowHidden = \"hidden\" === this._$content.css(\"overflow\" + this._axis.toUpperCase());\r\n var contentSize = this._getRealDimension(this._$content.get(0), this._dimension);\r\n if (!isOverflowHidden) {\r\n var containerScrollSize = this._$content[0][\"scroll\" + titleize(this._dimension)] * this._getScaleRatio();\r\n contentSize = Math.max(containerScrollSize, contentSize)\r\n }\r\n return contentSize\r\n },\r\n _validateEvent: function(e) {\r\n var $target = $(e.originalEvent.target);\r\n return this._isThumb($target) || this._isScrollbar($target)\r\n },\r\n _isThumb: function($element) {\r\n return this._scrollByThumb && this._scrollbar.isThumb($element)\r\n },\r\n _isScrollbar: function($element) {\r\n return this._scrollByThumb && $element && $element.is(this._$scrollbar)\r\n },\r\n _reachedMin: function() {\r\n return Math.round(this._location - this._minOffset) <= 0\r\n },\r\n _reachedMax: function() {\r\n return Math.round(this._location - this._maxOffset) >= 0\r\n },\r\n _cursorEnterHandler: function() {\r\n this._resetScaleRatio();\r\n this._updateScrollbar();\r\n this._scrollbar.cursorEnter()\r\n },\r\n _cursorLeaveHandler: function() {\r\n this._scrollbar.cursorLeave()\r\n },\r\n dispose: noop\r\n});\r\nvar hoveredScrollable;\r\nvar activeScrollable;\r\nexport var SimulatedStrategy = Class.inherit({\r\n ctor: function(scrollable) {\r\n this._init(scrollable)\r\n },\r\n _init: function(scrollable) {\r\n this._component = scrollable;\r\n this._$element = scrollable.$element();\r\n this._$container = $(scrollable.container());\r\n this._$wrapper = scrollable._$wrapper;\r\n this._$content = scrollable.$content();\r\n this.option = scrollable.option.bind(scrollable);\r\n this._createActionByOption = scrollable._createActionByOption.bind(scrollable);\r\n this._isLocked = scrollable._isLocked.bind(scrollable);\r\n this._isDirection = scrollable._isDirection.bind(scrollable);\r\n this._allowedDirection = scrollable._allowedDirection.bind(scrollable);\r\n this._getMaxOffset = scrollable._getMaxOffset.bind(scrollable)\r\n },\r\n render: function() {\r\n this._$element.addClass(SCROLLABLE_SIMULATED_CLASS);\r\n this._createScrollers();\r\n if (this.option(\"useKeyboard\")) {\r\n this._$container.prop(\"tabIndex\", 0)\r\n }\r\n this._attachKeyboardHandler();\r\n this._attachCursorHandlers()\r\n },\r\n _createScrollers: function() {\r\n this._scrollers = {};\r\n if (this._isDirection(HORIZONTAL)) {\r\n this._createScroller(HORIZONTAL)\r\n }\r\n if (this._isDirection(VERTICAL)) {\r\n this._createScroller(VERTICAL)\r\n }\r\n this._$element.toggleClass(SCROLLABLE_SCROLLBARS_ALWAYSVISIBLE, \"always\" === this.option(\"showScrollbar\"))\r\n },\r\n _createScroller: function(direction) {\r\n this._scrollers[direction] = new Scroller(this._scrollerOptions(direction))\r\n },\r\n _scrollerOptions: function(direction) {\r\n return {\r\n direction: direction,\r\n $content: this._$content,\r\n $container: this._$container,\r\n $wrapper: this._$wrapper,\r\n $element: this._$element,\r\n scrollByThumb: this.option(\"scrollByThumb\"),\r\n scrollbarVisible: this.option(\"showScrollbar\"),\r\n bounceEnabled: this.option(\"bounceEnabled\"),\r\n inertiaEnabled: this.option(\"inertiaEnabled\"),\r\n isAnyThumbScrolling: this._isAnyThumbScrolling.bind(this)\r\n }\r\n },\r\n _applyScaleRatio: function(targetLocation) {\r\n for (var direction in this._scrollers) {\r\n var prop = this._getPropByDirection(direction);\r\n if (isDefined(targetLocation[prop])) {\r\n var scroller = this._scrollers[direction];\r\n targetLocation[prop] *= scroller._getScaleRatio()\r\n }\r\n }\r\n return targetLocation\r\n },\r\n _isAnyThumbScrolling: function($target) {\r\n var result = false;\r\n this._eventHandler(\"isThumbScrolling\", $target).done((function(isThumbScrollingVertical, isThumbScrollingHorizontal) {\r\n result = isThumbScrollingVertical || isThumbScrollingHorizontal\r\n }));\r\n return result\r\n },\r\n handleInit: function(e) {\r\n this._suppressDirections(e);\r\n this._eventForUserAction = e;\r\n this._eventHandler(\"init\", e)\r\n },\r\n _suppressDirections: function(e) {\r\n if (isDxMouseWheelEvent(e.originalEvent)) {\r\n this._prepareDirections(true);\r\n return\r\n }\r\n this._prepareDirections();\r\n this._eachScroller((function(scroller, direction) {\r\n var $target = $(e.originalEvent.target);\r\n var isValid = scroller._validateEvent(e) || this.option(\"scrollByContent\") && this._isContent($target);\r\n this._validDirections[direction] = isValid\r\n }))\r\n },\r\n _isContent: function($element) {\r\n return !!$element.closest(this._$element).length\r\n },\r\n _prepareDirections: function(value) {\r\n value = value || false;\r\n this._validDirections = {};\r\n this._validDirections[HORIZONTAL] = value;\r\n this._validDirections[VERTICAL] = value\r\n },\r\n _eachScroller: function(callback) {\r\n callback = callback.bind(this);\r\n each(this._scrollers, (function(direction, scroller) {\r\n callback(scroller, direction)\r\n }))\r\n },\r\n handleStart: function(e) {\r\n this._eventForUserAction = e;\r\n this._eventHandler(\"start\").done(this._startAction)\r\n },\r\n _saveActive: function() {\r\n activeScrollable = this\r\n },\r\n _resetActive: function() {\r\n if (activeScrollable === this) {\r\n activeScrollable = null\r\n }\r\n },\r\n handleMove: function(e) {\r\n if (this._isLocked()) {\r\n e.cancel = true;\r\n this._resetActive();\r\n return\r\n }\r\n this._saveActive();\r\n e.preventDefault && e.preventDefault();\r\n this._adjustDistance(e, e.delta);\r\n this._eventForUserAction = e;\r\n this._eventHandler(\"move\", e.delta)\r\n },\r\n _adjustDistance: function(e, distance) {\r\n distance.x *= this._validDirections[HORIZONTAL];\r\n distance.y *= this._validDirections[VERTICAL];\r\n var devicePixelRatio = this._tryGetDevicePixelRatio();\r\n if (devicePixelRatio && isDxMouseWheelEvent(e.originalEvent)) {\r\n distance.x = Math.round(distance.x / devicePixelRatio * 100) / 100;\r\n distance.y = Math.round(distance.y / devicePixelRatio * 100) / 100\r\n }\r\n },\r\n _tryGetDevicePixelRatio: function() {\r\n if (hasWindow()) {\r\n return getWindow().devicePixelRatio\r\n }\r\n },\r\n handleEnd: function(e) {\r\n this._resetActive();\r\n this._refreshCursorState(e.originalEvent && e.originalEvent.target);\r\n this._adjustDistance(e, e.velocity);\r\n this._eventForUserAction = e;\r\n return this._eventHandler(\"end\", e.velocity).done(this._endAction)\r\n },\r\n handleCancel: function(e) {\r\n this._resetActive();\r\n this._eventForUserAction = e;\r\n return this._eventHandler(\"end\", {\r\n x: 0,\r\n y: 0\r\n })\r\n },\r\n handleStop: function() {\r\n this._resetActive();\r\n this._eventHandler(\"stop\")\r\n },\r\n handleScroll: function() {\r\n this._updateRtlConfig();\r\n this._scrollAction()\r\n },\r\n _attachKeyboardHandler: function() {\r\n eventsEngine.off(this._$element, \".\".concat(SCROLLABLE_SIMULATED_KEYBOARD));\r\n if (!this.option(\"disabled\") && this.option(\"useKeyboard\")) {\r\n eventsEngine.on(this._$element, addEventNamespace(\"keydown\", SCROLLABLE_SIMULATED_KEYBOARD), this._keyDownHandler.bind(this))\r\n }\r\n },\r\n _keyDownHandler: function(e) {\r\n clearTimeout(this._updateHandlerTimeout);\r\n this._updateHandlerTimeout = setTimeout(() => {\r\n if (normalizeKeyName(e) === KEY_CODES.TAB) {\r\n this._eachScroller(scroller => {\r\n scroller._updateHandler()\r\n })\r\n }\r\n });\r\n if (!this._$container.is(domAdapter.getActiveElement())) {\r\n return\r\n }\r\n var handled = true;\r\n switch (normalizeKeyName(e)) {\r\n case KEY_CODES.DOWN:\r\n this._scrollByLine({\r\n y: 1\r\n });\r\n break;\r\n case KEY_CODES.UP:\r\n this._scrollByLine({\r\n y: -1\r\n });\r\n break;\r\n case KEY_CODES.RIGHT:\r\n this._scrollByLine({\r\n x: 1\r\n });\r\n break;\r\n case KEY_CODES.LEFT:\r\n this._scrollByLine({\r\n x: -1\r\n });\r\n break;\r\n case KEY_CODES.PAGE_DOWN:\r\n this._scrollByPage(1);\r\n break;\r\n case KEY_CODES.PAGE_UP:\r\n this._scrollByPage(-1);\r\n break;\r\n case KEY_CODES.HOME:\r\n this._scrollToHome();\r\n break;\r\n case KEY_CODES.END:\r\n this._scrollToEnd();\r\n break;\r\n default:\r\n handled = false\r\n }\r\n if (handled) {\r\n e.stopPropagation();\r\n e.preventDefault()\r\n }\r\n },\r\n _scrollByLine: function(lines) {\r\n var devicePixelRatio = this._tryGetDevicePixelRatio();\r\n var scrollOffset = SCROLL_LINE_HEIGHT;\r\n if (devicePixelRatio) {\r\n scrollOffset = Math.abs(scrollOffset / devicePixelRatio * 100) / 100\r\n }\r\n this.scrollBy({\r\n top: (lines.y || 0) * -scrollOffset,\r\n left: (lines.x || 0) * -scrollOffset\r\n })\r\n },\r\n _scrollByPage: function(page) {\r\n var prop = this._wheelProp();\r\n var dimension = this._dimensionByProp(prop);\r\n var distance = {};\r\n var getter = \"width\" === dimension ? getWidth : getHeight;\r\n distance[prop] = page * -getter(this._$container);\r\n this.scrollBy(distance)\r\n },\r\n _dimensionByProp: function(prop) {\r\n return \"left\" === prop ? \"width\" : \"height\"\r\n },\r\n _getPropByDirection: function(direction) {\r\n return direction === HORIZONTAL ? \"left\" : \"top\"\r\n },\r\n _scrollToHome: function() {\r\n var prop = this._wheelProp();\r\n var distance = {};\r\n distance[prop] = 0;\r\n this._component.scrollTo(distance)\r\n },\r\n _scrollToEnd: function() {\r\n var prop = this._wheelProp();\r\n var dimension = this._dimensionByProp(prop);\r\n var distance = {};\r\n var getter = \"width\" === dimension ? getWidth : getHeight;\r\n distance[prop] = getter(this._$content) - getter(this._$container);\r\n this._component.scrollTo(distance)\r\n },\r\n createActions: function() {\r\n this._startAction = this._createActionHandler(\"onStart\");\r\n this._endAction = this._createActionHandler(\"onEnd\");\r\n this._updateAction = this._createActionHandler(\"onUpdated\");\r\n this._createScrollerActions()\r\n },\r\n _createScrollerActions: function() {\r\n this._scrollAction = this._createActionHandler(\"onScroll\");\r\n this._bounceAction = this._createActionHandler(\"onBounce\");\r\n this._eventHandler(\"createActions\", {\r\n scroll: this._scrollAction,\r\n bounce: this._bounceAction\r\n })\r\n },\r\n _createActionHandler: function(optionName) {\r\n var actionHandler = this._createActionByOption(optionName);\r\n return () => {\r\n actionHandler(extend(this._createActionArgs(), arguments))\r\n }\r\n },\r\n _createActionArgs: function() {\r\n var {\r\n horizontal: scrollerX,\r\n vertical: scrollerY\r\n } = this._scrollers;\r\n var offset = this._getScrollOffset();\r\n this._scrollOffset = {\r\n top: scrollerY && offset.top,\r\n left: scrollerX && offset.left\r\n };\r\n return {\r\n event: this._eventForUserAction,\r\n scrollOffset: this._scrollOffset,\r\n reachedLeft: scrollerX && scrollerX._reachedMax(),\r\n reachedRight: scrollerX && scrollerX._reachedMin(),\r\n reachedTop: scrollerY && scrollerY._reachedMax(),\r\n reachedBottom: scrollerY && scrollerY._reachedMin()\r\n }\r\n },\r\n _getScrollOffset() {\r\n return {\r\n top: -this.location().top,\r\n left: -this.location().left\r\n }\r\n },\r\n _eventHandler: function(eventName) {\r\n var args = [].slice.call(arguments).slice(1);\r\n var deferreds = map(this._scrollers, scroller => scroller[\"_\" + eventName + \"Handler\"].apply(scroller, args));\r\n return when.apply($, deferreds).promise()\r\n },\r\n location: function() {\r\n var location = locate(this._$content);\r\n location.top -= this._$container.scrollTop();\r\n location.left -= this._$container.scrollLeft();\r\n return location\r\n },\r\n disabledChanged: function() {\r\n this._attachCursorHandlers()\r\n },\r\n _attachCursorHandlers: function() {\r\n eventsEngine.off(this._$element, \".\".concat(SCROLLABLE_SIMULATED_CURSOR));\r\n if (!this.option(\"disabled\") && this._isHoverMode()) {\r\n eventsEngine.on(this._$element, addEventNamespace(\"mouseenter\", SCROLLABLE_SIMULATED_CURSOR), this._cursorEnterHandler.bind(this));\r\n eventsEngine.on(this._$element, addEventNamespace(\"mouseleave\", SCROLLABLE_SIMULATED_CURSOR), this._cursorLeaveHandler.bind(this))\r\n }\r\n },\r\n _isHoverMode: function() {\r\n return \"onHover\" === this.option(\"showScrollbar\")\r\n },\r\n _cursorEnterHandler: function(e) {\r\n e = e || {};\r\n e.originalEvent = e.originalEvent || {};\r\n if (activeScrollable || e.originalEvent._hoverHandled) {\r\n return\r\n }\r\n if (hoveredScrollable) {\r\n hoveredScrollable._cursorLeaveHandler()\r\n }\r\n hoveredScrollable = this;\r\n this._eventHandler(\"cursorEnter\");\r\n e.originalEvent._hoverHandled = true\r\n },\r\n _cursorLeaveHandler: function(e) {\r\n if (hoveredScrollable !== this || activeScrollable === hoveredScrollable) {\r\n return\r\n }\r\n this._eventHandler(\"cursorLeave\");\r\n hoveredScrollable = null;\r\n this._refreshCursorState(e && e.relatedTarget)\r\n },\r\n _refreshCursorState: function(target) {\r\n if (!this._isHoverMode() && (!target || activeScrollable)) {\r\n return\r\n }\r\n var $target = $(target);\r\n var $scrollable = $target.closest(\".\".concat(SCROLLABLE_SIMULATED_CLASS, \":not(.dx-state-disabled)\"));\r\n var targetScrollable = $scrollable.length && $scrollable.data(SCROLLABLE_STRATEGY);\r\n if (hoveredScrollable && hoveredScrollable !== targetScrollable) {\r\n hoveredScrollable._cursorLeaveHandler()\r\n }\r\n if (targetScrollable) {\r\n targetScrollable._cursorEnterHandler()\r\n }\r\n },\r\n update: function() {\r\n var result = this._eventHandler(\"update\").done(this._updateAction);\r\n return when(result, deferUpdate(() => {\r\n var allowedDirections = this._allowedDirections();\r\n deferRender(() => {\r\n var touchDirection = allowedDirections.vertical ? \"pan-x\" : \"\";\r\n touchDirection = allowedDirections.horizontal ? \"pan-y\" : touchDirection;\r\n touchDirection = allowedDirections.vertical && allowedDirections.horizontal ? \"none\" : touchDirection;\r\n this._$container.css(\"touchAction\", touchDirection)\r\n });\r\n return when().promise()\r\n }))\r\n },\r\n _allowedDirections: function() {\r\n var bounceEnabled = this.option(\"bounceEnabled\");\r\n var verticalScroller = this._scrollers[VERTICAL];\r\n var horizontalScroller = this._scrollers[HORIZONTAL];\r\n return {\r\n vertical: verticalScroller && (verticalScroller._minOffset < 0 || bounceEnabled),\r\n horizontal: horizontalScroller && (horizontalScroller._minOffset < 0 || bounceEnabled)\r\n }\r\n },\r\n _updateBounds: function() {\r\n this._scrollers[HORIZONTAL] && this._scrollers[HORIZONTAL]._updateBounds()\r\n },\r\n _isHorizontalAndRtlEnabled: function() {\r\n return this.option(\"rtlEnabled\") && this.option(\"direction\") !== VERTICAL\r\n },\r\n updateRtlPosition: function(needInitializeRtlConfig) {\r\n if (needInitializeRtlConfig) {\r\n this._rtlConfig = {\r\n scrollRight: 0,\r\n clientWidth: this._$container.get(0).clientWidth,\r\n windowPixelRatio: this._getWindowDevicePixelRatio()\r\n }\r\n }\r\n this._updateBounds();\r\n if (this._isHorizontalAndRtlEnabled()) {\r\n deferUpdate(() => {\r\n var scrollLeft = this._getMaxOffset().left - this._rtlConfig.scrollRight;\r\n if (scrollLeft <= 0) {\r\n scrollLeft = 0;\r\n this._rtlConfig.scrollRight = this._getMaxOffset().left\r\n }\r\n deferRender(() => {\r\n if (this._getScrollOffset().left !== scrollLeft) {\r\n this._rtlConfig.skipUpdating = true;\r\n this._component.scrollTo({\r\n left: scrollLeft\r\n });\r\n this._rtlConfig.skipUpdating = false\r\n }\r\n })\r\n })\r\n }\r\n },\r\n _updateRtlConfig: function() {\r\n if (this._isHorizontalAndRtlEnabled() && !this._rtlConfig.skipUpdating) {\r\n var {\r\n clientWidth: clientWidth,\r\n scrollLeft: scrollLeft\r\n } = this._$container.get(0);\r\n var windowPixelRatio = this._getWindowDevicePixelRatio();\r\n if (this._rtlConfig.windowPixelRatio === windowPixelRatio && this._rtlConfig.clientWidth === clientWidth) {\r\n this._rtlConfig.scrollRight = this._getMaxOffset().left - scrollLeft\r\n }\r\n this._rtlConfig.clientWidth = clientWidth;\r\n this._rtlConfig.windowPixelRatio = windowPixelRatio\r\n }\r\n },\r\n _getWindowDevicePixelRatio: function() {\r\n return hasWindow() ? getWindow().devicePixelRatio : 1\r\n },\r\n scrollBy: function(distance) {\r\n var verticalScroller = this._scrollers[VERTICAL];\r\n var horizontalScroller = this._scrollers[HORIZONTAL];\r\n if (verticalScroller) {\r\n distance.top = verticalScroller._boundLocation(distance.top + verticalScroller._location) - verticalScroller._location\r\n }\r\n if (horizontalScroller) {\r\n distance.left = horizontalScroller._boundLocation(distance.left + horizontalScroller._location) - horizontalScroller._location\r\n }\r\n this._prepareDirections(true);\r\n this._startAction();\r\n this._eventHandler(\"scrollBy\", {\r\n x: distance.left,\r\n y: distance.top\r\n });\r\n this._endAction();\r\n this._updateRtlConfig()\r\n },\r\n validate: function(e) {\r\n if (isDxMouseWheelEvent(e) && isCommandKeyPressed(e)) {\r\n return false\r\n }\r\n if (this.option(\"disabled\")) {\r\n return false\r\n }\r\n if (this.option(\"bounceEnabled\")) {\r\n return true\r\n }\r\n return isDxMouseWheelEvent(e) ? this._validateWheel(e) : this._validateMove(e)\r\n },\r\n _validateWheel: function(e) {\r\n var scroller = this._scrollers[this._wheelDirection(e)];\r\n var reachedMin = scroller._reachedMin();\r\n var reachedMax = scroller._reachedMax();\r\n var contentGreaterThanContainer = !reachedMin || !reachedMax;\r\n var locatedNotAtBound = !reachedMin && !reachedMax;\r\n var scrollFromMin = reachedMin && e.delta > 0;\r\n var scrollFromMax = reachedMax && e.delta < 0;\r\n var validated = contentGreaterThanContainer && (locatedNotAtBound || scrollFromMin || scrollFromMax);\r\n validated = validated || void 0 !== this._validateWheelTimer;\r\n if (validated) {\r\n clearTimeout(this._validateWheelTimer);\r\n this._validateWheelTimer = setTimeout(() => {\r\n this._validateWheelTimer = void 0\r\n }, VALIDATE_WHEEL_TIMEOUT)\r\n }\r\n return validated\r\n },\r\n _validateMove: function(e) {\r\n if (!this.option(\"scrollByContent\") && !$(e.target).closest(\".\".concat(SCROLLABLE_SCROLLBAR_CLASS)).length) {\r\n return false\r\n }\r\n return this._allowedDirection()\r\n },\r\n getDirection: function(e) {\r\n return isDxMouseWheelEvent(e) ? this._wheelDirection(e) : this._allowedDirection()\r\n },\r\n _wheelProp: function() {\r\n return this._wheelDirection() === HORIZONTAL ? \"left\" : \"top\"\r\n },\r\n _wheelDirection: function(e) {\r\n switch (this.option(\"direction\")) {\r\n case HORIZONTAL:\r\n return HORIZONTAL;\r\n case VERTICAL:\r\n return VERTICAL;\r\n default:\r\n return e && e.shiftKey ? HORIZONTAL : VERTICAL\r\n }\r\n },\r\n dispose: function() {\r\n this._resetActive();\r\n if (hoveredScrollable === this) {\r\n hoveredScrollable = null\r\n }\r\n this._eventHandler(\"dispose\");\r\n this._detachEventHandlers();\r\n this._$element.removeClass(SCROLLABLE_SIMULATED_CLASS);\r\n this._eventForUserAction = null;\r\n clearTimeout(this._validateWheelTimer);\r\n clearTimeout(this._updateHandlerTimeout)\r\n },\r\n _detachEventHandlers: function() {\r\n eventsEngine.off(this._$element, \".\".concat(SCROLLABLE_SIMULATED_CURSOR));\r\n eventsEngine.off(this._$container, \".\".concat(SCROLLABLE_SIMULATED_KEYBOARD))\r\n }\r\n});\r\n","/**\r\n * DevExtreme (esm/ui/scroll_view/ui.scrollbar.js)\r\n * Version: 21.2.15\r\n * Build date: Fri Dec 08 2023\r\n *\r\n * Copyright (c) 2012 - 2023 Developer Express Inc. ALL RIGHTS RESERVED\r\n * Read about DevExtreme licensing here: https://js.devexpress.com/Licensing/\r\n */\r\nimport $ from \"../../core/renderer\";\r\nimport domAdapter from \"../../core/dom_adapter\";\r\nimport eventsEngine from \"../../events/core/events_engine\";\r\nimport readyCallback from \"../../core/utils/ready_callbacks\";\r\nimport {\r\n move\r\n} from \"../../animation/translator\";\r\nimport Widget from \"../widget/ui.widget\";\r\nimport {\r\n addNamespace\r\n} from \"../../events/utils/index\";\r\nimport {\r\n deferRenderer\r\n} from \"../../core/utils/common\";\r\nimport {\r\n isPlainObject\r\n} from \"../../core/utils/type\";\r\nimport {\r\n extend\r\n} from \"../../core/utils/extend\";\r\nimport pointerEvents from \"../../events/pointer\";\r\nvar SCROLLBAR = \"dxScrollbar\";\r\nvar SCROLLABLE_SCROLLBAR_CLASS = \"dx-scrollable-scrollbar\";\r\nvar SCROLLABLE_SCROLLBAR_ACTIVE_CLASS = \"\".concat(SCROLLABLE_SCROLLBAR_CLASS, \"-active\");\r\nvar SCROLLABLE_SCROLL_CLASS = \"dx-scrollable-scroll\";\r\nvar SCROLLABLE_SCROLL_CONTENT_CLASS = \"dx-scrollable-scroll-content\";\r\nvar HOVER_ENABLED_STATE = \"dx-scrollbar-hoverable\";\r\nvar HORIZONTAL = \"horizontal\";\r\nvar THUMB_MIN_SIZE = 15;\r\nvar SCROLLBAR_VISIBLE = {\r\n onScroll: \"onScroll\",\r\n onHover: \"onHover\",\r\n always: \"always\",\r\n never: \"never\"\r\n};\r\nvar activeScrollbar = null;\r\nvar Scrollbar = Widget.inherit({\r\n _getDefaultOptions: function() {\r\n return extend(this.callBase(), {\r\n direction: null,\r\n visible: false,\r\n activeStateEnabled: false,\r\n visibilityMode: SCROLLBAR_VISIBLE.onScroll,\r\n containerSize: 0,\r\n contentSize: 0,\r\n expandable: true,\r\n scaleRatio: 1\r\n })\r\n },\r\n _init: function() {\r\n this.callBase();\r\n this._isHovered = false\r\n },\r\n _initMarkup: function() {\r\n this._renderThumb();\r\n this.callBase()\r\n },\r\n _render: function() {\r\n this.callBase();\r\n this._renderDirection();\r\n this._update();\r\n this._attachPointerDownHandler();\r\n this.option(\"hoverStateEnabled\", this._isHoverMode());\r\n this.$element().toggleClass(HOVER_ENABLED_STATE, this.option(\"hoverStateEnabled\"))\r\n },\r\n _renderThumb: function() {\r\n this._$thumb = $(\"
\").addClass(SCROLLABLE_SCROLL_CLASS);\r\n $(\"
\").addClass(SCROLLABLE_SCROLL_CONTENT_CLASS).appendTo(this._$thumb);\r\n this.$element().addClass(SCROLLABLE_SCROLLBAR_CLASS).append(this._$thumb)\r\n },\r\n isThumb: function($element) {\r\n return !!this.$element().find($element).length\r\n },\r\n _isHoverMode: function() {\r\n var visibilityMode = this.option(\"visibilityMode\");\r\n return (visibilityMode === SCROLLBAR_VISIBLE.onHover || visibilityMode === SCROLLBAR_VISIBLE.always) && this.option(\"expandable\")\r\n },\r\n _renderDirection: function() {\r\n var direction = this.option(\"direction\");\r\n this.$element().addClass(\"dx-scrollbar-\" + direction);\r\n this._dimension = direction === HORIZONTAL ? \"width\" : \"height\";\r\n this._prop = direction === HORIZONTAL ? \"left\" : \"top\"\r\n },\r\n _attachPointerDownHandler: function() {\r\n eventsEngine.on(this._$thumb, addNamespace(pointerEvents.down, SCROLLBAR), this.feedbackOn.bind(this))\r\n },\r\n feedbackOn: function() {\r\n this.$element().addClass(SCROLLABLE_SCROLLBAR_ACTIVE_CLASS);\r\n activeScrollbar = this\r\n },\r\n feedbackOff: function() {\r\n this.$element().removeClass(SCROLLABLE_SCROLLBAR_ACTIVE_CLASS);\r\n activeScrollbar = null\r\n },\r\n cursorEnter: function() {\r\n this._isHovered = true;\r\n if (this._needScrollbar()) {\r\n this.option(\"visible\", true)\r\n }\r\n },\r\n cursorLeave: function() {\r\n this._isHovered = false;\r\n this.option(\"visible\", false)\r\n },\r\n _renderDimensions: function() {\r\n this._$thumb.css({\r\n width: this.option(\"width\"),\r\n height: this.option(\"height\")\r\n })\r\n },\r\n _toggleVisibility: function(visible) {\r\n if (this.option(\"visibilityMode\") === SCROLLBAR_VISIBLE.onScroll) {\r\n this._$thumb.css(\"opacity\")\r\n }\r\n visible = this._adjustVisibility(visible);\r\n this.option().visible = visible;\r\n this._$thumb.toggleClass(\"dx-state-invisible\", !visible)\r\n },\r\n _adjustVisibility: function(visible) {\r\n if (this._baseContainerToContentRatio && !this._needScrollbar()) {\r\n return false\r\n }\r\n switch (this.option(\"visibilityMode\")) {\r\n case SCROLLBAR_VISIBLE.onScroll:\r\n break;\r\n case SCROLLBAR_VISIBLE.onHover:\r\n visible = visible || !!this._isHovered;\r\n break;\r\n case SCROLLBAR_VISIBLE.never:\r\n visible = false;\r\n break;\r\n case SCROLLBAR_VISIBLE.always:\r\n visible = true\r\n }\r\n return visible\r\n },\r\n moveTo: function(location) {\r\n if (this._isHidden()) {\r\n return\r\n }\r\n if (isPlainObject(location)) {\r\n location = location[this._prop] || 0\r\n }\r\n var scrollBarLocation = {};\r\n scrollBarLocation[this._prop] = this._calculateScrollBarPosition(location);\r\n move(this._$thumb, scrollBarLocation)\r\n },\r\n _calculateScrollBarPosition: function(location) {\r\n return -location * this._thumbRatio\r\n },\r\n _update: function() {\r\n var containerSize = Math.round(this.option(\"containerSize\"));\r\n var contentSize = Math.round(this.option(\"contentSize\"));\r\n var baseContainerSize = Math.round(this.option(\"baseContainerSize\"));\r\n var baseContentSize = Math.round(this.option(\"baseContentSize\"));\r\n if (isNaN(baseContainerSize)) {\r\n baseContainerSize = containerSize;\r\n baseContentSize = contentSize\r\n }\r\n this._baseContainerToContentRatio = baseContentSize ? baseContainerSize / baseContentSize : baseContainerSize;\r\n this._realContainerToContentRatio = contentSize ? containerSize / contentSize : containerSize;\r\n var thumbSize = Math.round(Math.max(Math.round(containerSize * this._realContainerToContentRatio), THUMB_MIN_SIZE));\r\n this._thumbRatio = (containerSize - thumbSize) / (this.option(\"scaleRatio\") * (contentSize - containerSize));\r\n this.option(this._dimension, thumbSize / this.option(\"scaleRatio\"));\r\n this.$element().css(\"display\", this._needScrollbar() ? \"\" : \"none\")\r\n },\r\n _isHidden: function() {\r\n return this.option(\"visibilityMode\") === SCROLLBAR_VISIBLE.never\r\n },\r\n _needScrollbar: function() {\r\n return !this._isHidden() && this._baseContainerToContentRatio < 1\r\n },\r\n containerToContentRatio: function() {\r\n return this._realContainerToContentRatio\r\n },\r\n _normalizeSize: function(size) {\r\n return isPlainObject(size) ? size[this._dimension] || 0 : size\r\n },\r\n _clean: function() {\r\n this.callBase();\r\n if (this === activeScrollbar) {\r\n activeScrollbar = null\r\n }\r\n eventsEngine.off(this._$thumb, \".\" + SCROLLBAR)\r\n },\r\n _optionChanged: function(args) {\r\n if (this._isHidden()) {\r\n return\r\n }\r\n switch (args.name) {\r\n case \"containerSize\":\r\n case \"contentSize\":\r\n this.option()[args.name] = this._normalizeSize(args.value);\r\n this._update();\r\n break;\r\n case \"baseContentSize\":\r\n case \"baseContainerSize\":\r\n this._update();\r\n break;\r\n case \"visibilityMode\":\r\n case \"direction\":\r\n this._invalidate();\r\n break;\r\n case \"scaleRatio\":\r\n this._update();\r\n break;\r\n default:\r\n this.callBase.apply(this, arguments)\r\n }\r\n },\r\n update: deferRenderer((function() {\r\n this._adjustVisibility() && this.option(\"visible\", true)\r\n }))\r\n});\r\nreadyCallback.add((function() {\r\n eventsEngine.subscribeGlobal(domAdapter.getDocument(), addNamespace(pointerEvents.up, SCROLLBAR), (function() {\r\n if (activeScrollbar) {\r\n activeScrollbar.feedbackOff()\r\n }\r\n }))\r\n}));\r\nexport default Scrollbar;\r\n"],"names":[],"sourceRoot":""}