happstack-yui-7371.5.0: bundle/scrollview-base/scrollview-base-coverage.js
/*
YUI 3.7.1 (build 5627)
Copyright 2012 Yahoo! Inc. All rights reserved.
Licensed under the BSD License.
http://yuilibrary.com/license/
*/
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_yuitest_coverage["build/scrollview-base/scrollview-base.js"].code=["YUI.add('scrollview-base', function (Y, NAME) {","","/**"," * The scrollview-base module provides a basic ScrollView Widget, without scrollbar indicators"," *"," * @module scrollview"," * @submodule scrollview-base"," */","var getClassName = Y.ClassNameManager.getClassName,"," DOCUMENT = Y.config.doc,"," WINDOW = Y.config.win,"," IE = Y.UA.ie,"," NATIVE_TRANSITIONS = Y.Transition.useNative,"," SCROLLVIEW = 'scrollview',"," CLASS_NAMES = {"," vertical: getClassName(SCROLLVIEW, 'vert'),"," horizontal: getClassName(SCROLLVIEW, 'horiz')"," },"," EV_SCROLL_END = 'scrollEnd',"," FLICK = 'flick',"," DRAG = 'drag',"," MOUSEWHEEL = 'mousewheel',"," UI = 'ui',"," TOP = 'top',"," RIGHT = 'right',"," BOTTOM = 'bottom',"," LEFT = 'left',"," PX = 'px',"," AXIS = 'axis',"," SCROLL_Y = 'scrollY',"," SCROLL_X = 'scrollX',"," BOUNCE = 'bounce',"," DISABLED = 'disabled',"," DECELERATION = 'deceleration',"," DIM_X = 'x',"," DIM_Y = 'y',"," BOUNDING_BOX = 'boundingBox',"," CONTENT_BOX = 'contentBox',"," GESTURE_MOVE = 'gesturemove',"," START = 'start',"," END = 'end',"," EMPTY = '',"," ZERO = '0s',"," SNAP_DURATION = 'snapDuration',"," SNAP_EASING = 'snapEasing', "," EASING = 'easing', "," FRAME_DURATION = 'frameDuration', "," BOUNCE_RANGE = 'bounceRange',"," "," _constrain = function (val, min, max) {"," return Math.min(Math.max(val, min), max);"," };","","/**"," * ScrollView provides a scrollable widget, supporting flick gestures,"," * across both touch and mouse based devices."," *"," * @class ScrollView"," * @param config {Object} Object literal with initial attribute values"," * @extends Widget"," * @constructor"," */","function ScrollView() {"," ScrollView.superclass.constructor.apply(this, arguments);","}","","Y.ScrollView = Y.extend(ScrollView, Y.Widget, {",""," // *** Y.ScrollView prototype",""," /**"," * Flag driving whether or not we should try and force H/W acceleration when transforming. Currently enabled by default for Webkit."," * Used by the _transform method."," *"," * @property _forceHWTransforms"," * @type boolean"," * @protected"," */"," _forceHWTransforms: Y.UA.webkit ? true : false,",""," /**"," * <p>Used to control whether or not ScrollView's internal"," * gesturemovestart, gesturemove and gesturemoveend"," * event listeners should preventDefault. The value is an"," * object, with \"start\", \"move\" and \"end\" properties used to"," * specify which events should preventDefault and which shouldn't:</p>"," *"," * <pre>"," * {"," * start: false,"," * move: true,"," * end: false"," * }"," * </pre>"," *"," * <p>The default values are set up in order to prevent panning,"," * on touch devices, while allowing click listeners on elements inside"," * the ScrollView to be notified as expected.</p>"," *"," * @property _prevent"," * @type Object"," * @protected"," */"," _prevent: {"," start: false,"," move: true,"," end: false"," },",""," /**"," * Contains the distance (postive or negative) in pixels by which "," * the scrollview was last scrolled. This is useful when setting up "," * click listeners on the scrollview content, which on mouse based "," * devices are always fired, even after a drag/flick. "," * "," * <p>Touch based devices don't currently fire a click event, "," * if the finger has been moved (beyond a threshold) so this "," * check isn't required, if working in a purely touch based environment</p>"," * "," * @property lastScrolledAmt"," * @type Number"," * @public"," * @default 0"," */"," lastScrolledAmt: 0,",""," /**"," * Designated initializer"," *"," * @method initializer"," * @param {config} Configuration object for the plugin"," */"," initializer: function (config) {"," var sv = this;",""," // Cache these values, since they aren't going to change."," sv._bb = sv.get(BOUNDING_BOX);"," sv._cb = sv.get(CONTENT_BOX);",""," // Cache some attributes"," sv._cAxis = sv.get(AXIS);"," sv._cBounce = sv.get(BOUNCE);"," sv._cBounceRange = sv.get(BOUNCE_RANGE);"," sv._cDeceleration = sv.get(DECELERATION);"," sv._cFrameDuration = sv.get(FRAME_DURATION);"," },",""," /**"," * bindUI implementation"," *"," * Hooks up events for the widget"," * @method bindUI"," */"," bindUI: function () {"," var sv = this;",""," // Bind interaction listers"," sv._bindFlick(sv.get(FLICK));"," sv._bindDrag(sv.get(DRAG));"," sv._bindMousewheel(true);"," "," // Bind change events"," sv._bindAttrs();",""," // IE SELECT HACK. See if we can do this non-natively and in the gesture for a future release."," if (IE) {"," sv._fixIESelect(sv._bb, sv._cb);"," }",""," // Set any deprecated static properties"," if (ScrollView.SNAP_DURATION) {"," sv.set(SNAP_DURATION, ScrollView.SNAP_DURATION);"," }",""," if (ScrollView.SNAP_EASING) {"," sv.set(SNAP_EASING, ScrollView.SNAP_EASING);"," }",""," if (ScrollView.EASING) {"," sv.set(EASING, ScrollView.EASING);"," }",""," if (ScrollView.FRAME_STEP) {"," sv.set(FRAME_DURATION, ScrollView.FRAME_STEP);"," }",""," if (ScrollView.BOUNCE_RANGE) {"," sv.set(BOUNCE_RANGE, ScrollView.BOUNCE_RANGE);"," }",""," // Recalculate dimension properties"," // TODO: This should be throttled."," // Y.one(WINDOW).after('resize', sv._afterDimChange, sv);"," },",""," /**"," * Bind event listeners"," *"," * @method _bindAttrs"," * @private"," */"," _bindAttrs: function () {"," var sv = this,"," scrollChangeHandler = sv._afterScrollChange,"," dimChangeHandler = sv._afterDimChange;",""," // Bind any change event listeners"," sv.after({"," 'scrollEnd': sv._afterScrollEnd,"," 'disabledChange': sv._afterDisabledChange,"," 'flickChange': sv._afterFlickChange,"," 'dragChange': sv._afterDragChange,"," 'axisChange': sv._afterAxisChange,"," 'scrollYChange': scrollChangeHandler,"," 'scrollXChange': scrollChangeHandler,"," 'heightChange': dimChangeHandler,"," 'widthChange': dimChangeHandler"," });"," },",""," /**"," * Bind (or unbind) gesture move listeners required for drag support"," *"," * @method _bindDrag"," * @param drag {boolean} If true, the method binds listener to enable drag (gesturemovestart). If false, the method unbinds gesturemove listeners for drag support."," * @private"," */"," _bindDrag: function (drag) {"," var sv = this,"," bb = sv._bb;",""," // Unbind any previous 'drag' listeners"," bb.detach(DRAG + '|*');",""," if (drag) {"," bb.on(DRAG + '|' + GESTURE_MOVE + START, Y.bind(sv._onGestureMoveStart, sv));"," }"," },",""," /**"," * Bind (or unbind) flick listeners."," *"," * @method _bindFlick"," * @param flick {Object|boolean} If truthy, the method binds listeners for flick support. If false, the method unbinds flick listeners."," * @private"," */"," _bindFlick: function (flick) {"," var sv = this,"," bb = sv._bb;",""," // Unbind any previous 'flick' listeners"," bb.detach(FLICK + '|*');",""," if (flick) {"," bb.on(FLICK + '|' + FLICK, Y.bind(sv._flick, sv), flick);",""," // Rebind Drag, becuase _onGestureMoveEnd always has to fire -after- _flick"," sv._bindDrag(sv.get(DRAG));"," }"," },",""," /**"," * Bind (or unbind) mousewheel listeners."," *"," * @method _bindMousewheel"," * @param mousewheel {Object|boolean} If truthy, the method binds listeners for mousewheel support. If false, the method unbinds mousewheel listeners."," * @private"," */"," _bindMousewheel: function (mousewheel) {"," var sv = this,"," bb = sv._bb;",""," // Unbind any previous 'mousewheel' listeners"," bb.detach(MOUSEWHEEL + '|*');",""," // Only enable for vertical scrollviews"," if (mousewheel) {"," // Bound to document, because that's where mousewheel events fire off of."," Y.one(DOCUMENT).on(MOUSEWHEEL, Y.bind(sv._mousewheel, sv));"," }"," },",""," /**"," * syncUI implementation."," *"," * Update the scroll position, based on the current value of scrollX/scrollY."," *"," * @method syncUI"," */"," syncUI: function () {"," var sv = this,"," scrollDims = sv._getScrollDims(),"," width = scrollDims.offsetWidth,"," height = scrollDims.offsetHeight,"," scrollWidth = scrollDims.scrollWidth,"," scrollHeight = scrollDims.scrollHeight;",""," // If the axis is undefined, auto-calculate it"," if (sv._cAxis === undefined) {"," // This should only ever be run once (for now)."," // In the future SV might post-load axis changes"," sv._cAxis = {"," x: (scrollWidth > width),"," y: (scrollHeight > height)"," };",""," sv._set(AXIS, sv._cAxis);"," }"," "," // get text direction on or inherited by scrollview node"," sv.rtl = (sv._cb.getComputedStyle('direction') === 'rtl');",""," // Cache the disabled value"," sv._cDisabled = sv.get(DISABLED);",""," // Run this to set initial values"," sv._uiDimensionsChange();",""," // If we're out-of-bounds, snap back."," if (sv._isOutOfBounds()) {"," sv._snapBack();"," }"," },",""," /**"," * Utility method to obtain widget dimensions"," * "," * @method _getScrollDims"," * @returns {Object} The offsetWidth, offsetHeight, scrollWidth and scrollHeight as an array: [offsetWidth, offsetHeight, scrollWidth, scrollHeight]"," * @private"," */"," _getScrollDims: function () {"," var sv = this,"," cb = sv._cb,"," bb = sv._bb,"," TRANS = ScrollView._TRANSITION,"," // Ideally using CSSMatrix - don't think we have it normalized yet though."," // origX = (new WebKitCSSMatrix(cb.getComputedStyle(\"transform\"))).e,"," // origY = (new WebKitCSSMatrix(cb.getComputedStyle(\"transform\"))).f,"," origX = sv.get(SCROLL_X),"," origY = sv.get(SCROLL_Y),"," origHWTransform,"," dims;",""," // TODO: Is this OK? Just in case it's called 'during' a transition."," if (NATIVE_TRANSITIONS) {"," cb.setStyle(TRANS.DURATION, ZERO);"," cb.setStyle(TRANS.PROPERTY, EMPTY);"," }",""," origHWTransform = sv._forceHWTransforms;"," sv._forceHWTransforms = false; // the z translation was causing issues with picking up accurate scrollWidths in Chrome/Mac.",""," sv._moveTo(cb, 0, 0);"," dims = {"," 'offsetWidth': bb.get('offsetWidth'),"," 'offsetHeight': bb.get('offsetHeight'),"," 'scrollWidth': bb.get('scrollWidth'),"," 'scrollHeight': bb.get('scrollHeight')"," };"," sv._moveTo(cb, -(origX), -(origY));",""," sv._forceHWTransforms = origHWTransform;",""," return dims;"," },",""," /**"," * This method gets invoked whenever the height or width attributes change,"," * allowing us to determine which scrolling axes need to be enabled."," *"," * @method _uiDimensionsChange"," * @protected"," */"," _uiDimensionsChange: function () {"," var sv = this,"," bb = sv._bb,"," scrollDims = sv._getScrollDims(),"," width = scrollDims.offsetWidth,"," height = scrollDims.offsetHeight,"," scrollWidth = scrollDims.scrollWidth,"," scrollHeight = scrollDims.scrollHeight,"," rtl = sv.rtl,"," svAxis = sv._cAxis;"," "," if (svAxis && svAxis.x) {"," bb.addClass(CLASS_NAMES.horizontal);"," }",""," if (svAxis && svAxis.y) {"," bb.addClass(CLASS_NAMES.vertical);"," }",""," /**"," * Internal state, defines the minimum amount that the scrollview can be scrolled along the X axis"," *"," * @property _minScrollX"," * @type number"," * @protected"," */"," sv._minScrollX = (rtl) ? Math.min(0, -(scrollWidth - width)) : 0;",""," /**"," * Internal state, defines the maximum amount that the scrollview can be scrolled along the X axis"," *"," * @property _maxScrollX"," * @type number"," * @protected"," */"," sv._maxScrollX = (rtl) ? 0 : Math.max(0, scrollWidth - width);",""," /**"," * Internal state, defines the minimum amount that the scrollview can be scrolled along the Y axis"," *"," * @property _minScrollY"," * @type number"," * @protected"," */"," sv._minScrollY = 0;",""," /**"," * Internal state, defines the maximum amount that the scrollview can be scrolled along the Y axis"," *"," * @property _maxScrollY"," * @type number"," * @protected"," */"," sv._maxScrollY = Math.max(0, scrollHeight - height);"," },",""," /**"," * Scroll the element to a given xy coordinate"," *"," * @method scrollTo"," * @param x {Number} The x-position to scroll to. (null for no movement)"," * @param y {Number} The y-position to scroll to. (null for no movement)"," * @param {Number} [duration] ms of the scroll animation. (default is 0)"," * @param {String} [easing] An easing equation if duration is set. (default is `easing` attribute)"," * @param {String} [node] The node to transform. Setting this can be useful in dual-axis paginated instances. (default is the instance's contentBox)"," */"," scrollTo: function (x, y, duration, easing, node) {"," // Check to see if widget is disabled"," if (this._cDisabled) {"," return;"," }",""," var sv = this,"," cb = sv._cb,"," TRANS = ScrollView._TRANSITION,"," callback = Y.bind(sv._onTransEnd, sv), // @Todo : cache this"," newX = 0,"," newY = 0,"," transition = {},"," transform;",""," // default the optional arguments"," duration = duration || 0;"," easing = easing || sv.get(EASING); // @TODO: Cache this"," node = node || cb;",""," if (x !== null) {"," sv.set(SCROLL_X, x, {src:UI});"," newX = -(x);"," }",""," if (y !== null) {"," sv.set(SCROLL_Y, y, {src:UI});"," newY = -(y);"," }",""," transform = sv._transform(newX, newY);",""," if (NATIVE_TRANSITIONS) {"," // ANDROID WORKAROUND - try and stop existing transition, before kicking off new one."," node.setStyle(TRANS.DURATION, ZERO).setStyle(TRANS.PROPERTY, EMPTY);"," }",""," // Move"," if (duration === 0) {"," if (NATIVE_TRANSITIONS) {"," node.setStyle('transform', transform);"," }"," else {"," // TODO: If both set, batch them in the same update"," // Update: Nope, setStyles() just loops through each property and applies it."," if (x !== null) {"," node.setStyle(LEFT, newX + PX);"," }"," if (y !== null) {"," node.setStyle(TOP, newY + PX);"," }"," }"," }",""," // Animate"," else {"," transition.easing = easing;"," transition.duration = duration / 1000;",""," if (NATIVE_TRANSITIONS) {"," transition.transform = transform;"," }"," else {"," transition.left = newX + PX;"," transition.top = newY + PX;"," }",""," node.transition(transition, callback);"," }"," },",""," /**"," * Utility method, to create the translate transform string with the"," * x, y translation amounts provided."," *"," * @method _transform"," * @param {Number} x Number of pixels to translate along the x axis"," * @param {Number} y Number of pixels to translate along the y axis"," * @private"," */"," _transform: function (x, y) {"," // TODO: Would we be better off using a Matrix for this?"," var prop = 'translate(' + x + 'px, ' + y + 'px)';",""," if (this._forceHWTransforms) {"," prop += ' translateZ(0)';"," }",""," return prop;"," },",""," /**"," * Utility method, to move the given element to the given xy position"," *"," * @method _moveTo"," * @param node {Node} The node to move"," * @param x {Number} The x-position to move to"," * @param y {Number} The y-position to move to"," * @private"," */"," _moveTo : function(node, x, y) {"," if (NATIVE_TRANSITIONS) {"," node.setStyle('transform', this._transform(x, y));"," } else {"," node.setStyle(LEFT, x + PX);"," node.setStyle(TOP, y + PX);"," }"," },","",""," /**"," * Content box transition callback"," *"," * @method _onTransEnd"," * @param {Event.Facade} e The event facade"," * @private"," */"," _onTransEnd: function (e) {"," var sv = this;",""," /**"," * Notification event fired at the end of a scroll transition"," *"," * @event scrollEnd"," * @param e {EventFacade} The default event facade."," */"," sv.fire(EV_SCROLL_END);"," },",""," /**"," * gesturemovestart event handler"," *"," * @method _onGestureMoveStart"," * @param e {Event.Facade} The gesturemovestart event facade"," * @private"," */"," _onGestureMoveStart: function (e) {",""," if (this._cDisabled) {"," return false;"," }",""," var sv = this,"," bb = sv._bb,"," currentX = sv.get(SCROLL_X),"," currentY = sv.get(SCROLL_Y),"," clientX = e.clientX,"," clientY = e.clientY;",""," if (sv._prevent.start) {"," e.preventDefault();"," }",""," // if a flick animation is in progress, cancel it"," if (sv._flickAnim) {"," // Cancel and delete sv._flickAnim"," sv._flickAnim.cancel();"," delete sv._flickAnim;"," sv._onTransEnd();"," }",""," // TODO: Review if neccesary (#2530129)"," e.stopPropagation();",""," // Reset lastScrolledAmt"," sv.lastScrolledAmt = 0;",""," // Stores data for this gesture cycle. Cleaned up later"," sv._gesture = {",""," // Will hold the axis value"," axis: null,",""," // The current attribute values"," startX: currentX,"," startY: currentY,",""," // The X/Y coordinates where the event began"," startClientX: clientX,"," startClientY: clientY,",""," // The X/Y coordinates where the event will end"," endClientX: null,"," endClientY: null,",""," // The current delta of the event"," deltaX: null,"," deltaY: null,",""," // Will be populated for flicks"," flick: null,",""," // Create some listeners for the rest of the gesture cycle"," onGestureMove: bb.on(DRAG + '|' + GESTURE_MOVE, Y.bind(sv._onGestureMove, sv)),"," "," // @TODO: Don't bind gestureMoveEnd if it's a Flick?"," onGestureMoveEnd: bb.on(DRAG + '|' + GESTURE_MOVE + END, Y.bind(sv._onGestureMoveEnd, sv))"," };"," },",""," /**"," * gesturemove event handler"," *"," * @method _onGestureMove"," * @param e {Event.Facade} The gesturemove event facade"," * @private"," */"," _onGestureMove: function (e) {"," var sv = this,"," gesture = sv._gesture,"," svAxis = sv._cAxis,"," svAxisX = svAxis.x,"," svAxisY = svAxis.y,"," startX = gesture.startX,"," startY = gesture.startY,"," startClientX = gesture.startClientX,"," startClientY = gesture.startClientY,"," clientX = e.clientX,"," clientY = e.clientY;",""," if (sv._prevent.move) {"," e.preventDefault();"," }",""," gesture.deltaX = startClientX - clientX;"," gesture.deltaY = startClientY - clientY;",""," // Determine if this is a vertical or horizontal movement"," // @TODO: This is crude, but it works. Investigate more intelligent ways to detect intent"," if (gesture.axis === null) {"," gesture.axis = (Math.abs(gesture.deltaX) > Math.abs(gesture.deltaY)) ? DIM_X : DIM_Y;"," }",""," // Move X or Y. @TODO: Move both if dualaxis. "," if (gesture.axis === DIM_X && svAxisX) {"," sv.set(SCROLL_X, startX + gesture.deltaX);"," }"," else if (gesture.axis === DIM_Y && svAxisY) {"," sv.set(SCROLL_Y, startY + gesture.deltaY);"," }"," },",""," /**"," * gesturemoveend event handler"," *"," * @method _onGestureMoveEnd"," * @param e {Event.Facade} The gesturemoveend event facade"," * @private"," */"," _onGestureMoveEnd: function (e) {"," var sv = this,"," gesture = sv._gesture,"," flick = gesture.flick,"," clientX = e.clientX,"," clientY = e.clientY;",""," if (sv._prevent.end) {"," e.preventDefault();"," }",""," // Store the end X/Y coordinates"," gesture.endClientX = clientX;"," gesture.endClientY = clientY;",""," // Cleanup the event handlers"," gesture.onGestureMove.detach();"," gesture.onGestureMoveEnd.detach();",""," // If this wasn't a flick, wrap up the gesture cycle"," if (!flick) {"," // @TODO: Be more intelligent about this. Look at the Flick attribute to see "," // if it is safe to assume _flick did or didn't fire. "," // Then, the order _flick and _onGestureMoveEnd fire doesn't matter?",""," // If there was movement (_onGestureMove fired)"," if (gesture.deltaX !== null && gesture.deltaY !== null) {",""," // If we're out-out-bounds, then snapback"," if (sv._isOutOfBounds()) {"," sv._snapBack();"," }",""," // Inbounds"," else {"," // Don't fire scrollEnd on the gesture axis is the same as paginator's"," // Not totally confident this is ideal to access a plugin's properties from a host, @TODO revisit"," if (sv.pages && !sv.pages.get(AXIS)[gesture.axis]) {"," sv._onTransEnd();"," }"," }"," }"," }"," },",""," /**"," * Execute a flick at the end of a scroll action"," *"," * @method _flick"," * @param e {Event.Facade} The Flick event facade"," * @private"," */"," _flick: function (e) {"," if (this._cDisabled) {"," return false;"," }",""," var sv = this,"," svAxis = sv._cAxis,"," flick = e.flick,"," flickAxis = flick.axis,"," flickVelocity = flick.velocity,"," axisAttr = flickAxis === DIM_X ? SCROLL_X : SCROLL_Y,"," startPosition = sv.get(axisAttr);",""," // Sometimes flick is enabled, but drag is disabled"," if (sv._gesture) {"," sv._gesture.flick = flick;"," }",""," // Prevent unneccesary firing of _flickFrame if we can't scroll on the flick axis"," if (svAxis[flickAxis]) {"," sv._flickFrame(flickVelocity, flickAxis, startPosition);"," }"," },",""," /**"," * Execute a single frame in the flick animation"," *"," * @method _flickFrame"," * @param velocity {Number} The velocity of this animated frame"," * @param flickAxis {String} The axis on which to animate"," * @param startPosition {Number} The starting X/Y point to flick from"," * @protected"," */"," _flickFrame: function (velocity, flickAxis, startPosition) {",""," var sv = this,"," axisAttr = flickAxis === DIM_X ? SCROLL_X : SCROLL_Y,",""," // Localize cached values"," bounce = sv._cBounce,"," bounceRange = sv._cBounceRange,"," deceleration = sv._cDeceleration,"," frameDuration = sv._cFrameDuration,",""," // Calculate"," newVelocity = velocity * deceleration,"," newPosition = startPosition - (frameDuration * newVelocity),",""," // Some convinience conditions"," min = flickAxis === DIM_X ? sv._minScrollX : sv._minScrollY,"," max = flickAxis === DIM_X ? sv._maxScrollX : sv._maxScrollY,"," belowMin = (newPosition < min),"," belowMax = (newPosition < max),"," aboveMin = (newPosition > min),"," aboveMax = (newPosition > max),"," belowMinRange = (newPosition < (min - bounceRange)),"," belowMaxRange = (newPosition < (max + bounceRange)),"," withinMinRange = (belowMin && (newPosition > (min - bounceRange))),"," withinMaxRange = (aboveMax && (newPosition < (max + bounceRange))),"," aboveMinRange = (newPosition > (min - bounceRange)),"," aboveMaxRange = (newPosition > (max + bounceRange)),"," tooSlow;",""," // If we're within the range but outside min/max, dampen the velocity"," if (withinMinRange || withinMaxRange) {"," newVelocity *= bounce;"," }",""," // Is the velocity too slow to bother?"," tooSlow = (Math.abs(newVelocity).toFixed(4) < 0.015);",""," // If the velocity is too slow or we're outside the range"," if (tooSlow || belowMinRange || aboveMaxRange) {"," // Cancel and delete sv._flickAnim"," if (sv._flickAnim) {"," sv._flickAnim.cancel();"," delete sv._flickAnim;"," }",""," // If we're inside the scroll area, just end"," if (aboveMin && belowMax) {"," sv._onTransEnd();"," }",""," // We're outside the scroll area, so we need to snap back"," else {"," sv._snapBack();"," }"," }",""," // Otherwise, animate to the next frame"," else {"," // @TODO: maybe use requestAnimationFrame instead"," sv._flickAnim = Y.later(frameDuration, sv, '_flickFrame', [newVelocity, flickAxis, newPosition]);"," sv.set(axisAttr, newPosition);"," }"," },",""," /**"," * Handle mousewheel events on the widget"," *"," * @method _mousewheel"," * @param e {Event.Facade} The mousewheel event facade"," * @private"," */"," _mousewheel: function (e) {"," var sv = this,"," scrollY = sv.get(SCROLL_Y),"," bb = sv._bb,"," scrollOffset = 10, // 10px"," isForward = (e.wheelDelta > 0),"," scrollToY = scrollY - ((isForward ? 1 : -1) * scrollOffset);",""," scrollToY = _constrain(scrollToY, sv._minScrollY, sv._maxScrollY);",""," // Because Mousewheel events fire off 'document', every ScrollView widget will react"," // to any mousewheel anywhere on the page. This check will ensure that the mouse is currently"," // over this specific ScrollView. Also, only allow mousewheel scrolling on Y-axis, "," // becuase otherwise the 'prevent' will block page scrolling."," if (bb.contains(e.target) && sv._cAxis[DIM_Y]) {",""," // Reset lastScrolledAmt"," sv.lastScrolledAmt = 0;",""," // Jump to the new offset"," sv.set(SCROLL_Y, scrollToY);",""," // if we have scrollbars plugin, update & set the flash timer on the scrollbar"," // @TODO: This probably shouldn't be in this module"," if (sv.scrollbars) {"," // @TODO: The scrollbars should handle this themselves"," sv.scrollbars._update();"," sv.scrollbars.flash();"," // or just this"," // sv.scrollbars._hostDimensionsChange();"," }",""," // Fire the 'scrollEnd' event"," sv._onTransEnd();",""," // prevent browser default behavior on mouse scroll"," e.preventDefault();"," }"," },",""," /**"," * Checks to see the current scrollX/scrollY position beyond the min/max boundary"," *"," * @method _isOutOfBounds"," * @param x {Number} [optional] The X position to check"," * @param y {Number} [optional] The Y position to check"," * @returns {boolen} Whether the current X/Y position is out of bounds (true) or not (false)"," * @private"," */"," _isOutOfBounds: function (x, y) {"," var sv = this,"," svAxis = sv._cAxis,"," svAxisX = svAxis.x,"," svAxisY = svAxis.y,"," currentX = x || sv.get(SCROLL_X),"," currentY = y || sv.get(SCROLL_Y),"," minX = sv._minScrollX,"," minY = sv._minScrollY,"," maxX = sv._maxScrollX,"," maxY = sv._maxScrollY;",""," return (svAxisX && (currentX < minX || currentX > maxX)) || (svAxisY && (currentY < minY || currentY > maxY));"," },",""," /**"," * Bounces back"," * @TODO: Should be more generalized and support both X and Y detection"," *"," * @method _snapBack"," * @private"," */"," _snapBack: function () {"," var sv = this,"," currentX = sv.get(SCROLL_X),"," currentY = sv.get(SCROLL_Y),"," minX = sv._minScrollX,"," minY = sv._minScrollY,"," maxX = sv._maxScrollX,"," maxY = sv._maxScrollY,"," newY = _constrain(currentY, minY, maxY),"," newX = _constrain(currentX, minX, maxX),"," duration = sv.get(SNAP_DURATION),"," easing = sv.get(SNAP_EASING);",""," if (newX !== currentX) {"," sv.set(SCROLL_X, newX, {duration:duration, easing:easing});"," }"," else if (newY !== currentY) {"," sv.set(SCROLL_Y, newY, {duration:duration, easing:easing});"," }"," else {"," // It shouldn't ever get here, but in case it does, fire scrollEnd"," sv._onTransEnd();"," }"," },",""," /**"," * After listener for changes to the scrollX or scrollY attribute"," *"," * @method _afterScrollChange"," * @param e {Event.Facade} The event facade"," * @protected"," */"," _afterScrollChange: function (e) {",""," if (e.src === ScrollView.UI_SRC) {"," return false;"," }",""," var sv = this,"," duration = e.duration,"," easing = e.easing,"," val = e.newVal,"," scrollToArgs = [];",""," // Set the scrolled value"," sv.lastScrolledAmt = sv.lastScrolledAmt + (e.newVal - e.prevVal);",""," // Generate the array of args to pass to scrollTo()"," if (e.attrName === SCROLL_X) {"," scrollToArgs.push(val);"," scrollToArgs.push(sv.get(SCROLL_Y));"," }"," else {"," scrollToArgs.push(sv.get(SCROLL_X));"," scrollToArgs.push(val);"," }",""," scrollToArgs.push(duration);"," scrollToArgs.push(easing);",""," sv.scrollTo.apply(sv, scrollToArgs);"," },",""," /**"," * After listener for changes to the flick attribute"," *"," * @method _afterFlickChange"," * @param e {Event.Facade} The event facade"," * @protected"," */"," _afterFlickChange: function (e) {"," this._bindFlick(e.newVal);"," },",""," /**"," * After listener for changes to the disabled attribute"," *"," * @method _afterDisabledChange"," * @param e {Event.Facade} The event facade"," * @protected"," */"," _afterDisabledChange: function (e) {"," // Cache for performance - we check during move"," this._cDisabled = e.newVal;"," },",""," /**"," * After listener for the axis attribute"," *"," * @method _afterAxisChange"," * @param e {Event.Facade} The event facade"," * @protected"," */"," _afterAxisChange: function (e) {"," this._cAxis = e.newVal;"," },",""," /**"," * After listener for changes to the drag attribute"," *"," * @method _afterDragChange"," * @param e {Event.Facade} The event facade"," * @protected"," */"," _afterDragChange: function (e) {"," this._bindDrag(e.newVal);"," },",""," /**"," * After listener for the height or width attribute"," *"," * @method _afterDimChange"," * @param e {Event.Facade} The event facade"," * @protected"," */"," _afterDimChange: function () {"," this._uiDimensionsChange();"," },",""," /**"," * After listener for scrollEnd, for cleanup"," *"," * @method _afterScrollEnd"," * @param e {Event.Facade} The event facade"," * @protected"," */"," _afterScrollEnd: function (e) {"," var sv = this;",""," // @TODO: Move to sv._cancelFlick()"," if (sv._flickAnim) {"," // Cancel the flick (if it exists)"," sv._flickAnim.cancel();",""," // Also delete it, otherwise _onGestureMoveStart will think we're still flicking"," delete sv._flickAnim;"," }",""," // If for some reason we're OOB, snapback"," if (sv._isOutOfBounds()) {"," sv._snapBack();"," }",""," // Ideally this should be removed, but doing so causing some JS errors with fast swiping "," // because _gesture is being deleted after the previous one has been overwritten"," // delete sv._gesture; // TODO: Move to sv.prevGesture?"," },",""," /**"," * Setter for 'axis' attribute"," *"," * @method _axisSetter"," * @param val {Mixed} A string ('x', 'y', 'xy') to specify which axis/axes to allow scrolling on"," * @param name {String} The attribute name"," * @return {Object} An object to specify scrollability on the x & y axes"," * "," * @protected"," */"," _axisSetter: function (val, name) {",""," // Turn a string into an axis object"," if (Y.Lang.isString(val)) {"," return {"," x: val.match(/x/i) ? true : false,"," y: val.match(/y/i) ? true : false"," };"," }"," },"," "," /**"," * The scrollX, scrollY setter implementation"," *"," * @method _setScroll"," * @private"," * @param {Number} val"," * @param {String} dim"," *"," * @return {Number} The value"," */"," _setScroll : function(val, dim) {",""," // Just ensure the widget is not disabled"," if (this._cDisabled) {"," val = Y.Attribute.INVALID_VALUE;"," } ",""," return val;"," },",""," /**"," * Setter for the scrollX attribute"," *"," * @method _setScrollX"," * @param val {Number} The new scrollX value"," * @return {Number} The normalized value"," * @protected"," */"," _setScrollX: function(val) {"," return this._setScroll(val, DIM_X);"," },",""," /**"," * Setter for the scrollY ATTR"," *"," * @method _setScrollY"," * @param val {Number} The new scrollY value"," * @return {Number} The normalized value"," * @protected"," */"," _setScrollY: function(val) {"," return this._setScroll(val, DIM_Y);"," }",""," // End prototype properties","","}, {",""," // Static properties",""," /**"," * The identity of the widget."," *"," * @property NAME"," * @type String"," * @default 'scrollview'"," * @readOnly"," * @protected"," * @static"," */"," NAME: 'scrollview',",""," /**"," * Static property used to define the default attribute configuration of"," * the Widget."," *"," * @property ATTRS"," * @type {Object}"," * @protected"," * @static"," */"," ATTRS: {",""," /**"," * Specifies ability to scroll on x, y, or x and y axis/axes."," *"," * @attribute axis"," * @type String"," */"," axis: {"," setter: '_axisSetter',"," writeOnce: 'initOnly'"," },",""," /**"," * The current scroll position in the x-axis"," *"," * @attribute scrollX"," * @type Number"," * @default 0"," */"," scrollX: {"," value: 0,"," setter: '_setScrollX'"," },",""," /**"," * The current scroll position in the y-axis"," *"," * @attribute scrollY"," * @type Number"," * @default 0"," */"," scrollY: {"," value: 0,"," setter: '_setScrollY'"," },",""," /**"," * Drag coefficent for inertial scrolling. The closer to 1 this"," * value is, the less friction during scrolling."," *"," * @attribute deceleration"," * @default 0.93"," */"," deceleration: {"," value: 0.93"," },",""," /**"," * Drag coefficient for intertial scrolling at the upper"," * and lower boundaries of the scrollview. Set to 0 to"," * disable \"rubber-banding\"."," *"," * @attribute bounce"," * @type Number"," * @default 0.1"," */"," bounce: {"," value: 0.1"," },",""," /**"," * The minimum distance and/or velocity which define a flick. Can be set to false,"," * to disable flick support (note: drag support is enabled/disabled separately)"," *"," * @attribute flick"," * @type Object"," * @default Object with properties minDistance = 10, minVelocity = 0.3."," */"," flick: {"," value: {"," minDistance: 10,"," minVelocity: 0.3"," }"," },",""," /**"," * Enable/Disable dragging the ScrollView content (note: flick support is enabled/disabled separately)"," * @attribute drag"," * @type boolean"," * @default true"," */"," drag: {"," value: true"," },",""," /**"," * The default duration to use when animating the bounce snap back."," *"," * @attribute snapDuration"," * @type Number"," * @default 400"," */"," snapDuration: {"," value: 400"," },",""," /**"," * The default easing to use when animating the bounce snap back."," *"," * @attribute snapEasing"," * @type String"," * @default 'ease-out'"," */"," snapEasing: {"," value: 'ease-out'"," },",""," /**"," * The default easing used when animating the flick"," *"," * @attribute easing"," * @type String"," * @default 'cubic-bezier(0, 0.1, 0, 1.0)'"," */"," easing: {"," value: 'cubic-bezier(0, 0.1, 0, 1.0)'"," },",""," /**"," * The interval (ms) used when animating the flick for JS-timer animations"," *"," * @attribute frameDuration"," * @type Number"," * @default 15"," */"," frameDuration: {"," value: 15"," },",""," /**"," * The default bounce distance in pixels"," *"," * @attribute bounceRange"," * @type Number"," * @default 150"," */"," bounceRange: {"," value: 150"," }"," },",""," /**"," * List of class names used in the scrollview's DOM"," *"," * @property CLASS_NAMES"," * @type Object"," * @static"," */"," CLASS_NAMES: CLASS_NAMES,",""," /**"," * Flag used to source property changes initiated from the DOM"," *"," * @property UI_SRC"," * @type String"," * @static"," * @default 'ui'"," */"," UI_SRC: UI,",""," /**"," * Object map of style property names used to set transition properties."," * Defaults to the vendor prefix established by the Transition module."," * The configured property names are `_TRANSITION.DURATION` (e.g. \"WebkitTransitionDuration\") and"," * `_TRANSITION.PROPERTY (e.g. \"WebkitTransitionProperty\")."," *"," * @property _TRANSITION"," * @private"," */"," _TRANSITION: {"," DURATION: Y.Transition._VENDOR_PREFIX + 'TransitionDuration',"," PROPERTY: Y.Transition._VENDOR_PREFIX + 'TransitionProperty'"," },",""," /**"," * The default bounce distance in pixels"," *"," * @property BOUNCE_RANGE"," * @type Number"," * @static"," * @default false"," * @deprecated (in 3.7.0)"," */"," BOUNCE_RANGE: false,",""," /**"," * The interval (ms) used when animating the flick"," *"," * @property FRAME_STEP"," * @type Number"," * @static"," * @default false"," * @deprecated (in 3.7.0)"," */"," FRAME_STEP: false,",""," /**"," * The default easing used when animating the flick"," *"," * @property EASING"," * @type String"," * @static"," * @default false"," * @deprecated (in 3.7.0)"," */"," EASING: false,",""," /**"," * The default easing to use when animating the bounce snap back."," *"," * @property SNAP_EASING"," * @type String"," * @static"," * @default false"," * @deprecated (in 3.7.0)"," */"," SNAP_EASING: false,",""," /**"," * The default duration to use when animating the bounce snap back."," *"," * @property SNAP_DURATION"," * @type Number"," * @static"," * @default false"," * @deprecated (in 3.7.0)"," */"," SNAP_DURATION: false",""," // End static properties","","});","","}, '3.7.1', {\"requires\": [\"widget\", \"event-gestures\", \"event-mousewheel\", \"transition\"], \"skinnable\": true});"];
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YUI.add('scrollview-base', function (Y, NAME) {
/**
* The scrollview-base module provides a basic ScrollView Widget, without scrollbar indicators
*
* @module scrollview
* @submodule scrollview-base
*/
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var getClassName = Y.ClassNameManager.getClassName,
DOCUMENT = Y.config.doc,
WINDOW = Y.config.win,
IE = Y.UA.ie,
NATIVE_TRANSITIONS = Y.Transition.useNative,
SCROLLVIEW = 'scrollview',
CLASS_NAMES = {
vertical: getClassName(SCROLLVIEW, 'vert'),
horizontal: getClassName(SCROLLVIEW, 'horiz')
},
EV_SCROLL_END = 'scrollEnd',
FLICK = 'flick',
DRAG = 'drag',
MOUSEWHEEL = 'mousewheel',
UI = 'ui',
TOP = 'top',
RIGHT = 'right',
BOTTOM = 'bottom',
LEFT = 'left',
PX = 'px',
AXIS = 'axis',
SCROLL_Y = 'scrollY',
SCROLL_X = 'scrollX',
BOUNCE = 'bounce',
DISABLED = 'disabled',
DECELERATION = 'deceleration',
DIM_X = 'x',
DIM_Y = 'y',
BOUNDING_BOX = 'boundingBox',
CONTENT_BOX = 'contentBox',
GESTURE_MOVE = 'gesturemove',
START = 'start',
END = 'end',
EMPTY = '',
ZERO = '0s',
SNAP_DURATION = 'snapDuration',
SNAP_EASING = 'snapEasing',
EASING = 'easing',
FRAME_DURATION = 'frameDuration',
BOUNCE_RANGE = 'bounceRange',
_constrain = function (val, min, max) {
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return Math.min(Math.max(val, min), max);
};
/**
* ScrollView provides a scrollable widget, supporting flick gestures,
* across both touch and mouse based devices.
*
* @class ScrollView
* @param config {Object} Object literal with initial attribute values
* @extends Widget
* @constructor
*/
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function ScrollView() {
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ScrollView.superclass.constructor.apply(this, arguments);
}
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Y.ScrollView = Y.extend(ScrollView, Y.Widget, {
// *** Y.ScrollView prototype
/**
* Flag driving whether or not we should try and force H/W acceleration when transforming. Currently enabled by default for Webkit.
* Used by the _transform method.
*
* @property _forceHWTransforms
* @type boolean
* @protected
*/
_forceHWTransforms: Y.UA.webkit ? true : false,
/**
* <p>Used to control whether or not ScrollView's internal
* gesturemovestart, gesturemove and gesturemoveend
* event listeners should preventDefault. The value is an
* object, with "start", "move" and "end" properties used to
* specify which events should preventDefault and which shouldn't:</p>
*
* <pre>
* {
* start: false,
* move: true,
* end: false
* }
* </pre>
*
* <p>The default values are set up in order to prevent panning,
* on touch devices, while allowing click listeners on elements inside
* the ScrollView to be notified as expected.</p>
*
* @property _prevent
* @type Object
* @protected
*/
_prevent: {
start: false,
move: true,
end: false
},
/**
* Contains the distance (postive or negative) in pixels by which
* the scrollview was last scrolled. This is useful when setting up
* click listeners on the scrollview content, which on mouse based
* devices are always fired, even after a drag/flick.
*
* <p>Touch based devices don't currently fire a click event,
* if the finger has been moved (beyond a threshold) so this
* check isn't required, if working in a purely touch based environment</p>
*
* @property lastScrolledAmt
* @type Number
* @public
* @default 0
*/
lastScrolledAmt: 0,
/**
* Designated initializer
*
* @method initializer
* @param {config} Configuration object for the plugin
*/
initializer: function (config) {
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_yuitest_coverline("build/scrollview-base/scrollview-base.js", 134);
var sv = this;
// Cache these values, since they aren't going to change.
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sv._bb = sv.get(BOUNDING_BOX);
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sv._cb = sv.get(CONTENT_BOX);
// Cache some attributes
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sv._cAxis = sv.get(AXIS);
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sv._cBounce = sv.get(BOUNCE);
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sv._cBounceRange = sv.get(BOUNCE_RANGE);
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sv._cDeceleration = sv.get(DECELERATION);
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sv._cFrameDuration = sv.get(FRAME_DURATION);
},
/**
* bindUI implementation
*
* Hooks up events for the widget
* @method bindUI
*/
bindUI: function () {
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var sv = this;
// Bind interaction listers
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sv._bindFlick(sv.get(FLICK));
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sv._bindDrag(sv.get(DRAG));
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sv._bindMousewheel(true);
// Bind change events
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sv._bindAttrs();
// IE SELECT HACK. See if we can do this non-natively and in the gesture for a future release.
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if (IE) {
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sv._fixIESelect(sv._bb, sv._cb);
}
// Set any deprecated static properties
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if (ScrollView.SNAP_DURATION) {
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sv.set(SNAP_DURATION, ScrollView.SNAP_DURATION);
}
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if (ScrollView.SNAP_EASING) {
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sv.set(SNAP_EASING, ScrollView.SNAP_EASING);
}
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if (ScrollView.EASING) {
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sv.set(EASING, ScrollView.EASING);
}
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if (ScrollView.FRAME_STEP) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 184);
sv.set(FRAME_DURATION, ScrollView.FRAME_STEP);
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 187);
if (ScrollView.BOUNCE_RANGE) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 188);
sv.set(BOUNCE_RANGE, ScrollView.BOUNCE_RANGE);
}
// Recalculate dimension properties
// TODO: This should be throttled.
// Y.one(WINDOW).after('resize', sv._afterDimChange, sv);
},
/**
* Bind event listeners
*
* @method _bindAttrs
* @private
*/
_bindAttrs: function () {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_bindAttrs", 202);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 203);
var sv = this,
scrollChangeHandler = sv._afterScrollChange,
dimChangeHandler = sv._afterDimChange;
// Bind any change event listeners
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 208);
sv.after({
'scrollEnd': sv._afterScrollEnd,
'disabledChange': sv._afterDisabledChange,
'flickChange': sv._afterFlickChange,
'dragChange': sv._afterDragChange,
'axisChange': sv._afterAxisChange,
'scrollYChange': scrollChangeHandler,
'scrollXChange': scrollChangeHandler,
'heightChange': dimChangeHandler,
'widthChange': dimChangeHandler
});
},
/**
* Bind (or unbind) gesture move listeners required for drag support
*
* @method _bindDrag
* @param drag {boolean} If true, the method binds listener to enable drag (gesturemovestart). If false, the method unbinds gesturemove listeners for drag support.
* @private
*/
_bindDrag: function (drag) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_bindDrag", 228);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 229);
var sv = this,
bb = sv._bb;
// Unbind any previous 'drag' listeners
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 233);
bb.detach(DRAG + '|*');
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 235);
if (drag) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 236);
bb.on(DRAG + '|' + GESTURE_MOVE + START, Y.bind(sv._onGestureMoveStart, sv));
}
},
/**
* Bind (or unbind) flick listeners.
*
* @method _bindFlick
* @param flick {Object|boolean} If truthy, the method binds listeners for flick support. If false, the method unbinds flick listeners.
* @private
*/
_bindFlick: function (flick) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_bindFlick", 247);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 248);
var sv = this,
bb = sv._bb;
// Unbind any previous 'flick' listeners
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 252);
bb.detach(FLICK + '|*');
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 254);
if (flick) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 255);
bb.on(FLICK + '|' + FLICK, Y.bind(sv._flick, sv), flick);
// Rebind Drag, becuase _onGestureMoveEnd always has to fire -after- _flick
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 258);
sv._bindDrag(sv.get(DRAG));
}
},
/**
* Bind (or unbind) mousewheel listeners.
*
* @method _bindMousewheel
* @param mousewheel {Object|boolean} If truthy, the method binds listeners for mousewheel support. If false, the method unbinds mousewheel listeners.
* @private
*/
_bindMousewheel: function (mousewheel) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_bindMousewheel", 269);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 270);
var sv = this,
bb = sv._bb;
// Unbind any previous 'mousewheel' listeners
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 274);
bb.detach(MOUSEWHEEL + '|*');
// Only enable for vertical scrollviews
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 277);
if (mousewheel) {
// Bound to document, because that's where mousewheel events fire off of.
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 279);
Y.one(DOCUMENT).on(MOUSEWHEEL, Y.bind(sv._mousewheel, sv));
}
},
/**
* syncUI implementation.
*
* Update the scroll position, based on the current value of scrollX/scrollY.
*
* @method syncUI
*/
syncUI: function () {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "syncUI", 290);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 291);
var sv = this,
scrollDims = sv._getScrollDims(),
width = scrollDims.offsetWidth,
height = scrollDims.offsetHeight,
scrollWidth = scrollDims.scrollWidth,
scrollHeight = scrollDims.scrollHeight;
// If the axis is undefined, auto-calculate it
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 299);
if (sv._cAxis === undefined) {
// This should only ever be run once (for now).
// In the future SV might post-load axis changes
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 302);
sv._cAxis = {
x: (scrollWidth > width),
y: (scrollHeight > height)
};
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 307);
sv._set(AXIS, sv._cAxis);
}
// get text direction on or inherited by scrollview node
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 311);
sv.rtl = (sv._cb.getComputedStyle('direction') === 'rtl');
// Cache the disabled value
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 314);
sv._cDisabled = sv.get(DISABLED);
// Run this to set initial values
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 317);
sv._uiDimensionsChange();
// If we're out-of-bounds, snap back.
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 320);
if (sv._isOutOfBounds()) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 321);
sv._snapBack();
}
},
/**
* Utility method to obtain widget dimensions
*
* @method _getScrollDims
* @returns {Object} The offsetWidth, offsetHeight, scrollWidth and scrollHeight as an array: [offsetWidth, offsetHeight, scrollWidth, scrollHeight]
* @private
*/
_getScrollDims: function () {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_getScrollDims", 332);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 333);
var sv = this,
cb = sv._cb,
bb = sv._bb,
TRANS = ScrollView._TRANSITION,
// Ideally using CSSMatrix - don't think we have it normalized yet though.
// origX = (new WebKitCSSMatrix(cb.getComputedStyle("transform"))).e,
// origY = (new WebKitCSSMatrix(cb.getComputedStyle("transform"))).f,
origX = sv.get(SCROLL_X),
origY = sv.get(SCROLL_Y),
origHWTransform,
dims;
// TODO: Is this OK? Just in case it's called 'during' a transition.
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 346);
if (NATIVE_TRANSITIONS) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 347);
cb.setStyle(TRANS.DURATION, ZERO);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 348);
cb.setStyle(TRANS.PROPERTY, EMPTY);
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 351);
origHWTransform = sv._forceHWTransforms;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 352);
sv._forceHWTransforms = false; // the z translation was causing issues with picking up accurate scrollWidths in Chrome/Mac.
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 354);
sv._moveTo(cb, 0, 0);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 355);
dims = {
'offsetWidth': bb.get('offsetWidth'),
'offsetHeight': bb.get('offsetHeight'),
'scrollWidth': bb.get('scrollWidth'),
'scrollHeight': bb.get('scrollHeight')
};
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 361);
sv._moveTo(cb, -(origX), -(origY));
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 363);
sv._forceHWTransforms = origHWTransform;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 365);
return dims;
},
/**
* This method gets invoked whenever the height or width attributes change,
* allowing us to determine which scrolling axes need to be enabled.
*
* @method _uiDimensionsChange
* @protected
*/
_uiDimensionsChange: function () {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_uiDimensionsChange", 375);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 376);
var sv = this,
bb = sv._bb,
scrollDims = sv._getScrollDims(),
width = scrollDims.offsetWidth,
height = scrollDims.offsetHeight,
scrollWidth = scrollDims.scrollWidth,
scrollHeight = scrollDims.scrollHeight,
rtl = sv.rtl,
svAxis = sv._cAxis;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 386);
if (svAxis && svAxis.x) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 387);
bb.addClass(CLASS_NAMES.horizontal);
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 390);
if (svAxis && svAxis.y) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 391);
bb.addClass(CLASS_NAMES.vertical);
}
/**
* Internal state, defines the minimum amount that the scrollview can be scrolled along the X axis
*
* @property _minScrollX
* @type number
* @protected
*/
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 401);
sv._minScrollX = (rtl) ? Math.min(0, -(scrollWidth - width)) : 0;
/**
* Internal state, defines the maximum amount that the scrollview can be scrolled along the X axis
*
* @property _maxScrollX
* @type number
* @protected
*/
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 410);
sv._maxScrollX = (rtl) ? 0 : Math.max(0, scrollWidth - width);
/**
* Internal state, defines the minimum amount that the scrollview can be scrolled along the Y axis
*
* @property _minScrollY
* @type number
* @protected
*/
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 419);
sv._minScrollY = 0;
/**
* Internal state, defines the maximum amount that the scrollview can be scrolled along the Y axis
*
* @property _maxScrollY
* @type number
* @protected
*/
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 428);
sv._maxScrollY = Math.max(0, scrollHeight - height);
},
/**
* Scroll the element to a given xy coordinate
*
* @method scrollTo
* @param x {Number} The x-position to scroll to. (null for no movement)
* @param y {Number} The y-position to scroll to. (null for no movement)
* @param {Number} [duration] ms of the scroll animation. (default is 0)
* @param {String} [easing] An easing equation if duration is set. (default is `easing` attribute)
* @param {String} [node] The node to transform. Setting this can be useful in dual-axis paginated instances. (default is the instance's contentBox)
*/
scrollTo: function (x, y, duration, easing, node) {
// Check to see if widget is disabled
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "scrollTo", 441);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 443);
if (this._cDisabled) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 444);
return;
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 447);
var sv = this,
cb = sv._cb,
TRANS = ScrollView._TRANSITION,
callback = Y.bind(sv._onTransEnd, sv), // @Todo : cache this
newX = 0,
newY = 0,
transition = {},
transform;
// default the optional arguments
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 457);
duration = duration || 0;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 458);
easing = easing || sv.get(EASING); // @TODO: Cache this
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 459);
node = node || cb;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 461);
if (x !== null) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 462);
sv.set(SCROLL_X, x, {src:UI});
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 463);
newX = -(x);
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 466);
if (y !== null) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 467);
sv.set(SCROLL_Y, y, {src:UI});
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 468);
newY = -(y);
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 471);
transform = sv._transform(newX, newY);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 473);
if (NATIVE_TRANSITIONS) {
// ANDROID WORKAROUND - try and stop existing transition, before kicking off new one.
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 475);
node.setStyle(TRANS.DURATION, ZERO).setStyle(TRANS.PROPERTY, EMPTY);
}
// Move
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 479);
if (duration === 0) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 480);
if (NATIVE_TRANSITIONS) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 481);
node.setStyle('transform', transform);
}
else {
// TODO: If both set, batch them in the same update
// Update: Nope, setStyles() just loops through each property and applies it.
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 486);
if (x !== null) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 487);
node.setStyle(LEFT, newX + PX);
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 489);
if (y !== null) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 490);
node.setStyle(TOP, newY + PX);
}
}
}
// Animate
else {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 497);
transition.easing = easing;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 498);
transition.duration = duration / 1000;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 500);
if (NATIVE_TRANSITIONS) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 501);
transition.transform = transform;
}
else {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 504);
transition.left = newX + PX;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 505);
transition.top = newY + PX;
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 508);
node.transition(transition, callback);
}
},
/**
* Utility method, to create the translate transform string with the
* x, y translation amounts provided.
*
* @method _transform
* @param {Number} x Number of pixels to translate along the x axis
* @param {Number} y Number of pixels to translate along the y axis
* @private
*/
_transform: function (x, y) {
// TODO: Would we be better off using a Matrix for this?
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_transform", 521);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 523);
var prop = 'translate(' + x + 'px, ' + y + 'px)';
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 525);
if (this._forceHWTransforms) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 526);
prop += ' translateZ(0)';
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 529);
return prop;
},
/**
* Utility method, to move the given element to the given xy position
*
* @method _moveTo
* @param node {Node} The node to move
* @param x {Number} The x-position to move to
* @param y {Number} The y-position to move to
* @private
*/
_moveTo : function(node, x, y) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_moveTo", 541);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 542);
if (NATIVE_TRANSITIONS) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 543);
node.setStyle('transform', this._transform(x, y));
} else {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 545);
node.setStyle(LEFT, x + PX);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 546);
node.setStyle(TOP, y + PX);
}
},
/**
* Content box transition callback
*
* @method _onTransEnd
* @param {Event.Facade} e The event facade
* @private
*/
_onTransEnd: function (e) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_onTransEnd", 558);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 559);
var sv = this;
/**
* Notification event fired at the end of a scroll transition
*
* @event scrollEnd
* @param e {EventFacade} The default event facade.
*/
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 567);
sv.fire(EV_SCROLL_END);
},
/**
* gesturemovestart event handler
*
* @method _onGestureMoveStart
* @param e {Event.Facade} The gesturemovestart event facade
* @private
*/
_onGestureMoveStart: function (e) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_onGestureMoveStart", 577);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 579);
if (this._cDisabled) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 580);
return false;
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 583);
var sv = this,
bb = sv._bb,
currentX = sv.get(SCROLL_X),
currentY = sv.get(SCROLL_Y),
clientX = e.clientX,
clientY = e.clientY;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 590);
if (sv._prevent.start) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 591);
e.preventDefault();
}
// if a flick animation is in progress, cancel it
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 595);
if (sv._flickAnim) {
// Cancel and delete sv._flickAnim
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 597);
sv._flickAnim.cancel();
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 598);
delete sv._flickAnim;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 599);
sv._onTransEnd();
}
// TODO: Review if neccesary (#2530129)
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 603);
e.stopPropagation();
// Reset lastScrolledAmt
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 606);
sv.lastScrolledAmt = 0;
// Stores data for this gesture cycle. Cleaned up later
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 609);
sv._gesture = {
// Will hold the axis value
axis: null,
// The current attribute values
startX: currentX,
startY: currentY,
// The X/Y coordinates where the event began
startClientX: clientX,
startClientY: clientY,
// The X/Y coordinates where the event will end
endClientX: null,
endClientY: null,
// The current delta of the event
deltaX: null,
deltaY: null,
// Will be populated for flicks
flick: null,
// Create some listeners for the rest of the gesture cycle
onGestureMove: bb.on(DRAG + '|' + GESTURE_MOVE, Y.bind(sv._onGestureMove, sv)),
// @TODO: Don't bind gestureMoveEnd if it's a Flick?
onGestureMoveEnd: bb.on(DRAG + '|' + GESTURE_MOVE + END, Y.bind(sv._onGestureMoveEnd, sv))
};
},
/**
* gesturemove event handler
*
* @method _onGestureMove
* @param e {Event.Facade} The gesturemove event facade
* @private
*/
_onGestureMove: function (e) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_onGestureMove", 648);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 649);
var sv = this,
gesture = sv._gesture,
svAxis = sv._cAxis,
svAxisX = svAxis.x,
svAxisY = svAxis.y,
startX = gesture.startX,
startY = gesture.startY,
startClientX = gesture.startClientX,
startClientY = gesture.startClientY,
clientX = e.clientX,
clientY = e.clientY;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 661);
if (sv._prevent.move) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 662);
e.preventDefault();
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 665);
gesture.deltaX = startClientX - clientX;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 666);
gesture.deltaY = startClientY - clientY;
// Determine if this is a vertical or horizontal movement
// @TODO: This is crude, but it works. Investigate more intelligent ways to detect intent
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 670);
if (gesture.axis === null) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 671);
gesture.axis = (Math.abs(gesture.deltaX) > Math.abs(gesture.deltaY)) ? DIM_X : DIM_Y;
}
// Move X or Y. @TODO: Move both if dualaxis.
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 675);
if (gesture.axis === DIM_X && svAxisX) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 676);
sv.set(SCROLL_X, startX + gesture.deltaX);
}
else {_yuitest_coverline("build/scrollview-base/scrollview-base.js", 678);
if (gesture.axis === DIM_Y && svAxisY) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 679);
sv.set(SCROLL_Y, startY + gesture.deltaY);
}}
},
/**
* gesturemoveend event handler
*
* @method _onGestureMoveEnd
* @param e {Event.Facade} The gesturemoveend event facade
* @private
*/
_onGestureMoveEnd: function (e) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_onGestureMoveEnd", 690);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 691);
var sv = this,
gesture = sv._gesture,
flick = gesture.flick,
clientX = e.clientX,
clientY = e.clientY;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 697);
if (sv._prevent.end) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 698);
e.preventDefault();
}
// Store the end X/Y coordinates
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 702);
gesture.endClientX = clientX;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 703);
gesture.endClientY = clientY;
// Cleanup the event handlers
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 706);
gesture.onGestureMove.detach();
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 707);
gesture.onGestureMoveEnd.detach();
// If this wasn't a flick, wrap up the gesture cycle
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 710);
if (!flick) {
// @TODO: Be more intelligent about this. Look at the Flick attribute to see
// if it is safe to assume _flick did or didn't fire.
// Then, the order _flick and _onGestureMoveEnd fire doesn't matter?
// If there was movement (_onGestureMove fired)
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 716);
if (gesture.deltaX !== null && gesture.deltaY !== null) {
// If we're out-out-bounds, then snapback
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 719);
if (sv._isOutOfBounds()) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 720);
sv._snapBack();
}
// Inbounds
else {
// Don't fire scrollEnd on the gesture axis is the same as paginator's
// Not totally confident this is ideal to access a plugin's properties from a host, @TODO revisit
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 727);
if (sv.pages && !sv.pages.get(AXIS)[gesture.axis]) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 728);
sv._onTransEnd();
}
}
}
}
},
/**
* Execute a flick at the end of a scroll action
*
* @method _flick
* @param e {Event.Facade} The Flick event facade
* @private
*/
_flick: function (e) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_flick", 742);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 743);
if (this._cDisabled) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 744);
return false;
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 747);
var sv = this,
svAxis = sv._cAxis,
flick = e.flick,
flickAxis = flick.axis,
flickVelocity = flick.velocity,
axisAttr = flickAxis === DIM_X ? SCROLL_X : SCROLL_Y,
startPosition = sv.get(axisAttr);
// Sometimes flick is enabled, but drag is disabled
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 756);
if (sv._gesture) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 757);
sv._gesture.flick = flick;
}
// Prevent unneccesary firing of _flickFrame if we can't scroll on the flick axis
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 761);
if (svAxis[flickAxis]) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 762);
sv._flickFrame(flickVelocity, flickAxis, startPosition);
}
},
/**
* Execute a single frame in the flick animation
*
* @method _flickFrame
* @param velocity {Number} The velocity of this animated frame
* @param flickAxis {String} The axis on which to animate
* @param startPosition {Number} The starting X/Y point to flick from
* @protected
*/
_flickFrame: function (velocity, flickAxis, startPosition) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_flickFrame", 775);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 777);
var sv = this,
axisAttr = flickAxis === DIM_X ? SCROLL_X : SCROLL_Y,
// Localize cached values
bounce = sv._cBounce,
bounceRange = sv._cBounceRange,
deceleration = sv._cDeceleration,
frameDuration = sv._cFrameDuration,
// Calculate
newVelocity = velocity * deceleration,
newPosition = startPosition - (frameDuration * newVelocity),
// Some convinience conditions
min = flickAxis === DIM_X ? sv._minScrollX : sv._minScrollY,
max = flickAxis === DIM_X ? sv._maxScrollX : sv._maxScrollY,
belowMin = (newPosition < min),
belowMax = (newPosition < max),
aboveMin = (newPosition > min),
aboveMax = (newPosition > max),
belowMinRange = (newPosition < (min - bounceRange)),
belowMaxRange = (newPosition < (max + bounceRange)),
withinMinRange = (belowMin && (newPosition > (min - bounceRange))),
withinMaxRange = (aboveMax && (newPosition < (max + bounceRange))),
aboveMinRange = (newPosition > (min - bounceRange)),
aboveMaxRange = (newPosition > (max + bounceRange)),
tooSlow;
// If we're within the range but outside min/max, dampen the velocity
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 806);
if (withinMinRange || withinMaxRange) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 807);
newVelocity *= bounce;
}
// Is the velocity too slow to bother?
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 811);
tooSlow = (Math.abs(newVelocity).toFixed(4) < 0.015);
// If the velocity is too slow or we're outside the range
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 814);
if (tooSlow || belowMinRange || aboveMaxRange) {
// Cancel and delete sv._flickAnim
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 816);
if (sv._flickAnim) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 817);
sv._flickAnim.cancel();
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 818);
delete sv._flickAnim;
}
// If we're inside the scroll area, just end
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 822);
if (aboveMin && belowMax) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 823);
sv._onTransEnd();
}
// We're outside the scroll area, so we need to snap back
else {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 828);
sv._snapBack();
}
}
// Otherwise, animate to the next frame
else {
// @TODO: maybe use requestAnimationFrame instead
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 835);
sv._flickAnim = Y.later(frameDuration, sv, '_flickFrame', [newVelocity, flickAxis, newPosition]);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 836);
sv.set(axisAttr, newPosition);
}
},
/**
* Handle mousewheel events on the widget
*
* @method _mousewheel
* @param e {Event.Facade} The mousewheel event facade
* @private
*/
_mousewheel: function (e) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_mousewheel", 847);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 848);
var sv = this,
scrollY = sv.get(SCROLL_Y),
bb = sv._bb,
scrollOffset = 10, // 10px
isForward = (e.wheelDelta > 0),
scrollToY = scrollY - ((isForward ? 1 : -1) * scrollOffset);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 855);
scrollToY = _constrain(scrollToY, sv._minScrollY, sv._maxScrollY);
// Because Mousewheel events fire off 'document', every ScrollView widget will react
// to any mousewheel anywhere on the page. This check will ensure that the mouse is currently
// over this specific ScrollView. Also, only allow mousewheel scrolling on Y-axis,
// becuase otherwise the 'prevent' will block page scrolling.
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 861);
if (bb.contains(e.target) && sv._cAxis[DIM_Y]) {
// Reset lastScrolledAmt
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 864);
sv.lastScrolledAmt = 0;
// Jump to the new offset
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 867);
sv.set(SCROLL_Y, scrollToY);
// if we have scrollbars plugin, update & set the flash timer on the scrollbar
// @TODO: This probably shouldn't be in this module
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 871);
if (sv.scrollbars) {
// @TODO: The scrollbars should handle this themselves
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 873);
sv.scrollbars._update();
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 874);
sv.scrollbars.flash();
// or just this
// sv.scrollbars._hostDimensionsChange();
}
// Fire the 'scrollEnd' event
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 880);
sv._onTransEnd();
// prevent browser default behavior on mouse scroll
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 883);
e.preventDefault();
}
},
/**
* Checks to see the current scrollX/scrollY position beyond the min/max boundary
*
* @method _isOutOfBounds
* @param x {Number} [optional] The X position to check
* @param y {Number} [optional] The Y position to check
* @returns {boolen} Whether the current X/Y position is out of bounds (true) or not (false)
* @private
*/
_isOutOfBounds: function (x, y) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_isOutOfBounds", 896);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 897);
var sv = this,
svAxis = sv._cAxis,
svAxisX = svAxis.x,
svAxisY = svAxis.y,
currentX = x || sv.get(SCROLL_X),
currentY = y || sv.get(SCROLL_Y),
minX = sv._minScrollX,
minY = sv._minScrollY,
maxX = sv._maxScrollX,
maxY = sv._maxScrollY;
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 908);
return (svAxisX && (currentX < minX || currentX > maxX)) || (svAxisY && (currentY < minY || currentY > maxY));
},
/**
* Bounces back
* @TODO: Should be more generalized and support both X and Y detection
*
* @method _snapBack
* @private
*/
_snapBack: function () {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_snapBack", 918);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 919);
var sv = this,
currentX = sv.get(SCROLL_X),
currentY = sv.get(SCROLL_Y),
minX = sv._minScrollX,
minY = sv._minScrollY,
maxX = sv._maxScrollX,
maxY = sv._maxScrollY,
newY = _constrain(currentY, minY, maxY),
newX = _constrain(currentX, minX, maxX),
duration = sv.get(SNAP_DURATION),
easing = sv.get(SNAP_EASING);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 931);
if (newX !== currentX) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 932);
sv.set(SCROLL_X, newX, {duration:duration, easing:easing});
}
else {_yuitest_coverline("build/scrollview-base/scrollview-base.js", 934);
if (newY !== currentY) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 935);
sv.set(SCROLL_Y, newY, {duration:duration, easing:easing});
}
else {
// It shouldn't ever get here, but in case it does, fire scrollEnd
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 939);
sv._onTransEnd();
}}
},
/**
* After listener for changes to the scrollX or scrollY attribute
*
* @method _afterScrollChange
* @param e {Event.Facade} The event facade
* @protected
*/
_afterScrollChange: function (e) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_afterScrollChange", 950);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 952);
if (e.src === ScrollView.UI_SRC) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 953);
return false;
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 956);
var sv = this,
duration = e.duration,
easing = e.easing,
val = e.newVal,
scrollToArgs = [];
// Set the scrolled value
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 963);
sv.lastScrolledAmt = sv.lastScrolledAmt + (e.newVal - e.prevVal);
// Generate the array of args to pass to scrollTo()
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 966);
if (e.attrName === SCROLL_X) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 967);
scrollToArgs.push(val);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 968);
scrollToArgs.push(sv.get(SCROLL_Y));
}
else {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 971);
scrollToArgs.push(sv.get(SCROLL_X));
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 972);
scrollToArgs.push(val);
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 975);
scrollToArgs.push(duration);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 976);
scrollToArgs.push(easing);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 978);
sv.scrollTo.apply(sv, scrollToArgs);
},
/**
* After listener for changes to the flick attribute
*
* @method _afterFlickChange
* @param e {Event.Facade} The event facade
* @protected
*/
_afterFlickChange: function (e) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_afterFlickChange", 988);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 989);
this._bindFlick(e.newVal);
},
/**
* After listener for changes to the disabled attribute
*
* @method _afterDisabledChange
* @param e {Event.Facade} The event facade
* @protected
*/
_afterDisabledChange: function (e) {
// Cache for performance - we check during move
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_afterDisabledChange", 999);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1001);
this._cDisabled = e.newVal;
},
/**
* After listener for the axis attribute
*
* @method _afterAxisChange
* @param e {Event.Facade} The event facade
* @protected
*/
_afterAxisChange: function (e) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_afterAxisChange", 1011);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1012);
this._cAxis = e.newVal;
},
/**
* After listener for changes to the drag attribute
*
* @method _afterDragChange
* @param e {Event.Facade} The event facade
* @protected
*/
_afterDragChange: function (e) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_afterDragChange", 1022);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1023);
this._bindDrag(e.newVal);
},
/**
* After listener for the height or width attribute
*
* @method _afterDimChange
* @param e {Event.Facade} The event facade
* @protected
*/
_afterDimChange: function () {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_afterDimChange", 1033);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1034);
this._uiDimensionsChange();
},
/**
* After listener for scrollEnd, for cleanup
*
* @method _afterScrollEnd
* @param e {Event.Facade} The event facade
* @protected
*/
_afterScrollEnd: function (e) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_afterScrollEnd", 1044);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1045);
var sv = this;
// @TODO: Move to sv._cancelFlick()
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1048);
if (sv._flickAnim) {
// Cancel the flick (if it exists)
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1050);
sv._flickAnim.cancel();
// Also delete it, otherwise _onGestureMoveStart will think we're still flicking
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1053);
delete sv._flickAnim;
}
// If for some reason we're OOB, snapback
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1057);
if (sv._isOutOfBounds()) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1058);
sv._snapBack();
}
// Ideally this should be removed, but doing so causing some JS errors with fast swiping
// because _gesture is being deleted after the previous one has been overwritten
// delete sv._gesture; // TODO: Move to sv.prevGesture?
},
/**
* Setter for 'axis' attribute
*
* @method _axisSetter
* @param val {Mixed} A string ('x', 'y', 'xy') to specify which axis/axes to allow scrolling on
* @param name {String} The attribute name
* @return {Object} An object to specify scrollability on the x & y axes
*
* @protected
*/
_axisSetter: function (val, name) {
// Turn a string into an axis object
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_axisSetter", 1076);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1079);
if (Y.Lang.isString(val)) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1080);
return {
x: val.match(/x/i) ? true : false,
y: val.match(/y/i) ? true : false
};
}
},
/**
* The scrollX, scrollY setter implementation
*
* @method _setScroll
* @private
* @param {Number} val
* @param {String} dim
*
* @return {Number} The value
*/
_setScroll : function(val, dim) {
// Just ensure the widget is not disabled
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_setScroll", 1097);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1100);
if (this._cDisabled) {
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1101);
val = Y.Attribute.INVALID_VALUE;
}
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1104);
return val;
},
/**
* Setter for the scrollX attribute
*
* @method _setScrollX
* @param val {Number} The new scrollX value
* @return {Number} The normalized value
* @protected
*/
_setScrollX: function(val) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_setScrollX", 1115);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1116);
return this._setScroll(val, DIM_X);
},
/**
* Setter for the scrollY ATTR
*
* @method _setScrollY
* @param val {Number} The new scrollY value
* @return {Number} The normalized value
* @protected
*/
_setScrollY: function(val) {
_yuitest_coverfunc("build/scrollview-base/scrollview-base.js", "_setScrollY", 1127);
_yuitest_coverline("build/scrollview-base/scrollview-base.js", 1128);
return this._setScroll(val, DIM_Y);
}
// End prototype properties
}, {
// Static properties
/**
* The identity of the widget.
*
* @property NAME
* @type String
* @default 'scrollview'
* @readOnly
* @protected
* @static
*/
NAME: 'scrollview',
/**
* Static property used to define the default attribute configuration of
* the Widget.
*
* @property ATTRS
* @type {Object}
* @protected
* @static
*/
ATTRS: {
/**
* Specifies ability to scroll on x, y, or x and y axis/axes.
*
* @attribute axis
* @type String
*/
axis: {
setter: '_axisSetter',
writeOnce: 'initOnly'
},
/**
* The current scroll position in the x-axis
*
* @attribute scrollX
* @type Number
* @default 0
*/
scrollX: {
value: 0,
setter: '_setScrollX'
},
/**
* The current scroll position in the y-axis
*
* @attribute scrollY
* @type Number
* @default 0
*/
scrollY: {
value: 0,
setter: '_setScrollY'
},
/**
* Drag coefficent for inertial scrolling. The closer to 1 this
* value is, the less friction during scrolling.
*
* @attribute deceleration
* @default 0.93
*/
deceleration: {
value: 0.93
},
/**
* Drag coefficient for intertial scrolling at the upper
* and lower boundaries of the scrollview. Set to 0 to
* disable "rubber-banding".
*
* @attribute bounce
* @type Number
* @default 0.1
*/
bounce: {
value: 0.1
},
/**
* The minimum distance and/or velocity which define a flick. Can be set to false,
* to disable flick support (note: drag support is enabled/disabled separately)
*
* @attribute flick
* @type Object
* @default Object with properties minDistance = 10, minVelocity = 0.3.
*/
flick: {
value: {
minDistance: 10,
minVelocity: 0.3
}
},
/**
* Enable/Disable dragging the ScrollView content (note: flick support is enabled/disabled separately)
* @attribute drag
* @type boolean
* @default true
*/
drag: {
value: true
},
/**
* The default duration to use when animating the bounce snap back.
*
* @attribute snapDuration
* @type Number
* @default 400
*/
snapDuration: {
value: 400
},
/**
* The default easing to use when animating the bounce snap back.
*
* @attribute snapEasing
* @type String
* @default 'ease-out'
*/
snapEasing: {
value: 'ease-out'
},
/**
* The default easing used when animating the flick
*
* @attribute easing
* @type String
* @default 'cubic-bezier(0, 0.1, 0, 1.0)'
*/
easing: {
value: 'cubic-bezier(0, 0.1, 0, 1.0)'
},
/**
* The interval (ms) used when animating the flick for JS-timer animations
*
* @attribute frameDuration
* @type Number
* @default 15
*/
frameDuration: {
value: 15
},
/**
* The default bounce distance in pixels
*
* @attribute bounceRange
* @type Number
* @default 150
*/
bounceRange: {
value: 150
}
},
/**
* List of class names used in the scrollview's DOM
*
* @property CLASS_NAMES
* @type Object
* @static
*/
CLASS_NAMES: CLASS_NAMES,
/**
* Flag used to source property changes initiated from the DOM
*
* @property UI_SRC
* @type String
* @static
* @default 'ui'
*/
UI_SRC: UI,
/**
* Object map of style property names used to set transition properties.
* Defaults to the vendor prefix established by the Transition module.
* The configured property names are `_TRANSITION.DURATION` (e.g. "WebkitTransitionDuration") and
* `_TRANSITION.PROPERTY (e.g. "WebkitTransitionProperty").
*
* @property _TRANSITION
* @private
*/
_TRANSITION: {
DURATION: Y.Transition._VENDOR_PREFIX + 'TransitionDuration',
PROPERTY: Y.Transition._VENDOR_PREFIX + 'TransitionProperty'
},
/**
* The default bounce distance in pixels
*
* @property BOUNCE_RANGE
* @type Number
* @static
* @default false
* @deprecated (in 3.7.0)
*/
BOUNCE_RANGE: false,
/**
* The interval (ms) used when animating the flick
*
* @property FRAME_STEP
* @type Number
* @static
* @default false
* @deprecated (in 3.7.0)
*/
FRAME_STEP: false,
/**
* The default easing used when animating the flick
*
* @property EASING
* @type String
* @static
* @default false
* @deprecated (in 3.7.0)
*/
EASING: false,
/**
* The default easing to use when animating the bounce snap back.
*
* @property SNAP_EASING
* @type String
* @static
* @default false
* @deprecated (in 3.7.0)
*/
SNAP_EASING: false,
/**
* The default duration to use when animating the bounce snap back.
*
* @property SNAP_DURATION
* @type Number
* @static
* @default false
* @deprecated (in 3.7.0)
*/
SNAP_DURATION: false
// End static properties
});
}, '3.7.1', {"requires": ["widget", "event-gestures", "event-mousewheel", "transition"], "skinnable": true});