ionic/js/views/scrollView.js at master · Java1024/ionic · GitHub

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* Scroller

* http://github.com/zynga/scroller

* Licensed under the MIT License.

* https://raw.github.com/zynga/scroller/master/MIT-LICENSE.txt

* Based on the work of: Unify Project (unify-project.org)

* http://unify-project.org

* License: MIT + Apache (V2)

/* jshint eqnull: true */

/**

* Generic animation class with support for dropped frames both optional easing and duration.

* Optional duration is useful when the lifetime is defined by another condition than time

* e.g. speed of an animating object, etc.

* Dropped frame logic allows to keep using the same updater logic independent from the actual

* rendering. This eases a lot of cases where it might be pretty complex to break down a state

* based on the pure time difference.

var zyngaCore = { effect: {} };

(function(global) {

var time = Date.now || function() {

return +new Date();

};

var desiredFrames = 60;

var millisecondsPerSecond = 1000;

var running = {};

var counter = 1;

zyngaCore.effect.Animate = {

/**

* A requestAnimationFrame wrapper / polyfill.

* @param callback {Function} The callback to be invoked before the next repaint.

* @param root {HTMLElement} The root element for the repaint

requestAnimationFrame: (function() {

// Check for request animation Frame support

var requestFrame = global.requestAnimationFrame || global.webkitRequestAnimationFrame || global.mozRequestAnimationFrame || global.oRequestAnimationFrame;

var isNative = !!requestFrame;

if (requestFrame && !/requestAnimationFrame\(\)\s*\{\s*\[native code\]\s*\}/i.test(requestFrame.toString())) {

isNative = false;

}

if (isNative) {

return function(callback, root) {

requestFrame(callback, root);

};

}

var TARGET_FPS = 60;

var requests = {};

var requestCount = 0;

var rafHandle = 1;

var intervalHandle = null;

var lastActive = +new Date();

return function(callback) {

var callbackHandle = rafHandle++;

// Store callback

requests[callbackHandle] = callback;

requestCount++;

// Create timeout at first request

if (intervalHandle === null) {

intervalHandle = setInterval(function() {

var time = +new Date();

var currentRequests = requests;

// Reset data structure before executing callbacks

requests = {};

requestCount = 0;

for(var key in currentRequests) {

if (currentRequests.hasOwnProperty(key)) {

currentRequests[key](time);

lastActive = time;

}

// Disable the timeout when nothing happens for a certain

// period of time

if (time - lastActive > 2500) {

clearInterval(intervalHandle);

intervalHandle = null;

}

}, 1000 / TARGET_FPS);

}

return callbackHandle;

};

})(),

/**

* Stops the given animation.

* @param id {Integer} Unique animation ID

* @return {Boolean} Whether the animation was stopped (aka, was running before)

stop: function(id) {

var cleared = running[id] != null;

if (cleared) {

running[id] = null;

}

return cleared;

/**

* Whether the given animation is still running.

* @param id {Integer} Unique animation ID

* @return {Boolean} Whether the animation is still running

isRunning: function(id) {

return running[id] != null;

/**

* Start the animation.

* @param stepCallback {Function} Pointer to function which is executed on every step.

* Signature of the method should be `function(percent, now, virtual) { return continueWithAnimation; }`

* @param verifyCallback {Function} Executed before every animation step.

* Signature of the method should be `function() { return continueWithAnimation; }`

* @param completedCallback {Function}

* Signature of the method should be `function(droppedFrames, finishedAnimation) {}`

* @param duration {Integer} Milliseconds to run the animation

* @param easingMethod {Function} Pointer to easing function

* Signature of the method should be `function(percent) { return modifiedValue; }`

* @param root {Element} Render root, when available. Used for internal

* usage of requestAnimationFrame.

* @return {Integer} Identifier of animation. Can be used to stop it any time.

start: function(stepCallback, verifyCallback, completedCallback, duration, easingMethod, root) {

var start = time();

var lastFrame = start;

var percent = 0;

var dropCounter = 0;

var id = counter++;

if (!root) {

root = document.body;

}

// Compacting running db automatically every few new animations

if (id % 20 === 0) {

var newRunning = {};

for (var usedId in running) {

newRunning[usedId] = true;

}

running = newRunning;

}

// This is the internal step method which is called every few milliseconds

var step = function(virtual) {

// Normalize virtual value

var render = virtual !== true;

// Get current time

var now = time();

// Verification is executed before next animation step

if (!running[id] || (verifyCallback && !verifyCallback(id))) {

running[id] = null;

completedCallback && completedCallback(desiredFrames - (dropCounter / ((now - start) / millisecondsPerSecond)), id, false);

return;

}

// For the current rendering to apply let's update omitted steps in memory.

// This is important to bring internal state variables up-to-date with progress in time.

if (render) {

var droppedFrames = Math.round((now - lastFrame) / (millisecondsPerSecond / desiredFrames)) - 1;

for (var j = 0; j < Math.min(droppedFrames, 4); j++) {

step(true);

dropCounter++;

}

// Compute percent value

if (duration) {

percent = (now - start) / duration;

if (percent > 1) {

percent = 1;

}

// Execute step callback, then...

var value = easingMethod ? easingMethod(percent) : percent;

if ((stepCallback(value, now, render) === false || percent === 1) && render) {

running[id] = null;

completedCallback && completedCallback(desiredFrames - (dropCounter / ((now - start) / millisecondsPerSecond)), id, percent === 1 || duration == null);

} else if (render) {

lastFrame = now;

zyngaCore.effect.Animate.requestAnimationFrame(step, root);

}

};

// Mark as running

running[id] = true;

// Init first step

zyngaCore.effect.Animate.requestAnimationFrame(step, root);

// Return unique animation ID

return id;

}

};

})(window);

* Scroller

* http://github.com/zynga/scroller

* Licensed under the MIT License.

* https://raw.github.com/zynga/scroller/master/MIT-LICENSE.txt

* Based on the work of: Unify Project (unify-project.org)

* http://unify-project.org

* License: MIT + Apache (V2)

(function(ionic) {

var NOOP = function(){};

// Open source under the BSD License.

/**

* @param pos {Number} position between 0 (start of effect) and 1 (end of effect)

**/

var easeOutCubic = function(pos) {

return (Math.pow((pos - 1), 3) + 1);

};

/**

* @param pos {Number} position between 0 (start of effect) and 1 (end of effect)

**/

var easeInOutCubic = function(pos) {

if ((pos /= 0.5) < 1) {

return 0.5 * Math.pow(pos, 3);

}

return 0.5 * (Math.pow((pos - 2), 3) + 2);

};

/**

* ionic.views.Scroll

* A powerful scroll view with support for bouncing, pull to refresh, and paging.

* @param {Object} options options for the scroll view

* @class A scroll view system

* @memberof ionic.views

ionic.views.Scroll = ionic.views.View.inherit({

initialize: function(options) {

var self = this;

self.__container = options.el;

self.__content = options.el.firstElementChild;

//Remove any scrollTop attached to these elements; they are virtual scroll now

//This also stops on-load-scroll-to-window.location.hash that the browser does

setTimeout(function() {

if (self.__container && self.__content) {

self.__container.scrollTop = 0;

self.__content.scrollTop = 0;

}

});

self.options = {

/** Disable scrolling on x-axis by default */

scrollingX: false,

scrollbarX: true,

/** Enable scrolling on y-axis */

scrollingY: true,

scrollbarY: true,

startX: 0,

startY: 0,

/** The amount to dampen mousewheel events */

wheelDampen: 6,

/** The minimum size the scrollbars scale to while scrolling */

minScrollbarSizeX: 5,

minScrollbarSizeY: 5,

/** Scrollbar fading after scrolling */

scrollbarsFade: true,

scrollbarFadeDelay: 300,

/** The initial fade delay when the pane is resized or initialized */

scrollbarResizeFadeDelay: 1000,

/** Enable animations for deceleration, snap back, zooming and scrolling */

animating: true,

/** duration for animations triggered by scrollTo/zoomTo */

animationDuration: 250,

/** The velocity required to make the scroll view "slide" after touchend */

decelVelocityThreshold: 4,

/** The velocity required to make the scroll view "slide" after touchend when using paging */

decelVelocityThresholdPaging: 4,

/** Enable bouncing (content can be slowly moved outside and jumps back after releasing) */

bouncing: true,

/** Enable locking to the main axis if user moves only slightly on one of them at start */

locking: true,

/** Enable pagination mode (switching between full page content panes) */

paging: false,

/** Enable snapping of content to a configured pixel grid */

snapping: false,

/** Enable zooming of content via API, fingers and mouse wheel */

zooming: false,

/** Minimum zoom level */

minZoom: 0.5,

/** Maximum zoom level */

maxZoom: 3,

/** Multiply or decrease scrolling speed **/

speedMultiplier: 1,

deceleration: 0.97,

/** Whether to prevent default on a scroll operation to capture drag events **/

preventDefault: false,

/** Callback that is fired on the later of touch end or deceleration end,

provided that another scrolling action has not begun. Used to know

when to fade out a scrollbar. */

scrollingComplete: NOOP,

/** This configures the amount of change applied to deceleration when reaching boundaries **/

penetrationDeceleration: 0.03,

/** This configures the amount of change applied to acceleration when reaching boundaries **/

penetrationAcceleration: 0.08,

// The ms interval for triggering scroll events

scrollEventInterval: 10,

freeze: false,

getContentWidth: function() {

return Math.max(self.__content.scrollWidth, self.__content.offsetWidth);

getContentHeight: function() {

return Math.max(self.__content.scrollHeight, self.__content.offsetHeight + (self.__content.offsetTop * 2));

}

};

for (var key in options) {

self.options[key] = options[key];

}

self.hintResize = ionic.debounce(function() {

self.resize();

}, 1000, true);

self.onScroll = function() {

if (!ionic.scroll.isScrolling) {

setTimeout(self.setScrollStart, 50);

} else {

clearTimeout(self.scrollTimer);

self.scrollTimer = setTimeout(self.setScrollStop, 80);

}

};

self.freeze = function(shouldFreeze) {

if (arguments.length) {

self.options.freeze = shouldFreeze;

}

return self.options.freeze;

};

// We can just use the standard freeze pop in our mouth

self.freezeShut = self.freeze;

self.setScrollStart = function() {

ionic.scroll.isScrolling = Math.abs(ionic.scroll.lastTop - self.__scrollTop) > 1;

clearTimeout(self.scrollTimer);

self.scrollTimer = setTimeout(self.setScrollStop, 80);

};

self.setScrollStop = function() {

ionic.scroll.isScrolling = false;

ionic.scroll.lastTop = self.__scrollTop;

};

self.triggerScrollEvent = ionic.throttle(function() {

self.onScroll();

ionic.trigger('scroll', {

scrollTop: self.__scrollTop,

scrollLeft: self.__scrollLeft,

target: self.__container

});

}, self.options.scrollEventInterval);

self.triggerScrollEndEvent = function() {

ionic.trigger('scrollend', {

scrollTop: self.__scrollTop,

scrollLeft: self.__scrollLeft,

target: self.__container

});

};

self.__scrollLeft = self.options.startX;

self.__scrollTop = self.options.startY;

// Get the render update function, initialize event handlers,

// and calculate the size of the scroll container

self.__callback = self.getRenderFn();

self.__initEventHandlers();

self.__createScrollbars();

run: function() {

this.resize();

// Fade them out

this.__fadeScrollbars('out', this.options.scrollbarResizeFadeDelay);

---------------------------------------------------------------------------

INTERNAL FIELDS :: STATUS

---------------------------------------------------------------------------

/** Whether only a single finger is used in touch handling */

__isSingleTouch: false,

/** Whether a touch event sequence is in progress */

__isTracking: false,

/** Whether a deceleration animation went to completion. */

__didDecelerationComplete: false,

/**

* Whether a gesture zoom/rotate event is in progress. Activates when

* a gesturestart event happens. This has higher priority than dragging.

__isGesturing: false,

/**

* Whether the user has moved by such a distance that we have enabled

* dragging mode. Hint: It's only enabled after some pixels of movement to

* not interrupt with clicks etc.

__isDragging: false,

/**

* Not touching and dragging anymore, and smoothly animating the

* touch sequence using deceleration.

__isDecelerating: false,

/**

* Smoothly animating the currently configured change

__isAnimating: false,

---------------------------------------------------------------------------

INTERNAL FIELDS :: DIMENSIONS

---------------------------------------------------------------------------

/** Available outer left position (from document perspective) */

__clientLeft: 0,

/** Available outer top position (from document perspective) */

__clientTop: 0,

/** Available outer width */

__clientWidth: 0,

/** Available outer height */

__clientHeight: 0,

/** Outer width of content */

__contentWidth: 0,

/** Outer height of content */

__contentHeight: 0,

/** Snapping width for content */

__snapWidth: 100,

/** Snapping height for content */

__snapHeight: 100,

/** Height to assign to refresh area */

__refreshHeight: null,

/** Whether the refresh process is enabled when the event is released now */

__refreshActive: false,

/** Callback to execute on activation. This is for signalling the user about a refresh is about to happen when he release */

__refreshActivate: null,

/** Callback to execute on deactivation. This is for signalling the user about the refresh being cancelled */

__refreshDeactivate: null,

/** Callback to execute to start the actual refresh. Call {@link #refreshFinish} when done */

__refreshStart: null,

/** Zoom level */

__zoomLevel: 1,

/** Scroll position on x-axis */

__scrollLeft: 0,

/** Scroll position on y-axis */

__scrollTop: 0,

/** Maximum allowed scroll position on x-axis */

__maxScrollLeft: 0,

/** Maximum allowed scroll position on y-axis */

__maxScrollTop: 0,

/* Scheduled left position (final position when animating) */

__scheduledLeft: 0,

/* Scheduled top position (final position when animating) */

__scheduledTop: 0,

/* Scheduled zoom level (final scale when animating) */

__scheduledZoom: 0,

---------------------------------------------------------------------------

INTERNAL FIELDS :: LAST POSITIONS

---------------------------------------------------------------------------

/** Left position of finger at start */

__lastTouchLeft: null,

/** Top position of finger at start */

__lastTouchTop: null,

/** Timestamp of last move of finger. Used to limit tracking range for deceleration speed. */

__lastTouchMove: null,

/** List of positions, uses three indexes for each state: left, top, timestamp */

__positions: null,

---------------------------------------------------------------------------

INTERNAL FIELDS :: DECELERATION SUPPORT

---------------------------------------------------------------------------

/** Minimum left scroll position during deceleration */

__minDecelerationScrollLeft: null,

/** Minimum top scroll position during deceleration */

__minDecelerationScrollTop: null,

/** Maximum left scroll position during deceleration */

__maxDecelerationScrollLeft: null,

/** Maximum top scroll position during deceleration */

__maxDecelerationScrollTop: null,

/** Current factor to modify horizontal scroll position with on every step */

__decelerationVelocityX: null,

/** Current factor to modify vertical scroll position with on every step */

__decelerationVelocityY: null,

/** the browser-specific property to use for transforms */

__transformProperty: null,

__perspectiveProperty: null,

/** scrollbar indicators */

__indicatorX: null,

__indicatorY: null,

/** Timeout for scrollbar fading */

__scrollbarFadeTimeout: null,

/** whether we've tried to wait for size already */

__didWaitForSize: null,

__sizerTimeout: null,

__initEventHandlers: function() {

var self = this;

// Event Handler

var container = self.__container;

// save height when scroll view is shrunk so we don't need to reflow

var scrollViewOffsetHeight;

/**

* Shrink the scroll view when the keyboard is up if necessary and if the

* focused input is below the bottom of the shrunk scroll view, scroll it

* into view.

self.scrollChildIntoView = function(e) {

//console.log("scrollChildIntoView at: " + Date.now());

// D

var scrollBottomOffsetToTop = container.getBoundingClientRect().bottom;

// D - A

scrollViewOffsetHeight = container.offsetHeight;

var alreadyShrunk = self.isShrunkForKeyboard;

var isModal = container.parentNode.classList.contains('modal');

// 680px is when the media query for 60% modal width kicks in

var isInsetModal = isModal && window.innerWidth >= 680;

* _______

* |---A---| <- top of scroll view

* | |

* |---B---| <- keyboard

* | C | <- input

* |---D---| <- initial bottom of scroll view

* |___E___| <- bottom of viewport

* All commented calculations relative to the top of the viewport (ie E

* is the viewport height, not 0)

if (!alreadyShrunk) {

// shrink scrollview so we can actually scroll if the input is hidden

// if it isn't shrink so we can scroll to inputs under the keyboard

// inset modals won't shrink on Android on their own when the keyboard appears

if ( ionic.Platform.isIOS() || ionic.Platform.isFullScreen || isInsetModal ) {

// if there are things below the scroll view account for them and

// subtract them from the keyboard height when resizing

// E - D E D

var scrollBottomOffsetToBottom = e.detail.viewportHeight - scrollBottomOffsetToTop;

// 0 or D - B if D > B E - B E - D

var keyboardOffset = Math.max(0, e.detail.keyboardHeight - scrollBottomOffsetToBottom);

ionic.requestAnimationFrame(function(){

// D - A or B - A if D > B D - A max(0, D - B)

scrollViewOffsetHeight = scrollViewOffsetHeight - keyboardOffset;

container.style.height = scrollViewOffsetHeight + "px";

container.style.overflow = "visible";

//update scroll view

self.resize();

});

}

self.isShrunkForKeyboard = true;

}

* _______

* |---A---| <- top of scroll view

* | * | <- where we want to scroll to

* |--B-D--| <- keyboard, bottom of scroll view

* | C | <- input

* | |

* |___E___| <- bottom of viewport

* All commented calculations relative to the top of the viewport (ie E

* is the viewport height, not 0)

// if the element is positioned under the keyboard scroll it into view

if (e.detail.isElementUnderKeyboard) {

ionic.requestAnimationFrame(function(){

container.scrollTop = 0;

// update D if we shrunk

if (self.isShrunkForKeyboard && !alreadyShrunk) {

scrollBottomOffsetToTop = container.getBoundingClientRect().bottom;

}

// middle of the scrollview, this is where we want to scroll to

// (D - A) / 2

var scrollMidpointOffset = scrollViewOffsetHeight * 0.5;

//console.log("container.offsetHeight: " + scrollViewOffsetHeight);

// middle of the input we want to scroll into view

// C

var inputMidpoint = ((e.detail.elementBottom + e.detail.elementTop) / 2);

// distance from middle of input to the bottom of the scroll view

// C - D C D

var inputMidpointOffsetToScrollBottom = inputMidpoint - scrollBottomOffsetToTop;

//C - D + (D - A)/2 C - D (D - A)/ 2

var scrollTop = inputMidpointOffsetToScrollBottom + scrollMidpointOffset;

if ( scrollTop > 0) {

if (ionic.Platform.isIOS()) ionic.tap.cloneFocusedInput(container, self);

self.scrollBy(0, scrollTop, true);

self.onScroll();

}

});

}

// Only the first scrollView parent of the element that broadcasted this event

// (the active element that needs to be shown) should receive this event

e.stopPropagation();

};

self.resetScrollView = function() {

//return scrollview to original height once keyboard has hidden

if ( self.isShrunkForKeyboard ) {

self.isShrunkForKeyboard = false;

container.style.height = "";

container.style.overflow = "";

}

self.resize();

};

//Broadcasted when keyboard is shown on some platforms.

//See js/utils/keyboard.js

container.addEventListener('scrollChildIntoView', self.scrollChildIntoView);

// Listen on document because container may not have had the last

// keyboardActiveElement, for example after closing a modal with a focused

// input and returning to a previously resized scroll view in an ion-content.

// Since we can only resize scroll views that are currently visible, just resize

// the current scroll view when the keyboard is closed.

document.addEventListener('resetScrollView', self.resetScrollView);

function getEventTouches(e) {

return e.touches && e.touches.length ? e.touches : [{

pageX: e.pageX,

pageY: e.pageY

}];

}

self.touchStart = function(e) {

self.startCoordinates = ionic.tap.pointerCoord(e);

if ( ionic.tap.ignoreScrollStart(e) ) {

return;

}

self.__isDown = true;

if ( ionic.tap.containsOrIsTextInput(e.target) || e.target.tagName === 'SELECT' ) {

// do not start if the target is a text input

// if there is a touchmove on this input, then we can start the scroll

self.__hasStarted = false;

return;

}

self.__isSelectable = true;

self.__enableScrollY = true;

self.__hasStarted = true;

self.doTouchStart(getEventTouches(e), e.timeStamp);

e.preventDefault();

};

self.touchMove = function(e) {

if (self.options.freeze || !self.__isDown ||

(!self.__isDown && e.defaultPrevented) ||

(e.target.tagName === 'TEXTAREA' && e.target.parentElement.querySelector(':focus')) ) {

return;

}

if ( !self.__hasStarted && ( ionic.tap.containsOrIsTextInput(e.target) || e.target.tagName === 'SELECT' ) ) {

// the target is a text input and scroll has started

// since the text input doesn't start on touchStart, do it here

self.__hasStarted = true;

self.doTouchStart(getEventTouches(e), e.timeStamp);

e.preventDefault();

return;

}

if (self.startCoordinates) {

// we have start coordinates, so get this touch move's current coordinates

var currentCoordinates = ionic.tap.pointerCoord(e);

if ( self.__isSelectable &&

ionic.tap.isTextInput(e.target) &&

Math.abs(self.startCoordinates.x - currentCoordinates.x) > 20 ) {

// user slid the text input's caret on its x axis, disable any future y scrolling

self.__enableScrollY = false;

self.__isSelectable = true;

}

if ( self.__enableScrollY && Math.abs(self.startCoordinates.y - currentCoordinates.y) > 10 ) {

// user scrolled the entire view on the y axis

// disabled being able to select text on an input

// hide the input which has focus, and show a cloned one that doesn't have focus

self.__isSelectable = false;

ionic.tap.cloneFocusedInput(container, self);

}

self.doTouchMove(getEventTouches(e), e.timeStamp, e.scale);

self.__isDown = true;

};

self.touchMoveBubble = function(e) {

if(self.__isDown && self.options.preventDefault) {

e.preventDefault();

}

};

self.touchEnd = function(e) {

if (!self.__isDown) return;

self.doTouchEnd(e, e.timeStamp);

self.__isDown = false;

self.__hasStarted = false;

self.__isSelectable = true;

self.__enableScrollY = true;

if ( !self.__isDragging && !self.__isDecelerating && !self.__isAnimating ) {

ionic.tap.removeClonedInputs(container, self);

}

};

self.mouseWheel = ionic.animationFrameThrottle(function(e) {

var scrollParent = ionic.DomUtil.getParentOrSelfWithClass(e.target, 'ionic-scroll');

if (!self.options.freeze && scrollParent === self.__container) {

self.hintResize();

self.scrollBy(

(e.wheelDeltaX || e.deltaX || 0) / self.options.wheelDampen,

(-e.wheelDeltaY || e.deltaY || 0) / self.options.wheelDampen

);

self.__fadeScrollbars('in');

clearTimeout(self.__wheelHideBarTimeout);

self.__wheelHideBarTimeout = setTimeout(function() {

self.__fadeScrollbars('out');

}, 100);

}

});

if ('ontouchstart' in window) {

// Touch Events

container.addEventListener("touchstart", self.touchStart, false);

if(self.options.preventDefault) container.addEventListener("touchmove", self.touchMoveBubble, false);

document.addEventListener("touchmove", self.touchMove, false);

document.addEventListener("touchend", self.touchEnd, false);

document.addEventListener("touchcancel", self.touchEnd, false);

document.addEventListener("wheel", self.mouseWheel, false);

} else if (window.navigator.pointerEnabled) {

// Pointer Events

container.addEventListener("pointerdown", self.touchStart, false);

if(self.options.preventDefault) container.addEventListener("pointermove", self.touchMoveBubble, false);

document.addEventListener("pointermove", self.touchMove, false);

document.addEventListener("pointerup", self.touchEnd, false);

document.addEventListener("pointercancel", self.touchEnd, false);

document.addEventListener("wheel", self.mouseWheel, false);

} else if (window.navigator.msPointerEnabled) {

// IE10, WP8 (Pointer Events)

container.addEventListener("MSPointerDown", self.touchStart, false);

if(self.options.preventDefault) container.addEventListener("MSPointerMove", self.touchMoveBubble, false);

document.addEventListener("MSPointerMove", self.touchMove, false);

document.addEventListener("MSPointerUp", self.touchEnd, false);

document.addEventListener("MSPointerCancel", self.touchEnd, false);

document.addEventListener("wheel", self.mouseWheel, false);

} else {

// Mouse Events

var mousedown = false;

self.mouseDown = function(e) {

if ( ionic.tap.ignoreScrollStart(e) || e.target.tagName === 'SELECT' ) {

return;

}

self.doTouchStart(getEventTouches(e), e.timeStamp);

if ( !ionic.tap.isTextInput(e.target) ) {

e.preventDefault();

}

mousedown = true;

};

self.mouseMove = function(e) {

if (self.options.freeze || !mousedown || (!mousedown && e.defaultPrevented)) {

return;

}

self.doTouchMove(getEventTouches(e), e.timeStamp);

mousedown = true;

};

self.mouseMoveBubble = function(e) {

if (mousedown && self.options.preventDefault) {

e.preventDefault();

}

};

self.mouseUp = function(e) {

if (!mousedown) {

return;

}

self.doTouchEnd(e, e.timeStamp);

mousedown = false;

};

container.addEventListener("mousedown", self.mouseDown, false);

if(self.options.preventDefault) container.addEventListener("mousemove", self.mouseMoveBubble, false);

document.addEventListener("mousemove", self.mouseMove, false);

document.addEventListener("mouseup", self.mouseUp, false);

document.addEventListener('mousewheel', self.mouseWheel, false);

document.addEventListener('wheel', self.mouseWheel, false);

}

__cleanup: function() {

var self = this;

var container = self.__container;

container.removeEventListener('touchstart', self.touchStart);

container.removeEventListener('touchmove', self.touchMoveBubble);

document.removeEventListener('touchmove', self.touchMove);

document.removeEventListener('touchend', self.touchEnd);

document.removeEventListener('touchcancel', self.touchEnd);

container.removeEventListener("pointerdown", self.touchStart);

container.removeEventListener("pointermove", self.touchMoveBubble);

document.removeEventListener("pointermove", self.touchMove);

document.removeEventListener("pointerup", self.touchEnd);

document.removeEventListener("pointercancel", self.touchEnd);

container.removeEventListener("MSPointerDown", self.touchStart);

container.removeEventListener("MSPointerMove", self.touchMoveBubble);

document.removeEventListener("MSPointerMove", self.touchMove);

document.removeEventListener("MSPointerUp", self.touchEnd);

document.removeEventListener("MSPointerCancel", self.touchEnd);

container.removeEventListener("mousedown", self.mouseDown);

container.removeEventListener("mousemove", self.mouseMoveBubble);

document.removeEventListener("mousemove", self.mouseMove);

document.removeEventListener("mouseup", self.mouseUp);

document.removeEventListener('mousewheel', self.mouseWheel);

document.removeEventListener('wheel', self.mouseWheel);

container.removeEventListener('scrollChildIntoView', self.scrollChildIntoView);

document.removeEventListener('resetScrollView', self.resetScrollView);

ionic.tap.removeClonedInputs(container, self);

delete self.__container;

delete self.__content;

delete self.__indicatorX;

delete self.__indicatorY;

delete self.options.el;

View remainder of file in raw view

ionic/js/views/scrollView.js at master · Java1024/ionic · GitHub

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