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scrollView.js
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/*
* Scroller
* http://github.com/zynga/scroller
*
* Copyright 2011, Zynga Inc.
* 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
* Copyright 2011, Deutsche Telekom AG
* 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
*
* Copyright 2011, Zynga Inc.
* 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
* Copyright 2011, Deutsche Telekom AG
* License: MIT + Apache (V2)
*/
(function(ionic) {
var NOOP = function(){};
// Easing Equations (c) 2003 Robert Penner, all rights reserved.
// 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);
} 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);
} 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);
}
// 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;
self.__callback = self.scrollChildIntoView = self.resetScrollView = NOOP;
self.mouseMove = self.mouseDown = self.mouseUp = self.mouseWheel =