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/*!
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* iScroll v4.2.5 ~ Copyright (c) 2012 Matteo Spinelli, http://cubiq.org
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* Released under MIT license, http://cubiq.org/license
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*/
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(function(window, doc){
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var m = Math,
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dummyStyle = doc.createElement('div').style,
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vendor = (function () {
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var vendors = 't,webkitT,MozT,msT,OT'.split(','),
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t,
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i = 0,
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l = vendors.length;
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for ( ; i < l; i++ ) {
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t = vendors[i] + 'ransform';
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if ( t in dummyStyle ) {
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return vendors[i].substr(0, vendors[i].length - 1);
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}
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}
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return false;
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})(),
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cssVendor = vendor ? '-' + vendor.toLowerCase() + '-' : '',
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// Style properties
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transform = prefixStyle('transform'),
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transitionProperty = prefixStyle('transitionProperty'),
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transitionDuration = prefixStyle('transitionDuration'),
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transformOrigin = prefixStyle('transformOrigin'),
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transitionTimingFunction = prefixStyle('transitionTimingFunction'),
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transitionDelay = prefixStyle('transitionDelay'),
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// Browser capabilities
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isAndroid = (/android/gi).test(navigator.appVersion),
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isIDevice = (/iphone|ipad/gi).test(navigator.appVersion),
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isTouchPad = (/hp-tablet/gi).test(navigator.appVersion),
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has3d = prefixStyle('perspective') in dummyStyle,
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hasTouch = 'ontouchstart' in window && !isTouchPad,
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hasTransform = vendor !== false,
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hasTransitionEnd = prefixStyle('transition') in dummyStyle,
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RESIZE_EV = 'onorientationchange' in window ? 'orientationchange' : 'resize',
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START_EV = hasTouch ? 'touchstart' : 'mousedown',
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MOVE_EV = hasTouch ? 'touchmove' : 'mousemove',
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END_EV = hasTouch ? 'touchend' : 'mouseup',
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CANCEL_EV = hasTouch ? 'touchcancel' : 'mouseup',
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TRNEND_EV = (function () {
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if ( vendor === false ) return false;
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var transitionEnd = {
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'' : 'transitionend',
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'webkit' : 'webkitTransitionEnd',
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'Moz' : 'transitionend',
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'O' : 'otransitionend',
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'ms' : 'MSTransitionEnd'
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};
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return transitionEnd[vendor];
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})(),
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nextFrame = (function() {
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return window.requestAnimationFrame ||
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window.webkitRequestAnimationFrame ||
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window.mozRequestAnimationFrame ||
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window.oRequestAnimationFrame ||
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window.msRequestAnimationFrame ||
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function(callback) { return setTimeout(callback, 1); };
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})(),
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cancelFrame = (function () {
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return window.cancelRequestAnimationFrame ||
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window.webkitCancelAnimationFrame ||
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window.webkitCancelRequestAnimationFrame ||
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window.mozCancelRequestAnimationFrame ||
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window.oCancelRequestAnimationFrame ||
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window.msCancelRequestAnimationFrame ||
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clearTimeout;
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})(),
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// Helpers
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translateZ = has3d ? ' translateZ(0)' : '',
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// Constructor
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iScroll = function (el, options) {
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var that = this,
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i;
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that.wrapper = typeof el == 'object' ? el : doc.getElementById(el);
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that.wrapper.style.overflow = 'hidden';
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that.scroller = that.wrapper.children[0];
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// Default options
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that.options = {
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hScroll: true,
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vScroll: true,
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x: 0,
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y: 0,
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bounce: true,
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bounceLock: false,
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momentum: true,
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lockDirection: true,
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useTransform: true,
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useTransition: false,
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topOffset: 0,
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checkDOMChanges: false, // Experimental
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handleClick: true,
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// Scrollbar
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hScrollbar: true,
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vScrollbar: false,
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fixedScrollbar: isAndroid,
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hideScrollbar: isIDevice,
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fadeScrollbar: isIDevice && has3d,
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scrollbarClass: '',
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// Zoom
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zoom: false,
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zoomMin: 1,
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zoomMax: 4,
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doubleTapZoom: 2,
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wheelAction: 'scroll',
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// Snap
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snap: false,
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snapThreshold: 1,
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// Events
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onRefresh: null,
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onBeforeScrollStart: function (e) { e.preventDefault(); },
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onScrollStart: null,
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onBeforeScrollMove: null,
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onScrollMove: null,
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onBeforeScrollEnd: null,
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onScrollEnd: null,
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onTouchEnd: null,
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onDestroy: null,
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onZoomStart: null,
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onZoom: null,
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onZoomEnd: null
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};
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// User defined options
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for (i in options) that.options[i] = options[i];
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// Set starting position
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that.x = that.options.x;
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that.y = that.options.y;
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// Normalize options
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that.options.useTransform = hasTransform && that.options.useTransform;
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that.options.hScrollbar = that.options.hScroll && that.options.hScrollbar;
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that.options.vScrollbar = that.options.vScroll && that.options.vScrollbar;
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that.options.zoom = that.options.useTransform && that.options.zoom;
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that.options.useTransition = hasTransitionEnd && that.options.useTransition;
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// Helpers FIX ANDROID BUG!
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// translate3d and scale doesn't work together!
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// Ignoring 3d ONLY WHEN YOU SET that.options.zoom
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if ( that.options.zoom && isAndroid ){
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translateZ = '';
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}
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// Set some default styles
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that.scroller.style[transitionProperty] = that.options.useTransform ? cssVendor + 'transform' : 'top left';
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that.scroller.style[transitionDuration] = '0';
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that.scroller.style[transformOrigin] = '0 0';
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if (that.options.useTransition) that.scroller.style[transitionTimingFunction] = 'cubic-bezier(0.33,0.66,0.66,1)';
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if (that.options.useTransform) that.scroller.style[transform] = 'translate(' + that.x + 'px,' + that.y + 'px)' + translateZ;
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else that.scroller.style.cssText += ';position:absolute;top:' + that.y + 'px;left:' + that.x + 'px';
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if (that.options.useTransition) that.options.fixedScrollbar = true;
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that.refresh();
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that._bind(RESIZE_EV, window);
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that._bind(START_EV);
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if (!hasTouch) {
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if (that.options.wheelAction != 'none') {
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that._bind('DOMMouseScroll');
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that._bind('mousewheel');
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}
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}
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if (that.options.checkDOMChanges) that.checkDOMTime = setInterval(function () {
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that._checkDOMChanges();
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}, 500);
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};
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// Prototype
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iScroll.prototype = {
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enabled: true,
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x: 0,
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y: 0,
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steps: [],
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scale: 1,
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currPageX: 0, currPageY: 0,
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pagesX: [], pagesY: [],
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aniTime: null,
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wheelZoomCount: 0,
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handleEvent: function (e) {
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var that = this;
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switch(e.type) {
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case START_EV:
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if (!hasTouch && e.button !== 0) return;
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that._start(e);
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break;
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case MOVE_EV: that._move(e); break;
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case END_EV:
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case CANCEL_EV: that._end(e); break;
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case RESIZE_EV: that._resize(); break;
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case 'DOMMouseScroll': case 'mousewheel': that._wheel(e); break;
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case TRNEND_EV: that._transitionEnd(e); break;
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}
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},
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_checkDOMChanges: function () {
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if (this.moved || this.zoomed || this.animating ||
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(this.scrollerW == this.scroller.offsetWidth * this.scale && this.scrollerH == this.scroller.offsetHeight * this.scale)) return;
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this.refresh();
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},
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_scrollbar: function (dir) {
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var that = this,
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bar;
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if (!that[dir + 'Scrollbar']) {
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if (that[dir + 'ScrollbarWrapper']) {
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if (hasTransform) that[dir + 'ScrollbarIndicator'].style[transform] = '';
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that[dir + 'ScrollbarWrapper'].parentNode.removeChild(that[dir + 'ScrollbarWrapper']);
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that[dir + 'ScrollbarWrapper'] = null;
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that[dir + 'ScrollbarIndicator'] = null;
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}
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return;
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}
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if (!that[dir + 'ScrollbarWrapper']) {
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// Create the scrollbar wrapper
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bar = doc.createElement('div');
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if (that.options.scrollbarClass) bar.className = that.options.scrollbarClass + dir.toUpperCase();
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else bar.style.cssText = 'position:absolute;z-index:100;' + (dir == 'h' ? 'height:7px;bottom:1px;left:2px;right:' + (that.vScrollbar ? '7' : '2') + 'px' : 'width:7px;bottom:' + (that.hScrollbar ? '7' : '2') + 'px;top:2px;right:1px');
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bar.style.cssText += ';pointer-events:none;' + cssVendor + 'transition-property:opacity;' + cssVendor + 'transition-duration:' + (that.options.fadeScrollbar ? '350ms' : '0') + ';overflow:hidden;opacity:' + (that.options.hideScrollbar ? '0' : '1');
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that.wrapper.appendChild(bar);
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that[dir + 'ScrollbarWrapper'] = bar;
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// Create the scrollbar indicator
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bar = doc.createElement('div');
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if (!that.options.scrollbarClass) {
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bar.style.cssText = 'position:absolute;z-index:100;background:rgba(0,0,0,0.5);border:1px solid rgba(255,255,255,0.9);' + cssVendor + 'background-clip:padding-box;' + cssVendor + 'box-sizing:border-box;' + (dir == 'h' ? 'height:100%' : 'width:100%') + ';' + cssVendor + 'border-radius:3px;border-radius:3px';
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}
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bar.style.cssText += ';pointer-events:none;' + cssVendor + 'transition-property:' + cssVendor + 'transform;' + cssVendor + 'transition-timing-function:cubic-bezier(0.33,0.66,0.66,1);' + cssVendor + 'transition-duration:0;' + cssVendor + 'transform: translate(0,0)' + translateZ;
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if (that.options.useTransition) bar.style.cssText += ';' + cssVendor + 'transition-timing-function:cubic-bezier(0.33,0.66,0.66,1)';
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that[dir + 'ScrollbarWrapper'].appendChild(bar);
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that[dir + 'ScrollbarIndicator'] = bar;
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}
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if (dir == 'h') {
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that.hScrollbarSize = that.hScrollbarWrapper.clientWidth;
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that.hScrollbarIndicatorSize = m.max(m.round(that.hScrollbarSize * that.hScrollbarSize / that.scrollerW), 8);
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that.hScrollbarIndicator.style.width = that.hScrollbarIndicatorSize + 'px';
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that.hScrollbarMaxScroll = that.hScrollbarSize - that.hScrollbarIndicatorSize;
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that.hScrollbarProp = that.hScrollbarMaxScroll / that.maxScrollX;
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} else {
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that.vScrollbarSize = that.vScrollbarWrapper.clientHeight;
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that.vScrollbarIndicatorSize = m.max(m.round(that.vScrollbarSize * that.vScrollbarSize / that.scrollerH), 8);
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that.vScrollbarIndicator.style.height = that.vScrollbarIndicatorSize + 'px';
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that.vScrollbarMaxScroll = that.vScrollbarSize - that.vScrollbarIndicatorSize;
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that.vScrollbarProp = that.vScrollbarMaxScroll / that.maxScrollY;
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}
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// Reset position
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that._scrollbarPos(dir, true);
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},
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_resize: function () {
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var that = this;
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setTimeout(function () { that.refresh(); }, isAndroid ? 200 : 0);
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},
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_pos: function (x, y) {
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if (this.zoomed) return;
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x = this.hScroll ? x : 0;
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y = this.vScroll ? y : 0;
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if (this.options.useTransform) {
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this.scroller.style[transform] = 'translate(' + x + 'px,' + y + 'px) scale(' + this.scale + ')' + translateZ;
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} else {
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x = m.round(x);
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y = m.round(y);
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this.scroller.style.left = x + 'px';
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this.scroller.style.top = y + 'px';
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}
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this.x = x;
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this.y = y;
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this._scrollbarPos('h');
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this._scrollbarPos('v');
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},
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_scrollbarPos: function (dir, hidden) {
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var that = this,
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pos = dir == 'h' ? that.x : that.y,
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size;
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|
314
|
if (!that[dir + 'Scrollbar']) return;
|
|
|
315
|
|
|
|
316
|
pos = that[dir + 'ScrollbarProp'] * pos;
|
|
|
317
|
|
|
|
318
|
if (pos < 0) {
|
|
|
319
|
if (!that.options.fixedScrollbar) {
|
|
|
320
|
size = that[dir + 'ScrollbarIndicatorSize'] + m.round(pos * 3);
|
|
|
321
|
if (size < 8) size = 8;
|
|
|
322
|
that[dir + 'ScrollbarIndicator'].style[dir == 'h' ? 'width' : 'height'] = size + 'px';
|
|
|
323
|
}
|
|
|
324
|
pos = 0;
|
|
|
325
|
} else if (pos > that[dir + 'ScrollbarMaxScroll']) {
|
|
|
326
|
if (!that.options.fixedScrollbar) {
|
|
|
327
|
size = that[dir + 'ScrollbarIndicatorSize'] - m.round((pos - that[dir + 'ScrollbarMaxScroll']) * 3);
|
|
|
328
|
if (size < 8) size = 8;
|
|
|
329
|
that[dir + 'ScrollbarIndicator'].style[dir == 'h' ? 'width' : 'height'] = size + 'px';
|
|
|
330
|
pos = that[dir + 'ScrollbarMaxScroll'] + (that[dir + 'ScrollbarIndicatorSize'] - size);
|
|
|
331
|
} else {
|
|
|
332
|
pos = that[dir + 'ScrollbarMaxScroll'];
|
|
|
333
|
}
|
|
|
334
|
}
|
|
|
335
|
|
|
|
336
|
that[dir + 'ScrollbarWrapper'].style[transitionDelay] = '0';
|
|
|
337
|
that[dir + 'ScrollbarWrapper'].style.opacity = hidden && that.options.hideScrollbar ? '0' : '1';
|
|
|
338
|
that[dir + 'ScrollbarIndicator'].style[transform] = 'translate(' + (dir == 'h' ? pos + 'px,0)' : '0,' + pos + 'px)') + translateZ;
|
|
|
339
|
},
|
|
|
340
|
|
|
|
341
|
_start: function (e) {
|
|
|
342
|
var that = this,
|
|
|
343
|
point = hasTouch ? e.touches[0] : e,
|
|
|
344
|
matrix, x, y,
|
|
|
345
|
c1, c2;
|
|
|
346
|
|
|
|
347
|
if (!that.enabled) return;
|
|
|
348
|
|
|
|
349
|
if (that.options.onBeforeScrollStart) that.options.onBeforeScrollStart.call(that, e);
|
|
|
350
|
|
|
|
351
|
if (that.options.useTransition || that.options.zoom) that._transitionTime(0);
|
|
|
352
|
|
|
|
353
|
that.moved = false;
|
|
|
354
|
that.animating = false;
|
|
|
355
|
that.zoomed = false;
|
|
|
356
|
that.distX = 0;
|
|
|
357
|
that.distY = 0;
|
|
|
358
|
that.absDistX = 0;
|
|
|
359
|
that.absDistY = 0;
|
|
|
360
|
that.dirX = 0;
|
|
|
361
|
that.dirY = 0;
|
|
|
362
|
|
|
|
363
|
// Gesture start
|
|
|
364
|
if (that.options.zoom && hasTouch && e.touches.length > 1) {
|
|
|
365
|
c1 = m.abs(e.touches[0].pageX-e.touches[1].pageX);
|
|
|
366
|
c2 = m.abs(e.touches[0].pageY-e.touches[1].pageY);
|
|
|
367
|
that.touchesDistStart = m.sqrt(c1 * c1 + c2 * c2);
|
|
|
368
|
|
|
|
369
|
that.originX = m.abs(e.touches[0].pageX + e.touches[1].pageX - that.wrapperOffsetLeft * 2) / 2 - that.x;
|
|
|
370
|
that.originY = m.abs(e.touches[0].pageY + e.touches[1].pageY - that.wrapperOffsetTop * 2) / 2 - that.y;
|
|
|
371
|
|
|
|
372
|
if (that.options.onZoomStart) that.options.onZoomStart.call(that, e);
|
|
|
373
|
}
|
|
|
374
|
|
|
|
375
|
if (that.options.momentum) {
|
|
|
376
|
if (that.options.useTransform) {
|
|
|
377
|
// Very lame general purpose alternative to CSSMatrix
|
|
|
378
|
matrix = getComputedStyle(that.scroller, null)[transform].replace(/[^0-9\-.,]/g, '').split(',');
|
|
|
379
|
x = +(matrix[12] || matrix[4]);
|
|
|
380
|
y = +(matrix[13] || matrix[5]);
|
|
|
381
|
} else {
|
|
|
382
|
x = +getComputedStyle(that.scroller, null).left.replace(/[^0-9-]/g, '');
|
|
|
383
|
y = +getComputedStyle(that.scroller, null).top.replace(/[^0-9-]/g, '');
|
|
|
384
|
}
|
|
|
385
|
|
|
|
386
|
if (x != that.x || y != that.y) {
|
|
|
387
|
if (that.options.useTransition) that._unbind(TRNEND_EV);
|
|
|
388
|
else cancelFrame(that.aniTime);
|
|
|
389
|
that.steps = [];
|
|
|
390
|
that._pos(x, y);
|
|
|
391
|
if (that.options.onScrollEnd) that.options.onScrollEnd.call(that);
|
|
|
392
|
}
|
|
|
393
|
}
|
|
|
394
|
|
|
|
395
|
that.absStartX = that.x; // Needed by snap threshold
|
|
|
396
|
that.absStartY = that.y;
|
|
|
397
|
|
|
|
398
|
that.startX = that.x;
|
|
|
399
|
that.startY = that.y;
|
|
|
400
|
that.pointX = point.pageX;
|
|
|
401
|
that.pointY = point.pageY;
|
|
|
402
|
|
|
|
403
|
that.startTime = e.timeStamp || Date.now();
|
|
|
404
|
|
|
|
405
|
if (that.options.onScrollStart) that.options.onScrollStart.call(that, e);
|
|
|
406
|
|
|
|
407
|
that._bind(MOVE_EV, window);
|
|
|
408
|
that._bind(END_EV, window);
|
|
|
409
|
that._bind(CANCEL_EV, window);
|
|
|
410
|
},
|
|
|
411
|
|
|
|
412
|
_move: function (e) {
|
|
|
413
|
var that = this,
|
|
|
414
|
point = hasTouch ? e.touches[0] : e,
|
|
|
415
|
deltaX = point.pageX - that.pointX,
|
|
|
416
|
deltaY = point.pageY - that.pointY,
|
|
|
417
|
newX = that.x + deltaX,
|
|
|
418
|
newY = that.y + deltaY,
|
|
|
419
|
c1, c2, scale,
|
|
|
420
|
timestamp = e.timeStamp || Date.now();
|
|
|
421
|
|
|
|
422
|
if (that.options.onBeforeScrollMove) that.options.onBeforeScrollMove.call(that, e);
|
|
|
423
|
|
|
|
424
|
// Zoom
|
|
|
425
|
if (that.options.zoom && hasTouch && e.touches.length > 1) {
|
|
|
426
|
c1 = m.abs(e.touches[0].pageX - e.touches[1].pageX);
|
|
|
427
|
c2 = m.abs(e.touches[0].pageY - e.touches[1].pageY);
|
|
|
428
|
that.touchesDist = m.sqrt(c1*c1+c2*c2);
|
|
|
429
|
|
|
|
430
|
that.zoomed = true;
|
|
|
431
|
|
|
|
432
|
scale = 1 / that.touchesDistStart * that.touchesDist * this.scale;
|
|
|
433
|
|
|
|
434
|
if (scale < that.options.zoomMin) scale = 0.5 * that.options.zoomMin * Math.pow(2.0, scale / that.options.zoomMin);
|
|
|
435
|
else if (scale > that.options.zoomMax) scale = 2.0 * that.options.zoomMax * Math.pow(0.5, that.options.zoomMax / scale);
|
|
|
436
|
|
|
|
437
|
that.lastScale = scale / this.scale;
|
|
|
438
|
|
|
|
439
|
newX = this.originX - this.originX * that.lastScale + this.x;
|
|
|
440
|
newY = this.originY - this.originY * that.lastScale + this.y;
|
|
|
441
|
|
|
|
442
|
this.scroller.style[top] = newY + 'px';
|
|
|
443
|
|
|
|
444
|
if (that.options.onZoom) that.options.onZoom.call(that, e);
|
|
|
445
|
return;
|
|
|
446
|
}
|
|
|
447
|
|
|
|
448
|
that.pointX = point.pageX;
|
|
|
449
|
that.pointY = point.pageY;
|
|
|
450
|
|
|
|
451
|
// Slow down if outside of the boundaries
|
|
|
452
|
if (newX > 0 || newX < that.maxScrollX) {
|
|
|
453
|
newX = that.options.bounce ? that.x + (deltaX / 2) : newX >= 0 || that.maxScrollX >= 0 ? 0 : that.maxScrollX;
|
|
|
454
|
}
|
|
|
455
|
if (newY > that.minScrollY || newY < that.maxScrollY) {
|
|
|
456
|
newY = that.options.bounce ? that.y + (deltaY / 2) : newY >= that.minScrollY || that.maxScrollY >= 0 ? that.minScrollY : that.maxScrollY;
|
|
|
457
|
}
|
|
|
458
|
|
|
|
459
|
that.distX += deltaX;
|
|
|
460
|
that.distY += deltaY;
|
|
|
461
|
that.absDistX = m.abs(that.distX);
|
|
|
462
|
that.absDistY = m.abs(that.distY);
|
|
|
463
|
|
|
|
464
|
if (that.absDistX < 6 && that.absDistY < 6) {
|
|
|
465
|
return;
|
|
|
466
|
}
|
|
|
467
|
|
|
|
468
|
// Lock direction
|
|
|
469
|
if (that.options.lockDirection) {
|
|
|
470
|
if (that.absDistX > that.absDistY + 5) {
|
|
|
471
|
newY = that.y;
|
|
|
472
|
deltaY = 0;
|
|
|
473
|
} else if (that.absDistY > that.absDistX + 5) {
|
|
|
474
|
newX = that.x;
|
|
|
475
|
deltaX = 0;
|
|
|
476
|
}
|
|
|
477
|
}
|
|
|
478
|
|
|
|
479
|
that.moved = true;
|
|
|
480
|
that._pos(newX, newY);
|
|
|
481
|
that.dirX = deltaX > 0 ? -1 : deltaX < 0 ? 1 : 0;
|
|
|
482
|
that.dirY = deltaY > 0 ? -1 : deltaY < 0 ? 1 : 0;
|
|
|
483
|
|
|
|
484
|
if (timestamp - that.startTime > 300) {
|
|
|
485
|
that.startTime = timestamp;
|
|
|
486
|
that.startX = that.x;
|
|
|
487
|
that.startY = that.y;
|
|
|
488
|
}
|
|
|
489
|
|
|
|
490
|
if (that.options.onScrollMove) that.options.onScrollMove.call(that, e);
|
|
|
491
|
},
|
|
|
492
|
|
|
|
493
|
_end: function (e) {
|
|
|
494
|
if (hasTouch && e.touches.length !== 0) return;
|
|
|
495
|
|
|
|
496
|
var that = this,
|
|
|
497
|
point = hasTouch ? e.changedTouches[0] : e,
|
|
|
498
|
target, ev,
|
|
|
499
|
momentumX = { dist:0, time:0 },
|
|
|
500
|
momentumY = { dist:0, time:0 },
|
|
|
501
|
duration = (e.timeStamp || Date.now()) - that.startTime,
|
|
|
502
|
newPosX = that.x,
|
|
|
503
|
newPosY = that.y,
|
|
|
504
|
distX, distY,
|
|
|
505
|
newDuration,
|
|
|
506
|
snap,
|
|
|
507
|
scale;
|
|
|
508
|
|
|
|
509
|
that._unbind(MOVE_EV, window);
|
|
|
510
|
that._unbind(END_EV, window);
|
|
|
511
|
that._unbind(CANCEL_EV, window);
|
|
|
512
|
|
|
|
513
|
if (that.options.onBeforeScrollEnd) that.options.onBeforeScrollEnd.call(that, e);
|
|
|
514
|
|
|
|
515
|
if (that.zoomed) {
|
|
|
516
|
scale = that.scale * that.lastScale;
|
|
|
517
|
scale = Math.max(that.options.zoomMin, scale);
|
|
|
518
|
scale = Math.min(that.options.zoomMax, scale);
|
|
|
519
|
that.lastScale = scale / that.scale;
|
|
|
520
|
that.scale = scale;
|
|
|
521
|
|
|
|
522
|
that.x = that.originX - that.originX * that.lastScale + that.x;
|
|
|
523
|
that.y = that.originY - that.originY * that.lastScale + that.y;
|
|
|
524
|
|
|
|
525
|
that.scroller.style[transitionDuration] = '200ms';
|
|
|
526
|
that.scroller.style[transform] = 'translate(' + that.x + 'px,' + that.y + 'px) scale(' + that.scale + ')' + translateZ;
|
|
|
527
|
|
|
|
528
|
that.zoomed = false;
|
|
|
529
|
that.refresh();
|
|
|
530
|
|
|
|
531
|
if (that.options.onZoomEnd) that.options.onZoomEnd.call(that, e);
|
|
|
532
|
return;
|
|
|
533
|
}
|
|
|
534
|
|
|
|
535
|
if (!that.moved) {
|
|
|
536
|
if (hasTouch) {
|
|
|
537
|
if (that.doubleTapTimer && that.options.zoom) {
|
|
|
538
|
// Double tapped
|
|
|
539
|
clearTimeout(that.doubleTapTimer);
|
|
|
540
|
that.doubleTapTimer = null;
|
|
|
541
|
if (that.options.onZoomStart) that.options.onZoomStart.call(that, e);
|
|
|
542
|
that.zoom(that.pointX, that.pointY, that.scale == 1 ? that.options.doubleTapZoom : 1);
|
|
|
543
|
if (that.options.onZoomEnd) {
|
|
|
544
|
setTimeout(function() {
|
|
|
545
|
that.options.onZoomEnd.call(that, e);
|
|
|
546
|
}, 200); // 200 is default zoom duration
|
|
|
547
|
}
|
|
|
548
|
} else if (this.options.handleClick) {
|
|
|
549
|
that.doubleTapTimer = setTimeout(function () {
|
|
|
550
|
that.doubleTapTimer = null;
|
|
|
551
|
|
|
|
552
|
// Find the last touched element
|
|
|
553
|
target = point.target;
|
|
|
554
|
while (target.nodeType != 1) target = target.parentNode;
|
|
|
555
|
|
|
|
556
|
if (target.tagName != 'SELECT' && target.tagName != 'INPUT' && target.tagName != 'TEXTAREA') {
|
|
|
557
|
ev = doc.createEvent('MouseEvents');
|
|
|
558
|
ev.initMouseEvent('click', true, true, e.view, 1,
|
|
|
559
|
point.screenX, point.screenY, point.clientX, point.clientY,
|
|
|
560
|
e.ctrlKey, e.altKey, e.shiftKey, e.metaKey,
|
|
|
561
|
0, null);
|
|
|
562
|
ev._fake = true;
|
|
|
563
|
target.dispatchEvent(ev);
|
|
|
564
|
}
|
|
|
565
|
}, that.options.zoom ? 250 : 0);
|
|
|
566
|
}
|
|
|
567
|
}
|
|
|
568
|
|
|
|
569
|
that._resetPos(400);
|
|
|
570
|
|
|
|
571
|
if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e);
|
|
|
572
|
return;
|
|
|
573
|
}
|
|
|
574
|
|
|
|
575
|
if (duration < 300 && that.options.momentum) {
|
|
|
576
|
momentumX = newPosX ? that._momentum(newPosX - that.startX, duration, -that.x, that.scrollerW - that.wrapperW + that.x, that.options.bounce ? that.wrapperW : 0) : momentumX;
|
|
|
577
|
momentumY = newPosY ? that._momentum(newPosY - that.startY, duration, -that.y, (that.maxScrollY < 0 ? that.scrollerH - that.wrapperH + that.y - that.minScrollY : 0), that.options.bounce ? that.wrapperH : 0) : momentumY;
|
|
|
578
|
|
|
|
579
|
newPosX = that.x + momentumX.dist;
|
|
|
580
|
newPosY = that.y + momentumY.dist;
|
|
|
581
|
|
|
|
582
|
if ((that.x > 0 && newPosX > 0) || (that.x < that.maxScrollX && newPosX < that.maxScrollX)) momentumX = { dist:0, time:0 };
|
|
|
583
|
if ((that.y > that.minScrollY && newPosY > that.minScrollY) || (that.y < that.maxScrollY && newPosY < that.maxScrollY)) momentumY = { dist:0, time:0 };
|
|
|
584
|
}
|
|
|
585
|
|
|
|
586
|
if (momentumX.dist || momentumY.dist) {
|
|
|
587
|
newDuration = m.max(m.max(momentumX.time, momentumY.time), 10);
|
|
|
588
|
|
|
|
589
|
// Do we need to snap?
|
|
|
590
|
if (that.options.snap) {
|
|
|
591
|
distX = newPosX - that.absStartX;
|
|
|
592
|
distY = newPosY - that.absStartY;
|
|
|
593
|
if (m.abs(distX) < that.options.snapThreshold && m.abs(distY) < that.options.snapThreshold) { that.scrollTo(that.absStartX, that.absStartY, 200); }
|
|
|
594
|
else {
|
|
|
595
|
snap = that._snap(newPosX, newPosY);
|
|
|
596
|
newPosX = snap.x;
|
|
|
597
|
newPosY = snap.y;
|
|
|
598
|
newDuration = m.max(snap.time, newDuration);
|
|
|
599
|
}
|
|
|
600
|
}
|
|
|
601
|
|
|
|
602
|
that.scrollTo(m.round(newPosX), m.round(newPosY), newDuration);
|
|
|
603
|
|
|
|
604
|
if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e);
|
|
|
605
|
return;
|
|
|
606
|
}
|
|
|
607
|
|
|
|
608
|
// Do we need to snap?
|
|
|
609
|
if (that.options.snap) {
|
|
|
610
|
distX = newPosX - that.absStartX;
|
|
|
611
|
distY = newPosY - that.absStartY;
|
|
|
612
|
if (m.abs(distX) < that.options.snapThreshold && m.abs(distY) < that.options.snapThreshold) that.scrollTo(that.absStartX, that.absStartY, 200);
|
|
|
613
|
else {
|
|
|
614
|
snap = that._snap(that.x, that.y);
|
|
|
615
|
if (snap.x != that.x || snap.y != that.y) that.scrollTo(snap.x, snap.y, snap.time);
|
|
|
616
|
}
|
|
|
617
|
|
|
|
618
|
if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e);
|
|
|
619
|
return;
|
|
|
620
|
}
|
|
|
621
|
|
|
|
622
|
that._resetPos(200);
|
|
|
623
|
if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e);
|
|
|
624
|
},
|
|
|
625
|
|
|
|
626
|
_resetPos: function (time) {
|
|
|
627
|
var that = this,
|
|
|
628
|
resetX = that.x >= 0 ? 0 : that.x < that.maxScrollX ? that.maxScrollX : that.x,
|
|
|
629
|
resetY = that.y >= that.minScrollY || that.maxScrollY > 0 ? that.minScrollY : that.y < that.maxScrollY ? that.maxScrollY : that.y;
|
|
|
630
|
|
|
|
631
|
if (resetX == that.x && resetY == that.y) {
|
|
|
632
|
if (that.moved) {
|
|
|
633
|
that.moved = false;
|
|
|
634
|
if (that.options.onScrollEnd) that.options.onScrollEnd.call(that); // Execute custom code on scroll end
|
|
|
635
|
}
|
|
|
636
|
|
|
|
637
|
if (that.hScrollbar && that.options.hideScrollbar) {
|
|
|
638
|
if (vendor == 'webkit') that.hScrollbarWrapper.style[transitionDelay] = '300ms';
|
|
|
639
|
that.hScrollbarWrapper.style.opacity = '0';
|
|
|
640
|
}
|
|
|
641
|
if (that.vScrollbar && that.options.hideScrollbar) {
|
|
|
642
|
if (vendor == 'webkit') that.vScrollbarWrapper.style[transitionDelay] = '300ms';
|
|
|
643
|
that.vScrollbarWrapper.style.opacity = '0';
|
|
|
644
|
}
|
|
|
645
|
|
|
|
646
|
return;
|
|
|
647
|
}
|
|
|
648
|
|
|
|
649
|
that.scrollTo(resetX, resetY, time || 0);
|
|
|
650
|
},
|
|
|
651
|
|
|
|
652
|
_wheel: function (e) {
|
|
|
653
|
var that = this,
|
|
|
654
|
wheelDeltaX, wheelDeltaY,
|
|
|
655
|
deltaX, deltaY,
|
|
|
656
|
deltaScale;
|
|
|
657
|
|
|
|
658
|
if ('wheelDeltaX' in e) {
|
|
|
659
|
wheelDeltaX = e.wheelDeltaX / 12;
|
|
|
660
|
wheelDeltaY = e.wheelDeltaY / 12;
|
|
|
661
|
} else if('wheelDelta' in e) {
|
|
|
662
|
wheelDeltaX = wheelDeltaY = e.wheelDelta / 12;
|
|
|
663
|
} else if ('detail' in e) {
|
|
|
664
|
wheelDeltaX = wheelDeltaY = -e.detail * 3;
|
|
|
665
|
} else {
|
|
|
666
|
return;
|
|
|
667
|
}
|
|
|
668
|
|
|
|
669
|
if (that.options.wheelAction == 'zoom') {
|
|
|
670
|
deltaScale = that.scale * Math.pow(2, 1/3 * (wheelDeltaY ? wheelDeltaY / Math.abs(wheelDeltaY) : 0));
|
|
|
671
|
if (deltaScale < that.options.zoomMin) deltaScale = that.options.zoomMin;
|
|
|
672
|
if (deltaScale > that.options.zoomMax) deltaScale = that.options.zoomMax;
|
|
|
673
|
|
|
|
674
|
if (deltaScale != that.scale) {
|
|
|
675
|
if (!that.wheelZoomCount && that.options.onZoomStart) that.options.onZoomStart.call(that, e);
|
|
|
676
|
that.wheelZoomCount++;
|
|
|
677
|
|
|
|
678
|
that.zoom(e.pageX, e.pageY, deltaScale, 400);
|
|
|
679
|
|
|
|
680
|
setTimeout(function() {
|
|
|
681
|
that.wheelZoomCount--;
|
|
|
682
|
if (!that.wheelZoomCount && that.options.onZoomEnd) that.options.onZoomEnd.call(that, e);
|
|
|
683
|
}, 400);
|
|
|
684
|
}
|
|
|
685
|
|
|
|
686
|
return;
|
|
|
687
|
}
|
|
|
688
|
|
|
|
689
|
deltaX = that.x + wheelDeltaX;
|
|
|
690
|
deltaY = that.y + wheelDeltaY;
|
|
|
691
|
|
|
|
692
|
if (deltaX > 0) deltaX = 0;
|
|
|
693
|
else if (deltaX < that.maxScrollX) deltaX = that.maxScrollX;
|
|
|
694
|
|
|
|
695
|
if (deltaY > that.minScrollY) deltaY = that.minScrollY;
|
|
|
696
|
else if (deltaY < that.maxScrollY) deltaY = that.maxScrollY;
|
|
|
697
|
|
|
|
698
|
if (that.maxScrollY < 0) {
|
|
|
699
|
that.scrollTo(deltaX, deltaY, 0);
|
|
|
700
|
}
|
|
|
701
|
},
|
|
|
702
|
|
|
|
703
|
_transitionEnd: function (e) {
|
|
|
704
|
var that = this;
|
|
|
705
|
|
|
|
706
|
if (e.target != that.scroller) return;
|
|
|
707
|
|
|
|
708
|
that._unbind(TRNEND_EV);
|
|
|
709
|
|
|
|
710
|
that._startAni();
|
|
|
711
|
},
|
|
|
712
|
|
|
|
713
|
|
|
|
714
|
/**
|
|
|
715
|
*
|
|
|
716
|
* Utilities
|
|
|
717
|
*
|
|
|
718
|
*/
|
|
|
719
|
_startAni: function () {
|
|
|
720
|
var that = this,
|
|
|
721
|
startX = that.x, startY = that.y,
|
|
|
722
|
startTime = Date.now(),
|
|
|
723
|
step, easeOut,
|
|
|
724
|
animate;
|
|
|
725
|
|
|
|
726
|
if (that.animating) return;
|
|
|
727
|
|
|
|
728
|
if (!that.steps.length) {
|
|
|
729
|
that._resetPos(400);
|
|
|
730
|
return;
|
|
|
731
|
}
|
|
|
732
|
|
|
|
733
|
step = that.steps.shift();
|
|
|
734
|
|
|
|
735
|
if (step.x == startX && step.y == startY) step.time = 0;
|
|
|
736
|
|
|
|
737
|
that.animating = true;
|
|
|
738
|
that.moved = true;
|
|
|
739
|
|
|
|
740
|
if (that.options.useTransition) {
|
|
|
741
|
that._transitionTime(step.time);
|
|
|
742
|
that._pos(step.x, step.y);
|
|
|
743
|
that.animating = false;
|
|
|
744
|
if (step.time) that._bind(TRNEND_EV);
|
|
|
745
|
else that._resetPos(0);
|
|
|
746
|
return;
|
|
|
747
|
}
|
|
|
748
|
|
|
|
749
|
animate = function () {
|
|
|
750
|
var now = Date.now(),
|
|
|
751
|
newX, newY;
|
|
|
752
|
|
|
|
753
|
if (now >= startTime + step.time) {
|
|
|
754
|
that._pos(step.x, step.y);
|
|
|
755
|
that.animating = false;
|
|
|
756
|
if (that.options.onAnimationEnd) that.options.onAnimationEnd.call(that); // Execute custom code on animation end
|
|
|
757
|
that._startAni();
|
|
|
758
|
return;
|
|
|
759
|
}
|
|
|
760
|
|
|
|
761
|
now = (now - startTime) / step.time - 1;
|
|
|
762
|
easeOut = m.sqrt(1 - now * now);
|
|
|
763
|
newX = (step.x - startX) * easeOut + startX;
|
|
|
764
|
newY = (step.y - startY) * easeOut + startY;
|
|
|
765
|
that._pos(newX, newY);
|
|
|
766
|
if (that.animating) that.aniTime = nextFrame(animate);
|
|
|
767
|
};
|
|
|
768
|
|
|
|
769
|
animate();
|
|
|
770
|
},
|
|
|
771
|
|
|
|
772
|
_transitionTime: function (time) {
|
|
|
773
|
time += 'ms';
|
|
|
774
|
this.scroller.style[transitionDuration] = time;
|
|
|
775
|
if (this.hScrollbar) this.hScrollbarIndicator.style[transitionDuration] = time;
|
|
|
776
|
if (this.vScrollbar) this.vScrollbarIndicator.style[transitionDuration] = time;
|
|
|
777
|
},
|
|
|
778
|
|
|
|
779
|
_momentum: function (dist, time, maxDistUpper, maxDistLower, size) {
|
|
|
780
|
var deceleration = 0.0006,
|
|
|
781
|
speed = m.abs(dist) / time,
|
|
|
782
|
newDist = (speed * speed) / (2 * deceleration),
|
|
|
783
|
newTime = 0, outsideDist = 0;
|
|
|
784
|
|
|
|
785
|
// Proportinally reduce speed if we are outside of the boundaries
|
|
|
786
|
if (dist > 0 && newDist > maxDistUpper) {
|
|
|
787
|
outsideDist = size / (6 / (newDist / speed * deceleration));
|
|
|
788
|
maxDistUpper = maxDistUpper + outsideDist;
|
|
|
789
|
speed = speed * maxDistUpper / newDist;
|
|
|
790
|
newDist = maxDistUpper;
|
|
|
791
|
} else if (dist < 0 && newDist > maxDistLower) {
|
|
|
792
|
outsideDist = size / (6 / (newDist / speed * deceleration));
|
|
|
793
|
maxDistLower = maxDistLower + outsideDist;
|
|
|
794
|
speed = speed * maxDistLower / newDist;
|
|
|
795
|
newDist = maxDistLower;
|
|
|
796
|
}
|
|
|
797
|
|
|
|
798
|
newDist = newDist * (dist < 0 ? -1 : 1);
|
|
|
799
|
newTime = speed / deceleration;
|
|
|
800
|
|
|
|
801
|
return { dist: newDist, time: m.round(newTime) };
|
|
|
802
|
},
|
|
|
803
|
|
|
|
804
|
_offset: function (el) {
|
|
|
805
|
var left = -el.offsetLeft,
|
|
|
806
|
top = -el.offsetTop;
|
|
|
807
|
|
|
|
808
|
while (el = el.offsetParent) {
|
|
|
809
|
left -= el.offsetLeft;
|
|
|
810
|
top -= el.offsetTop;
|
|
|
811
|
}
|
|
|
812
|
|
|
|
813
|
if (el != this.wrapper) {
|
|
|
814
|
left *= this.scale;
|
|
|
815
|
top *= this.scale;
|
|
|
816
|
}
|
|
|
817
|
|
|
|
818
|
return { left: left, top: top };
|
|
|
819
|
},
|
|
|
820
|
|
|
|
821
|
_snap: function (x, y) {
|
|
|
822
|
var that = this,
|
|
|
823
|
i, l,
|
|
|
824
|
page, time,
|
|
|
825
|
sizeX, sizeY;
|
|
|
826
|
|
|
|
827
|
// Check page X
|
|
|
828
|
page = that.pagesX.length - 1;
|
|
|
829
|
for (i=0, l=that.pagesX.length; i<l; i++) {
|
|
|
830
|
if (x >= that.pagesX[i]) {
|
|
|
831
|
page = i;
|
|
|
832
|
break;
|
|
|
833
|
}
|
|
|
834
|
}
|
|
|
835
|
if (page == that.currPageX && page > 0 && that.dirX < 0) page--;
|
|
|
836
|
x = that.pagesX[page];
|
|
|
837
|
sizeX = m.abs(x - that.pagesX[that.currPageX]);
|
|
|
838
|
sizeX = sizeX ? m.abs(that.x - x) / sizeX * 500 : 0;
|
|
|
839
|
that.currPageX = page;
|
|
|
840
|
|
|
|
841
|
// Check page Y
|
|
|
842
|
page = that.pagesY.length-1;
|
|
|
843
|
for (i=0; i<page; i++) {
|
|
|
844
|
if (y >= that.pagesY[i]) {
|
|
|
845
|
page = i;
|
|
|
846
|
break;
|
|
|
847
|
}
|
|
|
848
|
}
|
|
|
849
|
if (page == that.currPageY && page > 0 && that.dirY < 0) page--;
|
|
|
850
|
y = that.pagesY[page];
|
|
|
851
|
sizeY = m.abs(y - that.pagesY[that.currPageY]);
|
|
|
852
|
sizeY = sizeY ? m.abs(that.y - y) / sizeY * 500 : 0;
|
|
|
853
|
that.currPageY = page;
|
|
|
854
|
|
|
|
855
|
// Snap with constant speed (proportional duration)
|
|
|
856
|
time = m.round(m.max(sizeX, sizeY)) || 200;
|
|
|
857
|
|
|
|
858
|
return { x: x, y: y, time: time };
|
|
|
859
|
},
|
|
|
860
|
|
|
|
861
|
_bind: function (type, el, bubble) {
|
|
|
862
|
(el || this.scroller).addEventListener(type, this, !!bubble);
|
|
|
863
|
},
|
|
|
864
|
|
|
|
865
|
_unbind: function (type, el, bubble) {
|
|
|
866
|
(el || this.scroller).removeEventListener(type, this, !!bubble);
|
|
|
867
|
},
|
|
|
868
|
|
|
|
869
|
|
|
|
870
|
/**
|
|
|
871
|
*
|
|
|
872
|
* Public methods
|
|
|
873
|
*
|
|
|
874
|
*/
|
|
|
875
|
destroy: function () {
|
|
|
876
|
var that = this;
|
|
|
877
|
that.scroller.style[transform] = '';
|
|
|
878
|
|
|
|
879
|
// Remove the scrollbars
|
|
|
880
|
that.hScrollbar = false;
|
|
|
881
|
that.vScrollbar = false;
|
|
|
882
|
that._scrollbar('h');
|
|
|
883
|
that._scrollbar('v');
|
|
|
884
|
|
|
|
885
|
// Remove the event listeners
|
|
|
886
|
that._unbind(RESIZE_EV, window);
|
|
|
887
|
that._unbind(START_EV);
|
|
|
888
|
that._unbind(MOVE_EV, window);
|
|
|
889
|
that._unbind(END_EV, window);
|
|
|
890
|
that._unbind(CANCEL_EV, window);
|
|
|
891
|
|
|
|
892
|
if (!that.options.hasTouch) {
|
|
|
893
|
that._unbind('DOMMouseScroll');
|
|
|
894
|
that._unbind('mousewheel');
|
|
|
895
|
}
|
|
|
896
|
|
|
|
897
|
if (that.options.useTransition) that._unbind(TRNEND_EV);
|
|
|
898
|
|
|
|
899
|
if (that.options.checkDOMChanges) clearInterval(that.checkDOMTime);
|
|
|
900
|
|
|
|
901
|
if (that.options.onDestroy) that.options.onDestroy.call(that);
|
|
|
902
|
},
|
|
|
903
|
|
|
|
904
|
refresh: function () {
|
|
|
905
|
var that = this,
|
|
|
906
|
offset,
|
|
|
907
|
i, l,
|
|
|
908
|
els,
|
|
|
909
|
pos = 0,
|
|
|
910
|
page = 0;
|
|
|
911
|
|
|
|
912
|
if (that.scale < that.options.zoomMin) that.scale = that.options.zoomMin;
|
|
|
913
|
that.wrapperW = that.wrapper.clientWidth || 1;
|
|
|
914
|
that.wrapperH = that.wrapper.clientHeight || 1;
|
|
|
915
|
|
|
|
916
|
that.minScrollY = -that.options.topOffset || 0;
|
|
|
917
|
that.scrollerW = m.round(that.scroller.offsetWidth * that.scale);
|
|
|
918
|
that.scrollerH = m.round((that.scroller.offsetHeight + that.minScrollY) * that.scale);
|
|
|
919
|
that.maxScrollX = that.wrapperW - that.scrollerW;
|
|
|
920
|
that.maxScrollY = that.wrapperH - that.scrollerH + that.minScrollY;
|
|
|
921
|
that.dirX = 0;
|
|
|
922
|
that.dirY = 0;
|
|
|
923
|
|
|
|
924
|
if (that.options.onRefresh) that.options.onRefresh.call(that);
|
|
|
925
|
|
|
|
926
|
that.hScroll = that.options.hScroll && that.maxScrollX < 0;
|
|
|
927
|
that.vScroll = that.options.vScroll && (!that.options.bounceLock && !that.hScroll || that.scrollerH > that.wrapperH);
|
|
|
928
|
|
|
|
929
|
that.hScrollbar = that.hScroll && that.options.hScrollbar;
|
|
|
930
|
that.vScrollbar = that.vScroll && that.options.vScrollbar && that.scrollerH > that.wrapperH;
|
|
|
931
|
|
|
|
932
|
offset = that._offset(that.wrapper);
|
|
|
933
|
that.wrapperOffsetLeft = -offset.left;
|
|
|
934
|
that.wrapperOffsetTop = -offset.top;
|
|
|
935
|
|
|
|
936
|
// Prepare snap
|
|
|
937
|
if (typeof that.options.snap == 'string') {
|
|
|
938
|
that.pagesX = [];
|
|
|
939
|
that.pagesY = [];
|
|
|
940
|
els = that.scroller.querySelectorAll(that.options.snap);
|
|
|
941
|
for (i=0, l=els.length; i<l; i++) {
|
|
|
942
|
pos = that._offset(els[i]);
|
|
|
943
|
pos.left += that.wrapperOffsetLeft;
|
|
|
944
|
pos.top += that.wrapperOffsetTop;
|
|
|
945
|
that.pagesX[i] = pos.left < that.maxScrollX ? that.maxScrollX : pos.left * that.scale;
|
|
|
946
|
that.pagesY[i] = pos.top < that.maxScrollY ? that.maxScrollY : pos.top * that.scale;
|
|
|
947
|
}
|
|
|
948
|
} else if (that.options.snap) {
|
|
|
949
|
that.pagesX = [];
|
|
|
950
|
while (pos >= that.maxScrollX) {
|
|
|
951
|
that.pagesX[page] = pos;
|
|
|
952
|
pos = pos - that.wrapperW;
|
|
|
953
|
page++;
|
|
|
954
|
}
|
|
|
955
|
if (that.maxScrollX%that.wrapperW) that.pagesX[that.pagesX.length] = that.maxScrollX - that.pagesX[that.pagesX.length-1] + that.pagesX[that.pagesX.length-1];
|
|
|
956
|
|
|
|
957
|
pos = 0;
|
|
|
958
|
page = 0;
|
|
|
959
|
that.pagesY = [];
|
|
|
960
|
while (pos >= that.maxScrollY) {
|
|
|
961
|
that.pagesY[page] = pos;
|
|
|
962
|
pos = pos - that.wrapperH;
|
|
|
963
|
page++;
|
|
|
964
|
}
|
|
|
965
|
if (that.maxScrollY%that.wrapperH) that.pagesY[that.pagesY.length] = that.maxScrollY - that.pagesY[that.pagesY.length-1] + that.pagesY[that.pagesY.length-1];
|
|
|
966
|
}
|
|
|
967
|
|
|
|
968
|
// Prepare the scrollbars
|
|
|
969
|
that._scrollbar('h');
|
|
|
970
|
that._scrollbar('v');
|
|
|
971
|
|
|
|
972
|
if (!that.zoomed) {
|
|
|
973
|
that.scroller.style[transitionDuration] = '0';
|
|
|
974
|
that._resetPos(400);
|
|
|
975
|
}
|
|
|
976
|
},
|
|
|
977
|
|
|
|
978
|
scrollTo: function (x, y, time, relative) {
|
|
|
979
|
var that = this,
|
|
|
980
|
step = x,
|
|
|
981
|
i, l;
|
|
|
982
|
|
|
|
983
|
that.stop();
|
|
|
984
|
|
|
|
985
|
if (!step.length) step = [{ x: x, y: y, time: time, relative: relative }];
|
|
|
986
|
|
|
|
987
|
for (i=0, l=step.length; i<l; i++) {
|
|
|
988
|
if (step[i].relative) { step[i].x = that.x - step[i].x; step[i].y = that.y - step[i].y; }
|
|
|
989
|
that.steps.push({ x: step[i].x, y: step[i].y, time: step[i].time || 0 });
|
|
|
990
|
}
|
|
|
991
|
|
|
|
992
|
that._startAni();
|
|
|
993
|
},
|
|
|
994
|
|
|
|
995
|
scrollToElement: function (el, time) {
|
|
|
996
|
var that = this, pos;
|
|
|
997
|
el = el.nodeType ? el : that.scroller.querySelector(el);
|
|
|
998
|
if (!el) return;
|
|
|
999
|
|
|
|
1000
|
pos = that._offset(el);
|
|
|
1001
|
pos.left += that.wrapperOffsetLeft;
|
|
|
1002
|
pos.top += that.wrapperOffsetTop;
|
|
|
1003
|
|
|
|
1004
|
pos.left = pos.left > 0 ? 0 : pos.left < that.maxScrollX ? that.maxScrollX : pos.left;
|
|
|
1005
|
pos.top = pos.top > that.minScrollY ? that.minScrollY : pos.top < that.maxScrollY ? that.maxScrollY : pos.top;
|
|
|
1006
|
time = time === undefined ? m.max(m.abs(pos.left)*2, m.abs(pos.top)*2) : time;
|
|
|
1007
|
|
|
|
1008
|
that.scrollTo(pos.left, pos.top, time);
|
|
|
1009
|
},
|
|
|
1010
|
|
|
|
1011
|
scrollToPage: function (pageX, pageY, time) {
|
|
|
1012
|
var that = this, x, y;
|
|
|
1013
|
|
|
|
1014
|
time = time === undefined ? 400 : time;
|
|
|
1015
|
|
|
|
1016
|
if (that.options.onScrollStart) that.options.onScrollStart.call(that);
|
|
|
1017
|
|
|
|
1018
|
if (that.options.snap) {
|
|
|
1019
|
pageX = pageX == 'next' ? that.currPageX+1 : pageX == 'prev' ? that.currPageX-1 : pageX;
|
|
|
1020
|
pageY = pageY == 'next' ? that.currPageY+1 : pageY == 'prev' ? that.currPageY-1 : pageY;
|
|
|
1021
|
|
|
|
1022
|
pageX = pageX < 0 ? 0 : pageX > that.pagesX.length-1 ? that.pagesX.length-1 : pageX;
|
|
|
1023
|
pageY = pageY < 0 ? 0 : pageY > that.pagesY.length-1 ? that.pagesY.length-1 : pageY;
|
|
|
1024
|
|
|
|
1025
|
that.currPageX = pageX;
|
|
|
1026
|
that.currPageY = pageY;
|
|
|
1027
|
x = that.pagesX[pageX];
|
|
|
1028
|
y = that.pagesY[pageY];
|
|
|
1029
|
} else {
|
|
|
1030
|
x = -that.wrapperW * pageX;
|
|
|
1031
|
y = -that.wrapperH * pageY;
|
|
|
1032
|
if (x < that.maxScrollX) x = that.maxScrollX;
|
|
|
1033
|
if (y < that.maxScrollY) y = that.maxScrollY;
|
|
|
1034
|
}
|
|
|
1035
|
|
|
|
1036
|
that.scrollTo(x, y, time);
|
|
|
1037
|
},
|
|
|
1038
|
|
|
|
1039
|
disable: function () {
|
|
|
1040
|
this.stop();
|
|
|
1041
|
this._resetPos(0);
|
|
|
1042
|
this.enabled = false;
|
|
|
1043
|
|
|
|
1044
|
// If disabled after touchstart we make sure that there are no left over events
|
|
|
1045
|
this._unbind(MOVE_EV, window);
|
|
|
1046
|
this._unbind(END_EV, window);
|
|
|
1047
|
this._unbind(CANCEL_EV, window);
|
|
|
1048
|
},
|
|
|
1049
|
|
|
|
1050
|
enable: function () {
|
|
|
1051
|
this.enabled = true;
|
|
|
1052
|
},
|
|
|
1053
|
|
|
|
1054
|
stop: function () {
|
|
|
1055
|
if (this.options.useTransition) this._unbind(TRNEND_EV);
|
|
|
1056
|
else cancelFrame(this.aniTime);
|
|
|
1057
|
this.steps = [];
|
|
|
1058
|
this.moved = false;
|
|
|
1059
|
this.animating = false;
|
|
|
1060
|
},
|
|
|
1061
|
|
|
|
1062
|
zoom: function (x, y, scale, time) {
|
|
|
1063
|
var that = this,
|
|
|
1064
|
relScale = scale / that.scale;
|
|
|
1065
|
|
|
|
1066
|
if (!that.options.useTransform) return;
|
|
|
1067
|
|
|
|
1068
|
that.zoomed = true;
|
|
|
1069
|
time = time === undefined ? 200 : time;
|
|
|
1070
|
x = x - that.wrapperOffsetLeft - that.x;
|
|
|
1071
|
y = y - that.wrapperOffsetTop - that.y;
|
|
|
1072
|
that.x = x - x * relScale + that.x;
|
|
|
1073
|
that.y = y - y * relScale + that.y;
|
|
|
1074
|
|
|
|
1075
|
that.scale = scale;
|
|
|
1076
|
that.refresh();
|
|
|
1077
|
|
|
|
1078
|
that.x = that.x > 0 ? 0 : that.x < that.maxScrollX ? that.maxScrollX : that.x;
|
|
|
1079
|
that.y = that.y > that.minScrollY ? that.minScrollY : that.y < that.maxScrollY ? that.maxScrollY : that.y;
|
|
|
1080
|
|
|
|
1081
|
that.scroller.style[transitionDuration] = time + 'ms';
|
|
|
1082
|
that.scroller.style[transform] = 'translate(' + that.x + 'px,' + that.y + 'px) scale(' + scale + ')' + translateZ;
|
|
|
1083
|
that.zoomed = false;
|
|
|
1084
|
},
|
|
|
1085
|
|
|
|
1086
|
isReady: function () {
|
|
|
1087
|
return !this.moved && !this.zoomed && !this.animating;
|
|
|
1088
|
}
|
|
|
1089
|
};
|
|
|
1090
|
|
|
|
1091
|
function prefixStyle (style) {
|
|
|
1092
|
if ( vendor === '' ) return style;
|
|
|
1093
|
|
|
|
1094
|
style = style.charAt(0).toUpperCase() + style.substr(1);
|
|
|
1095
|
return vendor + style;
|
|
|
1096
|
}
|
|
|
1097
|
|
|
|
1098
|
dummyStyle = null; // for the sake of it
|
|
|
1099
|
|
|
|
1100
|
if (typeof exports !== 'undefined') exports.iScroll = iScroll;
|
|
|
1101
|
else window.iScroll = iScroll;
|
|
|
1102
|
|
|
|
1103
|
})(window, document);
|
