asp.net+js+ajax实现手机移动端页面预览、剪裁、上传头像图片
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随时随地手机看文章
参考资料:支持移动设备触摸图片裁剪的jQuery插件
移动端html
测试html-->修 改取消确定
TestJavaScript.js
var _imgFile; function gestureImage() { var gesture = document.getElementById("gesture"); gesture.style.display = ""; var form1 = document.getElementById("form1"); form1.style.display = "none"; } function uploadFace() { $.ajax({ type: "post", url: "/CampusBattle/Handlers/AjaxHandler.ashx", data: { type: "SaveInformation", face: _imgFile }, dataType: "json", success: function (data) { alert(data); }, error: function (xmlHttpRequest, textStatus, errorThrown) { alert("加载失败:服务器错误。"); console.log(xmlHttpRequest.status); console.log(xmlHttpRequest.readyState); console.log(textStatus); console.log(errorThrown); } }); }
iscroll-zoom.js
/*! iScroll v5.1.3 ~ (c) 2008-2014 Matteo Spinelli ~ http://cubiq.org/license */ (function (window, document, Math) { var rAF = window.requestAnimationFrame || window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame || window.oRequestAnimationFrame || window.msRequestAnimationFrame || function (callback) { window.setTimeout(callback, 1000 / 60); }; var utils = (function () { var me = {}; var _elementStyle = document.createElement('div').style; var _vendor = (function () { var vendors = ['t', 'webkitT', 'MozT', 'msT', 'OT'], transform, i = 0, l = vendors.length; for ( ; i < l; i++ ) { transform = vendors[i] + 'ransform'; if ( transform in _elementStyle ) return vendors[i].substr(0, vendors[i].length-1); } return false; })(); function _prefixStyle (style) { if ( _vendor === false ) return false; if ( _vendor === '' ) return style; return _vendor + style.charAt(0).toUpperCase() + style.substr(1); } me.getTime = Date.now || function getTime () { return new Date().getTime(); }; me.extend = function (target, obj) { for ( var i in obj ) { target[i] = obj[i]; } }; me.addEvent = function (el, type, fn, capture) { el.addEventListener(type, fn, !!capture); }; me.removeEvent = function (el, type, fn, capture) { el.removeEventListener(type, fn, !!capture); }; me.prefixPointerEvent = function (pointerEvent) { return window.MSPointerEvent ? 'MSPointer' + pointerEvent.charAt(9).toUpperCase() + pointerEvent.substr(10): pointerEvent; }; me.momentum = function (current, start, time, lowerMargin, wrapperSize, deceleration) { var distance = current - start, speed = Math.abs(distance) / time, destination, duration; deceleration = deceleration === undefined ? 0.0006 : deceleration; destination = current + ( speed * speed ) / ( 2 * deceleration ) * ( distance < 0 ? -1 : 1 ); duration = speed / deceleration; if ( destination < lowerMargin ) { destination = wrapperSize ? lowerMargin - ( wrapperSize / 2.5 * ( speed / 8 ) ) : lowerMargin; distance = Math.abs(destination - current); duration = distance / speed; } else if ( destination > 0 ) { destination = wrapperSize ? wrapperSize / 2.5 * ( speed / 8 ) : 0; distance = Math.abs(current) + destination; duration = distance / speed; } return { destination: Math.round(destination), duration: duration }; }; var _transform = _prefixStyle('transform'); me.extend(me, { hasTransform: _transform !== false, hasPerspective: _prefixStyle('perspective') in _elementStyle, hasTouch: 'ontouchstart' in window, hasPointer: window.PointerEvent || window.MSPointerEvent, // IE10 is prefixed hasTransition: _prefixStyle('transition') in _elementStyle }); // This should find all Android browsers lower than build 535.19 (both stock browser and webview) me.isBadAndroid = /Android /.test(window.navigator.appVersion) && !(/Chrome/d/.test(window.navigator.appVersion)); me.extend(me.style = {}, { transform: _transform, transitionTimingFunction: _prefixStyle('transitionTimingFunction'), transitionDuration: _prefixStyle('transitionDuration'), transitionDelay: _prefixStyle('transitionDelay'), transformOrigin: _prefixStyle('transformOrigin') }); me.hasClass = function (e, c) { var re = new RegExp("(^|\s)" + c + "(\s|$)"); return re.test(e.className); }; me.addClass = function (e, c) { if ( me.hasClass(e, c) ) { return; } var newclass = e.className.split(' '); newclass.push(c); e.className = newclass.join(' '); }; me.removeClass = function (e, c) { if ( !me.hasClass(e, c) ) { return; } var re = new RegExp("(^|\s)" + c + "(\s|$)", 'g'); e.className = e.className.replace(re, ' '); }; me.offset = function (el) { var left = -el.offsetLeft, top = -el.offsetTop; // jshint -W084 while (el = el.offsetParent) { left -= el.offsetLeft; top -= el.offsetTop; } // jshint +W084 return { left: left, top: top }; }; me.preventDefaultException = function (el, exceptions) { for ( var i in exceptions ) { if ( exceptions[i].test(el[i]) ) { return true; } } return false; }; me.extend(me.eventType = {}, { touchstart: 1, touchmove: 1, touchend: 1, mousedown: 2, mousemove: 2, mouseup: 2, pointerdown: 3, pointermove: 3, pointerup: 3, MSPointerDown: 3, MSPointerMove: 3, MSPointerUp: 3 }); me.extend(me.ease = {}, { quadratic: { style: 'cubic-bezier(0.25, 0.46, 0.45, 0.94)', fn: function (k) { return k * ( 2 - k ); } }, circular: { style: 'cubic-bezier(0.1, 0.57, 0.1, 1)', // Not properly "circular" but this looks better, it should be (0.075, 0.82, 0.165, 1) fn: function (k) { return Math.sqrt( 1 - ( --k * k ) ); } }, back: { style: 'cubic-bezier(0.175, 0.885, 0.32, 1.275)', fn: function (k) { var b = 4; return ( k = k - 1 ) * k * ( ( b + 1 ) * k + b ) + 1; } }, bounce: { style: '', fn: function (k) { if ( ( k /= 1 ) < ( 1 / 2.75 ) ) { return 7.5625 * k * k; } else if ( k < ( 2 / 2.75 ) ) { return 7.5625 * ( k -= ( 1.5 / 2.75 ) ) * k + 0.75; } else if ( k < ( 2.5 / 2.75 ) ) { return 7.5625 * ( k -= ( 2.25 / 2.75 ) ) * k + 0.9375; } else { return 7.5625 * ( k -= ( 2.625 / 2.75 ) ) * k + 0.984375; } } }, elastic: { style: '', fn: function (k) { var f = 0.22, e = 0.4; if ( k === 0 ) { return 0; } if ( k == 1 ) { return 1; } return ( e * Math.pow( 2, - 10 * k ) * Math.sin( ( k - f / 4 ) * ( 2 * Math.PI ) / f ) + 1 ); } } }); me.tap = function (e, eventName) { var ev = document.createEvent('Event'); ev.initEvent(eventName, true, true); ev.pageX = e.pageX; ev.pageY = e.pageY; e.target.dispatchEvent(ev); }; me.click = function (e) { var target = e.target, ev; if ( !(/(SELECT|INPUT|TEXTAREA)/i).test(target.tagName) ) { ev = document.createEvent('MouseEvents'); ev.initMouseEvent('click', true, true, e.view, 1, target.screenX, target.screenY, target.clientX, target.clientY, e.ctrlKey, e.altKey, e.shiftKey, e.metaKey, 0, null); ev._constructed = true; target.dispatchEvent(ev); } }; return me; })(); function IScroll (el, options) { this.wrapper = typeof el == 'string' ? document.querySelector(el) : el; this.scroller = this.wrapper.children[0]; this.scrollerStyle = this.scroller.style; // cache style for better performance this.options = { zoomMin: 1, zoomMax: 4, zoomStart: 1, resizeScrollbars: true, mouseWheelSpeed: 20, snapThreshold: 0.334, // INSERT POINT: OPTIONS startX: 0, startY: 0, scrollY: true, directionLockThreshold: 5, momentum: true, bounce: true, bounceTime: 600, bounceEasing: '', preventDefault: true, preventDefaultException: { tagName: /^(INPUT|TEXTAREA|BUTTON|SELECT)$/ }, HWCompositing: true, useTransition: true, useTransform: true }; for ( var i in options ) { this.options[i] = options[i]; } // Normalize options this.translateZ = this.options.HWCompositing && utils.hasPerspective ? ' translateZ(0)' : ''; this.options.useTransition = utils.hasTransition && this.options.useTransition; this.options.useTransform = utils.hasTransform && this.options.useTransform; this.options.eventPassthrough = this.options.eventPassthrough === true ? 'vertical' : this.options.eventPassthrough; this.options.preventDefault = !this.options.eventPassthrough && this.options.preventDefault; // If you want eventPassthrough I have to lock one of the axes this.options.scrollY = this.options.eventPassthrough == 'vertical' ? false : this.options.scrollY; this.options.scrollX = this.options.eventPassthrough == 'horizontal' ? false : this.options.scrollX; // With eventPassthrough we also need lockDirection mechanism this.options.freeScroll = this.options.freeScroll && !this.options.eventPassthrough; this.options.directionLockThreshold = this.options.eventPassthrough ? 0 : this.options.directionLockThreshold; this.options.bounceEasing = typeof this.options.bounceEasing == 'string' ? utils.ease[this.options.bounceEasing] || utils.ease.circular : this.options.bounceEasing; this.options.resizePolling = this.options.resizePolling === undefined ? 60 : this.options.resizePolling; if ( this.options.tap === true ) { this.options.tap = 'tap'; } if ( this.options.shrinkScrollbars == 'scale' ) { this.options.useTransition = false; } this.options.invertWheelDirection = this.options.invertWheelDirection ? -1 : 1; // INSERT POINT: NORMALIZATION // Some defaults this.x = 0; this.y = 0; this.directionX = 0; this.directionY = 0; this._events = {}; this.scale = Math.min(Math.max(this.options.zoomStart, this.options.zoomMin), this.options.zoomMax); // INSERT POINT: DEFAULTS this._init(); this.refresh(); this.scrollTo(this.options.startX, this.options.startY); this.enable(); } IScroll.prototype = { version: '5.1.3', _init: function () { this._initEvents(); if ( this.options.zoom ) { this._initZoom(); } if ( this.options.scrollbars || this.options.indicators ) { this._initIndicators(); } if ( this.options.mouseWheel ) { this._initWheel(); } if ( this.options.snap ) { this._initSnap(); } if ( this.options.keyBindings ) { this._initKeys(); } // INSERT POINT: _init }, destroy: function () { this._initEvents(true); this._execEvent('destroy'); }, _transitionEnd: function (e) { if ( e.target != this.scroller || !this.isInTransition ) { return; } this._transitionTime(); if ( !this.resetPosition(this.options.bounceTime) ) { this.isInTransition = false; this._execEvent('scrollEnd'); } }, _start: function (e) { // React to left mouse button only if ( utils.eventType[e.type] != 1 ) { if ( e.button !== 0 ) { return; } } if ( !this.enabled || (this.initiated && utils.eventType[e.type] !== this.initiated) ) { return; } if ( this.options.preventDefault && !utils.isBadAndroid && !utils.preventDefaultException(e.target, this.options.preventDefaultException) ) { e.preventDefault(); } var point = e.touches ? e.touches[0] : e, pos; this.initiated = utils.eventType[e.type]; this.moved = false; this.distX = 0; this.distY = 0; this.directionX = 0; this.directionY = 0; this.directionLocked = 0; this._transitionTime(); this.startTime = utils.getTime(); if ( this.options.useTransition && this.isInTransition ) { this.isInTransition = false; pos = this.getComputedPosition(); this._translate(Math.round(pos.x), Math.round(pos.y)); this._execEvent('scrollEnd'); } else if ( !this.options.useTransition && this.isAnimating ) { this.isAnimating = false; this._execEvent('scrollEnd'); } this.startX = this.x; this.startY = this.y; this.absStartX = this.x; this.absStartY = this.y; this.pointX = point.pageX; this.pointY = point.pageY; this._execEvent('beforeScrollStart'); }, _move: function (e) { if ( !this.enabled || utils.eventType[e.type] !== this.initiated ) { return; } if ( this.options.preventDefault ) { // increases performance on Android? TODO: check! e.preventDefault(); } var point = e.touches ? e.touches[0] : e, deltaX = point.pageX - this.pointX, deltaY = point.pageY - this.pointY, timestamp = utils.getTime(), newX, newY, absDistX, absDistY; this.pointX = point.pageX; this.pointY = point.pageY; this.distX += deltaX; this.distY += deltaY; absDistX = Math.abs(this.distX); absDistY = Math.abs(this.distY); // We need to move at least 10 pixels for the scrolling to initiate if ( timestamp - this.endTime > 300 && (absDistX < 10 && absDistY < 10) ) { return; } // If you are scrolling in one direction lock the other if ( !this.directionLocked && !this.options.freeScroll ) { if ( absDistX > absDistY + this.options.directionLockThreshold ) { this.directionLocked = 'h'; // lock horizontally } else if ( absDistY >= absDistX + this.options.directionLockThreshold ) { this.directionLocked = 'v'; // lock vertically } else { this.directionLocked = 'n'; // no lock } } if ( this.directionLocked == 'h' ) { if ( this.options.eventPassthrough == 'vertical' ) { e.preventDefault(); } else if ( this.options.eventPassthrough == 'horizontal' ) { this.initiated = false; return; } deltaY = 0; } else if ( this.directionLocked == 'v' ) { if ( this.options.eventPassthrough == 'horizontal' ) { e.preventDefault(); } else if ( this.options.eventPassthrough == 'vertical' ) { this.initiated = false; return; } deltaX = 0; } deltaX = this.hasHorizontalScroll ? deltaX : 0; deltaY = this.hasVerticalScroll ? deltaY : 0; newX = this.x + deltaX; newY = this.y + deltaY; // Slow down if outside of the boundaries if ( newX > 0 || newX < this.maxScrollX ) { newX = this.options.bounce ? this.x + deltaX / 3 : newX > 0 ? 0 : this.maxScrollX; } if ( newY > 0 || newY < this.maxScrollY ) { newY = this.options.bounce ? this.y + deltaY / 3 : newY > 0 ? 0 : this.maxScrollY; } this.directionX = deltaX > 0 ? -1 : deltaX < 0 ? 1 : 0; this.directionY = deltaY > 0 ? -1 : deltaY < 0 ? 1 : 0; if ( !this.moved ) { this._execEvent('scrollStart'); } this.moved = true; this._translate(newX, newY); /* REPLACE START: _move */ if ( timestamp - this.startTime > 300 ) { this.startTime = timestamp; this.startX = this.x; this.startY = this.y; } /* REPLACE END: _move */ }, _end: function (e) { if ( !this.enabled || utils.eventType[e.type] !== this.initiated ) { return; } if ( this.options.preventDefault && !utils.preventDefaultException(e.target, this.options.preventDefaultException) ) { e.preventDefault(); } var point = e.changedTouches ? e.changedTouches[0] : e, momentumX, momentumY, duration = utils.getTime() - this.startTime, newX = Math.round(this.x), newY = Math.round(this.y), distanceX = Math.abs(newX - this.startX), distanceY = Math.abs(newY - this.startY), time = 0, easing = ''; this.isInTransition = 0; this.initiated = 0; this.endTime = utils.getTime(); // reset if we are outside of the boundaries if ( this.resetPosition(this.options.bounceTime) ) { return; } this.scrollTo(newX, newY); // ensures that the last position is rounded // we scrolled less than 10 pixels if ( !this.moved ) { if ( this.options.tap ) { utils.tap(e, this.options.tap); } if ( this.options.click ) { utils.click(e); } this._execEvent('scrollCancel'); return; } if ( this._events.flick && duration < 200 && distanceX < 100 && distanceY < 100 ) { this._execEvent('flick'); return; } // start momentum animation if needed if ( this.options.momentum && duration < 300 ) { momentumX = this.hasHorizontalScroll ? utils.momentum(this.x, this.startX, duration, this.maxScrollX, this.options.bounce ? this.wrapperWidth : 0, this.options.deceleration) : { destination: newX, duration: 0 }; momentumY = this.hasVerticalScroll ? utils.momentum(this.y, this.startY, duration, this.maxScrollY, this.options.bounce ? this.wrapperHeight : 0, this.options.deceleration) : { destination: newY, duration: 0 }; newX = momentumX.destination; newY = momentumY.destination; time = Math.max(momentumX.duration, momentumY.duration); this.isInTransition = 1; } if ( this.options.snap ) { var snap = this._nearestSnap(newX, newY); this.currentPage = snap; time = this.options.snapSpeed || Math.max( Math.max( Math.min(Math.abs(newX - snap.x), 1000), Math.min(Math.abs(newY - snap.y), 1000) ), 300); newX = snap.x; newY = snap.y; this.directionX = 0; this.directionY = 0; easing = this.options.bounceEasing; } // INSERT POINT: _end if ( newX != this.x || newY != this.y ) { // change easing function when scroller goes out of the boundaries if ( newX > 0 || newX < this.maxScrollX || newY > 0 || newY < this.maxScrollY ) { easing = utils.ease.quadratic; } this.scrollTo(newX, newY, time, easing); return; } this._execEvent('scrollEnd'); }, _resize: function () { var that = this; clearTimeout(this.resizeTimeout); this.resizeTimeout = setTimeout(function () { that.refresh(); }, this.options.resizePolling); }, resetPosition: function (time) { var x = this.x, y = this.y; time = time || 0; if ( !this.hasHorizontalScroll || this.x > 0 ) { x = 0; } else if ( this.x < this.maxScrollX ) { x = this.maxScrollX; } if ( !this.hasVerticalScroll || this.y > 0 ) { y = 0; } else if ( this.y < this.maxScrollY ) { y = this.maxScrollY; } if ( x == this.x && y == this.y ) { return false; } this.scrollTo(x, y, time, this.options.bounceEasing); return true; }, disable: function () { this.enabled = false; }, enable: function () { this.enabled = true; }, refresh: function () { var rf = this.wrapper.offsetHeight; // Force reflow this.wrapperWidth = this.wrapper.clientWidth; this.wrapperHeight = this.wrapper.clientHeight; /* REPLACE START: refresh */ this.scrollerWidth = Math.round(this.scroller.offsetWidth * this.scale); this.scrollerHeight = Math.round(this.scroller.offsetHeight * this.scale); this.maxScrollX = this.wrapperWidth - this.scrollerWidth; this.maxScrollY = this.wrapperHeight - this.scrollerHeight; /* REPLACE END: refresh */ this.hasHorizontalScroll = this.options.scrollX && this.maxScrollX < 0; this.hasVerticalScroll = this.options.scrollY && this.maxScrollY < 0; if ( !this.hasHorizontalScroll ) { this.maxScrollX = 0; this.scrollerWidth = this.wrapperWidth; } if ( !this.hasVerticalScroll ) { this.maxScrollY = 0; this.scrollerHeight = this.wrapperHeight; } this.endTime = 0; this.directionX = 0; this.directionY = 0; this.wrapperOffset = utils.offset(this.wrapper); this._execEvent('refresh'); this.resetPosition(this.options.bounceTime); // INSERT POINT: _refresh }, on: function (type, fn) { if ( !this._events[type] ) { this._events[type] = []; } this._events[type].push(fn); }, off: function (type, fn) { if ( !this._events[type] ) { return; } var index = this._events[type].indexOf(fn); if ( index > -1 ) { this._events[type].splice(index, 1); } }, _execEvent: function (type) { if ( !this._events[type] ) { return; } var i = 0, l = this._events[type].length; if ( !l ) { return; } for ( ; i < l; i++ ) { this._events[type][i].apply(this, [].slice.call(arguments, 1)); } }, scrollBy: function (x, y, time, easing) { x = this.x + x; y = this.y + y; time = time || 0; this.scrollTo(x, y, time, easing); }, scrollTo: function (x, y, time, easing) { easing = easing || utils.ease.circular; this.isInTransition = this.options.useTransition && time > 0; if ( !time || (this.options.useTransition && easing.style) ) { this._transitionTimingFunction(easing.style); this._transitionTime(time); this._translate(x, y); } else { this._animate(x, y, time, easing.fn); } }, scrollToElement: function (el, time, offsetX, offsetY, easing) { el = el.nodeType ? el : this.scroller.querySelector(el); if ( !el ) { return; } var pos = utils.offset(el); pos.left -= this.wrapperOffset.left; pos.top -= this.wrapperOffset.top; // if offsetX/Y are true we center the element to the screen if ( offsetX === true ) { offsetX = Math.round(el.offsetWidth / 2 - this.wrapper.offsetWidth / 2); } if ( offsetY === true ) { offsetY = Math.round(el.offsetHeight / 2 - this.wrapper.offsetHeight / 2); } pos.left -= offsetX || 0; pos.top -= offsetY || 0; pos.left = pos.left > 0 ? 0 : pos.left < this.maxScrollX ? this.maxScrollX : pos.left; pos.top = pos.top > 0 ? 0 : pos.top < this.maxScrollY ? this.maxScrollY : pos.top; time = time === undefined || time === null || time === 'auto' ? Math.max(Math.abs(this.x-pos.left), Math.abs(this.y-pos.top)) : time; this.scrollTo(pos.left, pos.top, time, easing); }, _transitionTime: function (time) { time = time || 0; this.scrollerStyle[utils.style.transitionDuration] = time + 'ms'; if ( !time && utils.isBadAndroid ) { this.scrollerStyle[utils.style.transitionDuration] = '0.001s'; } if ( this.indicators ) { for ( var i = this.indicators.length; i--; ) { this.indicators[i].transitionTime(time); } } // INSERT POINT: _transitionTime }, _transitionTimingFunction: function (easing) { this.scrollerStyle[utils.style.transitionTimingFunction] = easing; if ( this.indicators ) { for ( var i = this.indicators.length; i--; ) { this.indicators[i].transitionTimingFunction(easing); } } // INSERT POINT: _transitionTimingFunction }, _translate: function (x, y) { if ( this.options.useTransform ) { /* REPLACE START: _translate */ this.scrollerStyle[utils.style.transform] = 'translate(' + x + 'px,' + y + 'px) scale(' + this.scale + ') ' + this.translateZ;/* REPLACE END: _translate */ } else { x = Math.round(x); y = Math.round(y); this.scrollerStyle.left = x + 'px'; this.scrollerStyle.top = y + 'px'; } this.x = x; this.y = y; if ( this.indicators ) { for ( var i = this.indicators.length; i--; ) { this.indicators[i].updatePosition(); } } // INSERT POINT: _translate }, _initEvents: function (remove) { var eventType = remove ? utils.removeEvent : utils.addEvent, target = this.options.bindToWrapper ? this.wrapper : window; eventType(window, 'orientationchange', this); eventType(window, 'resize', this); if ( this.options.click ) { eventType(this.wrapper, 'click', this, true); } if ( !this.options.disableMouse ) { eventType(this.wrapper, 'mousedown', this); eventType(target, 'mousemove', this); eventType(target, 'mousecancel', this); eventType(target, 'mouseup', this); } if ( utils.hasPointer && !this.options.disablePointer ) { eventType(this.wrapper, utils.prefixPointerEvent('pointerdown'), this); eventType(target, utils.prefixPointerEvent('pointermove'), this); eventType(target, utils.prefixPointerEvent('pointercancel'), this); eventType(target, utils.prefixPointerEvent('pointerup'), this); } if ( utils.hasTouch && !this.options.disableTouch ) { eventType(this.wrapper, 'touchstart', this); eventType(target, 'touchmove', this); eventType(target, 'touchcancel', this); eventType(target, 'touchend', this); } eventType(this.scroller, 'transitionend', this); eventType(this.scroller, 'webkitTransitionEnd', this); eventType(this.scroller, 'oTransitionEnd', this); eventType(this.scroller, 'MSTransitionEnd', this); }, getComputedPosition: function () { var matrix = window.getComputedStyle(this.scroller, null), x, y; if ( this.options.useTransform ) { matrix = matrix[utils.style.transform].split(')')[0].split(', '); x = +(matrix[12] || matrix[4]); y = +(matrix[13] || matrix[5]); } else { x = +matrix.left.replace(/[^-d.]/g, ''); y = +matrix.top.replace(/[^-d.]/g, ''); } return { x: x, y: y }; }, _initIndicators: function () { var interactive = this.options.interactiveScrollbars, customStyle = typeof this.options.scrollbars != 'string', indicators = [], indicator; var that = this; this.indicators = []; if ( this.options.scrollbars ) { // Vertical scrollbar if ( this.options.scrollY ) { indicator = { el: createDefaultScrollbar('v', interactive, this.options.scrollbars), interactive: interactive, defaultScrollbars: true, customStyle: customStyle, resize: this.options.resizeScrollbars, shrink: this.options.shrinkScrollbars, fade: this.options.fadeScrollbars, listenX: false }; this.wrapper.appendChild(indicator.el); indicators.push(indicator); } // Horizontal scrollbar if ( this.options.scrollX ) { indicator = { el: createDefaultScrollbar('h', interactive, this.options.scrollbars), interactive: interactive, defaultScrollbars: true, customStyle: customStyle, resize: this.options.resizeScrollbars, shrink: this.options.shrinkScrollbars, fade: this.options.fadeScrollbars, listenY: false }; this.wrapper.appendChild(indicator.el); indicators.push(indicator); } } if ( this.options.indicators ) { // TODO: check concat compatibility indicators = indicators.concat(this.options.indicators); } for ( var i = indicators.length; i--; ) { this.indicators.push( new Indicator(this, indicators[i]) ); } // TODO: check if we can use array.map (wide compatibility and performance issues) function _indicatorsMap (fn) { for ( var i = that.indicators.length; i--; ) { fn.call(that.indicators[i]); } } if ( this.options.fadeScrollbars ) { this.on('scrollEnd', function () { _indicatorsMap(function () { this.fade(); }); }); this.on('scrollCancel', function () { _indicatorsMap(function () { this.fade(); }); }); this.on('scrollStart', function () { _indicatorsMap(function () { this.fade(1); }); }); this.on('beforeScrollStart', function () { _indicatorsMap(function () { this.fade(1, true); }); }); } this.on('refresh', function () { _indicatorsMap(function () { this.refresh(); }); }); this.on('destroy', function () { _indicatorsMap(function () { this.destroy(); }); delete this.indicators; }); }, _initZoom: function () { this.scrollerStyle[utils.style.transformOrigin] = '0 0'; }, _zoomStart: function (e) { var c1 = Math.abs( e.touches[0].pageX - e.touches[1].pageX ), c2 = Math.abs( e.touches[0].pageY - e.touches[1].pageY ); this.touchesDistanceStart = Math.sqrt(c1 * c1 + c2 * c2); this.startScale = this.scale; this.originX = Math.abs(e.touches[0].pageX + e.touches[1].pageX) / 2 + this.wrapperOffset.left - this.x; this.originY = Math.abs(e.touches[0].pageY + e.touches[1].pageY) / 2 + this.wrapperOffset.top - this.y; this._execEvent('zoomStart'); }, _zoom: function (e) { if ( !this.enabled || utils.eventType[e.type] !== this.initiated ) { return; } if ( this.options.preventDefault ) { e.preventDefault(); } var c1 = Math.abs( e.touches[0].pageX - e.touches[1].pageX ), c2 = Math.abs( e.touches[0].pageY - e.touches[1].pageY ), distance = Math.sqrt( c1 * c1 + c2 * c2 ), scale = 1 / this.touchesDistanceStart * distance * this.startScale, lastScale, x, y; this.scaled = true; if ( scale < this.options.zoomMin ) { scale = 0.5 * this.options.zoomMin * Math.pow(2.0, scale / this.options.zoomMin); } else if ( scale > this.options.zoomMax ) { scale = 2.0 * this.options.zoomMax * Math.pow(0.5, this.options.zoomMax / scale); } lastScale = scale / this.startScale; x = this.originX - this.originX * lastScale + this.startX; y = this.originY - this.originY * lastScale + this.startY; this.scale = scale; this.scrollTo(x, y, 0); }, _zoomEnd: function (e) { if ( !this.enabled || utils.eventType[e.type] !== this.initiated ) { return; } if ( this.options.preventDefault ) { e.preventDefault(); }