diff options
Diffstat (limited to 'qpid/tools/src/java/qpid-qmf2-tools/bin/qpid-web/web/itablet/scripts/iscroll.js')
| -rw-r--r-- | qpid/tools/src/java/qpid-qmf2-tools/bin/qpid-web/web/itablet/scripts/iscroll.js | 1117 |
1 files changed, 1117 insertions, 0 deletions
diff --git a/qpid/tools/src/java/qpid-qmf2-tools/bin/qpid-web/web/itablet/scripts/iscroll.js b/qpid/tools/src/java/qpid-qmf2-tools/bin/qpid-web/web/itablet/scripts/iscroll.js new file mode 100644 index 0000000000..46330e51f7 --- /dev/null +++ b/qpid/tools/src/java/qpid-qmf2-tools/bin/qpid-web/web/itablet/scripts/iscroll.js @@ -0,0 +1,1117 @@ +/*! + * iScroll v4.2 ~ Copyright (c) 2012 Matteo Spinelli, http://cubiq.org + * Released under MIT license, http://cubiq.org/license + */ +(function(window, doc){ +var m = Math, + dummyStyle = doc.createElement('div').style, + vendor = (function () { + var vendors = 't,webkitT,MozT,msT,OT'.split(','), + t, + i = 0, + l = vendors.length; + + for ( ; i < l; i++ ) { + t = vendors[i] + 'ransform'; + if ( t in dummyStyle ) { + return vendors[i].substr(0, vendors[i].length - 1); + } + } + + return false; + })(), + cssVendor = vendor ? '-' + vendor.toLowerCase() + '-' : '', + + // Style properties + transform = prefixStyle('transform'), + transitionProperty = prefixStyle('transitionProperty'), + transitionDuration = prefixStyle('transitionDuration'), + transformOrigin = prefixStyle('transformOrigin'), + transitionTimingFunction = prefixStyle('transitionTimingFunction'), + transitionDelay = prefixStyle('transitionDelay'), + + // Browser capabilities + isAndroid = (/android/gi).test(navigator.appVersion), + isIDevice = (/iphone|ipad/gi).test(navigator.appVersion), + isTouchPad = (/hp-tablet/gi).test(navigator.appVersion), + + has3d = prefixStyle('perspective') in dummyStyle, + hasTouch = 'ontouchstart' in window && !isTouchPad, + hasTransform = !!vendor, + hasTransitionEnd = prefixStyle('transition') in dummyStyle, + + RESIZE_EV = 'onorientationchange' in window ? 'orientationchange' : 'resize', + START_EV = hasTouch ? 'touchstart' : 'mousedown', + MOVE_EV = hasTouch ? 'touchmove' : 'mousemove', + END_EV = hasTouch ? 'touchend' : 'mouseup', + CANCEL_EV = hasTouch ? 'touchcancel' : 'mouseup', + WHEEL_EV = vendor == 'Moz' ? 'DOMMouseScroll' : 'mousewheel', + TRNEND_EV = (function () { + if ( vendor === false ) return false; + + var transitionEnd = { + '' : 'transitionend', + 'webkit' : 'webkitTransitionEnd', + 'Moz' : 'transitionend', + 'O' : 'oTransitionEnd', + 'ms' : 'MSTransitionEnd' + }; + + return transitionEnd[vendor]; + })(), + + nextFrame = (function() { + return window.requestAnimationFrame || + window.webkitRequestAnimationFrame || + window.mozRequestAnimationFrame || + window.oRequestAnimationFrame || + window.msRequestAnimationFrame || + function(callback) { return setTimeout(callback, 1); }; + })(), + cancelFrame = (function () { + return window.cancelRequestAnimationFrame || + window.webkitCancelAnimationFrame || + window.webkitCancelRequestAnimationFrame || + window.mozCancelRequestAnimationFrame || + window.oCancelRequestAnimationFrame || + window.msCancelRequestAnimationFrame || + clearTimeout; + })(), + + // Helpers + translateZ = has3d ? ' translateZ(0)' : '', + + // Constructor + iScroll = function (el, options) { + var that = this, + i; + + that.wrapper = typeof el == 'object' ? el : doc.getElementById(el); + that.wrapper.style.overflow = 'hidden'; + that.scroller = that.wrapper.children[0]; + + // Default options + that.options = { + hScroll: true, + vScroll: true, + x: 0, + y: 0, + bounce: true, + bounceLock: false, + momentum: true, + lockDirection: true, + useTransform: true, + useTransition: false, + topOffset: 0, + checkDOMChanges: false, // Experimental + handleClick: true, + + // Scrollbar + hScrollbar: true, + vScrollbar: true, + fixedScrollbar: isAndroid, + hideScrollbar: isIDevice, + fadeScrollbar: isIDevice && has3d, + scrollbarClass: '', + + // Zoom + zoom: false, + zoomMin: 1, + zoomMax: 4, + doubleTapZoom: 2, + wheelAction: 'scroll', + + // Snap + snap: false, + snapThreshold: 1, + + // Events + onRefresh: null, + onBeforeScrollStart: function (e) { e.preventDefault(); }, + onScrollStart: null, + onBeforeScrollMove: null, + onScrollMove: null, + onBeforeScrollEnd: null, + onScrollEnd: null, + onTouchEnd: null, + onDestroy: null, + onZoomStart: null, + onZoom: null, + onZoomEnd: null + }; + + // User defined options + for (i in options) that.options[i] = options[i]; + + // Set starting position + that.x = that.options.x; + that.y = that.options.y; + + // Normalize options + that.options.useTransform = hasTransform && that.options.useTransform; + that.options.hScrollbar = that.options.hScroll && that.options.hScrollbar; + that.options.vScrollbar = that.options.vScroll && that.options.vScrollbar; + that.options.zoom = that.options.useTransform && that.options.zoom; + that.options.useTransition = hasTransitionEnd && that.options.useTransition; + + // Helpers FIX ANDROID BUG! + // translate3d and scale doesn't work together! + // Ignoring 3d ONLY WHEN YOU SET that.options.zoom + if ( that.options.zoom && isAndroid ){ + translateZ = ''; + } + + // Set some default styles + that.scroller.style[transitionProperty] = that.options.useTransform ? cssVendor + 'transform' : 'top left'; + that.scroller.style[transitionDuration] = '0'; + that.scroller.style[transformOrigin] = '0 0'; + if (that.options.useTransition) that.scroller.style[transitionTimingFunction] = 'cubic-bezier(0.33,0.66,0.66,1)'; + + if (that.options.useTransform) that.scroller.style[transform] = 'translate(' + that.x + 'px,' + that.y + 'px)' + translateZ; + else that.scroller.style.cssText += ';position:absolute;top:' + that.y + 'px;left:' + that.x + 'px'; + + if (that.options.useTransition) that.options.fixedScrollbar = true; + + that.refresh(); + + that._bind(RESIZE_EV, window); + that._bind(START_EV); + if (!hasTouch) { + that._bind('mouseout', that.wrapper); + if (that.options.wheelAction != 'none') + that._bind(WHEEL_EV); + } + + if (that.options.checkDOMChanges) that.checkDOMTime = setInterval(function () { + that._checkDOMChanges(); + }, 500); + }; + +// Prototype +iScroll.prototype = { + enabled: true, + x: 0, + y: 0, + steps: [], + scale: 1, + currPageX: 0, currPageY: 0, + pagesX: [], pagesY: [], + aniTime: null, + wheelZoomCount: 0, + + handleEvent: function (e) { + var that = this; + switch(e.type) { + case START_EV: + if (!hasTouch && e.button !== 0) return; + that._start(e); + break; + case MOVE_EV: that._move(e); break; + case END_EV: + case CANCEL_EV: that._end(e); break; + case RESIZE_EV: that._resize(); break; + case WHEEL_EV: that._wheel(e); break; + case 'mouseout': that._mouseout(e); break; + case TRNEND_EV: that._transitionEnd(e); break; + } + }, + + _checkDOMChanges: function () { + if (this.moved || this.zoomed || this.animating || + (this.scrollerW == this.scroller.offsetWidth * this.scale && this.scrollerH == this.scroller.offsetHeight * this.scale)) return; + + this.refresh(); + }, + + _scrollbar: function (dir) { + var that = this, + bar; + + if (!that[dir + 'Scrollbar']) { + if (that[dir + 'ScrollbarWrapper']) { + if (hasTransform) that[dir + 'ScrollbarIndicator'].style[transform] = ''; + that[dir + 'ScrollbarWrapper'].parentNode.removeChild(that[dir + 'ScrollbarWrapper']); + that[dir + 'ScrollbarWrapper'] = null; + that[dir + 'ScrollbarIndicator'] = null; + } + + return; + } + + if (!that[dir + 'ScrollbarWrapper']) { + // Create the scrollbar wrapper + bar = doc.createElement('div'); + + if (that.options.scrollbarClass) bar.className = that.options.scrollbarClass + dir.toUpperCase(); + 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'); + + 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'); + + that.wrapper.appendChild(bar); + that[dir + 'ScrollbarWrapper'] = bar; + + // Create the scrollbar indicator + bar = doc.createElement('div'); + if (!that.options.scrollbarClass) { + 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'; + } + 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; + if (that.options.useTransition) bar.style.cssText += ';' + cssVendor + 'transition-timing-function:cubic-bezier(0.33,0.66,0.66,1)'; + + that[dir + 'ScrollbarWrapper'].appendChild(bar); + that[dir + 'ScrollbarIndicator'] = bar; + } + + if (dir == 'h') { + that.hScrollbarSize = that.hScrollbarWrapper.clientWidth; + that.hScrollbarIndicatorSize = m.max(m.round(that.hScrollbarSize * that.hScrollbarSize / that.scrollerW), 8); + that.hScrollbarIndicator.style.width = that.hScrollbarIndicatorSize + 'px'; + that.hScrollbarMaxScroll = that.hScrollbarSize - that.hScrollbarIndicatorSize; + that.hScrollbarProp = that.hScrollbarMaxScroll / that.maxScrollX; + } else { + that.vScrollbarSize = that.vScrollbarWrapper.clientHeight; + that.vScrollbarIndicatorSize = m.max(m.round(that.vScrollbarSize * that.vScrollbarSize / that.scrollerH), 8); + that.vScrollbarIndicator.style.height = that.vScrollbarIndicatorSize + 'px'; + that.vScrollbarMaxScroll = that.vScrollbarSize - that.vScrollbarIndicatorSize; + that.vScrollbarProp = that.vScrollbarMaxScroll / that.maxScrollY; + } + + // Reset position + that._scrollbarPos(dir, true); + }, + + _resize: function () { + var that = this; + setTimeout(function () { that.refresh(); }, isAndroid ? 200 : 0); + }, + + _pos: function (x, y) { + if (this.zoomed) return; + + x = this.hScroll ? x : 0; + y = this.vScroll ? y : 0; + + if (this.options.useTransform) { + this.scroller.style[transform] = 'translate(' + x + 'px,' + y + 'px) scale(' + this.scale + ')' + translateZ; + } else { + x = m.round(x); + y = m.round(y); + this.scroller.style.left = x + 'px'; + this.scroller.style.top = y + 'px'; + } + + this.x = x; + this.y = y; + + this._scrollbarPos('h'); + this._scrollbarPos('v'); + }, + + _scrollbarPos: function (dir, hidden) { + var that = this, + pos = dir == 'h' ? that.x : that.y, + size; + + if (!that[dir + 'Scrollbar']) return; + + pos = that[dir + 'ScrollbarProp'] * pos; + + if (pos < 0) { + if (!that.options.fixedScrollbar) { + size = that[dir + 'ScrollbarIndicatorSize'] + m.round(pos * 3); + if (size < 8) size = 8; + that[dir + 'ScrollbarIndicator'].style[dir == 'h' ? 'width' : 'height'] = size + 'px'; + } + pos = 0; + } else if (pos > that[dir + 'ScrollbarMaxScroll']) { + if (!that.options.fixedScrollbar) { + size = that[dir + 'ScrollbarIndicatorSize'] - m.round((pos - that[dir + 'ScrollbarMaxScroll']) * 3); + if (size < 8) size = 8; + that[dir + 'ScrollbarIndicator'].style[dir == 'h' ? 'width' : 'height'] = size + 'px'; + pos = that[dir + 'ScrollbarMaxScroll'] + (that[dir + 'ScrollbarIndicatorSize'] - size); + } else { + pos = that[dir + 'ScrollbarMaxScroll']; + } + } + + that[dir + 'ScrollbarWrapper'].style[transitionDelay] = '0'; + that[dir + 'ScrollbarWrapper'].style.opacity = hidden && that.options.hideScrollbar ? '0' : '1'; + that[dir + 'ScrollbarIndicator'].style[transform] = 'translate(' + (dir == 'h' ? pos + 'px,0)' : '0,' + pos + 'px)') + translateZ; + }, + + _start: function (e) { + var that = this, + point = hasTouch ? e.touches[0] : e, + matrix, x, y, + c1, c2; + + if (!that.enabled) return; + + if (that.options.onBeforeScrollStart) that.options.onBeforeScrollStart.call(that, e); + + if (that.options.useTransition || that.options.zoom) that._transitionTime(0); + + that.moved = false; + that.animating = false; + that.zoomed = false; + that.distX = 0; + that.distY = 0; + that.absDistX = 0; + that.absDistY = 0; + that.dirX = 0; + that.dirY = 0; + + // Gesture start + if (that.options.zoom && hasTouch && e.touches.length > 1) { + c1 = m.abs(e.touches[0].pageX-e.touches[1].pageX); + c2 = m.abs(e.touches[0].pageY-e.touches[1].pageY); + that.touchesDistStart = m.sqrt(c1 * c1 + c2 * c2); + + that.originX = m.abs(e.touches[0].pageX + e.touches[1].pageX - that.wrapperOffsetLeft * 2) / 2 - that.x; + that.originY = m.abs(e.touches[0].pageY + e.touches[1].pageY - that.wrapperOffsetTop * 2) / 2 - that.y; + + if (that.options.onZoomStart) that.options.onZoomStart.call(that, e); + } + + if (that.options.momentum) { + if (that.options.useTransform) { + // Very lame general purpose alternative to CSSMatrix + matrix = getComputedStyle(that.scroller, null)[transform].replace(/[^0-9\-.,]/g, '').split(','); + x = matrix[4] * 1; + y = matrix[5] * 1; + } else { + x = getComputedStyle(that.scroller, null).left.replace(/[^0-9-]/g, '') * 1; + y = getComputedStyle(that.scroller, null).top.replace(/[^0-9-]/g, '') * 1; + } + + if (x != that.x || y != that.y) { + if (that.options.useTransition) that._unbind(TRNEND_EV); + else cancelFrame(that.aniTime); + that.steps = []; + that._pos(x, y); + } + } + + that.absStartX = that.x; // Needed by snap threshold + that.absStartY = that.y; + + that.startX = that.x; + that.startY = that.y; + that.pointX = point.pageX; + that.pointY = point.pageY; + + that.startTime = e.timeStamp || Date.now(); + + if (that.options.onScrollStart) that.options.onScrollStart.call(that, e); + + that._bind(MOVE_EV); + that._bind(END_EV); + that._bind(CANCEL_EV); + }, + + _move: function (e) { + var that = this, + point = hasTouch ? e.touches[0] : e, + deltaX = point.pageX - that.pointX, + deltaY = point.pageY - that.pointY, + newX = that.x + deltaX, + newY = that.y + deltaY, + c1, c2, scale, + timestamp = e.timeStamp || Date.now(); + + if (that.options.onBeforeScrollMove) that.options.onBeforeScrollMove.call(that, e); + + // Zoom + if (that.options.zoom && hasTouch && e.touches.length > 1) { + c1 = m.abs(e.touches[0].pageX - e.touches[1].pageX); + c2 = m.abs(e.touches[0].pageY - e.touches[1].pageY); + that.touchesDist = m.sqrt(c1*c1+c2*c2); + + that.zoomed = true; + + scale = 1 / that.touchesDistStart * that.touchesDist * this.scale; + + if (scale < that.options.zoomMin) scale = 0.5 * that.options.zoomMin * Math.pow(2.0, scale / that.options.zoomMin); + else if (scale > that.options.zoomMax) scale = 2.0 * that.options.zoomMax * Math.pow(0.5, that.options.zoomMax / scale); + + that.lastScale = scale / this.scale; + + newX = this.originX - this.originX * that.lastScale + this.x, + newY = this.originY - this.originY * that.lastScale + this.y; + + this.scroller.style[transform] = 'translate(' + newX + 'px,' + newY + 'px) scale(' + scale + ')' + translateZ; + + if (that.options.onZoom) that.options.onZoom.call(that, e); + return; + } + + that.pointX = point.pageX; + that.pointY = point.pageY; + + // Slow down if outside of the boundaries + if (newX > 0 || newX < that.maxScrollX) { + newX = that.options.bounce ? that.x + (deltaX / 2) : newX >= 0 || that.maxScrollX >= 0 ? 0 : that.maxScrollX; + } + if (newY > that.minScrollY || newY < that.maxScrollY) { + newY = that.options.bounce ? that.y + (deltaY / 2) : newY >= that.minScrollY || that.maxScrollY >= 0 ? that.minScrollY : that.maxScrollY; + } + + that.distX += deltaX; + that.distY += deltaY; + that.absDistX = m.abs(that.distX); + that.absDistY = m.abs(that.distY); + + if (that.absDistX < 6 && that.absDistY < 6) { + return; + } + + // Lock direction + if (that.options.lockDirection) { + if (that.absDistX > that.absDistY + 5) { + newY = that.y; + deltaY = 0; + } else if (that.absDistY > that.absDistX + 5) { + newX = that.x; + deltaX = 0; + } + } + + that.moved = true; + that._pos(newX, newY); + that.dirX = deltaX > 0 ? -1 : deltaX < 0 ? 1 : 0; + that.dirY = deltaY > 0 ? -1 : deltaY < 0 ? 1 : 0; + + if (timestamp - that.startTime > 300) { + that.startTime = timestamp; + that.startX = that.x; + that.startY = that.y; + } + + if (that.options.onScrollMove) that.options.onScrollMove.call(that, e); + }, + + _end: function (e) { + if (hasTouch && e.touches.length !== 0) return; + + var that = this, + point = hasTouch ? e.changedTouches[0] : e, + target, ev, + momentumX = { dist:0, time:0 }, + momentumY = { dist:0, time:0 }, + duration = (e.timeStamp || Date.now()) - that.startTime, + newPosX = that.x, + newPosY = that.y, + distX, distY, + newDuration, + snap, + scale; + + that._unbind(MOVE_EV); + that._unbind(END_EV); + that._unbind(CANCEL_EV); + + if (that.options.onBeforeScrollEnd) that.options.onBeforeScrollEnd.call(that, e); + + if (that.zoomed) { + scale = that.scale * that.lastScale; + scale = Math.max(that.options.zoomMin, scale); + scale = Math.min(that.options.zoomMax, scale); + that.lastScale = scale / that.scale; + that.scale = scale; + + that.x = that.originX - that.originX * that.lastScale + that.x; + that.y = that.originY - that.originY * that.lastScale + that.y; + + that.scroller.style[transitionDuration] = '200ms'; + that.scroller.style[transform] = 'translate(' + that.x + 'px,' + that.y + 'px) scale(' + that.scale + ')' + translateZ; + + that.zoomed = false; + that.refresh(); + + if (that.options.onZoomEnd) that.options.onZoomEnd.call(that, e); + return; + } + + if (!that.moved) { + if (hasTouch) { + if (that.doubleTapTimer && that.options.zoom) { + // Double tapped + clearTimeout(that.doubleTapTimer); + that.doubleTapTimer = null; + if (that.options.onZoomStart) that.options.onZoomStart.call(that, e); + that.zoom(that.pointX, that.pointY, that.scale == 1 ? that.options.doubleTapZoom : 1); + if (that.options.onZoomEnd) { + setTimeout(function() { + that.options.onZoomEnd.call(that, e); + }, 200); // 200 is default zoom duration + } + } else if (this.options.handleClick) { + that.doubleTapTimer = setTimeout(function () { + that.doubleTapTimer = null; + + // Find the last touched element + target = point.target; + while (target.nodeType != 1) target = target.parentNode; + + if (target.tagName != 'SELECT' && target.tagName != 'INPUT' && target.tagName != 'TEXTAREA') { + ev = doc.createEvent('MouseEvents'); + ev.initMouseEvent('click', true, true, e.view, 1, + point.screenX, point.screenY, point.clientX, point.clientY, + e.ctrlKey, e.altKey, e.shiftKey, e.metaKey, + 0, null); + ev._fake = true; + target.dispatchEvent(ev); + } + }, that.options.zoom ? 250 : 0); + } + } + + that._resetPos(200); + + if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e); + return; + } + + if (duration < 300 && that.options.momentum) { + momentumX = newPosX ? that._momentum(newPosX - that.startX, duration, -that.x, that.scrollerW - that.wrapperW + that.x, that.options.bounce ? that.wrapperW : 0) : momentumX; + 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; + + newPosX = that.x + momentumX.dist; + newPosY = that.y + momentumY.dist; + + if ((that.x > 0 && newPosX > 0) || (that.x < that.maxScrollX && newPosX < that.maxScrollX)) momentumX = { dist:0, time:0 }; + if ((that.y > that.minScrollY && newPosY > that.minScrollY) || (that.y < that.maxScrollY && newPosY < that.maxScrollY)) momentumY = { dist:0, time:0 }; + } + + if (momentumX.dist || momentumY.dist) { + newDuration = m.max(m.max(momentumX.time, momentumY.time), 10); + + // Do we need to snap? + if (that.options.snap) { + distX = newPosX - that.absStartX; + distY = newPosY - that.absStartY; + if (m.abs(distX) < that.options.snapThreshold && m.abs(distY) < that.options.snapThreshold) { that.scrollTo(that.absStartX, that.absStartY, 200); } + else { + snap = that._snap(newPosX, newPosY); + newPosX = snap.x; + newPosY = snap.y; + newDuration = m.max(snap.time, newDuration); + } + } + + that.scrollTo(m.round(newPosX), m.round(newPosY), newDuration); + + if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e); + return; + } + + // Do we need to snap? + if (that.options.snap) { + distX = newPosX - that.absStartX; + distY = newPosY - that.absStartY; + if (m.abs(distX) < that.options.snapThreshold && m.abs(distY) < that.options.snapThreshold) that.scrollTo(that.absStartX, that.absStartY, 200); + else { + snap = that._snap(that.x, that.y); + if (snap.x != that.x || snap.y != that.y) that.scrollTo(snap.x, snap.y, snap.time); + } + + if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e); + return; + } + + that._resetPos(200); + if (that.options.onTouchEnd) that.options.onTouchEnd.call(that, e); + }, + + _resetPos: function (time) { + var that = this, + resetX = that.x >= 0 ? 0 : that.x < that.maxScrollX ? that.maxScrollX : that.x, + resetY = that.y >= that.minScrollY || that.maxScrollY > 0 ? that.minScrollY : that.y < that.maxScrollY ? that.maxScrollY : that.y; + + if (resetX == that.x && resetY == that.y) { + if (that.moved) { + that.moved = false; + if (that.options.onScrollEnd) that.options.onScrollEnd.call(that); // Execute custom code on scroll end + } + + if (that.hScrollbar && that.options.hideScrollbar) { + if (vendor == 'webkit') that.hScrollbarWrapper.style[transitionDelay] = '300ms'; + that.hScrollbarWrapper.style.opacity = '0'; + } + if (that.vScrollbar && that.options.hideScrollbar) { + if (vendor == 'webkit') that.vScrollbarWrapper.style[transitionDelay] = '300ms'; + that.vScrollbarWrapper.style.opacity = '0'; + } + + return; + } + + that.scrollTo(resetX, resetY, time || 0); + }, + + _wheel: function (e) { + var that = this, + wheelDeltaX, wheelDeltaY, + deltaX, deltaY, + deltaScale; + + if ('wheelDeltaX' in e) { + wheelDeltaX = e.wheelDeltaX / 12; + wheelDeltaY = e.wheelDeltaY / 12; + } else if('wheelDelta' in e) { + wheelDeltaX = wheelDeltaY = e.wheelDelta / 12; + } else if ('detail' in e) { + wheelDeltaX = wheelDeltaY = -e.detail * 3; + } else { + return; + } + + if (that.options.wheelAction == 'zoom') { + deltaScale = that.scale * Math.pow(2, 1/3 * (wheelDeltaY ? wheelDeltaY / Math.abs(wheelDeltaY) : 0)); + if (deltaScale < that.options.zoomMin) deltaScale = that.options.zoomMin; + if (deltaScale > that.options.zoomMax) deltaScale = that.options.zoomMax; + + if (deltaScale != that.scale) { + if (!that.wheelZoomCount && that.options.onZoomStart) that.options.onZoomStart.call(that, e); + that.wheelZoomCount++; + + that.zoom(e.pageX, e.pageY, deltaScale, 400); + + setTimeout(function() { + that.wheelZoomCount--; + if (!that.wheelZoomCount && that.options.onZoomEnd) that.options.onZoomEnd.call(that, e); + }, 400); + } + + return; + } + + deltaX = that.x + wheelDeltaX; + deltaY = that.y + wheelDeltaY; + + if (deltaX > 0) deltaX = 0; + else if (deltaX < that.maxScrollX) deltaX = that.maxScrollX; + + if (deltaY > that.minScrollY) deltaY = that.minScrollY; + else if (deltaY < that.maxScrollY) deltaY = that.maxScrollY; + + if (that.maxScrollY < 0) { + that.scrollTo(deltaX, deltaY, 0); + } + }, + + _mouseout: function (e) { + var t = e.relatedTarget; + + if (!t) { + this._end(e); + return; + } + + while (t = t.parentNode) if (t == this.wrapper) return; + + this._end(e); + }, + + _transitionEnd: function (e) { + var that = this; + + if (e.target != that.scroller) return; + + that._unbind(TRNEND_EV); + + that._startAni(); + }, + + + /** + * + * Utilities + * + */ + _startAni: function () { + var that = this, + startX = that.x, startY = that.y, + startTime = Date.now(), + step, easeOut, + animate; + + if (that.animating) return; + + if (!that.steps.length) { + that._resetPos(400); + return; + } + + step = that.steps.shift(); + + if (step.x == startX && step.y == startY) step.time = 0; + + that.animating = true; + that.moved = true; + + if (that.options.useTransition) { + that._transitionTime(step.time); + that._pos(step.x, step.y); + that.animating = false; + if (step.time) that._bind(TRNEND_EV); + else that._resetPos(0); + return; + } + + animate = function () { + var now = Date.now(), + newX, newY; + + if (now >= startTime + step.time) { + that._pos(step.x, step.y); + that.animating = false; + if (that.options.onAnimationEnd) that.options.onAnimationEnd.call(that); // Execute custom code on animation end + that._startAni(); + return; + } + + now = (now - startTime) / step.time - 1; + easeOut = m.sqrt(1 - now * now); + newX = (step.x - startX) * easeOut + startX; + newY = (step.y - startY) * easeOut + startY; + that._pos(newX, newY); + if (that.animating) that.aniTime = nextFrame(animate); + }; + + animate(); + }, + + _transitionTime: function (time) { + time += 'ms'; + this.scroller.style[transitionDuration] = time; + if (this.hScrollbar) this.hScrollbarIndicator.style[transitionDuration] = time; + if (this.vScrollbar) this.vScrollbarIndicator.style[transitionDuration] = time; + }, + + _momentum: function (dist, time, maxDistUpper, maxDistLower, size) { + var deceleration = 0.0006, + speed = m.abs(dist) / time, + newDist = (speed * speed) / (2 * deceleration), + newTime = 0, outsideDist = 0; + + // Proportinally reduce speed if we are outside of the boundaries + if (dist > 0 && newDist > maxDistUpper) { + outsideDist = size / (6 / (newDist / speed * deceleration)); + maxDistUpper = maxDistUpper + outsideDist; + speed = speed * maxDistUpper / newDist; + newDist = maxDistUpper; + } else if (dist < 0 && newDist > maxDistLower) { + outsideDist = size / (6 / (newDist / speed * deceleration)); + maxDistLower = maxDistLower + outsideDist; + speed = speed * maxDistLower / newDist; + newDist = maxDistLower; + } + + newDist = newDist * (dist < 0 ? -1 : 1); + newTime = speed / deceleration; + + return { dist: newDist, time: m.round(newTime) }; + }, + + _offset: function (el) { + var left = -el.offsetLeft, + top = -el.offsetTop; + + while (el = el.offsetParent) { + left -= el.offsetLeft; + top -= el.offsetTop; + } + + if (el != this.wrapper) { + left *= this.scale; + top *= this.scale; + } + + return { left: left, top: top }; + }, + + _snap: function (x, y) { + var that = this, + i, l, + page, time, + sizeX, sizeY; + + // Check page X + page = that.pagesX.length - 1; + for (i=0, l=that.pagesX.length; i<l; i++) { + if (x >= that.pagesX[i]) { + page = i; + break; + } + } + if (page == that.currPageX && page > 0 && that.dirX < 0) page--; + x = that.pagesX[page]; + sizeX = m.abs(x - that.pagesX[that.currPageX]); + sizeX = sizeX ? m.abs(that.x - x) / sizeX * 500 : 0; + that.currPageX = page; + + // Check page Y + page = that.pagesY.length-1; + for (i=0; i<page; i++) { + if (y >= that.pagesY[i]) { + page = i; + break; + } + } + if (page == that.currPageY && page > 0 && that.dirY < 0) page--; + y = that.pagesY[page]; + sizeY = m.abs(y - that.pagesY[that.currPageY]); + sizeY = sizeY ? m.abs(that.y - y) / sizeY * 500 : 0; + that.currPageY = page; + + // Snap with constant speed (proportional duration) + time = m.round(m.max(sizeX, sizeY)) || 200; + + return { x: x, y: y, time: time }; + }, + + _bind: function (type, el, bubble) { + (el || this.scroller).addEventListener(type, this, !!bubble); + }, + + _unbind: function (type, el, bubble) { + (el || this.scroller).removeEventListener(type, this, !!bubble); + }, + + + /** + * + * Public methods + * + */ + destroy: function () { + var that = this; + + that.scroller.style[transform] = ''; + + // Remove the scrollbars + that.hScrollbar = false; + that.vScrollbar = false; + that._scrollbar('h'); + that._scrollbar('v'); + + // Remove the event listeners + that._unbind(RESIZE_EV, window); + that._unbind(START_EV); + that._unbind(MOVE_EV); + that._unbind(END_EV); + that._unbind(CANCEL_EV); + + if (!that.options.hasTouch) { + that._unbind('mouseout', that.wrapper); + that._unbind(WHEEL_EV); + } + + if (that.options.useTransition) that._unbind(TRNEND_EV); + + if (that.options.checkDOMChanges) clearInterval(that.checkDOMTime); + + if (that.options.onDestroy) that.options.onDestroy.call(that); + }, + + refresh: function () { + var that = this, + offset, + i, l, + els, + pos = 0, + page = 0; + + if (that.scale < that.options.zoomMin) that.scale = that.options.zoomMin; + that.wrapperW = that.wrapper.clientWidth || 1; + that.wrapperH = that.wrapper.clientHeight || 1; + + that.minScrollY = -that.options.topOffset || 0; + that.scrollerW = m.round(that.scroller.offsetWidth * that.scale); + that.scrollerH = m.round((that.scroller.offsetHeight + that.minScrollY) * that.scale); + that.maxScrollX = that.wrapperW - that.scrollerW; + that.maxScrollY = that.wrapperH - that.scrollerH + that.minScrollY; + that.dirX = 0; + that.dirY = 0; + + if (that.options.onRefresh) that.options.onRefresh.call(that); + + that.hScroll = that.options.hScroll && that.maxScrollX < 0; + that.vScroll = that.options.vScroll && (!that.options.bounceLock && !that.hScroll || that.scrollerH > that.wrapperH); + + that.hScrollbar = that.hScroll && that.options.hScrollbar; + that.vScrollbar = that.vScroll && that.options.vScrollbar && that.scrollerH > that.wrapperH; + + offset = that._offset(that.wrapper); + that.wrapperOffsetLeft = -offset.left; + that.wrapperOffsetTop = -offset.top; + + // Prepare snap + if (typeof that.options.snap == 'string') { + that.pagesX = []; + that.pagesY = []; + els = that.scroller.querySelectorAll(that.options.snap); + for (i=0, l=els.length; i<l; i++) { + pos = that._offset(els[i]); + pos.left += that.wrapperOffsetLeft; + pos.top += that.wrapperOffsetTop; + that.pagesX[i] = pos.left < that.maxScrollX ? that.maxScrollX : pos.left * that.scale; + that.pagesY[i] = pos.top < that.maxScrollY ? that.maxScrollY : pos.top * that.scale; + } + } else if (that.options.snap) { + that.pagesX = []; + while (pos >= that.maxScrollX) { + that.pagesX[page] = pos; + pos = pos - that.wrapperW; + page++; + } + if (that.maxScrollX%that.wrapperW) that.pagesX[that.pagesX.length] = that.maxScrollX - that.pagesX[that.pagesX.length-1] + that.pagesX[that.pagesX.length-1]; + + pos = 0; + page = 0; + that.pagesY = []; + while (pos >= that.maxScrollY) { + that.pagesY[page] = pos; + pos = pos - that.wrapperH; + page++; + } + if (that.maxScrollY%that.wrapperH) that.pagesY[that.pagesY.length] = that.maxScrollY - that.pagesY[that.pagesY.length-1] + that.pagesY[that.pagesY.length-1]; + } + + // Prepare the scrollbars + that._scrollbar('h'); + that._scrollbar('v'); + + if (!that.zoomed) { + that.scroller.style[transitionDuration] = '0'; + that._resetPos(200); + } + }, + + scrollTo: function (x, y, time, relative) { + var that = this, + step = x, + i, l; + + that.stop(); + + if (!step.length) step = [{ x: x, y: y, time: time, relative: relative }]; + + for (i=0, l=step.length; i<l; i++) { + if (step[i].relative) { step[i].x = that.x - step[i].x; step[i].y = that.y - step[i].y; } + that.steps.push({ x: step[i].x, y: step[i].y, time: step[i].time || 0 }); + } + + that._startAni(); + }, + + scrollToElement: function (el, time) { + var that = this, pos; + el = el.nodeType ? el : that.scroller.querySelector(el); + if (!el) return; + + pos = that._offset(el); + pos.left += that.wrapperOffsetLeft; + pos.top += that.wrapperOffsetTop; + + pos.left = pos.left > 0 ? 0 : pos.left < that.maxScrollX ? that.maxScrollX : pos.left; + pos.top = pos.top > that.minScrollY ? that.minScrollY : pos.top < that.maxScrollY ? that.maxScrollY : pos.top; + time = time === undefined ? m.max(m.abs(pos.left)*2, m.abs(pos.top)*2) : time; + + that.scrollTo(pos.left, pos.top, time); + }, + + scrollToPage: function (pageX, pageY, time) { + var that = this, x, y; + + time = time === undefined ? 400 : time; + + if (that.options.onScrollStart) that.options.onScrollStart.call(that); + + if (that.options.snap) { + pageX = pageX == 'next' ? that.currPageX+1 : pageX == 'prev' ? that.currPageX-1 : pageX; + pageY = pageY == 'next' ? that.currPageY+1 : pageY == 'prev' ? that.currPageY-1 : pageY; + + pageX = pageX < 0 ? 0 : pageX > that.pagesX.length-1 ? that.pagesX.length-1 : pageX; + pageY = pageY < 0 ? 0 : pageY > that.pagesY.length-1 ? that.pagesY.length-1 : pageY; + + that.currPageX = pageX; + that.currPageY = pageY; + x = that.pagesX[pageX]; + y = that.pagesY[pageY]; + } else { + x = -that.wrapperW * pageX; + y = -that.wrapperH * pageY; + if (x < that.maxScrollX) x = that.maxScrollX; + if (y < that.maxScrollY) y = that.maxScrollY; + } + + that.scrollTo(x, y, time); + }, + + disable: function () { + this.stop(); + this._resetPos(0); + this.enabled = false; + + // If disabled after touchstart we make sure that there are no left over events + this._unbind(MOVE_EV); + this._unbind(END_EV); + this._unbind(CANCEL_EV); + }, + + enable: function () { + this.enabled = true; + }, + + stop: function () { + if (this.options.useTransition) this._unbind(TRNEND_EV); + else cancelFrame(this.aniTime); + this.steps = []; + this.moved = false; + this.animating = false; + }, + + zoom: function (x, y, scale, time) { + var that = this, + relScale = scale / that.scale; + + if (!that.options.useTransform) return; + + that.zoomed = true; + time = time === undefined ? 200 : time; + x = x - that.wrapperOffsetLeft - that.x; + y = y - that.wrapperOffsetTop - that.y; + that.x = x - x * relScale + that.x; + that.y = y - y * relScale + that.y; + + that.scale = scale; + that.refresh(); + + that.x = that.x > 0 ? 0 : that.x < that.maxScrollX ? that.maxScrollX : that.x; + that.y = that.y > that.minScrollY ? that.minScrollY : that.y < that.maxScrollY ? that.maxScrollY : that.y; + + that.scroller.style[transitionDuration] = time + 'ms'; + that.scroller.style[transform] = 'translate(' + that.x + 'px,' + that.y + 'px) scale(' + scale + ')' + translateZ; + that.zoomed = false; + }, + + isReady: function () { + return !this.moved && !this.zoomed && !this.animating; + } +}; + +function prefixStyle (style) { + if ( vendor === '' ) return style; + + style = style.charAt(0).toUpperCase() + style.substr(1); + return vendor + style; +} + +dummyStyle = null; // for the sake of it + +if (typeof exports !== 'undefined') exports.iScroll = iScroll; +else window.iScroll = iScroll; + +})(this, document); |