//>>built define("dojox/mobile/scrollable", [ "dojo/_base/kernel", "dojo/_base/connect", "dojo/_base/event", "dojo/_base/lang", "dojo/_base/window", "dojo/dom-class", "dojo/dom-construct", "dojo/dom-style", "./sniff" ], function(dojo, connect, event, lang, win, domClass, domConstruct, domStyle, has){ var dm = lang.getObject("dojox.mobile", true); /*===== // summary: // Utility for enabling touch scrolling capability. // description: // Mobile WebKit browsers do not allow scrolling inner DIVs. (You need // the two-finger operation to scroll them.) // That means you cannot have fixed-positioned header/footer bars. // To solve this issue, this module disables the browsers default scrolling // behavior, and re-builds its own scrolling machinery by handling touch // events. In this module, this.domNode has height "100%" and is fixed to // the window, and this.containerNode scrolls. If you place a bar outside // of this.containerNode, then it will be fixed-positioned while // this.containerNode is scrollable. // // This module has the following features: // - Scrolls inner DIVs vertically, horizontally, or both. // - Vertical and horizontal scroll bars. // - Flashes the scroll bars when a view is shown. // - Simulates the flick operation using animation. // - Respects header/footer bars if any. // // dojox.mobile.scrollable is a simple function object, which holds // several properties and functions in it. But if you transform it to a // dojo class, it can be used as a mix-in class for any custom dojo // widgets. dojox.mobile._ScrollableMixin is such a class. // // Also, it can be used even for non-dojo applications. In such cases, // several dojo APIs used in this module, such as dojo.connect, // dojo.create, etc., are re-defined so that the code works without dojo. // When in dojo, of course those re-defined functions are not necessary. // So, they are surrounded by the includeStart and includeEnd directives // so that they can be excluded from the build. // // If you use this module for non-dojo application, you need to explicitly // assign your outer fixed node and inner scrollable node to this.domNode // and this.containerNode respectively. // // Non-dojo application should capture the onorientationchange or // the onresize event and call resize() in the event handler. // // example: // Use this module from a non-dojo applicatoin: // | function onLoad(){ // | var scrollable = new dojox.mobile.scrollable(dojo, dojox); // | scrollable.init({ // | domNode: "outer", // id or node // | containerNode: "inner" // id or node // | }); // | } // | // |

// | Fixed Header // |

// |

// |

// | ... content ... // |

// |

// | =====*/ var scrollable = function(/*Object?*/dojo, /*Object?*/dojox){ this.fixedHeaderHeight = 0; // height of a fixed header this.fixedFooterHeight = 0; // height of a fixed footer this.isLocalFooter = false; // footer is view-local (as opposed to application-wide) this.scrollBar = true; // show scroll bar or not this.scrollDir = "v"; // v: vertical, h: horizontal, vh: both, f: flip this.weight = 0.6; // frictional drag this.fadeScrollBar = true; this.disableFlashScrollBar = false; this.threshold = 4; // drag threshold value in pixels this.constraint = true; // bounce back to the content area this.touchNode = null; // a node that will have touch event handlers this.isNested = false; // this scrollable's parent is also a scrollable this.dirLock = false; // disable the move handler if scroll starts in the unexpected direction this.height = ""; // explicitly specified height of this widget (ex. "300px") this.androidWorkaroud = true; // workaround input field jumping issue this.init = function(/*Object?*/params){ if(params){ for(var p in params){ if(params.hasOwnProperty(p)){ this[p] = ((p == "domNode" || p == "containerNode") && typeof params[p] == "string") ? win.doc.getElementById(params[p]) : params[p]; // mix-in params } } } this.touchNode = this.touchNode || this.containerNode; this._v = (this.scrollDir.indexOf("v") != -1); // vertical scrolling this._h = (this.scrollDir.indexOf("h") != -1); // horizontal scrolling this._f = (this.scrollDir == "f"); // flipping views this._ch = []; // connect handlers this._ch.push(connect.connect(this.touchNode, has("touch") ? "touchstart" : "onmousedown", this, "onTouchStart")); if(has("webkit")){ this._ch.push(connect.connect(this.domNode, "webkitAnimationEnd", this, "onFlickAnimationEnd")); this._ch.push(connect.connect(this.domNode, "webkitAnimationStart", this, "onFlickAnimationStart")); this._aw = this.androidWorkaroud && has("android") >= 2.2 && has("android") < 3; if(this._aw){ this._ch.push(connect.connect(win.global, "onresize", this, "onScreenSizeChanged")); this._ch.push(connect.connect(win.global, "onfocus", this, function(e){ if(this.containerNode.style.webkitTransform){ this.stopAnimation(); this.toTopLeft(); } })); this._sz = this.getScreenSize(); } // Creation of keyframes takes a little time. If they are created // in a lazy manner, a slight delay is noticeable when you start // scrolling for the first time. This is to create keyframes up front. for(var i = 0; i < 3; i++){ this.setKeyframes(null, null, i); } } // Workaround for iPhone flicker issue if(has("iphone")){ domStyle.set(this.containerNode, "webkitTransform", "translate3d(0,0,0)"); } this._speed = {x:0, y:0}; this._appFooterHeight = 0; if(this.isTopLevel() && !this.noResize){ this.resize(); } var _this = this; setTimeout(function(){ _this.flashScrollBar(); }, 600); }; this.isTopLevel = function(){ // subclass may want to override return true; }; this.cleanup = function(){ if(this._ch){ for(var i = 0; i < this._ch.length; i++){ connect.disconnect(this._ch[i]); } this._ch = null; } }; this.findDisp = function(/*DomNode*/node){ // summary: // Finds the currently displayed view node from my sibling nodes. if(!node.parentNode){ return null; } var nodes = node.parentNode.childNodes; for(var i = 0; i < nodes.length; i++){ var n = nodes[i]; if(n.nodeType === 1 && domClass.contains(n, "mblView") && n.style.display !== "none"){ return n; } } return node; }; this.getScreenSize = function(){ // summary: // Returns the dimensions of the browser window. return { h: win.global.innerHeight||win.doc.documentElement.clientHeight||win.doc.documentElement.offsetHeight, w: win.global.innerWidth||win.doc.documentElement.clientWidth||win.doc.documentElement.offsetWidth }; }; this.isKeyboardShown = function(e){ // summary: // Internal function for android workaround. // description: // Returns true if a virtual keyboard is shown. // Indirectly detects whether a virtual keyboard is shown or not by // examining the screen size. // TODO: need more reliable detection logic if(!this._sz){ return false; } var sz = this.getScreenSize(); return (sz.w * sz.h) / (this._sz.w * this._sz.h) < 0.8; }; this.disableScroll = function(/*Boolean*/v){ // summary: // Internal function for android workaround. // description: // Disables the touch scrolling and enables the browser's default // scrolling. if(this.disableTouchScroll === v || this.domNode.style.display === "none"){ return; } this.disableTouchScroll = v; this.scrollBar = !v; dm.disableHideAddressBar = dm.disableResizeAll = v; var of = v ? "visible" : "hidden"; domStyle.set(this.domNode, "overflow", of); domStyle.set(win.doc.documentElement, "overflow", of); domStyle.set(win.body(), "overflow", of); var c = this.containerNode; if(v){ if(!c.style.webkitTransform){ // stop animation when soft keyborad is shown before animation ends. // TODO: there might be a better way to wait for animation ending. this.stopAnimation(); this.toTopLeft(); } var mt = parseInt(c.style.marginTop) || 0; var h = c.offsetHeight + mt + this.fixedFooterHeight - this._appFooterHeight; domStyle.set(this.domNode, "height", h + "px"); this._cPos = { // store containerNode's position x: parseInt(c.style.left) || 0, y: parseInt(c.style.top) || 0 }; domStyle.set(c, { top: "0px", left: "0px" }); var a = win.doc.activeElement; // focused input field if(a){ // scrolling to show focused input field var at = 0; // top position of focused input field for(var n = a; n.tagName != "BODY"; n = n.offsetParent){ at += n.offsetTop; } var st = at + a.clientHeight + 10 - this.getScreenSize().h; // top postion of browser scroll bar if(st > 0){ win.body().scrollTop = st; } } }else{ if(this._cPos){ // restore containerNode's position domStyle.set(c, { top: this._cPos.y + "px", left: this._cPos.x + "px" }); this._cPos = null; } var tags = this.domNode.getElementsByTagName("*"); for(var i = 0; i < tags.length; i++){ tags[i].blur && tags[i].blur(); } // Call dojox.mobile.resizeAll if exists. dm.resizeAll && dm.resizeAll(); } }; this.onScreenSizeChanged = function(e){ // summary: // Internal function for android workaround. var sz = this.getScreenSize(); if(sz.w * sz.h > this._sz.w * this._sz.h){ this._sz = sz; // update the screen size } this.disableScroll(this.isKeyboardShown()); }; this.toTransform = function(e){ // summary: // Internal function for android workaround. var c = this.containerNode; if(c.offsetTop === 0 && c.offsetLeft === 0 || !c._webkitTransform){ return; } domStyle.set(c, { webkitTransform: c._webkitTransform, top: "0px", left: "0px" }); c._webkitTransform = null; }; this.toTopLeft = function(){ // summary: // Internal function for android workaround. var c = this.containerNode; if(!c.style.webkitTransform){ return; } // already converted to top/left c._webkitTransform = c.style.webkitTransform; var pos = this.getPos(); domStyle.set(c, { webkitTransform: "", top: pos.y + "px", left: pos.x + "px" }); }; this.resize = function(e){ // summary: // Adjusts the height of the widget. // description: // If the height property is 'inherit', the height is inherited // from its offset parent. If 'auto', the content height, which // could be smaller than the entire screen height, is used. If an // explicit height value (ex. "300px"), it is used as the new // height. If nothing is specified as the height property, from the // current top position of the widget to the bottom of the screen // will be the new height. // moved from init() to support dynamically added fixed bars this._appFooterHeight = (this.fixedFooterHeight && !this.isLocalFooter) ? this.fixedFooterHeight : 0; if(this.isLocalHeader){ this.containerNode.style.marginTop = this.fixedHeaderHeight + "px"; } // Get the top position. Same as dojo.position(node, true).y var top = 0; for(var n = this.domNode; n && n.tagName != "BODY"; n = n.offsetParent){ n = this.findDisp(n); // find the first displayed view node if(!n){ break; } top += n.offsetTop; } // adjust the height of this view var h, screenHeight = this.getScreenSize().h, dh = screenHeight - top - this._appFooterHeight; // default height if(this.height === "inherit"){ if(this.domNode.offsetParent){ h = this.domNode.offsetParent.offsetHeight + "px"; } }else if(this.height === "auto"){ var parent = this.domNode.offsetParent; if(parent){ this.domNode.style.height = "0px"; var parentRect = parent.getBoundingClientRect(), scrollableRect = this.domNode.getBoundingClientRect(), contentBottom = parentRect.bottom - this._appFooterHeight; if(scrollableRect.bottom >= contentBottom){ // use entire screen dh = screenHeight - (scrollableRect.top - parentRect.top) - this._appFooterHeight; }else{ // stretch to fill predefined area dh = contentBottom - scrollableRect.bottom; } } // content could be smaller than entire screen height var contentHeight = Math.max(this.domNode.scrollHeight, this.containerNode.scrollHeight); h = (contentHeight ? Math.min(contentHeight, dh) : dh) + "px"; }else if(this.height){ h = this.height; } if(!h){ h = dh + "px"; } if(h.charAt(0) !== "-" && // to ensure that h is not negative (e.g. "-10px") h !== "default"){ this.domNode.style.height = h; } // to ensure that the view is within a scrolling area when resized. this.onTouchEnd(); }; this.onFlickAnimationStart = function(e){ event.stop(e); }; this.onFlickAnimationEnd = function(e){ var an = e && e.animationName; if(an && an.indexOf("scrollableViewScroll2") === -1){ if(an.indexOf("scrollableViewScroll0") !== -1){ // scrollBarV domClass.remove(this._scrollBarNodeV, "mblScrollableScrollTo0"); }else if(an.indexOf("scrollableViewScroll1") !== -1){ // scrollBarH domClass.remove(this._scrollBarNodeH, "mblScrollableScrollTo1"); }else{ // fade or others if(this._scrollBarNodeV){ this._scrollBarNodeV.className = ""; } if(this._scrollBarNodeH){ this._scrollBarNodeH.className = ""; } } return; } if(e && e.srcElement){ event.stop(e); } this.stopAnimation(); if(this._bounce){ var _this = this; var bounce = _this._bounce; setTimeout(function(){ _this.slideTo(bounce, 0.3, "ease-out"); }, 0); _this._bounce = undefined; }else{ this.hideScrollBar(); this.removeCover(); if(this._aw){ this.toTopLeft(); } // android workaround } }; this.isFormElement = function(node){ if(node && node.nodeType !== 1){ node = node.parentNode; } if(!node || node.nodeType !== 1){ return false; } var t = node.tagName; return (t === "SELECT" || t === "INPUT" || t === "TEXTAREA" || t === "BUTTON"); }; this.onTouchStart = function(e){ if(this.disableTouchScroll){ return; } if(this._conn && (new Date()).getTime() - this.startTime < 500){ return; // ignore successive onTouchStart calls } if(!this._conn){ this._conn = []; this._conn.push(connect.connect(win.doc, has("touch") ? "touchmove" : "onmousemove", this, "onTouchMove")); this._conn.push(connect.connect(win.doc, has("touch") ? "touchend" : "onmouseup", this, "onTouchEnd")); } this._aborted = false; if(domClass.contains(this.containerNode, "mblScrollableScrollTo2")){ this.abort(); }else{ // reset scrollbar class especially for reseting fade-out animation if(this._scrollBarNodeV){ this._scrollBarNodeV.className = ""; } if(this._scrollBarNodeH){ this._scrollBarNodeH.className = ""; } } if(this._aw){ this.toTransform(e); } // android workaround this.touchStartX = e.touches ? e.touches[0].pageX : e.clientX; this.touchStartY = e.touches ? e.touches[0].pageY : e.clientY; this.startTime = (new Date()).getTime(); this.startPos = this.getPos(); this._dim = this.getDim(); this._time = [0]; this._posX = [this.touchStartX]; this._posY = [this.touchStartY]; this._locked = false; if(!this.isFormElement(e.target) && !this.isNested){ event.stop(e); } }; this.onTouchMove = function(e){ if(this._locked){ return; } var x = e.touches ? e.touches[0].pageX : e.clientX; var y = e.touches ? e.touches[0].pageY : e.clientY; var dx = x - this.touchStartX; var dy = y - this.touchStartY; var to = {x:this.startPos.x + dx, y:this.startPos.y + dy}; var dim = this._dim; dx = Math.abs(dx); dy = Math.abs(dy); if(this._time.length == 1){ // the first TouchMove after TouchStart if(this.dirLock){ if(this._v && !this._h && dx >= this.threshold && dx >= dy || (this._h || this._f) && !this._v && dy >= this.threshold && dy >= dx){ this._locked = true; return; } } if(this._v && Math.abs(dy) < this.threshold || (this._h || this._f) && Math.abs(dx) < this.threshold){ return; } this.addCover(); this.showScrollBar(); } var weight = this.weight; if(this._v && this.constraint){ if(to.y > 0){ // content is below the screen area to.y = Math.round(to.y * weight); }else if(to.y < -dim.o.h){ // content is above the screen area if(dim.c.h < dim.d.h){ // content is shorter than display to.y = Math.round(to.y * weight); }else{ to.y = -dim.o.h - Math.round((-dim.o.h - to.y) * weight); } } } if((this._h || this._f) && this.constraint){ if(to.x > 0){ to.x = Math.round(to.x * weight); }else if(to.x < -dim.o.w){ if(dim.c.w < dim.d.w){ to.x = Math.round(to.x * weight); }else{ to.x = -dim.o.w - Math.round((-dim.o.w - to.x) * weight); } } } this.scrollTo(to); var max = 10; var n = this._time.length; // # of samples if(n >= 2){ // Check the direction of the finger move. // If the direction has been changed, discard the old data. var d0, d1; if(this._v && !this._h){ d0 = this._posY[n - 1] - this._posY[n - 2]; d1 = y - this._posY[n - 1]; }else if(!this._v && this._h){ d0 = this._posX[n - 1] - this._posX[n - 2]; d1 = x - this._posX[n - 1]; } if(d0 * d1 < 0){ // direction changed // leave only the latest data this._time = [this._time[n - 1]]; this._posX = [this._posX[n - 1]]; this._posY = [this._posY[n - 1]]; n = 1; } } if(n == max){ this._time.shift(); this._posX.shift(); this._posY.shift(); } this._time.push((new Date()).getTime() - this.startTime); this._posX.push(x); this._posY.push(y); }; this.onTouchEnd = function(e){ if(this._locked){ return; } var speed = this._speed = {x:0, y:0}; var dim = this._dim; var pos = this.getPos(); var to = {}; // destination if(e){ if(!this._conn){ return; } // if we get onTouchEnd without onTouchStart, ignore it. for(var i = 0; i < this._conn.length; i++){ connect.disconnect(this._conn[i]); } this._conn = null; var n = this._time.length; // # of samples var clicked = false; if(!this._aborted){ if(n <= 1){ clicked = true; }else if(n == 2 && Math.abs(this._posY[1] - this._posY[0]) < 4 && has("touch")){ // for desktop browsers, posY could be the same, since we're using clientY, see onTouchMove() clicked = true; } } var isFormElem = this.isFormElement(e.target); if(clicked && !isFormElem){ // clicked, not dragged or flicked this.hideScrollBar(); this.removeCover(); if(has("touch")){ var elem = e.target; if(elem.nodeType != 1){ elem = elem.parentNode; } var ev = win.doc.createEvent("MouseEvents"); ev.initMouseEvent("click", true, true, win.global, 1, e.screenX, e.screenY, e.clientX, e.clientY); setTimeout(function(){ elem.dispatchEvent(ev); }, 0); } return; }else if(this._aw && clicked && isFormElem){ // clicked input fields this.hideScrollBar(); this.toTopLeft(); return; } speed = this._speed = this.getSpeed(); }else{ if(pos.x == 0 && pos.y == 0){ return; } // initializing dim = this.getDim(); } if(this._v){ to.y = pos.y + speed.y; } if(this._h || this._f){ to.x = pos.x + speed.x; } this.adjustDestination(to, pos); if(this.scrollDir == "v" && dim.c.h < dim.d.h){ // content is shorter than display this.slideTo({y:0}, 0.3, "ease-out"); // go back to the top return; }else if(this.scrollDir == "h" && dim.c.w < dim.d.w){ // content is narrower than display this.slideTo({x:0}, 0.3, "ease-out"); // go back to the left return; }else if(this._v && this._h && dim.c.h < dim.d.h && dim.c.w < dim.d.w){ this.slideTo({x:0, y:0}, 0.3, "ease-out"); // go back to the top-left return; } var duration, easing = "ease-out"; var bounce = {}; if(this._v && this.constraint){ if(to.y > 0){ // going down. bounce back to the top. if(pos.y > 0){ // started from below the screen area. return quickly. duration = 0.3; to.y = 0; }else{ to.y = Math.min(to.y, 20); easing = "linear"; bounce.y = 0; } }else if(-speed.y > dim.o.h - (-pos.y)){ // going up. bounce back to the bottom. if(pos.y < -dim.o.h){ // started from above the screen top. return quickly. duration = 0.3; to.y = dim.c.h <= dim.d.h ? 0 : -dim.o.h; // if shorter, move to 0 }else{ to.y = Math.max(to.y, -dim.o.h - 20); easing = "linear"; bounce.y = -dim.o.h; } } } if((this._h || this._f) && this.constraint){ if(to.x > 0){ // going right. bounce back to the left. if(pos.x > 0){ // started from right of the screen area. return quickly. duration = 0.3; to.x = 0; }else{ to.x = Math.min(to.x, 20); easing = "linear"; bounce.x = 0; } }else if(-speed.x > dim.o.w - (-pos.x)){ // going left. bounce back to the right. if(pos.x < -dim.o.w){ // started from left of the screen top. return quickly. duration = 0.3; to.x = dim.c.w <= dim.d.w ? 0 : -dim.o.w; // if narrower, move to 0 }else{ to.x = Math.max(to.x, -dim.o.w - 20); easing = "linear"; bounce.x = -dim.o.w; } } } this._bounce = (bounce.x !== undefined || bounce.y !== undefined) ? bounce : undefined; if(duration === undefined){ var distance, velocity; if(this._v && this._h){ velocity = Math.sqrt(speed.x+speed.x + speed.y*speed.y); distance = Math.sqrt(Math.pow(to.y - pos.y, 2) + Math.pow(to.x - pos.x, 2)); }else if(this._v){ velocity = speed.y; distance = to.y - pos.y; }else if(this._h){ velocity = speed.x; distance = to.x - pos.x; } if(distance === 0 && !e){ return; } // #13154 duration = velocity !== 0 ? Math.abs(distance / velocity) : 0.01; // time = distance / velocity } this.slideTo(to, duration, easing); }; this.adjustDestination = function(to, pos){ // subclass may want to implement }; this.abort = function(){ this.scrollTo(this.getPos()); this.stopAnimation(); this._aborted = true; }; this.stopAnimation = function(){ // stop the currently running animation domClass.remove(this.containerNode, "mblScrollableScrollTo2"); if(has("android")){ domStyle.set(this.containerNode, "webkitAnimationDuration", "0s"); // workaround for android screen flicker problem } if(this._scrollBarV){ this._scrollBarV.className = ""; } if(this._scrollBarH){ this._scrollBarH.className = ""; } }; this.getSpeed = function(){ var x = 0, y = 0, n = this._time.length; // if the user holds the mouse or finger more than 0.5 sec, do not move. if(n >= 2 && (new Date()).getTime() - this.startTime - this._time[n - 1] < 500){ var dy = this._posY[n - (n > 3 ? 2 : 1)] - this._posY[(n - 6) >= 0 ? n - 6 : 0]; var dx = this._posX[n - (n > 3 ? 2 : 1)] - this._posX[(n - 6) >= 0 ? n - 6 : 0]; var dt = this._time[n - (n > 3 ? 2 : 1)] - this._time[(n - 6) >= 0 ? n - 6 : 0]; y = this.calcSpeed(dy, dt); x = this.calcSpeed(dx, dt); } return {x:x, y:y}; }; this.calcSpeed = function(/*Number*/d, /*Number*/t){ return Math.round(d / t * 100) * 4; }; this.scrollTo = function(/*Object*/to, /*Boolean?*/doNotMoveScrollBar, /*DomNode?*/node){ // to: {x, y} // summary: // Scrolls to the given position. var s = (node || this.containerNode).style; if(has("webkit")){ s.webkitTransform = this.makeTranslateStr(to); }else{ if(this._v){ s.top = to.y + "px"; } if(this._h || this._f){ s.left = to.x + "px"; } } if(!doNotMoveScrollBar){ this.scrollScrollBarTo(this.calcScrollBarPos(to)); } }; this.slideTo = function(/*Object*/to, /*Number*/duration, /*String*/easing){ // summary: // Scrolls to the given position with slide animation. this._runSlideAnimation(this.getPos(), to, duration, easing, this.containerNode, 2); this.slideScrollBarTo(to, duration, easing); }; this.makeTranslateStr = function(to){ var y = this._v && typeof to.y == "number" ? to.y+"px" : "0px"; var x = (this._h||this._f) && typeof to.x == "number" ? to.x+"px" : "0px"; return dm.hasTranslate3d ? "translate3d("+x+","+y+",0px)" : "translate("+x+","+y+")"; }; this.getPos = function(){ // summary: // Get the top position in the midst of animation if(has("webkit")){ var m = win.doc.defaultView.getComputedStyle(this.containerNode, '')["-webkit-transform"]; if(m && m.indexOf("matrix") === 0){ var arr = m.split(/[,\s\)]+/); return {y:arr[5] - 0, x:arr[4] - 0}; } return {x:0, y:0}; }else{ // this.containerNode.offsetTop does not work here, // because it adds the height of the top margin. var y = parseInt(this.containerNode.style.top) || 0; return {y:y, x:this.containerNode.offsetLeft}; } }; this.getDim = function(){ var d = {}; // content width/height d.c = {h:this.containerNode.offsetHeight, w:this.containerNode.offsetWidth}; // view width/height d.v = {h:this.domNode.offsetHeight + this._appFooterHeight, w:this.domNode.offsetWidth}; // display width/height d.d = {h:d.v.h - this.fixedHeaderHeight - this.fixedFooterHeight, w:d.v.w}; // overflowed width/height d.o = {h:d.c.h - d.v.h + this.fixedHeaderHeight + this.fixedFooterHeight, w:d.c.w - d.v.w}; return d; }; this.showScrollBar = function(){ if(!this.scrollBar){ return; } var dim = this._dim; if(this.scrollDir == "v" && dim.c.h <= dim.d.h){ return; } if(this.scrollDir == "h" && dim.c.w <= dim.d.w){ return; } if(this._v && this._h && dim.c.h <= dim.d.h && dim.c.w <= dim.d.w){ return; } var createBar = function(self, dir){ var bar = self["_scrollBarNode" + dir]; if(!bar){ var wrapper = domConstruct.create("div", null, self.domNode); var props = { position: "absolute", overflow: "hidden" }; if(dir == "V"){ props.right = "2px"; props.width = "5px"; }else{ props.bottom = (self.isLocalFooter ? self.fixedFooterHeight : 0) + 2 + "px"; props.height = "5px"; } domStyle.set(wrapper, props); wrapper.className = "mblScrollBarWrapper"; self["_scrollBarWrapper"+dir] = wrapper; bar = domConstruct.create("div", null, wrapper); domStyle.set(bar, { opacity: 0.6, position: "absolute", backgroundColor: "#606060", fontSize: "1px", webkitBorderRadius: "2px", MozBorderRadius: "2px", webkitTransformOrigin: "0 0", zIndex: 2147483647 // max of signed 32-bit integer }); domStyle.set(bar, dir == "V" ? {width: "5px"} : {height: "5px"}); self["_scrollBarNode" + dir] = bar; } return bar; }; if(this._v && !this._scrollBarV){ this._scrollBarV = createBar(this, "V"); } if(this._h && !this._scrollBarH){ this._scrollBarH = createBar(this, "H"); } this.resetScrollBar(); }; this.hideScrollBar = function(){ var fadeRule; if(this.fadeScrollBar && has("webkit")){ if(!dm._fadeRule){ var node = domConstruct.create("style", null, win.doc.getElementsByTagName("head")[0]); node.textContent = ".mblScrollableFadeScrollBar{"+ " -webkit-animation-duration: 1s;"+ " -webkit-animation-name: scrollableViewFadeScrollBar;}"+ "@-webkit-keyframes scrollableViewFadeScrollBar{"+ " from { opacity: 0.6; }"+ " to { opacity: 0; }}"; dm._fadeRule = node.sheet.cssRules[1]; } fadeRule = dm._fadeRule; } if(!this.scrollBar){ return; } var f = function(bar, self){ domStyle.set(bar, { opacity: 0, webkitAnimationDuration: "" }); if(self._aw){ // android workaround bar.style.webkitTransform = ""; }else{ bar.className = "mblScrollableFadeScrollBar"; } }; if(this._scrollBarV){ f(this._scrollBarV, this); this._scrollBarV = null; } if(this._scrollBarH){ f(this._scrollBarH, this); this._scrollBarH = null; } }; this.calcScrollBarPos = function(/*Object*/to){ // to: {x, y} var pos = {}; var dim = this._dim; var f = function(wrapperH, barH, t, d, c){ var y = Math.round((d - barH - 8) / (d - c) * t); if(y < -barH + 5){ y = -barH + 5; } if(y > wrapperH - 5){ y = wrapperH - 5; } return y; }; if(typeof to.y == "number" && this._scrollBarV){ pos.y = f(this._scrollBarWrapperV.offsetHeight, this._scrollBarV.offsetHeight, to.y, dim.d.h, dim.c.h); } if(typeof to.x == "number" && this._scrollBarH){ pos.x = f(this._scrollBarWrapperH.offsetWidth, this._scrollBarH.offsetWidth, to.x, dim.d.w, dim.c.w); } return pos; }; this.scrollScrollBarTo = function(/*Object*/to){ // to: {x, y} if(!this.scrollBar){ return; } if(this._v && this._scrollBarV && typeof to.y == "number"){ if(has("webkit")){ this._scrollBarV.style.webkitTransform = this.makeTranslateStr({y:to.y}); }else{ this._scrollBarV.style.top = to.y + "px"; } } if(this._h && this._scrollBarH && typeof to.x == "number"){ if(has("webkit")){ this._scrollBarH.style.webkitTransform = this.makeTranslateStr({x:to.x}); }else{ this._scrollBarH.style.left = to.x + "px"; } } }; this.slideScrollBarTo = function(/*Object*/to, /*Number*/duration, /*String*/easing){ if(!this.scrollBar){ return; } var fromPos = this.calcScrollBarPos(this.getPos()); var toPos = this.calcScrollBarPos(to); if(this._v && this._scrollBarV){ this._runSlideAnimation({y:fromPos.y}, {y:toPos.y}, duration, easing, this._scrollBarV, 0); } if(this._h && this._scrollBarH){ this._runSlideAnimation({x:fromPos.x}, {x:toPos.x}, duration, easing, this._scrollBarH, 1); } }; this._runSlideAnimation = function(/*Object*/from, /*Object*/to, /*Number*/duration, /*String*/easing, node, idx){ // idx: 0:scrollbarV, 1:scrollbarH, 2:content if(has("webkit")){ this.setKeyframes(from, to, idx); domStyle.set(node, { webkitAnimationDuration: duration + "s", webkitAnimationTimingFunction: easing }); domClass.add(node, "mblScrollableScrollTo"+idx); if(idx == 2){ this.scrollTo(to, true, node); }else{ this.scrollScrollBarTo(to); } }else if(dojo.fx && dojo.fx.easing && duration){ // If you want to support non-webkit browsers, // your application needs to load necessary modules as follows: // // | dojo.require("dojo.fx"); // | dojo.require("dojo.fx.easing"); // // This module itself does not make dependency on them. var s = dojo.fx.slideTo({ node: node, duration: duration*1000, left: to.x, top: to.y, easing: (easing == "ease-out") ? dojo.fx.easing.quadOut : dojo.fx.easing.linear }).play(); if(idx == 2){ connect.connect(s, "onEnd", this, "onFlickAnimationEnd"); } }else{ // directly jump to the destination without animation if(idx == 2){ this.scrollTo(to, false, node); this.onFlickAnimationEnd(); }else{ this.scrollScrollBarTo(to); } } }; this.resetScrollBar = function(){ // summary: // Resets the scroll bar length, position, etc. var f = function(wrapper, bar, d, c, hd, v){ if(!bar){ return; } var props = {}; props[v ? "top" : "left"] = hd + 4 + "px"; // +4 is for top or left margin var t = (d - 8) <= 0 ? 1 : d - 8; props[v ? "height" : "width"] = t + "px"; domStyle.set(wrapper, props); var l = Math.round(d * d / c); // scroll bar length l = Math.min(Math.max(l - 8, 5), t); // -8 is for margin for both ends bar.style[v ? "height" : "width"] = l + "px"; domStyle.set(bar, {"opacity": 0.6}); }; var dim = this.getDim(); f(this._scrollBarWrapperV, this._scrollBarV, dim.d.h, dim.c.h, this.fixedHeaderHeight, true); f(this._scrollBarWrapperH, this._scrollBarH, dim.d.w, dim.c.w, 0); this.createMask(); }; this.createMask = function(){ // summary: // Creates a mask for a scroll bar edge. // description: // This function creates a mask that hides corners of one scroll // bar edge to make it round edge. The other side of the edge is // always visible and round shaped with the border-radius style. if(!has("webkit")){ return; } var ctx; if(this._scrollBarWrapperV){ var h = this._scrollBarWrapperV.offsetHeight; ctx = win.doc.getCSSCanvasContext("2d", "scrollBarMaskV", 5, h); ctx.fillStyle = "rgba(0,0,0,0.5)"; ctx.fillRect(1, 0, 3, 2); ctx.fillRect(0, 1, 5, 1); ctx.fillRect(0, h - 2, 5, 1); ctx.fillRect(1, h - 1, 3, 2); ctx.fillStyle = "rgb(0,0,0)"; ctx.fillRect(0, 2, 5, h - 4); this._scrollBarWrapperV.style.webkitMaskImage = "-webkit-canvas(scrollBarMaskV)"; } if(this._scrollBarWrapperH){ var w = this._scrollBarWrapperH.offsetWidth; ctx = win.doc.getCSSCanvasContext("2d", "scrollBarMaskH", w, 5); ctx.fillStyle = "rgba(0,0,0,0.5)"; ctx.fillRect(0, 1, 2, 3); ctx.fillRect(1, 0, 1, 5); ctx.fillRect(w - 2, 0, 1, 5); ctx.fillRect(w - 1, 1, 2, 3); ctx.fillStyle = "rgb(0,0,0)"; ctx.fillRect(2, 0, w - 4, 5); this._scrollBarWrapperH.style.webkitMaskImage = "-webkit-canvas(scrollBarMaskH)"; } }; this.flashScrollBar = function(){ if(this.disableFlashScrollBar || !this.domNode){ return; } this._dim = this.getDim(); if(this._dim.d.h <= 0){ return; } // dom is not ready this.showScrollBar(); var _this = this; setTimeout(function(){ _this.hideScrollBar(); }, 300); }; this.addCover = function(){ if(!has("touch") && !this.noCover){ if(!this._cover){ this._cover = domConstruct.create("div", null, win.doc.body); domStyle.set(this._cover, { backgroundColor: "#ffff00", opacity: 0, position: "absolute", top: "0px", left: "0px", width: "100%", height: "100%", zIndex: 2147483647 // max of signed 32-bit integer }); this._ch.push(connect.connect(this._cover, has("touch") ? "touchstart" : "onmousedown", this, "onTouchEnd")); }else{ this._cover.style.display = ""; } this.setSelectable(this._cover, false); this.setSelectable(this.domNode, false); } }; this.removeCover = function(){ if(!has("touch") && this._cover){ this._cover.style.display = "none"; this.setSelectable(this._cover, true); this.setSelectable(this.domNode, true); } }; this.setKeyframes = function(/*Object*/from, /*Object*/to, /*Number*/idx){ if(!dm._rule){ dm._rule = []; } // idx: 0:scrollbarV, 1:scrollbarH, 2:content if(!dm._rule[idx]){ var node = domConstruct.create("style", null, win.doc.getElementsByTagName("head")[0]); node.textContent = ".mblScrollableScrollTo"+idx+"{-webkit-animation-name: scrollableViewScroll"+idx+";}"+ "@-webkit-keyframes scrollableViewScroll"+idx+"{}"; dm._rule[idx] = node.sheet.cssRules[1]; } var rule = dm._rule[idx]; if(rule){ if(from){ rule.deleteRule("from"); rule.insertRule("from { -webkit-transform: "+this.makeTranslateStr(from)+"; }"); } if(to){ if(to.x === undefined){ to.x = from.x; } if(to.y === undefined){ to.y = from.y; } rule.deleteRule("to"); rule.insertRule("to { -webkit-transform: "+this.makeTranslateStr(to)+"; }"); } } }; this.setSelectable = function(node, selectable){ // dojo.setSelectable has dependency on dojo.query. Re-define our own. node.style.KhtmlUserSelect = selectable ? "auto" : "none"; node.style.MozUserSelect = selectable ? "" : "none"; node.onselectstart = selectable ? null : function(){return false;}; if(has("ie")){ node.unselectable = selectable ? "" : "on"; var nodes = node.getElementsByTagName("*"); for(var i = 0; i < nodes.length; i++){ nodes[i].unselectable = selectable ? "" : "on"; } } }; // feature detection if(has("webkit")){ var elem = win.doc.createElement("div"); elem.style.webkitTransform = "translate3d(0px,1px,0px)"; win.doc.documentElement.appendChild(elem); var v = win.doc.defaultView.getComputedStyle(elem, '')["-webkit-transform"]; dm.hasTranslate3d = v && v.indexOf("matrix") === 0; win.doc.documentElement.removeChild(elem); } }; dm.scrollable = scrollable; // for backward compatibility return scrollable; });