1107 lines
35 KiB
JavaScript
1107 lines
35 KiB
JavaScript
//>>built
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define("dojox/mobile/scrollable", [
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"dojo/_base/kernel",
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"dojo/_base/connect",
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"dojo/_base/event",
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"dojo/_base/lang",
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"dojo/_base/window",
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"dojo/dom-class",
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"dojo/dom-construct",
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"dojo/dom-style",
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"./sniff"
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], function(dojo, connect, event, lang, win, domClass, domConstruct, domStyle, has){
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var dm = lang.getObject("dojox.mobile", true);
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/*=====
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// summary:
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// Utility for enabling touch scrolling capability.
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// description:
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// Mobile WebKit browsers do not allow scrolling inner DIVs. (You need
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// the two-finger operation to scroll them.)
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// That means you cannot have fixed-positioned header/footer bars.
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// To solve this issue, this module disables the browsers default scrolling
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// behavior, and re-builds its own scrolling machinery by handling touch
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// events. In this module, this.domNode has height "100%" and is fixed to
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// the window, and this.containerNode scrolls. If you place a bar outside
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// of this.containerNode, then it will be fixed-positioned while
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// this.containerNode is scrollable.
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//
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// This module has the following features:
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// - Scrolls inner DIVs vertically, horizontally, or both.
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// - Vertical and horizontal scroll bars.
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// - Flashes the scroll bars when a view is shown.
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// - Simulates the flick operation using animation.
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// - Respects header/footer bars if any.
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//
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// dojox.mobile.scrollable is a simple function object, which holds
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// several properties and functions in it. But if you transform it to a
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// dojo class, it can be used as a mix-in class for any custom dojo
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// widgets. dojox.mobile._ScrollableMixin is such a class.
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//
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// Also, it can be used even for non-dojo applications. In such cases,
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// several dojo APIs used in this module, such as dojo.connect,
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// dojo.create, etc., are re-defined so that the code works without dojo.
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// When in dojo, of course those re-defined functions are not necessary.
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// So, they are surrounded by the includeStart and includeEnd directives
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// so that they can be excluded from the build.
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//
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// If you use this module for non-dojo application, you need to explicitly
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// assign your outer fixed node and inner scrollable node to this.domNode
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// and this.containerNode respectively.
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//
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// Non-dojo application should capture the onorientationchange or
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// the onresize event and call resize() in the event handler.
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//
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// example:
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// Use this module from a non-dojo applicatoin:
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// | function onLoad(){
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// | var scrollable = new dojox.mobile.scrollable(dojo, dojox);
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// | scrollable.init({
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// | domNode: "outer", // id or node
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// | containerNode: "inner" // id or node
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// | });
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// | }
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// | <body onload="onLoad()">
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// | <h1 id="hd1" style="position:relative;width:100%;z-index:1;">
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// | Fixed Header
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// | </h1>
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// | <div id="outer" style="position:relative;height:100%;overflow:hidden;">
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// | <div id="inner" style="position:absolute;width:100%;">
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// | ... content ...
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// | </div>
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// | </div>
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// | </body>
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=====*/
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var scrollable = function(/*Object?*/dojo, /*Object?*/dojox){
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this.fixedHeaderHeight = 0; // height of a fixed header
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this.fixedFooterHeight = 0; // height of a fixed footer
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this.isLocalFooter = false; // footer is view-local (as opposed to application-wide)
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this.scrollBar = true; // show scroll bar or not
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this.scrollDir = "v"; // v: vertical, h: horizontal, vh: both, f: flip
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this.weight = 0.6; // frictional drag
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this.fadeScrollBar = true;
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this.disableFlashScrollBar = false;
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this.threshold = 4; // drag threshold value in pixels
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this.constraint = true; // bounce back to the content area
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this.touchNode = null; // a node that will have touch event handlers
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this.isNested = false; // this scrollable's parent is also a scrollable
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this.dirLock = false; // disable the move handler if scroll starts in the unexpected direction
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this.height = ""; // explicitly specified height of this widget (ex. "300px")
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this.androidWorkaroud = true; // workaround input field jumping issue
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this.init = function(/*Object?*/params){
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if(params){
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for(var p in params){
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if(params.hasOwnProperty(p)){
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this[p] = ((p == "domNode" || p == "containerNode") && typeof params[p] == "string") ?
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win.doc.getElementById(params[p]) : params[p]; // mix-in params
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}
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}
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}
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this.touchNode = this.touchNode || this.containerNode;
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this._v = (this.scrollDir.indexOf("v") != -1); // vertical scrolling
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this._h = (this.scrollDir.indexOf("h") != -1); // horizontal scrolling
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this._f = (this.scrollDir == "f"); // flipping views
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this._ch = []; // connect handlers
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this._ch.push(connect.connect(this.touchNode,
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has("touch") ? "touchstart" : "onmousedown", this, "onTouchStart"));
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if(has("webkit")){
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this._ch.push(connect.connect(this.domNode, "webkitAnimationEnd", this, "onFlickAnimationEnd"));
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this._ch.push(connect.connect(this.domNode, "webkitAnimationStart", this, "onFlickAnimationStart"));
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this._aw = this.androidWorkaroud &&
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has("android") >= 2.2 && has("android") < 3;
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if(this._aw){
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this._ch.push(connect.connect(win.global, "onresize", this, "onScreenSizeChanged"));
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this._ch.push(connect.connect(win.global, "onfocus", this, function(e){
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if(this.containerNode.style.webkitTransform){
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this.stopAnimation();
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this.toTopLeft();
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}
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}));
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this._sz = this.getScreenSize();
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}
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// Creation of keyframes takes a little time. If they are created
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// in a lazy manner, a slight delay is noticeable when you start
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// scrolling for the first time. This is to create keyframes up front.
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for(var i = 0; i < 3; i++){
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this.setKeyframes(null, null, i);
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}
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}
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// Workaround for iPhone flicker issue
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if(has("iphone")){
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domStyle.set(this.containerNode, "webkitTransform", "translate3d(0,0,0)");
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}
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this._speed = {x:0, y:0};
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this._appFooterHeight = 0;
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if(this.isTopLevel() && !this.noResize){
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this.resize();
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}
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var _this = this;
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setTimeout(function(){
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_this.flashScrollBar();
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}, 600);
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};
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this.isTopLevel = function(){
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// subclass may want to override
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return true;
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};
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this.cleanup = function(){
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if(this._ch){
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for(var i = 0; i < this._ch.length; i++){
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connect.disconnect(this._ch[i]);
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}
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this._ch = null;
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}
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};
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this.findDisp = function(/*DomNode*/node){
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// summary:
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// Finds the currently displayed view node from my sibling nodes.
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if(!node.parentNode){ return null; }
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var nodes = node.parentNode.childNodes;
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for(var i = 0; i < nodes.length; i++){
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var n = nodes[i];
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if(n.nodeType === 1 && domClass.contains(n, "mblView") && n.style.display !== "none"){
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return n;
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}
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}
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return node;
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};
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this.getScreenSize = function(){
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// summary:
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// Returns the dimensions of the browser window.
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return {
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h: win.global.innerHeight||win.doc.documentElement.clientHeight||win.doc.documentElement.offsetHeight,
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w: win.global.innerWidth||win.doc.documentElement.clientWidth||win.doc.documentElement.offsetWidth
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};
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};
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this.isKeyboardShown = function(e){
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// summary:
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// Internal function for android workaround.
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// description:
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// Returns true if a virtual keyboard is shown.
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// Indirectly detects whether a virtual keyboard is shown or not by
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// examining the screen size.
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// TODO: need more reliable detection logic
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if(!this._sz){ return false; }
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var sz = this.getScreenSize();
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return (sz.w * sz.h) / (this._sz.w * this._sz.h) < 0.8;
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};
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this.disableScroll = function(/*Boolean*/v){
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// summary:
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// Internal function for android workaround.
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// description:
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// Disables the touch scrolling and enables the browser's default
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// scrolling.
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if(this.disableTouchScroll === v || this.domNode.style.display === "none"){ return; }
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this.disableTouchScroll = v;
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this.scrollBar = !v;
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dm.disableHideAddressBar = dm.disableResizeAll = v;
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var of = v ? "visible" : "hidden";
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domStyle.set(this.domNode, "overflow", of);
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domStyle.set(win.doc.documentElement, "overflow", of);
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domStyle.set(win.body(), "overflow", of);
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var c = this.containerNode;
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if(v){
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if(!c.style.webkitTransform){
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// stop animation when soft keyborad is shown before animation ends.
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// TODO: there might be a better way to wait for animation ending.
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this.stopAnimation();
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this.toTopLeft();
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}
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var mt = parseInt(c.style.marginTop) || 0;
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var h = c.offsetHeight + mt + this.fixedFooterHeight - this._appFooterHeight;
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domStyle.set(this.domNode, "height", h + "px");
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this._cPos = { // store containerNode's position
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x: parseInt(c.style.left) || 0,
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y: parseInt(c.style.top) || 0
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};
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domStyle.set(c, {
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top: "0px",
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left: "0px"
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});
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var a = win.doc.activeElement; // focused input field
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if(a){ // scrolling to show focused input field
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var at = 0; // top position of focused input field
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for(var n = a; n.tagName != "BODY"; n = n.offsetParent){
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at += n.offsetTop;
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}
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var st = at + a.clientHeight + 10 - this.getScreenSize().h; // top postion of browser scroll bar
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if(st > 0){
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win.body().scrollTop = st;
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}
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}
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}else{
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if(this._cPos){ // restore containerNode's position
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domStyle.set(c, {
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top: this._cPos.y + "px",
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left: this._cPos.x + "px"
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});
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this._cPos = null;
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}
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var tags = this.domNode.getElementsByTagName("*");
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for(var i = 0; i < tags.length; i++){
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tags[i].blur && tags[i].blur();
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}
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// Call dojox.mobile.resizeAll if exists.
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dm.resizeAll && dm.resizeAll();
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}
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};
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this.onScreenSizeChanged = function(e){
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// summary:
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// Internal function for android workaround.
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var sz = this.getScreenSize();
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if(sz.w * sz.h > this._sz.w * this._sz.h){
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this._sz = sz; // update the screen size
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}
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this.disableScroll(this.isKeyboardShown());
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};
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this.toTransform = function(e){
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// summary:
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// Internal function for android workaround.
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var c = this.containerNode;
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if(c.offsetTop === 0 && c.offsetLeft === 0 || !c._webkitTransform){ return; }
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domStyle.set(c, {
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webkitTransform: c._webkitTransform,
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top: "0px",
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left: "0px"
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});
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c._webkitTransform = null;
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};
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this.toTopLeft = function(){
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// summary:
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// Internal function for android workaround.
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var c = this.containerNode;
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if(!c.style.webkitTransform){ return; } // already converted to top/left
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c._webkitTransform = c.style.webkitTransform;
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var pos = this.getPos();
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domStyle.set(c, {
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webkitTransform: "",
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top: pos.y + "px",
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left: pos.x + "px"
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});
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};
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this.resize = function(e){
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// summary:
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// Adjusts the height of the widget.
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// description:
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// If the height property is 'inherit', the height is inherited
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// from its offset parent. If 'auto', the content height, which
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// could be smaller than the entire screen height, is used. If an
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// explicit height value (ex. "300px"), it is used as the new
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// height. If nothing is specified as the height property, from the
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// current top position of the widget to the bottom of the screen
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// will be the new height.
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// moved from init() to support dynamically added fixed bars
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this._appFooterHeight = (this.fixedFooterHeight && !this.isLocalFooter) ?
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this.fixedFooterHeight : 0;
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if(this.isLocalHeader){
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this.containerNode.style.marginTop = this.fixedHeaderHeight + "px";
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}
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// Get the top position. Same as dojo.position(node, true).y
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var top = 0;
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for(var n = this.domNode; n && n.tagName != "BODY"; n = n.offsetParent){
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n = this.findDisp(n); // find the first displayed view node
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if(!n){ break; }
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top += n.offsetTop;
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}
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// adjust the height of this view
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var h,
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screenHeight = this.getScreenSize().h,
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dh = screenHeight - top - this._appFooterHeight; // default height
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if(this.height === "inherit"){
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if(this.domNode.offsetParent){
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h = this.domNode.offsetParent.offsetHeight + "px";
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}
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}else if(this.height === "auto"){
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var parent = this.domNode.offsetParent;
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if(parent){
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this.domNode.style.height = "0px";
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var parentRect = parent.getBoundingClientRect(),
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scrollableRect = this.domNode.getBoundingClientRect(),
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contentBottom = parentRect.bottom - this._appFooterHeight;
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if(scrollableRect.bottom >= contentBottom){ // use entire screen
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dh = screenHeight - (scrollableRect.top - parentRect.top) - this._appFooterHeight;
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}else{ // stretch to fill predefined area
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dh = contentBottom - scrollableRect.bottom;
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}
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}
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// content could be smaller than entire screen height
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var contentHeight = Math.max(this.domNode.scrollHeight, this.containerNode.scrollHeight);
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h = (contentHeight ? Math.min(contentHeight, dh) : dh) + "px";
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}else if(this.height){
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h = this.height;
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}
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if(!h){
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h = dh + "px";
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}
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if(h.charAt(0) !== "-" && // to ensure that h is not negative (e.g. "-10px")
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h !== "default"){
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this.domNode.style.height = h;
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}
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// to ensure that the view is within a scrolling area when resized.
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this.onTouchEnd();
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};
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this.onFlickAnimationStart = function(e){
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event.stop(e);
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};
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this.onFlickAnimationEnd = function(e){
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var an = e && e.animationName;
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if(an && an.indexOf("scrollableViewScroll2") === -1){
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if(an.indexOf("scrollableViewScroll0") !== -1){ // scrollBarV
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domClass.remove(this._scrollBarNodeV, "mblScrollableScrollTo0");
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}else if(an.indexOf("scrollableViewScroll1") !== -1){ // scrollBarH
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domClass.remove(this._scrollBarNodeH, "mblScrollableScrollTo1");
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}else{ // fade or others
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if(this._scrollBarNodeV){ this._scrollBarNodeV.className = ""; }
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if(this._scrollBarNodeH){ this._scrollBarNodeH.className = ""; }
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}
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return;
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}
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if(e && e.srcElement){
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event.stop(e);
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}
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this.stopAnimation();
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if(this._bounce){
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var _this = this;
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var bounce = _this._bounce;
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setTimeout(function(){
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_this.slideTo(bounce, 0.3, "ease-out");
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}, 0);
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_this._bounce = undefined;
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}else{
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this.hideScrollBar();
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this.removeCover();
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if(this._aw){ this.toTopLeft(); } // android workaround
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}
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};
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this.isFormElement = function(node){
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if(node && node.nodeType !== 1){ node = node.parentNode; }
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if(!node || node.nodeType !== 1){ return false; }
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var t = node.tagName;
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return (t === "SELECT" || t === "INPUT" || t === "TEXTAREA" || t === "BUTTON");
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};
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this.onTouchStart = function(e){
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if(this.disableTouchScroll){ return; }
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if(this._conn && (new Date()).getTime() - this.startTime < 500){
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return; // ignore successive onTouchStart calls
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}
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if(!this._conn){
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this._conn = [];
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this._conn.push(connect.connect(win.doc, has("touch") ? "touchmove" : "onmousemove", this, "onTouchMove"));
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this._conn.push(connect.connect(win.doc, has("touch") ? "touchend" : "onmouseup", this, "onTouchEnd"));
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}
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this._aborted = false;
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if(domClass.contains(this.containerNode, "mblScrollableScrollTo2")){
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this.abort();
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}else{ // reset scrollbar class especially for reseting fade-out animation
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if(this._scrollBarNodeV){ this._scrollBarNodeV.className = ""; }
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if(this._scrollBarNodeH){ this._scrollBarNodeH.className = ""; }
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}
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if(this._aw){ this.toTransform(e); } // android workaround
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this.touchStartX = e.touches ? e.touches[0].pageX : e.clientX;
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this.touchStartY = e.touches ? e.touches[0].pageY : e.clientY;
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this.startTime = (new Date()).getTime();
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this.startPos = this.getPos();
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this._dim = this.getDim();
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this._time = [0];
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this._posX = [this.touchStartX];
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this._posY = [this.touchStartY];
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this._locked = false;
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if(!this.isFormElement(e.target) && !this.isNested){
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event.stop(e);
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}
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};
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this.onTouchMove = function(e){
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if(this._locked){ return; }
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var x = e.touches ? e.touches[0].pageX : e.clientX;
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var y = e.touches ? e.touches[0].pageY : e.clientY;
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var dx = x - this.touchStartX;
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var dy = y - this.touchStartY;
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var to = {x:this.startPos.x + dx, y:this.startPos.y + dy};
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var dim = this._dim;
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dx = Math.abs(dx);
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dy = Math.abs(dy);
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if(this._time.length == 1){ // the first TouchMove after TouchStart
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if(this.dirLock){
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if(this._v && !this._h && dx >= this.threshold && dx >= dy ||
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(this._h || this._f) && !this._v && dy >= this.threshold && dy >= dx){
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this._locked = true;
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return;
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}
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}
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if(this._v && Math.abs(dy) < this.threshold ||
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(this._h || this._f) && Math.abs(dx) < this.threshold){
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return;
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}
|
|
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;
|
|
});
|