113 lines
3.0 KiB
JavaScript
113 lines
3.0 KiB
JavaScript
//>>built
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define("dojox/mobile/ProgressIndicator", [
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"dojo/_base/config",
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"dojo/_base/declare",
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"dojo/dom-construct",
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"dojo/dom-style",
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"dojo/has"
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], function(config, declare, domConstruct, domStyle, has){
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// module:
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// dojox/mobile/ProgressIndicator
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// summary:
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// A progress indication widget.
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var cls = declare("dojox.mobile.ProgressIndicator", null, {
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// summary:
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// A progress indication widget.
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// description:
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// ProgressIndicator is a round spinning graphical representation
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// that indicates the current task is on-going.
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// interval: Number
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// The time interval in milliseconds for updating the spinning
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// indicator.
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interval: 100,
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// colors: Array
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// An array of indicator colors.
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colors: [
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"#C0C0C0", "#C0C0C0", "#C0C0C0", "#C0C0C0",
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"#C0C0C0", "#C0C0C0", "#B8B9B8", "#AEAFAE",
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"#A4A5A4", "#9A9A9A", "#8E8E8E", "#838383"
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],
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constructor: function(){
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this._bars = [];
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this.domNode = domConstruct.create("DIV");
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this.domNode.className = "mblProgContainer";
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if(config["mblAndroidWorkaround"] !== false && has("android") >= 2.2 && has("android") < 3){
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// workaround to avoid the side effects of the fixes for android screen flicker problem
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domStyle.set(this.domNode, "webkitTransform", "translate3d(0,0,0)");
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}
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this.spinnerNode = domConstruct.create("DIV", null, this.domNode);
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for(var i = 0; i < this.colors.length; i++){
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var div = domConstruct.create("DIV", {className:"mblProg mblProg"+i}, this.spinnerNode);
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this._bars.push(div);
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}
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},
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start: function(){
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// summary:
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// Starts the ProgressIndicator spinning.
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if(this.imageNode){
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var img = this.imageNode;
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var l = Math.round((this.domNode.offsetWidth - img.offsetWidth) / 2);
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var t = Math.round((this.domNode.offsetHeight - img.offsetHeight) / 2);
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img.style.margin = t+"px "+l+"px";
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return;
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}
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var cntr = 0;
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var _this = this;
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var n = this.colors.length;
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this.timer = setInterval(function(){
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cntr--;
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cntr = cntr < 0 ? n - 1 : cntr;
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var c = _this.colors;
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for(var i = 0; i < n; i++){
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var idx = (cntr + i) % n;
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_this._bars[i].style.backgroundColor = c[idx];
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}
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}, this.interval);
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},
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stop: function(){
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// summary:
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// Stops the ProgressIndicator spinning.
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if(this.timer){
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clearInterval(this.timer);
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}
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this.timer = null;
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if(this.domNode.parentNode){
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this.domNode.parentNode.removeChild(this.domNode);
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}
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},
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setImage: function(/*String*/file){
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// summary:
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// Sets an indicator icon image file (typically animated GIF).
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// If null is specified, restores the default spinner.
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if(file){
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this.imageNode = domConstruct.create("IMG", {src:file}, this.domNode);
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this.spinnerNode.style.display = "none";
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}else{
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if(this.imageNode){
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this.domNode.removeChild(this.imageNode);
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this.imageNode = null;
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}
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this.spinnerNode.style.display = "";
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}
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}
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});
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cls._instance = null;
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cls.getInstance = function(){
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if(!cls._instance){
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cls._instance = new cls();
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}
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return cls._instance;
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};
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return cls;
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});
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