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119 lines
3.6 KiB
JavaScript
119 lines
3.6 KiB
JavaScript
dojo.provide("dijit.ProgressBar");
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dojo.require("dojo.fx");
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dojo.require("dojo.number");
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dojo.require("dijit._Widget");
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dojo.require("dijit._Templated");
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dojo.declare("dijit.ProgressBar", [dijit._Widget, dijit._Templated], {
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// summary:
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// A progress indication widget, showing the amount completed
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// (often the percentage completed) of a task.
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//
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// example:
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// | <div dojoType="ProgressBar"
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// | places="0"
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// | progress="..." maximum="...">
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// | </div>
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//
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// description:
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// Note that the progress bar is updated via (a non-standard)
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// update() method, rather than via attr() like other widgets.
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// progress: [const] String (Percentage or Number)
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// Number or percentage indicating amount of task completed.
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// With "%": percentage value, 0% <= progress <= 100%, or
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// without "%": absolute value, 0 <= progress <= maximum
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// TODO: rename to value for 2.0
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progress: "0",
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// maximum: [const] Float
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// Max sample number
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maximum: 100,
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// places: [const] Number
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// Number of places to show in values; 0 by default
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places: 0,
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// indeterminate: [const] Boolean
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// If false: show progress value (number or percentage).
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// If true: show that a process is underway but that the amount completed is unknown.
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indeterminate: false,
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templatePath: dojo.moduleUrl("dijit", "templates/ProgressBar.html"),
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// _indeterminateHighContrastImagePath: [private] dojo._URL
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// URL to image to use for indeterminate progress bar when display is in high contrast mode
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_indeterminateHighContrastImagePath:
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dojo.moduleUrl("dijit", "themes/a11y/indeterminate_progress.gif"),
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// public functions
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postCreate: function(){
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this.inherited(arguments);
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this.indeterminateHighContrastImage.setAttribute("src",
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this._indeterminateHighContrastImagePath);
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this.update();
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},
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update: function(/*Object?*/attributes){
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// summary:
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// Change attributes of ProgressBar, similar to attr(hash).
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//
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// attributes:
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// May provide progress and/or maximum properties on this parameter;
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// see attribute specs for details.
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//
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// example:
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// | myProgressBar.update({'indeterminate': true});
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// | myProgressBar.update({'progress': 80});
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// TODO: deprecate this method and use attr() instead
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dojo.mixin(this, attributes || {});
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var tip = this.internalProgress;
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var percent = 1, classFunc;
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if(this.indeterminate){
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classFunc = "addClass";
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dijit.removeWaiState(tip, "valuenow");
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dijit.removeWaiState(tip, "valuemin");
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dijit.removeWaiState(tip, "valuemax");
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}else{
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classFunc = "removeClass";
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if(String(this.progress).indexOf("%") != -1){
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percent = Math.min(parseFloat(this.progress)/100, 1);
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this.progress = percent * this.maximum;
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}else{
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this.progress = Math.min(this.progress, this.maximum);
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percent = this.progress / this.maximum;
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}
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var text = this.report(percent);
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this.label.firstChild.nodeValue = text;
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dijit.setWaiState(tip, "describedby", this.label.id);
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dijit.setWaiState(tip, "valuenow", this.progress);
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dijit.setWaiState(tip, "valuemin", 0);
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dijit.setWaiState(tip, "valuemax", this.maximum);
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}
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dojo[classFunc](this.domNode, "dijitProgressBarIndeterminate");
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tip.style.width = (percent * 100) + "%";
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this.onChange();
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},
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report: function(/*float*/percent){
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// summary:
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// Generates message to show inside progress bar (normally indicating amount of task completed).
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// May be overridden.
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// tags:
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// extension
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return dojo.number.format(percent, { type: "percent", places: this.places, locale: this.lang });
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},
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onChange: function(){
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// summary:
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// Callback fired when progress updates.
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// tags:
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// progress
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}
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});
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