97 lines
3.4 KiB
JavaScript
97 lines
3.4 KiB
JavaScript
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dojo.provide("dojox.form.Rating");
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dojo.require("dijit.form._FormWidget");
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dojo.declare("dojox.form.Rating",
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dijit.form._FormWidget,{
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// summary:
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// A widget for rating using stars.
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//
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// required: Boolean
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// TODO: Can be true or false, default is false.
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// required: false,
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templateString: null,
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// numStars: Integer/Float
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// The number of stars to show, default is 3.
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numStars: 3,
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// value: Integer/Float
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// The current value of the Rating
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value: 0,
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constructor:function(/*Object*/params){
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// Build the templateString. The number of stars is given by this.numStars,
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// which is normally an attribute to the widget node.
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dojo.mixin(this, params);
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// TODO actually "dijitInline" should be applied to the surrounding div, but FF2
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// screws up when we dojo.query() for the star nodes, it orders them randomly, because of the use
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// of display:--moz-inline-box ... very strange bug
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// Since using ul and li in combintaion with dijitInline this problem doesnt exist anymore.
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// The focusNode is normally used to store the value, i dont know if that is right here, but seems standard for _FormWidgets
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var tpl = '<div dojoAttachPoint="domNode" class="dojoxRating dijitInline">' +
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'<input type="hidden" value="0" dojoAttachPoint="focusNode" /><ul>${stars}</ul>' +
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'</div>';
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// The value-attribute is used to "read" the value for processing in the widget class
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var starTpl = '<li class="dojoxRatingStar dijitInline" dojoAttachEvent="onclick:onStarClick,onmouseover:_onMouse,onmouseout:_onMouse" value="${value}"></li>';
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var rendered = "";
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for(var i = 0; i < this.numStars; i++){
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rendered += dojo.string.substitute(starTpl, {value:i+1});
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}
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this.templateString = dojo.string.substitute(tpl, {stars:rendered});
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},
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postCreate: function(){
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this.inherited(arguments);
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this._renderStars(this.value);
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},
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_onMouse: function(evt){
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this.inherited(arguments);
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if(this._hovering){
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var hoverValue = +dojo.attr(evt.target, "value");
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this.onMouseOver(evt, hoverValue);
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this._renderStars(hoverValue, true);
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}else{
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this._renderStars(this.value);
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}
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},
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_renderStars: function(value, hover){
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// summary: Render the stars depending on the value.
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dojo.query(".dojoxRatingStar", this.domNode).forEach(function(star, i){
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if(i + 1 > value){
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dojo.removeClass(star, "dojoxRatingStarHover");
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dojo.removeClass(star, "dojoxRatingStarChecked");
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}else{
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dojo.removeClass(star, "dojoxRatingStar" + (hover ? "Checked" : "Hover"));
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dojo.addClass(star, "dojoxRatingStar" + (hover ? "Hover" : "Checked"));
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}
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});
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},
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onStarClick:function(/* Event */evt){
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// summary: Connect on this method to get noticed when a star was clicked.
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// example: dojo.connect(widget, "onStarClick", function(event){ ... })
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var newVal = +dojo.attr(evt.target, "value");
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this.setAttribute("value", newVal == this.value ? 0 : newVal);
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this._renderStars(this.value);
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this.onChange(this.value); // Do I have to call this by hand?
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},
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onMouseOver: function(/*evt, value*/){
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// summary: Connect here, the value is passed to this function as the second parameter!
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},
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setAttribute: function(/*String*/key, /**/value){
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// summary: When calling setAttribute("value", 4), set the value and render the stars accordingly.
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this.inherited("setAttribute", arguments);
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if (key=="value"){
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this._renderStars(this.value);
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this.onChange(this.value); // Do I really have to call this by hand? :-(
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}
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}
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});
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