85 lines
2.3 KiB
JavaScript
85 lines
2.3 KiB
JavaScript
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dojo.provide("dojox.wire.TextAdapter");
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dojo.require("dojox.wire.CompositeWire");
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dojo.declare("dojox.wire.TextAdapter", dojox.wire.CompositeWire, {
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// summary:
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// A composite Wire for a concatenated text
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// description:
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// This class has multiple child Wires for text segment values.
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// Wires in 'segments' property are used to get text segments and
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// values are concatenated with an optional delimiter string specified
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// to 'delimiter' property.
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_wireClass: "dojox.wire.TextAdapter",
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constructor: function(/*Object*/args){
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// summary:
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// Initialize properties
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// description:
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// If array elements specified in 'segments' are not Wires, Wires
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// are created from them as arguments, with 'parent' property set
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// to this Wire instance.
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// args:
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// Arguments to initialize properties
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// segments:
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// An array containing child Wires for text segment values
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// delimiter:
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// A delimiter string
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this._initializeChildren(this.segments);
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if(!this.delimiter){
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this.delimiter = "";
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}
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},
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_getValue: function(/*Object||Array*/object){
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// summary:
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// Return a concatenated text
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// description:
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// This method calls getValue() method of the child Wires wuth
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// 'object' argument and concatenate the values with 'delimiter'
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// property to return.
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// arg:
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// A root object
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// returns:
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// A concatinated text
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if(!object || !this.segments){
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return object; //Object||Array
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}
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var text = "";
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for(var i in this.segments){
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var segment = this.segments[i].getValue(object);
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text = this._addSegment(text, segment);
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}
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return text; //String
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},
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_setValue: function(/*Object||Array*/object, /*String*/value){
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// summary:
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// Not supported
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throw new Error("Unsupported API: " + this._wireClass + "._setValue");
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},
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_addSegment: function(/*String*/text, /*String*/segment){
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// summary:
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// Return a concatenated text
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// description:
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// This method add a text segment specified to 'segment' argument
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// to a base text specified to 'text', with 'delimiter' property.
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// text:
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// A base text
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// segment:
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// A text segment to add
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// returns:
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// A concatinated text
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if(!segment){
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return text; //String
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}else if(!text){
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return segment; //String
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}else{
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return text + this.delimiter + segment; //String
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}
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}
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});
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