Differential D4581 Diff 9612 externals/javelin/src/lib/control/typeahead/source/TypeaheadCompositeSource.js

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externals/javelin/src/lib/control/typeahead/source/TypeaheadCompositeSource.js

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				/**
				* @requires javelin-install
				* javelin-typeahead-source
				* javelin-util
				* @provides javelin-typeahead-composite-source
				* @javelin
				*/

				/**
				* @group control
				*/
				JX.install('TypeaheadCompositeSource', {

				extend : 'TypeaheadSource',

				construct : function(sources) {
				JX.TypeaheadSource.call(this);
				this.sources = sources;

				for (var ii = 0; ii < this.sources.length; ++ii) {
				var child = this.sources[ii];
				child.listen('waiting', JX.bind(this, this.childWaiting));
				child.listen('resultsready', JX.bind(this, this.childResultsReady));
				child.listen('complete', JX.bind(this, this.childComplete));
				}
				},

				members : {
				sources : null,
				results : null,
				completeCount : 0,

				didChange : function(value) {
				this.results = [];
				this.completeCount = 0;
				for (var ii = 0; ii < this.sources.length; ++ii) {
				this.sources[ii].didChange(value);
				}
				},

				didStart : function() {
				for (var ii = 0; ii < this.sources.length; ++ii) {
				this.sources[ii].didStart();
				}
				},

				childWaiting : function() {
				if (!this.results \|\| !this.results.length) {
				this.invoke('waiting');
				}
				},

				childResultsReady : function(nodes) {
				this.results = this.mergeResults(this.results \|\| [], nodes);
				this.invoke('resultsready', this.results);
				},

				childComplete : function() {
				this.completeCount++;
				if (this.completeCount == this.sources.length) {
				this.invoke('complete');
				}
				},

				/**
				* Overrideable strategy for combining results.
				* By default, appends results as they come in
				* so that results don't jump around.
				*/
				mergeResults : function(oldResults, newResults) {
				for (var ii = 0; ii < newResults.length; ++ii) {
				oldResults.push(newResults[ii]);
				}
				return oldResults;
				}
				}
				});