TREE AVEC RECHERCHE POUR AFFICHER UN XML.

/**
 * Classe com.wikimb.TreeDoc
 * 
 * Auteur: SuperDevy ( www.tibulle.com )
 * Version: alpha 1.0
 * Date: 29 mai 2005
 * Flash MX 2004 pro requis
 * 
 * Classe applicative crée pour le wiki media-box.
 * Trois composants doivent être déposés : Tree, TextInput, CheckBox.
 * 
 **/

import mx.controls.Tree
import mx.controls.TextInput
import mx.controls.CheckBox

class com.wikimb.TreeDoc
{
	public var datasXML:XML;
	public var searchXML:XML;
	
	public var tree:Tree;
	public var input:TextInput;
	public var checkbox:CheckBox;
	
	public var onSelect:Function;


//---o  Constructeur

	public function TreeDoc (tree:Tree, input:TextInput, checkbox:CheckBox)
	{
	//---<  Enregistrement des composants
		this.tree     = tree;
		this.input    = input;
		this.checkbox = checkbox;

	//---<  Accessibilité
		input.tabIndex    = 0;
		checkbox.tabIndex = 1;
		tree.tabIndex     = 2;
		
		input._accProps.name = "Recherche";

	//---<  Alignement
		resize();
		Stage.align = "TL";
		Stage.scaleMode = "noScale";
	}


//---o  Initialisation une fois le chargement effectué

	public function initialize (Void) :Void
	{
		trace("Initialisation");
		var local = this;
	
	//---<  Tree (Liste)
		tree.dataProvider = datasXML.cloneNode(true);
		var event_tree:Object = new Object();
		event_tree.change = function () {
			var item:XMLNode = local.tree.selectedNode;
			if (!item.hasChildNodes()) {
				local.onSelect(item);
			}
		}
		tree.addEventListener("change", event_tree);

	//---<  TextInbox (Recherche)
		var event_input:Object = new Object();
		event_input.enter = function () {
			local.search(local.input.text);
		}
		event_input.change = function () {
			if (local.checkbox.selected) {
				local.search(local.input.text);
			}
		}
		input.addEventListener("enter", event_input);
		input.addEventListener("change", event_input);

	//---<  Stage (Redimentionnement)
		var event_stage:Object = new Object();
		event_stage.onResize = function () {
			local.resize();
		}
		Stage.addListener(event_stage);
	}


//---o  Chargement des données XML

	function load (url:String) :Void
	{
		var local = this;
		datasXML = new XML();
		datasXML.ignoreWhite = true;
		datasXML.onLoad = function() {
			trace("Chargement terminé");
			local.initialize();
		}
		datasXML.load(url);
	}


//---o  Recherche (initialisation)

	public function search (text:String) :Void
	{
		trace("Recherche pour le mot " + text);
		var t = getTimer();
		var local = this;
		
		if (text!="") {
			local.searchXML = new XML();
			
			var addNode = function (child) {
				local.searchXML.appendChild(child.cloneNode(false));
			};
			rec_search(datasXML, text, addNode);
			tree.dataProvider = local.searchXML;
		} else {
			local.searchXML = null;
			tree.dataProvider = local.datasXML.cloneNode(true);
		}
		
		trace("Temps de la recherche " + (getTimer()-t) + " ms");
	}


//---o  Recherche (exploration récursive)

	private function rec_search (node:XMLNode, text:String, action:Function) :Void
	{
		var childs = node.childNodes;
		var i:Number = 0;
		while (childs[i]!=undefined) {
			if (childs[i].hasChildNodes()) {
				rec_search(childs[i], text, action);
			} else {
				if (containText(childs[i].attributes.label, text)) {
					action(childs[i]);
				}
			}
			i++;
		}
	}


//---o  Regarde si un mot est présent dans une phrase.

	public function containText (sentence:String, word:String) :Boolean
	{
		return (sentence.toLowerCase().split(word.toLowerCase(), 2).length > 1);
	}


//---o  Redimentionnement pour coller aux bords

	public function resize (Void) :Void
	{
		trace("Redimentionnement");
		this.tree.setSize(Stage.width, Stage.height-24);
		this.input.setSize(Stage.width-22, 22);
	}

}

//				---> by SuperDevy <---