> Aproveito para perguntar se a solução funcionaria caso o dataProvider for
> uma ArrayCollection vinda de um de um DataService ?
Creio que a semântica possa seguir a mesma linha de raciocínio, mas a
sintaxe já não poderia ser aproveitada visto que a notação para
trabalhar com os atributos XML é diferente da notação para trabalhar
com as propriedades dos objetos, tal como o uso do @ (arroba) no caso
do XML. Mas a princípio seria simples adaptar a solução para o caso
que você citou.
[]'s
Beck Novaes
On 15 maio, 08:40, "João Ribeiro Junior" <[EMAIL PROTECTED]> wrote:
> Ótima solução Hamad, Beck.
> Aproveito para perguntar se a solução funcionaria caso o dataProvider for
> uma ArrayCollection vinda de um de um DataService ?
>
> João
>
> 2007/5/15, Hamad Amaral <[EMAIL PROTECTED]>:
>
>
>
> > Beck,
>
> > BN> Eu faria apenas umas Refatorações básicos para reduzir a complexidade
> > BN> e aumentar a legibilidade.
>
> > Beleza, Beck, obrigado, eu já tinha removido parte do código duplicado,
> > mas
> > não pensei na solução das constantes. Como sempre, você mandou muito
> > bem.
>
> > BN> NO LUGAR DA FUNÇÃO "moveNodeTest()" TERÍAMOS:
> > BN> =========================================
>
> > BN> private function setStateMoveButtons():void
> > BN> {
> > BN> if ([EMAIL PROTECTED] != MODULE)
> > BN> {
> > BN> btUp.enabled = false;
> > BN> btDown.enabled = false;
> > BN> }
> > BN> else
> > BN> {
> > BN> var hasPrevSibling:Boolean = (
> > myTree.selectedItem.childIndex()-1) >=
> > BN> 0;
> > BN> var hasNextSibling:Boolean = (
> > myTree.selectedItem.childIndex()+1) <
> > BN> myTree.selectedItem.parent().children().length();
> > BN> btUp.enabled = hasPrevSibling;
> > BN> btDown.enabled = hasNextSibling;
> > BN> }
> > BN> }
>
> > BN> Acabamos de matar 3 ifs.
>
> > BN> NO LUGAR DE "moveNode()" TERÍAMOS:
> > BN> ===============================
>
> > BN> private function moveModule(type:int):void
> > BN> {
> > BN> if (type == UP || type == DOWN)
> > BN> {
> > BN> var firstModule:XML = XML(myTree.selectedItem);
> > BN> var firstModuleCopy:XML = firstModule.copy();
> > BN> myTree.selectedIndex = myTree.selectedIndex + type;
> > BN> var secondModule:XML = XML(myTree.selectedItem);
> > BN> [EMAIL PROTECTED] = [EMAIL PROTECTED];
> > BN> [EMAIL PROTECTED] = [EMAIL PROTECTED];
> > BN> [EMAIL PROTECTED] = [EMAIL PROTECTED];
> > BN> [EMAIL PROTECTED] = [EMAIL PROTECTED];
> > BN> }
> > BN> else
> > BN> {
> > BN> Alert.show("Error");
> > BN> }
> > BN> setStateMoveButtons();
> > BN> }
>
> > BN> Usamos constantes no lugar de strings, matamos um "if" e removemos o
> > BN> código duplicado. Estas constantes seriam definadas da seguinte forma:
>
> > BN> private const UP:int = -1;
> > BN> private const DOWN:int = 1;
>
> > BN> Então elas seriam usadas no "click" dos botões:
>
> > BN> <mx:Button id="btUp" label="UP" enabled="false" click="moveModule(UP)"
> > BN> x="209" y="189" width="58"/>
> > BN> <mx:Button id="btDown" label="Down" enabled="false"
> > BN> click="moveModule(DOWN)" x="209" y="219" />
>
> > BN> []'s
> > BN> Beck Novaes
>
> > BN> On 14 maio, 07:03, Hamad Amaral <[EMAIL PROTECTED]> wrote:
> > >> Pessoal,
>
> > >> Segue a minha solução (mas estou certo de que existem soluções
> > melhores):
>
> > >> <?xml version="1.0" encoding="utf-8"?>
> > >> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";
> > layout="absolute"
> > >> initialize="getInitialData();">
> > >> <mx:Script>
> > >> <![CDATA[
> > >> import mx.controls.Alert;
> > >> import mx.collections.XMLListCollection;
>
> > >> private const FOLDER:String = "folder";
> > >> private const COURSE:String = "course";
> > >> private const MODULE:String = "module";
>
> > >> [Bindable]
> > >> private var types: Array =
> > [FOLDER,COURSE,MODULE];
>
> > >> [Bindable]
> > >> private var coursesList:XML =
> > >> <list><node objectID="6"
> > name="CF" parentID="1" recordType="course"><node objectID="7" name="CFC"
> > parentID="6" recordType="module"/><node objectID="8"
> > >> name="CFAdmin" parentID="6" recordType="module"/><node objectID="9"
> > name="CFML" parentID="6" recordType="module"/><node objectID="10"
> > name="CFSCRIPT" parentID="6" recordType="module"/></node><node
> > >> objectID="2" name="DataBase" parentID="1" recordType="folder"><node
> > objectID="3" name="Oracle" parentID="2" recordType="course"><node
> > objectID="4" name="PLSQL" parentID="3"
> > >> recordType="module"/><node objectID="5" name="SP" parentID="3"
> > recordType="module"/></node></node></list> ;
>
> > >> [Bindable]
> > >> private var courses:XMLListCollection;
>
> > >> private function getInitialData():void
> > >> {
> > >> courses = new XMLListCollection(
> > coursesList.node);
> > >> }
>
> > >> private function
> > treeNodeLabelFunction(item:XML):String
> > >> {
> > >> return [EMAIL PROTECTED] + " (" +
> > [EMAIL PROTECTED] + ")";
> > >> }
>
> > >> private function moveNodeTest():void
> > >> {
> > >> if ([EMAIL PROTECTED] !=
> > MODULE)
> > >> {
> > >> btUp.enabled = false;
> > >> btDown.enabled = false;
> > >> }
> > >> else
> > >> {
> > >> var modulesList:XMLList =
> > myTree.selectedItem.parent().descendants();
> > >> if (modulesList[0] ==
> > myTree.selectedItem)
> > >> {
> > >> btUp.enabled = false;
> > >> btDown.enabled = true;
> > >> }else if (modulesList[
> > modulesList.length()-1] == myTree.selectedItem)
> > >> {
> > >> btUp.enabled = true;
> > >> btDown.enabled = false;
> > >> }
> > >> else
> > >> {
> > >> btUp.enabled = true;
> > >> btDown.enabled = true;
> > >> }
> > >> }
> > >> }
>
> > >> private function moveNode(type:String):void
> > >> {
> > >> var i:Number;
> > >> var module:XML;
> > >> var aModule:XML;
> > >> var tempNode:XML;
>
> > >> if (type == "up")
> > >> {
> > >> module = XML(
> > myTree.selectedItem);
> > >> tempNode = XML(
> > myTree.selectedItem).copy();
> > >> myTree.selectedIndex =
> > myTree.selectedIndex - 1
> > >> aModule = XML(
> > myTree.selectedItem);
> > >> [EMAIL PROTECTED] = [EMAIL
> > >> PROTECTED];
> > >> [EMAIL PROTECTED] =
> > [EMAIL PROTECTED];
> > >> [EMAIL PROTECTED] = [EMAIL
> > >> PROTECTED];
> > >> [EMAIL PROTECTED] =
> > [EMAIL PROTECTED];
> > >> }
> > >> else if (type == "down")
> > >> {
> > >> module = XML(
> > myTree.selectedItem);
> > >> tempNode = XML(
> > myTree.selectedItem).copy();
> > >> myTree.selectedIndex =
> > myTree.selectedIndex + 1
> > >> aModule = XML(
> > myTree.selectedItem);
> > >> [EMAIL PROTECTED] = [EMAIL
> > >> PROTECTED];
> > >> [EMAIL PROTECTED] =
> > [EMAIL PROTECTED];
> > >> [EMAIL PROTECTED] = [EMAIL
> > >> PROTECTED];
> > >> [EMAIL PROTECTED] =
> > [EMAIL PROTECTED];
> > >> }
> > >> else
> > >> {
> > >> Alert.show("Error");
> > >> }
> > >> moveNodeTest();
> > >> }
> > >> ]]>
> > >> </mx:Script>
>
> > >> <mx:Tree id="myTree" dataProvider="{courses}"
> > labelFunction="treeNodeLabelFunction"
> > >> change="moveNodeTest()"
> > >> width="200" showRoot="false" height="300"/>
>
> > >> <mx:TextInput id="tiTemp"
> > >> text="{myTree.selectedItem.parent()[EMAIL PROTECTED]"
> > y="142" x="208"/>
>
> > >> <mx:Button id="btUp" label="UP" enabled="false"
> > click="moveNode('up')" x="209" y="189" width="58"/>
> > >> <mx:Button id="btDown" label="Down" enabled="false"
> > click="moveNode('down')" x="209" y="219" />
>
> > >> </mx:Application>
>
> > >> --
> > >> Hamad Amaral
> > >> [EMAIL PROTECTED]
>
> > BN>
>
> > BN> --
> > BN> No virus found in this incoming message.
> > BN> Checked by AVG Free Edition.
> > BN> Version: 7.5.467 / Virus Database: 269.7.0/804 - Release Date:
> > 14/5/2007 16:46
>
> > --
> > Hamad Amaral
> > [EMAIL PROTECTED]
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