flash on 2011-9-12

/**
 * Copyright fujiopera ( http://wonderfl.net/user/fujiopera )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/7Ct9
 */

////////////////////////////////////////////////////////////////////////////////
//
// ADOBE SYSTEMS INCORPORATED
// Copyright 2007-2010 Adobe Systems Incorporated
// All Rights Reserved.
//
// NOTICE:  Adobe permits you to use, modify, and distribute this file 
// in accordance with the terms of the license agreement accompanying it.
//
////////////////////////////////////////////////////////////////////////////////
package {
    import flash.display.Sprite;
    
    import flashx.textLayout.container.ContainerController;
    import flashx.textLayout.elements.TextFlow;
    import flashx.textLayout.conversion.TextConverter;
    import flashx.textLayout.edit.EditManager;
    import flashx.undo.UndoManager;

    /** Simple example of a text component where the text is selectable and editable and has custom context menu items.  */
    public class ContextMenuText extends Sprite
    {
        public function ContextMenuText()
        {
            var markup:XML = <TextFlow xmlns='http://ns.adobe.com/textLayout/2008'><p><span>Hello, World</span></p></TextFlow>;
            var textFlow:TextFlow = TextConverter.importToFlow(markup, TextConverter.TEXT_LAYOUT_FORMAT);
            textFlow.flowComposer.addController(new MyContainerController(this, 200, 50)); // Note: using a custom controller for populating/handling context menu
            textFlow.flowComposer.updateAllControllers();
            
            textFlow.interactionManager = new EditManager(new UndoManager());
        }
    }
}

import flash.display.Sprite;
import flash.ui.ContextMenu;
import flash.ui.ContextMenuItem;
import flash.events.ContextMenuEvent;

import flashx.textLayout.container.ContainerController;
import flashx.textLayout.edit.IEditManager;
import flashx.undo.IUndoManager;

/** Custom container controller for populating context menu and hanlding menu item selection  */
class MyContainerController extends ContainerController
{
    public function MyContainerController(container:Sprite,compositionWidth:Number=100,compositionHeight:Number=100)
    {
        super (container, compositionWidth, compositionHeight);
    }
    
    /** Overridden to add custom items to the context menu */
    override protected function createContextMenu():ContextMenu
    {
        // Get the default context menu used by TLF for editable flows
        var contextMenu:ContextMenu = super.createContextMenu();
        
        // Listen for menu selection
        contextMenu.addEventListener(ContextMenuEvent.MENU_SELECT, updateCustomMenuItems);
        
        // Add custom menu items
        _undoItem = new ContextMenuItem("[Undo]"); // for illustration only; not "undo" caption is not allowed 
        _undoItem.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, undo);
        contextMenu.customItems.push(_undoItem);
        
        _redoItem = new ContextMenuItem("[Redo]");
        _redoItem.addEventListener(ContextMenuEvent.MENU_ITEM_SELECT, redo);
        contextMenu.customItems.push(_redoItem);
        
        return contextMenu;
    }
    
    /** Update the state of the custom menu items before the context menu is displayed */
     private function updateCustomMenuItems(event:ContextMenuEvent):void 
     {
         var undoManager:IUndoManager = (textFlow.interactionManager as IEditManager).undoManager;
         _undoItem.enabled = undoManager.canUndo();
         _redoItem.enabled = undoManager.canRedo();
     }
     
     private function undo(event:ContextMenuEvent):void 
     {
        (textFlow.interactionManager as IEditManager).undoManager.undo();
     }
     
     private function redo(event:ContextMenuEvent):void 
     {
        (textFlow.interactionManager as IEditManager).undoManager.redo();
     }
     
     private var _undoItem:ContextMenuItem;
     private var _redoItem:ContextMenuItem;
}