Flex自定义右键菜单具体实现

admin Flex

2023-12-05 0 164

1.自定义右键菜单注册类: 项目中新增注册类 RightClickManager，代码如下：复制代码代码如下: package com.siloon.plugin.rightClick { import flash.display.DisplayObject; import flash.display.InteractiveObject; import flash.events.ContextMenuEvent; import flash.events.MouseEvent; import flash.external.ExternalInterface; import mx.core.Application; public class RightClickManager { static private var rightClickTarget:DisplayObject; static public const RIGHT_CLICK:String = \”rightClick\”; static private const javascript:XML = <script> <![CDATA[ /** * * Copyright 2007 * * Paulius Uza * http://www.uza.lt * * Dan Florio * http://www.polygeek.com * * Project website: * http://code.google.com/p/custom-context-menu/ * * — * RightClick for Flash Player. * Version 0.6.2 * */ function(flashObjectId) { var RightClick = { /** * Constructor */ init: function (flashObjectId) { this.FlashObjectID = flashObjectId; this.Cache = this.FlashObjectID; if(window.addEventListener){ window.addEventListener(\”mousedown\”, this.onGeckoMouse(), true); } else { document.getElementById(this.FlashObjectID).parentNode.onmouseup = function() { document.getElementById(RightClick.FlashObjectID).parentNode.releaseCapture(); } document.oncontextmenu = function(){ if(window.event.srcElement.id == RightClick.FlashObjectID) { return false; } else { RightClick.Cache = \”nan\”; }} document.getElementById(this.FlashObjectID).parentNode.onmousedown = RightClick.onIEMouse; } }, /** * GECKO / WEBKIT event overkill * @param {Object} eventObject */ killEvents: function(eventObject) { if(eventObject) { if (eventObject.stopPropagation) eventObject.stopPropagation(); if (eventObject.preventDefault) eventObject.preventDefault(); if (eventObject.preventCapture) eventObject.preventCapture(); if (eventObject.preventBubble) eventObject.preventBubble(); } }, /** * GECKO / WEBKIT call right click * @param {Object} ev */ onGeckoMouse: function(ev) { return function(ev) { if (ev.button != 0) { RightClick.killEvents(ev); if(ev.target.id == RightClick.FlashObjectID && RightClick.Cache == RightClick.FlashObjectID) { RightClick.call(); } RightClick.Cache = ev.target.id; } } }, /** * IE call right click * @param {Object} ev */ onIEMouse: function() { if (event.button > 1) { if(window.event.srcElement.id == RightClick.FlashObjectID && RightClick.Cache == RightClick.FlashObjectID) { RightClick.call(); } document.getElementById(RightClick.FlashObjectID).parentNode.setCapture(); if(window.event.srcElement.id) RightClick.Cache = window.event.srcElement.id; } }, /** * Main call to Flash External Interface */ call: function() { document.getElementById(this.FlashObjectID).rightClick(); } } RightClick.init(flashObjectId); } ]]> </script>; public function RightClickManager() { return; } static public function regist() : Boolean { if (ExternalInterface.available) { ExternalInterface.call(javascript, ExternalInterface.objectID); ExternalInterface.addCallback(\”rightClick\”, dispatchRightClickEvent); Application.application.addEventListener(MouseEvent.MOUSE_OVER,mouseOverHandler); }// end if return true; } static private function mouseOverHandler(event:MouseEvent) : void { //rightClickTarget = DisplayObject(event.target); rightClickTarget = InteractiveObject(event.target); return; } static private function dispatchRightClickEvent() : void { var event:MouseEvent; if (rightClickTarget != null) { event = new MouseEvent(RIGHT_CLICK, true, false, rightClickTarget.mouseX, rightClickTarget.mouseY); //event = new ContextMenuEvent(RIGHT_CLICK, true, false, rightClickTarget as InteractiveObject, rightClickTarget as InteractiveObject); rightClickTarget.dispatchEvent(event); }// end if return; } } } 2. 打开自己的Flex工程下的html-template文件夹下的index.template.html文件（右击-Open With-Text Editor），在var params = {};语句的下面添加下面的语句： params.wmode = \”opaque\”;//屏蔽系统右键菜单的关键 ——————————————————————————– 3. 在主程序文件中引入：复制代码代码如下: //初始化 protected function init():void { if (!rightClickRegisted) { maxNumText.text=rightClickRegisted.toString(); RightClickManager.regist(); rightClickRegisted = true; } this.addEventListener(RightClickManager.RIGHT_CLICK,rightClickHandler); maxNumText.text+=\”init\”; } //创建菜单项 private function createMenuItems():Array { var menuItems:Array = new Array(); var menuItem:Object; menuItem = new Object; menuItem.label = \’刷新\’; //菜单项名称 //menuItem.itemIcon = this.menu_SX;//菜单项图标 menuItems.push(menuItem); return menuItems; } //生成右键菜单 private function initMenu():void { menu = Menu.createMenu(this, createMenuItems(), false); //menu.iconField=\”itemIcon\”;//右键菜单的图标 //menu.labelField=\”label\”; //右键菜单的名称 menu.variableRowHeight = true; menu.width=100; menu.addEventListener(MenuEvent.ITEM_CLICK, menuItemSelected); //右键菜单的事件 var point:Point = new Point(mouseX,mouseY); point = localToGlobal(point); menu.show(point.x,point.y); //显示右键菜单 maxNumText.text=\”initMenu\”; } //删除右键菜单 private function removeMenu():void { if(menu!=null) { menu.hide(); menu.removeEventListener(MenuEvent.ITEM_CLICK,menuItemSelected); menu=null; } maxNumText.text=\”removeMenu\”; } //菜单项点击事件 private function menuItemSelected(event:MenuEvent):void { var menuItem:Object = event.menu.selectedItem as Object; //…… switch(menuItem.label) { case \”刷新\”: addLine(); break; // …… } } private function addLine():void { maxNumText.text=\”addLine\”; } //控件右击事件 private function rightClickHandler(event:MouseEvent):void { //tree_onRightClicked(event); maxNumText.text=\”rightClickHandler0\”; removeMenu(); initMenu(); maxNumText.text=\”rightClickHandler\”; } 4.完整代码如下：示例代码文件

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