用于 Adobe® Flash® Platform 的 ActionScript® 3.0 参考
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flash.ui 

ContextMenuItem  - AS3

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adobe.utils
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com.adobe.ep.ux.taskaction.domain
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com.adobe.exm.expression
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com.adobe.exm.expression.impl
com.adobe.fiber.runtime.lib
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com.adobe.fiber.services.wrapper
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com.adobe.gravity.binding
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com.adobe.icc.dc.domain
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com.adobe.icomm.assetplacement.controller
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com.adobe.icomm.assetplacement.data
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com.adobe.livecycle.assetmanager.client
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com.adobe.livecycle.assetmanager.client.handler
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com.adobe.livecycle.assetmanager.client.model
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com.adobe.livecycle.assetmanager.client.service
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com.adobe.livecycle.assetmanager.client.utils
com.adobe.livecycle.content
com.adobe.livecycle.rca.model
com.adobe.livecycle.rca.model.constant
com.adobe.livecycle.rca.model.document
com.adobe.livecycle.rca.model.participant
com.adobe.livecycle.rca.model.reminder
com.adobe.livecycle.rca.model.stage
com.adobe.livecycle.rca.service
com.adobe.livecycle.rca.service.core
com.adobe.livecycle.rca.service.core.delegate
com.adobe.livecycle.rca.service.process
com.adobe.livecycle.rca.service.process.delegate
com.adobe.livecycle.rca.token
com.adobe.livecycle.ria.security.api
com.adobe.livecycle.ria.security.service
com.adobe.mosaic.layouts
com.adobe.mosaic.layouts.dragAndDrop
com.adobe.mosaic.layouts.interfaces
com.adobe.mosaic.mxml
com.adobe.mosaic.om.constants
com.adobe.mosaic.om.events
com.adobe.mosaic.om.impl
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com.adobe.mosaic.sparklib.text
com.adobe.mosaic.sparklib.util
com.adobe.solutions.acm.authoring.presentation
com.adobe.solutions.acm.authoring.presentation.actionbar
com.adobe.solutions.acm.authoring.presentation.common
com.adobe.solutions.acm.authoring.presentation.events
com.adobe.solutions.acm.authoring.presentation.fragment
com.adobe.solutions.acm.authoring.presentation.letter
com.adobe.solutions.acm.authoring.presentation.letter.data
com.adobe.solutions.acm.authoring.presentation.preview
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com.adobe.solutions.acm.ccr.presentation.contentcapture
com.adobe.solutions.acm.ccr.presentation.contentcapture.events
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com.adobe.solutions.acm.ccr.presentation.datacapture
com.adobe.solutions.acm.ccr.presentation.datacapture.renderers
com.adobe.solutions.acm.ccr.presentation.pdf
com.adobe.solutions.exm
com.adobe.solutions.exm.authoring
com.adobe.solutions.exm.authoring.components.controls
com.adobe.solutions.exm.authoring.components.toolbars
com.adobe.solutions.exm.authoring.domain
com.adobe.solutions.exm.authoring.domain.expression
com.adobe.solutions.exm.authoring.domain.impl
com.adobe.solutions.exm.authoring.domain.method
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com.adobe.solutions.exm.authoring.enum
com.adobe.solutions.exm.authoring.events
com.adobe.solutions.exm.authoring.model
com.adobe.solutions.exm.authoring.renderer
com.adobe.solutions.exm.authoring.view
com.adobe.solutions.exm.expression
com.adobe.solutions.exm.impl
com.adobe.solutions.exm.impl.method
com.adobe.solutions.exm.method
com.adobe.solutions.exm.mock
com.adobe.solutions.exm.mock.method
com.adobe.solutions.exm.runtime
com.adobe.solutions.exm.runtime.impl
com.adobe.solutions.exm.variable
com.adobe.solutions.prm.constant
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com.adobe.solutions.prm.presentation.asset
com.adobe.solutions.prm.presentation.constant
com.adobe.solutions.prm.presentation.document
com.adobe.solutions.prm.presentation.event
com.adobe.solutions.prm.presentation.file
com.adobe.solutions.prm.presentation.project
com.adobe.solutions.prm.presentation.team
com.adobe.solutions.prm.presentation.util
com.adobe.solutions.prm.service
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com.adobe.solutions.prm.vo
com.adobe.solutions.rca.constant
com.adobe.solutions.rca.domain
com.adobe.solutions.rca.domain.common
com.adobe.solutions.rca.domain.factory
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com.adobe.solutions.rca.presentation
com.adobe.solutions.rca.presentation.comment
com.adobe.solutions.rca.presentation.constant
com.adobe.solutions.rca.presentation.event
com.adobe.solutions.rca.presentation.gantt
com.adobe.solutions.rca.presentation.gantt.ruler
com.adobe.solutions.rca.presentation.template
com.adobe.solutions.rca.presentation.template.audit
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com.adobe.solutions.rca.presentation.template.stages
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com.adobe.solutions.rca.service
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com.adobe.viewsource
fl.accessibility
fl.containers
fl.controls
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fl.core
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fl.ik
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flashx.undo
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lc.procmgmt.ui.controls.card
lc.procmgmt.ui.controls.renderer
lc.procmgmt.ui.help
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xd.core.axm.enterprise.view.components
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语言元素

全局常量
全局函数
运算符
语句、关键字和指令
特殊类型

附录

新增内容
编译器错误
编译器警告
运行时错误
迁移到 ActionScript 3
支持的字符集
仅适用于 MXML 的标签
Motion XML 元素
Timed Text 标记
不推荐使用的元素的列表
AccessibilityImplementation 常量
如何使用 ActionScript 示例
法律声明
flash.ui
public final class ContextMenuItem
继承ContextMenuItem Inheritance NativeMenuItem Inheritance EventDispatcher Inheritance Object

语言版本: ActionScript 3.0
运行时版本: AIR 1.0, Flash Player 9

ContextMenuItem 类表示上下文菜单中的项。每个 ContextMenuItem 对象都有一个显示在上下文菜单中的标题(文本)。要向上下文菜单中添加新项,请将其添加到 ContextMenu 对象的 customItems 数组。

利用 ContextMenuItem 类的属性,您可以启用或禁用特定菜单项,也可以显示或隐藏菜单项。

可以为 menuItemSelect 事件编写事件处理函数,以便在用户选择菜单项时为其添加功能。

自定义菜单项出现在上下文菜单的顶部,并位于所有内置菜单项之上。有一条分隔条将自定义菜单项与内置菜单项分开。在 AIR 中,不存在内置菜单项,且下列限制不适用于 AIR 应用程序沙箱中的内容。

限制:

  • 向上下文菜单添加的自定义菜单项不得超过 15 个。
  • 每个标题至少必须包含一个可见字符。
  • 控制字符、换行符和其他空白字符将被忽略。
  • 任何标题的长度都不能超过 100 个字符。
  • 与任何内置菜单项或其他自定义菜单项相同的标题将被忽略,不管匹配的菜单项是否可见。菜单标题在与内置标题或现有自定义标题比较时将不考虑大小写、标点符号或空白。
  • 不允许使用以下标题,但可以将这些词与其他词结合使用以形成自定义标题(例如,尽管不允许使用“粘贴”,但却允许使用“粘贴感觉良好”):
     Save
     Zoom In
     Zoom Out
     100%
     Show All
     Quality
     Play
     Loop
     Rewind
     Forward
     Back
     Movie not loaded
     About
     Print
     Show Redraw Regions
     Debugger
     Undo
     Cut
     Copy
     Paste
     Delete
     Select All
     Open
     Open in new window
     Copy link
     
  • 不管是本身还是与其他词结合使用,以下任何一个词都不能出现在自定义标题中:
     Adobe
     Macromedia
     Flash Player
     Settings
     

注意:如果播放器运行在非英语系统上,标题字符串将同时与英语列表和对应的本地化字符串进行比较。

查看示例

相关 API 元素



公共属性
 属性由以下参数定义
  caption : String
指定上下文菜单中显示的菜单项标题(文本)。
ContextMenuItem
 Inherited    checked : Boolean
控制此菜单项是否显示复选标记。
NativeMenuItem
 Inheritedconstructor : Object
对类对象或给定对象实例的构造函数的引用。
Object
 Inherited    data : Object
与此菜单项关联的任意数据对象。
NativeMenuItem
 Inherited    enabled : Boolean
控制是否启用此菜单项。
NativeMenuItem
 Inherited    isSeparator : Boolean
[只读] 报告此项目是否为菜单分隔线。
NativeMenuItem
 Inherited    keyEquivalent : String
此菜单项的等效键。
NativeMenuItem
 Inherited    keyEquivalentModifiers : Array
等效功能键的键控代码数组。
NativeMenuItem
 Inherited    label : String
此菜单项的显示字符串。
NativeMenuItem
 Inherited    menu : NativeMenu
[只读] 包含此项目的菜单。
NativeMenuItem
 Inherited    mnemonicIndex : int
菜单项标签中的助记键字符的位置。
NativeMenuItem
 Inherited    name : String
此菜单项的名称。
NativeMenuItem
  separatorBefore : Boolean
表示指定的菜单项上方是否显示分隔条。
ContextMenuItem
 Inherited    submenu : NativeMenu
与此菜单项关联的子菜单。
NativeMenuItem
  visible : Boolean
表示在显示 Flash Player 上下文菜单时指定菜单项是否可见。
ContextMenuItem
公共方法
 方法由以下参数定义
  
ContextMenuItem(caption:String, separatorBefore:Boolean = false, enabled:Boolean = true, visible:Boolean = true)
创建一个可添加到 ContextMenu.customItems 数组的新 ContextMenuItem 对象。
ContextMenuItem
 Inherited
addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
使用 EventDispatcher 对象注册事件侦听器对象,以使侦听器能够接收事件通知。
EventDispatcher
  
[覆盖] 创建 NativeMenuItem 对象的副本。
ContextMenuItem
 Inherited
将事件调度到事件流中。
EventDispatcher
 Inherited
检查 EventDispatcher 对象是否为特定事件类型注册了任何侦听器。
EventDispatcher
 Inherited
表示对象是否已经定义了指定的属性。
Object
 Inherited
表示 Object 类的实例是否在指定为参数的对象的原型链中。
Object
 Inherited
表示指定的属性是否存在、是否可枚举。
Object
 Inherited
removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void
从 EventDispatcher 对象中删除侦听器。
EventDispatcher
 Inherited
设置循环操作动态属性的可用性。
Object
  
[静态]
ContextMenuItem
  
[静态]
ContextMenuItem
  
[静态]
ContextMenuItem
  
[静态]
ContextMenuItem
  
[静态]
ContextMenuItem
  
[静态]
ContextMenuItem
  
[静态]
ContextMenuItem
 Inherited
返回此对象的字符串表示形式,其格式设置遵守区域设置特定的约定。
Object
 Inherited
    toString():String
[覆盖] 返回一个字符串,其中包含 NativeMenuItem 对象的所有属性。
NativeMenuItem
 Inherited
返回指定对象的原始值。
Object
 Inherited
检查是否用此 EventDispatcher 对象或其任何祖代为指定事件类型注册了事件侦听器。
EventDispatcher
事件
 事件 摘要 由以下参数定义
 Inherited[广播事件] Flash Player 或 AIR 应用程序获得操作系统焦点并变为活动状态时将调度此事件。EventDispatcher
 Inherited[广播事件] Flash Player 或 AIR 应用程序失去操作系统焦点并变为非活动状态时将调度此事件。EventDispatcher
 Inherited
    displaying
在显示包含此项目的菜单的前一刻由此 NativeMenuItem 对象调度。NativeMenuItem
  用户从上下文菜单中选择某一项时调度。ContextMenuItem
 Inherited
    preparing
在包含它的菜单显示之前的一瞬间且按下其等效键时由此 NativeMenuItem 对象调度。NativeMenuItem
 Inherited
    select
每当用户选择菜单项时调度。NativeMenuItem
属性详细信息

caption

属性
caption:String

语言版本: ActionScript 3.0
运行时版本: AIR 1.0, Flash Player 9

指定上下文菜单中显示的菜单项标题(文本)。有关 caption 值限制,请参阅 ContextMenuItem 类概述。



实现
    public function get caption():String
    public function set caption(value:String):void

separatorBefore

属性 
separatorBefore:Boolean

语言版本: ActionScript 3.0
运行时版本: AIR 1.0, Flash Player 9

表示指定的菜单项上方是否显示分隔条。

注意:任何自定义菜单项和内置菜单项之间始终会出现分隔条。

默认值为 false。



实现
    public function get separatorBefore():Boolean
    public function set separatorBefore(value:Boolean):void

visible

属性 
visible:Boolean

语言版本: ActionScript 3.0
运行时版本: AIR 1.0, Flash Player 9

表示在显示 Flash Player 上下文菜单时指定菜单项是否可见。

默认值为 true。



实现
    public function get visible():Boolean
    public function set visible(value:Boolean):void
构造函数详细信息

ContextMenuItem

()构造函数
public function ContextMenuItem(caption:String, separatorBefore:Boolean = false, enabled:Boolean = true, visible:Boolean = true)

语言版本: ActionScript 3.0
运行时版本: AIR 1.0, Flash Player 9

创建一个可添加到 ContextMenu.customItems 数组的新 ContextMenuItem 对象。

参数
caption:String — 指定与菜单项关联的文本。有关 caption 值限制,请参阅 ContextMenuItem 类概述。
 
separatorBefore:Boolean (default = false) — 指定分隔条是否显示在上下文菜单中的菜单项上方。默认值为 false
 
enabled:Boolean (default = true) — 指定菜单项在上下文菜单中是处于启用状态还是禁用状态。默认值为 true(启用)。此参数是可选的。
 
visible:Boolean (default = true) — 指定菜单项是否可见。默认值为 true(可见)。
方法详细信息

clone

()方法
override public function clone():NativeMenuItem

创建 NativeMenuItem 对象的副本。

返回
NativeMenuItem

systemClearMenuItem

()方法 
public static function systemClearMenuItem():ContextMenuItem

返回
ContextMenuItem

systemCopyLinkMenuItem

()方法 
public static function systemCopyLinkMenuItem():ContextMenuItem

返回
ContextMenuItem

systemCopyMenuItem

()方法 
public static function systemCopyMenuItem():ContextMenuItem

返回
ContextMenuItem

systemCutMenuItem

()方法 
public static function systemCutMenuItem():ContextMenuItem

返回
ContextMenuItem

systemOpenLinkMenuItem

()方法 
public static function systemOpenLinkMenuItem():ContextMenuItem

返回
ContextMenuItem

systemPasteMenuItem

()方法 
public static function systemPasteMenuItem():ContextMenuItem

返回
ContextMenuItem

systemSelectAllMenuItem

()方法 
public static function systemSelectAllMenuItem():ContextMenuItem

返回
ContextMenuItem
事件详细信息

menuItemSelect

事件
事件对象类型: flash.events.ContextMenuEvent
属性 ContextMenuEvent.type = flash.events.ContextMenuEvent.MENU_ITEM_SELECT

语言版本: ActionScript 3.0
运行时版本: AIR 1.0, Flash Player 9

用户从上下文菜单中选择某一项时调度。用户通过单击其指针设备的辅助按钮来生成上下文菜单。

定义 menuItemSelect 事件对象的 type 属性值。

此事件具有以下属性:

属性
bubblesfalse
cancelablefalse;没有要取消的默认行为。
contextMenuOwner菜单附加到的显示列表对象。
currentTarget当前正在使用某个事件侦听器处理 Event 对象的对象。
mouseTarget用户右键单击以显示上下文菜单的显示列表对象。
target已选定的 ContextMenuItem 对象。target 不一定是显示列表中注册此事件侦听器的对象。请使用 currentTarget 属性来访问显示列表中当前正在处理此事件的对象。
ContextMenuItemExample.as

下例使用 ContextMenuBuiltInItemsExample 类从舞台中删除默认的上下文菜单项,并添加新的菜单项。这是由以下步骤完成的:
  1. 声明属性 myContextMenu,然后将其赋给新的 ContextMenu 对象。
  2. 调用 removeDefaultItems() 方法,该方法将删除所有内置的上下文菜单项(“打印”除外)。
  3. 调用 addCustomMenuItems() 方法,该方法使用数组的 push() 方法将称为 Hello World 的菜单项放入 customItems 数组。
  4. Hello World 上下文菜单项添加到舞台的上下文菜单项列表中。
  5. 将具有文本“在此处右键单击”的 TextField 对象添加到舞台。
package {
    import flash.ui.ContextMenu;
    import flash.ui.ContextMenuItem;
    import flash.ui.ContextMenuBuiltInItems;
    import flash.display.Sprite;
    import flash.text.TextField;

    public class ContextMenuItemExample extends Sprite {
        private var myContextMenu:ContextMenu;

        public function ContextMenuItemExample() {
            myContextMenu = new ContextMenu();
            removeDefaultItems();
            addCustomMenuItems();
            this.contextMenu = myContextMenu;
            addChild(createLabel());
        }

        private function removeDefaultItems():void {
            myContextMenu.hideBuiltInItems();

            var defaultItems:ContextMenuBuiltInItems = myContextMenu.builtInItems;
            defaultItems.print = true;
        }

        private function addCustomMenuItems():void {
            var item:ContextMenuItem = new ContextMenuItem("Hello World");
            myContextMenu.customItems.push(item);
        }
        
        private function createLabel():TextField {
            var txtField:TextField = new TextField();
            txtField.text = "Right Click Here";
            return txtField;
        }
    }
}




[ X ]为什么显示为英语?
《ActionScript 3.0 参考》中的内容以英语显示

《ActionScript 3.0 参考》中的部分内容未翻译成所有语言。当某个语言元素未翻译时,将显示为英语。例如,ga.controls.HelpBox 类未翻译成任何语言。因此在简体中文版的参考中,ga.controls.HelpBox 类显示为英语。