mozilla
您的搜索结果

    menuseparator

    Used to create a separator between menu items. Typically drawn as a thin line.

    More information is available in the XUL tutorial.

    Attributes
    acceltext, accesskey, allowevents, command, crop, disabled, image, label, selected, tabindex, value
    Properties
    accessibleType, accessKey, command, control, crop, disabled, image, label, labelElement, parentContainer, selected, tabIndex, value

    Examples

    <menu label="Help">
      <menupopup>
        <menuitem label="Contents"/>
        <menuseparator/>
        <menuitem label="Release Notes"/>
      </menupopup>
    </menu>
    

    Attributes

    acceltext
    Type: string
    Text that appears beside beside the menu label to indicate the shortcut key (accelerator key) to use to invoke the command. If this value is set, it overrides an assigned key set in the key attribute. This attribute does not apply to menus directly on the menubar.
    accesskey
    Type: character
    This should be set to a letter that is used as a shortcut key. This letter should be one of the characters that appears in the label text for the element.

    Example

    Image:XUL_ref_accesskey_attr.png
    <vbox>	
      <label value="Enter Name" accesskey="e" control="myName"/>
      <textbox id="myName"/>
      <button label="Cancel" accesskey="n"/>
      <button label="Ok" accesskey="O"/>
    </vbox>
    

    See also

    label attribute, acceltext attribute

    allowevents
    Type: boolean
    If true, events are passed to children of the element. Otherwise, events are passed to the element only.
    command
    Type: element id
    Set to the id of a command element that is being observed by the element.
    crop
    Type: one of the values below
    If the label of the element is too big to fit in its given space, the text will be cropped on the side specified by the crop attribute. An ellipsis will be used in place of the cropped text. If the box direction is reversed, the cropping is reversed.
    • start: The text will be cropped on its left side.
    • end: The text will be cropped on its right side.
    • left: The text will be cropped on its left side.
    • right: The text will be cropped on its right side.
    • center: The text will be cropped in the middle, showing both the start and end of the text normally.
    • none: The text will be not be cropped using an ellipsis. However, the text will simply be cut off if it is too large. The side depends on the CSS text alignment.
    disabled
    Type: boolean
    Indicates whether the element is disabled or not. If this element is set to true the element is disabled. Disabled elements are usually drawn with grayed-out text. If the element is disabled, it does not respond to user actions, it cannot be focused, and the command event will not fire.


    Image:XUL_ref_attr_disabled.png
    <!-- Checkbox enables/disables the button -->
    <checkbox label="Enable button" 
        onclick="document.getElementById('buttRemove').disabled = this.checked"/>
    <button id="buttRemove" label="Remove All" disabled="true"/>
    
    image
    Type: image URL
    The URL of the image to appear on the element. If this attribute is empty or left out, no image appears. The position of the image is determined by the dir and orient attributes.
    label
    Type: string
    The label that will appear on the element. If this is left out, no text appears.
    label 在元素上显示。如果左侧出界,则不显示任何文字。

    selected
    Type: boolean
    Indicates whether the element is selected or not. This value is read-only. To change the selection, set either the selectedIndex or selectedItem property of the containing element.
    tabindex
    Type: integer
    The tab order of the element. The tab order is the order in which the focus is moved when the user presses the "<kbd>tab</kbd>" key. Elements with a higher tabindex are later in the tab sequence.
    value
    Type: string
    The string attribute allows you to associate a data value with an element. It is not used for any specific purpose, but you can access it with a script for your own use.

    Properties

    accessibleType
    Type: integer
    A value indicating the type of accessibility object for the element.
    accessKey
    Type: character
    Gets and sets the value of the accesskey attribute.

    command
    Type: element id
    Gets and sets the value of the command attribute.

    control
    Type: menu element
    Returns the enclosing menu that the item is inside, if any, or null if there is no enclosing menu.

    crop
    Type: string
    Gets and sets the value of the crop attribute.

    disabled
    Type: boolean
    Gets and sets the value of the disabled attribute.

    image
    Type: image URL
    Gets and sets the value of the image attribute.

    label
    Type: string
    Gets and sets the value of the label attribute.

    labelElement
    Type: label element
    The label element associated with the control. This is set when a label has a control attribute pointing to this element. This property will be null when no label is associated with the control.

    parentContainer
    Type: menu element
    Read only property that returns the containing menu element, or null if there isn't a containing menu.

    {{ languages( { "fr": "fr/XUL/Propri\u00e9t\u00e9s/selected", "ja": "ja/XUL/Property/selected" } ) }}
    {{ XULProp("selected") }} {{ mediawiki['#switch']('<magic name="\"PAGENAME\"/">', XUL:menuitem, XUL:menuseparator = .. '<template><name>' .. Fx_minversion_inline .. '</name><arg>' .. 3 .. '</arg></template>') }}</magic>
    Type: boolean
    This property's value is true if this element is selected, or false if it is not. This property is read only.
    tabIndex
    Type: integer
    Gets and sets the value of the tabindex attribute.

    value
    Type: string
    Gets and sets the value of the value attribute.

    Methods

    Inherited from XUL element
    blur, click, doCommand, focus, getElementsByAttribute

    Inherited from DOM element
    addEventListener(), appendChild(), dispatchEvent(), getAttribute(), getAttributeNode(), getAttributeNodeNS(), getAttributeNS(), getElementsByTagName(), getElementsByTagNameNS(), hasAttribute(), hasAttributeNS(), hasAttributes(), hasChildNodes(), insertBefore(), isSupported(), normalize(), removeAttribute(), removeAttributeNode(), removeAttributeNS(), removeChild(), removeEventListener(), replaceChild(), setAttribute(), setAttributeNode(), setAttributeNodeNS(), setAttributeNS()

    Elements
    menu, menubar, menuitem, menulist, menupopup
    Interfaces
    nsIAccessibleProvider, nsIDOMXULContainerItemElement, nsIDOMXULSelectControlItemElement

     

     

    文档标签和贡献者

    此页面的贡献者有: ziyunfei, Cuimingda
    最后编辑者: ziyunfei,