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Class Ext.menu.CheckItem

Package:Ext.menu
Class:CheckItem
Extends:Item
Defined In:CheckItem.js
Adds a menu item that contains a checkbox by default, but can also be part of a radio group.

Properties   -  Methods   -  Events   -  Config Options

Public Properties

Property Defined By
  disabled : Object Component
true if this component is disabled. Read-only.
  disabledClass : Object Component
CSS class added to the component when it is disabled.
  hidden : Object Component
true if this component is hidden. Read-only.
  rendered : Object Component
true if this component has been rendered. Read-only.

Public Methods

Method Defined By
  CheckItem(Object config) CheckItem
Creates a new CheckItem
  addEvents(Object object) : void Observable
Copies any events from the passed object onto this object if they do not already exist. The passed object must also ...
  addListener(String eventName, Function handler, [Object scope], [Object options]) : void Observable
Appends an event handler to this component
  disable() : void Component
Disable this component
  enable() : void Component
Enable this component
  fireEvent(String eventName, Object... args) : Boolean Observable
Fires the specified event with the passed parameters (minus the event name).
  focus(Boolean selectText) : void Component
Try to focus this component
  getEl() : Ext.Element Component
Returns the underlying Ext.Element
  getId() : String Component
Returns the id of this component
  hasListener(String eventName) : Boolean Observable
Checks to see if this object is currently listening for a specified event
  hide() : void Component
Hide this component
  isVisible() : void Component
Returns true if this component is visible
  on(String eventName, Function handler, [Object options]) : void Observable
Appends an event handler to this element (shorthand for addListener)
  purgeListeners() : void Observable
Removes all listeners for this object
  removeListener(String eventName, Function handler, [Object scope]) : void Observable
Removes a listener
  render([String/HTMLElement/Element container]) : void Component
If this is a lazy rendering component, render it to its container element
  setChecked(Boolean checked, [Boolean suppressEvent]) : void CheckItem
Set the checked state of this item
  setDisabled(Boolean disabled) : void Component
Convenience function for setting disabled/enabled by boolean
  setText(String text) : void Item
Sets the text to display in this menu item
  setVisible(Boolean visible) : void Component
Convenience function to hide or show this component by boolean
  show() : void Component
Show this component
  un(String eventName, Function handler, [Object scope]) : void Observable
Removes a listener (shorthand for removeListener)

Public Events

Event Defined By
  activate : (Ext.menu.BaseItem this) BaseItem
Fires when this item is activated
  beforecheckchange : (Ext.menu.CheckItem this, Boolean checked) CheckItem
Fires before the checked value is set, providing an opportunity to cancel if needed
  beforedestroy : (Ext.Component this) Component
Fires before the component is destroyed
  beforehide : (Ext.Component this) Component
Fires before the component is hidden
  beforerender : (Ext.Component this) Component
Fires before the component is rendered
  beforeshow : (Ext.Component this) Component
Fires before the component is shown
  checkchange : (Ext.menu.CheckItem this, Boolean checked) CheckItem
Fires after the checked value has been set
  click : (Ext.menu.BaseItem this, Ext.EventObject e) BaseItem
Fires when this item is clicked
  deactivate : (Ext.menu.BaseItem this) BaseItem
Fires when this item is deactivated
  destroy : (Ext.Component this) Component
Fires after the component is destroyed
  disable : (Ext.Component this) Component
Fires after the component is disabled
  enable : (Ext.Component this) Component
Fires after the component is enabled
  hide : (Ext.Component this) Component
Fires after the component is hidden
  render : (Ext.Component this) Component
Fires after the component is rendered
  show : (Ext.Component this) Component
Fires after the component is shown

Config Options

Config Options Defined By
  activeClass : String BaseItem
The CSS class to use when the item becomes activated (defaults to "x-menu-item-active")
  canActivate : Boolean BaseItem
True if this item can be visually activated (defaults to false)
  checked : Boolean CheckItem
True to initialize this checkbox as checked (defaults to false). Note that if this checkbox is part of a radio group ...
  group : String CheckItem
All check items with the same group name will automatically be grouped into a single-select radio button group (defau...
  groupClass : String CheckItem
The default CSS class to use for radio group check items (defaults to "x-menu-group-item")
  handler : Function BaseItem
A function that will handle the click event of this menu item (defaults to undefined)
  hideDelay : Number BaseItem
Length of time in milliseconds to wait before hiding after a click (defaults to 100)
  hideOnClick : Boolean BaseItem
True to hide the containing menu after this item is clicked (defaults to true)
  icon : String Item
The path to an icon to display in this menu item (defaults to Ext.BLANK_IMAGE_URL)
  itemCls : String CheckItem
The default CSS class to use for check items (defaults to "x-menu-item x-menu-check-item")

Property Details

disabled

public Object disabled
true if this component is disabled. Read-only.
This property is defined by Component.

disabledClass

public Object disabledClass
CSS class added to the component when it is disabled.
This property is defined by Component.

hidden

public Object hidden
true if this component is hidden. Read-only.
This property is defined by Component.

rendered

public Object rendered
true if this component has been rendered. Read-only.
This property is defined by Component.

Constructor Details

CheckItem

public function CheckItem(Object config)
Creates a new CheckItem
Parameters:
  • config : Object
    Configuration options

Method Details

addEvents

public function addEvents(Object object)
Copies any events from the passed object onto this object if they do not already exist. The passed object must also inherit from Observable for this method to have any effect.
Parameters:
  • object : Object
    The object from which to copy events
Returns:
  • void
This method is defined by Observable.

addListener

public function addListener(String eventName, Function handler, [Object scope], [Object options])
Appends an event handler to this component
Parameters:
  • eventName : String
    The type of event to listen for
  • handler : Function
    The method the event invokes
  • scope : Object
    (optional) The scope in which to execute the handler function. The handler function's "this" context.
  • options : Object
    (optional) An object containing handler configuration properties. This may contain any of the following properties:
    • scope {Object} The scope in which to execute the handler function. The handler function's "this" context.
    • delegate {String} A simple selector to filter the target or look for a descendant of the target
    • stopEvent {Boolean} True to stop the event. That is stop propagation, and prevent the default action.
    • preventDefault {Boolean} True to prevent the default action
    • stopPropagation {Boolean} True to prevent event propagation
    • normalized {Boolean} False to pass a browser event to the handler function instead of an Ext.EventObject
    • delay {Number} The number of milliseconds to delay the invocation of the handler after te event fires.
    • single {Boolean} True to add a handler to handle just the next firing of the event, and then remove itself.
    • buffer {Number} Causes the handler to be scheduled to run in an Ext.util.DelayedTask delayed by the specified number of milliseconds. If the event fires again within that time, the original handler is not invoked, but the new handler is scheduled in its place.

    Combining Options
    Using the options argument, it is possible to combine different types of listeners:

    A normalized, delayed, one-time listener that auto stops the event and passes a custom argument (forumId)

    Code: 
    el.on('click', this.onClick, this, { single: true, delay: 100, stopEvent : true, forumId: 4 });

    The method also allows for a single argument to be passed which is a config object containing properties which specify multiple handlers.

    Attaching multiple handlers in 1 call
    Code: 

    el.on({ 'click' : { fn: this.onClick scope: this, delay: 100 }, 'mouseover' : { fn: this.onMouseOver scope: this }, 'mouseout' : { fn: this.onMouseOut scope: this } });

    Or a shorthand syntax:
    Code: 

    el.on({ 'click' : this.onClick, 'mouseover' : this.onMouseOver, 'mouseout' : this.onMouseOut scope: this });
Returns:
  • void
This method is defined by Observable.

disable

public function disable()
Disable this component
Parameters:
  • None.
Returns:
  • void
This method is defined by Component.

enable

public function enable()
Enable this component
Parameters:
  • None.
Returns:
  • void
This method is defined by Component.

fireEvent

public function fireEvent(String eventName, Object... args)
Fires the specified event with the passed parameters (minus the event name).
Parameters:
  • eventName : String
  • args : Object...
    Variable number of parameters are passed to handlers
Returns:
  • Boolean
    returns false if any of the handlers return false otherwise it returns true
This method is defined by Observable.

focus

public function focus(Boolean selectText)
Try to focus this component
Parameters:
  • selectText : Boolean
    True to also select the text in this component (if applicable)
Returns:
  • void
This method is defined by Component.

getEl

public function getEl()
Returns the underlying Ext.Element
Parameters:
  • None.
Returns:
  • Ext.Element
    The element
This method is defined by Component.

getId

public function getId()
Returns the id of this component
Parameters:
  • None.
Returns:
  • String
This method is defined by Component.

hasListener

public function hasListener(String eventName)
Checks to see if this object is currently listening for a specified event
Parameters:
  • eventName : String
    The name of the event to check for
Returns:
  • Boolean
    True if the event is being listened for, else false
This method is defined by Observable.

hide

public function hide()
Hide this component
Parameters:
  • None.
Returns:
  • void
This method is defined by Component.

isVisible

public function isVisible()
Returns true if this component is visible
Parameters:
  • None.
Returns:
  • void
This method is defined by Component.

on

public function on(String eventName, Function handler, [Object options])
Appends an event handler to this element (shorthand for addListener)
Parameters:
  • eventName : String
    The type of event to listen for
  • handler : Function
    The method the event invokes
  • options : Object
    (optional)
Returns:
  • void
This method is defined by Observable.

purgeListeners

public function purgeListeners()
Removes all listeners for this object
Parameters:
  • None.
Returns:
  • void
This method is defined by Observable.

removeListener

public function removeListener(String eventName, Function handler, [Object scope])
Removes a listener
Parameters:
  • eventName : String
    The type of event to listen for
  • handler : Function
    The handler to remove
  • scope : Object
    (optional) The scope (this object) for the handler
Returns:
  • void
This method is defined by Observable.

render

public function render([String/HTMLElement/Element container])
If this is a lazy rendering component, render it to its container element
Parameters:
  • container : String/HTMLElement/Element
    (optional) The element this component should be rendered into. If it is being applied to existing markup, this should be left off.
Returns:
  • void
This method is defined by Component.

setChecked

public function setChecked(Boolean checked, [Boolean suppressEvent])
Set the checked state of this item
Parameters:
  • checked : Boolean
    The new checked value
  • suppressEvent : Boolean
    (optional) True to prevent the checkchange event from firing (defaults to false)
Returns:
  • void
This method is defined by CheckItem.

setDisabled

public function setDisabled(Boolean disabled)
Convenience function for setting disabled/enabled by boolean
Parameters:
  • disabled : Boolean
Returns:
  • void
This method is defined by Component.

setText

public function setText(String text)
Sets the text to display in this menu item
Parameters:
  • text : String
    The text to display
Returns:
  • void
This method is defined by Item.

setVisible

public function setVisible(Boolean visible)
Convenience function to hide or show this component by boolean
Parameters:
  • visible : Boolean
    True to show, false to hide
Returns:
  • void
This method is defined by Component.

show

public function show()
Show this component
Parameters:
  • None.
Returns:
  • void
This method is defined by Component.

un

public function un(String eventName, Function handler, [Object scope])
Removes a listener (shorthand for removeListener)
Parameters:
  • eventName : String
    The type of event to listen for
  • handler : Function
    The handler to remove
  • scope : Object
    (optional) The scope (this object) for the handler
Returns:
  • void
This method is defined by Observable.

Event Details

activate

public event activate
Fires when this item is activated
Subscribers will be called with the following parameters:
  • this : Ext.menu.BaseItem
This event is defined by BaseItem.

beforecheckchange

public event beforecheckchange
Fires before the checked value is set, providing an opportunity to cancel if needed
Subscribers will be called with the following parameters:
  • this : Ext.menu.CheckItem
  • checked : Boolean
    The new checked value that will be set
This event is defined by CheckItem.

beforedestroy

public event beforedestroy
Fires before the component is destroyed
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

beforehide

public event beforehide
Fires before the component is hidden
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

beforerender

public event beforerender
Fires before the component is rendered
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

beforeshow

public event beforeshow
Fires before the component is shown
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

checkchange

public event checkchange
Fires after the checked value has been set
Subscribers will be called with the following parameters:
  • this : Ext.menu.CheckItem
  • checked : Boolean
    The checked value that was set
This event is defined by CheckItem.

click

public event click
Fires when this item is clicked
Subscribers will be called with the following parameters:
  • this : Ext.menu.BaseItem
  • e : Ext.EventObject
This event is defined by BaseItem.

deactivate

public event deactivate
Fires when this item is deactivated
Subscribers will be called with the following parameters:
  • this : Ext.menu.BaseItem
This event is defined by BaseItem.

destroy

public event destroy
Fires after the component is destroyed
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

disable

public event disable
Fires after the component is disabled
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

enable

public event enable
Fires after the component is enabled
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

hide

public event hide
Fires after the component is hidden
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

render

public event render
Fires after the component is rendered
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

show

public event show
Fires after the component is shown
Subscribers will be called with the following parameters:
  • this : Ext.Component
This event is defined by Component.

Config Details

activeClass

activeClass : String
The CSS class to use when the item becomes activated (defaults to "x-menu-item-active")
This config option is defined by BaseItem.

canActivate

canActivate : Boolean
True if this item can be visually activated (defaults to false)
This config option is defined by BaseItem.

checked

checked : Boolean
True to initialize this checkbox as checked (defaults to false). Note that if this checkbox is part of a radio group (group = true) only the last item in the group that is initialized with checked = true will be rendered as checked.
This config option is defined by CheckItem.

group

group : String
All check items with the same group name will automatically be grouped into a single-select radio button group (defaults to '')
This config option is defined by CheckItem.

groupClass

groupClass : String
The default CSS class to use for radio group check items (defaults to "x-menu-group-item")
This config option is defined by CheckItem.

handler

handler : Function
A function that will handle the click event of this menu item (defaults to undefined)
This config option is defined by BaseItem.

hideDelay

hideDelay : Number
Length of time in milliseconds to wait before hiding after a click (defaults to 100)
This config option is defined by BaseItem.

hideOnClick

hideOnClick : Boolean
True to hide the containing menu after this item is clicked (defaults to true)
This config option is defined by BaseItem.

icon

icon : String
The path to an icon to display in this menu item (defaults to Ext.BLANK_IMAGE_URL)
This config option is defined by Item.

itemCls

itemCls : String
The default CSS class to use for check items (defaults to "x-menu-item x-menu-check-item")
This config option is defined by CheckItem.
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