CKEditor 4 Documentation

CKEDITOR.event

Mixed into

Files

Creates an event class instance. This constructor is rarely used, being the implementOn function used in class prototypes directly instead.

This is a base class for classes and objects that require event handling features.

Do not confuse this class with CKEDITOR.dom.event which is instead used for DOM events. The CKEDITOR.event class implements the internal event system used by the CKEditor to fire API related events.

Properties

Defined By

Static properties

CKEDITOR.event
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: Booleanstatic

Methods

Defined By

Instance methods

Creates an event class instance. ...

Creates an event class instance.

Returns

CKEDITOR.event
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( )
Register event handler under the capturing stage on supported target. ...

Register event handler under the capturing stage on supported target.

CKEDITOR.event
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( name, meta )
Predefine some intrinsic properties on a specific event name. ...

Predefine some intrinsic properties on a specific event name.

Parameters

  • name : String

    The event name

  • meta : Object
    • errorProof : (optional)

      Whether the event firing should catch error thrown from a per listener call.

      Defaults to: false

CKEDITOR.event
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( eventName, [data], [editor] ) : Boolean/Object
Fires an specific event in the object. ...

Fires an specific event in the object. All registered listeners are called at this point.

someObject.on( 'someEvent', function() { ... } );
someObject.on( 'someEvent', function() { ... } );
someObject.fire( 'someEvent' );             // Both listeners are called.

someObject.on( 'someEvent', function( event ) {
    alert( event.data );                    // 'Example'
} );
someObject.fire( 'someEvent', 'Example' );

Parameters

Returns

  • Boolean/Object

    A boolean indicating that the event is to be canceled, or data returned by one of the listeners.

CKEDITOR.event
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( eventName, [data], [editor] ) : Boolean/Object
Fires an specific event in the object, releasing all listeners registered to that event. ...

Fires an specific event in the object, releasing all listeners registered to that event. The same listeners are not called again on successive calls of it or of fire.

someObject.on( 'someEvent', function() { ... } );
someObject.fire( 'someEvent' );         // Above listener called.
someObject.fireOnce( 'someEvent' );     // Above listener called.
someObject.fire( 'someEvent' );         // No listeners called.

Parameters

Returns

  • Boolean/Object

    A booloan indicating that the event is to be canceled, or data returned by one of the listeners.

CKEDITOR.event
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( eventName ) : Boolean
Checks if there is any listener registered to a given event. ...

Checks if there is any listener registered to a given event.

var myListener = function() { ... };
someObject.on( 'someEvent', myListener );
alert( someObject.hasListeners( 'someEvent' ) );    // true
alert( someObject.hasListeners( 'noEvent' ) );      // false

Parameters

  • eventName : String

    The event name.

Returns

  • Boolean
CKEDITOR.event
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( eventName, listenerFunction, [scopeObj], [listenerData], [priority] ) : Object
Registers a listener to a specific event in the current object. ...

Registers a listener to a specific event in the current object.

someObject.on( 'someEvent', function() {
    alert( this == someObject );        // true
} );

someObject.on( 'someEvent', function() {
    alert( this == anotherObject );     // true
}, anotherObject );

someObject.on( 'someEvent', function( event ) {
    alert( event.listenerData );        // 'Example'
}, null, 'Example' );

someObject.on( 'someEvent', function() { ... } );                       // 2nd called
someObject.on( 'someEvent', function() { ... }, null, null, 100 );      // 3rd called
someObject.on( 'someEvent', function() { ... }, null, null, 1 );        // 1st called

Parameters

  • eventName : String

    The event name to which listen.

  • listenerFunction : Function

    The function listening to the event. A single CKEDITOR.eventInfo object instanced is passed to this function containing all the event data.

  • scopeObj : Object (optional)

    The object used to scope the listener call (the this object). If omitted, the current object is used.

  • listenerData : Object (optional)

    Data to be sent as the CKEDITOR.eventInfo.listenerData when calling the listener.

  • priority : Number (optional)

    The listener priority. Lower priority listeners are called first. Listeners with the same priority value are called in registration order.

    Defaults to: 10

Returns

  • Object

    An object containing the removeListener function, which can be used to remove the listener at any time.

CKEDITOR.event
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( )
Similiar with on but the listener will be called only once upon the next event firing. ...

Similiar with on but the listener will be called only once upon the next event firing.

CKEDITOR.event.on

Remove all existing listeners on this object, for cleanup purpose. ...

Remove all existing listeners on this object, for cleanup purpose.

CKEDITOR.event
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( eventName, listenerFunction )
Unregisters a listener function from being called at the specified event. ...

Unregisters a listener function from being called at the specified event. No errors are thrown if the listener has not been registered previously.

var myListener = function() { ... };
someObject.on( 'someEvent', myListener );
someObject.fire( 'someEvent' );                 // myListener called.
someObject.removeListener( 'someEvent', myListener );
someObject.fire( 'someEvent' );                 // myListener not called.

Parameters

  • eventName : String

    The event name.

  • listenerFunction : Function

    The listener function to unregister.

Defined By

Static methods

CKEDITOR.event
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( targetObject )static
Implements the CKEDITOR.event features in an object. ...

Implements the CKEDITOR.event features in an object.

var myObject = { message: 'Example' };
CKEDITOR.event.implementOn( myObject );

myObject.on( 'testEvent', function() {
    alert( this.message );
} );
myObject.fire( 'testEvent' ); // 'Example'

Parameters

  • targetObject : Object

    The object into which implement the features.