BrowzOS/rte/_source/core/command.js

74 lines
1.7 KiB
JavaScript

/*
Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
CKEDITOR.command = function( editor, commandDefinition )
{
this.uiItems = [];
this.exec = function( data )
{
if ( this.state == CKEDITOR.TRISTATE_DISABLED )
return false;
if ( this.editorFocus ) // Give editor focus if necessary (#4355).
editor.focus();
return ( commandDefinition.exec.call( this, editor, data ) !== false );
};
CKEDITOR.tools.extend( this, commandDefinition,
// Defaults
{
modes : { wysiwyg : 1 },
editorFocus : true,
state : CKEDITOR.TRISTATE_OFF
});
// Call the CKEDITOR.event constructor to initialize this instance.
CKEDITOR.event.call( this );
};
CKEDITOR.command.prototype =
{
enable : function()
{
if ( this.state == CKEDITOR.TRISTATE_DISABLED )
this.setState( ( !this.preserveState || ( typeof this.previousState == 'undefined' ) ) ? CKEDITOR.TRISTATE_OFF : this.previousState );
},
disable : function()
{
this.setState( CKEDITOR.TRISTATE_DISABLED );
},
setState : function( newState )
{
// Do nothing if there is no state change.
if ( this.state == newState )
return false;
this.previousState = this.state;
// Set the new state.
this.state = newState;
// Fire the "state" event, so other parts of the code can react to the
// change.
this.fire( 'state' );
return true;
},
toggleState : function()
{
if ( this.state == CKEDITOR.TRISTATE_OFF )
this.setState( CKEDITOR.TRISTATE_ON );
else if ( this.state == CKEDITOR.TRISTATE_ON )
this.setState( CKEDITOR.TRISTATE_OFF );
}
};
CKEDITOR.event.implementOn( CKEDITOR.command.prototype, true );