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/*
Copyright (c) 2003-2011, CKSource - Frederico Knabben. All rights reserved.
For licensing, see LICENSE.html or http://ckeditor.com/license
*/
/**
* @file AutoGrow plugin
*/
(function(){
var resizeEditor = function( editor )
{
if ( !editor.window )
return;
var doc = editor.document,
currentHeight = editor.window.getViewPaneSize().height,
newHeight;
// We can not use documentElement to calculate the height for IE (#6061).
// It is not good for IE Quirks, yet using offsetHeight would also not work as expected (#6408).
// We do the same for FF because of the html height workaround (#6341).
if ( CKEDITOR.env.ie || CKEDITOR.env.gecko )
newHeight = doc.getBody().$.scrollHeight + ( CKEDITOR.env.ie && CKEDITOR.env.quirks ? 0 : 24 );
else
newHeight = doc.getDocumentElement().$.offsetHeight;
var min = editor.config.autoGrow_minHeight,
max = editor.config.autoGrow_maxHeight;
( min == undefined ) && ( editor.config.autoGrow_minHeight = min = 200 );
if ( min )
newHeight = Math.max( newHeight, min );
if ( max )
newHeight = Math.min( newHeight, max );
if ( newHeight != currentHeight )
{
newHeight = editor.fire( 'autoGrow', { currentHeight : currentHeight, newHeight : newHeight } ).newHeight;
editor.resize( editor.container.getStyle( 'width' ), newHeight, true );
}
};
CKEDITOR.plugins.add( 'autogrow',
{
init : function( editor )
{
for ( var eventName in { contentDom:1, key:1, selectionChange:1, insertElement:1 } )
{
editor.on( eventName, function( evt )
{
var maximize = editor.getCommand( 'maximize' );
// Some time is required for insertHtml, and it gives other events better performance as well.
if ( evt.editor.mode == 'wysiwyg' &&
// Disable autogrow when the editor is maximized .(#6339)
( !maximize || maximize.state != CKEDITOR.TRISTATE_ON ) )
{
setTimeout( function(){ resizeEditor( evt.editor ); }, 100 );
}
});
}
}
});
})();
/**
* The minimum height to which the editor can reach using AutoGrow.
* @name CKEDITOR.config.autoGrow_minHeight
* @type Number
* @default 200
* @since 3.4
* @example
* config.autoGrow_minHeight = 300;
*/
/**
* The maximum height to which the editor can reach using AutoGrow. Zero means unlimited.
* @name CKEDITOR.config.autoGrow_maxHeight
* @type Number
* @default 0
* @since 3.4
* @example
* config.autoGrow_maxHeight = 400;
*/
/**
* Fired when the AutoGrow plugin is about to change the size of the editor.
* @name CKEDITOR.editor#autogrow
* @event
* @param {Number} data.currentHeight The current height of the editor (before the resizing).
* @param {Number} data.newHeight The new height of the editor (after the resizing). It can be changed
* to determine another height to be used instead.
*/
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