egroupware/phpgwapi/js/fckeditor/editor/plugins/autogrow/fckplugin.js

100 lines
2.7 KiB
JavaScript

/*
* FCKeditor - The text editor for Internet - http://www.fckeditor.net
* Copyright (C) 2003-2008 Frederico Caldeira Knabben
*
* == BEGIN LICENSE ==
*
* Licensed under the terms of any of the following licenses at your
* choice:
*
* - GNU General Public License Version 2 or later (the "GPL")
* http://www.gnu.org/licenses/gpl.html
*
* - GNU Lesser General Public License Version 2.1 or later (the "LGPL")
* http://www.gnu.org/licenses/lgpl.html
*
* - Mozilla Public License Version 1.1 or later (the "MPL")
* http://www.mozilla.org/MPL/MPL-1.1.html
*
* == END LICENSE ==
*
* Plugin: automatically resizes the editor until a configurable maximun
* height (FCKConfig.AutoGrowMax), based on its contents.
*/
var FCKAutoGrow_Min = window.frameElement.offsetHeight ;
function FCKAutoGrow_Check()
{
var oInnerDoc = FCK.EditorDocument ;
var iFrameHeight, iInnerHeight ;
if ( FCKBrowserInfo.IsIE )
{
iFrameHeight = FCK.EditorWindow.frameElement.offsetHeight ;
iInnerHeight = oInnerDoc.body.scrollHeight ;
}
else
{
iFrameHeight = FCK.EditorWindow.innerHeight ;
iInnerHeight = oInnerDoc.body.offsetHeight ;
}
var iDiff = iInnerHeight - iFrameHeight ;
if ( iDiff != 0 )
{
var iMainFrameSize = window.frameElement.offsetHeight ;
if ( iDiff > 0 && iMainFrameSize < FCKConfig.AutoGrowMax )
{
iMainFrameSize += iDiff ;
if ( iMainFrameSize > FCKConfig.AutoGrowMax )
iMainFrameSize = FCKConfig.AutoGrowMax ;
}
else if ( iDiff < 0 && iMainFrameSize > FCKAutoGrow_Min )
{
iMainFrameSize += iDiff ;
if ( iMainFrameSize < FCKAutoGrow_Min )
iMainFrameSize = FCKAutoGrow_Min ;
}
else
return ;
window.frameElement.height = iMainFrameSize ;
// Gecko browsers use an onresize handler to update the innermost
// IFRAME's height. If the document is modified before the onresize
// is triggered, the plugin will miscalculate the new height. Thus,
// forcibly trigger onresize. #1336
if ( typeof window.onresize == 'function' )
window.onresize() ;
}
}
FCK.AttachToOnSelectionChange( FCKAutoGrow_Check ) ;
function FCKAutoGrow_SetListeners()
{
if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG )
return ;
FCK.EditorWindow.attachEvent( 'onscroll', FCKAutoGrow_Check ) ;
FCK.EditorDocument.attachEvent( 'onkeyup', FCKAutoGrow_Check ) ;
}
if ( FCKBrowserInfo.IsIE )
{
// FCKAutoGrow_SetListeners() ;
FCK.Events.AttachEvent( 'OnAfterSetHTML', FCKAutoGrow_SetListeners ) ;
}
function FCKAutoGrow_CheckEditorStatus( sender, status )
{
if ( status == FCK_STATUS_COMPLETE )
FCKAutoGrow_Check() ;
}
FCK.Events.AttachEvent( 'OnStatusChange', FCKAutoGrow_CheckEditorStatus ) ;