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/*
* FCKeditor - The text editor for Internet - http://www.fckeditor.net
* Copyright (C) 2003-2007 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 ==
*
* FCKEditingArea Class: renders an editable area.
*/
/**
* @constructor
* @param {String} targetElement The element that will hold the editing area. Any child element present in the target will be deleted.
*/
var FCKEditingArea = function( targetElement )
{
this.TargetElement = targetElement ;
this.Mode = FCK_EDITMODE_WYSIWYG ;
if ( FCK.IECleanup )
FCK.IECleanup.AddItem( this, FCKEditingArea_Cleanup ) ;
}
/**
* @param {String} html The complete HTML for the page, including DOCTYPE and the <html> tag.
*/
FCKEditingArea.prototype.Start = function( html, secondCall )
{
var eTargetElement = this.TargetElement ;
var oTargetDocument = FCKTools.GetElementDocument( eTargetElement ) ;
// Remove all child nodes from the target.
while( eTargetElement.childNodes.length > 0 )
eTargetElement.removeChild( eTargetElement.childNodes[0] ) ;
if ( this.Mode == FCK_EDITMODE_WYSIWYG )
{
// Create the editing area IFRAME.
var oIFrame = this.IFrame = oTargetDocument.createElement( 'iframe' ) ;
oIFrame.src = 'javascript:void(0)' ;
oIFrame.frameBorder = 0 ;
oIFrame.width = oIFrame.height = '100%' ;
// Append the new IFRAME to the target.
eTargetElement.appendChild( oIFrame ) ;
// IE has a bug with the <base> tag... it must have a </base> closer,
// otherwise the all sucessive tags will be set as children nodes of the <base>.
if ( FCKBrowserInfo.IsIE )
html = html.replace( /(<base[^>]*?)\s*\/?>(?!\s*<\/base>)/gi, '$1></base>' ) ;
else if ( !secondCall )
{
// If nothing in the body, place a BOGUS tag so the cursor will appear.
if ( FCKBrowserInfo.IsGecko )
html = html.replace( /(<body[^>]*>)\s*(<\/body>)/i, '$1' + GECKO_BOGUS + '$2' ) ;
// Gecko moves some tags out of the body to the head, so we must use
// innerHTML to set the body contents (SF BUG 1526154).
// Extract the BODY contents from the html.
var oMatch = html.match( FCKRegexLib.BodyContents ) ;
if ( oMatch )
{
html =
oMatch[1] + // This is the HTML until the <body...> tag, inclusive.
'&nbsp;' +
oMatch[3] ; // This is the HTML from the </body> tag, inclusive.
this._BodyHTML = oMatch[2] ; // This is the BODY tag contents.
}
else
this._BodyHTML = html ; // Invalid HTML input.
}
// Get the window and document objects used to interact with the newly created IFRAME.
this.Window = oIFrame.contentWindow ;
// IE: Avoid JavaScript errors thrown by the editing are source (like tags events).
// TODO: This error handler is not being fired.
// this.Window.onerror = function() { alert( 'Error!' ) ; return true ; }
var oDoc = this.Document = this.Window.document ;
oDoc.open() ;
oDoc.write( html ) ;
oDoc.close() ;
// Firefox 1.0.x is buggy... ohh yes... so let's do it two times and it
// will magicaly work.
if ( FCKBrowserInfo.IsGecko10 && !secondCall )
{
this.Start( html, true ) ;
return ;
}
this.Window._FCKEditingArea = this ;
// FF 1.0.x is buggy... we must wait a lot to enable editing because
// sometimes the content simply disappears, for example when pasting
// "bla1!<img src='some_url'>!bla2" in the source and then switching
// back to design.
if ( FCKBrowserInfo.IsGecko10 )
this.Window.setTimeout( FCKEditingArea_CompleteStart, 500 ) ;
else
FCKEditingArea_CompleteStart.call( this.Window ) ;
}
else
{
var eTextarea = this.Textarea = oTargetDocument.createElement( 'textarea' ) ;
eTextarea.className = 'SourceField' ;
eTextarea.dir = 'ltr' ;
eTextarea.style.width = eTextarea.style.height = '100%' ;
eTextarea.style.border = 'none' ;
eTargetElement.appendChild( eTextarea ) ;
eTextarea.value = html ;
// Fire the "OnLoad" event.
FCKTools.RunFunction( this.OnLoad ) ;
}
}
// "this" here is FCKEditingArea.Window
function FCKEditingArea_CompleteStart()
{
// Of Firefox, the DOM takes a little to become available. So we must wait for it in a loop.
if ( !this.document.body )
{
this.setTimeout( FCKEditingArea_CompleteStart, 50 ) ;
return ;
}
var oEditorArea = this._FCKEditingArea ;
oEditorArea.MakeEditable() ;
// Fire the "OnLoad" event.
FCKTools.RunFunction( oEditorArea.OnLoad ) ;
}
FCKEditingArea.prototype.MakeEditable = function()
{
var oDoc = this.Document ;
if ( FCKBrowserInfo.IsIE )
{
oDoc.body.contentEditable = true ;
/* The following commands don't throw errors, but have no effect.
oDoc.execCommand( 'AutoDetect', false, false ) ;
oDoc.execCommand( 'KeepSelection', false, true ) ;
*/
}
else
{
try
{
// Disable Firefox 2 Spell Checker.
oDoc.body.spellcheck = ( this.FFSpellChecker !== false ) ;
if ( this._BodyHTML )
{
oDoc.body.innerHTML = this._BodyHTML ;
this._BodyHTML = null ;
}
oDoc.designMode = 'on' ;
// Tell Gecko to use or not the <SPAN> tag for the bold, italic and underline.
try
{
oDoc.execCommand( 'styleWithCSS', false, FCKConfig.GeckoUseSPAN ) ;
}
catch (e)
{
// As evidenced here, useCSS is deprecated in favor of styleWithCSS:
// http://www.mozilla.org/editor/midas-spec.html
oDoc.execCommand( 'useCSS', false, !FCKConfig.GeckoUseSPAN ) ;
}
// Analysing Firefox 1.5 source code, it seams that there is support for a
// "insertBrOnReturn" command. Applying it gives no error, but it doesn't
// gives the same behavior that you have with IE. It works only if you are
// already inside a paragraph and it doesn't render correctly in the first enter.
// oDoc.execCommand( 'insertBrOnReturn', false, false ) ;
// Tell Gecko (Firefox 1.5+) to enable or not live resizing of objects (by Alfonso Martinez)
oDoc.execCommand( 'enableObjectResizing', false, !FCKConfig.DisableObjectResizing ) ;
// Disable the standard table editing features of Firefox.
oDoc.execCommand( 'enableInlineTableEditing', false, !FCKConfig.DisableFFTableHandles ) ;
}
catch (e) {}
}
}
FCKEditingArea.prototype.Focus = function()
{
try
{
if ( this.Mode == FCK_EDITMODE_WYSIWYG )
{
// The following check is important to avoid IE entering in a focus loop. Ref:
// http://sourceforge.net/tracker/index.php?func=detail&aid=1567060&group_id=75348&atid=543653
if ( FCKBrowserInfo.IsIE && this.Document.hasFocus() )
return ;
if ( FCKBrowserInfo.IsSafari )
this.IFrame.focus() ;
else
{
this.Window.focus() ;
}
}
else
{
var oDoc = FCKTools.GetElementDocument( this.Textarea ) ;
if ( (!oDoc.hasFocus || oDoc.hasFocus() ) && oDoc.activeElement == this.Textarea )
return ;
this.Textarea.focus() ;
}
}
catch(e) {}
}
function FCKEditingArea_Cleanup()
{
this.TargetElement = null ;
this.IFrame = null ;
this.Document = null ;
this.Textarea = null ;
if ( this.Window )
{
this.Window._FCKEditingArea = null ;
this.Window = null ;
}
}

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