fckeditingarea.js
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上传日期:2021-11-18
资源大小:39096k
文件大小:6k
源码类别:
OA系统
开发平台:
C#
- /*
- * FCKeditor - The text editor for internet
- * Copyright (C) 2003-2006 Frederico Caldeira Knabben
- *
- * Licensed under the terms of the GNU Lesser General Public License:
- * http://www.opensource.org/licenses/lgpl-license.php
- *
- * For further information visit:
- * http://www.fckeditor.net/
- *
- * "Support Open Source software. What about a donation today?"
- *
- * File Name: fckeditingarea.js
- * FCKEditingArea Class: renders an editable area.
- *
- * File Authors:
- * Frederico Caldeira Knabben (fredck@fckeditor.net)
- */
- /**
- * @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 )
- {
- if ( FCKBrowserInfo.IsGecko )
- html = html.replace( /(<body[^>]*>)s*(</body>)/i, '$1' + GECKO_BOGUS + '$2' ) ;
- // 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>' ) ;
- // 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 ;
- else
- {
- try
- {
- oDoc.designMode = 'on' ;
- // Tell Gecko to use or not the <SPAN> tag for the bold, italic and underline.
- 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 )
- {
- if ( FCKBrowserInfo.IsSafari )
- this.IFrame.focus() ;
- else
- this.Window.focus() ;
- }
- else
- 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 ;
- }
- }