fck_gecko.js
上传用户:dbstep
上传日期:2022-08-06
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- /*
- * FCKeditor - The text editor for Internet - http://www.fckeditor.net
- * Copyright (C) 2003-2009 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 ==
- *
- * Creation and initialization of the "FCK" object. This is the main
- * object that represents an editor instance.
- * (Gecko specific implementations)
- */
- FCK.Description = "FCKeditor for Gecko Browsers" ;
- FCK.InitializeBehaviors = function()
- {
- // When calling "SetData", the editing area IFRAME gets a fixed height. So we must recalculate it.
- if ( window.onresize ) // Not for Safari/Opera.
- window.onresize() ;
- FCKFocusManager.AddWindow( this.EditorWindow ) ;
- this.ExecOnSelectionChange = function()
- {
- FCK.Events.FireEvent( "OnSelectionChange" ) ;
- }
- this._ExecDrop = function( evt )
- {
- if ( FCK.MouseDownFlag )
- {
- FCK.MouseDownFlag = false ;
- return ;
- }
- if ( FCKConfig.ForcePasteAsPlainText )
- {
- if ( evt.dataTransfer )
- {
- var text = evt.dataTransfer.getData( 'Text' ) ;
- text = FCKTools.HTMLEncode( text ) ;
- text = FCKTools.ProcessLineBreaks( window, FCKConfig, text ) ;
- FCK.InsertHtml( text ) ;
- }
- else if ( FCKConfig.ShowDropDialog )
- FCK.PasteAsPlainText() ;
- evt.preventDefault() ;
- evt.stopPropagation() ;
- }
- }
- this._ExecCheckCaret = function( evt )
- {
- if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG )
- return ;
- if ( evt.type == 'keypress' )
- {
- var keyCode = evt.keyCode ;
- // ignore if positioning key is not pressed.
- // left or up arrow keys need to be processed as well, since <a> links can be expanded in Gecko's editor
- // when the caret moved left or up from another block element below.
- if ( keyCode < 33 || keyCode > 40 )
- return ;
- }
- var blockEmptyStop = function( node )
- {
- if ( node.nodeType != 1 )
- return false ;
- var tag = node.tagName.toLowerCase() ;
- return ( FCKListsLib.BlockElements[tag] || FCKListsLib.EmptyElements[tag] ) ;
- }
- var moveCursor = function()
- {
- var selection = FCKSelection.GetSelection() ;
- var range = selection.getRangeAt(0) ;
- if ( ! range || ! range.collapsed )
- return ;
- var node = range.endContainer ;
- // only perform the patched behavior if we're at the end of a text node.
- if ( node.nodeType != 3 )
- return ;
- if ( node.nodeValue.length != range.endOffset )
- return ;
- // only perform the patched behavior if we're in an <a> tag, or the End key is pressed.
- var parentTag = node.parentNode.tagName.toLowerCase() ;
- if ( ! ( parentTag == 'a' || ( !FCKBrowserInfo.IsOpera && String(node.parentNode.contentEditable) == 'false' ) ||
- ( ! ( FCKListsLib.BlockElements[parentTag] || FCKListsLib.NonEmptyBlockElements[parentTag] )
- && keyCode == 35 ) ) )
- return ;
- // our caret has moved to just after the last character of a text node under an unknown tag, how to proceed?
- // first, see if there are other text nodes by DFS walking from this text node.
- // - if the DFS has scanned all nodes under my parent, then go the next step.
- // - if there is a text node after me but still under my parent, then do nothing and return.
- var nextTextNode = FCKTools.GetNextTextNode( node, node.parentNode, blockEmptyStop ) ;
- if ( nextTextNode )
- return ;
- // we're pretty sure we need to move the caret forcefully from here.
- range = FCK.EditorDocument.createRange() ;
- nextTextNode = FCKTools.GetNextTextNode( node, node.parentNode.parentNode, blockEmptyStop ) ;
- if ( nextTextNode )
- {
- // Opera thinks the dummy empty text node we append beyond the end of <a> nodes occupies a caret
- // position. So if the user presses the left key and we reset the caret position here, the user
- // wouldn't be able to go back.
- if ( FCKBrowserInfo.IsOpera && keyCode == 37 )
- return ;
- // now we want to get out of our current parent node, adopt the next parent, and move the caret to
- // the appropriate text node under our new parent.
- // our new parent might be our current parent's siblings if we are lucky.
- range.setStart( nextTextNode, 0 ) ;
- range.setEnd( nextTextNode, 0 ) ;
- }
- else
- {
- // no suitable next siblings under our grandparent! what to do next?
- while ( node.parentNode
- && node.parentNode != FCK.EditorDocument.body
- && node.parentNode != FCK.EditorDocument.documentElement
- && node == node.parentNode.lastChild
- && ( ! FCKListsLib.BlockElements[node.parentNode.tagName.toLowerCase()]
- && ! FCKListsLib.NonEmptyBlockElements[node.parentNode.tagName.toLowerCase()] ) )
- node = node.parentNode ;
- if ( FCKListsLib.BlockElements[ parentTag ]
- || FCKListsLib.EmptyElements[ parentTag ]
- || node == FCK.EditorDocument.body )
- {
- // if our parent is a block node, move to the end of our parent.
- range.setStart( node, node.childNodes.length ) ;
- range.setEnd( node, node.childNodes.length ) ;
- }
- else
- {
- // things are a little bit more interesting if our parent is not a block node
- // due to the weired ways how Gecko's caret acts...
- var stopNode = node.nextSibling ;
- // find out the next block/empty element at our grandparent, we'll
- // move the caret just before it.
- while ( stopNode )
- {
- if ( stopNode.nodeType != 1 )
- {
- stopNode = stopNode.nextSibling ;
- continue ;
- }
- var stopTag = stopNode.tagName.toLowerCase() ;
- if ( FCKListsLib.BlockElements[stopTag] || FCKListsLib.EmptyElements[stopTag]
- || FCKListsLib.NonEmptyBlockElements[stopTag] )
- break ;
- stopNode = stopNode.nextSibling ;
- }
- // note that the dummy marker below is NEEDED, otherwise the caret's behavior will
- // be broken in Gecko.
- var marker = FCK.EditorDocument.createTextNode( '' ) ;
- if ( stopNode )
- node.parentNode.insertBefore( marker, stopNode ) ;
- else
- node.parentNode.appendChild( marker ) ;
- range.setStart( marker, 0 ) ;
- range.setEnd( marker, 0 ) ;
- }
- }
- selection.removeAllRanges() ;
- selection.addRange( range ) ;
- FCK.Events.FireEvent( "OnSelectionChange" ) ;
- }
- setTimeout( moveCursor, 1 ) ;
- }
- this.ExecOnSelectionChangeTimer = function()
- {
- if ( FCK.LastOnChangeTimer )
- window.clearTimeout( FCK.LastOnChangeTimer ) ;
- FCK.LastOnChangeTimer = window.setTimeout( FCK.ExecOnSelectionChange, 100 ) ;
- }
- this.EditorDocument.addEventListener( 'mouseup', this.ExecOnSelectionChange, false ) ;
- // On Gecko, firing the "OnSelectionChange" event on every key press started to be too much
- // slow. So, a timer has been implemented to solve performance issues when typing to quickly.
- this.EditorDocument.addEventListener( 'keyup', this.ExecOnSelectionChangeTimer, false ) ;
- this._DblClickListener = function( e )
- {
- FCK.OnDoubleClick( e.target ) ;
- e.stopPropagation() ;
- }
- this.EditorDocument.addEventListener( 'dblclick', this._DblClickListener, true ) ;
- // Record changes for the undo system when there are key down events.
- this.EditorDocument.addEventListener( 'keydown', this._KeyDownListener, false ) ;
- // Hooks for data object drops
- if ( FCKBrowserInfo.IsGecko )
- {
- this.EditorWindow.addEventListener( 'dragdrop', this._ExecDrop, true ) ;
- }
- else if ( FCKBrowserInfo.IsSafari )
- {
- this.EditorDocument.addEventListener( 'dragover', function ( evt )
- { if ( !FCK.MouseDownFlag && FCK.Config.ForcePasteAsPlainText ) evt.returnValue = false ; }, true ) ;
- this.EditorDocument.addEventListener( 'drop', this._ExecDrop, true ) ;
- this.EditorDocument.addEventListener( 'mousedown',
- function( ev )
- {
- var element = ev.srcElement ;
- if ( element.nodeName.IEquals( 'IMG', 'HR', 'INPUT', 'TEXTAREA', 'SELECT' ) )
- {
- FCKSelection.SelectNode( element ) ;
- }
- }, true ) ;
- this.EditorDocument.addEventListener( 'mouseup',
- function( ev )
- {
- if ( ev.srcElement.nodeName.IEquals( 'INPUT', 'TEXTAREA', 'SELECT' ) )
- ev.preventDefault()
- }, true ) ;
- this.EditorDocument.addEventListener( 'click',
- function( ev )
- {
- if ( ev.srcElement.nodeName.IEquals( 'INPUT', 'TEXTAREA', 'SELECT' ) )
- ev.preventDefault()
- }, true ) ;
- }
- // Kludge for buggy Gecko caret positioning logic (Bug #393 and #1056)
- if ( FCKBrowserInfo.IsGecko || FCKBrowserInfo.IsOpera )
- {
- this.EditorDocument.addEventListener( 'keypress', this._ExecCheckCaret, false ) ;
- this.EditorDocument.addEventListener( 'click', this._ExecCheckCaret, false ) ;
- }
- // Reset the context menu.
- FCK.ContextMenu._InnerContextMenu.SetMouseClickWindow( FCK.EditorWindow ) ;
- FCK.ContextMenu._InnerContextMenu.AttachToElement( FCK.EditorDocument ) ;
- }
- FCK.MakeEditable = function()
- {
- this.EditingArea.MakeEditable() ;
- }
- // Disable the context menu in the editor (outside the editing area).
- function Document_OnContextMenu( e )
- {
- if ( !e.target._FCKShowContextMenu )
- e.preventDefault() ;
- }
- document.oncontextmenu = Document_OnContextMenu ;
- // GetNamedCommandState overload for Gecko.
- FCK._BaseGetNamedCommandState = FCK.GetNamedCommandState ;
- FCK.GetNamedCommandState = function( commandName )
- {
- switch ( commandName )
- {
- case 'Unlink' :
- return FCKSelection.HasAncestorNode('A') ? FCK_TRISTATE_OFF : FCK_TRISTATE_DISABLED ;
- default :
- return FCK._BaseGetNamedCommandState( commandName ) ;
- }
- }
- // Named commands to be handled by this browsers specific implementation.
- FCK.RedirectNamedCommands =
- {
- Print : true,
- Paste : true
- } ;
- // ExecuteNamedCommand overload for Gecko.
- FCK.ExecuteRedirectedNamedCommand = function( commandName, commandParameter )
- {
- switch ( commandName )
- {
- case 'Print' :
- FCK.EditorWindow.print() ;
- break ;
- case 'Paste' :
- try
- {
- // Force the paste dialog for Safari (#50).
- if ( FCKBrowserInfo.IsSafari )
- throw '' ;
- if ( FCK.Paste() )
- FCK.ExecuteNamedCommand( 'Paste', null, true ) ;
- }
- catch (e) {
- if ( FCKConfig.ForcePasteAsPlainText )
- FCK.PasteAsPlainText() ;
- else
- FCKDialog.OpenDialog( 'FCKDialog_Paste', FCKLang.Paste, 'dialog/fck_paste.html', 400, 330, 'Security' ) ;
- }
- break ;
- default :
- FCK.ExecuteNamedCommand( commandName, commandParameter ) ;
- }
- }
- FCK._ExecPaste = function()
- {
- // Save a snapshot for undo before actually paste the text
- FCKUndo.SaveUndoStep() ;
- if ( FCKConfig.ForcePasteAsPlainText )
- {
- FCK.PasteAsPlainText() ;
- return false ;
- }
- /* For now, the AutoDetectPasteFromWord feature is IE only. */
- return true ;
- }
- //**
- // FCK.InsertHtml: Inserts HTML at the current cursor location. Deletes the
- // selected content if any.
- FCK.InsertHtml = function( html )
- {
- var doc = FCK.EditorDocument,
- range;
- html = FCKConfig.ProtectedSource.Protect( html ) ;
- html = FCK.ProtectEvents( html ) ;
- html = FCK.ProtectUrls( html ) ;
- html = FCK.ProtectTags( html ) ;
- // Save an undo snapshot first.
- FCKUndo.SaveUndoStep() ;
- if ( FCKBrowserInfo.IsGecko )
- {
- html = html.replace( / $/, '$&<span _fcktemp="1"/>' ) ;
- var docFrag = new FCKDocumentFragment( this.EditorDocument ) ;
- docFrag.AppendHtml( html ) ;
- var lastNode = docFrag.RootNode.lastChild ;
- range = new FCKDomRange( this.EditorWindow ) ;
- range.MoveToSelection() ;
- range.DeleteContents() ;
- range.InsertNode( docFrag.RootNode ) ;
- range.MoveToPosition( lastNode, 4 ) ;
- }
- else
- doc.execCommand( 'inserthtml', false, html ) ;
- this.Focus() ;
- // Save the caret position before calling document processor.
- if ( !range )
- {
- range = new FCKDomRange( this.EditorWindow ) ;
- range.MoveToSelection() ;
- }
- var bookmark = range.CreateBookmark() ;
- FCKDocumentProcessor.Process( doc ) ;
- // Restore caret position, ignore any errors in case the document
- // processor removed the bookmark <span>s for some reason.
- try
- {
- range.MoveToBookmark( bookmark ) ;
- range.Select() ;
- }
- catch ( e ) {}
- // For some strange reason the SaveUndoStep() call doesn't activate the undo button at the first InsertHtml() call.
- this.Events.FireEvent( "OnSelectionChange" ) ;
- }
- FCK.PasteAsPlainText = function()
- {
- // TODO: Implement the "Paste as Plain Text" code.
- // If the function is called immediately Firefox 2 does automatically paste the contents as soon as the new dialog is created
- // so we run it in a Timeout and the paste event can be cancelled
- FCKTools.RunFunction( FCKDialog.OpenDialog, FCKDialog, ['FCKDialog_Paste', FCKLang.PasteAsText, 'dialog/fck_paste.html', 400, 330, 'PlainText'] ) ;
- /*
- var sText = FCKTools.HTMLEncode( clipboardData.getData("Text") ) ;
- sText = sText.replace( /n/g, '<BR>' ) ;
- this.InsertHtml( sText ) ;
- */
- }
- /*
- FCK.PasteFromWord = function()
- {
- // TODO: Implement the "Paste as Plain Text" code.
- FCKDialog.OpenDialog( 'FCKDialog_Paste', FCKLang.PasteFromWord, 'dialog/fck_paste.html', 400, 330, 'Word' ) ;
- // FCK.CleanAndPaste( FCK.GetClipboardHTML() ) ;
- }
- */
- FCK.GetClipboardHTML = function()
- {
- return '' ;
- }
- FCK.CreateLink = function( url, noUndo )
- {
- // Creates the array that will be returned. It contains one or more created links (see #220).
- var aCreatedLinks = new Array() ;
- // Only for Safari, a collapsed selection may create a link. All other
- // browser will have no links created. So, we check it here and return
- // immediatelly, having the same cross browser behavior.
- if ( FCKSelection.GetSelection().isCollapsed )
- return aCreatedLinks ;
- FCK.ExecuteNamedCommand( 'Unlink', null, false, !!noUndo ) ;
- if ( url.length > 0 )
- {
- // Generate a temporary name for the link.
- var sTempUrl = 'javascript:void(0);/*' + ( new Date().getTime() ) + '*/' ;
- // Use the internal "CreateLink" command to create the link.
- FCK.ExecuteNamedCommand( 'CreateLink', sTempUrl, false, !!noUndo ) ;
- // Retrieve the just created links using XPath.
- var oLinksInteractor = this.EditorDocument.evaluate("//a[@href='" + sTempUrl + "']", this.EditorDocument.body, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null) ;
- // Add all links to the returning array.
- for ( var i = 0 ; i < oLinksInteractor.snapshotLength ; i++ )
- {
- var oLink = oLinksInteractor.snapshotItem( i ) ;
- oLink.href = url ;
- aCreatedLinks.push( oLink ) ;
- }
- }
- return aCreatedLinks ;
- }
- FCK._FillEmptyBlock = function( emptyBlockNode )
- {
- if ( ! emptyBlockNode || emptyBlockNode.nodeType != 1 )
- return ;
- var nodeTag = emptyBlockNode.tagName.toLowerCase() ;
- if ( nodeTag != 'p' && nodeTag != 'div' )
- return ;
- if ( emptyBlockNode.firstChild )
- return ;
- FCKTools.AppendBogusBr( emptyBlockNode ) ;
- }
- FCK._ExecCheckEmptyBlock = function()
- {
- FCK._FillEmptyBlock( FCK.EditorDocument.body.firstChild ) ;
- var sel = FCKSelection.GetSelection() ;
- if ( !sel || sel.rangeCount < 1 )
- return ;
- var range = sel.getRangeAt( 0 );
- FCK._FillEmptyBlock( range.startContainer ) ;
- }