Файл: fckeditor/editor/_source/internals/fck_gecko.js
Строк: 744
<?php
/*
* 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 ==
*
* 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 )
{
var cancelHandler = function( evt ){ if ( ! FCK.MouseDownFlag ) evt.returnValue = false ; }
this.EditorDocument.addEventListener( 'dragenter', cancelHandler, true ) ;
this.EditorDocument.addEventListener( 'dragover', cancelHandler, 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) { 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 ) ;
}
?>