fckselection_ie.js
上传用户:dbstep
上传日期:2022-08-06
资源大小:2803k
文件大小:7k
源码类别:
WEB源码(ASP,PHP,...)
开发平台:
ASP/ASPX
- /*
- * 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 ==
- *
- * Active selection functions. (IE specific implementation)
- */
- // Get the selection type.
- FCKSelection.GetType = function()
- {
- // It is possible that we can still get a text range object even when type=='None' is returned by IE.
- // So we'd better check the object returned by createRange() rather than by looking at the type.
- try
- {
- var ieType = FCKSelection.GetSelection().type ;
- if ( ieType == 'Control' || ieType == 'Text' )
- return ieType ;
- if ( this.GetSelection().createRange().parentElement )
- return 'Text' ;
- }
- catch(e)
- {
- // Nothing to do, it will return None properly.
- }
- return 'None' ;
- } ;
- // Retrieves the selected element (if any), just in the case that a single
- // element (object like and image or a table) is selected.
- FCKSelection.GetSelectedElement = function()
- {
- if ( this.GetType() == 'Control' )
- {
- var oRange = this.GetSelection().createRange() ;
- if ( oRange && oRange.item )
- return this.GetSelection().createRange().item(0) ;
- }
- return null ;
- } ;
- FCKSelection.GetParentElement = function()
- {
- switch ( this.GetType() )
- {
- case 'Control' :
- var el = FCKSelection.GetSelectedElement() ;
- return el ? el.parentElement : null ;
- case 'None' :
- return null ;
- default :
- return this.GetSelection().createRange().parentElement() ;
- }
- } ;
- FCKSelection.GetBoundaryParentElement = function( startBoundary )
- {
- switch ( this.GetType() )
- {
- case 'Control' :
- var el = FCKSelection.GetSelectedElement() ;
- return el ? el.parentElement : null ;
- case 'None' :
- return null ;
- default :
- var doc = FCK.EditorDocument ;
- var range = doc.selection.createRange() ;
- range.collapse( startBoundary !== false ) ;
- var el = range.parentElement() ;
- // It may happen that range is comming from outside "doc", so we
- // must check it (#1204).
- return FCKTools.GetElementDocument( el ) == doc ? el : null ;
- }
- } ;
- FCKSelection.SelectNode = function( node )
- {
- FCK.Focus() ;
- this.GetSelection().empty() ;
- var oRange ;
- try
- {
- // Try to select the node as a control.
- oRange = FCK.EditorDocument.body.createControlRange() ;
- oRange.addElement( node ) ;
- }
- catch(e)
- {
- // If failed, select it as a text range.
- oRange = FCK.EditorDocument.body.createTextRange() ;
- oRange.moveToElementText( node ) ;
- }
- oRange.select() ;
- } ;
- FCKSelection.Collapse = function( toStart )
- {
- FCK.Focus() ;
- if ( this.GetType() == 'Text' )
- {
- var oRange = this.GetSelection().createRange() ;
- oRange.collapse( toStart == null || toStart === true ) ;
- oRange.select() ;
- }
- } ;
- // The "nodeTagName" parameter must be Upper Case.
- FCKSelection.HasAncestorNode = function( nodeTagName )
- {
- var oContainer ;
- if ( this.GetSelection().type == "Control" )
- {
- oContainer = this.GetSelectedElement() ;
- }
- else
- {
- var oRange = this.GetSelection().createRange() ;
- oContainer = oRange.parentElement() ;
- }
- while ( oContainer )
- {
- if ( oContainer.nodeName.IEquals( nodeTagName ) ) return true ;
- oContainer = oContainer.parentNode ;
- }
- return false ;
- } ;
- // The "nodeTagName" parameter must be UPPER CASE.
- // It can be also an array of names
- FCKSelection.MoveToAncestorNode = function( nodeTagName )
- {
- var oNode, oRange ;
- if ( ! FCK.EditorDocument )
- return null ;
- if ( this.GetSelection().type == "Control" )
- {
- oRange = this.GetSelection().createRange() ;
- for ( i = 0 ; i < oRange.length ; i++ )
- {
- if (oRange(i).parentNode)
- {
- oNode = oRange(i).parentNode ;
- break ;
- }
- }
- }
- else
- {
- oRange = this.GetSelection().createRange() ;
- oNode = oRange.parentElement() ;
- }
- while ( oNode && !oNode.nodeName.Equals( nodeTagName ) )
- oNode = oNode.parentNode ;
- return oNode ;
- } ;
- FCKSelection.Delete = function()
- {
- // Gets the actual selection.
- var oSel = this.GetSelection() ;
- // Deletes the actual selection contents.
- if ( oSel.type.toLowerCase() != "none" )
- {
- oSel.clear() ;
- }
- return oSel ;
- } ;
- /**
- * Returns the native selection object.
- */
- FCKSelection.GetSelection = function()
- {
- this.Restore() ;
- return FCK.EditorDocument.selection ;
- }
- FCKSelection.Save = function( lock )
- {
- var editorDocument = FCK.EditorDocument ;
- if ( !editorDocument )
- return ;
- // Avoid saving again a selection while a dialog is open #2616
- if ( this.locked )
- return ;
- this.locked = !!lock ;
- var selection = editorDocument.selection ;
- var range ;
- if ( selection )
- {
- // The call might fail if the document doesn't have the focus (#1801),
- // but we don't want to modify the current selection (#2495) with a call to FCK.Focus() ;
- try {
- range = selection.createRange() ;
- }
- catch(e) {}
- // Ensure that the range comes from the editor document.
- if ( range )
- {
- if ( range.parentElement && FCKTools.GetElementDocument( range.parentElement() ) != editorDocument )
- range = null ;
- else if ( range.item && FCKTools.GetElementDocument( range.item(0) )!= editorDocument )
- range = null ;
- }
- }
- this.SelectionData = range ;
- }
- FCKSelection._GetSelectionDocument = function( selection )
- {
- var range = selection.createRange() ;
- if ( !range )
- return null;
- else if ( range.item )
- return FCKTools.GetElementDocument( range.item( 0 ) ) ;
- else
- return FCKTools.GetElementDocument( range.parentElement() ) ;
- }
- FCKSelection.Restore = function()
- {
- if ( this.SelectionData )
- {
- FCK.IsSelectionChangeLocked = true ;
- try
- {
- // Don't repeat the restore process if the editor document is already selected.
- if ( String( this._GetSelectionDocument( FCK.EditorDocument.selection ).body.contentEditable ) == 'true' )
- {
- FCK.IsSelectionChangeLocked = false ;
- return ;
- }
- this.SelectionData.select() ;
- }
- catch ( e ) {}
- FCK.IsSelectionChangeLocked = false ;
- }
- }
- FCKSelection.Release = function()
- {
- this.locked = false ;
- delete this.SelectionData ;
- }