/* * 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 ; }