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/* * FCKeditor - The text editor for Internet - http://www.fckeditor.net * Copyright (C) 2003-2010 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. (Gecko specific implementation) */ // Get the selection type (like document.select.type in IE). FCKSelection.GetType = function() { // By default set the type to "Text". var type = 'Text' ; // Check if the actual selection is a Control (IMG, TABLE, HR, etc...). var sel ; try { sel = this.GetSelection() ; } catch (e) {} if ( sel && sel.rangeCount == 1 ) { var range = sel.getRangeAt(0) ; if ( range.startContainer == range.endContainer && ( range.endOffset - range.startOffset ) == 1 && range.startContainer.nodeType == 1 && FCKListsLib.StyleObjectElements[ range.startContainer.childNodes[ range.startOffset ].nodeName.toLowerCase() ] ) { type = 'Control' ; } } return type ; } // 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() { var selection = !!FCK.EditorWindow && this.GetSelection() ; if ( !selection || selection.rangeCount < 1 ) return null ; var range = selection.getRangeAt( 0 ) ; if ( range.startContainer != range.endContainer || range.startContainer.nodeType != 1 || range.startOffset != range.endOffset - 1 ) return null ; var node = range.startContainer.childNodes[ range.startOffset ] ; if ( node.nodeType != 1 ) return null ; return node ; } FCKSelection.GetParentElement = function() { if ( this.GetType() == 'Control' ) return FCKSelection.GetSelectedElement().parentNode ; else { var oSel = this.GetSelection() ; if ( oSel ) { // if anchorNode == focusNode, see if the selection is text only or including nodes. // if text only, return the parent node. // if the selection includes DOM nodes, then the anchorNode is the nearest container. if ( oSel.anchorNode && oSel.anchorNode == oSel.focusNode ) { var oRange = oSel.getRangeAt( 0 ) ; if ( oRange.collapsed || oRange.startContainer.nodeType == 3 ) return oSel.anchorNode.parentNode ; else return oSel.anchorNode ; } // looks like we're having a large selection here. To make the behavior same as IE's TextRange.parentElement(), // we need to find the nearest ancestor node which encapsulates both the beginning and the end of the selection. // TODO: A simpler logic can be found. var anchorPath = new FCKElementPath( oSel.anchorNode ) ; var focusPath = new FCKElementPath( oSel.focusNode ) ; var deepPath = null ; var shallowPath = null ; if ( anchorPath.Elements.length > focusPath.Elements.length ) { deepPath = anchorPath.Elements ; shallowPath = focusPath.Elements ; } else { deepPath = focusPath.Elements ; shallowPath = anchorPath.Elements ; } var deepPathBase = deepPath.length - shallowPath.length ; for( var i = 0 ; i < shallowPath.length ; i++) { if ( deepPath[deepPathBase + i] == shallowPath[i]) return shallowPath[i]; } return null ; } } return null ; } FCKSelection.GetBoundaryParentElement = function( startBoundary ) { if ( ! FCK.EditorWindow ) return null ; if ( this.GetType() == 'Control' ) return FCKSelection.GetSelectedElement().parentNode ; else { var oSel = this.GetSelection() ; if ( oSel && oSel.rangeCount > 0 ) { var range = oSel.getRangeAt( startBoundary ? 0 : ( oSel.rangeCount - 1 ) ) ; var element = startBoundary ? range.startContainer : range.endContainer ; return ( element.nodeType == 1 ? element : element.parentNode ) ; } } return null ; } FCKSelection.SelectNode = function( element ) { var oRange = FCK.EditorDocument.createRange() ; oRange.selectNode( element ) ; var oSel = this.GetSelection() ; oSel.removeAllRanges() ; oSel.addRange( oRange ) ; } FCKSelection.Collapse = function( toStart ) { var oSel = this.GetSelection() ; if ( toStart == null || toStart === true ) oSel.collapseToStart() ; else oSel.collapseToEnd() ; } // The "nodeTagName" parameter must be Upper Case. FCKSelection.HasAncestorNode = function( nodeTagName ) { var oContainer = this.GetSelectedElement() ; if ( ! oContainer && FCK.EditorWindow ) { try { oContainer = this.GetSelection().getRangeAt(0).startContainer ; } catch(e){} } while ( oContainer ) { if ( oContainer.nodeType == 1 && oContainer.nodeName.IEquals( nodeTagName ) ) return true ; oContainer = oContainer.parentNode ; } return false ; } // The "nodeTagName" parameter must be Upper Case. FCKSelection.MoveToAncestorNode = function( nodeTagName ) { var oNode ; var oContainer = this.GetSelectedElement() ; if ( ! oContainer ) oContainer = this.GetSelection().getRangeAt(0).startContainer ; while ( oContainer ) { if ( oContainer.nodeName.IEquals( nodeTagName ) ) return oContainer ; oContainer = oContainer.parentNode ; } return null ; } FCKSelection.Delete = function() { // Gets the actual selection. var oSel = this.GetSelection() ; // Deletes the actual selection contents. for ( var i = 0 ; i < oSel.rangeCount ; i++ ) { oSel.getRangeAt(i).deleteContents() ; } return oSel ; } /** * Returns the native selection object. */ FCKSelection.GetSelection = function() { return FCK.EditorWindow.getSelection() ; } // The following are IE only features (we don't need then in other browsers // currently). FCKSelection.Save = function() {} FCKSelection.Restore = function() {} FCKSelection.Release = function() {}