Файл: fckeditor/editor/_source/internals/fckselection_gecko.js
Строк: 367
<?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 ==
*
* 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()
{}
?>