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fckplugin.js
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/*
* FCKeditor - The text editor for Internet - http://www.fckeditor.net
* Copyright (C) 2003-2007 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 ==
*
* Plugin to insert "Placeholders" in the editor.
*/
// Register the related command.
FCKCommands.RegisterCommand( 'Placeholder', new FCKDialogCommand( 'Placeholder', FCKLang.PlaceholderDlgTitle, FCKPlugins.Items['placeholder'].Path + 'fck_placeholder.html', 340, 170 ) ) ;
// Create the "Plaholder" toolbar button.
var oPlaceholderItem = new FCKToolbarButton( 'Placeholder', FCKLang.PlaceholderBtn ) ;
oPlaceholderItem.IconPath = FCKPlugins.Items['placeholder'].Path + 'placeholder.gif' ;
FCKToolbarItems.RegisterItem( 'Placeholder', oPlaceholderItem ) ;
// The object used for all Placeholder operations.
var FCKPlaceholders = new Object() ;
// Add a new placeholder at the actual selection.
FCKPlaceholders.Add = function( name )
{
var oSpan = FCK.CreateElement( 'SPAN' ) ;
this.SetupSpan( oSpan, name ) ;
}
FCKPlaceholders.SetupSpan = function( span, name )
{
span.innerHTML = '[[ ' + name + ' ]]' ;
span.style.backgroundColor = '#ffff00' ;
span.style.color = '#000000' ;
if ( FCKBrowserInfo.IsGecko )
span.style.cursor = 'default' ;
span._fckplaceholder = name ;
span.contentEditable = false ;
// To avoid it to be resized.
span.onresizestart = function()
{
FCK.EditorWindow.event.returnValue = false ;
return false ;
}
}
// On Gecko we must do this trick so the user select all the SPAN when clicking on it.
FCKPlaceholders._SetupClickListener = function()
{
FCKPlaceholders._ClickListener = function( e )
{
if ( e.target.tagName == 'SPAN' && e.target._fckplaceholder )
FCKSelection.SelectNode( e.target ) ;
}
FCK.EditorDocument.addEventListener( 'click', FCKPlaceholders._ClickListener, true ) ;
}
// Open the Placeholder dialog on double click.
FCKPlaceholders.OnDoubleClick = function( span )
{
if ( span.tagName == 'SPAN' && span._fckplaceholder )
FCKCommands.GetCommand( 'Placeholder' ).Execute() ;
}
FCK.RegisterDoubleClickHandler( FCKPlaceholders.OnDoubleClick, 'SPAN' ) ;
// Check if a Placholder name is already in use.
FCKPlaceholders.Exist = function( name )
{
var aSpans = FCK.EditorDocument.getElementsByTagName( 'SPAN' ) ;
for ( var i = 0 ; i < aSpans.length ; i++ )
{
if ( aSpans[i]._fckplaceholder == name )
return true ;
}
return false ;
}
if ( FCKBrowserInfo.IsIE )
{
FCKPlaceholders.Redraw = function()
{
if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG )
return ;
var aPlaholders = FCK.EditorDocument.body.innerText.match( /\[\[[^\[\]]+\]\]/g ) ;
if ( !aPlaholders )
return ;
var oRange = FCK.EditorDocument.body.createTextRange() ;
for ( var i = 0 ; i < aPlaholders.length ; i++ )
{
if ( oRange.findText( aPlaholders[i] ) )
{
var sName = aPlaholders[i].match( /\[\[\s*([^\]]*?)\s*\]\]/ )[1] ;
oRange.pasteHTML( '<span style="color: #000000; background-color: #ffff00" contenteditable="false" _fckplaceholder="' + sName + '">' + aPlaholders[i] + '</span>' ) ;
}
}
}
}
else
{
FCKPlaceholders.Redraw = function()
{
if ( FCK.EditMode != FCK_EDITMODE_WYSIWYG )
return ;
var oInteractor = FCK.EditorDocument.createTreeWalker( FCK.EditorDocument.body, NodeFilter.SHOW_TEXT, FCKPlaceholders._AcceptNode, true ) ;
var aNodes = new Array() ;
while ( ( oNode = oInteractor.nextNode() ) )
{
aNodes[ aNodes.length ] = oNode ;
}
for ( var n = 0 ; n < aNodes.length ; n++ )
{
var aPieces = aNodes[n].nodeValue.split( /(\[\[[^\[\]]+\]\])/g ) ;
for ( var i = 0 ; i < aPieces.length ; i++ )
{
if ( aPieces[i].length > 0 )
{
if ( aPieces[i].indexOf( '[[' ) == 0 )
{
var sName = aPieces[i].match( /\[\[\s*([^\]]*?)\s*\]\]/ )[1] ;
var oSpan = FCK.EditorDocument.createElement( 'span' ) ;
FCKPlaceholders.SetupSpan( oSpan, sName ) ;
aNodes[n].parentNode.insertBefore( oSpan, aNodes[n] ) ;
}
else
aNodes[n].parentNode.insertBefore( FCK.EditorDocument.createTextNode( aPieces[i] ) , aNodes[n] ) ;
}
}
aNodes[n].parentNode.removeChild( aNodes[n] ) ;
}
FCKPlaceholders._SetupClickListener() ;
}
FCKPlaceholders._AcceptNode = function( node )
{
if ( /\[\[[^\[\]]+\]\]/.test( node.nodeValue ) )
return NodeFilter.FILTER_ACCEPT ;
else
return NodeFilter.FILTER_SKIP ;
}
}
FCK.Events.AttachEvent( 'OnAfterSetHTML', FCKPlaceholders.Redraw ) ;
// We must process the SPAN tags to replace then with the real resulting value of the placeholder.
FCKXHtml.TagProcessors['span'] = function( node, htmlNode )
{
if ( htmlNode._fckplaceholder )
node = FCKXHtml.XML.createTextNode( '[[' + htmlNode._fckplaceholder + ']]' ) ;
else
FCKXHtml._AppendChildNodes( node, htmlNode, false ) ;
return node ;
}

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