source: extensions/FCKEditor/editor/_source/classes/fcktoolbarstylecombo.js @ 3295

/*
 * 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 ==
 *
 * FCKToolbarPanelButton Class: Handles the Fonts combo selector.
 */

var FCKToolbarStyleCombo = function( tooltip, style )
{
        if ( tooltip === false )
                return ;

        this.CommandName = 'Style' ;
        this.Label              = this.GetLabel() ;
        this.Tooltip    = tooltip ? tooltip : this.Label ;
        this.Style              = style ? style : FCK_TOOLBARITEM_ICONTEXT ;

        this.DefaultLabel = FCKConfig.DefaultStyleLabel || '' ;
}

// Inherit from FCKToolbarSpecialCombo.
FCKToolbarStyleCombo.prototype = new FCKToolbarSpecialCombo ;

FCKToolbarStyleCombo.prototype.GetLabel = function()
{
        return FCKLang.Style ;
}

FCKToolbarStyleCombo.prototype.GetStyles = function()
{
        var styles = {} ;
        var allStyles = FCK.ToolbarSet.CurrentInstance.Styles.GetStyles() ;

        for ( var styleName in allStyles )
        {
                var style = allStyles[ styleName ] ;
                if ( !style.IsCore )
                        styles[ styleName ] = style ;
        }
        return styles ;
}

FCKToolbarStyleCombo.prototype.CreateItems = function( targetSpecialCombo )
{
        var targetDoc = targetSpecialCombo._Panel.Document ;

        // Add the Editor Area CSS to the panel so the style classes are previewed correctly.
        FCKTools.AppendStyleSheet( targetDoc, FCKConfig.ToolbarComboPreviewCSS ) ;
        FCKTools.AppendStyleString( targetDoc, FCKConfig.EditorAreaStyles ) ;
        targetDoc.body.className += ' ForceBaseFont' ;

        // Add ID and Class to the body.
        FCKConfig.ApplyBodyAttributes( targetDoc.body ) ;

        // Get the styles list.
        var styles = this.GetStyles() ;

        for ( var styleName in styles )
        {
                var style = styles[ styleName ] ;

                // Object type styles have no preview.
                var caption = style.GetType() == FCK_STYLE_OBJECT ?
                        styleName :
                        FCKToolbarStyleCombo_BuildPreview( style, style.Label || styleName ) ;

                var item = targetSpecialCombo.AddItem( styleName, caption ) ;

                item.Style = style ;
        }

        // We must prepare the list before showing it.
        targetSpecialCombo.OnBeforeClick = this.StyleCombo_OnBeforeClick ;
}

FCKToolbarStyleCombo.prototype.RefreshActiveItems = function( targetSpecialCombo )
{
        var startElement = FCK.ToolbarSet.CurrentInstance.Selection.GetBoundaryParentElement( true ) ;

        if ( startElement )
        {
                var path = new FCKElementPath( startElement ) ;
                var elements = path.Elements ;

                for ( var e = 0 ; e < elements.length ; e++ )
                {
                        for ( var i in targetSpecialCombo.Items )
                        {
                                var item = targetSpecialCombo.Items[i] ;
                                var style = item.Style ;

                                if ( style.CheckElementRemovable( elements[ e ], true ) )
                                {
                                        targetSpecialCombo.SetLabel( style.Label || style.Name ) ;
                                        return ;
                                }
                        }
                }
        }

        targetSpecialCombo.SetLabel( this.DefaultLabel ) ;
}

FCKToolbarStyleCombo.prototype.StyleCombo_OnBeforeClick = function( targetSpecialCombo )
{
        // Two things are done here:
        //      - In a control selection, get the element name, so we'll display styles
        //        for that element only.
        //      - Select the styles that are active for the current selection.

        // Clear the current selection.
        targetSpecialCombo.DeselectAll() ;

        var startElement ;
        var path ;
        var tagName ;

        var selection = FCK.ToolbarSet.CurrentInstance.Selection ;

        if ( selection.GetType() == 'Control' )
        {
                startElement = selection.GetSelectedElement() ;
                tagName = startElement.nodeName.toLowerCase() ;
        }
        else
        {
                startElement = selection.GetBoundaryParentElement( true ) ;
                path = new FCKElementPath( startElement ) ;
        }

        for ( var i in targetSpecialCombo.Items )
        {
                var item = targetSpecialCombo.Items[i] ;
                var style = item.Style ;

                if ( ( tagName && style.Element == tagName ) || ( !tagName && style.GetType() != FCK_STYLE_OBJECT ) )
                {
                        item.style.display = '' ;

                        if ( ( path && style.CheckActive( path ) ) || ( !path && style.CheckElementRemovable( startElement, true ) ) )
                                targetSpecialCombo.SelectItem( style.Name ) ;
                }
                else
                        item.style.display = 'none' ;
        }
}

function FCKToolbarStyleCombo_BuildPreview( style, caption )
{
        var styleType = style.GetType() ;
        var html = [] ;

        if ( styleType == FCK_STYLE_BLOCK )
                html.push( '<div class="BaseFont">' ) ;

        var elementName = style.Element ;

        // Avoid <bdo> in the preview.
        if ( elementName == 'bdo' )
                elementName = 'span' ;

        html = [ '<', elementName ] ;

        // Assign all defined attributes.
        var attribs     = style._StyleDesc.Attributes ;
        if ( attribs )
        {
                for ( var att in attribs )
                {
                        html.push( ' ', att, '="', style.GetFinalAttributeValue( att ), '"' ) ;
                }
        }

        // Assign the style attribute.
        if ( style._GetStyleText().length > 0 )
                html.push( ' style="', style.GetFinalStyleValue(), '"' ) ;

        html.push( '>', caption, '</', elementName, '>' ) ;

        if ( styleType == FCK_STYLE_BLOCK )
                html.push( '</div>' ) ;

        return html.join( '' ) ;
}