/*
 * 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 ==
 *
 * Defines the FCK.ContextMenu object that is responsible for all
 * Context Menu operations in the editing area.
 */

FCK.ContextMenu = new Object() ;
FCK.ContextMenu.Listeners = new Array() ;

FCK.ContextMenu.RegisterListener = function( listener )
{
    if ( listener )
        this.Listeners.push( listener ) ;
}

function FCK_ContextMenu_Init()
{
    var oInnerContextMenu = FCK.ContextMenu._InnerContextMenu = new FCKContextMenu( FCKBrowserInfo.IsIE ? window : window.parent, FCKLang.Dir ) ;
    oInnerContextMenu.CtrlDisable    = FCKConfig.BrowserContextMenuOnCtrl ;
    oInnerContextMenu.OnBeforeOpen    = FCK_ContextMenu_OnBeforeOpen ;
    oInnerContextMenu.OnItemClick    = FCK_ContextMenu_OnItemClick ;

    // Get the registering function.
    var oMenu = FCK.ContextMenu ;

    // Register all configured context menu listeners.
    for ( var i = 0 ; i < FCKConfig.ContextMenu.length ; i++ )
        oMenu.RegisterListener( FCK_ContextMenu_GetListener( FCKConfig.ContextMenu[i] ) ) ;
}

function FCK_ContextMenu_GetListener( listenerName )
{
    switch ( listenerName )
    {
        case 'Generic' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                menu.AddItem( 'Cut'        , FCKLang.Cut    , 7, FCKCommands.GetCommand( 'Cut' ).GetState() == FCK_TRISTATE_DISABLED ) ;
                menu.AddItem( 'Copy'    , FCKLang.Copy    , 8, FCKCommands.GetCommand( 'Copy' ).GetState() == FCK_TRISTATE_DISABLED ) ;
                menu.AddItem( 'Paste'    , FCKLang.Paste    , 9, FCKCommands.GetCommand( 'Paste' ).GetState() == FCK_TRISTATE_DISABLED ) ;
            }} ;

        case 'Table' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                var bIsTable    = ( tagName == 'TABLE' ) ;
                var bIsCell        = ( !bIsTable && FCKSelection.HasAncestorNode( 'TABLE' ) ) ;

                if ( bIsCell )
                {
                    menu.AddSeparator() ;
                    var oItem = menu.AddItem( 'Cell'    , FCKLang.CellCM ) ;
                    oItem.AddItem( 'TableInsertCellBefore'    , FCKLang.InsertCellBefore, 69 ) ;
                    oItem.AddItem( 'TableInsertCellAfter'    , FCKLang.InsertCellAfter, 58 ) ;
                    oItem.AddItem( 'TableDeleteCells'    , FCKLang.DeleteCells, 59 ) ;
                    if ( FCKBrowserInfo.IsGecko )
                        oItem.AddItem( 'TableMergeCells'    , FCKLang.MergeCells, 60,
                            FCKCommands.GetCommand( 'TableMergeCells' ).GetState() == FCK_TRISTATE_DISABLED ) ;
                    else
                    {
                        oItem.AddItem( 'TableMergeRight'    , FCKLang.MergeRight, 60,
                            FCKCommands.GetCommand( 'TableMergeRight' ).GetState() == FCK_TRISTATE_DISABLED ) ;
                        oItem.AddItem( 'TableMergeDown'        , FCKLang.MergeDown, 60,
                            FCKCommands.GetCommand( 'TableMergeDown' ).GetState() == FCK_TRISTATE_DISABLED ) ;
                    }
                    oItem.AddItem( 'TableHorizontalSplitCell'    , FCKLang.HorizontalSplitCell, 61,
                        FCKCommands.GetCommand( 'TableHorizontalSplitCell' ).GetState() == FCK_TRISTATE_DISABLED ) ;
                    oItem.AddItem( 'TableVerticalSplitCell'    , FCKLang.VerticalSplitCell, 61,
                        FCKCommands.GetCommand( 'TableVerticalSplitCell' ).GetState() == FCK_TRISTATE_DISABLED ) ;
                    oItem.AddSeparator() ;
                    oItem.AddItem( 'TableCellProp'        , FCKLang.CellProperties, 57,
                        FCKCommands.GetCommand( 'TableCellProp' ).GetState() == FCK_TRISTATE_DISABLED ) ;

                    menu.AddSeparator() ;
                    oItem = menu.AddItem( 'Row'            , FCKLang.RowCM ) ;
                    oItem.AddItem( 'TableInsertRowBefore'        , FCKLang.InsertRowBefore, 70 ) ;
                    oItem.AddItem( 'TableInsertRowAfter'        , FCKLang.InsertRowAfter, 62 ) ;
                    oItem.AddItem( 'TableDeleteRows'    , FCKLang.DeleteRows, 63 ) ;

                    menu.AddSeparator() ;
                    oItem = menu.AddItem( 'Column'        , FCKLang.ColumnCM ) ;
                    oItem.AddItem( 'TableInsertColumnBefore', FCKLang.InsertColumnBefore, 71 ) ;
                    oItem.AddItem( 'TableInsertColumnAfter'    , FCKLang.InsertColumnAfter, 64 ) ;
                    oItem.AddItem( 'TableDeleteColumns'    , FCKLang.DeleteColumns, 65 ) ;
                }

                if ( bIsTable || bIsCell )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'TableDelete'            , FCKLang.TableDelete ) ;
                    menu.AddItem( 'TableProp'            , FCKLang.TableProperties, 39 ) ;
                }
            }} ;

        case 'Link' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                var bInsideLink = ( tagName == 'A' || FCKSelection.HasAncestorNode( 'A' ) ) ;

                if ( bInsideLink || FCK.GetNamedCommandState( 'Unlink' ) != FCK_TRISTATE_DISABLED )
                {
                    // Go up to the anchor to test its properties
                    var oLink = FCKSelection.MoveToAncestorNode( 'A' ) ;
                    var bIsAnchor = ( oLink && oLink.name.length > 0 && oLink.href.length == 0 ) ;
                    // If it isn't a link then don't add the Link context menu
                    if ( bIsAnchor )
                        return ;

                    menu.AddSeparator() ;
                    menu.AddItem( 'VisitLink', FCKLang.VisitLink ) ;
                    menu.AddSeparator() ;
                    if ( bInsideLink )
                        menu.AddItem( 'Link', FCKLang.EditLink        , 34 ) ;
                    menu.AddItem( 'Unlink'    , FCKLang.RemoveLink    , 35 ) ;
                }
            }} ;

        case 'Image' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                if ( tagName == 'IMG' && !tag.getAttribute( '_fckfakelement' ) )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'Image', FCKLang.ImageProperties, 37 ) ;
                }
            }} ;

        case 'Anchor' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                // Go up to the anchor to test its properties
                var oLink = FCKSelection.MoveToAncestorNode( 'A' ) ;
                var bIsAnchor = ( oLink && oLink.name.length > 0 ) ;

                if ( bIsAnchor || ( tagName == 'IMG' && tag.getAttribute( '_fckanchor' ) ) )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'Anchor', FCKLang.AnchorProp, 36 ) ;
                    menu.AddItem( 'AnchorDelete', FCKLang.AnchorDelete ) ;
                }
            }} ;

        case 'Flash' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                if ( tagName == 'IMG' && tag.getAttribute( '_fckflash' ) )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'Flash', FCKLang.FlashProperties, 38 ) ;
                }
            }} ;

        case 'Form' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                if ( FCKSelection.HasAncestorNode('FORM') )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'Form', FCKLang.FormProp, 48 ) ;
                }
            }} ;

        case 'Checkbox' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                if ( tagName == 'INPUT' && tag.type == 'checkbox' )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'Checkbox', FCKLang.CheckboxProp, 49 ) ;
                }
            }} ;

        case 'Radio' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                if ( tagName == 'INPUT' && tag.type == 'radio' )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'Radio', FCKLang.RadioButtonProp, 50 ) ;
                }
            }} ;

        case 'TextField' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                if ( tagName == 'INPUT' && ( tag.type == 'text' || tag.type == 'password' ) )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'TextField', FCKLang.TextFieldProp, 51 ) ;
                }
            }} ;

        case 'HiddenField' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                if ( tagName == 'IMG' && tag.getAttribute( '_fckinputhidden' ) )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'HiddenField', FCKLang.HiddenFieldProp, 56 ) ;
                }
            }} ;

        case 'ImageButton' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                if ( tagName == 'INPUT' && tag.type == 'image' )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'ImageButton', FCKLang.ImageButtonProp, 55 ) ;
                }
            }} ;

        case 'Button' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                if ( tagName == 'INPUT' && ( tag.type == 'button' || tag.type == 'submit' || tag.type == 'reset' ) )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'Button', FCKLang.ButtonProp, 54 ) ;
                }
            }} ;

        case 'Select' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                if ( tagName == 'SELECT' )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'Select', FCKLang.SelectionFieldProp, 53 ) ;
                }
            }} ;

        case 'Textarea' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                if ( tagName == 'TEXTAREA' )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'Textarea', FCKLang.TextareaProp, 52 ) ;
                }
            }} ;

        case 'BulletedList' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                if ( FCKSelection.HasAncestorNode('UL') )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'BulletedList', FCKLang.BulletedListProp, 27 ) ;
                }
            }} ;

        case 'NumberedList' :
            return {
            AddItems : function( menu, tag, tagName )
            {
                if ( FCKSelection.HasAncestorNode('OL') )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'NumberedList', FCKLang.NumberedListProp, 26 ) ;
                }
            }} ;

        case 'DivContainer':
            return {
            AddItems : function( menu, tag, tagName )
            {
                var currentBlocks = FCKDomTools.GetSelectedDivContainers() ;

                if ( currentBlocks.length > 0 )
                {
                    menu.AddSeparator() ;
                    menu.AddItem( 'EditDiv', FCKLang.EditDiv, 75 ) ;
                    menu.AddItem( 'DeleteDiv', FCKLang.DeleteDiv, 76 ) ;
                }
            }} ;

    }
    return null ;
}

function FCK_ContextMenu_OnBeforeOpen()
{
    // Update the UI.
    FCK.Events.FireEvent( 'OnSelectionChange' ) ;

    // Get the actual selected tag (if any).
    var oTag, sTagName ;

    // The extra () is to avoid a warning with strict error checking. This is ok.
    if ( (oTag = FCKSelection.GetSelectedElement()) )
        sTagName = oTag.tagName ;

    // Cleanup the current menu items.
    var oMenu = FCK.ContextMenu._InnerContextMenu ;
    oMenu.RemoveAllItems() ;

    // Loop through the listeners.
    var aListeners = FCK.ContextMenu.Listeners ;
    for ( var i = 0 ; i < aListeners.length ; i++ )
        aListeners[i].AddItems( oMenu, oTag, sTagName ) ;
}

function FCK_ContextMenu_OnItemClick( item )
{
    FCK.Focus() ;
    FCKCommands.GetCommand( item.Name ).Execute( item.CustomData ) ;
}
