/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#include <uielement/menubarwrapper.hxx>

#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/container/XNameAccess.hpp>
#include <com/sun/star/ui/UIElementType.hpp>
#include <com/sun/star/frame/ModuleManager.hpp>
#include <com/sun/star/util/URLTransformer.hpp>

#include <comphelper/sequence.hxx>
#include <cppuhelper/typeprovider.hxx>
#include <cppuhelper/queryinterface.hxx>
#include <toolkit/awt/vclxmenu.hxx>
#include <vcl/svapp.hxx>

using namespace com::sun::star;
using namespace com::sun::star::uno;
using namespace com::sun::star::beans;
using namespace com::sun::star::frame;
using namespace com::sun::star::lang;
using namespace com::sun::star::container;
using namespace com::sun::star::awt;
using namespace com::sun::star::util;
using namespace ::com::sun::star::ui;

namespace framework
{

void SAL_CALL MenuBarWrapper::acquire() noexcept                                                                          \
{                                                                                                                                                       \
    /* Don't use mutex in methods of XInterface! */                                                                                                     \
    UIConfigElementWrapperBase::acquire();                                                                                                                               \
}                                                                                                                                                       \
                                                                                                                                                        \
void SAL_CALL MenuBarWrapper::release() noexcept                                                                          \
{                                                                                                                                                       \
    /* Don't use mutex in methods of XInterface! */                                                                                                     \
    UIConfigElementWrapperBase::release();                                                                                                                               \
}

css::uno::Any SAL_CALL MenuBarWrapper::queryInterface( const css::uno::Type& aType )
{
    /* Attention: Don't use mutex or guard in this method!!! Is a method of XInterface. */
    /* Ask for my own supported interfaces ...                                          */
    css::uno::Any aReturn  = ::cppu::queryInterface( aType,
                        static_cast< css::lang::XTypeProvider* >( this ),
                        static_cast< css::ui::XUIElement* >( this ),
                        static_cast< css::ui::XUIElementSettings* >( this ),
                        static_cast< css::beans::XMultiPropertySet* >( this ),
                        static_cast< css::beans::XFastPropertySet* >( this ),
                        static_cast< css::beans::XPropertySet* >( this ),
                        static_cast< css::lang::XInitialization* >( this ),
                        static_cast< css::lang::XComponent* >( this ),
                        static_cast< css::util::XUpdatable* >( this ),
                        static_cast< css::ui::XUIConfigurationListener* >( this ),
                        static_cast< css::container::XNameAccess* >( static_cast< css::container::XElementAccess* >( this ) )
                                        );
    /* If searched interface not supported by this class ... */
    if ( !aReturn.hasValue() )
    {
        /* ... ask baseclass for interfaces! */
        aReturn = UIConfigElementWrapperBase::queryInterface( aType );
    }
    /* Return result of this search. */
    return aReturn;
}

css::uno::Sequence< sal_Int8 > SAL_CALL MenuBarWrapper::getImplementationId()
{
    return css::uno::Sequence<sal_Int8>();
}

css::uno::Sequence< css::uno::Type > SAL_CALL MenuBarWrapper::getTypes()
{
    /* Attention: "TYPES" will expand to "(...)"!   */
    static cppu::OTypeCollection ourTypeCollection {
                        cppu::UnoType<css::lang::XTypeProvider>::get()           ,
                        cppu::UnoType<css::ui::XUIElement>::get()                ,
                        cppu::UnoType<css::ui::XUIElementSettings>::get()        ,
                        cppu::UnoType<css::beans::XMultiPropertySet>::get()      ,
                        cppu::UnoType<css::beans::XFastPropertySet>::get()       ,
                        cppu::UnoType<css::beans::XPropertySet>::get()           ,
                        cppu::UnoType<css::lang::XInitialization>::get()         ,
                        cppu::UnoType<css::lang::XComponent>::get()              ,
                        cppu::UnoType<css::util::XUpdatable>::get()              ,
                        cppu::UnoType<css::ui::XUIConfigurationListener>::get()  ,
                    cppu::UnoType<css::container::XNameAccess>::get() };
    return ourTypeCollection.getTypes();
}

MenuBarWrapper::MenuBarWrapper(
    const css::uno::Reference< css::uno::XComponentContext >& rxContext
    )
:    UIConfigElementWrapperBase( UIElementType::MENUBAR ),
     m_bRefreshPopupControllerCache( true ),
     m_xContext( rxContext )
{
}

MenuBarWrapper::~MenuBarWrapper()
{
}

void SAL_CALL MenuBarWrapper::dispose()
{
    Reference< XComponent > xThis(this);

    css::lang::EventObject aEvent( xThis );
    m_aListenerContainer.disposeAndClear( aEvent );

    SolarMutexGuard g;

    m_xMenuBarManager->dispose();
    m_xMenuBarManager.clear();
    m_xConfigSource.clear();
    m_xConfigData.clear();

    m_xMenuBar.clear();
    m_bDisposed = true;
}

// XInitialization
void SAL_CALL MenuBarWrapper::initialize( const Sequence< Any >& aArguments )
{
    SolarMutexGuard g;

    if ( m_bDisposed )
        throw DisposedException();

    if ( m_bInitialized )
        return;

    OUString aModuleIdentifier;
    UIConfigElementWrapperBase::initialize( aArguments );

    Reference< XFrame > xFrame( m_xWeakFrame );
    if ( !(xFrame.is() && m_xConfigSource.is()) )
        return;

    // Create VCL menubar which will be filled with settings data
    VclPtr<MenuBar> pVCLMenuBar;
    {
        SolarMutexGuard aSolarMutexGuard;
        pVCLMenuBar = VclPtr<MenuBar>::Create();
    }

    Reference< XModuleManager2 > xModuleManager = ModuleManager::create( m_xContext );

    try
    {
        aModuleIdentifier = xModuleManager->identify( xFrame );
    }
    catch( const Exception& )
    {
    }

    Reference< XURLTransformer > xTrans;
    try
    {
        xTrans.set( URLTransformer::create(m_xContext) );
        m_xConfigData = m_xConfigSource->getSettings( m_aResourceURL, false );
        if ( m_xConfigData.is() )
        {
            // Fill menubar with container contents
            sal_uInt16 nId = 1;
            MenuBarManager::FillMenuWithConfiguration( nId, pVCLMenuBar, aModuleIdentifier, m_xConfigData, xTrans );
        }
    }
    catch ( const NoSuchElementException& )
    {
    }

    bool bMenuOnly( false );
    for ( const Any& rArg : aArguments )
    {
        PropertyValue aPropValue;
        if ( rArg >>= aPropValue )
        {
            if ( aPropValue.Name == "MenuOnly" )
                aPropValue.Value >>= bMenuOnly;
        }
    }

    if ( !bMenuOnly )
    {
        // Initialize menubar manager with our vcl menu bar. There are some situations where we only want to get the menu without any
        // interaction which is done by the menu bar manager. This must be requested by a special property called "MenuOnly". Be careful
        // a menu bar created with this property is not fully supported. It must be attached to a real menu bar manager to have full
        // support. This feature is currently used for "Inplace editing"!
        Reference< XDispatchProvider > xDispatchProvider;

        m_xMenuBarManager = new MenuBarManager( m_xContext,
                                                              xFrame,
                                                              xTrans,
                                                              xDispatchProvider,
                                                              aModuleIdentifier,
                                                              pVCLMenuBar,
                                                              false );
    }

    // Initialize toolkit menu bar implementation to have awt::XMenuBar for data exchange.
    // Don't use this toolkit menu bar or one of its functions. It is only used as a data container!
    m_xMenuBar = new VCLXMenuBar( pVCLMenuBar );
}

// XUIElementSettings
void SAL_CALL MenuBarWrapper::updateSettings()
{
    SolarMutexGuard g;

    if ( m_bDisposed )
        throw DisposedException();

    if ( !m_xMenuBarManager.is() )
        return;

    if ( m_xConfigSource.is() && m_bPersistent )
    {
        try
        {
            MenuBarManager* pMenuBarManager = static_cast< MenuBarManager *>( m_xMenuBarManager.get() );

            m_xConfigData = m_xConfigSource->getSettings( m_aResourceURL, false );
            if ( m_xConfigData.is() )
                pMenuBarManager->SetItemContainer( m_xConfigData );
        }
        catch ( const NoSuchElementException& )
        {
        }
    }
    else if ( !m_bPersistent )
    {
        // Transient menubar: do nothing
    }
}
void MenuBarWrapper::impl_fillNewData()
{
    // Transient menubar => Fill menubar with new data
    MenuBarManager* pMenuBarManager = static_cast< MenuBarManager *>( m_xMenuBarManager.get() );

    if ( pMenuBarManager )
        pMenuBarManager->SetItemContainer( m_xConfigData );
}

void MenuBarWrapper::fillPopupControllerCache()
{
    if ( m_bRefreshPopupControllerCache )
    {
        MenuBarManager* pMenuBarManager = static_cast< MenuBarManager *>( m_xMenuBarManager.get() );
        if ( pMenuBarManager )
            pMenuBarManager->GetPopupController( m_aPopupControllerCache );
        if ( !m_aPopupControllerCache.empty() )
            m_bRefreshPopupControllerCache = false;
    }
}

// XElementAccess
Type SAL_CALL MenuBarWrapper::getElementType()
{
    return cppu::UnoType<XDispatchProvider>::get();
}

sal_Bool SAL_CALL MenuBarWrapper::hasElements()
{
    SolarMutexGuard g;

    if ( m_bDisposed )
        throw DisposedException();

    fillPopupControllerCache();
    return ( !m_aPopupControllerCache.empty() );
}

// XNameAccess
Any SAL_CALL MenuBarWrapper::getByName(
    const OUString& aName )
{
    SolarMutexGuard g;

    if ( m_bDisposed )
        throw DisposedException();

    fillPopupControllerCache();

    PopupControllerCache::const_iterator pIter = m_aPopupControllerCache.find( aName );
    if ( pIter == m_aPopupControllerCache.end() )
        throw container::NoSuchElementException();

    uno::Reference< frame::XDispatchProvider > xDispatchProvider = pIter->second.m_xDispatchProvider;
    return uno::makeAny( xDispatchProvider );
}

Sequence< OUString > SAL_CALL MenuBarWrapper::getElementNames()
{
    SolarMutexGuard g;

    if ( m_bDisposed )
        throw DisposedException();

    fillPopupControllerCache();

    return comphelper::mapKeysToSequence( m_aPopupControllerCache );
}

sal_Bool SAL_CALL MenuBarWrapper::hasByName(
    const OUString& aName )
{
    SolarMutexGuard g;

    if ( m_bDisposed )
        throw DisposedException();

    fillPopupControllerCache();

    PopupControllerCache::const_iterator pIter = m_aPopupControllerCache.find( aName );
    if ( pIter != m_aPopupControllerCache.end() )
        return true;
    else
        return false;
}

// XUIElement
Reference< XInterface > SAL_CALL MenuBarWrapper::getRealInterface()
{
    if ( m_bDisposed )
        throw DisposedException();

    return Reference< XInterface >( m_xMenuBarManager, UNO_QUERY );
}

} // namespace framework

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