/* -*- 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 <sal/config.h>
 
#include <stdtypes.h>
 
#include <com/sun/star/beans/PropertyValue.hpp>
#include <com/sun/star/lang/XServiceInfo.hpp>
#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/frame/XDispatch.hpp>
#include <com/sun/star/frame/XDispatchProvider.hpp>
#include <com/sun/star/frame/XStatusListener.hpp>
 
#include <cppuhelper/supportsservice.hxx>
#include <vcl/builder.hxx>
#include <vcl/menu.hxx>
#include <vcl/svapp.hxx>
#include <vcl/settings.hxx>
#include <vcl/i18nhelp.hxx>
#include <rtl/ref.hxx>
#include <rtl/ustrbuf.hxx>
#include <svl/solar.hrc>
#include <vcl/image.hxx>
#include <svtools/menuoptions.hxx>
#include <svtools/popupmenucontrollerbase.hxx>
#include <osl/mutex.hxx>
#include <memory>
 
#include <svx/svxids.hrc>
 
#include <bitmaps.hlst>
 
// See svx/source/form/fmshimp.cxx for other use of this .ui
 
static const char* aCommands[] =
{
    ".uno:ConvertToEdit",
    ".uno:ConvertToButton",
    ".uno:ConvertToFixed",
    ".uno:ConvertToList",
    ".uno:ConvertToCheckBox",
    ".uno:ConvertToRadio",
    ".uno:ConvertToGroup",
    ".uno:ConvertToCombo",
    ".uno:ConvertToImageBtn",
    ".uno:ConvertToFileControl",
    ".uno:ConvertToDate",
    ".uno:ConvertToTime",
    ".uno:ConvertToNumeric",
    ".uno:ConvertToCurrency",
    ".uno:ConvertToPattern",
    ".uno:ConvertToImageControl",
    ".uno:ConvertToFormatted",
    ".uno:ConvertToScrollBar",
    ".uno:ConvertToSpinButton",
    ".uno:ConvertToNavigationBar"
};
 
static const OUStringLiteral aImgIds[] =
{
    RID_SVXBMP_EDITBOX,
    RID_SVXBMP_BUTTON,
    RID_SVXBMP_FIXEDTEXT,
    RID_SVXBMP_LISTBOX,
    RID_SVXBMP_CHECKBOX,
    RID_SVXBMP_RADIOBUTTON,
    RID_SVXBMP_GROUPBOX,
    RID_SVXBMP_COMBOBOX,
    RID_SVXBMP_IMAGEBUTTON,
    RID_SVXBMP_FILECONTROL,
    RID_SVXBMP_DATEFIELD,
    RID_SVXBMP_TIMEFIELD,
    RID_SVXBMP_NUMERICFIELD,
    RID_SVXBMP_CURRENCYFIELD,
    RID_SVXBMP_PATTERNFIELD,
    RID_SVXBMP_IMAGECONTROL,
    RID_SVXBMP_FORMATTEDFIELD,
    RID_SVXBMP_SCROLLBAR,
    RID_SVXBMP_SPINBUTTON,
    RID_SVXBMP_NAVIGATIONBAR
};
 
using namespace css;
using namespace css::uno;
using namespace css::lang;
using namespace css::frame;
using namespace css::beans;
 
namespace {
 
class ControlMenuController :  public svt::PopupMenuControllerBase
{
    using svt::PopupMenuControllerBase::disposing;
 
public:
    explicit ControlMenuController( const uno::Reference< uno::XComponentContext >& xContext );
 
    // XServiceInfo
    virtual OUString SAL_CALL getImplementationName() override
    {
        return OUString("com.sun.star.comp.framework.ControlMenuController");
    }
 
    virtual sal_Bool SAL_CALL supportsService(OUString const & ServiceName) override
    {
        return cppu::supportsService(this, ServiceName);
    }
 
    virtual css::uno::Sequence<OUString> SAL_CALL getSupportedServiceNames() override
    {
        return {"com.sun.star.frame.PopupMenuController"};
    }
 
    // XPopupMenuController
    virtual void SAL_CALL updatePopupMenu() override;
 
    // XInitialization
    virtual void SAL_CALL initialize( const uno::Sequence< uno::Any >& aArguments ) override;
 
    // XStatusListener
    virtual void SAL_CALL statusChanged( const frame::FeatureStateEvent& Event ) override;
 
    // XMenuListener
    virtual void SAL_CALL itemActivated( const awt::MenuEvent& rEvent ) override;
 
    // XEventListener
    virtual void SAL_CALL disposing( const lang::EventObject& Source ) override;
 
private:
    virtual void impl_setPopupMenu() override;
 
    class UrlToDispatchMap : public std::unordered_map< OUString,
                                                        uno::Reference< frame::XDispatch > >
    {
        public:
            void free()
            {
                UrlToDispatchMap().swap( *this );// get rid of reserved capacity
            }
    };
 
    void updateImagesPopupMenu( PopupMenu* pPopupMenu );
    void fillPopupMenu( uno::Reference< awt::XPopupMenu > const & rPopupMenu );
 
    bool                m_bShowMenuImages : 1;
    std::unique_ptr<VclBuilder> m_xBuilder;
    VclPtr<PopupMenu>   m_xResPopupMenu;
    UrlToDispatchMap    m_aURLToDispatchMap;
};
 
ControlMenuController::ControlMenuController(const css::uno::Reference< css::uno::XComponentContext >& xContext)
    : svt::PopupMenuControllerBase(xContext)
{
    const StyleSettings& rSettings = Application::GetSettings().GetStyleSettings();
    m_bShowMenuImages   = rSettings.GetUseImagesInMenus();
 
}
 
// private function
void ControlMenuController::updateImagesPopupMenu( PopupMenu* pPopupMenu )
{
    for (sal_uInt32 i=0; i < SAL_N_ELEMENTS(aCommands); ++i)
    {
        //ident is .uno:Command without .uno:
        OString sIdent = OString(aCommands[i]).copy(5);
        sal_uInt16 nId = pPopupMenu->GetItemId(sIdent);
        if (m_bShowMenuImages)
            pPopupMenu->SetItemImage(nId, Image(BitmapEx(aImgIds[i])));
        else
            pPopupMenu->SetItemImage(nId, Image());
    }
}
 
// private function
void ControlMenuController::fillPopupMenu( Reference< css::awt::XPopupMenu > const & rPopupMenu )
{
    VCLXPopupMenu*                                     pPopupMenu        = static_cast<VCLXPopupMenu *>(VCLXMenu::GetImplementation( rPopupMenu ));
    PopupMenu*                                         pVCLPopupMenu     = nullptr;
 
    SolarMutexGuard aSolarMutexGuard;
 
    resetPopupMenu( rPopupMenu );
    if ( pPopupMenu )
        pVCLPopupMenu = static_cast<PopupMenu *>(pPopupMenu->GetMenu());
 
    if (pVCLPopupMenu && m_xResPopupMenu)
        *pVCLPopupMenu = *m_xResPopupMenu;
}
 
// XEventListener
void SAL_CALL ControlMenuController::disposing( const EventObject& )
{
    Reference< css::awt::XMenuListener > xHolder(static_cast<OWeakObject *>(this), UNO_QUERY );
 
    osl::ResettableMutexGuard aLock( m_aMutex );
    m_xFrame.clear();
    m_xDispatch.clear();
 
    if ( m_xPopupMenu.is() )
        m_xPopupMenu->removeMenuListener( Reference< css::awt::XMenuListener >(static_cast<OWeakObject *>(this), UNO_QUERY ));
    m_xPopupMenu.clear();
    m_xResPopupMenu.clear();
    m_xBuilder.reset();
}
 
// XStatusListener
void SAL_CALL ControlMenuController::statusChanged( const FeatureStateEvent& Event )
{
    osl::ResettableMutexGuard aLock( m_aMutex );
 
    OString sIdent;
    for (sal_uInt32 i=0; i < SAL_N_ELEMENTS(aCommands); ++i)
    {
        if ( Event.FeatureURL.Complete.equalsAscii( aCommands[i] ))
        {
            //ident is .uno:Command without .uno:
            sIdent = OString(aCommands[i]).copy(5);
            break;
        }
    }
 
    sal_uInt16 nMenuId = 0;
 
    VCLXPopupMenu*  pPopupMenu = nullptr;
 
    if (!sIdent.isEmpty() && m_xResPopupMenu)
    {
        pPopupMenu = static_cast<VCLXPopupMenu *>(VCLXMenu::GetImplementation( m_xPopupMenu ));
        nMenuId = m_xResPopupMenu->GetItemId(sIdent);
    }
 
    if (pPopupMenu)
    {
        SolarMutexGuard aSolarMutexGuard;
 
        PopupMenu* pVCLPopupMenu = static_cast<PopupMenu *>(pPopupMenu->GetMenu());
 
        if ( !Event.IsEnabled && pVCLPopupMenu->GetItemPos( nMenuId ) != MENU_ITEM_NOTFOUND )
            pVCLPopupMenu->RemoveItem( pVCLPopupMenu->GetItemPos( nMenuId ));
        else if ( Event.IsEnabled && pVCLPopupMenu->GetItemPos( nMenuId ) == MENU_ITEM_NOTFOUND )
        {
            sal_Int16 nSourcePos = m_xResPopupMenu->GetItemPos(nMenuId);
            sal_Int16 nPrevInSource = nSourcePos;
            sal_uInt16 nPrevInConversion = MENU_ITEM_NOTFOUND;
            while (nPrevInSource>0)
            {
                sal_Int16 nPrevId = m_xResPopupMenu->GetItemId(--nPrevInSource);
 
                // do we have the source's predecessor in our conversion menu, too ?
                nPrevInConversion = pVCLPopupMenu->GetItemPos( nPrevId );
                if ( nPrevInConversion != MENU_ITEM_NOTFOUND )
                    break;
            }
 
          if ( MENU_ITEM_NOTFOUND == nPrevInConversion )
                // none of the items which precede the nSID-slot in the source menu are present in our conversion menu
                nPrevInConversion = sal::static_int_cast< sal_uInt16 >(-1); // put the item at the first position
 
            pVCLPopupMenu->InsertItem(nMenuId, m_xResPopupMenu->GetItemText(nMenuId), m_xResPopupMenu->GetItemBits(nMenuId), OString(), ++nPrevInConversion);
            pVCLPopupMenu->SetItemImage(nMenuId, m_xResPopupMenu->GetItemImage(nMenuId));
            pVCLPopupMenu->SetHelpId(nMenuId, m_xResPopupMenu->GetHelpId(nMenuId));
        }
    }
}
 
// XMenuListener
void SAL_CALL ControlMenuController::itemActivated( const css::awt::MenuEvent& )
{
    osl::ResettableMutexGuard aLock( m_aMutex );
 
    if ( m_xPopupMenu.is() )
    {
        SolarMutexGuard aSolarMutexGuard;
 
        // Check if some modes have changed so we have to update our menu images
        const StyleSettings& rSettings = Application::GetSettings().GetStyleSettings();
        bool bShowMenuImages    = rSettings.GetUseImagesInMenus();
        bool bUpdateImages      = (bShowMenuImages != m_bShowMenuImages);
 
        if ( bUpdateImages )
        {
            m_bShowMenuImages   = bShowMenuImages;
 
            VCLXPopupMenu* pPopupMenu = static_cast<VCLXPopupMenu *>(VCLXPopupMenu::GetImplementation( m_xPopupMenu ));
            if ( pPopupMenu )
            {
                PopupMenu* pVCLPopupMenu = static_cast<PopupMenu *>(pPopupMenu->GetMenu());
                if ( pVCLPopupMenu && bUpdateImages )
                    updateImagesPopupMenu( pVCLPopupMenu );
            }
        }
    }
}
 
// XPopupMenuController
void ControlMenuController::impl_setPopupMenu()
{
    if (!m_xResPopupMenu)
    {
        m_xBuilder.reset(new VclBuilder(nullptr, VclBuilderContainer::getUIRootDir(), "svx/ui/convertmenu.ui", ""));
        m_xResPopupMenu = m_xBuilder->get_menu("menu");
        updateImagesPopupMenu(m_xResPopupMenu);
    }
}
 
void SAL_CALL ControlMenuController::updatePopupMenu()
{
    osl::ResettableMutexGuard aLock( m_aMutex );
 
    throwIfDisposed();
 
    if ( m_xFrame.is() && m_xPopupMenu.is() )
    {
        css::util::URL aTargetURL;
        Reference< XDispatchProvider > xDispatchProvider( m_xFrame, UNO_QUERY );
        fillPopupMenu( m_xPopupMenu );
        m_aURLToDispatchMap.free();
 
        for (const char* aCommand : aCommands)
        {
            aTargetURL.Complete = OUString::createFromAscii( aCommand );
            m_xURLTransformer->parseStrict( aTargetURL );
 
            Reference< XDispatch > xDispatch = xDispatchProvider->queryDispatch( aTargetURL, OUString(), 0 );
            if ( xDispatch.is() )
            {
                xDispatch->addStatusListener( static_cast< XStatusListener* >(this), aTargetURL );
                xDispatch->removeStatusListener( static_cast< XStatusListener* >(this), aTargetURL );
                m_aURLToDispatchMap.emplace( aTargetURL.Complete, xDispatch );
            }
        }
    }
}
 
// XInitialization
void SAL_CALL ControlMenuController::initialize( const Sequence< Any >& aArguments )
{
    osl::ResettableMutexGuard aLock( m_aMutex );
    svt::PopupMenuControllerBase::initialize(aArguments);
    m_aBaseURL.clear();
}
 
}
 
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
com_sun_star_comp_framework_ControlMenuController_get_implementation(
    css::uno::XComponentContext *context,
    css::uno::Sequence<css::uno::Any> const &)
{
    return cppu::acquire(new ControlMenuController(context));
}
 
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */