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path: root/framework/source/fwe/classes/addonmenu.cxx
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/* -*- 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 <addonmenu.hxx>
#include <framework/addonsoptions.hxx>
#include <menuconfiguration.hxx>

#include <com/sun/star/uno/Reference.hxx>
#include <com/sun/star/uno/Sequence.hxx>
#include <com/sun/star/beans/PropertyValue.hpp>

#include <vcl/commandinfoprovider.hxx>
#include <vcl/menu.hxx>

using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::frame;
using namespace ::com::sun::star::beans;

namespace framework
{

bool AddonMenuManager::HasAddonMenuElements()
{
    return AddonsOptions().HasAddonsMenu();
}

// Create the Add-Ons menu
VclPtr<PopupMenu> AddonMenuManager::CreateAddonMenu( const Reference< XFrame >& rFrame )
{
    AddonsOptions     aOptions;
    VclPtr<PopupMenu> pAddonMenu;
    sal_uInt16        nUniqueMenuId   = ADDONMENU_ITEMID_START;

    const Sequence< Sequence< PropertyValue > >& rAddonMenuEntries = aOptions.GetAddonsMenu();
    if ( rAddonMenuEntries.hasElements() )
    {
        pAddonMenu = VclPtr<PopupMenu>::Create();
        OUString aModuleIdentifier = vcl::CommandInfoProvider::GetModuleIdentifier( rFrame );
        AddonMenuManager::BuildMenu( pAddonMenu, MENU_APPEND, nUniqueMenuId, rAddonMenuEntries, rFrame, aModuleIdentifier );

        // Don't return an empty Add-On menu
        if ( pAddonMenu->GetItemCount() == 0 )
        {
            pAddonMenu.disposeAndClear();
        }
    }

    return pAddonMenu;
}

// Returns the next insert position from nPos.
sal_uInt16 AddonMenuManager::GetNextPos( sal_uInt16 nPos )
{
    return ( nPos == MENU_APPEND ) ? MENU_APPEND : ( nPos+1 );
}

static sal_uInt16 FindMenuId( Menu const * pMenu, const OUString& aCommand )
{
    sal_uInt16 nPos = 0;
    OUString aCmd;
    for ( nPos = 0; nPos < pMenu->GetItemCount(); nPos++ )
    {
        sal_uInt16 nId = pMenu->GetItemId( nPos );
        aCmd = pMenu->GetItemCommand( nId );
        if ( aCmd == aCommand )
            return nId;
    }

    return USHRT_MAX;
}

// Merge the Add-Ons help menu items into the given menu bar at a defined pos
void AddonMenuManager::MergeAddonHelpMenu( const Reference< XFrame >& rFrame,
                                           MenuBar const * pMergeMenuBar )
{
    if ( !pMergeMenuBar )
        return;

    PopupMenu* pHelpMenu(nullptr);
    sal_uInt16 nId = FindMenuId(pMergeMenuBar, ".uno:HelpMenu");
    if ( nId != USHRT_MAX )
        pHelpMenu = pMergeMenuBar->GetPopupMenu( nId );

    if ( !pHelpMenu )
        return;

    // Add-Ons help menu items should be inserted after the "registration" menu item
    sal_uInt16 nItemCount       = pHelpMenu->GetItemCount();
    sal_uInt16 nInsSepAfterPos  = MENU_APPEND;
    sal_uInt16 nUniqueMenuId    = ADDONMENU_ITEMID_START;
    AddonsOptions aOptions;

    // try to detect the about menu item with the command URL
    nId = FindMenuId(pHelpMenu, ".uno:About");
    sal_uInt16 nInsPos = pHelpMenu->GetItemPos( nId );

    const Sequence< Sequence< PropertyValue > >& rAddonHelpMenuEntries = aOptions.GetAddonsHelpMenu();

    if ( nInsPos < nItemCount && pHelpMenu->GetItemType( nInsPos ) != MenuItemType::SEPARATOR )
        nInsSepAfterPos = nInsPos;

    OUString aModuleIdentifier = vcl::CommandInfoProvider::GetModuleIdentifier(rFrame);
    AddonMenuManager::BuildMenu( pHelpMenu, nInsPos, nUniqueMenuId, rAddonHelpMenuEntries, rFrame, aModuleIdentifier );

    if ( pHelpMenu->GetItemCount() > nItemCount )
    {
        if ( nInsSepAfterPos < MENU_APPEND )
        {
            nInsSepAfterPos += ( pHelpMenu->GetItemCount() - nItemCount );
            if ( pHelpMenu->GetItemType( nInsSepAfterPos ) != MenuItemType::SEPARATOR )
                pHelpMenu->InsertSeparator(OString(), nInsSepAfterPos);
        }
        pHelpMenu->InsertSeparator(OString(), nItemCount);
    }
}

// Merge the addon popup menus into the given menu bar at the provided pos.
void AddonMenuManager::MergeAddonPopupMenus( const Reference< XFrame >& rFrame,
                                             sal_uInt16               nMergeAtPos,
                                             MenuBar*             pMergeMenuBar )
{
    if ( !pMergeMenuBar )
        return;

    AddonsOptions   aAddonsOptions;
    sal_uInt16          nInsertPos = nMergeAtPos;

    OUString                              aTitle;
    OUString                              aURL;
    OUString                              aTarget;
    OUString                              aContext;
    Sequence< Sequence< PropertyValue > > aAddonSubMenu;
    sal_uInt16                            nUniqueMenuId = ADDONMENU_ITEMID_START;

    OUString aModuleIdentifier = vcl::CommandInfoProvider::GetModuleIdentifier(rFrame);

    const Sequence< Sequence< PropertyValue > >&    rAddonMenuEntries = aAddonsOptions.GetAddonsMenuBarPart();
    for ( const Sequence< PropertyValue >& rEntry : rAddonMenuEntries )
    {
        AddonMenuManager::GetMenuEntry( rEntry,
                                        aTitle,
                                        aURL,
                                        aTarget,
                                        aContext,
                                        aAddonSubMenu );
        if ( !aTitle.isEmpty() &&
             !aURL.isEmpty()   &&
             aAddonSubMenu.hasElements() &&
             AddonMenuManager::IsCorrectContext( aModuleIdentifier, aContext ))
        {
            sal_uInt16          nId             = nUniqueMenuId++;
            VclPtrInstance<PopupMenu> pAddonPopupMenu;

            AddonMenuManager::BuildMenu( pAddonPopupMenu, MENU_APPEND, nUniqueMenuId, aAddonSubMenu, rFrame, aModuleIdentifier );

            if ( pAddonPopupMenu->GetItemCount() > 0 )
            {
                pMergeMenuBar->InsertItem( nId, aTitle, MenuItemBits::NONE, OString(), nInsertPos++ );
                pMergeMenuBar->SetPopupMenu( nId, pAddonPopupMenu );

                // Store the command URL into the VCL menu bar for later identification
                pMergeMenuBar->SetItemCommand( nId, aURL );
            }
            else
                pAddonPopupMenu.disposeAndClear();
        }
    }
}

// Insert the menu and sub menu entries into pCurrentMenu with the aAddonMenuDefinition provided
void AddonMenuManager::BuildMenu( PopupMenu*                            pCurrentMenu,
                                  sal_uInt16                            nInsPos,
                                  sal_uInt16&                           nUniqueMenuId,
                                  const Sequence< Sequence< PropertyValue > >& aAddonMenuDefinition,
                                  const Reference< XFrame >&            rFrame,
                                  const OUString&               rModuleIdentifier )
{
    Sequence< Sequence< PropertyValue > >   aAddonSubMenu;
    bool                                    bInsertSeparator    = false;
    sal_uInt32                              i                   = 0;
    sal_uInt32                              nElements           = 0;
    sal_uInt32                              nCount              = aAddonMenuDefinition.getLength();

    OUString aTitle;
    OUString aURL;
    OUString aTarget;
    OUString aContext;

    for ( i = 0; i < nCount; ++i )
    {
        GetMenuEntry( aAddonMenuDefinition[i], aTitle, aURL, aTarget, aContext, aAddonSubMenu );

        if ( !IsCorrectContext( rModuleIdentifier, aContext ) || ( aTitle.isEmpty() && aURL.isEmpty() ))
            continue;

        if ( aURL == "private:separator" )
            bInsertSeparator = true;
        else
        {
            VclPtr<PopupMenu> pSubMenu;
            if ( aAddonSubMenu.hasElements() )
            {
                pSubMenu = VclPtr<PopupMenu>::Create();
                AddonMenuManager::BuildMenu( pSubMenu, MENU_APPEND, nUniqueMenuId, aAddonSubMenu, rFrame, rModuleIdentifier );

                // Don't create a menu item for an empty sub menu
                if ( pSubMenu->GetItemCount() == 0 )
                {
                    pSubMenu.disposeAndClear();
                    continue;
                }
            }

            if ( bInsertSeparator && nElements > 0 )
            {
                // Insert a separator only when we insert a new element afterwards and we
                // have already one before us
                nElements = 0;
                bInsertSeparator = false;
                pCurrentMenu->InsertSeparator(OString(), nInsPos);
                nInsPos = AddonMenuManager::GetNextPos( nInsPos );
            }

            sal_uInt16 nId = nUniqueMenuId++;
            pCurrentMenu->InsertItem(nId, aTitle, MenuItemBits::NONE, OString(), nInsPos);
            nInsPos = AddonMenuManager::GetNextPos( nInsPos );

            ++nElements;

            // Store values from configuration to the New and Wizard menu entries to enable
            // sfx2 based code to support high contrast mode correctly!
            void* nAttributePtr = MenuAttributes::CreateAttribute(aTarget, OUString());
            pCurrentMenu->SetUserValue(nId, nAttributePtr, MenuAttributes::ReleaseAttribute);
            pCurrentMenu->SetItemCommand( nId, aURL );

            if ( pSubMenu )
                pCurrentMenu->SetPopupMenu( nId, pSubMenu );
        }
    }
}

// Retrieve the menu entry property values from a sequence
void AddonMenuManager::GetMenuEntry( const Sequence< PropertyValue >& rAddonMenuEntry,
                                     OUString& rTitle,
                                     OUString& rURL,
                                     OUString& rTarget,
                                     OUString& rContext,
                                     Sequence< Sequence< PropertyValue > >& rAddonSubMenu )
{
    // Reset submenu parameter
    rAddonSubMenu   = Sequence< Sequence< PropertyValue > >();

    for ( const PropertyValue& rEntry : rAddonMenuEntry )
    {
        OUString aMenuEntryPropName = rEntry.Name;
        if ( aMenuEntryPropName == ADDONSMENUITEM_STRING_URL )
            rEntry.Value >>= rURL;
        else if ( aMenuEntryPropName == ADDONSMENUITEM_STRING_TITLE )
            rEntry.Value >>= rTitle;
        else if ( aMenuEntryPropName == ADDONSMENUITEM_STRING_TARGET )
            rEntry.Value >>= rTarget;
        else if ( aMenuEntryPropName == ADDONSMENUITEM_STRING_SUBMENU )
            rEntry.Value >>= rAddonSubMenu;
        else if ( aMenuEntryPropName == ADDONSMENUITEM_STRING_CONTEXT )
            rEntry.Value >>= rContext;
    }
}

// Check if the context string matches the provided xModel context
bool AddonMenuManager::IsCorrectContext( const OUString& rModuleIdentifier, const OUString& rContext )
{
    if ( rContext.isEmpty() )
        return true;

    if ( !rModuleIdentifier.isEmpty() )
    {
        sal_Int32 nIndex = rContext.indexOf( rModuleIdentifier );
        return ( nIndex >= 0 );
    }

    return false;
}

}

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */