1c1226709c
Windows crashes when an IFileDialog object is used on a non-main thread when cancelling a long search operation, when COM is initialized as single-threaded apartment for that thread. Trying to use a non-main thread with COM initialized to multi-threaded apartment hangs the dialog UI. The only solution that works is to run all File Dialogs on the main thread. This has a performance penalty on the application while a File Dialog is open or if multiple dialogs are searching and then cancelled, but it's better than crashing. Other applications like Firefox use only the main thread for File Dialogs, but have additional processes to avoid the performance penalty. Change-Id: Icf8a8179dbea19bd3d749a1c2fe8e67dbfc726c6 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/114482 Reviewed-by: Matt K <mattkse@gmail.com> Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de> Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com> Tested-by: Jenkins
224 lines
6.5 KiB
C++
224 lines
6.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include "requests.hxx"
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#include "VistaFilePickerImpl.hxx"
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#include "VistaFilePickerEventHandler.hxx"
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#include <com/sun/star/lang/XInitialization.hpp>
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#include <com/sun/star/lang/XServiceInfo.hpp>
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#include <com/sun/star/lang/XMultiServiceFactory.hpp>
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#include <com/sun/star/ui/dialogs/XFilePicker3.hpp>
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#include <com/sun/star/ui/dialogs/XFilePickerControlAccess.hpp>
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#include <com/sun/star/ui/dialogs/XFilePreview.hpp>
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#include <com/sun/star/ui/dialogs/XFolderPicker2.hpp>
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#include <cppuhelper/compbase.hxx>
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#include <cppuhelper/basemutex.hxx>
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#include <rtl/ustring.hxx>
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namespace fpicker{
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namespace win32{
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namespace vista{
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// types
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typedef ::cppu::WeakComponentImplHelper<
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css::ui::dialogs::XFilePicker3,
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css::ui::dialogs::XFilePickerControlAccess,
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css::ui::dialogs::XFilePreview,
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css::ui::dialogs::XFolderPicker2,
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css::lang::XInitialization,
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css::lang::XServiceInfo > TVistaFilePickerBase;
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/** Implements the XFilePicker & friends interface(s)
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for Windows Vista and upcoming versions.
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Note: This will be a UNO wrapper for the real file picker
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implementation only. The real implementation is done in class
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VistaFilePickerImpl.
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*/
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class VistaFilePicker : public ::cppu::BaseMutex
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, public TVistaFilePickerBase
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{
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public:
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// ctor/dtor
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explicit VistaFilePicker( bool bFolderPicker );
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virtual ~VistaFilePicker() override;
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// XFilePickerNotifier
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virtual void SAL_CALL addFilePickerListener( const css::uno::Reference< css::ui::dialogs::XFilePickerListener >& xListener ) override;
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virtual void SAL_CALL removeFilePickerListener( const css::uno::Reference< css::ui::dialogs::XFilePickerListener >& xListener ) override;
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// XExecutableDialog functions
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virtual void SAL_CALL setTitle( const OUString& sTitle ) override;
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virtual sal_Int16 SAL_CALL execute( ) override;
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// XFilePicker functions
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virtual void SAL_CALL setMultiSelectionMode( sal_Bool bMode ) override;
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virtual void SAL_CALL setDefaultName( const OUString& sName ) override;
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virtual void SAL_CALL setDisplayDirectory( const OUString& sDirectory ) override;
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virtual OUString SAL_CALL getDisplayDirectory( ) override;
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virtual css::uno::Sequence< OUString > SAL_CALL getFiles( ) override;
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// XFilePicker2 functions
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virtual css::uno::Sequence< OUString > SAL_CALL getSelectedFiles( ) override;
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// XFilterManager functions
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virtual void SAL_CALL appendFilter( const OUString& sTitle ,
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const OUString& sFilter ) override;
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virtual void SAL_CALL setCurrentFilter( const OUString& sTitle ) override;
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virtual OUString SAL_CALL getCurrentFilter( ) override;
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// XFilterGroupManager functions
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virtual void SAL_CALL appendFilterGroup( const OUString& sGroupTitle,
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const css::uno::Sequence< css::beans::StringPair >& lFilters ) override;
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// XFilePickerControlAccess functions
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virtual void SAL_CALL setValue( sal_Int16 nControlId ,
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sal_Int16 nControlAction,
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const css::uno::Any& aValue ) override;
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virtual css::uno::Any SAL_CALL getValue( sal_Int16 nControlId ,
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sal_Int16 nControlAction ) override;
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virtual void SAL_CALL enableControl( sal_Int16 nControlId,
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sal_Bool bEnable ) override;
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virtual void SAL_CALL setLabel( sal_Int16 nControlId,
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const OUString& sLabel ) override;
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virtual OUString SAL_CALL getLabel( sal_Int16 nControlId ) override;
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// XFilePreview
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virtual css::uno::Sequence< sal_Int16 > SAL_CALL getSupportedImageFormats( ) override;
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virtual sal_Int32 SAL_CALL getTargetColorDepth( ) override;
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virtual sal_Int32 SAL_CALL getAvailableWidth( ) override;
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virtual sal_Int32 SAL_CALL getAvailableHeight( ) override;
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virtual void SAL_CALL setImage( sal_Int16 nImageFormat,
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const css::uno::Any& aImage ) override;
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virtual sal_Bool SAL_CALL setShowState( sal_Bool bShowState ) override;
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virtual sal_Bool SAL_CALL getShowState( ) override;
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// XInitialization
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virtual void SAL_CALL initialize( const css::uno::Sequence< css::uno::Any >& lArguments ) override;
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// XCancellable
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virtual void SAL_CALL cancel( ) override;
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// XEventListener
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/// @throws css::uno::RuntimeException
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virtual void disposing( const css::lang::EventObject& aEvent );
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// XServiceInfo
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virtual OUString SAL_CALL getImplementationName( ) override;
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virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) override;
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virtual css::uno::Sequence< OUString > SAL_CALL getSupportedServiceNames( ) override;
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// XFolderPicker functions
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virtual OUString SAL_CALL getDirectory( ) override;
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virtual void SAL_CALL setDescription( const OUString& aDescription ) override;
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private:
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// prevent copy and assignment
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VistaFilePicker( const VistaFilePicker& );
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VistaFilePicker& operator=( const VistaFilePicker& );
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using WeakComponentImplHelperBase::disposing;
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void ensureInit();
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private:
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css::uno::Sequence< OUString > m_lLastFiles;
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VistaFilePickerImpl m_rDialog;
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bool m_bInitialized;
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const bool m_bFolderPicker;
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};
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} // namespace vista
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} // namespace win32
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} // namespace fpicker
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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