vcl/inc/qt5/QtInstance.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #pragma once
  21
  22 #include <vclpluginapi.h>
  23 #include <unx/geninst.h>
  24 #include <salusereventlist.hxx>
  25 #include <vcl/timer.hxx>
  26
  27 #include <osl/conditn.hxx>
  28
  29 #include <QtCore/QObject>
  30
  31 #include <cstdlib>
  32 #include <functional>
  33 #include <memory>
  34 #include <vector>
  35
  36 #include "QtFilePicker.hxx"
  37 #include <salinst.hxx>
  38
  39 class QtFrame;
  40 class QtTimer;
  41
  42 class QApplication;
  43 class SalYieldMutex;
  44 class SalFrame;
  45
  46 struct StdFreeCStr
  47 {
  48     void operator()(char* arg) const noexcept { std::free(arg); }
  49 };
  50 using FreeableCStr = std::unique_ptr<char[], StdFreeCStr>;
  51
  52 class VCLPLUG_QT_PUBLIC QtInstance : public QObject,
  53                                      public SalGenericInstance,
  54                                      public SalUserEventList
  55 {
  56     Q_OBJECT
  57
  58     osl::Condition m_aWaitingYieldCond;
  59     const bool m_bUseCairo;
  60     QtTimer* m_pTimer;
  61     bool m_bSleeping;
  62     std::unordered_map<OUString, css::uno::Reference<css::uno::XInterface>> m_aClipboards;
  63
  64     std::unique_ptr<QApplication> m_pQApplication;
  65     std::vector<FreeableCStr> m_pFakeArgvFreeable;
  66     std::unique_ptr<char* []> m_pFakeArgv;
  67     std::unique_ptr<int> m_pFakeArgc;
  68
  69     Timer m_aUpdateStyleTimer;
  70     bool m_bUpdateFonts;
  71
  72     QtFrame* m_pActivePopup;
  73
  74     DECL_DLLPRIVATE_LINK(updateStyleHdl, Timer*, void);
  75     void AfterAppInit() override;
  76
  77     static QWidget* GetNativeParentFromWeldParent(weld::Widget* pParent);
  78
  79 private Q_SLOTS:
  80     bool ImplYield(bool bWait, bool bHandleAllCurrentEvents);
  81     static void deleteObjectLater(QObject* pObject);
  82     static void localeChanged();
  83
  84     void orientationChanged(Qt::ScreenOrientation);
  85     void primaryScreenChanged(QScreen*);
  86     void screenAdded(QScreen*);
  87     void screenRemoved(QScreen*);
  88     void virtualGeometryChanged(const QRect&);
  89
  90 Q_SIGNALS:
  91     bool ImplYieldSignal(bool bWait, bool bHandleAllCurrentEvents);
  92     void deleteObjectLaterSignal(QObject* pObject);
  93
  94 protected:
  95     virtual rtl::Reference<QtFilePicker>
  96     createPicker(css::uno::Reference<css::uno::XComponentContext> const& context,
  97                  QFileDialog::FileMode);
  98     bool useCairo() const { return m_bUseCairo; }
  99     // encodes cairo usage and Qt platform name into the ToolkitName
 100     OUString constructToolkitID(std::u16string_view sTKname);
 101     void connectQScreenSignals(const QScreen*);
 102     void notifyDisplayChanged();
 103
 104 public:
 105     explicit QtInstance(std::unique_ptr<QApplication>& pQApp);
 106     virtual ~QtInstance() override;
 107
 108     // handle common SalInstance setup
 109     static void AllocFakeCmdlineArgs(std::unique_ptr<char* []>& rFakeArgv,
 110                                      std::unique_ptr<int>& rFakeArgc,
 111                                      std::vector<FreeableCStr>& rFakeArgvFreeable);
 112     void MoveFakeCmdlineArgs(std::unique_ptr<char* []>& rFakeArgv, std::unique_ptr<int>& rFakeArgc,
 113                              std::vector<FreeableCStr>& rFakeArgvFreeable);
 114     static std::unique_ptr<QApplication> CreateQApplication(int& nArgc, char** pArgv);
 115
 116     void RunInMainThread(std::function<void()> func);
 117
 118     virtual SalFrame* CreateFrame(SalFrame* pParent, SalFrameStyleFlags nStyle) override;
 119     virtual SalFrame* CreateChildFrame(SystemParentData* pParent,
 120                                        SalFrameStyleFlags nStyle) override;
 121     virtual void DestroyFrame(SalFrame* pFrame) override;
 122
 123     virtual SalObject* CreateObject(SalFrame* pParent, SystemWindowData* pWindowData,
 124                                     bool bShow) override;
 125     virtual void DestroyObject(SalObject* pObject) override;
 126
 127     virtual std::unique_ptr<SalVirtualDevice>
 128     CreateVirtualDevice(SalGraphics& rGraphics, tools::Long& nDX, tools::Long& nDY,
 129                         DeviceFormat eFormat, const SystemGraphicsData* pData = nullptr) override;
 130
 131     virtual SalInfoPrinter* CreateInfoPrinter(SalPrinterQueueInfo* pQueueInfo,
 132                                               ImplJobSetup* pSetupData) override;
 133     virtual void DestroyInfoPrinter(SalInfoPrinter* pPrinter) override;
 134     virtual std::unique_ptr<SalPrinter> CreatePrinter(SalInfoPrinter* pInfoPrinter) override;
 135     virtual void GetPrinterQueueInfo(ImplPrnQueueList* pList) override;
 136     virtual void GetPrinterQueueState(SalPrinterQueueInfo* pInfo) override;
 137     virtual OUString GetDefaultPrinter() override;
 138     virtual void PostPrintersChanged() override;
 139
 140     virtual std::unique_ptr<SalMenu> CreateMenu(bool, Menu*) override;
 141     virtual std::unique_ptr<SalMenuItem> CreateMenuItem(const SalItemParams&) override;
 142
 143     virtual SalTimer* CreateSalTimer() override;
 144     virtual SalSystem* CreateSalSystem() override;
 145     virtual std::shared_ptr<SalBitmap> CreateSalBitmap() override;
 146
 147     virtual bool DoYield(bool bWait, bool bHandleAllCurrentEvents) override;
 148     virtual bool AnyInput(VclInputFlags nType) override;
 149
 150     std::unique_ptr<weld::Builder> CreateBuilder(weld::Widget* pParent, const OUString& rUIRoot,
 151                                                  const OUString& rUIFile) override;
 152     virtual weld::MessageDialog* CreateMessageDialog(weld::Widget* pParent,
 153                                                      VclMessageType eMessageType,
 154                                                      VclButtonsType eButtonType,
 155                                                      const OUString& rPrimaryMessage) override;
 156
 157 // so we fall back to the default abort, instead of duplicating it...
 158 #ifndef EMSCRIPTEN
 159     virtual OpenGLContext* CreateOpenGLContext() override;
 160 #endif
 161
 162     virtual OUString GetConnectionIdentifier() override;
 163
 164     virtual void AddToRecentDocumentList(const OUString& rFileUrl, const OUString& rMimeType,
 165                                          const OUString& rDocumentService) override;
 166
 167     virtual std::unique_ptr<GenPspGraphics> CreatePrintGraphics() override;
 168
 169     virtual bool IsMainThread() const override;
 170
 171     virtual void TriggerUserEventProcessing() override;
 172     virtual void ProcessEvent(SalUserEvent aEvent) override;
 173
 174     bool hasNativeFileSelection() const override { return true; }
 175     css::uno::Reference<css::ui::dialogs::XFilePicker2>
 176     createFilePicker(const css::uno::Reference<css::uno::XComponentContext>&) override;
 177     css::uno::Reference<css::ui::dialogs::XFolderPicker2>
 178     createFolderPicker(const css::uno::Reference<css::uno::XComponentContext>&) override;
 179
 180     virtual css::uno::Reference<css::uno::XInterface>
 181     CreateClipboard(const css::uno::Sequence<css::uno::Any>& i_rArguments) override;
 182     virtual css::uno::Reference<css::uno::XInterface>
 183     ImplCreateDragSource(const SystemEnvData*) override;
 184     virtual css::uno::Reference<css::uno::XInterface>
 185     ImplCreateDropTarget(const SystemEnvData*) override;
 186
 187     // whether to reduce animations; KFSalInstance overrides this to read Plasma settings
 188     virtual bool GetUseReducedAnimation() { return false; }
 189     void UpdateStyle(bool bFontsChanged);
 190
 191     void* CreateGStreamerSink(const SystemChildWindow*) override;
 192
 193     bool DoExecute(int& nExitCode) override;
 194     void DoQuit() override;
 195
 196     QtFrame* activePopup() const { return m_pActivePopup; }
 197     void setActivePopup(QtFrame*);
 198 };
 199
 200 inline QtInstance& GetQtInstance()
 201 {
 202     QtInstance* pInstance = static_cast<QtInstance*>(GetSalInstance());
 203     assert(pInstance);
 204     return *pInstance;
 205 }
 206
 207 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */