File indexing completed on 2024-04-28 05:30:21

 /*
     KWin - the KDE window manager
     This file is part of the KDE project.
 
     SPDX-FileCopyrightText: 2016 Martin Gräßlin <mgraesslin@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 #pragma once
 
 #include "wayland/textinput_v2.h"
 
 #include <utility>
 #include <vector>
 
 #include <QObject>
 
 #include "effect/globals.h"
 #include <kwin_export.h>
 
 #include <QPointer>
 #include <QTimer>
 
 class QProcess;
 
 namespace KWin
 {
 
 class Window;
 class InputPanelV1Window;
 class InputMethodGrabV1;
 
 /**
  * This class implements the zwp_input_method_unstable_v1, which is currently used to provide
  * the Virtual Keyboard using supported input method client (maliit-keyboard e.g.)
  **/
 class KWIN_EXPORT InputMethod : public QObject
 {
     Q_OBJECT
 public:
     enum ForwardModifiersForce {
         NoForce = 0,
         Force = 1,
     };
 
     InputMethod();
     ~InputMethod() override;
 
     void init();
     void setEnabled(bool enable);
     bool isEnabled() const
     {
         return m_enabled;
     }
     bool isActive() const;
     void setActive(bool active);
     void hide();
     void show();
     bool isVisible() const;
     bool isAvailable() const;
 
     InputPanelV1Window *panel() const;
     void setPanel(InputPanelV1Window *panel);
     void setInputMethodCommand(const QString &path);
 
     InputMethodGrabV1 *keyboardGrab();
     bool shouldShowOnActive() const;
 
     void forwardModifiers(ForwardModifiersForce force);
     bool activeClientSupportsTextInput() const;
     void forceActivate();
 
 Q_SIGNALS:
     void panelChanged();
     void activeChanged(bool active);
     void enabledChanged(bool enabled);
     void visibleChanged();
     void availableChanged();
     void activeClientSupportsTextInputChanged();
 
 private Q_SLOTS:
     // textinput interface slots
     void handleFocusedSurfaceChanged();
     void surroundingTextChanged();
     void contentTypeChanged();
     void textInputInterfaceV1EnabledChanged();
     void textInputInterfaceV2EnabledChanged();
     void textInputInterfaceV3EnabledChanged();
     void stateCommitted(uint32_t serial);
     void textInputInterfaceV1StateUpdated(quint32 serial);
     void textInputInterfaceV1Reset();
     void invokeAction(quint32 button, quint32 index);
     void textInputInterfaceV2StateUpdated(quint32 serial, KWin::TextInputV2Interface::UpdateReason reason);
     void textInputInterfaceV3EnableRequested();
 
     // inputcontext slots
     void setPreeditString(uint32_t serial, const QString &text, const QString &commit);
     void setPreeditStyling(quint32 index, quint32 length, quint32 style);
     void setPreeditCursor(qint32 index);
     void key(quint32 serial, quint32 time, quint32 key, bool pressed);
     void modifiers(quint32 serial, quint32 mods_depressed, quint32 mods_latched, quint32 mods_locked, quint32 group);
 
 private:
     void updateInputPanelState();
     void adoptInputMethodContext();
     void commitString(qint32 serial, const QString &text);
     void keysymReceived(quint32 serial, quint32 time, quint32 sym, bool pressed, quint32 modifiers);
     void deleteSurroundingText(int32_t index, uint32_t length);
     void setCursorPosition(qint32 index, qint32 anchor);
     void setLanguage(uint32_t serial, const QString &language);
     void setTextDirection(uint32_t serial, Qt::LayoutDirection direction);
     void startInputMethod();
     void stopInputMethod();
     void setTrackedWindow(Window *trackedWindow);
     void installKeyboardGrab(InputMethodGrabV1 *keyboardGrab);
     void updateModifiersMap(const QByteArray &modifiers);
 
     bool touchEventTriggered() const;
     void resetPendingPreedit();
     void refreshActive();
 
     struct
     {
         QString text = QString();
         qint32 cursor = 0;
         std::vector<std::pair<quint32, quint32>> highlightRanges;
     } preedit;
 
     bool m_enabled = true;
     quint32 m_serial = 0;
     QPointer<InputPanelV1Window> m_panel;
     QPointer<Window> m_trackedWindow;
     QPointer<InputMethodGrabV1> m_keyboardGrab;
 
     QProcess *m_inputMethodProcess = nullptr;
     QTimer m_inputMethodCrashTimer;
     uint m_inputMethodCrashes = 0;
     QString m_inputMethodCommand;
 
     bool m_hasPendingModifiers = false;
     bool m_activeClientSupportsTextInput = false;
     bool m_shouldShowPanel = false;
 };
 
 }