1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the plugins of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QWINDOWSINPUTCONTEXT_H 41 #define QWINDOWSINPUTCONTEXT_H 42 43 #include <QtCore/qt_windows.h> 44 45 #include <QtCore/qlocale.h> 46 #include <QtCore/qpointer.h> 47 #include <qpa/qplatforminputcontext.h> 48 49 QT_BEGIN_NAMESPACE 50 51 class QInputMethodEvent; 52 class QWindowsWindow; 53 54 class QWindowsInputContext : public QPlatformInputContext 55 { 56 Q_DISABLE_COPY_MOVE(QWindowsInputContext) 57 Q_OBJECT 58 59 struct CompositionContext 60 { 61 HWND hwnd = nullptr; 62 QString composition; 63 int position = 0; 64 bool isComposing = false; 65 QPointer<QObject> focusObject; 66 }; 67 public: 68 explicit QWindowsInputContext(); 69 ~QWindowsInputContext() override; 70 71 static void setWindowsImeEnabled(QWindowsWindow *platformWindow, bool enabled); 72 73 bool hasCapability(Capability capability) const override; locale()74 QLocale locale() const override { return m_locale; } 75 76 void reset() override; 77 void update(Qt::InputMethodQueries) override; 78 void invokeAction(QInputMethod::Action, int cursorPosition) override; 79 void setFocusObject(QObject *object) override; 80 81 QRectF keyboardRect() const override; 82 bool isInputPanelVisible() const override; 83 void showInputPanel() override; 84 void hideInputPanel() override; 85 86 bool startComposition(HWND hwnd); 87 bool composition(HWND hwnd, LPARAM lParam); 88 bool endComposition(HWND hwnd); isComposing()89 inline bool isComposing() const { return m_compositionContext.isComposing; } 90 91 int reconvertString(RECONVERTSTRING *reconv); 92 93 bool handleIME_Request(WPARAM wparam, LPARAM lparam, LRESULT *result); 94 void handleInputLanguageChanged(WPARAM wparam, LPARAM lparam); 95 96 private slots: 97 void cursorRectChanged(); 98 99 private: 100 void initContext(HWND hwnd, QObject *focusObject); 101 void doneContext(); 102 void startContextComposition(); 103 void endContextComposition(); 104 void updateEnabled(); 105 HWND getVirtualKeyboardWindowHandle() const; 106 107 const DWORD m_WM_MSIME_MOUSE; 108 bool m_caretCreated = false; 109 HBITMAP m_transparentBitmap; 110 CompositionContext m_compositionContext; 111 bool m_endCompositionRecursionGuard = false; 112 LCID m_languageId; 113 QLocale m_locale; 114 }; 115 116 QT_END_NAMESPACE 117 118 #endif // QWINDOWSINPUTCONTEXT_H 119