Add basic global keyboard handling for windows with ALT+k #161

src/CMakeLists.txt

@@ -34,15 +34,19 @@ set(KSNIP_SRCS
 	${CMAKE_SOURCE_DIR}/src/gui/SettingsDialog.cpp
 	${CMAKE_SOURCE_DIR}/src/gui/AboutDialog.cpp
 	${CMAKE_SOURCE_DIR}/src/gui/ImgurHistoryDialog.cpp
+	${CMAKE_SOURCE_DIR}/src/gui/keyboardShortcuts/GlobalKeyboardShortcut.cpp
+	${CMAKE_SOURCE_DIR}/src/gui/keyboardShortcuts/NativeKeyEventFilter.cpp
+	${CMAKE_SOURCE_DIR}/src/gui/keyboardShortcuts/AbstractKeyHandler.cpp
+	${CMAKE_SOURCE_DIR}/src/gui/keyboardShortcuts/KeyHandlerFactory.cpp
 	)
 
-
 if (APPLE)
 	set(KSNIP_SRCS
 			${KSNIP_SRCS}
 			${CMAKE_SOURCE_DIR}/src/backend/imageGrabber/MacImageGrabber.cpp
 			${CMAKE_SOURCE_DIR}/src/backend/imageGrabber/MacWrapper.cpp
 			${CMAKE_SOURCE_DIR}/src/gui/snippingArea/MacSnippingArea.cpp
+			${CMAKE_SOURCE_DIR}/src/gui/keyboardShortcuts/DummyKeyHandler.cpp
 			)
 elseif (UNIX)
     set(KSNIP_SRCS
@@ -54,13 +58,15 @@ elseif (UNIX)
 		${CMAKE_SOURCE_DIR}/src/common/platform/PlatformChecker.cpp
 		${CMAKE_SOURCE_DIR}/src/common/platform/CommandRunner.cpp
 		${CMAKE_SOURCE_DIR}/src/gui/snippingArea/LinuxSnippingArea.cpp
+		${CMAKE_SOURCE_DIR}/src/gui/keyboardShortcuts/DummyKeyHandler.cpp
 		)
 elseif (WIN32)
 	set(KSNIP_SRCS
 		${KSNIP_SRCS}
 		${CMAKE_SOURCE_DIR}/src/backend/imageGrabber/WinImageGrabber.cpp
 		${CMAKE_SOURCE_DIR}/src/backend/imageGrabber/WinWrapper.cpp
 		${CMAKE_SOURCE_DIR}/src/gui/snippingArea/WinSnippingArea.cpp
+		${CMAKE_SOURCE_DIR}/src/gui/keyboardShortcuts/WinKeyHandler.cpp
 		)
 endif ()
 

src/gui/ImgurHistoryDialog.h

@@ -36,7 +36,7 @@ class ImgurHistoryDialog : public QDialog
 Q_OBJECT
 public:
 	explicit ImgurHistoryDialog();
-	~ImgurHistoryDialog();
+	~ImgurHistoryDialog() override;
 
 private:
 	QVBoxLayout *mLayout;

src/gui/MainWindow.cpp

@@ -134,6 +134,11 @@ void MainWindow::showEmpty()
     QMainWindow::show();
 }
 
+void MainWindow::triggerNewDefaultCapture()
+{
+    triggerNewCapture(mConfig->captureMode());
+}
+
 QMenu* MainWindow::createPopupMenu()
 {
     // Filtering out the option to hide main toolbar which should no be allowed.

src/gui/MainWindow.h

@@ -45,16 +45,17 @@ class MainWindow : public QMainWindow
 public:
     explicit MainWindow(AbstractImageGrabber *imageGrabber, RunMode mode = RunMode::GUI);
     void showEmpty();
-    void captureScreenshot(CaptureModes captureMode, bool capureCursor, int delay);
-    QMenu *createPopupMenu() override;
-    QSize sizeHint() const override;
+    void captureScreenshot(CaptureModes captureMode, bool captureCursor, int delay);
 
 public slots:
     void showCapture(const QPixmap &screenshot);
+    void triggerNewDefaultCapture();
 
 protected:
     void moveEvent(QMoveEvent *event) override;
     void closeEvent(QCloseEvent *event) override;
+    QMenu *createPopupMenu() override;
+    QSize sizeHint() const override;
 
 private:
     AbstractImageGrabber *mImageGrabber;

src/gui/keyboardShortcuts/AbstractKeyHandler.cpp

@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) 2019 Damir Porobic <https://github.com/damirporobic>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "AbstractKeyHandler.h"

src/gui/keyboardShortcuts/AbstractKeyHandler.h

@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2019 Damir Porobic <https://github.com/damirporobic>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef KSNIP_ABSTRACTKEYHANDLER_H
+#define KSNIP_ABSTRACTKEYHANDLER_H
+
+class AbstractKeyHandler
+{
+public:
+    AbstractKeyHandler() = default;
+    virtual ~AbstractKeyHandler() = default;
+
+    virtual bool registerKey() = 0;
+    virtual bool isKeyPressed(void* message) = 0;
+};
+
+#endif //KSNIP_ABSTRACTKEYHANDLER_H

src/gui/keyboardShortcuts/DummyKeyHandler.cpp

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2019 Damir Porobic <https://github.com/damirporobic>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "DummyKeyHandler.h"
+
+bool DummyKeyHandler::registerKey()
+{
+    return false;
+}
+
+bool DummyKeyHandler::isKeyPressed(void* message)
+{
+    return false;
+}

src/gui/keyboardShortcuts/DummyKeyHandler.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2019 Damir Porobic <https://github.com/damirporobic>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef KSNIP_DUMMYKEYHANDLER_H
+#define KSNIP_DUMMYKEYHANDLER_H
+
+#include "AbstractKeyHandler.h"
+
+class DummyKeyHandler : public AbstractKeyHandler
+{
+public:
+    DummyKeyHandler() = default;
+    ~DummyKeyHandler() override = default;
+
+    bool registerKey() override;
+    bool isKeyPressed(void* message) override;
+};
+
+#endif //KSNIP_DUMMYKEYHANDLER_H

src/gui/keyboardShortcuts/GlobalKeyboardShortcut.cpp

@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2019 Damir Porobic <https://github.com/damirporobic>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "GlobalKeyboardShortcut.h"
+
+GlobalKeyboardShortcut::GlobalKeyboardShortcut(QApplication &app) : mKeyHandler(nullptr)
+{
+    mKeyHandler = KeyHandlerFactory::create();
+
+    mKeyHandler->registerKey();
+
+    auto keyEventFilter = new NativeKeyEventFilter(mKeyHandler);
+    connect(keyEventFilter, &NativeKeyEventFilter::triggered, this, &GlobalKeyboardShortcut::pressed);
+    app.installNativeEventFilter(keyEventFilter);
+}
+
+GlobalKeyboardShortcut::~GlobalKeyboardShortcut()
+{
+    delete mKeyHandler;
+}

src/gui/keyboardShortcuts/GlobalKeyboardShortcut.h

@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2019 Damir Porobic <https://github.com/damirporobic>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef KSNIP_GLOBALKEYBOARDSHORTCUT_H
+#define KSNIP_GLOBALKEYBOARDSHORTCUT_H
+
+#include <QApplication>
+#include <QObject>
+
+#include "NativeKeyEventFilter.h"
+#include "KeyHandlerFactory.h"
+
+class GlobalKeyboardShortcut : public QObject
+{
+    Q_OBJECT
+public:
+    explicit GlobalKeyboardShortcut(QApplication &app);
+    ~GlobalKeyboardShortcut() override;
+
+signals:
+    void pressed() const;
+
+private:
+    AbstractKeyHandler *mKeyHandler;
+};
+
+#endif //KSNIP_GLOBALKEYBOARDSHORTCUT_H

src/gui/keyboardShortcuts/KeyHandlerFactory.cpp

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2019 Damir Porobic <https://github.com/damirporobic>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "KeyHandlerFactory.h"
+
+AbstractKeyHandler* KeyHandlerFactory::create()
+{
+#if defined(__APPLE__)
+    return new DummyKeyHandler;
+#endif
+
+#if defined(__linux__)
+    return new DummyKeyHandler;
+#endif
+
+#if  defined(_WIN32)
+    return new WinKeyHandler;
+#endif
+}

src/gui/keyboardShortcuts/KeyHandlerFactory.h

@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2019 Damir Porobic <https://github.com/damirporobic>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef KSNIP_KEYHANDLERFACTORY_H
+#define KSNIP_KEYHANDLERFACTORY_H
+
+#if defined(__APPLE__)
+#include "DummyKeyHandler.h"
+#endif
+
+#if defined(__linux__)
+#include "DummyKeyHandler.h"
+#endif
+
+#if  defined(_WIN32)
+#include "WinKeyHandler.h"
+#endif
+
+class KeyHandlerFactory
+{
+public:
+    static AbstractKeyHandler* create();
+};
+
+#endif //KSNIP_KEYHANDLERFACTORY_H

src/gui/keyboardShortcuts/NativeKeyEventFilter.cpp

@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2019 Damir Porobic <https://github.com/damirporobic>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "NativeKeyEventFilter.h"
+
+NativeKeyEventFilter::NativeKeyEventFilter(AbstractKeyHandler *keyHandler)
+{
+    mKeyHandler = keyHandler;
+}
+
+bool NativeKeyEventFilter::nativeEventFilter(const QByteArray&, void* message, long*) {
+
+    if(mKeyHandler->isKeyPressed(message)) {
+        emit triggered();
+    }
+    return false;
+}