1 files changed, 115 insertions, 0 deletions
diff --git a/src/fqterm/3rdparty/qxtglobalshortcut_x11.cpp b/src/fqterm/3rdparty/qxtglobalshortcut_x11.cpp
new file mode 100644
index 0000000..2b2e6b7
--- /dev/null
+++ b/src/fqterm/3rdparty/qxtglobalshortcut_x11.cpp
@@ -0,0 +1,115 @@
+/****************************************************************************
+ **
+ ** Copyright (C) Qxt Foundation. Some rights reserved.
+ **
+ ** This file is part of the QxtGui module of the Qxt library.
+ **
+ ** This library is free software; you can redistribute it and/or modify it
+ ** under the terms of the Common Public License, version 1.0, as published
+ ** by IBM, and/or under the terms of the GNU Lesser General Public License,
+ ** version 2.1, as published by the Free Software Foundation.
+ **
+ ** This file is provided "AS IS", without WARRANTIES OR CONDITIONS OF ANY
+ ** KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
+ ** WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR
+ ** FITNESS FOR A PARTICULAR PURPOSE.
+ **
+ ** You should have received a copy of the CPL and the LGPL along with this
+ ** file. See the LICENSE file and the cpl1.0.txt/lgpl-2.1.txt files
+ ** included with the source distribution for more information.
+ ** If you did not receive a copy of the licenses, contact the Qxt Foundation.
+ **
+ ** <http://libqxt.org>  <foundation@libqxt.org>
+ **
+ ****************************************************************************/
+#include "qxtglobalshortcut_p.h"
+#include <QX11Info>
+#include <X11/Xlib.h>
+
+static int (*original_x_errhandler)(Display* display, XErrorEvent* event);
+
+static int qxt_x_errhandler(Display* display, XErrorEvent *event)
+{
+    Q_UNUSED(display);
+    switch (event->error_code)
+    {
+        case BadAccess:
+        case BadValue:
+        case BadWindow:
+            if (event->request_code == 33 /* X_GrabKey */ ||
+                event->request_code == 34 /* X_UngrabKey */)
+            {
+                QxtGlobalShortcutPrivate::error = true;
+                //TODO:
+                //char errstr[256];
+                //XGetErrorText(dpy, err->error_code, errstr, 256);
+            }
+        default:
+            return 0;
+    }
+}
+
+bool QxtGlobalShortcutPrivate::eventFilter(void* message)
+{
+    XEvent* event = static_cast<XEvent*>(message);
+    if (event->type == KeyPress)
+    {
+        XKeyEvent* key = (XKeyEvent*) event;
+        activateShortcut(key->keycode, 
+            // Mod1Mask == Alt, Mod4Mask == Meta
+            key->state & (ShiftMask | ControlMask | Mod1Mask | Mod4Mask));
+    }
+    return false;
+}
+
+quint32 QxtGlobalShortcutPrivate::nativeModifiers(Qt::KeyboardModifiers modifiers)
+{
+    // ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, and Mod5Mask
+    quint32 native = 0;
+    if (modifiers & Qt::ShiftModifier)
+        native |= ShiftMask;
+    if (modifiers & Qt::ControlModifier)
+        native |= ControlMask;
+    if (modifiers & Qt::AltModifier)
+        native |= Mod1Mask;
+    // TODO: resolve these?
+    //if (modifiers & Qt::MetaModifier)
+    //if (modifiers & Qt::KeypadModifier)
+    //if (modifiers & Qt::GroupSwitchModifier)
+    return native;
+}
+
+quint32 QxtGlobalShortcutPrivate::nativeKeycode(Qt::Key key)
+{
+    Display* display = QX11Info::display();
+    return XKeysymToKeycode(display, XStringToKeysym(QKeySequence(key).toString().toLatin1().data()));
+}
+
+bool QxtGlobalShortcutPrivate::registerShortcut(quint32 nativeKey, quint32 nativeMods)
+{
+    Display* display = QX11Info::display();
+    Window window = QX11Info::appRootWindow();
+    Bool owner = True;
+    int pointer = GrabModeAsync;
+    int keyboard = GrabModeAsync;
+    error = false;
+    original_x_errhandler = XSetErrorHandler(qxt_x_errhandler);
+    XGrabKey(display, nativeKey, nativeMods, window, owner, pointer, keyboard);
+    XGrabKey(display, nativeKey, nativeMods | Mod2Mask, window, owner, pointer, keyboard); // allow numlock
+    XSync(display, False);
+    XSetErrorHandler(original_x_errhandler);
+    return !error;
+}
+
+bool QxtGlobalShortcutPrivate::unregisterShortcut(quint32 nativeKey, quint32 nativeMods)
+{
+    Display* display = QX11Info::display();
+    Window window = QX11Info::appRootWindow();
+    error = false;
+    original_x_errhandler = XSetErrorHandler(qxt_x_errhandler);
+    XUngrabKey(display, nativeKey, nativeMods, window);
+    XUngrabKey(display, nativeKey, nativeMods | Mod2Mask, window); // allow numlock
+    XSync(display, False);
+    XSetErrorHandler(original_x_errhandler);
+    return !error;
+}