136 lines
4.6 KiB
C++
136 lines
4.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) Qxt Foundation. Some rights reserved.
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**
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** This file is part of the QxtGui module of the Qxt library.
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**
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** This library is free software; you can redistribute it and/or modify it
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** under the terms of the Common Public License, version 1.0, as published
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** by IBM, and/or under the terms of the GNU Lesser General Public License,
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** version 2.1, as published by the Free Software Foundation.
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**
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** This file is provided "AS IS", without WARRANTIES OR CONDITIONS OF ANY
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** KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
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** WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR
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** FITNESS FOR A PARTICULAR PURPOSE.
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**
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** You should have received a copy of the CPL and the LGPL along with this
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** file. See the LICENSE file and the cpl1.0.txt/lgpl-2.1.txt files
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** included with the source distribution for more information.
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** If you did not receive a copy of the licenses, contact the Qxt Foundation.
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**
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** <http://libqxt.org> <foundation@libqxt.org>
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**
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****************************************************************************/
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#include "qxtglobalshortcut_p.h"
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#include <QX11Info>
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#include <X11/Xlib.h>
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#include "keymapper_x11.h"
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static int (*original_x_errhandler)(Display* display, XErrorEvent* event);
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static int qxt_x_errhandler(Display* display, XErrorEvent *event)
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{
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Q_UNUSED(display);
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switch (event->error_code)
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{
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case BadAccess:
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case BadValue:
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case BadWindow:
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if (event->request_code == 33 /* X_GrabKey */ ||
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event->request_code == 34 /* X_UngrabKey */)
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{
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QxtGlobalShortcutPrivate::error = true;
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//TODO:
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//char errstr[256];
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//XGetErrorText(dpy, err->error_code, errstr, 256);
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}
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default:
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return 0;
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}
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}
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bool QxtGlobalShortcutPrivate::eventFilter(void* message)
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{
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XEvent* event = static_cast<XEvent*>(message);
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if (event->type == KeyPress)
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{
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XKeyEvent* key = (XKeyEvent*) event;
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activateShortcut(key->keycode,
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// Mod1Mask == Alt, Mod4Mask == Meta
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key->state & (ShiftMask | ControlMask | Mod1Mask | Mod4Mask));
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}
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return false;
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}
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quint32 QxtGlobalShortcutPrivate::nativeModifiers(Qt::KeyboardModifiers modifiers)
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{
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// ShiftMask, LockMask, ControlMask, Mod1Mask, Mod2Mask, Mod3Mask, Mod4Mask, and Mod5Mask
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quint32 native = 0;
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if (modifiers & Qt::ShiftModifier)
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native |= ShiftMask;
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if (modifiers & Qt::ControlModifier)
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native |= ControlMask;
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if (modifiers & Qt::AltModifier)
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native |= Mod1Mask;
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if (modifiers & Qt::MetaModifier)
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native |= Mod4Mask;
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// TODO: resolve these?
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//if (modifiers & Qt::KeypadModifier)
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//if (modifiers & Qt::GroupSwitchModifier)
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return native;
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}
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quint32 QxtGlobalShortcutPrivate::nativeKeycode(Qt::Key key)
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{
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// (davidsansome) Try the table from QKeyMapper first - this seems to be
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// the only way to get Keysyms for the media keys.
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unsigned int keysym = 0;
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int i = 0;
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while (KeyTbl[i]) {
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if (KeyTbl[i+1] == static_cast<uint>(key)) {
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keysym = KeyTbl[i];
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break;
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}
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i += 2;
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}
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// If that didn't work then fall back on XStringToKeysym
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if (!keysym) {
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keysym = XStringToKeysym(QKeySequence(key).toString().toLatin1().data());
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}
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Display* display = QX11Info::display();
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return XKeysymToKeycode(display, keysym);
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}
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bool QxtGlobalShortcutPrivate::registerShortcut(quint32 nativeKey, quint32 nativeMods)
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{
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Display* display = QX11Info::display();
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Window window = QX11Info::appRootWindow();
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Bool owner = True;
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int pointer = GrabModeAsync;
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int keyboard = GrabModeAsync;
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error = false;
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original_x_errhandler = XSetErrorHandler(qxt_x_errhandler);
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XGrabKey(display, nativeKey, nativeMods, window, owner, pointer, keyboard);
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XGrabKey(display, nativeKey, nativeMods | Mod2Mask, window, owner, pointer, keyboard); // allow numlock
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XSync(display, False);
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XSetErrorHandler(original_x_errhandler);
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return !error;
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}
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bool QxtGlobalShortcutPrivate::unregisterShortcut(quint32 nativeKey, quint32 nativeMods)
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{
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Display* display = QX11Info::display();
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Window window = QX11Info::appRootWindow();
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error = false;
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original_x_errhandler = XSetErrorHandler(qxt_x_errhandler);
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XUngrabKey(display, nativeKey, nativeMods, window);
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XUngrabKey(display, nativeKey, nativeMods | Mod2Mask, window); // allow numlock
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XSync(display, False);
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XSetErrorHandler(original_x_errhandler);
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return !error;
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}
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