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https://github.com/xiaoyifang/goldendict-ng.git
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refactor: move X11 global hotkey out of hotkeywrapper.cc
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This commit is contained in:
shenleban tongying
GitHub
parent
9a544c5715
commit
5b70a7e081
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@ -250,329 +250,4 @@ bool HotkeyWrapper::checkState( quint32 vk, quint32 mod )
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state2 = false;
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return false;
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}
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#ifndef Q_OS_WIN
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//////////////////////////////////////////////////////////////////////////
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#include <X11/keysym.h>
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void HotkeyWrapper::init()
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{
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keyToUngrab = grabbedKeys.end();
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#if QT_VERSION < 0x060000
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Display * displayID = QX11Info::display();
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#else
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QNativeInterface::QX11Application * x11AppInfo = qApp->nativeInterface< QNativeInterface::QX11Application >();
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Display * displayID = x11AppInfo->display();
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#endif
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// We use RECORD extension instead of XGrabKey. That's because XGrabKey
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// prevents other clients from getting their input if it's grabbed.
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Display * display = displayID;
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lShiftCode = XKeysymToKeycode( display, XK_Shift_L );
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rShiftCode = XKeysymToKeycode( display, XK_Shift_R );
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lCtrlCode = XKeysymToKeycode( display, XK_Control_L );
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rCtrlCode = XKeysymToKeycode( display, XK_Control_R );
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lAltCode = XKeysymToKeycode( display, XK_Alt_L );
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rAltCode = XKeysymToKeycode( display, XK_Alt_R );
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lMetaCode = XKeysymToKeycode( display, XK_Super_L );
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rMetaCode = XKeysymToKeycode( display, XK_Super_R );
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cCode = XKeysymToKeycode( display, XK_c );
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insertCode = XKeysymToKeycode( display, XK_Insert );
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kpInsertCode = XKeysymToKeycode( display, XK_KP_Insert );
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currentModifiers = 0;
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// This one will be used to read the recorded content
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dataDisplay = XOpenDisplay( 0 );
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if ( !dataDisplay )
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throw exInit();
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recordRange = XRecordAllocRange();
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if ( !recordRange ) {
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XCloseDisplay( dataDisplay );
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throw exInit();
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}
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recordRange->device_events.first = KeyPress;
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recordRange->device_events.last = KeyRelease;
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recordClientSpec = XRecordAllClients;
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recordContext = XRecordCreateContext( display, 0, &recordClientSpec, 1, &recordRange, 1 );
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if ( !recordContext ) {
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XFree( recordRange );
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XCloseDisplay( dataDisplay );
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throw exInit();
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}
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// This is required to ensure context was indeed created
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XSync( display, False );
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connect( this, &HotkeyWrapper::keyRecorded, this, &HotkeyWrapper::checkState, Qt::QueuedConnection );
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start();
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}
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void HotkeyWrapper::run() // Runs in a separate thread
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{
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if ( !XRecordEnableContext( dataDisplay, recordContext, recordEventCallback, (XPointer)this ) )
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qDebug( "Failed to enable record context" );
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}
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void HotkeyWrapper::recordEventCallback( XPointer ptr, XRecordInterceptData * data )
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{
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( (HotkeyWrapper *)ptr )->handleRecordEvent( data );
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}
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void HotkeyWrapper::handleRecordEvent( XRecordInterceptData * data )
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{
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if ( data->category == XRecordFromServer ) {
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xEvent * event = (xEvent *)data->data;
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if ( event->u.u.type == KeyPress ) {
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KeyCode key = event->u.u.detail;
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if ( key == lShiftCode || key == rShiftCode )
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currentModifiers |= ShiftMask;
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else if ( key == lCtrlCode || key == rCtrlCode )
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currentModifiers |= ControlMask;
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else if ( key == lAltCode || key == rAltCode )
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currentModifiers |= Mod1Mask;
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else if ( key == lMetaCode || key == rMetaCode )
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currentModifiers |= Mod4Mask;
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else {
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// Here we employ a kind of hack translating KP_Insert key
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// to just Insert. This allows reacting to both Insert keys.
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if ( key == kpInsertCode )
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key = insertCode;
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emit keyRecorded( key, currentModifiers );
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}
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}
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else if ( event->u.u.type == KeyRelease ) {
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KeyCode key = event->u.u.detail;
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if ( key == lShiftCode || key == rShiftCode )
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currentModifiers &= ~ShiftMask;
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else if ( key == lCtrlCode || key == rCtrlCode )
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currentModifiers &= ~ControlMask;
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else if ( key == lAltCode || key == rAltCode )
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currentModifiers &= ~Mod1Mask;
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else if ( key == lMetaCode || key == rMetaCode )
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currentModifiers &= ~Mod4Mask;
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}
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}
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XRecordFreeData( data );
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}
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bool HotkeyWrapper::setGlobalKey( QKeySequence const & seq, int handle )
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{
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Config::HotKey hk( seq );
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return setGlobalKey( hk.key1, hk.key2, hk.modifiers, handle );
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}
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bool HotkeyWrapper::setGlobalKey( int key, int key2, Qt::KeyboardModifiers modifier, int handle )
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{
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if ( !key )
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return false; // We don't monitor empty combinations
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int vk = nativeKey( key );
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int vk2 = key2 ? nativeKey( key2 ) : 0;
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quint32 mod = 0;
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if ( modifier & Qt::ShiftModifier )
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mod |= ShiftMask;
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if ( modifier & Qt::ControlModifier )
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mod |= ControlMask;
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if ( modifier & Qt::AltModifier )
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mod |= Mod1Mask;
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if ( modifier & Qt::MetaModifier )
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mod |= Mod4Mask;
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hotkeys.append( HotkeyStruct( vk, vk2, mod, handle, 0 ) );
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if ( !isCopyToClipboardKey( vk, mod ) )
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grabKey( vk, mod ); // Make sure it doesn't get caught by other apps
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return true;
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}
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bool HotkeyWrapper::isCopyToClipboardKey( quint32 keyCode, quint32 modifiers ) const
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{
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return modifiers == ControlMask && ( keyCode == cCode || keyCode == insertCode || keyCode == kpInsertCode );
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}
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bool HotkeyWrapper::isKeyGrabbed( quint32 keyCode, quint32 modifiers ) const
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{
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GrabbedKeys::const_iterator i = grabbedKeys.find( std::make_pair( keyCode, modifiers ) );
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return i != grabbedKeys.end();
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}
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namespace {
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using X11ErrorHandler = int ( * )( Display * display, XErrorEvent * event );
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class X11GrabUngrabErrorHandler
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{
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public:
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static bool error;
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static int grab_ungrab_error_handler( Display *, XErrorEvent * event )
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{
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qDebug() << "grab_ungrab_error_handler is invoked";
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switch ( event->error_code ) {
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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 */ || event->request_code == 34 /* X_UngrabKey */ ) {
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error = true;
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}
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}
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return 0;
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}
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X11GrabUngrabErrorHandler()
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{
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error = false;
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previousErrorHandler_ = XSetErrorHandler( grab_ungrab_error_handler );
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}
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~X11GrabUngrabErrorHandler()
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{
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#if QT_VERSION < 0x060000
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Display * displayID = QX11Info::display();
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#else
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QNativeInterface::QX11Application * x11AppInfo = qApp->nativeInterface< QNativeInterface::QX11Application >();
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Display * displayID = x11AppInfo->display();
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#endif
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XFlush( displayID );
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(void)XSetErrorHandler( previousErrorHandler_ );
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}
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bool isError() const
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{
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#if QT_VERSION < 0x060000
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Display * displayID = QX11Info::display();
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#else
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QNativeInterface::QX11Application * x11AppInfo = qApp->nativeInterface< QNativeInterface::QX11Application >();
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Display * displayID = x11AppInfo->display();
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#endif
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XFlush( displayID );
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return error;
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}
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private:
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X11ErrorHandler previousErrorHandler_;
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};
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bool X11GrabUngrabErrorHandler::error = false;
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} // anonymous namespace
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HotkeyWrapper::GrabbedKeys::iterator HotkeyWrapper::grabKey( quint32 keyCode, quint32 modifiers )
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{
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std::pair< GrabbedKeys::iterator, bool > result = grabbedKeys.insert( std::make_pair( keyCode, modifiers ) );
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if ( result.second ) {
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#if QT_VERSION < 0x060000
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Display * displayID = QX11Info::display();
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#else
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QNativeInterface::QX11Application * x11AppInfo = qApp->nativeInterface< QNativeInterface::QX11Application >();
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Display * displayID = x11AppInfo->display();
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#endif
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X11GrabUngrabErrorHandler errorHandler;
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XGrabKey( displayID, keyCode, modifiers, DefaultRootWindow( displayID ), True, GrabModeAsync, GrabModeAsync );
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if ( errorHandler.isError() ) {
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qWarning( "Possible hotkeys conflict. Check your hotkeys options." );
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ungrabKey( result.first );
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}
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}
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return result.first;
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}
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void HotkeyWrapper::ungrabKey( GrabbedKeys::iterator i )
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{
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#if QT_VERSION < 0x060000
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Display * displayID = QX11Info::display();
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#else
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QNativeInterface::QX11Application * x11AppInfo = qApp->nativeInterface< QNativeInterface::QX11Application >();
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Display * displayID = x11AppInfo->display();
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#endif
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X11GrabUngrabErrorHandler errorHandler;
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XUngrabKey( displayID, i->first, i->second, XDefaultRootWindow( displayID ) );
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grabbedKeys.erase( i );
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if ( errorHandler.isError() ) {
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qWarning( "Cannot ungrab the hotkey" );
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}
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}
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quint32 HotkeyWrapper::nativeKey( int key )
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{
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QString keySymName;
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switch ( key ) {
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case Qt::Key_Insert:
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keySymName = "Insert";
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break;
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default:
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keySymName = QKeySequence( key ).toString();
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break;
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}
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#if QT_VERSION < 0x060000
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Display * displayID = QX11Info::display();
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#else
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QNativeInterface::QX11Application * x11AppInfo = qApp->nativeInterface< QNativeInterface::QX11Application >();
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Display * displayID = x11AppInfo->display();
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#endif
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Display * display = displayID;
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return XKeysymToKeycode( display, XStringToKeysym( keySymName.toLatin1().data() ) );
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}
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void HotkeyWrapper::unregister()
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{
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#if QT_VERSION < 0x060000
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Display * displayID = QX11Info::display();
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#else
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QNativeInterface::QX11Application * x11AppInfo = qApp->nativeInterface< QNativeInterface::QX11Application >();
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Display * displayID = x11AppInfo->display();
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#endif
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Display * display = displayID;
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XRecordDisableContext( display, recordContext );
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XSync( display, False );
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wait();
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XRecordFreeContext( display, recordContext );
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XFree( recordRange );
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XCloseDisplay( dataDisplay );
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while ( grabbedKeys.size() )
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ungrabKey( grabbedKeys.begin() );
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( static_cast< QHotkeyApplication * >( qApp ) )->unregisterWrapper( this );
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}
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#endif
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#endif
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@ -1,15 +1,14 @@
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#pragma once
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/// @file
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/// Handling global hotkeys and some tricks
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/// Part of this header are implmented in
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/// + `winhotkeywrapper.cc`
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/// + `machotkeywrapper.hh`
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///
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/// Handling global hotkeys and some trick
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/// Part of this header is implemented in
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/// + `winhotkeywrapper`
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/// + `machotkeywrapper`
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/// + `x11hotkeywrapper`
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#include <QGuiApplication>
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#include <QThread>
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#include "config.hh"
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#include "ex.hh"
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#include "qtsingleapplication.h"
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@ -124,7 +123,7 @@ private:
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/// Called by recordEventCallback()
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void handleRecordEvent( XRecordInterceptData * );
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void run(); // QThread
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void run() override; // QThread
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// We do one-time init of those, translating keysyms to keycodes
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KeyCode lShiftCode, rShiftCode, lCtrlCode, rCtrlCode, lAltCode, rAltCode, cCode, insertCode, kpInsertCode, lMetaCode,
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309
src/unix/x11hotkeywrapper.cc
Normal file
309
src/unix/x11hotkeywrapper.cc
Normal file
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@ -0,0 +1,309 @@
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#ifdef HAVE_X11
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#include "hotkeywrapper.hh"
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#include <X11/keysym.h>
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//
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/// Previously impletended with XGrabKey
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/// Then reimplemented with X Record Extension Library
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///
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void HotkeyWrapper::init()
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{
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keyToUngrab = grabbedKeys.end();
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QNativeInterface::QX11Application * x11AppInfo = qApp->nativeInterface< QNativeInterface::QX11Application >();
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Display * displayID = x11AppInfo->display();
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// We use RECORD extension instead of XGrabKey. That's because XGrabKey
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// prevents other clients from getting their input if it's grabbed.
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Display * display = displayID;
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lShiftCode = XKeysymToKeycode( display, XK_Shift_L );
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rShiftCode = XKeysymToKeycode( display, XK_Shift_R );
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lCtrlCode = XKeysymToKeycode( display, XK_Control_L );
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rCtrlCode = XKeysymToKeycode( display, XK_Control_R );
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lAltCode = XKeysymToKeycode( display, XK_Alt_L );
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rAltCode = XKeysymToKeycode( display, XK_Alt_R );
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lMetaCode = XKeysymToKeycode( display, XK_Super_L );
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rMetaCode = XKeysymToKeycode( display, XK_Super_R );
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cCode = XKeysymToKeycode( display, XK_c );
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insertCode = XKeysymToKeycode( display, XK_Insert );
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kpInsertCode = XKeysymToKeycode( display, XK_KP_Insert );
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currentModifiers = 0;
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// This one will be used to read the recorded content
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dataDisplay = XOpenDisplay( 0 );
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if ( !dataDisplay )
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throw exInit();
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recordRange = XRecordAllocRange();
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if ( !recordRange ) {
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XCloseDisplay( dataDisplay );
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throw exInit();
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}
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recordRange->device_events.first = KeyPress;
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recordRange->device_events.last = KeyRelease;
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recordClientSpec = XRecordAllClients;
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recordContext = XRecordCreateContext( display, 0, &recordClientSpec, 1, &recordRange, 1 );
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if ( !recordContext ) {
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XFree( recordRange );
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XCloseDisplay( dataDisplay );
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throw exInit();
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}
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// This is required to ensure context was indeed created
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XSync( display, False );
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connect( this, &HotkeyWrapper::keyRecorded, this, &HotkeyWrapper::checkState, Qt::QueuedConnection );
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start();
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}
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void HotkeyWrapper::run() // Runs in a separate thread
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{
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if ( !XRecordEnableContext( dataDisplay, recordContext, recordEventCallback, (XPointer)this ) )
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qDebug( "Failed to enable record context" );
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}
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void HotkeyWrapper::recordEventCallback( XPointer ptr, XRecordInterceptData * data )
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{
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( (HotkeyWrapper *)ptr )->handleRecordEvent( data );
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}
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void HotkeyWrapper::handleRecordEvent( XRecordInterceptData * data )
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{
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if ( data->category == XRecordFromServer ) {
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xEvent * event = (xEvent *)data->data;
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if ( event->u.u.type == KeyPress ) {
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KeyCode key = event->u.u.detail;
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if ( key == lShiftCode || key == rShiftCode )
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currentModifiers |= ShiftMask;
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else if ( key == lCtrlCode || key == rCtrlCode )
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currentModifiers |= ControlMask;
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else if ( key == lAltCode || key == rAltCode )
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currentModifiers |= Mod1Mask;
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else if ( key == lMetaCode || key == rMetaCode )
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currentModifiers |= Mod4Mask;
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else {
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// Here we employ a kind of hack translating KP_Insert key
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// to just Insert. This allows reacting to both Insert keys.
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if ( key == kpInsertCode )
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key = insertCode;
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emit keyRecorded( key, currentModifiers );
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}
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}
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else if ( event->u.u.type == KeyRelease ) {
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KeyCode key = event->u.u.detail;
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if ( key == lShiftCode || key == rShiftCode )
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currentModifiers &= ~ShiftMask;
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else if ( key == lCtrlCode || key == rCtrlCode )
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currentModifiers &= ~ControlMask;
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else if ( key == lAltCode || key == rAltCode )
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currentModifiers &= ~Mod1Mask;
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else if ( key == lMetaCode || key == rMetaCode )
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currentModifiers &= ~Mod4Mask;
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}
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}
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XRecordFreeData( data );
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}
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bool HotkeyWrapper::setGlobalKey( QKeySequence const & seq, int handle )
|
||||
{
|
||||
Config::HotKey hk( seq );
|
||||
return setGlobalKey( hk.key1, hk.key2, hk.modifiers, handle );
|
||||
}
|
||||
|
||||
bool HotkeyWrapper::setGlobalKey( int key, int key2, Qt::KeyboardModifiers modifier, int handle )
|
||||
{
|
||||
if ( !key )
|
||||
return false; // We don't monitor empty combinations
|
||||
|
||||
int vk = nativeKey( key );
|
||||
int vk2 = key2 ? nativeKey( key2 ) : 0;
|
||||
|
||||
quint32 mod = 0;
|
||||
if ( modifier & Qt::ShiftModifier )
|
||||
mod |= ShiftMask;
|
||||
if ( modifier & Qt::ControlModifier )
|
||||
mod |= ControlMask;
|
||||
if ( modifier & Qt::AltModifier )
|
||||
mod |= Mod1Mask;
|
||||
if ( modifier & Qt::MetaModifier )
|
||||
mod |= Mod4Mask;
|
||||
|
||||
hotkeys.append( HotkeyStruct( vk, vk2, mod, handle, 0 ) );
|
||||
|
||||
if ( !isCopyToClipboardKey( vk, mod ) )
|
||||
grabKey( vk, mod ); // Make sure it doesn't get caught by other apps
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
bool HotkeyWrapper::isCopyToClipboardKey( quint32 keyCode, quint32 modifiers ) const
|
||||
{
|
||||
return modifiers == ControlMask && ( keyCode == cCode || keyCode == insertCode || keyCode == kpInsertCode );
|
||||
}
|
||||
|
||||
bool HotkeyWrapper::isKeyGrabbed( quint32 keyCode, quint32 modifiers ) const
|
||||
{
|
||||
GrabbedKeys::const_iterator i = grabbedKeys.find( std::make_pair( keyCode, modifiers ) );
|
||||
|
||||
return i != grabbedKeys.end();
|
||||
}
|
||||
|
||||
namespace {
|
||||
|
||||
using X11ErrorHandler = int ( * )( Display * display, XErrorEvent * event );
|
||||
|
||||
class X11GrabUngrabErrorHandler
|
||||
{
|
||||
public:
|
||||
static bool error;
|
||||
|
||||
static int grab_ungrab_error_handler( Display *, XErrorEvent * event )
|
||||
{
|
||||
qDebug() << "grab_ungrab_error_handler is invoked";
|
||||
switch ( event->error_code ) {
|
||||
case BadAccess:
|
||||
case BadValue:
|
||||
case BadWindow:
|
||||
if ( event->request_code == 33 /* X_GrabKey */ || event->request_code == 34 /* X_UngrabKey */ ) {
|
||||
error = true;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
X11GrabUngrabErrorHandler()
|
||||
{
|
||||
error = false;
|
||||
previousErrorHandler_ = XSetErrorHandler( grab_ungrab_error_handler );
|
||||
}
|
||||
|
||||
~X11GrabUngrabErrorHandler()
|
||||
{
|
||||
|
||||
QNativeInterface::QX11Application * x11AppInfo = qApp->nativeInterface< QNativeInterface::QX11Application >();
|
||||
|
||||
Display * displayID = x11AppInfo->display();
|
||||
|
||||
XFlush( displayID );
|
||||
(void)XSetErrorHandler( previousErrorHandler_ );
|
||||
}
|
||||
|
||||
bool isError() const
|
||||
{
|
||||
|
||||
QNativeInterface::QX11Application * x11AppInfo = qApp->nativeInterface< QNativeInterface::QX11Application >();
|
||||
|
||||
Display * displayID = x11AppInfo->display();
|
||||
|
||||
XFlush( displayID );
|
||||
return error;
|
||||
}
|
||||
|
||||
private:
|
||||
X11ErrorHandler previousErrorHandler_;
|
||||
};
|
||||
|
||||
bool X11GrabUngrabErrorHandler::error = false;
|
||||
|
||||
} // anonymous namespace
|
||||
|
||||
|
||||
HotkeyWrapper::GrabbedKeys::iterator HotkeyWrapper::grabKey( quint32 keyCode, quint32 modifiers )
|
||||
{
|
||||
std::pair< GrabbedKeys::iterator, bool > result = grabbedKeys.insert( std::make_pair( keyCode, modifiers ) );
|
||||
|
||||
|
||||
if ( result.second ) {
|
||||
|
||||
QNativeInterface::QX11Application * x11AppInfo = qApp->nativeInterface< QNativeInterface::QX11Application >();
|
||||
|
||||
Display * displayID = x11AppInfo->display();
|
||||
|
||||
X11GrabUngrabErrorHandler errorHandler;
|
||||
XGrabKey( displayID, keyCode, modifiers, DefaultRootWindow( displayID ), True, GrabModeAsync, GrabModeAsync );
|
||||
|
||||
if ( errorHandler.isError() ) {
|
||||
qWarning( "Possible hotkeys conflict. Check your hotkeys options." );
|
||||
ungrabKey( result.first );
|
||||
}
|
||||
}
|
||||
|
||||
return result.first;
|
||||
}
|
||||
|
||||
void HotkeyWrapper::ungrabKey( GrabbedKeys::iterator i )
|
||||
{
|
||||
|
||||
QNativeInterface::QX11Application * x11AppInfo = qApp->nativeInterface< QNativeInterface::QX11Application >();
|
||||
|
||||
Display * displayID = x11AppInfo->display();
|
||||
X11GrabUngrabErrorHandler errorHandler;
|
||||
XUngrabKey( displayID, i->first, i->second, XDefaultRootWindow( displayID ) );
|
||||
|
||||
grabbedKeys.erase( i );
|
||||
|
||||
if ( errorHandler.isError() ) {
|
||||
qWarning( "Cannot ungrab the hotkey" );
|
||||
}
|
||||
}
|
||||
|
||||
quint32 HotkeyWrapper::nativeKey( int key )
|
||||
{
|
||||
QString keySymName;
|
||||
|
||||
switch ( key ) {
|
||||
case Qt::Key_Insert:
|
||||
keySymName = "Insert";
|
||||
break;
|
||||
default:
|
||||
keySymName = QKeySequence( key ).toString();
|
||||
break;
|
||||
}
|
||||
|
||||
QNativeInterface::QX11Application * x11AppInfo = qApp->nativeInterface< QNativeInterface::QX11Application >();
|
||||
|
||||
Display * display = x11AppInfo->display();
|
||||
return XKeysymToKeycode( display, XStringToKeysym( keySymName.toLatin1().data() ) );
|
||||
}
|
||||
|
||||
void HotkeyWrapper::unregister()
|
||||
{
|
||||
QNativeInterface::QX11Application * x11AppInfo = qApp->nativeInterface< QNativeInterface::QX11Application >();
|
||||
Display * display = x11AppInfo->display();
|
||||
|
||||
XRecordDisableContext( display, recordContext );
|
||||
XSync( display, False );
|
||||
|
||||
wait();
|
||||
|
||||
XRecordFreeContext( display, recordContext );
|
||||
XFree( recordRange );
|
||||
XCloseDisplay( dataDisplay );
|
||||
|
||||
while ( grabbedKeys.size() )
|
||||
ungrabKey( grabbedKeys.begin() );
|
||||
|
||||
( static_cast< QHotkeyApplication * >( qApp ) )->unregisterWrapper( this );
|
||||
}
|
||||
|
||||
#endif
|
||||
Loading…
Reference in a new issue