133 行
4.0 KiB
C++
133 行
4.0 KiB
C++
#if defined(Hiro_Application)
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namespace hiro {
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auto pApplication::exit() -> void {
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quit();
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::exit(EXIT_SUCCESS);
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}
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auto pApplication::modal() -> bool {
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return Application::state().modal > 0;
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}
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auto pApplication::run() -> void {
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if(Application::state().onMain) {
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while(!Application::state().quit) {
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Application::doMain();
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processEvents();
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}
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} else {
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QApplication::exec();
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}
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}
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auto pApplication::pendingEvents() -> bool {
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return QApplication::hasPendingEvents();
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}
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auto pApplication::processEvents() -> void {
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while(pendingEvents()) QApplication::processEvents();
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}
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auto pApplication::quit() -> void {
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QApplication::quit();
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qtApplication = nullptr; //note: deleting QApplication will crash libQtGui
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#if defined(DISPLAY_XORG)
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if(state().display) {
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if(state().screenSaverXDG && state().screenSaverWindow) {
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//this needs to run synchronously, so that XUnmapWindow() won't happen before xdg-screensaver is finished
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execute("xdg-screensaver", "resume", string{"0x", hex(state().screenSaverWindow)});
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XUnmapWindow(state().display, state().screenSaverWindow);
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state().screenSaverWindow = 0;
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}
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XCloseDisplay(state().display);
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state().display = nullptr;
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}
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#endif
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}
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auto pApplication::setScreenSaver(bool screenSaver) -> void {
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#if defined(DISPLAY_XORG)
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if(state().screenSaverXDG && state().screenSaverWindow) {
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//when invoking this command on Linux under Xfce, the follow message is written to the terminal:
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//"org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files"
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//to silence this message, stdout and stderr are redirected to /dev/null while invoking this command.
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auto fd = open("/dev/null", O_NONBLOCK);
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auto fo = dup(STDOUT_FILENO);
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auto fe = dup(STDERR_FILENO);
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dup2(fd, STDOUT_FILENO);
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dup2(fd, STDERR_FILENO);
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invoke("xdg-screensaver", screenSaver ? "resume" : "suspend", string{"0x", hex(state().screenSaverWindow)});
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dup2(fo, STDOUT_FILENO);
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dup2(fe, STDERR_FILENO);
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close(fd);
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close(fo);
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close(fe);
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}
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#endif
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}
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auto pApplication::state() -> State& {
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static State state;
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return state;
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}
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//this is sadly necessary for things like determining window frame geometry
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//obviously, it is used as sparingly as possible
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auto pApplication::synchronize() -> void {
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for(auto n : range(8)) {
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#if HIRO_QT==4 && defined(DISPLAY_XORG)
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QApplication::syncX();
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#elif HIRO_QT==5
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QApplication::sync();
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#endif
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Application::processEvents();
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usleep(2000);
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}
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}
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auto pApplication::initialize() -> void {
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#if HIRO_QT==5 && defined(PLATFORM_BSD)
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setenv("QTCOMPOSE", "/usr/local/lib/X11/locale/", 0);
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#endif
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#if defined(DISPLAY_XORG)
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XInitThreads();
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state().display = XOpenDisplay(nullptr);
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state().screenSaverXDG = (bool)execute("xdg-screensaver", "--version").output.find("xdg-screensaver");
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if(state().screenSaverXDG) {
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auto screen = DefaultScreen(state().display);
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auto rootWindow = RootWindow(state().display, screen);
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XSetWindowAttributes attributes{};
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attributes.background_pixel = BlackPixel(state().display, screen);
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attributes.border_pixel = 0;
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attributes.override_redirect = true;
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state().screenSaverWindow = XCreateWindow(state().display, rootWindow,
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0, 0, 1, 1, 0, DefaultDepth(state().display, screen),
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InputOutput, DefaultVisual(state().display, screen),
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CWBackPixel | CWBorderPixel | CWOverrideRedirect, &attributes
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);
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XStoreName(state().display, state().screenSaverWindow, "hiro-screen-saver-window");
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XFlush(state().display);
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}
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#endif
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static auto name = Application::state().name ? Application::state().name : string{"hiro"};
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//QApplication stores references to argc;
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//and will access them after pApplication::initialize() returns
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static int argc = 1;
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static char* argv[] = {name.get(), nullptr};
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static char** argvp = argv;
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qtApplication = new QApplication(argc, argvp);
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pKeyboard::initialize();
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}
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}
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#endif
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