Attachment 118712 Details for Bug 92316 – Simple reproducer with gtk+ alone

Simple reproducer with gtk+ alone

kill-weston.c (text/plain), 4.00 KB, created by Olivier Fourdan on 2015-10-06 12:39:20 UTC

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Filename:

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Creator: Olivier Fourdan

Created: 2015-10-06 12:39:20 UTC

Size: 4.00 KB

patch

obsolete

>/*
> * gcc -o kill-weston -g -O0 kill-weston.c `pkg-config --libs --cflags gtk+-3.0`
> */
>
>#include <gtk/gtk.h>
>
>static void
>destroy (GtkWidget *widget, 
>         gpointer data)
>{
>    gtk_main_quit ();
>}
>
>static gboolean
>popup_grab_on_window (GdkWindow *window,
>                      GdkDevice *keyboard,
>                      GdkDevice *pointer,
>                      guint32    activate_time)
>{
>    if (keyboard &&
>        gdk_device_grab (keyboard, window,
>                         GDK_OWNERSHIP_WINDOW, TRUE,
>                         GDK_KEY_PRESS_MASK |
>                         GDK_KEY_RELEASE_MASK,
>                         NULL, activate_time) != GDK_GRAB_SUCCESS)
>      {
>        return FALSE;
>      }
>
>    if (pointer &&
>        gdk_device_grab (pointer, window,
>                         GDK_OWNERSHIP_WINDOW, TRUE,
>                         GDK_SMOOTH_SCROLL_MASK |
>                         GDK_BUTTON_PRESS_MASK |
>                         GDK_BUTTON_RELEASE_MASK |
>                         GDK_ENTER_NOTIFY_MASK |
>                         GDK_LEAVE_NOTIFY_MASK |
>                         GDK_POINTER_MOTION_MASK,
>                         NULL, activate_time) != GDK_GRAB_SUCCESS)
>      {
>        if (keyboard)
>          gdk_device_ungrab (keyboard, activate_time);
>
>        return FALSE;
>      }
>
>    return TRUE;
>}
>
>static GdkDevice *
>grab_device (GtkWidget *widget)
>{
>    GdkDevice *keyboard, *pointer, *device;
>    GdkDisplay *display;
>
>    display = gtk_widget_get_display (widget);
>    device = gtk_get_current_event_device ();
>    if (device && gdk_device_get_display (device) != display)
>      device = NULL;
>
>    if (device == NULL)
>      {
>        GdkDeviceManager *device_manager;
>        GList *devices;
>
>        device_manager = gdk_display_get_device_manager (display);
>        devices = gdk_device_manager_list_devices (device_manager,
>                                                   GDK_DEVICE_TYPE_MASTER);
>
>        device = devices->data;
>        g_list_free (devices);
>      }
>
>    if (gdk_device_get_source (device) == GDK_SOURCE_KEYBOARD)
>      {
>        keyboard = device;
>        pointer = gdk_device_get_associated_device (device);
>      }
>    else
>      {
>        pointer = device;
>        keyboard = gdk_device_get_associated_device (device);
>      }
>
>    if (popup_grab_on_window (gtk_widget_get_window (widget),
>            keyboard, pointer, gtk_get_current_event_time ()))
>        return pointer;
>    else
>        g_warning ("Failed to grab device!");
>
>    return NULL;
>}
>
>static void
>ungrab_device (GdkDevice *pointer)
>{
>    GdkDevice *keyboard;
>
>    gdk_device_ungrab (pointer, GDK_CURRENT_TIME);
>    keyboard = gdk_device_get_associated_device (pointer);
>
>    if (keyboard)
>        gdk_device_ungrab (keyboard, GDK_CURRENT_TIME);
>}
>
>static void
>show_popup (GtkWidget *parent)
>{
>    GtkWidget *popup;
>    GdkDevice *pointer;
>
>    gtk_widget_realize (parent);
>    popup = gtk_window_new (GTK_WINDOW_POPUP);
>
>    gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (parent)),
>                                 GTK_WINDOW (popup));
>    gtk_window_set_transient_for (GTK_WINDOW (popup), GTK_WINDOW (parent));
>
>    gtk_widget_realize (popup);
>    gtk_window_set_type_hint (GTK_WINDOW (popup), GDK_WINDOW_TYPE_HINT_POPUP_MENU);
>    pointer = grab_device (GTK_WIDGET (popup));
>    if (pointer)
>      gtk_device_grab_add (GTK_WIDGET (popup), pointer, TRUE);
>
>    gtk_window_move (GTK_WINDOW (popup), 200, 200);
>    gtk_window_resize (GTK_WINDOW (popup), 25, 25);
>    gtk_widget_show (GTK_WIDGET (popup));
>
>    if (pointer)
>      {
>        ungrab_device (pointer);
>        gtk_device_grab_remove (GTK_WIDGET (popup), pointer);
>      }
>}
>
>int
>main (int   argc, 
>      char *argv[])
>{
>    GtkWidget *window;
>
>    gtk_init (&argc, &argv);
>
>    /* create a new window */
>    window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
>
>    gtk_window_resize (GTK_WINDOW (window), 200, 200);
>
>    g_signal_connect (window, "destroy", G_CALLBACK (destroy), NULL);
>    show_popup (window);
>    gtk_widget_show_all (GTK_WIDGET (window));
>
>    gtk_main ();
>
>    return 0;
>}

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Attachments on bug 92316: 118712

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