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authorAlexei Sorokin <[email protected]>2017-03-28 16:18:00 +0300
committerAlexei Sorokin <[email protected]>2017-03-28 16:18:00 +0300
commita7b8a687fa461b752b944bcdfda5a73a61088d12 (patch)
treee0b7356916e31458d3d273ca21745b04b6eb19fa /src/gs-grab-x11.c
parent5c52f7867c7e46897b6c4966cade4975042f383e (diff)
downloadmate-screensaver-a7b8a687fa461b752b944bcdfda5a73a61088d12.tar.bz2
mate-screensaver-a7b8a687fa461b752b944bcdfda5a73a61088d12.tar.xz
[GTK+3.20] Switch to GdkSeat
This changes the code quite a lot as both grabbing the pointer and the keyboard have to be done simultaneously now.
Diffstat (limited to 'src/gs-grab-x11.c')
-rw-r--r--src/gs-grab-x11.c453
1 files changed, 177 insertions, 276 deletions
diff --git a/src/gs-grab-x11.c b/src/gs-grab-x11.c
index c2fba38..d174716 100644
--- a/src/gs-grab-x11.c
+++ b/src/gs-grab-x11.c
@@ -39,7 +39,7 @@
static void gs_grab_class_init (GSGrabClass *klass);
static void gs_grab_init (GSGrab *grab);
-static void gs_grab_finalize (GObject *object);
+static void gs_grab_finalize (GObject *object);
#define GS_GRAB_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GS_TYPE_GRAB, GSGrabPrivate))
@@ -49,11 +49,10 @@ static gpointer grab_object = NULL;
struct GSGrabPrivate
{
- guint mouse_hide_cursor : 1;
- GdkWindow *mouse_grab_window;
- GdkWindow *keyboard_grab_window;
- GdkDisplay *mouse_grab_display;
- GdkDisplay *keyboard_grab_display;
+ GdkWindow *grab_window;
+ GdkDisplay *grab_display;
+ guint no_pointer_grab : 1;
+ guint hide_cursor : 1;
GtkWidget *invisible;
};
@@ -153,74 +152,105 @@ xorg_lock_smasher_set_active (GSGrab *grab,
}
#endif /* HAVE_XF86MISCSETGRABKEYSSTATE */
+#if GTK_CHECK_VERSION (3, 20, 0)
+static void
+prepare_window_grab_cb (GdkSeat *seat,
+ GdkWindow *window,
+ gpointer user_data)
+{
+ gdk_window_show_unraised (window);
+}
+#endif
+
static int
-gs_grab_get_keyboard (GSGrab *grab,
- GdkWindow *window,
- GdkDisplay *display)
+gs_grab_get (GSGrab *grab,
+ GdkWindow *window,
+ GdkDisplay *display,
+ gboolean no_pointer_grab,
+ gboolean hide_cursor)
{
GdkGrabStatus status;
+#if GTK_CHECK_VERSION (3, 20, 0)
+ GdkSeat *seat;
+ GdkSeatCapabilities caps;
+#endif
+ GdkCursor *cursor;
g_return_val_if_fail (window != NULL, FALSE);
g_return_val_if_fail (display != NULL, FALSE);
- gs_debug ("Grabbing keyboard widget=%X", (guint32) GDK_WINDOW_XID (window));
+ cursor = gdk_cursor_new_for_display (display, GDK_BLANK_CURSOR);
+
+ gs_debug ("Grabbing devices for window=%X", (guint32) GDK_WINDOW_XID (window));
+
+#if GTK_CHECK_VERSION (3, 20, 0)
+ seat = gdk_display_get_default_seat (display);
+ if (!no_pointer_grab)
+ caps = GDK_SEAT_CAPABILITY_ALL;
+ else
+ caps = GDK_SEAT_CAPABILITY_KEYBOARD;
+
+ status = gdk_seat_grab (seat, window,
+ caps, TRUE,
+ (hide_cursor ? cursor : NULL),
+ NULL,
+ prepare_window_grab_cb,
+ NULL);
+
+ /* make it release grabbed pointer if requested and if any;
+ time between grabbing and ungrabbing is minimal as grab was already
+ completed once */
+ if (status == GDK_GRAB_SUCCESS && no_pointer_grab &&
+ gdk_display_device_is_grabbed (display, gdk_seat_get_pointer (seat)))
+ {
+ gs_grab_release (grab, FALSE);
+ gs_debug ("Regrabbing keyboard");
+ status = gdk_seat_grab (seat, window,
+ caps, TRUE,
+ (hide_cursor ? cursor : NULL),
+ NULL, NULL, NULL);
+ }
+#else
status = gdk_keyboard_grab (window, FALSE, GDK_CURRENT_TIME);
- if (status == GDK_GRAB_SUCCESS)
+ if (status == GDK_GRAB_SUCCESS && !no_pointer_grab)
{
- if (grab->priv->keyboard_grab_window != NULL)
- {
- g_object_remove_weak_pointer (G_OBJECT (grab->priv->keyboard_grab_window),
- (gpointer *) &grab->priv->keyboard_grab_window);
- }
- grab->priv->keyboard_grab_window = window;
+ GdkGrabStatus pstatus;
- g_object_add_weak_pointer (G_OBJECT (grab->priv->keyboard_grab_window),
- (gpointer *) &grab->priv->keyboard_grab_window);
+ pstatus = gdk_pointer_grab (window, TRUE, 0, NULL,
+ (hide_cursor ? cursor : NULL),
+ GDK_CURRENT_TIME);
- grab->priv->keyboard_grab_display = display;
+ if (pstatus != GDK_GRAB_SUCCESS)
+ {
+ gdk_keyboard_ungrab (GDK_CURRENT_TIME);
+ if (status == GDK_GRAB_SUCCESS)
+ {
+ status = pstatus;
+ }
+ }
}
else
{
- gs_debug ("Couldn't grab keyboard! (%s)", grab_string (status));
+ gdk_pointer_ungrab (GDK_CURRENT_TIME);
}
-
- return status;
-}
-
-static int
-gs_grab_get_mouse (GSGrab *grab,
- GdkWindow *window,
- GdkDisplay *display,
- gboolean hide_cursor)
-{
- GdkGrabStatus status;
- GdkCursor *cursor;
-
- g_return_val_if_fail (window != NULL, FALSE);
- g_return_val_if_fail (display != NULL, FALSE);
-
- cursor = gdk_cursor_new_for_display (display, GDK_BLANK_CURSOR);
-
- gs_debug ("Grabbing mouse widget=%X", (guint32) GDK_WINDOW_XID (window));
- status = gdk_pointer_grab (window, TRUE, 0, NULL,
- (hide_cursor ? cursor : NULL),
- GDK_CURRENT_TIME);
+#endif
if (status == GDK_GRAB_SUCCESS)
{
- if (grab->priv->mouse_grab_window != NULL)
+ if (grab->priv->grab_window != NULL)
{
- g_object_remove_weak_pointer (G_OBJECT (grab->priv->mouse_grab_window),
- (gpointer *) &grab->priv->mouse_grab_window);
+ g_object_remove_weak_pointer (G_OBJECT (grab->priv->grab_window),
+ (gpointer *) &grab->priv->grab_window);
}
- grab->priv->mouse_grab_window = window;
+ grab->priv->grab_window = window;
- g_object_add_weak_pointer (G_OBJECT (grab->priv->mouse_grab_window),
- (gpointer *) &grab->priv->mouse_grab_window);
+ g_object_add_weak_pointer (G_OBJECT (grab->priv->grab_window),
+ (gpointer *) &grab->priv->grab_window);
- grab->priv->mouse_grab_display = display;
- grab->priv->mouse_hide_cursor = hide_cursor;
+ grab->priv->grab_display = display;
+ grab->priv->no_pointer_grab = no_pointer_grab;
+ grab->priv->hide_cursor = hide_cursor;
}
g_object_unref (G_OBJECT (cursor));
@@ -229,192 +259,128 @@ gs_grab_get_mouse (GSGrab *grab,
}
void
-gs_grab_keyboard_reset (GSGrab *grab)
+gs_grab_reset (GSGrab *grab)
{
- if (grab->priv->keyboard_grab_window != NULL)
+ if (grab->priv->grab_window != NULL)
{
- g_object_remove_weak_pointer (G_OBJECT (grab->priv->keyboard_grab_window),
- (gpointer *) &grab->priv->keyboard_grab_window);
+ g_object_remove_weak_pointer (G_OBJECT (grab->priv->grab_window),
+ (gpointer *) &grab->priv->grab_window);
}
- grab->priv->keyboard_grab_window = NULL;
- grab->priv->keyboard_grab_display = NULL;
-}
-
-static gboolean
-gs_grab_release_keyboard (GSGrab *grab)
-{
- gs_debug ("Ungrabbing keyboard");
- gdk_keyboard_ungrab (GDK_CURRENT_TIME);
-
- gs_grab_keyboard_reset (grab);
-
- return TRUE;
+ grab->priv->grab_window = NULL;
+ grab->priv->grab_display = NULL;
}
void
-gs_grab_mouse_reset (GSGrab *grab)
-{
- if (grab->priv->mouse_grab_window != NULL)
- {
- g_object_remove_weak_pointer (G_OBJECT (grab->priv->mouse_grab_window),
- (gpointer *) &grab->priv->mouse_grab_window);
- }
-
- grab->priv->mouse_grab_window = NULL;
- grab->priv->mouse_grab_display = NULL;
-}
-
-gboolean
-gs_grab_release_mouse (GSGrab *grab)
+gs_grab_release (GSGrab *grab, gboolean flush)
{
- gs_debug ("Ungrabbing pointer");
- gdk_pointer_ungrab (GDK_CURRENT_TIME);
-
- gs_grab_mouse_reset (grab);
-
- return TRUE;
-}
-
-static gboolean
-gs_grab_move_mouse (GSGrab *grab,
- GdkWindow *window,
- GdkDisplay *display,
- gboolean hide_cursor)
-{
- gboolean result;
- GdkWindow *old_window;
- GdkDisplay *old_display;
- gboolean old_hide_cursor;
-
+#if GTK_CHECK_VERSION (3, 20, 0)
+ GdkDisplay *display;
+ GdkSeat *seat;
- /* if the pointer is not grabbed and we have a
- mouse_grab_window defined then we lost the grab */
- if (!gdk_pointer_is_grabbed ())
- {
- gs_grab_mouse_reset (grab);
- }
+ display = gdk_display_get_default ();
+ seat = gdk_display_get_default_seat (display);
- if (grab->priv->mouse_grab_window == window)
- {
- gs_debug ("Window %X is already grabbed, skipping",
- (guint32) GDK_WINDOW_XID (grab->priv->mouse_grab_window));
- return TRUE;
- }
+#endif
+ gs_debug ("Ungrabbing devices");
-#if 0
- gs_debug ("Intentionally skipping move pointer grabs");
- /* FIXME: GTK+ doesn't like having the pointer grabbed */
- return TRUE;
+#if GTK_CHECK_VERSION (3, 20, 0)
+ gdk_seat_ungrab (seat);
#else
- if (grab->priv->mouse_grab_window)
+ if (gdk_pointer_is_grabbed ())
{
- gs_debug ("Moving pointer grab from %X to %X",
- (guint32) GDK_WINDOW_XID (grab->priv->mouse_grab_window),
- (guint32) GDK_WINDOW_XID (window));
- }
- else
- {
- gs_debug ("Getting pointer grab on %X",
- (guint32) GDK_WINDOW_XID (window));
+ gdk_pointer_ungrab (GDK_CURRENT_TIME);
}
+ gdk_keyboard_ungrab (GDK_CURRENT_TIME);
#endif
- gs_debug ("*** doing X server grab");
- gdk_x11_grab_server ();
-
- old_window = grab->priv->mouse_grab_window;
- old_display = grab->priv->mouse_grab_display;
- old_hide_cursor = grab->priv->mouse_hide_cursor;
-
- if (old_window)
- {
- gs_grab_release_mouse (grab);
- }
-
- result = gs_grab_get_mouse (grab, window, display, hide_cursor);
+ gs_grab_reset (grab);
- if (result != GDK_GRAB_SUCCESS)
+ /* FIXME: decide when this is good and when not */
+ if (flush)
{
- sleep (1);
- result = gs_grab_get_mouse (grab, window, display, hide_cursor);
- }
+ /* FIXME: is it right to enable this? */
+ xorg_lock_smasher_set_active (grab, TRUE);
- if ((result != GDK_GRAB_SUCCESS) && old_window)
- {
- gs_debug ("Could not grab mouse for new window. Resuming previous grab.");
- gs_grab_get_mouse (grab, old_window, old_display, old_hide_cursor);
+ gdk_display_sync (gdk_display_get_default ());
+ gdk_flush ();
}
-
- gs_debug ("*** releasing X server grab");
- gdk_x11_ungrab_server ();
- gdk_flush ();
-
- return (result == GDK_GRAB_SUCCESS);
}
static gboolean
-gs_grab_move_keyboard (GSGrab *grab,
- GdkWindow *window,
- GdkDisplay *display)
+gs_grab_move (GSGrab *grab,
+ GdkWindow *window,
+ GdkDisplay *display,
+ gboolean no_pointer_grab,
+ gboolean hide_cursor)
{
- gboolean result;
+ int result;
GdkWindow *old_window;
GdkDisplay *old_display;
+ gboolean old_hide_cursor;
- if (grab->priv->keyboard_grab_window == window)
+ if (grab->priv->grab_window == window &&
+ grab->priv->no_pointer_grab == no_pointer_grab)
{
gs_debug ("Window %X is already grabbed, skipping",
- (guint32) GDK_WINDOW_XID (grab->priv->keyboard_grab_window));
+ (guint32) GDK_WINDOW_XID (grab->priv->grab_window));
return TRUE;
}
- if (grab->priv->keyboard_grab_window != NULL)
+ if (grab->priv->grab_window != NULL)
{
- gs_debug ("Moving keyboard grab from %X to %X",
- (guint32) GDK_WINDOW_XID (grab->priv->keyboard_grab_window),
+ gs_debug ("Moving devices grab from %X to %X",
+ (guint32) GDK_WINDOW_XID (grab->priv->grab_window),
(guint32) GDK_WINDOW_XID (window));
}
else
{
- gs_debug ("Getting keyboard grab on %X",
+ gs_debug ("Getting devices grab on %X",
(guint32) GDK_WINDOW_XID (window));
}
gs_debug ("*** doing X server grab");
- gdk_x11_grab_server ();
+ gdk_x11_display_grab (display);
- old_window = grab->priv->keyboard_grab_window;
- old_display = grab->priv->keyboard_grab_display;
+ old_window = grab->priv->grab_window;
+ old_display = grab->priv->grab_display;
+ old_hide_cursor = grab->priv->hide_cursor;
if (old_window)
{
- gs_grab_release_keyboard (grab);
+ gs_grab_release (grab, FALSE);
}
- result = gs_grab_get_keyboard (grab, window, display);
+ result = gs_grab_get (grab, window, display,
+ no_pointer_grab, hide_cursor);
if (result != GDK_GRAB_SUCCESS)
{
- sleep (1);
- result = gs_grab_get_keyboard (grab, window, display);
+ g_usleep (G_USEC_PER_SEC);
+ result = gs_grab_get (grab, window, display,
+ no_pointer_grab, hide_cursor);
}
if ((result != GDK_GRAB_SUCCESS) && old_window)
{
- gs_debug ("Could not grab keyboard for new window. Resuming previous grab.");
- gs_grab_get_keyboard (grab, old_window, old_display);
+ int old_result;
+
+ gs_debug ("Could not grab devices for new window. Resuming previous grab.");
+ old_result = gs_grab_get (grab, old_window, old_display,
+ no_pointer_grab, old_hide_cursor);
+ if (old_result != GDK_GRAB_SUCCESS)
+ gs_debug ("Could not grab devices for old window");
}
gs_debug ("*** releasing X server grab");
- gdk_x11_ungrab_server ();
- gdk_flush ();
+ gdk_x11_display_ungrab (display);
+ gdk_display_flush (display);
return (result == GDK_GRAB_SUCCESS);
}
static void
-gs_grab_nuke_focus (void)
+gs_grab_nuke_focus (GdkDisplay *display)
{
Window focus = 0;
int rev = 0;
@@ -423,121 +389,59 @@ gs_grab_nuke_focus (void)
gdk_error_trap_push ();
- XGetInputFocus (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), &focus, &rev);
- XSetInputFocus (GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()), None, RevertToNone, CurrentTime);
+ XGetInputFocus (GDK_DISPLAY_XDISPLAY (display), &focus, &rev);
+ XSetInputFocus (GDK_DISPLAY_XDISPLAY (display), None,
+ RevertToNone, CurrentTime);
gdk_error_trap_pop_ignored ();
}
-void
-gs_grab_release (GSGrab *grab)
-{
- gs_debug ("Releasing all grabs");
-
- gs_grab_release_mouse (grab);
- gs_grab_release_keyboard (grab);
-
- /* FIXME: is it right to enable this ? */
- xorg_lock_smasher_set_active (grab, TRUE);
-
- gdk_display_sync (gdk_display_get_default ());
- gdk_flush ();
-}
-
gboolean
gs_grab_grab_window (GSGrab *grab,
GdkWindow *window,
GdkDisplay *display,
+ gboolean no_pointer_grab,
gboolean hide_cursor)
{
- gboolean mstatus = FALSE;
- gboolean kstatus = FALSE;
+ gboolean status = FALSE;
int i;
- int retries = 4;
- gboolean focus_fuckus = FALSE;
-
-AGAIN:
+ int retries = 12;
for (i = 0; i < retries; i++)
{
- kstatus = gs_grab_get_keyboard (grab, window, display);
- if (kstatus == GDK_GRAB_SUCCESS)
+ status = gs_grab_get (grab, window, display,
+ no_pointer_grab, hide_cursor);
+ if (status == GDK_GRAB_SUCCESS)
{
break;
}
-
- /* else, wait a second and try to grab again. */
- sleep (1);
- }
-
- if (kstatus != GDK_GRAB_SUCCESS)
- {
- if (!focus_fuckus)
+ else if (i == (int) (retries / 2))
{
- focus_fuckus = TRUE;
- gs_grab_nuke_focus ();
- goto AGAIN;
- }
- }
-
- for (i = 0; i < retries; i++)
- {
- mstatus = gs_grab_get_mouse (grab, window, display, hide_cursor);
- if (mstatus == GDK_GRAB_SUCCESS)
- {
- break;
+ /* try nuking focus in the middle */
+ gs_grab_nuke_focus (display);
}
- /* else, wait a second and try to grab again. */
- sleep (1);
+ /* else, wait a second and try to grab again */
+ g_usleep (G_USEC_PER_SEC);
}
- if (mstatus != GDK_GRAB_SUCCESS)
+ if (status != GDK_GRAB_SUCCESS)
{
- gs_debug ("Couldn't grab pointer! (%s)",
- grab_string (mstatus));
- }
-
-#if 0
- /* FIXME: release the pointer grab so GTK+ will work */
- gs_grab_release_mouse (grab);
-#endif
-
- /* When should we allow blanking to proceed? The current theory
- is that both a keyboard grab and a mouse grab are mandatory
-
- - If we don't have a keyboard grab, then we won't be able to
- read a password to unlock, so the kbd grab is manditory.
-
- - If we don't have a mouse grab, then we might not see mouse
- clicks as a signal to unblank, on-screen widgets won't work ideally,
- and gs_grab_move_to_window() will spin forever when it gets called.
- */
-
- if (kstatus != GDK_GRAB_SUCCESS || mstatus != GDK_GRAB_SUCCESS)
- {
- /* Do not blank without a keyboard and mouse grabs. */
-
- /* Release keyboard or mouse which was grabbed. */
- if (kstatus == GDK_GRAB_SUCCESS)
- {
- gs_grab_release_keyboard (grab);
- }
- if (mstatus == GDK_GRAB_SUCCESS)
- {
- gs_grab_release_mouse (grab);
- }
+ gs_debug ("Couldn't grab devices! (%s)",
+ grab_string (status));
+ /* do not blank without a devices grab */
return FALSE;
}
- /* Grab is good, go ahead and blank. */
+ /* grab is good, go ahead and blank */
return TRUE;
}
-/* this is used to grab the keyboard and mouse to the root */
+/* this is used to grab devices to the root */
gboolean
gs_grab_grab_root (GSGrab *grab,
+ gboolean no_pointer_grab,
gboolean hide_cursor)
{
GdkDisplay *display;
@@ -557,37 +461,40 @@ gs_grab_grab_root (GSGrab *grab,
gdk_device_get_position (device, &screen, NULL, NULL);
root = gdk_screen_get_root_window (screen);
- res = gs_grab_grab_window (grab, root, display, hide_cursor);
+ res = gs_grab_grab_window (grab, root, display,
+ no_pointer_grab, hide_cursor);
return res;
}
-/* this is used to grab the keyboard and mouse to an offscreen window */
+/* this is used to grab devices to an offscreen window */
gboolean
gs_grab_grab_offscreen (GSGrab *grab,
+ gboolean no_pointer_grab,
gboolean hide_cursor)
{
+ GdkWindow *window;
GdkDisplay *display;
GdkScreen *screen;
gboolean res;
gs_debug ("Grabbing an offscreen window");
+ window = gtk_widget_get_window (GTK_WIDGET (grab->priv->invisible));
screen = gtk_invisible_get_screen (GTK_INVISIBLE (grab->priv->invisible));
display = gdk_screen_get_display (screen);
- res = gs_grab_grab_window (grab,
- gtk_widget_get_window (GTK_WIDGET (grab->priv->invisible)),
- display,
- hide_cursor);
+ res = gs_grab_grab_window (grab, window, display,
+ no_pointer_grab, hide_cursor);
return res;
}
-/* This is similar to gs_grab_grab_window but doesn't fail */
+/* this is similar to gs_grab_grab_window but doesn't fail */
void
gs_grab_move_to_window (GSGrab *grab,
GdkWindow *window,
GdkDisplay *display,
+ gboolean no_pointer_grab,
gboolean hide_cursor)
{
gboolean result = FALSE;
@@ -596,19 +503,12 @@ gs_grab_move_to_window (GSGrab *grab,
xorg_lock_smasher_set_active (grab, FALSE);
- do
- {
- result = gs_grab_move_keyboard (grab, window, display);
- gdk_flush ();
- }
- while (!result);
-
- do
+ while (!result)
{
- result = gs_grab_move_mouse (grab, window, display, hide_cursor);
+ result = gs_grab_move (grab, window, display,
+ no_pointer_grab, hide_cursor);
gdk_flush ();
}
- while (!result);
}
static void
@@ -626,7 +526,8 @@ gs_grab_init (GSGrab *grab)
{
grab->priv = GS_GRAB_GET_PRIVATE (grab);
- grab->priv->mouse_hide_cursor = FALSE;
+ grab->priv->no_pointer_grab = FALSE;
+ grab->priv->hide_cursor = FALSE;
grab->priv->invisible = gtk_invisible_new ();
gtk_widget_show (grab->priv->invisible);
}