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demos: Update changedisplay demo to using GtkGesture

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This commit is contained in:
Carlos Garnacho 2018-06-28 20:32:10 +02:00
parent 25b3b90920
commit 8f6f980e49
1 changed files with 13 additions and 9 deletions
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22
demos/gtk-demo/changedisplay.c
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@ -87,14 +87,14 @@ find_toplevel_at_pointer (GdkDisplay *display)
return widget ? gtk_widget_get_toplevel (widget) : NULL;
}
static gboolean
release_event_cb (GtkWidget *widget,
GdkEvent *event,
gboolean *clicked)
static void
released_cb (GtkGestureMultiPress *gesture,
guint n_press,
gdouble x,
gdouble y,
gboolean *clicked)
{
if (gdk_event_get_event_type (event) == GDK_BUTTON_RELEASE)
*clicked = TRUE;
return TRUE;
*clicked = TRUE;
}
/* Asks the user to click on a window, then waits for them click
@ -132,10 +132,12 @@ query_for_toplevel (GdkDisplay *display,
GDK_SEAT_CAPABILITY_ALL_POINTING,
FALSE, cursor, NULL, NULL, NULL) == GDK_GRAB_SUCCESS)
{
GtkGesture *gesture = gtk_gesture_multi_press_new ();
gboolean clicked = FALSE;
g_signal_connect (popup, "event",
G_CALLBACK (release_event_cb), &clicked);
g_signal_connect (gesture, "released",
G_CALLBACK (released_cb), &clicked);
gtk_widget_add_controller (popup, GTK_EVENT_CONTROLLER (gesture));
/* Process events until clicked is set by our button release event handler.
* We pass in may_block=TRUE since we want to wait if there
@ -144,6 +146,8 @@ query_for_toplevel (GdkDisplay *display,
while (!clicked)
g_main_context_iteration (NULL, TRUE);
gdk_seat_ungrab (gdk_device_get_seat (device));
toplevel = find_toplevel_at_pointer (display);
if (toplevel == popup)
toplevel = NULL;