[PATCH 2/3] ui/gtk: set the ui size to 0 when invisible

[dongwon.kim@intel.com]

From: Dongwon Kim <dongwon.kim@intel.com>

UI size is set to 0 when the VC is invisible, which will prevent
the further scanout update by notifying the guest that the display
is not in active state. Then it is restored to the original size
whenever the VC becomes visible again.

Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Vivek Kasireddy <vivek.kasireddy@intel.com>
Signed-off-by: Dongwon Kim <dongwon.kim@intel.com>
---
 ui/gtk.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/ui/gtk.c b/ui/gtk.c
index 02eb667d8a..651ed3492f 100644
--- a/ui/gtk.c
+++ b/ui/gtk.c
@@ -1314,10 +1314,12 @@ static void gd_menu_switch_vc(GtkMenuItem *item, void *opaque)
     GtkDisplayState *s = opaque;
     VirtualConsole *vc;
     GtkNotebook *nb = GTK_NOTEBOOK(s->notebook);
+    GdkWindow *window;
     gint page;
 
     vc = gd_vc_find_current(s);
     vc->gfx.visible = false;
+    gd_set_ui_size(vc, 0, 0);
 
     vc = gd_vc_find_by_menu(s);
     gtk_release_modifiers(s);
@@ -1325,6 +1327,9 @@ static void gd_menu_switch_vc(GtkMenuItem *item, void *opaque)
         page = gtk_notebook_page_num(nb, vc->tab_item);
         gtk_notebook_set_current_page(nb, page);
         gtk_widget_grab_focus(vc->focus);
+        window = gtk_widget_get_window(vc->gfx.drawing_area);
+        gd_set_ui_size(vc, gdk_window_get_width(window),
+                       gdk_window_get_height(window));
         vc->gfx.visible = true;
     }
 }
@@ -1356,6 +1361,7 @@ static gboolean gd_tab_window_close(GtkWidget *widget, GdkEvent *event,
     GtkDisplayState *s = vc->s;
 
     vc->gfx.visible = false;
+    gd_set_ui_size(vc, 0, 0);
     gtk_widget_set_sensitive(vc->menu_item, true);
     gd_widget_reparent(vc->window, s->notebook, vc->tab_item);
     gtk_notebook_set_tab_label_text(GTK_NOTEBOOK(s->notebook),
@@ -1391,6 +1397,7 @@ static gboolean gd_win_grab(void *opaque)
 static void gd_menu_untabify(GtkMenuItem *item, void *opaque)
 {
     GtkDisplayState *s = opaque;
+    GdkWindow *window;
     VirtualConsole *vc = gd_vc_find_current(s);
 
     if (vc->type == GD_VC_GFX &&
@@ -1429,6 +1436,10 @@ static void gd_menu_untabify(GtkMenuItem *item, void *opaque)
         gd_update_geometry_hints(vc);
         gd_update_caption(s);
     }
+
+    window = gtk_widget_get_window(vc->gfx.drawing_area);
+    gd_set_ui_size(vc, gdk_window_get_width(window),
+                   gdk_window_get_height(window));
     vc->gfx.visible = true;
 }
 
@@ -1753,7 +1764,9 @@ static gboolean gd_configure(GtkWidget *widget,
 {
     VirtualConsole *vc = opaque;
 
-    gd_set_ui_size(vc, cfg->width, cfg->height);
+    if (vc->gfx.visible) {
+        gd_set_ui_size(vc, cfg->width, cfg->height);
+    }
     return FALSE;
 }
 
-- 
2.34.1