ui: Add meta_ui_update_frame_style()

This method allows forcing a style update of a particular frame
from the core, so that it can pick up style variants.

https://bugzilla.gnome.org/show_bug.cgi?id=645355

upstream commit:
https://gitlab.gnome.org/GNOME/metacity/commit/97554dc4

4 files changed, 25 insertions, 0 deletions

diff --git a/src/include/ui.h b/src/include/ui.h
index bbfaf287..652e8cfc 100644
--- a/src/include/ui.h
+++ b/src/include/ui.h
@@ -104,6 +104,8 @@ void meta_ui_set_frame_title (MetaUI *ui,
                               Window xwindow,
                               const char *title);
 
+void meta_ui_update_frame_style (MetaUI *ui,
+                                 Window  window);
 void meta_ui_repaint_frame (MetaUI *ui,
                             Window xwindow);
 
diff --git a/src/ui/frames.c b/src/ui/frames.c
index 1adb3ccf..9f1ee8cb 100644
--- a/src/ui/frames.c
+++ b/src/ui/frames.c
@@ -1030,6 +1030,20 @@ meta_frames_set_title (MetaFrames *frames,
 }
 
 void
+meta_frames_update_frame_style (MetaFrames *frames,
+                                Window      xwindow)
+{
+  MetaUIFrame *frame;
+
+  frame = meta_frames_lookup_window (frames, xwindow);
+
+  g_assert (frame);
+
+  meta_frames_attach_style (frames, frame);
+  invalidate_whole_window (frames, frame);
+}
+
+void
 meta_frames_repaint_frame (MetaFrames *frames,
                            Window      xwindow)
 {
diff --git a/src/ui/frames.h b/src/ui/frames.h
index 1262f148..6689cc1a 100644
--- a/src/ui/frames.h
+++ b/src/ui/frames.h
@@ -124,6 +124,8 @@ void meta_frames_set_title (MetaFrames *frames,
                             Window      xwindow,
                             const char *title);
 
+void meta_frames_update_frame_style (MetaFrames *frames,
+                                     Window      xwindow);
 void meta_frames_repaint_frame (MetaFrames *frames,
                                 Window      xwindow);
 
diff --git a/src/ui/ui.c b/src/ui/ui.c
index cc26451e..bd753210 100644
--- a/src/ui/ui.c
+++ b/src/ui/ui.c
@@ -427,6 +427,13 @@ meta_ui_unmap_frame (MetaUI *ui,
 }
 
 void
+meta_ui_update_frame_style (MetaUI *ui,
+                            Window  xwindow)
+{
+  meta_frames_update_frame_style (ui->frames, xwindow);
+}
+
+void
 meta_ui_repaint_frame (MetaUI *ui,
                        Window xwindow)
 {