[gtk/matthiasc/surface-state-rework: 8/80] wayland: Keep pending initial state separate




commit a995e13b4a76e92feb5418357b6629d481d01601
Author: Jonas Ã…dahl <jadahl gmail com>
Date:   Mon Nov 23 16:46:29 2020 +0100

    wayland: Keep pending initial state separate
    
    Queue it, and then wait for it to actually take effect, i.e. be
    confirmed via a configure event from the compositor, before setting the
    actual GdkSurface::state value.

 gdk/wayland/gdksurface-wayland.c | 41 +++++++++++++++++++++++++++++-----------
 1 file changed, 30 insertions(+), 11 deletions(-)
---
diff --git a/gdk/wayland/gdksurface-wayland.c b/gdk/wayland/gdksurface-wayland.c
index 27eb433a58..39e815a219 100644
--- a/gdk/wayland/gdksurface-wayland.c
+++ b/gdk/wayland/gdksurface-wayland.c
@@ -179,6 +179,11 @@ struct _GdkWaylandSurface
     gboolean is_dirty;
   } pending;
 
+  struct {
+    GdkToplevelState unset_flags;
+    GdkToplevelState set_flags;
+  } initial_state;
+
   uint32_t last_configure_serial;
 
   int state_freeze_count;
@@ -1307,6 +1312,20 @@ configure_surface_geometry (GdkSurface *surface)
   gdk_wayland_surface_resize (surface, width, height, impl->scale);
 }
 
+static void
+synthesize_initial_surface_state (GdkSurface       *surface,
+                                  GdkToplevelState  unset_flags,
+                                  GdkToplevelState  set_flags)
+{
+  GdkWaylandSurface *impl = GDK_WAYLAND_SURFACE (surface);
+
+  impl->initial_state.unset_flags |= unset_flags;
+  impl->initial_state.set_flags &= ~unset_flags;
+
+  impl->initial_state.set_flags |= set_flags;
+  impl->initial_state.unset_flags &= ~set_flags;
+}
+
 static void
 gdk_wayland_surface_configure_toplevel (GdkSurface *surface)
 {
@@ -1786,20 +1805,20 @@ gdk_wayland_surface_create_xdg_toplevel (GdkSurface *surface)
   switch (display_wayland->shell_variant)
     {
     case GDK_WAYLAND_SHELL_VARIANT_XDG_SHELL:
-      if (surface->state & GDK_TOPLEVEL_STATE_MAXIMIZED)
+      if (impl->initial_state.set_flags & GDK_TOPLEVEL_STATE_MAXIMIZED)
         xdg_toplevel_set_maximized (impl->display_server.xdg_toplevel);
-      if (surface->state & GDK_TOPLEVEL_STATE_MINIMIZED)
+      if (impl->initial_state.set_flags & GDK_TOPLEVEL_STATE_MINIMIZED)
         xdg_toplevel_set_minimized (impl->display_server.xdg_toplevel);
-      if (surface->state & GDK_TOPLEVEL_STATE_FULLSCREEN)
+      if (impl->initial_state.set_flags & GDK_TOPLEVEL_STATE_FULLSCREEN)
         xdg_toplevel_set_fullscreen (impl->display_server.xdg_toplevel,
                                      impl->initial_fullscreen_output);
       break;
     case GDK_WAYLAND_SHELL_VARIANT_ZXDG_SHELL_V6:
-      if (surface->state & GDK_TOPLEVEL_STATE_MAXIMIZED)
+      if (impl->initial_state.set_flags & GDK_TOPLEVEL_STATE_MAXIMIZED)
         zxdg_toplevel_v6_set_maximized (impl->display_server.zxdg_toplevel_v6);
-      if (surface->state & GDK_TOPLEVEL_STATE_MINIMIZED)
+      if (impl->initial_state.set_flags & GDK_TOPLEVEL_STATE_MINIMIZED)
         zxdg_toplevel_v6_set_minimized (impl->display_server.zxdg_toplevel_v6);
-      if (surface->state & GDK_TOPLEVEL_STATE_FULLSCREEN)
+      if (impl->initial_state.set_flags & GDK_TOPLEVEL_STATE_FULLSCREEN)
         zxdg_toplevel_v6_set_fullscreen (impl->display_server.zxdg_toplevel_v6,
                                          impl->initial_fullscreen_output);
       break;
@@ -3628,7 +3647,7 @@ gdk_wayland_surface_maximize (GdkSurface *surface)
     }
   else
     {
-      gdk_synthesize_surface_state (surface, 0, GDK_TOPLEVEL_STATE_MAXIMIZED);
+      synthesize_initial_surface_state (surface, 0, GDK_TOPLEVEL_STATE_MAXIMIZED);
     }
 }
 
@@ -3659,7 +3678,7 @@ gdk_wayland_surface_unmaximize (GdkSurface *surface)
     }
   else
     {
-      gdk_synthesize_surface_state (surface, GDK_TOPLEVEL_STATE_MAXIMIZED, 0);
+      synthesize_initial_surface_state (surface, GDK_TOPLEVEL_STATE_MAXIMIZED, 0);
     }
 }
 
@@ -3696,7 +3715,7 @@ gdk_wayland_surface_fullscreen_on_monitor (GdkSurface *surface,
     }
   else
     {
-      gdk_synthesize_surface_state (surface, 0, GDK_TOPLEVEL_STATE_FULLSCREEN);
+      synthesize_initial_surface_state (surface, 0, GDK_TOPLEVEL_STATE_FULLSCREEN);
       impl->initial_fullscreen_output = output;
     }
 }
@@ -3734,7 +3753,7 @@ gdk_wayland_surface_fullscreen (GdkSurface *surface)
     }
   else
     {
-      gdk_synthesize_surface_state (surface, 0, GDK_TOPLEVEL_STATE_FULLSCREEN);
+      synthesize_initial_surface_state (surface, 0, GDK_TOPLEVEL_STATE_FULLSCREEN);
     }
 }
 
@@ -3767,7 +3786,7 @@ gdk_wayland_surface_unfullscreen (GdkSurface *surface)
     }
   else
     {
-      gdk_synthesize_surface_state (surface, GDK_TOPLEVEL_STATE_FULLSCREEN, 0);
+      synthesize_initial_surface_state (surface, GDK_TOPLEVEL_STATE_FULLSCREEN, 0);
     }
 }
 


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