Example #1
0
static void
wl_shell_surface_role_commit (MetaWaylandSurfaceRole  *surface_role,
                              MetaWaylandPendingState *pending)
{
  MetaWaylandWlShellSurface *wl_shell_surface =
    META_WAYLAND_WL_SHELL_SURFACE (surface_role);
  MetaWaylandSurfaceRoleClass *surface_role_class;
  MetaWaylandSurface *surface =
    meta_wayland_surface_role_get_surface (surface_role);
  MetaWindow *window = surface->window;
  MetaRectangle geom = { 0 };

  surface_role_class =
    META_WAYLAND_SURFACE_ROLE_CLASS (meta_wayland_wl_shell_surface_parent_class);
  surface_role_class->commit (surface_role, pending);

  /* For wl_shell, it's equivalent to an unmap. Semantics
   * are poorly defined, so we can choose some that are
   * convenient for us. */
  if (surface->buffer_ref.buffer && !window)
    {
      create_wl_shell_surface_window (surface);
    }
  else if (!surface->buffer_ref.buffer && window)
    {
      if (wl_shell_surface->popup)
        meta_wayland_popup_dismiss (wl_shell_surface->popup);
      else
        meta_wayland_surface_destroy_window (surface);
      return;
    }

  if (!window)
    return;

  if (!pending->newly_attached)
    return;

  meta_wayland_surface_calculate_window_geometry (surface, &geom, 0, 0);
  meta_window_wayland_move_resize (window,
                                   NULL,
                                   geom, pending->dx, pending->dy);
}
static void
xdg_popup_role_commit (MetaWaylandSurfaceRole  *surface_role,
                       MetaWaylandPendingState *pending)
{
  MetaWaylandSurfaceRoleClass *surface_role_class;
  MetaWaylandSurface *surface =
    meta_wayland_surface_role_get_surface (surface_role);
  MetaWindow *window = surface->window;
  MetaRectangle geom = { 0 };

  surface_role_class =
    META_WAYLAND_SURFACE_ROLE_CLASS (meta_wayland_xdg_popup_parent_class);
  surface_role_class->commit (surface_role, pending);

  if (surface->buffer_ref.buffer == NULL)
    {
      /* XDG surfaces can't commit NULL buffers */
      wl_resource_post_error (surface->resource,
                              WL_DISPLAY_ERROR_INVALID_OBJECT,
                              "Cannot commit a NULL buffer to an xdg_popup");
      return;
    }

  if (!pending->newly_attached)
    return;

  /* If the window disappeared the surface is not coming back. */
  if (!window)
    return;

  meta_wayland_surface_apply_window_state (surface, pending);
  meta_wayland_surface_calculate_window_geometry (surface, &geom, 0, 0);
  meta_window_wayland_move_resize (window,
                                   NULL,
                                   geom, pending->dx, pending->dy);
}
static void
xdg_surface_role_commit (MetaWaylandSurfaceRole  *surface_role,
                         MetaWaylandPendingState *pending)
{
  MetaWaylandXdgSurface *xdg_surface = META_WAYLAND_XDG_SURFACE (surface_role);
  MetaWaylandSurfaceRoleClass *surface_role_class;
  MetaWaylandSurface *surface =
    meta_wayland_surface_role_get_surface (surface_role);
  MetaWindow *window = surface->window;
  MetaRectangle geom = { 0 };

  surface_role_class =
    META_WAYLAND_SURFACE_ROLE_CLASS (meta_wayland_xdg_surface_parent_class);
  surface_role_class->commit (surface_role, pending);

  if (surface->buffer_ref.buffer == NULL)
    {
      /* XDG surfaces can't commit NULL buffers */
      wl_resource_post_error (surface->resource,
                              WL_DISPLAY_ERROR_INVALID_OBJECT,
                              "Cannot commit a NULL buffer to an xdg_surface");
      return;
    }

  if (!pending->newly_attached)
    return;

  /* If the window disappeared the surface is not coming back. */
  if (!window)
    return;

  meta_wayland_surface_apply_window_state (surface, pending);

  if (pending->has_new_geometry)
    {
      /* If we have new geometry, use it. */
      geom = pending->new_geometry;
      xdg_surface->has_set_geometry = TRUE;
    }
  else if (!xdg_surface->has_set_geometry)
    {
      /* If the surface has never set any geometry, calculate
       * a default one unioning the surface and all subsurfaces together. */
      meta_wayland_surface_calculate_window_geometry (surface, &geom, 0, 0);
    }
  else
    {
      /* Otherwise, keep the geometry the same. */

      /* XXX: We don't store the geometry in any consistent place
       * right now, so we can't re-fetch it. We should change
       * meta_window_wayland_move_resize. */

      /* XXX: This is the common case. Recognize it to prevent
       * a warning. */
      if (pending->dx == 0 && pending->dy == 0)
        return;

      g_warning ("XXX: Attach-initiated move without a new geometry. This is unimplemented right now.");
      return;
    }

  meta_window_wayland_move_resize (window,
                                   &xdg_surface->acked_configure_serial,
                                   geom, pending->dx, pending->dy);
  xdg_surface->acked_configure_serial.set = FALSE;
}