Merge pull request #2396 from RyanDwyer/fix-resize-wiggle

Correctly track saved surfaces during multiple transactions

1 files changed, 20 insertions, 0 deletions

diff --git a/sway/tree/view.c b/sway/tree/view.c
index 02a33c10..051b93ce 100644
--- a/sway/tree/view.c
+++ b/sway/tree/view.c
@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <wayland-server.h>
 #include <wlr/render/wlr_renderer.h>
+#include <wlr/types/wlr_buffer.h>
 #include <wlr/types/wlr_output_layout.h>
 #include "config.h"
 #ifdef HAVE_XWAYLAND
@@ -1093,3 +1094,22 @@ void view_set_urgent(struct sway_view *view, bool enable) {
 bool view_is_urgent(struct sway_view *view) {
 	return view->urgent.tv_sec || view->urgent.tv_nsec;
 }
+
+void view_remove_saved_buffer(struct sway_view *view) {
+	if (!sway_assert(view->saved_buffer, "Expected a saved buffer")) {
+		return;
+	}
+	wlr_buffer_unref(view->saved_buffer);
+	view->saved_buffer = NULL;
+}
+
+void view_save_buffer(struct sway_view *view) {
+	if (!sway_assert(!view->saved_buffer, "Didn't expect saved buffer")) {
+		view_remove_saved_buffer(view);
+	}
+	if (view->surface && wlr_surface_has_buffer(view->surface)) {
+		view->saved_buffer = wlr_buffer_ref(view->surface->buffer);
+		view->saved_buffer_width = view->surface->current.width;
+		view->saved_buffer_height = view->surface->current.height;
+	}
+}