flush window content region after redraw

Author: FelixKratz

src/bar.c

@@ -215,10 +215,14 @@ void bar_draw(struct bar* bar, bool forced, bool threaded) {
       CGContextClearRect(window->context, window->frame);
       bar_item_draw(bar_item, window->context);
       CGContextFlush(window->context);
+      window_flush(window);
     }
   }
 
-  if (g_bar_manager.bar_needs_update) CGContextFlush(bar->window.context);
+  if (g_bar_manager.bar_needs_update) {
+    CGContextFlush(bar->window.context);
+    window_flush(&bar->window);
+  }
 }
 
 static void bar_calculate_bounds_top_bottom(struct bar* bar) {

src/bar_item.c

@@ -711,6 +711,7 @@ void* draw_item_proc(void* context) {
   CGContextClearRect(info->window->context, info->window->frame);
   bar_item_draw(&info->bar_item, info->window->context);
   CGContextFlush(info->window->context);
+  window_flush(info->window);
   free(context);
   return NULL;
 }

src/popup.c

@@ -345,6 +345,7 @@ void popup_draw(struct popup* popup) {
   popup->background.shadow.enabled = shadow;
 
   CGContextFlush(popup->window.context);
+  window_flush(&popup->window);
 
   if (popup->needs_ordering) {
     popup_order_windows(popup);

src/window.c

@@ -93,6 +93,10 @@ void window_clear(struct window* window) {
   window->needs_resize = false;
 }
 
+void window_flush(struct window* window) {
+  SLSFlushWindowContentRegion(g_connection, window->id, NULL);
+}
+
 void windows_freeze() {
   if (g_transaction) return;
 

src/window.h

@@ -1,6 +1,7 @@
 #pragma once
 #include "misc/helpers.h"
 
+extern CGError SLSFlushWindowContentRegion(int cid, uint32_t wid, void* dirty);
 extern CFTypeRef SLSTransactionCreate(int cid);
 extern CGError SLSTransactionOrderWindow(CFTypeRef transaction, uint32_t wid, int mode, uint32_t relativeToWID);
 extern CGError SLSTransactionSetWindowLevel(CFTypeRef transaction, uint32_t wid, int level);
@@ -85,6 +86,7 @@ void window_init(struct window* window);
 void window_create(struct window* window, CGRect frame);
 void window_close(struct window* window);
 void window_clear(struct window* window);
+void window_flush(struct window* window);
 
 void window_move(struct window* window, CGPoint point);
 void window_set_frame(struct window* window, CGRect frame);