From b7cfb7990668847fd2aa3095d803560d4482ff51 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Fri, 11 Dec 2015 18:52:31 +0200
Subject: [PATCH] Process DestroyNotify events

---
 source/main.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/source/main.c b/source/main.c
index 05b5955..9865eb9 100644
--- a/source/main.c
+++ b/source/main.c
@@ -310,6 +310,21 @@ void add_window(Compositor *compositor, CompositedScreen *screen, Window w)
 	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 }
 
+void remove_window(CompositedScreen *screen, Window w)
+{
+	unsigned i;
+
+	for(i=0; i<screen->nwindows; ++i)
+		if(screen->windows[i].window==w)
+		{
+			glDeleteTextures(1, &screen->windows[i].texture);
+
+			--screen->nwindows;
+			for(; i<screen->nwindows; ++i)
+				screen->windows[i] = screen->windows[i+1];
+		}
+}
+
 CompositedScreen *find_screen_by_root(Compositor *compositor, Window root)
 {
 	unsigned i;
@@ -487,6 +502,15 @@ void process_create_window_event(Compositor *compositor, XCreateWindowEvent *eve
 	add_window(compositor, screen, event->window);
 }
 
+void process_destroy_window_event(Compositor *compositor, XDestroyWindowEvent *event)
+{
+	CompositedScreen *screen = find_screen_by_root(compositor, event->event);
+	if(!screen)
+		return;
+
+	remove_window(screen, event->window);
+}
+
 void process_map_event(Compositor *compositor, XMapEvent *event)
 {
 	CompositedScreen *screen = find_screen_by_root(compositor, event->event);
@@ -538,6 +562,9 @@ int process_event(Compositor *compositor)
 	case CreateNotify:
 		process_create_window_event(compositor, &event.xcreatewindow);
 		break;
+	case DestroyNotify:
+		process_destroy_window_event(compositor, &event.xdestroywindow);
+		break;
 	case MapNotify:
 		process_map_event(compositor, &event.xmap);
 		break;
-- 
2.43.0