From 283eba9667733485becc79a6752b350083b571ad Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sat, 6 Apr 2024 17:29:17 +0530
Subject: [PATCH] Wayland: Respect top level bounds sent by compositor

---
 glfw/internal.h                   | 8 ++++++++
 glfw/wl_client_side_decorations.c | 2 ++
 glfw/wl_window.c                  | 1 +
 3 files changed, 11 insertions(+)

diff --git a/glfw/internal.h b/glfw/internal.h
index 6a505c0fd..019f33d83 100644
--- a/glfw/internal.h
+++ b/glfw/internal.h
@@ -111,6 +111,13 @@ typedef void (* _GLFWdestroycontextfun)(_GLFWwindow*);
 #define GL_CONTEXT_RELEASE_BEHAVIOR_FLUSH 0x82fc
 #define GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR 0x00000008
 
+#define MAX(x, y) __extension__ ({ \
+    __typeof__ (x) a = (x); __typeof__ (y) b = (y); \
+        a > b ? a : b;})
+#define MIN(x, y) __extension__ ({ \
+    __typeof__ (x) a = (x); __typeof__ (y) b = (y); \
+        a < b ? a : b;})
+
 typedef int GLint;
 typedef unsigned int GLuint;
 typedef unsigned int GLenum;
@@ -875,3 +882,4 @@ int _glfwPlatformSetWindowBlur(_GLFWwindow* handle, int value);
 char* _glfw_strdup(const char* source);
 
 void _glfw_free_clipboard_data(_GLFWClipboardData *cd);
+
diff --git a/glfw/wl_client_side_decorations.c b/glfw/wl_client_side_decorations.c
index 8700870d3..7b22dcbbe 100644
--- a/glfw/wl_client_side_decorations.c
+++ b/glfw/wl_client_side_decorations.c
@@ -469,6 +469,8 @@ set_csd_window_geometry(_GLFWwindow *window, int32_t *width, int32_t *height) {
     if (!size_specified_by_compositor) {
         *width = window->wl.user_requested_content_size.width;
         *height = window->wl.user_requested_content_size.height;
+        if (window->wl.xdg.top_level_bounds.width > 0) *width = MIN(*width, window->wl.xdg.top_level_bounds.width);
+        if (window->wl.xdg.top_level_bounds.height > 0) *height = MIN(*height, window->wl.xdg.top_level_bounds.height);
         if (has_csd) *height += decs.metrics.visible_titlebar_height;
     }
     decs.geometry.x = 0; decs.geometry.y = 0;
diff --git a/glfw/wl_window.c b/glfw/wl_window.c
index 4f5752f56..d8c4e7f89 100644
--- a/glfw/wl_window.c
+++ b/glfw/wl_window.c
@@ -719,6 +719,7 @@ xdg_toplevel_configure_bounds(void *data, struct xdg_toplevel *xdg_toplevel UNUS
     _GLFWwindow *window = data;
     window->wl.xdg.top_level_bounds.width = width;
     window->wl.xdg.top_level_bounds.height = height;
+    debug("Compositor set top-level bounds of: %dx%d\n", width, height);
 }
 
 static const struct xdg_toplevel_listener xdgToplevelListener = {