File vte-widget-size-limits.patch of Package vte.34434

From 1803ba866053a3d7840892b9d31fe2944a183eda Mon Sep 17 00:00:00 2001
From: Christian Persch <chpe@src.gnome.org>
Date: Sun, 2 Jun 2024 19:13:15 +0200
Subject: [PATCH] widget: Add safety limit to widget size requests

https://gitlab.gnome.org/GNOME/vte/-/issues/2786
---
 src/vtegtk.cc | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff -urp vte-0.44.2.orig/src/vtegtk.cc vte-0.44.2/src/vtegtk.cc
--- vte-0.44.2.orig/src/vtegtk.cc	2024-06-12 14:05:57.090281502 -0500
+++ vte-0.44.2/src/vtegtk.cc	2024-06-12 14:10:02.915961119 -0500
@@ -63,6 +63,42 @@
 
 #define VTE_TERMINAL_CSS_NAME "vte-terminal"
 
+#define min(a,b) ((a) < (b) ? (a) : (b))
+#define max(a,b) ((a) > (b) ? (a) : (b))
+#define clamp(a,b,c) min(max(a,b),c)
+
+static inline void
+sanitise_widget_size_request(int* minimum,
+                             int* natural) noexcept
+{
+        // Overly large size requests will make gtk happily allocate
+        // a window size over the window system's limits (see
+        // e.g. https://gitlab.gnome.org/GNOME/vte/-/issues/2786),
+        // leading to aborting the whole process.
+        // The toolkit should be in a better position to know about
+        // these limits and not exceed them (which here is certainly
+        // possible since our minimum sizes are very small), let's
+        // limit the widget's size request to some large value
+        // that hopefully is within the absolute limits of
+        // the window system (assumed here to be int16 range,
+        // and leaving some space for the widgets that contain
+        // the terminal).
+        auto const limit = (1 << 15) - (1 << 12);
+
+        if (*minimum > limit || *natural > limit) {
+                static auto warned = false;
+
+                if (!warned) {
+                        g_warning("Widget size request (minimum %d, natural %d) exceeds limits\n",
+                                  *minimum, *natural);
+                        warned = true;
+                }
+        }
+
+        *minimum = min(*minimum, limit);
+        *natural = clamp(*natural, *minimum, limit);
+}
+
 struct _VteTerminalClassPrivate {
         GtkStyleProvider *style_provider;
 };
@@ -288,6 +324,7 @@ vte_terminal_get_preferred_width(GtkWidg
 {
 	VteTerminal *terminal = VTE_TERMINAL(widget);
         IMPL(terminal)->widget_get_preferred_width(minimum_width, natural_width);
+        sanitise_widget_size_request(minimum_width, natural_width);
 }
 
 static void
@@ -297,6 +334,7 @@ vte_terminal_get_preferred_height(GtkWid
 {
 	VteTerminal *terminal = VTE_TERMINAL(widget);
         IMPL(terminal)->widget_get_preferred_height(minimum_height, natural_height);
+        sanitise_widget_size_request(minimum_height, natural_height);
 }
 
 static void