From 56ce6d15b678ab34c0bf603b55448a59e8aa6ab6 Mon Sep 17 00:00:00 2001
From: Jeremy Penner <jeremy@sporktania.com>
Date: Wed, 30 Dec 2020 12:01:29 -0500
Subject: [PATCH] Don't crash the editor if drawing a view fails

---
 vendor/lite/data/core/init.lua     |  6 ++++++
 vendor/lite/data/core/rootview.lua | 10 +++++++---
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/vendor/lite/data/core/init.lua b/vendor/lite/data/core/init.lua
index bff35c2..3af4844 100644
--- a/vendor/lite/data/core/init.lua
+++ b/vendor/lite/data/core/init.lua
@@ -237,8 +237,14 @@ function core.push_clip_rect(x, y, w, h)
   w, h = r-x, b-y
   table.insert(core.clip_rect_stack, { x, y, w, h })
   renderer.set_clip_rect(x, y, w, h)
+  return (#core.clip_rect_stack) - 1
 end
 
+function core.pop_clip_rect_to(length)
+  while #core.clip_rect_stack > length do
+    core.pop_clip_rect()
+  end
+end
 
 function core.pop_clip_rect()
   table.remove(core.clip_rect_stack)
diff --git a/vendor/lite/data/core/rootview.lua b/vendor/lite/data/core/rootview.lua
index 389525f..ca29726 100644
--- a/vendor/lite/data/core/rootview.lua
+++ b/vendor/lite/data/core/rootview.lua
@@ -365,9 +365,13 @@ function Node:draw()
       self:draw_tabs()
     end
     local pos, size = self.active_view.position, self.active_view.size
-    core.push_clip_rect(pos.x, pos.y, size.x + pos.x % 1, size.y + pos.y % 1)
-    self.active_view:draw()
-    core.pop_clip_rect()
+    local clipstate = core.push_clip_rect(pos.x, pos.y, size.x + pos.x % 1, size.y + pos.y % 1)
+    xpcall(function() self.active_view:draw() end,
+           function(msg)
+             love.graphics.setCanvas(nil)
+             common.draw_text(style.font, { common.color "#ff0000" }, msg .. "\n" .. debug.traceback(), "left", pos.x, pos.y, size.x, size.y)
+           end)
+    core.pop_clip_rect_to(clipstate)
   else
     local x, y, w, h = self:get_divider_rect()
     renderer.draw_rect(x, y, w, h, style.divider)