From 3c80559db2e7bb7ce9c8df6fb352be3fdef81779 Mon Sep 17 00:00:00 2001
From: takase1121 <20792268+takase1121@users.noreply.github.com>
Date: Mon, 30 Aug 2021 15:19:51 +0800
Subject: [PATCH] add system.capture_mouse()

This allows lite-xl to temporarily read mouse events out of its window.
This will be used to implement tab splitting.
---
 src/api/system.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/api/system.c b/src/api/system.c
index 2f1bf763..616c34fd 100644
--- a/src/api/system.c
+++ b/src/api/system.c
@@ -274,6 +274,13 @@ static int f_set_cursor(lua_State *L) {
 }
 
 
+static int f_capture_mouse(lua_State *L) {
+  int enable = lua_toboolean(L, 1);
+  SDL_CaptureMouse(enable);
+  return 0;
+}
+
+
 static int f_set_window_title(lua_State *L) {
   const char *title = luaL_checkstring(L, 1);
   SDL_SetWindowTitle(window, title);
@@ -642,6 +649,7 @@ static const luaL_Reg lib[] = {
   { "poll_event",          f_poll_event          },
   { "wait_event",          f_wait_event          },
   { "set_cursor",          f_set_cursor          },
+  { "capture_mouse",       f_capture_mouse       },
   { "set_window_title",    f_set_window_title    },
   { "set_window_mode",     f_set_window_mode     },
   { "get_window_mode",     f_get_window_mode     },