vis-lua: add window.{width, height} read only properties

2 files changed, 11 insertions, 0 deletions

diff --git a/README.md b/README.md
index d8dc1b4..6a77f22 100644
--- a/README.md
+++ b/README.md
@@ -621,6 +621,7 @@ At this time there exists no API stability guarantees.
    - `style_define(id, style)` where `id` is a constant and `style` a string
    - `style(id, start, end)` apply style to file range, will be cleared after every redraw
    - `viewport` a range denoting the currently visible area of the window
+   - `width` and `height`, readonly, query window dimension
  - `cursor`
    - `line` (1 based), `col` (1 based)
    - `to(line, col)`
diff --git a/vis-lua.c b/vis-lua.c
index ee474e1..b65796e 100644
--- a/vis-lua.c
+++ b/vis-lua.c
@@ -603,6 +603,16 @@ static int window_index(lua_State *L) {
 			return 1;
 		}
 
+		if (strcmp(key, "width") == 0) {
+			lua_pushunsigned(L, vis_window_width_get(win));
+			return 1;
+		}
+
+		if (strcmp(key, "height") == 0) {
+			lua_pushunsigned(L, vis_window_height_get(win));
+			return 1;
+		}
+
 		if (strcmp(key, "file") == 0) {
 			obj_ref_new(L, win->file, "vis.file");
 			return 1;