ime: fix initial cursor rectangle being reported as 0,0,0,0

Closes #1994

CHANGELOG.md

@@ -143,6 +143,8 @@
 * Grapheme clustering state not reset on cursor movements.
 * Kitty keyboard protocol: no release events emitted for composed
   keys.
+* IME: the initial cursor position was reported as 0,0,0,0
+  ([#1994][1994]).
 
 [1918]: https://codeberg.org/dnkl/foot/issues/1918
 [1929]: https://codeberg.org/dnkl/foot/issues/1929
@@ -151,6 +153,7 @@
 [1960]: https://codeberg.org/dnkl/foot/issues/1960
 [1956]: https://codeberg.org/dnkl/foot/issues/1956
 [1963]: https://codeberg.org/dnkl/foot/issues/1963
+[1994]: https://codeberg.org/dnkl/foot/issues/1994
 
 
 ### Security

ime.c

@@ -68,6 +68,16 @@ enter(void *data, struct zwp_text_input_v3 *zwp_text_input_v3,
 
     /* The main grid is the *only* input-receiving surface we have */
     seat->ime_focus = term;
+
+    const struct coord *cursor = &term->grid->cursor.point;
+
+    term_ime_set_cursor_rect(
+        term,
+        term->margins.left + cursor->col * term->cell_width,
+        term->margins.top + cursor->row * term->cell_height,
+        term->cell_width,
+        term->cell_height);
+
     ime_enable(seat);
 }