From c2580cfe2466589c8bd9348225820888a3fc4c0a Mon Sep 17 00:00:00 2001
From: nicm <nicm>
Date: Tue, 25 Oct 2022 17:53:31 +0000
Subject: [PATCH] Initialize context before testing it.

---
 screen-write.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/screen-write.c b/screen-write.c
index a2107f2a..24195708 100644
--- a/screen-write.c
+++ b/screen-write.c
@@ -1505,10 +1505,9 @@ screen_write_fullredraw(struct screen_write_ctx *ctx)
 
 	screen_write_collect_flush(ctx, 0, __func__);
 
-	if (ttyctx.redraw_cb != NULL) {
-		screen_write_initctx(ctx, &ttyctx, 1);
+	screen_write_initctx(ctx, &ttyctx, 1);
+	if (ttyctx.redraw_cb != NULL)
 		ttyctx.redraw_cb(&ttyctx);
-	}
 }
 
 /* Trim collected items. */
@@ -2129,10 +2128,9 @@ screen_write_alternateon(struct screen_write_ctx *ctx, struct grid_cell *gc,
 	screen_write_collect_flush(ctx, 0, __func__);
 	screen_alternate_on(ctx->s, gc, cursor);
 
-	if (ttyctx.redraw_cb != NULL) {
-		screen_write_initctx(ctx, &ttyctx, 1);
+	screen_write_initctx(ctx, &ttyctx, 1);
+	if (ttyctx.redraw_cb != NULL)
 		ttyctx.redraw_cb(&ttyctx);
-	}
 }
 
 /* Turn alternate screen off. */
@@ -2149,8 +2147,7 @@ screen_write_alternateoff(struct screen_write_ctx *ctx, struct grid_cell *gc,
 	screen_write_collect_flush(ctx, 0, __func__);
 	screen_alternate_off(ctx->s, gc, cursor);
 
-	if (ttyctx.redraw_cb != NULL) {
-		screen_write_initctx(ctx, &ttyctx, 1);
+	screen_write_initctx(ctx, &ttyctx, 1);
+	if (ttyctx.redraw_cb != NULL)
 		ttyctx.redraw_cb(&ttyctx);
-	}
 }