From d7d16f1ac8866c013a1befbbe147db8dda134b20 Mon Sep 17 00:00:00 2001
From: Zedhugh Chen <zedhugh@gmail.com>
Date: Wed, 29 Jul 2026 04:50:10 +0800
Subject: [PATCH] =?UTF-8?q?feat(window):=20=E6=97=A0=E6=A0=87=E9=A2=98?=
 =?UTF-8?q?=E7=AA=97=E5=8F=A3=E6=A0=87=E9=A2=98=E6=8C=89=E4=BC=98=E5=85=88?=
 =?UTF-8?q?=E7=BA=A7=E5=9B=9E=E9=80=80=E6=98=BE=E7=A4=BA=20instance/class/?=
 =?UTF-8?q?app=5Fid?=
MIME-Version: 1.0
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新增 window_get_showing_title，按 title → instance_name →
class_name → app_id 优先级取显示标题，窗口快照改用该函数，
避免标题缺失时显示为空。
---
 src/core/listeners.c | 3 ++-
 src/core/window.c    | 8 ++++++++
 src/core/window.h    | 1 +
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/core/listeners.c b/src/core/listeners.c
index a698a54..fed169c 100644
--- a/src/core/listeners.c
+++ b/src/core/listeners.c
@@ -5,6 +5,7 @@
 #include "core/binding.h"
 #include "core/layout.h"
 #include "core/state.h"
+#include "core/window.h"
 
 #define FOR_EACH_LISTENER(FIELD, BODY)         \
   do {                                         \
@@ -117,7 +118,7 @@ static bool listeners_window_snapshot(
   *out = (zdwm_window_t){
     .workspace = window->workspace_id,
     .id = window->id,
-    .title = window->title,
+    .title = window_get_showing_title(window),
     .focused = workspace->focused_window_id == window->id,
     .urgent = window->urgent,
     .skip_taskbar = window->skip_taskbar,
diff --git a/src/core/window.c b/src/core/window.c
index d0b4385..ca722c2 100644
--- a/src/core/window.c
+++ b/src/core/window.c
@@ -145,3 +145,11 @@ bool window_can_resize(const window_t *window) {
 
   return true;
 }
+
+const char *window_get_showing_title(const window_t *window) {
+  if (window->title) return window->title;
+  if (window->instance_name) return window->instance_name;
+  if (window->class_name) return window->class_name;
+  if (window->app_id) return window->app_id;
+  return nullptr;
+}
diff --git a/src/core/window.h b/src/core/window.h
index c566541..e3a3a48 100644
--- a/src/core/window.h
+++ b/src/core/window.h
@@ -67,3 +67,4 @@ bool window_need_resize(const window_t *window, int32_t width, int32_t height);
 bool window_should_has_border(const window_t *window);
 bool window_should_fix_size(const window_t *window);
 bool window_can_resize(const window_t *window);
+const char *window_get_showing_title(const window_t *window);