From 5c9be633471525503c80a82af54db24a29357070 Mon Sep 17 00:00:00 2001
From: zhonghua <zhonghua>
Date: Wed, 25 Mar 2026 09:59:19 +0800
Subject: [PATCH] =?UTF-8?q?fix(teacher):=20=E8=AF=BE=E7=A8=8B=E8=B5=84?=
 =?UTF-8?q?=E6=BA=90=E4=B8=BA=E7=A9=BA=E6=97=B6=E7=A6=81=E7=94=A8=E5=B1=95?=
 =?UTF-8?q?=E6=92=AD=E6=A8=A1=E5=BC=8F=E6=8C=89=E9=92=AE?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Made-with: Cursor
---
 .../src/views/teacher/lessons/LessonView.vue        | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/reading-platform-frontend/src/views/teacher/lessons/LessonView.vue b/reading-platform-frontend/src/views/teacher/lessons/LessonView.vue
index 2dc7117..8ad5973 100644
--- a/reading-platform-frontend/src/views/teacher/lessons/LessonView.vue
+++ b/reading-platform-frontend/src/views/teacher/lessons/LessonView.vue
@@ -34,7 +34,12 @@
             <StepForwardOutlined />
           </a-button>
         </a-button-group>
-        <a-button type="primary" class="broadcast-btn" @click="openBroadcastMode">
+        <a-button
+          type="primary"
+          class="broadcast-btn"
+          :disabled="!hasCourseResources"
+          @click="openBroadcastMode"
+        >
           <template #icon>
             <ExpandOutlined />
           </template>
@@ -893,8 +898,12 @@ const nextStep = () => {
   }
 };
 
-// 打开展播模式（新标签页）
+// 打开展播模式（新标签页）；无课程级资源时展播无内容，与侧栏「课程资源」一致
 const openBroadcastMode = () => {
+  if (!hasCourseResources.value) {
+    message.warning('暂无课程资源，无法进入展播模式');
+    return;
+  }
   const broadcastUrl = `${window.location.origin}/teacher/broadcast/${lessonId.value}?lessonIndex=${currentLessonIndex.value}&stepIndex=${currentStepIndex.value}`;
   window.open(broadcastUrl, '_blank', 'noopener,noreferrer');
 };