From aa8fcccf7d1940018b6bdc8a0642271d080d437e Mon Sep 17 00:00:00 2001
From: yuetsh <517252939@qq.com>
Date: Sun, 5 Oct 2025 01:34:22 +0800
Subject: [PATCH] fix

---
 docs/SYNC_COLLABORATION.md           | 39 ++++++++++++++++++++++++++++
 src/oj/problem/components/Form.vue   |  2 +-
 src/shared/components/CodeEditor.vue | 11 ++++----
 src/shared/composables/sync.ts       |  2 ++
 4 files changed, 48 insertions(+), 6 deletions(-)

diff --git a/docs/SYNC_COLLABORATION.md b/docs/SYNC_COLLABORATION.md
index 5a237d9..bf494cf 100644
--- a/docs/SYNC_COLLABORATION.md
+++ b/docs/SYNC_COLLABORATION.md
@@ -11,6 +11,9 @@
 - [API 文档](#api-文档)
 - [使用示例](#使用示例)
 - [故障排查](#故障排查)
+- [使用限制](#使用限制)
+- [安全考虑](#安全考虑)
+- [配置](#配置)
 
 ## 概述
 
@@ -25,6 +28,7 @@
 - ✅ 权限控制（必须有一个超管）
 - ✅ 房间人数限制（最多 2 人）
 - ✅ 离线检测和自动清理
+- 🖥️ 仅支持桌面端（移动端不可用）
 
 ## 技术栈
 
@@ -617,6 +621,41 @@ setTimeout(() => {
 }, AWARENESS_SYNC_DELAY)
 ```
 
+## 使用限制
+
+### 平台支持
+
+协同编辑功能**仅支持桌面端**，移动端不可用。
+
+**原因：**
+
+1. **屏幕空间限制**
+   - 移动端屏幕较小，难以同时显示光标位置和多用户状态
+   - 协同编辑的用户信息标签需要足够的显示空间
+
+2. **交互体验**
+   - 移动端触摸输入与协同编辑的光标跟随机制不够友好
+   - 桌面端的键盘和鼠标操作更适合代码编辑协作
+
+3. **性能考虑**
+   - WebRTC 连接在移动设备上可能不够稳定
+   - 移动端的网络切换（WiFi/4G/5G）可能影响连接质量
+
+**检测逻辑：**
+
+```vue
+<!-- Form.vue -->
+<IconButton
+  v-if="isDesktop && userStore.isAuthed"
+  :icon="isSynced ? '...' : '...'"
+  @click="toggleSync"
+/>
+
+<template v-if="isDesktop && props.isSynced">
+  <n-tag>同步状态</n-tag>
+</template>
+```
+
 ## 安全考虑
 
 ### 1. 权限控制
diff --git a/src/oj/problem/components/Form.vue b/src/oj/problem/components/Form.vue
index 2298ef1..0051a8c 100644
--- a/src/oj/problem/components/Form.vue
+++ b/src/oj/problem/components/Form.vue
@@ -175,7 +175,7 @@ defineExpose({
         @click="toggleSync"
       />
       
-      <template v-if="props.isSynced">
+      <template v-if="isDesktop && props.isSynced">
         <n-tag v-if="otherUserInfo" type="info">
           与 {{ otherUserInfo.name }} 同步中
         </n-tag>
diff --git a/src/shared/components/CodeEditor.vue b/src/shared/components/CodeEditor.vue
index b620832..8c397f8 100644
--- a/src/shared/components/CodeEditor.vue
+++ b/src/shared/components/CodeEditor.vue
@@ -8,6 +8,7 @@ import { LANGUAGE } from "~/utils/types"
 import { oneDark } from "../themes/oneDark"
 import { smoothy } from "../themes/smoothy"
 import { useCodeSync } from "../composables/sync"
+import { isDesktop } from "../composables/breakpoints"
 
 interface EditorReadyPayload {
   view: EditorView
@@ -59,7 +60,7 @@ const lang = computed((): Extension => {
   return ["Python2", "Python3"].includes(props.language) ? python() : cpp()
 })
 
-const extensions = computed((): Extension[] => [
+const extensions = computed(() => [
   styleTheme,
   lang.value,
   isDark.value ? oneDark : smoothy,
@@ -79,7 +80,7 @@ const cleanupSyncResources = () => {
 }
 
 const initSync = async () => {
-  if (!editorView.value || !props.problem) return
+  if (!editorView.value || !props.problem || !isDesktop.value) return
 
   cleanupSyncResources()
 
@@ -97,7 +98,7 @@ const initSync = async () => {
 
 const handleEditorReady = (payload: EditorReadyPayload) => {
   editorView.value = payload.view as EditorView
-  if (props.sync && props.problem) {
+  if (props.sync) {
     initSync()
   }
 }
@@ -105,7 +106,7 @@ const handleEditorReady = (payload: EditorReadyPayload) => {
 watch(
   () => props.sync,
   (shouldSync) => {
-    if (shouldSync && props.problem && editorView.value) {
+    if (shouldSync) {
       initSync()
     } else {
       cleanupSyncResources()
@@ -116,7 +117,7 @@ watch(
 watch(
   () => props.problem,
   (newProblem, oldProblem) => {
-    if (newProblem !== oldProblem && props.sync && editorView.value) {
+    if (newProblem !== oldProblem && props.sync) {
       initSync()
     }
   },
diff --git a/src/shared/composables/sync.ts b/src/shared/composables/sync.ts
index 094d400..d514abc 100644
--- a/src/shared/composables/sync.ts
+++ b/src/shared/composables/sync.ts
@@ -234,6 +234,8 @@ export function useCodeSync() {
       import("y-codemirror.next"),
     ])
 
+    console.log("Yjs 相关模块导入完成")
+
     // 初始化文档和提供者
     ydoc = new Y.Doc()
     ytext = ydoc.getText("codemirror")