feat: webapp multi-tab JS bridge and multi-WebView management

app/src/main/java/top/yeij/hearth/webview/JsBridge.kt

@@ -5,7 +5,9 @@ import top.yeij.hearth.app.AppRepository
 import top.yeij.hearth.card.Card
 import top.yeij.hearth.card.CardRepository
 import top.yeij.hearth.media.MediaSessionSource
+import top.yeij.hearth.webapp.Tab
 import top.yeij.hearth.webapp.WebApp
+import top.yeij.hearth.webapp.WebAppContainer
 import top.yeij.hearth.webapp.WebAppRepository
 
 class JsBridge(
@@ -16,6 +18,8 @@ class JsBridge(
     private val appRepository: AppRepository? = null,
     private val webAppRepository: WebAppRepository? = null,
     private val cardRepository: CardRepository? = null,
+    private val webAppContainer: WebAppContainer? = null,
+    private val webAppHost: WebAppHost? = null,
 ) {
     private val gson = com.google.gson.Gson()
 
@@ -47,6 +51,94 @@ class JsBridge(
     @android.webkit.JavascriptInterface
     fun fetchWebApps(): String = gson.toJson(webAppRepository?.fetchManifest() ?: emptyList<WebApp>())
 
+    // 打开指定 id 的 webAPP：从清单找 url/name → 创建内容 WebView → 记录标签 → 同步顶栏
+    // Open a web app by id: look up url/name from the manifest -> create content WebView
+    // -> record the tab -> sync the topbar
+    @android.webkit.JavascriptInterface
+    fun openWebApp(id: String) {
+        val repo = webAppRepository ?: return
+        val container = webAppContainer ?: return
+        val host = webAppHost ?: return
+        val app = repo.fetchManifest().firstOrNull { it.id == id }
+        if (app == null) {
+            Log.d("HearthBridge", "openWebApp: unknown id=$id")
+            return
+        }
+        host.openWebView(id, app.url)
+        container.open(id, app.url, app.name)
+        syncTabs()
+        Log.d("HearthBridge", "openWebApp: id=$id name=${app.name} url=${app.url}")
+    }
+
+    // 关闭指定 id 的标签：销毁 WebView → 移除标签 → 若剩标签激活第一个 → 同步顶栏
+    // Close a tab by id: destroy WebView -> remove tab -> activate first if any remain
+    // -> sync the topbar
+    @android.webkit.JavascriptInterface
+    fun closeWebApp(id: String) {
+        val container = webAppContainer ?: return
+        val host = webAppHost ?: return
+        host.closeWebView(id)
+        container.close(id)
+        container.activeTabId()?.let { host.switchWebView(it) }
+        syncTabs()
+        Log.d("HearthBridge", "closeWebApp: id=$id remaining=${container.tabs().size}")
+    }
+
+    // 切换激活标签并显示对应 WebView
+    // Switch the active tab and show its WebView
+    @android.webkit.JavascriptInterface
+    fun switchTab(id: String) {
+        val container = webAppContainer ?: return
+        val host = webAppHost ?: return
+        container.switchTo(id)
+        host.switchWebView(id)
+        syncTabs()
+        Log.d("HearthBridge", "switchTab: id=$id")
+    }
+
+    // 返回已打开标签列表 JSON（id/name/active）
+    // Return the open tab list JSON (id/name/active)
+    @android.webkit.JavascriptInterface
+    fun listTabs(): String {
+        val container = webAppContainer ?: return "[]"
+        val tabs = container.tabs().map { tab ->
+            mapOf("id" to tab.id, "name" to tab.name, "active" to tab.active)
+        }
+        return gson.toJson(tabs)
+    }
+
+    // 当前激活标签回退
+    // Go back on the active tab
+    @android.webkit.JavascriptInterface
+    fun webGoBack() {
+        webAppHost?.goBack()
+        Log.d("HearthBridge", "webGoBack called")
+    }
+
+    // 当前激活标签前进
+    // Go forward on the active tab
+    @android.webkit.JavascriptInterface
+    fun webGoForward() {
+        webAppHost?.goForward()
+        Log.d("HearthBridge", "webGoForward called")
+    }
+
+    // 当前激活标签重载
+    // Reload the active tab
+    @android.webkit.JavascriptInterface
+    fun webReload() {
+        webAppHost?.reload()
+        Log.d("HearthBridge", "webReload called")
+    }
+
+    // 将容器标签状态推送给宿主（同步桌面 H5 顶栏）
+    // Push the container tab state to the host (sync the desktop H5 topbar)
+    private fun syncTabs() {
+        val container = webAppContainer ?: return
+        val host = webAppHost ?: return
+        host.syncTabs(container.tabs())
+    }
+
     // 返回首页卡片目录 JSON（无仓库时返回空数组；有仓库时由 fetchCatalog 保证内置 time 卡）
     // Return the home card catalog JSON (empty array when no repository wired;
     // fetchCatalog guarantees the builtin time card when wired)