MethodChannelWebviewWinFloating constructor

MethodChannelWebviewWinFloating()

Implementation

MethodChannelWebviewWinFloating() {
  assert(() {
    // When hot-reload in debugging mode, clear all old webviews created before hot-reload
    methodChannel.invokeMethod<bool>('clearAll');
    return true;
  }());

  methodChannel.setMethodCallHandler((call) async {
    //log("[webview] native->flutter: $call");
    int? webviewId = call.arguments["webviewId"];
    assert(webviewId != null);
    final ref = webviewMap[webviewId];
    if (ref == null) {
      log("webview not found: id = $webviewId");
      return;
    }

    final controller = ref.target;
    if (controller == null) {
      webviewMap.remove(webviewId);
      log("webview is alive but not referenced anymore: id = $webviewId");
      return;
    }

    if (call.method == "OnWebMessageReceived") {
      String message = call.arguments["message"]!;
      controller.notifyMessageReceived_(message);
    } else if (call.method == "onPageStarted") {
      String url = call.arguments["url"]!;
      bool isNewWindow = call.arguments["isNewWindow"]!;
      bool isUserInitiated = call.arguments["isUserInitiated"]!;
      controller.notifyOnPageStarted_(url, isNewWindow, isUserInitiated);
    } else if (call.method == "onPageFinished") {
      String url = call.arguments["url"]!;
      int errCode = call.arguments["errCode"]!;
      controller.notifyOnPageFinished_(url, errCode);
    } else if (call.method == "onPageTitleChanged") {
      String title = call.arguments["title"]!;
      controller.notifyOnPageTitleChanged_(title);
    } else if (call.method == "onMoveFocusRequest") {
      bool isNext = call.arguments["isNext"]!;
      controller.notifyOnFocusRequest_(isNext);
    } else if (call.method == "OnFullScreenChanged") {
      bool? isFullScreen = call.arguments["isFullScreen"];
      assert(isFullScreen != null);
      controller.notifyFullScreenChanged_(isFullScreen!);
    } else if (call.method == "onHistoryChanged") {
      controller.notifyHistoryChanged_();
    } else {
      assert(false, "unknown call from native: ${call.method}");
    }
  });
}