setMessageChannel static method

void setMessageChannel()

Implementation

static void setMessageChannel() {
  channel = channel ?? const BasicMessageChannel("plotlineMessageChannel", JSONMessageCodec());
  channel?.setMessageHandler((message) async {
    Map<String, dynamic> messageMap = message;
    plotlineDebugLog("Plotline Basic Message Channel: message received $message");
    switch (messageMap["method"]) {
      case "getAllElements":
        double pixRatio = double.parse(messageMap["pixelRatio"].toString());
        getAllElements(messageMap["listenerId"], pixRatio,
            messageMap["screenWidth"], messageMap["screenHeight"]);
        break;
      case "areViewsPresent":
        double pixRatio = double.parse(messageMap["pixelRatio"].toString());
        areViewsPresent(
            messageMap["listenerId"],
            messageMap["searchElements"],
            pixRatio,
            messageMap["screenWidth"],
            messageMap["screenHeight"]);
        break;
      case "getViewPosition":
        double pixRatio = double.parse(messageMap["pixelRatio"].toString());
        getViewPosition(
            messageMap["listenerId"],
            messageMap["clientElementId"],
            pixRatio,
            messageMap["screenWidth"],
            messageMap["screenHeight"]);
        break;
      case "getReplayMaskRects":
        try {
          double pixRatio = double.parse(messageMap["pixelRatio"].toString());
          plotlineChannel.invokeMethod('getReplayMaskRects', <String, dynamic>{
            "listenerId": messageMap["listenerId"],
            "rects": collectReplayMaskRects(pixRatio, types: Set<String>.from(messageMap["autoMaskedViews"] ?? const [])),
          });
        } catch (e) {
          plotlineDebugLog("Error in getReplayMaskRects: $e");
        }
        break;
      case "setPlotlineEventsListener":
        try {
          _callback(messageMap["eventName"], messageMap["properties"]);
        } catch (e) {
          plotlineDebugLog("Error in passing Plotline Events: $e");
        }
        break;
      case "setPlotlineRedirectListener":
        try {
          _redirectCallback(messageMap["properties"]);
        } catch (e) {
          plotlineDebugLog("Error in passing Plotline Redirect Listener: $e");
        }
        break;
      case "setTrackedElements":
        try {
          final ids = messageMap["elementIds"];
          if (ids is List) {
            _trackedKeys = ids.map((e) => e.toString()).toSet();
            _gatingActive = true;
            _trackVersion.value++;
            if (shouldEnableDebug) {
              // Detectors attach a frame later, so the query that follows can still miss.
              plotlineDebugLog(
                  "PlotlineDebug: setTrackedElements -> $_trackedKeys "
                  "at ${DateTime.now().toIso8601String()} (PViews will now rebuild)");
            }
          }
        } catch (e) {
          plotlineDebugLog("Error in setTrackedElements: $e");
        }
        break;
      case "setTrackAllElements":
        try {
          _trackAll = messageMap["trackAll"] == true;
          _trackVersion.value++;
        } catch (e) {
          plotlineDebugLog("Error in setTrackAllElements: $e");
        }
        break;
      case "initSuccessfulCallback":
        try {
          _initSuccessfulCallback();
        } catch(e) {
          plotlineDebugLog("Error in passing initSuccessfulCallback: $e");
        }
        break;
      case "initFailureCallback":
        try {
          _initFailureCallback(messageMap["error"]);
        } catch(e) {
          plotlineDebugLog("Error in passing initSuccessfulCallback: $e");
        }
        break;
    }
  });
}