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hmssdk_flutter_web

hmssdk_flutter web 3rd-party implementation

Currently this version only works with hmssdk_flutter: 0.7.3

How to use

  • Simply add this into pubspec.yaml

    dependencies:
      hmssdk_flutter_web: ^0.0.5
  • Or do it manually

    1. Clone this repo and place it in some directory you like (<<DIR_TO_PLUGIN>>)

    2. Optional: You may want to rebuild/update the javascript part using (may break this plugin due to version difference)

    cd webpack
    npm install
    # # In case you had never used webpack
    # # see https://webpack.js.org/
    # npm install --global webpack
    # npm install --global webpack-cli
    webpack
    1. Then in your projects pubspec.yaml
    dependencies:
      hmssdk_flutter_web:
        path: <<DIR_TO_PLUGIN>>

Note: Instead of using HMSVideoView from package:hmssdk_flutter/hmssdk_flutter.dart, use HMSVideoView from this package (my HMSVideoView simply adds javascript parts into original file so it will also work for Android/iOS)

import 'package:hmssdk_flutter_web/hmssdk_flutter_web.dart' as hmsweb;

// and in your build function ...
return hmsweb.HMSVideoView(
    matchParent: true,
    scaleType: ScaleType.SCALE_ASPECT_FIT,
    track: track as HMSVideoTrack)

How this works

This simply bridges high-level hms-video-store javascript library into flutter-web.

  • lib/hmssdk_flutter_web.dart

    is the entry point, redirects imports based on platform (dart.library.js)

  • lib/implementation.dart

    is the main implementation, register this plugin and connects to native javascript parts

  • webpack/*

    is the js side hms-video-store package with the magic code inside hmssdk.js

  • assets/hmssdk_flutter_web.js

    is the compiled/minimized js package, at plugin registration time this file will be automatically imported as a <script> into <head> of index.html

Works to do

  • This plugin uses high-level hms-video-store, which makes every call from dart-side very 'bouncy'

    (low level js api -> argument remapping -> hms-video-store -> remapping by me again -> json -> pass to dart -> json-decode into map -> hmssdk-flutter)

    • It would be better if developers give me access to lower level js api, which i assume have similar parameter structure as dart-side?
  • It would also be better if the original plugin get converted into Federated plugin and get rid of channels

  • So far build / room / video / screen share api works, but I didn't check/debug other parts as I do not use them for my (client's) project, debugging them is not hard, but time wasting as you are going to find the parameter dict/map structure in the original libraries (both dart and js) and do conversion between them

    • Most conversion are done in webpack/hmssdk.js, e.g. function jsRoomToRoom()
  • I am passing all parameters between js and dart using json, so not ideal, but I don't want to spend time to create dart @JS classes simply for parameter passing, maybe there are some better methods?

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