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Streamkeys v1.8.2 Build Status

Chrome extension to send "global" (ie. across the browser) hotkeys to various online media players.

It is available on the Chrome Store:

https://chrome.google.com/webstore/detail/streamkeys/ekpipjofdicppbepocohdlgenahaneen?hl=en

Installation

Requirements

  • Node.js

Install

Clone the repo and then install dependencies:

$ npm install

Then to build the extension in watch mode, run:

$ npm run develop

In Chrome, load the unpacked extension from build/unpacked-dev/.

NPM Scripts

  • npm test: Run unit tests.

  • npm run develop: Lints code/*, runs browserify, copies built code to build/unpacked-dev/ and test/streamkeys-ext/ in watch mode

  • npm run grunt:dev: Lints code/*, runs browserify and copies built code to build/unpacked-dev/ and test/streamkeys-ext/

  • npm run grunt:rel: Lints code/*, runs browserify and uglify and copies built code to build/unpacked-prod/ and test/streamkeys-ext/

  • npm run grunt:watch: Watches for changes to JS files in code/*, lints code/*, runs browserify and copies built code to build/unpacked-dev/

  • npm run grunt:lint: Lints code/*

Info

This extension works by sending click events to the elements that control the music player. Each music site has an associated controller which contains the css selectors for the play/pause/next/previous/mute buttons (where available). In addition there is a BaseController module which contains common functions that are shared across all controllers.

The background script routes hotkey presses from the user to the correct tab (ie., the media player(s) tab) if the media player site is enabled.

Adding Sites

Adding a new site to the extension is straight forward. There are 3 steps:

1. Add site controller

Figure out the css selectors for a site's media player buttons and create a new controller in code/js/controllers/. Naming scheme is {Sitename}Controller.js. You should copy code from an exisiting controller as a template. Here is an example controller for Fooplayer:

Filename: FooplayerController.js

"use strict";
(function() {
  var BaseController = require("BaseController");

  new BaseController({
    playPause: "#play_btn",
    playNext: "#next_btn",
    playPrev: "#prev_btn",
    mute: "#mute_btn",

    playState: "#play_btn.playing",
    song: "#song",
    artist: "#artist"
  });
})();
Special controller properties:
  • buttonSwitch - Used to determine playing state. Set to true if a site only shows the pause button when it's playing and only shows the play button when it's paused.
  • playState - Used to determine playing state. Set to the selector that will return true if the player is playing. Example: playState: "#play_btn.playing"
  • iframe - Used when the player is nested inside an iframe. Set to the selector of the iframe containing the player. Example: iframe: "#player-frame"

Note: One of buttonSwitch or playState should (almost) always be set. If buttonSwitch is true then your controller must define both play and pause selectors. If a playState is defined, then you controller might have either a single playPause selector or both play and pause selectors.

2. Add site to sitelist

Next, add the site to the Sitelist object in code/js/modules/Sitelist.js.

"fooplay": { name: "Fooplay", url: "http://www.fooplayer.com" }

The object key name is very important. It serves two purposes: constructs the site's controller name as well as builds the regular expression which will be used to check URLs to inject the controller into. It is important that the url is correct, and that the object's key name is contained in the URL.

If it is not possible for the object's key name to be part of the sites URL then you can add the optional alias array field to the object which will add the array's contents into the regular expression to match URLs. For example, for lastFM:

"last": { name: "LastFm", url: "http://www.last.fm", controller: "LastfmController.js", alias: ["lastfm"] }

the alias here will match URLs: last.* AND lastfm.*

The logic to construct the controller name is: Capitalized object key + "Controller". So, using the above example we should name our LastFM controller: "LastController" based on that key name.

If it is not possible for the controller file to be named according to that scheme then add the optional controller property to the site object and put the FULL controller name there, for example: "SonyMusicUnlimitedController.js"

Tests

There is a Karma test suite that simulates core extension functionality. The automated Travis-CI will trigger on every pull request/push.

To run the tests locally, simply

$ npm test

Linux MPRIS support

On Linux you can enable basic MPRIS support in options. Currently, this requires single player mode to be enabled. It requires an extra host script to be installed. The host script currently supports Chromium, Google Chrome and Brave.

Install host script

To install the host script, run the following commands:

$ extension_id="ekpipjofdicppbepocohdlgenahaneen"
$ installer=$(find $HOME/.config -name "mpris_host_setup.py" | grep ${extension_id})
$ python3 "${installer}" install ${extension_id}

A restart of the browser is necessary to load the changes.

Uninstall host script

To uninstall the host script, run the following commands:

$ extension_id="ekpipjofdicppbepocohdlgenahaneen"
$ installer=$(find $HOME/.config -name "mpris_host_setup.py" | grep ${extension_id})
$ python3 "${installer}" uninstall

License (MIT)

Copyright (c) 2018 Alex Gabriel under the MIT license.