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vue-cli-plugin-browser-extension

Browser extension development plugin for vue-cli 3.x

What does it do?

This is intended to be a vue-cli@3.x replacement for Kocal/vue-web-extension v1 (now, Kocal/vue-web-extension is a preset using this plugin).

This plugin changes the serve command for your vue applications. This new command is only for running a livereload server while testing out your browser extension.

This removes the entrypoint of src/main.js, and as such will not scaffold a general vue app.

Packaging and deploying will still be done with yarn build and zipping in up for Chrome, Firefox, or whichever other browser you wish to develop for.

It makes some assumptions about your project setup. I hope to be able to scaffold an app so that identifying the below in unnecessary.

.
├── public/
│   ├── _locales/
│   │   └── en/
│   │       └── messages.json
│   ├── icons/
│   │   └── Icons for your extension. Should include a 16, 19, 38, 48, and 128px square image
│   └── browser-extension.html (default target html template)
├── src/
│   ├── assets/
│   │   └── Static assets in use in your app, like logo.png
│   ├── components/
│   │   └── HelloWorld.vue (modified)
│   ├── content-scripts
│   │   └── content-script.js
│   ├── devtools/ (asked during project generation)
│   │   ├── App.vue
│   │   └── main.js
│   ├── options/ (asked during project generation)
│   │   ├── App.vue
│   │   └── main.js
│   ├── popup/ (asked during project generation)
│   │   ├── App.vue
│   │   └── main.js
│   ├── override/ (asked during project generation)
│   │   ├── App.vue
│   │   └── main.js
│   └── standalone/ (asked during project generation)
│      ├── App.vue
│      └── main.js
├── background.js
└── manifest.json

System Dependencies

If you wish to use the signing key functionality you will need to have openssl available on your system.

Adding to your project

This can be added to your vuejs project by one of the following methods:

Usage

Running the Livereload server. This will build and write to the local dist directory.

This plugin will respect the outputDir setting, however it cannot read into passed CLI args, so if you require a custom output dir, be sure to add it in your vue.config.js file. You can then add this as an unpacked plugin to your browser, and will continue to update as you make changes.

NOTE: you cannot get HMR support in the popup window, however, closing and reopening will refresh your content.

yarn serve
yarn build

Plugin options

Plugin options can be set inside your vue.config.js:

// vue.config.js
module.exports = {
  pluginOptions: {
    browserExtension: {
      // options...
    },
  },
};

Component options

Some browser extension components have additional options which can be set as follows:

// vue.config.js
module.exports = {
  pluginOptions: {
    browserExtension: {
      componentOptions: {
        // <name of component>: <options>
        // e.g.
        contentScripts: {
          entries: {
            content1: 'src/content-script1.js',
            content2: 'src/content-script2.js',
          },
        },
      },
    },
  },
};

background

contentScripts

Internationalization

Some boilerplate for internationalization has been added. This follows the i18n (chrome|WebExtention) spec. Provided for you is the default_locale option in the manifest, and a _locales directory. There is some basic usage of it in the manifest, as well as in some of the boilerplate files. Since this is largely an out of the box solution provided by the browsers, it is heavily encouraged to utilize it. If you do not want to translate your app, simply delete the public/_locales directory, and no longer use the browser.i18n methods.

Browser Polyfills

This plugin by default adds in the official mozilla webextension polyfill to the build. The opinion of this plugin is that developers should be building cross platform, and should have reasonable tooling to do so. By emphasizing cross platform first, your application will be adhering to the community standards, be ready for distribution to other extension stores, and avoid developing against browser APIs that may have no equivalent. The polyfill is a no-op on firefox, and only takes up 20.5kb unminified.

If you still feel strongly to not include the polyfill, then this is what you need to add to your webpack chain to do so.

vue.config.js

module.exports = {
  chainWebpack(config) {
    config.plugins.delete('provide-webextension-polyfill');
    config.module.rules.delete('provide-webextension-polyfill');
  },
};

Testing

This library is following the standard styling of vue projects, and those are really the only tests to perform.

yarn test

Roadmap

Credits