ember-svg-jar

Best way to use SVG images in Ember apps.

Table of Contents

• Table of Contents
• Features
• Installation
• Start in 3 easy steps
• Usage in an app
  • Assets from Node modules
• Usage in an addon
• Configuration
  • Helper
• Compatibility
• FAQ
• Why does this matter?
  • SVG vs icon fonts
  • Switching from Font Awesome
• Contributing
• Asset viewer
• License

Features

• Visual workflow to find and use SVGs the fastest way possible
• Automatic SVG optimization (it can cut file size by half or more)
• Zero configuration
• Easy to use helper {{svg-jar "asset-name"}}
• Support for both inline and symbol embedding methods

Installation

$ ember install ember-svg-jar

Start in 3 easy steps

• Drop some SVG images to the public directory (e.g. material-design-icons)
• Open the asset viewer and select any icon you like
• Copy the helper code from the viewer and paste it to your template

Click here to see the asset viewer demo.

Usage in an app

Place your SVG images to the public directory (e.g. ./public/images/my-icon.svg). Then copy the helper code for your image from the asset viewer or just write it by hand like this: {{svg-jar "my-icon"}}.

The viewer is available at: http://localhost:4200/ember-svg-jar/index.html

If your rootURL is not /, then to use the asset viewer you will need to add rootURL to the addon config.

Assets from Node modules

By default ember-svg-jar looks for SVGs in the public directory. To get SVGs from node_modules packages or any other directory you will need to add them to ember-cli-build.js like this:

var app = new EmberApp(defaults, {
  svgJar: {
    sourceDirs: [
      'node_modules/material-design-icons/file/svg/design',
      'node_modules/material-design-icons/action/svg/design',
      'public/images/icons',
    ],
  },
});

Click here for more configuration options

Usage in an addon

Using ember-svg-jar in an addon is the same as in an app, except that in the package.json of the addon, it should be listed as one of the dependencies and not devDependencies.

Configuration

The addon should be useful without any configuration. But it wants to be very configurable when it's time to adjust it for your needs.

• All configuration options
• Advanced usage examples

Helper

Use the svg-jar helper to embed SVG images to your application's templates.

For the default inline embedding strategy you can write:

{{svg-jar "my-cool-icon" class="icon" width="24px"}}

The helper takes an asset ID and optional attributes that will be added to the created SVG element. The example above will create an SVG like this:

<svg class="icon" width="24px">...</svg>

For the symbol strategy you will need to add # to the asset ID like this:

{{svg-jar "#my-cool-icon"}}

In this case the result can look like this:

<svg><use xlink:href="#my-cool-icon"></use></svg>

Compatibility

Latest ember-svg-jar 1.X.X currently supports:

• Node 6.* || >= 8.*
• Ember >= 1.13.13

The old addon versions <= v0.12.0 are compatible with old Node and Ember 1.10.1 and beyond.

FAQ

Q: Will the asset viewer affect my production build size?
A: No, it won't at all. The asset viewer is included in development mode only.

Q: Can it find SVG icons outside of the public directory, e.g. from node_modules?
A: Yes, it can import SVGs from any directory defined in the sourceDirs array.

Q: Why the SVG files deployed into the dist/assets folder without being fingerprinted?
A: This is done with the default ember cli behaviour. For more information see SVG Fingerprinting.

Why does this matter?

SVG vs icon fonts

If you can go IE 9+ and Android 3+, SVG is a better solution than icon fonts. Also if your images are multi-coloured or involved in animation, you actually have to use SVG.

• Why GitHub switched from an icon font to SVG
• "Inline SVG vs icon fonts" from css-tricks
• Ten reasons to switch from an icon font to SVG

Switching from Font Awesome

• original Font Awesome is about 149 KB as TTF and 88.3 KB as WOFF
• it includes 634 icons and you need just some of them usually
• 20 Font Awesome icons in SVGJar will be about 4.3 KB (you save 84 KB or 145 KB as TTF)
• 50 Font Awesome icons in SVGJar will be about 9 KB

You can get Font Awesome icons as individual SVG files from font-awesome-svg:

git clone [e-mail]:ivanvotti/font-awesome-svg.git

Contributing

See the Contributing guide for details.

Asset viewer

The viewer is a separate Ember application, which repository can be found at this link.

License

This project is distributed under the MIT license.

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GitHub @ivanvotti  ·  Twitter @ivanvotti