/inline_svg

Embed SVG documents in your Rails views and style them with CSS

Primary LanguageRubyMIT LicenseMIT

Inline SVG

Styling a SVG document with CSS for use on the web is most reliably achieved by adding classes to the document and embedding it inline in the HTML.

This gem is a little helper method (inline_svg) that reads an SVG document from a Rails image directory, applies a CSS class attribute to the root of the document and then embeds it into a view.

Changelog

All notable changes to this project are documented in the CHANGELOG.

Installation

Add this line to your application's Gemfile:

gem 'inline_svg'

And then execute:

$ bundle

Or install it yourself as:

$ gem install inline_svg

Usage

inline_svg(file_name, options={})

The file_name can be a full path to a file, or just the file's basename. The actual path of the file on disk is resolved using Sprockets, which means you can pre-process and fingerprint your SVG files like any other Rails asset.

Here's an example of embedding an SVG document and applying a 'class' attribute in HAML:

 !!! 5 
  %html
    %head
      %title Embedded SVG Documents
    %body
      %h1 Embedded SVG Documents
      %div
        = inline_svg "some-document.svg", class: 'some-class'

Here's some CSS to target the SVG, resize it and turn it an attractive shade of blue:

.some-class {
  display: block;
  margin: 0 auto;
  fill: #3498db;
  width: 5em;
  height: 5em;
}

Options

  • class: set a CSS class attribute on the SVG
  • size: set width and height attributes on the SVG
    • Supplied as "{Width} * {Height}" or "{Number}", so "30px*45px" becomes width="30px" and height="45px", and "50%" becomes width="50%" and height="50%"
  • title: add a <title> node inside the top level of the SVG document
  • desc: add a <desc> node inside the top level of the SVG document
  • nocomment: remove comment tags (and other unsafe/unknown tags) from svg (uses the Loofah gem)

Example:

inline_svg("some-document.svg", class: 'some-class', size: '30% * 20%', title: 'Some Title', desc:
'Some interesting description', nocomment: true)

Contributing

  1. Fork it ( http://github.com/jamesmartin/inline_svg/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request

Please write tests for anything you change, add or fix. There is a basic Rails app that demonstrates the gem's functionality in use.