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Added functionality inline-svg-code #2069

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@lvl99 lvl99 commented Mar 17, 2016

I wanted a method to generate an inline SVG image that references SCSS variables within the CSS. I saw that inline-image existed, however that method only inlines an existing image located on the filesystem.

I wrote the inline-svg-code based on the insights found at CSS Tricks' "Probably Don’t Base64 SVG".

inline-svg-code takes a string containing <svg> code and encodes it into a url('data:image/svg+xml,...') string.

Example:

$color: #eeeeee;
.example {
  background-image: inline-svg-code('<svg width="100" height="10" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 10"><g fill="none" stroke="#{$color}" stroke-width="3"><path stroke-linecap="butt" d="M0,5 L100,5" /></g></svg>');
}

Will output:

.example {
  background-image: url('data:image/svg+xml,%3Csvg%20width%3D%22100%22%20height%3D%2210%22%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20viewBox%3D%220%200%20100%2010%22%3E%3Cg%20fill%3D%22none%22%20stroke%3D%22%23eeeeee%22%20stroke-width%3D%223%22%3E%3Cpath%20stroke-linecap%3D%22butt%22%20d%3D%22M0%2C5%20L100%2C5%22%20%2F%3E%3C%2Fg%3E%3C%2Fsvg%3E');
}

Additionally I wrote another method called inline-svg-code-to-png which takes a string containing <svg> code and converts it to a PNG file using RMagick and the inline_image method inline_image_string to place it within the CSS file as an inline PNG image encoded at base64. I've commented out this code in case requiring RMagick is too heavy duty for general compass use.

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4 participants