theo

Theo is theme tokenizer that works with JSON input to generate variables for:

• Sass
• Stylus
• Less
• Aura
• JSON targeting iOS
• XML targeting Android
• HTML documentation

API

var theo = require('theo');

theo.convert('./variables/*.json', './dist');

theo.convert(src, dest, [options])

src

Type: string

A glob pattern that matches at least on json theme file

dest

Type: string

A directory where all converted files will be output

options

Type: object

Additional options for the conversion

options.suffix

Type: string

A suffix to be appended to the file name

options.templates

Type: array

Default: ['scss', 'less', 'styl', 'theme', 'xml', 'android.xml', 'json', 'ios.json', 'html']

By default, all the default in templates will be used in the conversion. Use this property to dictate what templates get rendered.

theo.convert('./src', './dest', {
  templates: ['scss', 'less'] // Only output a .scss and .less file
});

options.templatesDirectory

Type: string

An additional search path that will be used before the default templates directory

// search "./my/templates" for "custom.hbs"
theo.convert('./src/*.json', './dest', {
  templatesDirectory: './my/templates'
  templates: ['custom']
});

// "./my/templates/scss.hbs" will be used instead of
// the provided "scss.hbs"
theo.convert('./src/*.json', './dest', {
  templatesDirectory: './my/templates'
  templates: ['scss']
});

options.extras

Type: object

This object will be globally available in each template.

theo.convert('./src/*.json', './dest', {
  extras: {
    foo: 'bar'
  }
});

<span>
  {{extras.foo}}
</span>

options.beforeTemplate(property)

Type: function

A function that will be called for each property in the theme. This an opportunity to modify / append new values to the property before rendering the template.

theo.convert('./src/*.json', './dest', {
  beforeTempate: function(property) {
    // property.name
    // property.value
    // property.category
    // Add another key/value
    property.custom = 'My custom value'
  }
});

{{#each properties}}
  {{name}} - {{value}} - {{custom}}
{{/each}}

Variables

The input glob ./variables/*.json in this examples should match at least one JSON file with the following format:

{
  "theme": {
    "name": "Name of the theme",
    "properties": [
      {
        "name":"COLOR_PRIMARY",
        "value":"#2a94d6",
        "category": "text-color",
        "comment": "Lorem ipsum"
      },
      {
        "name":"COLOR_LINK",
        "value":"#006eb3",
        "category": "text-color",
        "comment": "Lorem ipsum"
      }
    ]
  }
}

Aliases

Optionally theo also supports aliases:

{
  "theme": {
    "name": "Name of the theme",
    "aliases": [
      {
        "name": "blue",
        "value": "#2a94d6"
      }
    ],
    "properties": [
      {
        "name":"COLOR_PRIMARY",
        "value":"{!blue}",
        "category": "text-color",
        "comment": "Lorem ipsum"
      }
    ]
  }
}

Aliases can also be specified in a separate file:

theme.json

{
  "theme": {
    "name": "Name of the theme",
    "aliases": "./aliases.json",
    "properties": [
      {
        "name":"COLOR_PRIMARY",
        "value":"{!blue}",
        "category": "text-color",
        "comment": "Lorem ipsum"
      }
    ]
  }
}

aliases.json

{
  "aliases": [
    {
      "name": "blue",
      "value": "#2a94d6"
    }
  ]
}

You could also start by cloning one of the mock files.

Example Usage

$ npm install theo --save-dev

Gruntfile.coffee example:

theo = require 'theo'

module.exports = (grunt) ->
  grunt.registerTask 'default', ->
    theo.convert './variables/*.json', './dist'

gulpfile.coffee example:

gulp = require 'gulp'
theo = require 'theo'

gulp.task 'default', (done) ->
  theo.convert './variables/*.json', './dist'
  done()

Documentation

The generated HTML documentation supports the following categories:

• color
• text-color
• background-color
• border-color
• border-style
• font
• font-size
• line-height
• spacing
• drop-shadow
• inner-shadow
• hr-color
• radius
• gradient
• misc

This is an example of how the docs look like:

Develop & Test

To do test driven development you can run:

gulp tdd

This will execute all tests whenever you change any JavaScript file or template.

Before creating a pull request make sure to run the tests:

gulp

License

Copyright (c) 2014, salesforce.com, inc. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of salesforce.com, inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.