mirror of https://github.com/jkjoy/sunpeiwen.git
69 lines
1.3 KiB
JavaScript
69 lines
1.3 KiB
JavaScript
/*!
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* nib
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* Copyright (c) 2010 TJ Holowaychuk <tj@vision-media.ca>
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* MIT Licensed
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*/
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/**
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* Module dependencies.
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*/
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var stylus = require('stylus'),
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path = require('path'),
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nodes = stylus.nodes,
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utils = stylus.utils,
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Canvas;
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exports = module.exports = plugin;
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// conditionally expose canvas-based APIs.
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try {
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Canvas = require('canvas');
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var gradient = require('./nodes/gradient'),
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colorImage = require('./nodes/color-image');
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} catch (err) {
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// ignore
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}
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/**
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* Library version.
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*/
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exports.version = require(path.join(__dirname, '../package.json')).version;
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/**
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* Stylus path.
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*/
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exports.path = __dirname;
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/**
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* Return the plugin callback for stylus.
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*
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* @return {Function}
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* @api public
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*/
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function plugin() {
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return function(style){
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style.include(__dirname);
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if (Canvas) {
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style.define('has-canvas', nodes.true);
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// gradients
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style.define('create-gradient-image', gradient.create);
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style.define('gradient-data-uri', gradient.dataURL);
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style.define('add-color-stop', gradient.addColorStop);
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// color images
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style.define('create-color-image', colorImage.create);
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style.define('color-data-uri', colorImage.dataURL);
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} else {
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style.define('has-canvas', nodes.false);
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}
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};
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}
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