97 lines
1.8 KiB
JavaScript
97 lines
1.8 KiB
JavaScript
/**
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* @file ttf2woff
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* @author junmer
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*/
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/* eslint-env node */
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var isTtf = require('is-ttf');
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var through = require('through2');
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var ttf2woff = require('fonteditor-core').ttf2woff;
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var b2ab = require('b3b').b2ab;
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var ab2b = require('b3b').ab2b;
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var replaceExt = require('replace-ext');
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var deflate = require('pako').deflate;
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var _ = require('lodash');
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function compileTtf(buffer, options, cb) {
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var output;
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var ttf2woffOpts = {};
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if (options.deflate) {
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ttf2woffOpts.deflate = deflate;
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}
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try {
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output = ab2b(
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// fix: have problem in some android device, close deflate
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ttf2woff(
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b2ab(buffer),
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ttf2woffOpts
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)
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);
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}
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catch (ex) {
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cb(ex);
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}
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output && cb(null, output);
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}
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/**
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* ttf2woff fontmin plugin
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*
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* @param {Object} opts opts
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* @return {Object} stream.Transform instance
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* @api public
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*/
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module.exports = function (opts) {
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opts = _.extend({clone: true}, opts);
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return through.ctor({
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objectMode: true
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}, function (file, enc, cb) {
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// check null
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if (file.isNull()) {
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cb(null, file);
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return;
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}
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// check stream
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if (file.isStream()) {
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cb(new Error('Streaming is not supported'));
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return;
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}
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// check ttf
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if (!isTtf(file.contents)) {
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cb(null, file);
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return;
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}
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// clone
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if (opts.clone) {
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this.push(file.clone(false));
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}
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// replace ext
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file.path = replaceExt(file.path, '.woff');
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compileTtf(file.contents, opts, function (err, buffer) {
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if (err) {
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cb(err);
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return;
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}
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file.contents = buffer;
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cb(null, file);
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});
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});
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};
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