You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
2.6 KiB
91 lines
2.6 KiB
4 years ago
|
'use strict';
|
||
|
|
|
||
|
|
/**
|
||
|
|
* SVGO is a Nodejs-based tool for optimizing SVG vector graphics files.
|
||
|
|
*
|
||
|
|
* @see https://github.com/svg/svgo
|
||
|
|
*
|
||
|
|
* @author Kir Belevich <kir@soulshine.in> (https://github.com/deepsweet)
|
||
|
|
* @copyright © 2012 Kir Belevich
|
||
|
|
* @license MIT https://raw.githubusercontent.com/svg/svgo/master/LICENSE
|
||
|
|
*/
|
||
|
|
|
||
|
|
var CONFIG = require('./svgo/config.js'),
|
||
|
|
SVG2JS = require('./svgo/svg2js.js'),
|
||
|
|
PLUGINS = require('./svgo/plugins.js'),
|
||
|
|
JSAPI = require('./svgo/jsAPI.js'),
|
||
|
|
encodeSVGDatauri = require('./svgo/tools.js').encodeSVGDatauri,
|
||
|
|
JS2SVG = require('./svgo/js2svg.js');
|
||
|
|
|
||
|
|
var SVGO = function(config) {
|
||
|
|
this.config = CONFIG(config);
|
||
|
|
};
|
||
|
|
|
||
|
|
SVGO.prototype.optimize = function(svgstr, info) {
|
||
|
|
info = info || {};
|
||
|
|
return new Promise((resolve, reject) => {
|
||
|
|
if (this.config.error) {
|
||
|
|
reject(this.config.error);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
var config = this.config,
|
||
|
|
maxPassCount = config.multipass ? 10 : 1,
|
||
|
|
counter = 0,
|
||
|
|
prevResultSize = Number.POSITIVE_INFINITY,
|
||
|
|
optimizeOnceCallback = (svgjs) => {
|
||
|
|
if (svgjs.error) {
|
||
|
|
reject(svgjs.error);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
info.multipassCount = counter;
|
||
|
|
if (++counter < maxPassCount && svgjs.data.length < prevResultSize) {
|
||
|
|
prevResultSize = svgjs.data.length;
|
||
|
|
this._optimizeOnce(svgjs.data, info, optimizeOnceCallback);
|
||
|
|
} else {
|
||
|
|
if (config.datauri) {
|
||
|
|
svgjs.data = encodeSVGDatauri(svgjs.data, config.datauri);
|
||
|
|
}
|
||
|
|
if (info && info.path) {
|
||
|
|
svgjs.path = info.path;
|
||
|
|
}
|
||
|
|
resolve(svgjs);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
this._optimizeOnce(svgstr, info, optimizeOnceCallback);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
SVGO.prototype._optimizeOnce = function(svgstr, info, callback) {
|
||
|
|
var config = this.config;
|
||
|
|
|
||
|
|
SVG2JS(svgstr, function(svgjs) {
|
||
|
|
if (svgjs.error) {
|
||
|
|
callback(svgjs);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
svgjs = PLUGINS(svgjs, info, config.plugins);
|
||
|
|
|
||
|
|
callback(JS2SVG(svgjs, config.js2svg));
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
/**
|
||
|
|
* The factory that creates a content item with the helper methods.
|
||
|
|
*
|
||
|
|
* @param {Object} data which passed to jsAPI constructor
|
||
|
|
* @returns {JSAPI} content item
|
||
|
|
*/
|
||
|
|
SVGO.prototype.createContentItem = function(data) {
|
||
|
|
return new JSAPI(data);
|
||
|
|
};
|
||
|
|
|
||
|
|
SVGO.Config = CONFIG;
|
||
|
|
|
||
|
|
module.exports = SVGO;
|
||
|
|
// Offer ES module interop compatibility.
|
||
|
|
module.exports.default = SVGO;
|