sysutils/svgo
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Promisify SVGO

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This commit is contained in:
GreLI
2017-03-25 23:41:44 +03:00
parent e4be4bbc10
commit d74f6a0e2f
5 changed files with 32 additions and 48 deletions
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53
lib/svgo.js
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@ -17,44 +17,42 @@ var CONFIG = require('./svgo/config.js'),
JS2SVG = require('./svgo/js2svg.js');
var SVGO = module.exports = function(config) {
this.config = CONFIG(config);
};
SVGO.prototype.optimize = function(svgstr, callback) {
if (this.config.error) return callback(this.config);
SVGO.prototype.optimize = function(svgstr) {
return new Promise((resolve, reject) => {
if (this.config.error) {
reject(this.config.error);
return;
}
var _this = this,
config = this.config,
maxPassCount = config.multipass ? 10 : 1,
counter = 0,
prevResultSize = Number.POSITIVE_INFINITY,
optimizeOnceCallback = function(svgjs) {
var config = this.config,
maxPassCount = config.multipass ? 10 : 1,
counter = 0,
prevResultSize = Number.POSITIVE_INFINITY,
optimizeOnceCallback = (svgjs) => {
if (svgjs.error) {
reject(svgjs.error);
return;
}
if (svgjs.error) {
callback(svgjs);
return;
}
if (++counter < maxPassCount && svgjs.data.length < prevResultSize) {
prevResultSize = svgjs.data.length;
_this._optimizeOnce(svgjs.data, optimizeOnceCallback);
} else {
callback(svgjs);
}
};
_this._optimizeOnce(svgstr, optimizeOnceCallback);
if (++counter < maxPassCount && svgjs.data.length < prevResultSize) {
prevResultSize = svgjs.data.length;
this._optimizeOnce(svgjs.data, optimizeOnceCallback);
} else {
resolve(svgjs);
}
};
this._optimizeOnce(svgstr, optimizeOnceCallback);
});
};
SVGO.prototype._optimizeOnce = function(svgstr, callback) {
var config = this.config;
SVG2JS(svgstr, function(svgjs) {
if (svgjs.error) {
callback(svgjs);
return;
@ -63,7 +61,6 @@ SVGO.prototype._optimizeOnce = function(svgstr, callback) {
svgjs = PLUGINS(svgjs, config.plugins);
callback(JS2SVG(svgjs, config.js2svg));
});
};
@ -74,7 +71,5 @@ SVGO.prototype._optimizeOnce = function(svgstr, callback) {
* @returns {JSAPI} content item
*/
SVGO.prototype.createContentItem = function(data) {
return new JSAPI(data);
};