sysutils/svgo
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make passes to be independent from each other

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dfilatov
2014-11-05 16:58:20 +03:00
parent b11840ccc8
commit 30237018ef
1 changed files with 29 additions and 12 deletions
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41
lib/svgo.js
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@ -24,6 +24,33 @@ var SVGO = module.exports = function(config) {
SVGO.prototype.optimize = function(svgstr, callback) {
var _this = this,
config = this.config,
maxPassCount = config.multipass ? 10 : 1,
counter = 0,
prevResultSize = Number.POSITIVE_INFINITY,
optimizeOnceCallback = function(svgjs) {
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);
};
SVGO.prototype._optimizeOnce = function(svgstr, callback) {
var config = this.config;
SVG2JS(svgstr, function(svgjs) {
@ -33,24 +60,14 @@ SVGO.prototype.optimize = function(svgstr, callback) {
return;
}
var svg = { data : null },
maxIterationCount = config.multipass ? 10 : 1,
counter = 0,
prevResult;
svgjs = PLUGINS(svgjs, config.plugins);
do {
prevResult = svg;
svgjs = PLUGINS(svgjs, config.plugins);
svg = JS2SVG(svgjs, config.js2svg);
} while(++counter < maxIterationCount && prevResult.data !== svg.data);
callback(svg);
callback(JS2SVG(svgjs, config.js2svg));
});
};
/**
* The factory that creates a content item with the helper methods.
*