1 files changed, 38 insertions, 0 deletions
diff --git a/lib/output/modifiers/svgToPng.js b/lib/output/modifiers/svgToPng.js
new file mode 100644
index 0000000..4f8644a
--- /dev/null
+++ b/lib/output/modifiers/svgToPng.js
@@ -0,0 +1,38 @@
+var crc = require('crc');
+var path = require('path');
+
+var imagesUtil = require('../../utils/images');
+var fs = require('../../utils/fs');
+
+var editHTMLElement = require('./editHTMLElement');
+
+/**
+    Convert all SVG images to PNG
+
+    @param {String} rootFolder
+    @param {HTMLDom} $
+    @return {Promise}
+*/
+function svgToPng(rootFolder, $) {
+    return editHTMLElement($, 'img', function($img) {
+        var src = $img.attr('src');
+        if (path.extname(src) !== '.svg') {
+            return;
+        }
+
+        // We avoid generating twice the same PNG
+        var hash = crc.crc32(src).toString(16);
+        var fileName = hash + '.png';
+        var filePath = path.join(rootFolder, fileName);
+
+        return fs.assertFile(filePath, function() {
+            return imagesUtil.convertSVGToPNG(src, filePath);
+        })
+        .then(function() {
+            $img.replaceWith('<img src="/' + fileName + '" />');
+        });
+    });
+}
+
+
+module.exports = svgToPng;