Add WebP-Support (#2336)

* add webp support
minor fixes

build.browser.conf.js

@@ -18,6 +18,7 @@ import './src/modules/outline';
 import './src/modules/png_support';
 import './src/modules/gif_support';
 import './src/modules/bmp_support';
+import './src/modules/webp_support';
 import './src/modules/setlanguage';
 import './src/modules/split_text_to_size';
 import './src/modules/standard_fonts_metrics';

build.js

@@ -47,7 +47,7 @@ function bundle(options) {
   }).then((bundle) => {
     return bundle.generate({
       format: options.format,
-      name: 'jsPDF'
+	  name: 'jsPDF'
     })
   }).then(output => {
     let code = output.code

package.json

@@ -60,7 +60,9 @@
     "markdown": "0.5.0",
     "rollup": "0.68.2",
     "rollup-plugin-babel": "4.3.1",
+    "rollup-plugin-buble": "^0.19.6",
     "rollup-plugin-node-resolve": "3.4.0",
+    "rollup-plugin-sizes": "^0.5.1",
     "uglify-js": "3.4.10"
   },
   "scripts": {

rollup.config.js

@@ -1,5 +1,7 @@
 const rollupResolve = require('rollup-plugin-node-resolve');
 const rollupBabel = require('rollup-plugin-babel');
+const buble = require('rollup-plugin-buble');
+const sizes = require('rollup-plugin-sizes');
 
 
 // Monkey patching filesaver and html2canvas
@@ -61,9 +63,12 @@ module.exports = {
 		'BMPDecoder.js': 'BmpDecoder',
 		'omggif.js': 'GifReader',
 		'JPEGEncoder.js': 'JPEGEncoder',
+		'webp_support.js': 'webp_support',
 		'html2pdf.js': 'html2pdf'
 		}),
-		rollupBabel()
+		rollupBabel(),
+		buble(),
+		sizes()
 	],
 	output: [
 		{
@@ -72,5 +77,5 @@ module.exports = {
 			file: './lib/index.js',
 			sourcemap: false
 		}
-	],
+	]
 }

src/libs/BMPDecoder.js

@@ -275,3 +275,6 @@ BmpDecoder.prototype.bit32 = function() {
 BmpDecoder.prototype.getData = function() {
   return this.data;
 };
+
+
+try { exports.BmpDecoder = BmpDecoder;} catch(e) { }  // CommonJS.

src/libs/JPEGEncoder.js

@@ -723,4 +723,6 @@ function JPEGEncoder(quality) {
 
 	init();
 
-};
+};
+
+try { exports.JPEGEncoder = JPEGEncoder;} catch(e) { }  // CommonJS.