Merge pull request #8 from posthtml/milestone-1.4.0

Milestone 1.4.0

Author: Scrum

README.md

@@ -49,11 +49,18 @@ After:
 
 #### `replaceExtension`
 
-Type: `boolean`  
+Type: `Boolean`  
 Default: `false`  
 Description: *Replace the extension of the source image with .webp instead of appending .webp to the original filename*  
 Example: `image.jpg => image.webp (instead of image.jpg.webp)`
 
+#### `classIgnore`
+
+Type: `Array<string>`  
+Default: `[]`  
+Description: *list of classes for which the transformation will be ignored*  
+Example: `image.jpg => image.webp (instead of image.jpg.webp)`
+
 ### License [MIT](LICENSE)
 
 [npm]: https://img.shields.io/npm/v/posthtml-webp.svg

changelog.md

@@ -1,5 +1,17 @@
+## 1.4.0 (2019-10-22)
+
+* docs: for ignore ([15953c7](https://github.com/posthtml/posthtml-webp/commit/15953c7))
+* feat: ignore, close #21 ([735ed05](https://github.com/posthtml/posthtml-webp/commit/735ed05)), closes [#21](https://github.com/posthtml/posthtml-webp/issues/21)
+* test: for ignore, issue #21 ([4fa4423](https://github.com/posthtml/posthtml-webp/commit/4fa4423)), closes [#21](https://github.com/posthtml/posthtml-webp/issues/21)
+* perf: process ([433d79c](https://github.com/posthtml/posthtml-webp/commit/433d79c))
+* build: update depDev ([c6073ba](https://github.com/posthtml/posthtml-webp/commit/c6073ba))
+
+
+
 ## 1.3.0 (2019-09-26)
 
+* chore: v1.3.0 ([b7c29c6](https://github.com/posthtml/posthtml-webp/commit/b7c29c6))
+* build: update changelog ([a968946](https://github.com/posthtml/posthtml-webp/commit/a968946))
 * feat: multi srcset, close #5 ([b31efc6](https://github.com/posthtml/posthtml-webp/commit/b31efc6)), closes [#5](https://github.com/posthtml/posthtml-webp/issues/5)
 * docs: simple update ([cc7079e](https://github.com/posthtml/posthtml-webp/commit/cc7079e))
 * test: for issue #5 ([9b63e67](https://github.com/posthtml/posthtml-webp/commit/9b63e67)), closes [#5](https://github.com/posthtml/posthtml-webp/issues/5)

lib/index.js

@@ -5,19 +5,26 @@ module.exports = function (options) {
     options = {}
   }
 
+  if (!options.classIgnore) {
+    options.classIgnore = []
+  }
+
   if (options.replaceExtension === undefined) {
     options.replaceExtension = false
   }
 
   return function posthtmlWebp (tree) {
-    tree.match({ tag: 'img' }, function (imgNode) {
-      if (imgNode.skip) return imgNode
-      return getPicture(imgNode, options)
-    })
-
-    tree.match({ tag: 'amp-img' }, function (imgNode) {
+    tree.match([{ tag: 'img' }, { tag: 'amp-img' }], function (imgNode) {
       if (imgNode.skip) return imgNode
-      return getAmpPicture(imgNode, options)
+      var classes = imgNode.attrs && imgNode.attrs.class && (imgNode.attrs.class.split(' ') || [])
+      var isIgnore = options.classIgnore.filter(className => classes.includes(className)).length > 0
+      if (isIgnore) return imgNode
+      switch (imgNode.tag) {
+        case 'amp-img':
+          return getAmpPicture(imgNode, options)
+        default:
+          return getPicture(imgNode, options)
+      }
     })
 
     return tree