reset cover size

@@ -9,7 +9,7 @@
       <div class="wf-item-mid">
         <router-link :to="link(i)">
           <div class="layer-image" :style="{'height': i.coverHeight + 'px'}">
-            <ImageFormat v-if="!i._temporary" :src="i[srcKey]" :width="coverImageWidth" :height="i.coverHeight"></ImageFormat>
+            <ImageFormat v-if="!i._temporary" :mode="1" :src="i[srcKey]" :width="coverImageWidth" :height="i.coverHeight"></ImageFormat>
           </div>
           <div class="description">
             <p>{{i.content}}</p>
@@ -35,6 +35,7 @@
 
 <script>
 import {assign, get, forEach} from 'lodash';
+import {getArticleImageSize} from 'utils/image-handler';
 
 export default {
   data() {
@@ -121,6 +122,12 @@ export default {
       for (let i = this.calcIndex; i < this.list.length; i++) {
         let item = this.list[i];
 
+        let {width, height} = getArticleImageSize({
+          width: item.imageWidth,
+          height: item.imageHeight
+        });
+
+        item = assign(item, {imageWidth: width, imageHeight: height});
         item.coverHeight = Math.floor(item.imageHeight / item.imageWidth * this.coverImageWidth);
 
         nlist.push(assign({_temporary: true}, item));