Uploader: optimize template

packages/uploader/index.vue

@@ -1,57 +1,54 @@
 <template>
   <div class="van-uploader">
     <slot></slot>
-    <template v-if="disabled">
-      <input type="file" @change="onValueChange" disabled="disabled" class="van-uploader__input" />
-    </template>
-    <template v-else>
-      <input type="file" @change="onValueChange"  class="van-uploader__input" ref="input" />
-    </template>
+    <input type="file" @change="onValueChange" :disabled="disable" class="van-uploader__input" ref="input" />
   </div>
 </template>
 
 <script>
-  export default {
-    name: 'van-uploader',
-    props: {
-      disabled: {
-        type: Boolean,
-        default: false
-      },
-      beforeRead: Function,
-      afterRead: Function,
-      resultType: {
-        type: String,
-        default: 'dataUrl',
-        validator(value) {
-          return value === 'dataUrl' || value === 'text';
-        }
-      }
+export default {
+  name: 'van-uploader',
+
+  props: {
+    disable: {
+      type: Boolean,
+      default: false
     },
-    methods: {
-      onValueChange(event) {
-        if (this.disabled) {
-          return;
-        }
-        var files = event.target.files;
-        var file = files[0];
-        if (!file) return;
-        if (this.beforeRead && !this.beforeRead(file)) return;
-        var reader = new FileReader();
-        reader.onload = (e) => {
-          this.afterRead && this.afterRead(
-            {
-              file: file,
-              content: e.target.result
-            });
-          this.$refs.input && (this.$refs.input.value = '');
-        };
-        if (this.resultType === 'dataUrl') {
-          reader.readAsDataURL(file);
-        } else if (this.resultType === 'text') {
-          reader.readAsText(file);
-        }
+    beforeRead: Function,
+    afterRead: Function,
+    resultType: {
+      type: String,
+      default: 'dataUrl',
+      validator: value => value === 'dataUrl' || value === 'text'
+    }
+  },
+
+  methods: {
+    onValueChange(event) {
+      if (this.disable) {
+        return;
+      }
+
+      const file = event.target.files[0];
+      if (!file || (this.beforeRead && !this.beforeRead(file))) {
+        return;
+      }
+
+      const reader = new FileReader();
+      reader.onload = (e) => {
+        this.afterRead && this.afterRead({
+          file,
+          content: e.target.result
+        });
+        this.$refs.input && (this.$refs.input.value = '');
+      };
+
+      if (this.resultType === 'dataUrl') {
+        reader.readAsDataURL(file);
+      } else if (this.resultType === 'text') {
+        reader.readAsText(file);
       }
     }
-  };
+  }
+};
 </script>