directory adjust: delete entry index.js

packages/image-preview/index.js

@@ -1,3 +1,35 @@
-import ImagePreview from './src/image-preview.js';
+import Vue from 'vue';
+import ImagePreview from './image-preview';
 
-export default ImagePreview;
+let instance;
+
+const ImagePreviewConstructor = Vue.extend(ImagePreview);
+
+const initInstance = () => {
+  /* istanbul ignore if */
+  if (Vue.prototype.$isServer) return;
+  instance = new ImagePreviewConstructor({
+    el: document.createElement('div')
+  });
+};
+
+var ImagePreviewBox = images => {
+  /* istanbul ignore if */
+  if (Vue.prototype.$isServer) return;
+  if (!instance) {
+    initInstance();
+  }
+
+  /* istanbul ignore else */
+  if (!instance.value) {
+    instance.images = images;
+
+    document.body.appendChild(instance.$el);
+
+    Vue.nextTick(() => {
+      instance.value = true;
+    });
+  }
+};
+
+export default ImagePreviewBox;