- tree shake IntersectionObserver

- add childrenLength to expanding list item
- update dependencies

Author: derpdead

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "vue-windowing",
-  "version": "0.11.0",
+  "version": "0.12.0",
   "description": "Set of components used for virtualizing DOM",
   "author": {
     "name": "Maciej Kaczorowski",
@@ -46,12 +46,12 @@
     "@vue/cli-plugin-babel": "^4.5.10",
     "@vue/cli-service": "^4.5.10",
     "eslint-plugin-import": "^2.22.1",
-    "@vue/eslint-config-airbnb": "^5.1.0",
-    "eslint": "^7.17.0",
+    "@vue/eslint-config-airbnb": "^5.3.0",
+    "eslint": "^7.18.0",
     "eslint-plugin-vue": "^7.4.1",
     "cross-env": "^7.0.3",
     "minimist": "^1.2.5",
-    "rollup": "^2.36.1",
+    "rollup": "^2.37.1",
     "style-loader": "^2.0.0",
     "node-sass": "^5.0.0",
     "sass-loader": "^10.1.1",

package.json

@@ -1,5 +1,6 @@
 export { default as VirtualScroll } from './VirtualScroll.vue';
 export { default as ResizeObserver } from './ResizeObserver.vue';
+export { default as IntersectionObserver } from './IntersectionObserver.vue';
 export { default as AutoHeightMeasurer } from './AutoHeightMeasurer.vue';
 export { default as ExpandingList } from './ExpandingList.vue';
 export { default as NestedList } from './NestedList.vue';

src/components/index.js

@@ -11,6 +11,7 @@ export const getFlattenedItems = ({
     flattenedItems.push({
       ...rest,
       level,
+      childrenLength: children.length,
     });
 
     flattenedItems.push(...getFlattenedItems({ items: children, level: level + 1 }));
@@ -41,6 +42,7 @@ export const getExpandingFlattenedItems = ({
       expanded: isExpanded,
       rootId,
       rootIndex,
+      childrenLength: children.length,
     });
 
     flattenedItems.push(...getExpandingFlattenedItems({