From 39c1653d901cf792d804e015ea18c0172adc2568 Mon Sep 17 00:00:00 2001
From: EnixCoda <enixcoda@gmail.com>
Date: Sat, 19 May 2018 14:57:15 +0800
Subject: [PATCH] fix: blank file explorer when accessing non-exist file

---
 src/components/FileExplorer.js     | 8 +++++---
 src/utils/visibleNodesGenerator.js | 1 +
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/components/FileExplorer.js b/src/components/FileExplorer.js
index 8170eb5..57ea266 100644
--- a/src/components/FileExplorer.js
+++ b/src/components/FileExplorer.js
@@ -32,9 +32,11 @@ export default class List extends preact.Component {
     this.tasksAfterRender.push(DOMHelper.focusSearchInput)
     if (currentPath.length) {
       const nodeExpandedTo = this.visibleNodesGenerator.expandTo(currentPath)
-      this.visibleNodesGenerator.focusNode(nodeExpandedTo)
-      const { nodes } = this.visibleNodesGenerator.visibleNodes
-      this.tasksAfterRender.push(() => DOMHelper.scrollToNodeElement(nodes.indexOf(nodeExpandedTo)))
+      if (nodeExpandedTo) {
+        this.visibleNodesGenerator.focusNode(nodeExpandedTo)
+        const { nodes } = this.visibleNodesGenerator.visibleNodes
+        this.tasksAfterRender.push(() => DOMHelper.scrollToNodeElement(nodes.indexOf(nodeExpandedTo)))
+      }
     }
     this.updateVisibleNodes()
   }
diff --git a/src/utils/visibleNodesGenerator.js b/src/utils/visibleNodesGenerator.js
index eda22ee..53a4c66 100644
--- a/src/utils/visibleNodesGenerator.js
+++ b/src/utils/visibleNodesGenerator.js
@@ -97,6 +97,7 @@ export default class VisibleNodesGenerator {
     for (const step of path) {
       targetPath = rootNode.path ? `${rootNode.path}/${step}` : step
       rootNode = rootNode.contents.find(node => node.path === targetPath)
+      if (!rootNode) return
       this.setExpand(rootNode, true)
     }
     return rootNode