From 8300fad52b7d80f291d3e607ebfd66bc7c2d297a Mon Sep 17 00:00:00 2001
From: Suwijak Chaipipat <ppnk2537@gmail.com>
Date: Thu, 22 Sep 2016 22:57:33 +0700
Subject: [PATCH] Prevent backspace to move selection into table-cell (#345)

---
 examples/tables/index.js | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/examples/tables/index.js b/examples/tables/index.js
index 82ca34111..18fa6c62c 100644
--- a/examples/tables/index.js
+++ b/examples/tables/index.js
@@ -100,6 +100,20 @@ class Tables extends React.Component {
    */
 
   onKeyDown = (e, data, state) => {
+    const { document, selection } = state
+    const { startKey } = selection
+    const startNode = document.getDescendant(startKey)
+
+    if (selection.isAtStartOf(startNode)) {
+      const previous = document.getPreviousText(startNode)
+      const prevBlock = document.getClosestBlock(previous)
+
+      if (prevBlock.type == 'table-cell') {
+        e.preventDefault()
+        return state
+      }
+    }
+
     if (state.startBlock.type != 'table-cell') return
     switch (data.key) {
       case 'backspace': return this.onBackspace(e, state)