From 1a035ca168c8f3dbe749801297e794f894e0840a Mon Sep 17 00:00:00 2001
From: Jan Prochazka <jan.prochazka@gmail.com>
Date: Thu, 31 Mar 2022 16:01:06 +0200
Subject: [PATCH] #254 tab navigation in datagrid

---
 packages/web/src/datagrid/DataGridCore.svelte | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/packages/web/src/datagrid/DataGridCore.svelte b/packages/web/src/datagrid/DataGridCore.svelte
index 831245bdd..86f641578 100644
--- a/packages/web/src/datagrid/DataGridCore.svelte
+++ b/packages/web/src/datagrid/DataGridCore.svelte
@@ -1139,7 +1139,7 @@
 
     handleCursorMove(event);
 
-    if (event.shiftKey && event.keyCode != keycodes.shift) {
+    if (event.shiftKey && event.keyCode != keycodes.shift && event.keyCode != keycodes.tab) {
       selectedCells = getCellRange(shiftDragStartCell || currentCell, currentCell);
     }
   }
@@ -1188,6 +1188,21 @@
           return moveCurrentCell(currentCell[0] - visibleRowCountLowerBound, currentCell[1], event);
         case keycodes.pageDown:
           return moveCurrentCell(currentCell[0] + visibleRowCountLowerBound, currentCell[1], event);
+        case keycodes.tab: {
+          if (event.shiftKey) {
+            if (currentCell[1] > 0) {
+              return moveCurrentCell(currentCell[0], currentCell[1] - 1, event);
+            } else {
+              return moveCurrentCell(currentCell[0] - 1, columnSizes.realCount - 1, event);
+            }
+          } else {
+            if (currentCell[1] < columnSizes.realCount - 1) {
+              return moveCurrentCell(currentCell[0], currentCell[1] + 1, event);
+            } else {
+              return moveCurrentCell(currentCell[0] + 1, 0, event);
+            }
+          }
+        }
       }
     }
     return null;