fix slab#1029

tim-mc · Dec 12, 2016 · 24b4d8b · 24b4d8b
1 parent fbde315
commit 24b4d8b
Showing 1 changed file with 7 additions and 5 deletions.
diff --git a/core/quill.js b/core/quill.js
@@ -377,12 +377,14 @@ function modify(source, index, shift, modifier) {
   }
   let range = this.getSelection();
   change = modifier();
-  if (shift === null) {
-    range = shiftRange(range, index, change, source);
-  } else if (shift !== 0) {
-    range = shiftRange(range, index, shift, source);
+  if (range != null) {
+    if (shift === null) {
+      range = shiftRange(range, index, change, source);
+    } else if (shift !== 0) {
+      range = shiftRange(range, index, shift, source);
+    }
+    this.setSelection(range, Emitter.sources.SILENT);
   }
-  this.setSelection(range, Emitter.sources.SILENT);
   return change;
 }