Fix Slate error when deselecting text in Chrome

When selecting text right-to-left and clicking outside the
contenteditable to deselect, Chrome triggers toSlateRange with a
selection pointing outside the editor, causing an error. This
workaround catches the error and returns the current editor selection,
mimicking the upstream suppressThrow fix (ianstormtaylor/slate#4584).

Author: tf

entry_types/scrolled/package/src/frontend/inlineEditing/EditableText/index.js

@@ -4,6 +4,7 @@ import {createEditor, Transforms, Node, Text as SlateText, Range} from 'slate';
 import {Slate, Editable, withReact, ReactEditor} from 'slate-react';
 import {withHistory} from 'slate-history';
 
+import '../slateFixes';
 import {Text} from '../../Text';
 import {useCachedValue} from '../useCachedValue';
 import {useContentElementEditorCommandSubscription} from '../../useContentElementEditorCommandSubscription';

entry_types/scrolled/package/src/frontend/inlineEditing/slateFixes.js

@@ -0,0 +1,18 @@
+import {ReactEditor} from 'slate-react';
+
+const originalToSlateRange = ReactEditor.toSlateRange;
+
+ReactEditor.toSlateRange = function(editor, domRange) {
+  try {
+    return originalToSlateRange.apply(this, arguments);
+  } catch (e) {
+    if (e.message.startsWith('Cannot resolve a Slate point from DOM point') &&
+        domRange === window.getSelection() &&
+        editor.selection) {
+      console.warn('Ignored "Cannot resolve a Slate point from DOM point" - selection outside editor');
+      return editor.selection;
+    }
+
+    throw e;
+  }
+}