fix: toSlatePoint suppressThrow leaf without text node (#4813)

.changeset/kind-olives-add.md

@@ -0,0 +1,5 @@
+---
+'slate-react': patch
+---
+
+Don't throw in toSlatePoint while using supressThrow if leaf has no text node

packages/slate-react/src/plugin/react-editor.ts

@@ -491,7 +491,9 @@ export const ReactEditor = {
       // Calculate how far into the text node the `nearestNode` is, so that we
       // can determine what the offset relative to the text node is.
       if (leafNode) {
-        textNode = leafNode.closest('[data-slate-node="text"]')!
+        textNode = leafNode.closest('[data-slate-node="text"]')
+
+        if (textNode) {
           const window = ReactEditor.getWindow(editor)
           const range = window.document.createRange()
           range.setStart(textNode, 0)
@@ -518,6 +520,7 @@ export const ReactEditor = {
           // https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/10291116/
           offset = contents.textContent!.length
           domNode = textNode
+        }
       } else if (voidNode) {
         // For void nodes, the element with the offset key will be a cousin, not an
         // ancestor, so find it by going down from the nearest void parent.