also serialize to text and method to tell us if we need html for model

src/editor/html_serialize.js

@@ -1,14 +0,0 @@
-export function htmlSerialize(model) {
-    return model.parts.reduce((html, part) => {
-        switch (part.type) {
-            case "newline":
-                return html + "<br />";
-            case "plain":
-            case "pill-candidate":
-                return html + part.text;
-            case "room-pill":
-            case "user-pill":
-                return html + `<a href="https://matrix.to/#/${part.resourceId}">${part.text}</a>`;
-        }
-    }, "");
-}

src/editor/serialize.js

@@ -0,0 +1,43 @@
+export function htmlSerialize(model) {
+    return model.parts.reduce((html, part) => {
+        switch (part.type) {
+            case "newline":
+                return html + "<br />";
+            case "plain":
+            case "pill-candidate":
+                return html + part.text;
+            case "room-pill":
+            case "user-pill":
+                return html + `<a href="https://matrix.to/#/${part.resourceId}">${part.text}</a>`;
+        }
+    }, "");
+}
+
+export function textSerialize(model) {
+    return model.parts.reduce((text, part) => {
+        switch (part.type) {
+            case "newline":
+                return text + "\n";
+            case "plain":
+            case "pill-candidate":
+                return text + part.text;
+            case "room-pill":
+            case "user-pill":
+                return text + `${part.resourceId}`;
+        }
+    }, "");
+}
+
+export function requiresHtml(model) {
+    return model.parts.some(part => {
+        switch (part.type) {
+            case "newline":
+            case "plain":
+            case "pill-candidate":
+                return false;
+            case "room-pill":
+            case "user-pill":
+                return true;
+        }
+    });
+}