fix(calls): the call-failed screen gets a Try again button (#301)

"The call failed to load… try again" only offered Back, so the user had
to back out and press Join again. Try again starts a fresh embed for
the same room with the same mic/camera/sound (which disposes the hung
one); Back stays as the secondary action.

Fixes #301

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5

package-lock.json

@@ -81,7 +81,7 @@
       },
       "devDependencies": {
         "@axe-core/playwright": "4.13.0",
-        "@lotusguild/element-call-embedded": "0.25.0-lotus.23",
+        "@lotusguild/element-call-embedded": "0.25.0-lotus.22",
         "@playwright/test": "1.63.0",
         "@rollup/plugin-inject": "5.0.5",
         "@rollup/plugin-wasm": "6.2.2",
@@ -2695,9 +2695,9 @@
       "integrity": "sha512-dfLbk+PwWvFzSxwk3n5ySL0hfBog779o8h68wK/7/APo/7cgyWp5jcXockbxdk5kFRkbeXWm4Fbi9FrdN381sA=="
     },
     "node_modules/@lotusguild/element-call-embedded": {
-      "version": "0.25.0-lotus.23",
-      "resolved": "https://code.lotusguild.org/api/packages/LotusGuild/npm/%40lotusguild%2Felement-call-embedded/-/0.25.0-lotus.23/element-call-embedded-0.25.0-lotus.23.tgz",
-      "integrity": "sha512-vRmcWeJcU0Accyl2x3mqNEzrIe8djE5BekyYbYOSCsMflC98rZgD1mO7KOe7bA1cX7gparRf6sAt1fotHoU+bA==",
+      "version": "0.25.0-lotus.22",
+      "resolved": "https://code.lotusguild.org/api/packages/LotusGuild/npm/%40lotusguild%2Felement-call-embedded/-/0.25.0-lotus.22/element-call-embedded-0.25.0-lotus.22.tgz",
+      "integrity": "sha512-AimDKZA4xUKEEyl2XUFUSUDl03tBKFv88T/3igKyH2VqNSPMGnqcQJC5HXIkHLTWrOmg8kLcJ//FFbqlUZiLcA==",
       "dev": true
     },
     "node_modules/@matrix-org/matrix-sdk-crypto-wasm": {

package.json

@@ -108,7 +108,7 @@
   },
   "devDependencies": {
     "@axe-core/playwright": "4.13.0",
-    "@lotusguild/element-call-embedded": "0.25.0-lotus.23",
+    "@lotusguild/element-call-embedded": "0.25.0-lotus.22",
     "@playwright/test": "1.63.0",
     "@rollup/plugin-inject": "5.0.5",
     "@rollup/plugin-wasm": "6.2.2",

src/app/features/call/CallView.tsx

@@ -6,12 +6,13 @@ import {
   useCallJoined,
   useCallEmbedPlacementSync,
   useCallLoadError,
+  useCallStart,
 } from '../../hooks/useCallEmbed';
 import { callEmbedAtom } from '../../state/callEmbed';
 import { ContainerColor } from '../../styles/ContainerColor.css';
 import { PrescreenControls } from './PrescreenControls';
 import { usePowerLevelsContext } from '../../hooks/usePowerLevels';
-import { useRoom } from '../../hooks/useRoom';
+import { useIsDirectRoom, useRoom } from '../../hooks/useRoom';
 import { useRoomCreators } from '../../hooks/useRoomCreators';
 import { useRoomPermissions } from '../../hooks/useRoomPermissions';
 import { useMatrixClient } from '../../hooks/useMatrixClient';
@@ -160,6 +161,16 @@ function CallLoadErrorMessage() {
   // prescreen, where they can choose to join again.
   const dismiss = () => setCallEmbed(undefined);
 
+  // [Gitea #301] Try again: start a fresh embed for the same room with the
+  // same mic/camera/sound choices (starting one disposes the hung one).
+  const callEmbed = useCallEmbed();
+  const startCall = useCallStart(useIsDirectRoom());
+  const retry = () => {
+    if (!callEmbed) return;
+    const { room, control } = callEmbed;
+    startCall(room, { microphone: control.microphone, video: control.video, sound: control.sound });
+  };
+
   return (
     <Box
       className={css.CallViewContent}
@@ -173,6 +184,9 @@ function CallLoadErrorMessage() {
         The call failed to load. Check your connection and try again.
       </Text>
       <Box gap="200" alignItems="Center">
+        <Button variant="Primary" size="300" radii="400" onClick={retry} disabled={!callEmbed}>
+          <Text size="B400">Try again</Text>
+        </Button>
         <Button variant="Secondary" fill="Soft" size="300" radii="400" onClick={dismiss}>
           <Text size="B400">Back</Text>
         </Button>

src/app/plugins/call/CallEmbed.ts

@@ -31,7 +31,6 @@ import { verifyDenoiseAssets } from './denoiseSmokeCheck';
 import { canDelegateCapability } from './utils';
 import { getCallPageUrl } from './callPageUrl';
 import { restrictWidgetMessages } from '../widgetTransport';
-import { isRingableRoom } from '../../utils/callRing';
 
 // Maximum time to wait for the embedded Element Call iframe to progress from
 // initial load to a ready/joined state. If it hasn't by then, we assume the
@@ -252,18 +251,8 @@ export class CallEmbed {
       verifyDenoiseAssets(denoiseModel).catch(() => undefined);
     }
 
-    // [Gitea #295] Only ask Element Call to notify where a call can ring at all
-    // (DMs, invite-only groups outside a space). In a voice channel or space
-    // room the notification carries an @room mention, so every member got a
-    // highlighted ping (and phone push) whenever a moderator hopped in, and
-    // other clients showed it as a missed call.
-    // `none` needs element-call-embedded ≥ 0.25.0-lotus.23 (older builds ignore it).
     if (CallEmbed.startingCall(intent)) {
-      let notify = 'none';
-      if (isRingableRoom(room, CallEmbed.dmCall(intent))) {
-        notify = CallEmbed.dmCall(intent) ? 'ring' : 'notification';
-      }
-      params.append('sendNotificationType', notify);
+      params.append('sendNotificationType', CallEmbed.dmCall(intent) ? 'ring' : 'notification');
     }
 
     // [Gitea #43] On its own origin when config.json sets elementCallUrl.