Add a flag to messages if they can be replied to

Signed-off-by: Joas Schilling <coding@schilljs.com>

7 files changed, 19 insertions, 5 deletions

diff --git a/docs/capabilities.md b/docs/capabilities.md
index 4c253fcea..ae4904fc2 100644
--- a/docs/capabilities.md
+++ b/docs/capabilities.md
@@ -37,3 +37,7 @@ title: Capabilities
 * `chat-read-marker` - The chat can be optionally marked read by clients manually, independent from the loading of the chat messages.
 * `webinary-lobby` - See [Webinary management](webinary.md) for technical details.
 * `start-call-flag` - Only moderators or users might be able to start calls.
+
+
+## 8.0
+* `chat-replies` - Normal chat messages can now be replied to. Check the `isReplyable` parameter on the message object.
diff --git a/docs/chat.md b/docs/chat.md
index d0e36778c..ab1983dfb 100644
--- a/docs/chat.md
+++ b/docs/chat.md
@@ -43,6 +43,7 @@ Base endpoint is: `/ocs/v2.php/apps/spreed/api/v1`
         `timestamp` | int | Timestamp in seconds and UTC time zone
         `systemMessage` | string | empty for normal chat message or the type of the system message (untranslated)
         `messageType` | string | Currently known types are `comment`, `system` and `command`
+        `isReplyable` | bool | True if the user can post a reply to this message (only available with `chat-replies` capability)
         `message` | string | Message string with placeholders (see [Rich Object String](https://github.com/nextcloud/server/issues/1706))
         `messageParameters` | array | Message parameters for `message` (see [Rich Object String](https://github.com/nextcloud/server/issues/1706))
 
diff --git a/lib/Capabilities.php b/lib/Capabilities.php
index a2b96d10e..f338b21cc 100644
--- a/lib/Capabilities.php
+++ b/lib/Capabilities.php
@@ -81,6 +81,7 @@ class Capabilities implements IPublicCapability {
 					'chat-read-marker',
 					'webinary-lobby',
 					'start-call-flag',
+					'chat-replies',
 				],
 				'config' => [
 					'chat' => [
diff --git a/lib/Controller/ChatController.php b/lib/Controller/ChatController.php
index 7e05cc2e5..7e58a9c28 100644
--- a/lib/Controller/ChatController.php
+++ b/lib/Controller/ChatController.php
@@ -377,6 +377,8 @@ class ChatController extends AEnvironmentAwareController {
 			'messageParameters' => $message->getMessageParameters(),
 			'systemMessage' => $message->getMessageType() === 'system' ? $message->getMessageRaw() : '',
 			'messageType' => $message->getMessageType(),
+			'isReplyable' => $message->getMessageType() !== 'system' &&
+				($message->getActorType() === 'users' || $message->getActorType() === 'guests'),
 		];
 	}
 
diff --git a/lib/Controller/RoomController.php b/lib/Controller/RoomController.php
index 2e7cb35b8..18bd34fd7 100644
--- a/lib/Controller/RoomController.php
+++ b/lib/Controller/RoomController.php
@@ -348,6 +348,8 @@ class RoomController extends AEnvironmentAwareController {
 			'messageParameters' => $message->getMessageParameters(),
 			'systemMessage' => $message->getMessageType() === 'system' ? $message->getMessageRaw() : '',
 			'messageType' => $message->getMessageType(),
+			'isReplyable' => $message->getMessageType() !== 'system' &&
+				($message->getActorType() === 'users' || $message->getActorType() === 'guests'),
 		];
 	}
 
diff --git a/src/components/MessagesList/MessagesGroup/Message/Message.vue b/src/components/MessagesList/MessagesGroup/Message/Message.vue
index 5b5178ade..c3deccc91 100644
--- a/src/components/MessagesList/MessagesGroup/Message/Message.vue
+++ b/src/components/MessagesList/MessagesGroup/Message/Message.vue
@@ -160,6 +160,13 @@ export default {
 			required: true,
 		},
 		/**
+		 * Specifies if the message can be replied to.
+		 */
+		isReplyable: {
+			type: Boolean,
+			required: true,
+		},
+		/**
 		 * The conversation token.
 		 */
 		token: {
@@ -193,11 +200,6 @@ export default {
 			return this.parent && this.$store.getters.message(this.token, this.parent)
 		},
 
-		isReplyable() {
-			return (this.actorType === 'users' || this.actorType === 'guests')
-				&& !this.systemMessage
-		},
-
 		isSingleEmoji() {
 			const regex = emojiRegex()
 			let match
diff --git a/tests/php/CapabilitiesTest.php b/tests/php/CapabilitiesTest.php
index a0e29b76a..63bea52e8 100644
--- a/tests/php/CapabilitiesTest.php
+++ b/tests/php/CapabilitiesTest.php
@@ -92,6 +92,7 @@ class CapabilitiesTest extends TestCase {
 					'chat-read-marker',
 					'webinary-lobby',
 					'start-call-flag',
+					'chat-replies',
 				],
 				'config' => [
 					'chat' => [
@@ -148,6 +149,7 @@ class CapabilitiesTest extends TestCase {
 					'chat-read-marker',
 					'webinary-lobby',
 					'start-call-flag',
+					'chat-replies',
 				],
 				'config' => [
 					'chat' => [