Pinned events: add unpin action

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/MessagesPresenter.kt

@@ -281,6 +281,7 @@ class MessagesPresenter @AssistedInject constructor(
             TimelineItemAction.ReportContent -> handleReportAction(targetEvent)
             TimelineItemAction.EndPoll -> handleEndPollAction(targetEvent, timelineState)
             TimelineItemAction.Pin -> handlePinAction(targetEvent)
+            TimelineItemAction.Unpin -> handleUnpinAction(targetEvent)
         }
     }
 
@@ -291,6 +292,13 @@ class MessagesPresenter @AssistedInject constructor(
         }
     }
 
+    private suspend fun handleUnpinAction(targetEvent: TimelineItem.Event) {
+        if (targetEvent.eventId == null) return
+        timelineController.invokeOnCurrentTimeline {
+            unpinEvent(targetEvent.eventId)
+        }
+    }
+
     private fun CoroutineScope.toggleReaction(
         emoji: String,
         eventId: EventId,

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/actionlist/model/TimelineItemAction.kt

@@ -40,4 +40,6 @@ sealed class TimelineItemAction(
     data object ReportContent : TimelineItemAction(CommonStrings.action_report_content, CompoundDrawables.ic_compound_chat_problem, destructive = true)
     data object EndPoll : TimelineItemAction(CommonStrings.action_end_poll, CompoundDrawables.ic_compound_polls_end)
     data object Pin : TimelineItemAction(CommonStrings.action_pin, CompoundDrawables.ic_compound_pin)
+    //TODO use the Unpin compound icon when available.
+    data object Unpin : TimelineItemAction(CommonStrings.action_unpin, CompoundDrawables.ic_compound_pin)
 }

libraries/ui-strings/src/main/res/values/localazy.xml

@@ -110,6 +110,7 @@
   <string name="action_take_photo">"Take photo"</string>
   <string name="action_tap_for_options">"Tap for options"</string>
   <string name="action_try_again">"Try again"</string>
+  <string name="action_unpin">"Unpin"</string>
   <string name="action_view_source">"View source"</string>
   <string name="action_yes">"Yes"</string>
   <string name="common_about">"About"</string>