Add clear all menu action to calls tab.

app/src/main/java/org/thoughtcrime/securesms/calls/log/CallLogFragment.kt

@@ -88,6 +88,7 @@ class CallLogFragment : Fragment(R.layout.call_log_fragment), CallLogAdapter.Cal
 
     override fun onMenuItemSelected(menuItem: MenuItem): Boolean {
       when (menuItem.itemId) {
+        R.id.action_clear_call_history -> clearCallHistory()
         R.id.action_settings -> startActivity(AppSettingsActivity.home(requireContext()))
         R.id.action_notification_profile -> NotificationProfileSelectionFragment.show(parentFragmentManager)
         R.id.action_filter_missed_calls -> filterMissedCalls()
@@ -386,6 +387,29 @@ class CallLogFragment : Fragment(R.layout.call_log_fragment), CallLogAdapter.Cal
     binding.recyclerCoordinatorAppBar.setExpanded(false, true)
   }
 
+  private fun clearCallHistory() {
+    MaterialAlertDialogBuilder(requireContext())
+      .setTitle(R.string.CallLogFragment__clear_call_history_question)
+      .setMessage(R.string.CallLogFragment__this_will_permanently_delete_all_call_history)
+      .setPositiveButton(android.R.string.ok) { _, _ ->
+        callLogActionMode.end()
+        viewModel.stageDeleteAll()
+        Snackbar
+          .make(
+            binding.root,
+            R.string.CallLogFragment__cleared_call_history,
+            Snackbar.LENGTH_SHORT
+          )
+          .addCallback(SnackbarDeletionCallback())
+          .setAction(R.string.CallLogFragment__undo) {
+            viewModel.cancelStagedDeletion()
+          }
+          .show()
+      }
+      .setNegativeButton(android.R.string.cancel, null)
+      .show()
+  }
+
   private fun isSearchOpen(): Boolean {
     return isSearchVisible() || viewModel.hasSearchQuery
   }

app/src/main/java/org/thoughtcrime/securesms/calls/log/CallLogViewModel.kt

@@ -123,6 +123,20 @@ class CallLogViewModel(
     }
   }
 
+  fun stageDeleteAll() {
+    callLogStore.state.stagedDeletion?.cancel()
+    callLogStore.update {
+      it.copy(
+        selectionState = CallLogSelectionState.empty(),
+        stagedDeletion = CallLogStagedDeletion(
+          it.filter,
+          CallLogSelectionState.selectAll(),
+          callLogRepository
+        )
+      )
+    }
+  }
+
   fun commitStagedDeletion() {
     callLogStore.state.stagedDeletion?.commit()
     callLogStore.update {