ui: ignore a second click while its page is still loading

These buttons open their page only after a load, and nothing covered or
disabled the button meanwhile, so a second click during the load opened
a second page: the reports bar, the support bar as a member, group info
"Chat with admins", "Member reports", "Invite" and "Invite members",
"Chats with members" rows, member info "Chat with member", and a
channel's subscribers/owners and relays rows.

Each opener now ignores a click while its load is in progress, on
desktop and Android. The support and reports chats share one flag, as
they share one secondary chat context, so the support chat a pending
member's chat opens by itself is skipped while another of them loads.
Group info's "Invite" and "Invite members" share one flag with the chat
menu's "Invite members", as they open the same page.

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/ChatView.kt

@@ -52,6 +52,7 @@ import kotlinx.coroutines.flow.*
 import kotlinx.datetime.*
 import java.io.File
 import java.net.URI
+import java.util.concurrent.atomic.AtomicBoolean
 import kotlin.math.*
 
 @Stable
@@ -3233,7 +3234,10 @@ private fun findQuotedItemFromItem(
 
 val chatViewScrollState = MutableStateFlow(false)
 
+val addGroupMembersOpening = AtomicBoolean(false)
+
 fun addGroupMembers(groupInfo: GroupInfo, rhId: Long?, view: Any? = null, close: (() -> Unit)? = null) {
+  if (!addGroupMembersOpening.compareAndSet(false, true)) return
   hideKeyboard(view)
   withBGApi {
     setGroupMembers(rhId, groupInfo, chatModel)
@@ -3241,7 +3245,7 @@ fun addGroupMembers(groupInfo: GroupInfo, rhId: Long?, view: Any? = null, close:
     ModalManager.end.showModalCloseable(showClose = true) { close ->
       AddGroupMembersView(rhId, groupInfo, false, chatModel, close)
     }
-  }
+  }.invokeOnCompletion { addGroupMembersOpening.set(false) }
 }
 
 fun openGroupLink(groupInfo: GroupInfo, rhId: Long?, view: Any? = null, close: (() -> Unit)? = null) {

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/group/GroupChatInfoView.kt

@@ -52,6 +52,7 @@ import chat.simplex.common.views.newchat.SimpleXLinkQRCode
 import chat.simplex.res.*
 import dev.icerock.moko.resources.StringResource
 import kotlinx.coroutines.*
+import java.util.concurrent.atomic.AtomicBoolean
 
 const val SMALL_GROUPS_RCPS_MEM_LIMIT: Int = 20
 val MEMBER_ROW_AVATAR_SIZE = 42.dp
@@ -113,6 +114,7 @@ fun ModalData.GroupChatInfoView(
       appBar,
       scrollToItemId,
       addMembers = {
+        if (!addGroupMembersOpening.compareAndSet(false, true)) return@GroupChatInfoLayout
         scope.launch(Dispatchers.Default) {
           setGroupMembers(rhId, groupInfo, chatModel)
           if (!isActive) return@launch
@@ -120,7 +122,7 @@ fun ModalData.GroupChatInfoView(
           ModalManager.end.showModalCloseable(showClose = true) { close ->
             AddGroupMembersView(rhId, groupInfo, false, chatModel, close)
           }
-        }
+        }.invokeOnCompletion { addGroupMembersOpening.set(false) }
       },
       showMemberInfo = { member, groupRelay ->
         val connStats = mutableStateOf<ConnectionStats?>(null)
@@ -1293,6 +1295,8 @@ private fun ShareViaChatButton(onClick: () -> Unit) {
   }
 }
 
+private val channelMembersOpening = AtomicBoolean(false)
+
 @Composable
 private fun ChannelMembersButton(rhId: Long?, groupInfo: GroupInfo, showMemberInfo: (GroupMember, GroupRelay?) -> Unit) {
   val title = if (groupInfo.isOwner) {
@@ -1304,29 +1308,33 @@ private fun ChannelMembersButton(rhId: Long?, groupInfo: GroupInfo, showMemberIn
     painterResource(MR.images.ic_group),
     title,
     click = {
+      if (!channelMembersOpening.compareAndSet(false, true)) return@SettingsActionItem
       withBGApi {
         setGroupMembers(rhId, groupInfo, chatModel)
         ModalManager.end.showModalCloseable(true) { close ->
           ChannelMembersView(rhId, groupInfo, chatModel, close) { member -> showMemberInfo(member, null) }
         }
-      }
+      }.invokeOnCompletion { channelMembersOpening.set(false) }
     },
     iconColor = MaterialTheme.colors.secondary
   )
 }
 
+private val channelRelaysOpening = AtomicBoolean(false)
+
 @Composable
 private fun ChannelRelaysButton(rhId: Long?, groupInfo: GroupInfo, showMemberInfo: (GroupMember, GroupRelay?) -> Unit) {
   SettingsActionItem(
     painterResource(MR.images.ic_wifi_tethering),
     stringResource(MR.strings.button_channel_relays),
     click = {
+      if (!channelRelaysOpening.compareAndSet(false, true)) return@SettingsActionItem
       withBGApi {
         setGroupMembers(rhId, groupInfo, chatModel)
         ModalManager.end.showModalCloseable(true) { close ->
           ChannelRelaysView(rhId, groupInfo, chatModel, close, showMemberInfo)
         }
-      }
+      }.invokeOnCompletion { channelRelaysOpening.set(false) }
     },
     iconColor = MaterialTheme.colors.secondary
   )

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/group/GroupReportsView.kt

@@ -77,8 +77,13 @@ fun ItemsReload(chatsCtx: ChatModel.ChatsContext,) {
 }
 
 suspend fun showGroupReportsView(staleChatId: State<String?>, scrollToItemId: MutableState<Long?>, chatInfo: ChatInfo) {
+  if (!secondaryChatOpening.compareAndSet(false, true)) return
   val reportsChatsCtx = ChatModel.ChatsContext(secondaryContextFilter = SecondaryContextFilter.MsgContentTagContext(MsgContentTag.Report))
-  openChat(secondaryChatsCtx = reportsChatsCtx, chatModel.remoteHostId(), chatInfo)
+  try {
+    openChat(secondaryChatsCtx = reportsChatsCtx, chatModel.remoteHostId(), chatInfo)
+  } finally {
+    secondaryChatOpening.set(false)
+  }
   ModalManager.end.showCustomModal(true, id = ModalViewId.SECONDARY_CHAT) { close ->
     ModalView({}, showAppBar = false) {
       val chatInfo = remember { derivedStateOf { chatModel.chats.value.firstOrNull { it.id == chatModel.chatId.value }?.chatInfo } }.value

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/views/chat/group/MemberSupportChatView.kt

@@ -19,6 +19,7 @@ import chat.simplex.common.views.helpers.*
 import chat.simplex.res.*
 import dev.icerock.moko.resources.compose.painterResource
 import dev.icerock.moko.resources.compose.stringResource
+import java.util.concurrent.atomic.AtomicBoolean
 
 @Composable
 private fun MemberSupportChatView(
@@ -156,9 +157,16 @@ fun MemberSupportChatToolbarTitle(member: GroupMember, imageSize: Dp = 40.dp, ic
   }
 }
 
+val secondaryChatOpening = AtomicBoolean(false)
+
 suspend fun showMemberSupportChatView(staleChatId: State<String?>, scrollToItemId: MutableState<Long?>, chatInfo: ChatInfo, scopeInfo: GroupChatScopeInfo) {
+  if (!secondaryChatOpening.compareAndSet(false, true)) return
   val memberSupportChatsCtx = ChatModel.ChatsContext(secondaryContextFilter = SecondaryContextFilter.GroupChatScopeContext(scopeInfo))
-  openChat(secondaryChatsCtx = memberSupportChatsCtx, chatModel.remoteHostId(), chatInfo)
+  try {
+    openChat(secondaryChatsCtx = memberSupportChatsCtx, chatModel.remoteHostId(), chatInfo)
+  } finally {
+    secondaryChatOpening.set(false)
+  }
   ModalManager.end.showCustomModal(true, id = ModalViewId.SECONDARY_CHAT) { close ->
     ModalView({}, showAppBar = false) {
       if (chatInfo is ChatInfo.Group && chatInfo.groupChatScope != null) {