desktop: don't show another chat's info while the shown chat loads

When the info pane showed a chat other than the one its values were
loaded for, it reloaded them, but until the reload returned it showed the
previous chat's values: "Verify security code" opened the previous
contact's code, and a group showed the previous group's link, so "Group
link" opened and shared another group's link.

Start the contact info, security code and group link empty when they
belong to another chat. Hide the "Create group link" / "Group link" row
and disable the channel "Link" button until the link is loaded: with no
link yet, both open the link page, which creates a link when it gets
none, and for a group that already has one the core creates a server
queue before failing with a duplicate link error.

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

@@ -425,8 +425,8 @@ fun ChatView(
                   ModalView(close, cardScreen = true, appBar = appBar.value) {
                     val chatInfo = remember { activeChat }.value?.chatInfo
                     if (chatInfo is ChatInfo.Direct) {
-                      var contactInfo: Pair<ConnectionStats?, Profile?>? by remember { mutableStateOf(preloadedContactInfo) }
-                      var code: String? by remember { mutableStateOf(preloadedCode) }
+                      var contactInfo: Pair<ConnectionStats?, Profile?>? by remember(chatInfo.id) { mutableStateOf(if (chatInfo.id == preloadedChatId) preloadedContactInfo else null) }
+                      var code: String? by remember(chatInfo.id) { mutableStateOf(if (chatInfo.id == preloadedChatId) preloadedCode else null) }
                       LaunchedEffect(chatInfo.id) {
                         if (chatInfo.id == preloadedChatId) return@LaunchedEffect
                         preloadedChatId = null
@@ -440,16 +440,18 @@ fun ChatView(
                         showSearch.value = true
                       }
                     } else if (chatInfo is ChatInfo.Group) {
-                      var link: GroupLink? by remember(chatInfo.id) { mutableStateOf(preloadedLink) }
+                      var link: GroupLink? by remember(chatInfo.id) { mutableStateOf(if (chatInfo.id == preloadedChatId) preloadedLink else null) }
+                      var linkLoaded by remember(chatInfo.id) { mutableStateOf(chatInfo.id == preloadedChatId) }
                       LaunchedEffect(chatInfo.id) {
                         if (chatInfo.id == preloadedChatId) return@LaunchedEffect
                         preloadedChatId = null
                         setGroupMembers(chatRh, chatInfo.groupInfo, chatModel)
                         link = chatModel.controller.apiGetGroupLink(chatRh, chatInfo.groupInfo.groupId)
+                        linkLoaded = true
                         preloadedLink = link
                         preloadedChatId = chatInfo.id
                       }
-                      GroupChatInfoView(chatsCtx, chatRh, chatInfo.id, link, selectedItems, appBar, scrollToItemId, {
+                      GroupChatInfoView(chatsCtx, chatRh, chatInfo.id, link, linkLoaded, selectedItems, appBar, scrollToItemId, {
                         link = it
                         preloadedLink = it
                       }, close, { showSearch.value = true })

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

@@ -63,6 +63,7 @@ fun ModalData.GroupChatInfoView(
   rhId: Long?,
   chatId: String,
   groupLink: GroupLink?,
+  groupLinkLoaded: Boolean,
   selectedItems: MutableState<Set<Long>?>,
   appBar: MutableState<@Composable (BoxScope.() -> Unit)?>,
   scrollToItemId: MutableState<Long?>,
@@ -109,6 +110,7 @@ fun ModalData.GroupChatInfoView(
       developerTools,
       onLocalAliasChanged = { setGroupAlias(chat, it, chatModel) },
       groupLink,
+      groupLinkLoaded,
       selectedItems,
       appBar,
       scrollToItemId,
@@ -462,14 +464,15 @@ fun AddGroupMembersButton(
 fun ChannelLinkActionButton(
   modifier: Modifier,
   groupInfo: GroupInfo,
+  groupLinkLoaded: Boolean,
   manageGroupLink: () -> Unit
 ) {
   InfoViewActionButton(
     modifier = modifier,
     icon = painterResource(MR.images.ic_link),
     title = stringResource(MR.strings.action_button_channel_link),
-    disabled = !groupInfo.ready,
-    disabledLook = !groupInfo.ready,
+    disabled = !groupInfo.ready || !groupLinkLoaded,
+    disabledLook = !groupInfo.ready || !groupLinkLoaded,
     onClick = manageGroupLink
   )
 }
@@ -521,6 +524,7 @@ fun ModalData.GroupChatInfoLayout(
   developerTools: Boolean,
   onLocalAliasChanged: (String) -> Unit,
   groupLink: GroupLink?,
+  groupLinkLoaded: Boolean,
   selectedItems: MutableState<Set<Long>?>,
   appBar: MutableState<@Composable (BoxScope.() -> Unit)?>,
   scrollToItemId: MutableState<Long?>,
@@ -606,7 +610,7 @@ fun ModalData.GroupChatInfoLayout(
         ) {
           if (groupInfo.useRelays && groupInfo.isOwner) {
             SearchButton(modifier = Modifier.fillMaxWidth(0.33f), chat, groupInfo, close, onSearchClicked)
-            ChannelLinkActionButton(modifier = Modifier.fillMaxWidth(0.5f), groupInfo, manageGroupLink)
+            ChannelLinkActionButton(modifier = Modifier.fillMaxWidth(0.5f), groupInfo, groupLinkLoaded, manageGroupLink)
             MuteButton(modifier = Modifier.fillMaxWidth(1f), chat, groupInfo)
           } else if (!groupInfo.useRelays && groupInfo.canAddMembers) {
             SearchButton(modifier = Modifier.fillMaxWidth(0.33f), chat, groupInfo, close, onSearchClicked)
@@ -681,7 +685,7 @@ fun ModalData.GroupChatInfoLayout(
         }
       } else {
         SectionView {
-          if (groupInfo.canAddMembers && groupInfo.businessChat == null) {
+          if (groupInfo.canAddMembers && groupInfo.businessChat == null && groupLinkLoaded) {
             anyTopSectionRowShow = true
             if (groupLink == null) {
               CreateGroupLinkButton(manageGroupLink)
@@ -1460,6 +1464,7 @@ fun PreviewGroupChatInfoLayout() {
       developerTools = false,
       onLocalAliasChanged = {},
       groupLink = null,
+      groupLinkLoaded = true,
       selectedItems = remember { mutableStateOf(null) },
       appBar = remember { mutableStateOf(null) },
       scrollToItemId = remember { mutableStateOf(null) },