multiplatform: check preferences before share/forward (#4338)

apps/multiplatform/common/src/commonMain/kotlin/chat/simplex/common/model/ChatModel.kt

@@ -2925,6 +2925,20 @@ sealed class MsgContent {
   @Serializable(with = MsgContentSerializer::class) class MCFile(override val text: String): MsgContent()
   @Serializable(with = MsgContentSerializer::class) class MCUnknown(val type: String? = null, override val text: String, val json: JsonElement): MsgContent()
 
+  val isVoice: Boolean get() =
+    when (this) {
+      is MCVoice -> true
+      else -> false
+    }
+
+  val isMediaOrFileAttachment: Boolean get() =
+    when (this) {
+      is MCImage -> true
+      is MCVideo -> true
+      is MCFile -> true
+      else -> false
+    }
+
   val cmdString: String get() =
     if (this is MCUnknown) "json $json" else "json ${json.encodeToString(this)}"
 }

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

@@ -9,30 +9,55 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
-import chat.simplex.common.views.helpers.ProfileImage
 import chat.simplex.common.model.*
 import chat.simplex.common.ui.theme.*
+import chat.simplex.common.views.helpers.*
 import chat.simplex.res.MR
 
 @Composable
-fun ShareListNavLinkView(chat: Chat, chatModel: ChatModel) {
+fun ShareListNavLinkView(
+  chat: Chat,
+  chatModel: ChatModel,
+  isMediaOrFileAttachment: Boolean,
+  isVoice: Boolean,
+  hasSimplexLink: Boolean
+) {
   val stopped = chatModel.chatRunning.value == false
   when (chat.chatInfo) {
-    is ChatInfo.Direct ->
+    is ChatInfo.Direct -> {
+      val voiceProhibited = isVoice && !chat.chatInfo.featureEnabled(ChatFeature.Voice)
       ShareListNavLinkLayout(
-        chatLinkPreview = { SharePreviewView(chat) },
+        chatLinkPreview = { SharePreviewView(chat, disabled = voiceProhibited) },
-        click = { directChatAction(chat.remoteHostId, chat.chatInfo.contact, chatModel) },
+        click = {
+          if (voiceProhibited) {
+            showForwardProhibitedByPrefAlert()
+          } else {
+            directChatAction(chat.remoteHostId, chat.chatInfo.contact, chatModel)
+          }
+        },
         stopped
       )
-    is ChatInfo.Group ->
+    }
+    is ChatInfo.Group -> {
+      val simplexLinkProhibited = hasSimplexLink && !chat.groupFeatureEnabled(GroupFeature.SimplexLinks)
+      val fileProhibited = isMediaOrFileAttachment && !chat.groupFeatureEnabled(GroupFeature.Files)
+      val voiceProhibited = isVoice && !chat.chatInfo.featureEnabled(ChatFeature.Voice)
+      val prohibitedByPref = simplexLinkProhibited || fileProhibited || voiceProhibited
       ShareListNavLinkLayout(
-        chatLinkPreview = { SharePreviewView(chat) },
+        chatLinkPreview = { SharePreviewView(chat, disabled = prohibitedByPref) },
-        click = { groupChatAction(chat.remoteHostId, chat.chatInfo.groupInfo, chatModel) },
+        click = {
+          if (prohibitedByPref) {
+            showForwardProhibitedByPrefAlert()
+          } else {
+            groupChatAction(chat.remoteHostId, chat.chatInfo.groupInfo, chatModel)
+          }
+        },
         stopped
       )
+    }
     is ChatInfo.Local ->
       ShareListNavLinkLayout(
-        chatLinkPreview = { SharePreviewView(chat) },
+        chatLinkPreview = { SharePreviewView(chat, disabled = false) },
         click = { noteFolderChatAction(chat.remoteHostId, chat.chatInfo.noteFolder) },
         stopped
       )
@@ -40,6 +65,13 @@ fun ShareListNavLinkView(chat: Chat, chatModel: ChatModel) {
   }
 }
 
+private fun showForwardProhibitedByPrefAlert() {
+  AlertManager.shared.showAlertMsg(
+    title = generalGetString(MR.strings.cannot_share_message_alert_title),
+    text = generalGetString(MR.strings.cannot_share_message_alert_text),
+  )
+}
+
 @Composable
 private fun ShareListNavLinkLayout(
   chatLinkPreview: @Composable () -> Unit,
@@ -53,7 +85,7 @@ private fun ShareListNavLinkLayout(
 }
 
 @Composable
-private fun SharePreviewView(chat: Chat) {
+private fun SharePreviewView(chat: Chat, disabled: Boolean) {
   Row(
     Modifier.fillMaxSize(),
     horizontalArrangement = Arrangement.SpaceBetween,
@@ -70,7 +102,7 @@ private fun SharePreviewView(chat: Chat) {
       }
       Text(
         chat.chatInfo.chatViewName, maxLines = 1, overflow = TextOverflow.Ellipsis,
-        color = if (chat.chatInfo.incognito) Indigo else Color.Unspecified
+        color = if (disabled) MaterialTheme.colors.secondary else if (chat.chatInfo.incognito) Indigo else Color.Unspecified
       )
     }
   }

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

@@ -31,13 +31,44 @@ fun ShareListView(chatModel: ChatModel, settingsState: SettingsViewState, stoppe
     scaffoldState = scaffoldState,
     topBar = { Column { ShareListToolbar(chatModel, userPickerState, stopped) { searchInList = it.trim() } } },
   ) {
+    val sharedContent = chatModel.sharedContent.value
+    var isMediaOrFileAttachment = false
+    var isVoice = false
+    var hasSimplexLink = false
+    when (sharedContent) {
+      is SharedContent.Text ->
+        hasSimplexLink = hasSimplexLink(sharedContent.text)
+      is SharedContent.Media -> {
+        isMediaOrFileAttachment = true
+        hasSimplexLink = hasSimplexLink(sharedContent.text)
+      }
+      is SharedContent.File -> {
+        isMediaOrFileAttachment = true
+        hasSimplexLink = hasSimplexLink(sharedContent.text)
+      }
+      is SharedContent.Forward -> {
+        val mc = sharedContent.chatItem.content.msgContent
+        if (mc != null) {
+          isMediaOrFileAttachment = mc.isMediaOrFileAttachment
+          isVoice = mc.isVoice
+          hasSimplexLink = hasSimplexLink(mc.text)
+        }
+      }
+      null -> {}
+    }
     Box(Modifier.padding(it)) {
       Column(
         modifier = Modifier
           .fillMaxSize()
       ) {
         if (chatModel.chats.isNotEmpty()) {
-          ShareList(chatModel, search = searchInList)
+          ShareList(
+            chatModel,
+            search = searchInList,
+            isMediaOrFileAttachment = isMediaOrFileAttachment,
+            isVoice = isVoice,
+            hasSimplexLink = hasSimplexLink
+          )
         } else {
           EmptyList()
         }
@@ -54,6 +85,11 @@ fun ShareListView(chatModel: ChatModel, settingsState: SettingsViewState, stoppe
   }
 }
 
+private fun hasSimplexLink(msg: String): Boolean {
+  val parsedMsg = parseToMarkdown(msg) ?: return false
+  return parsedMsg.any { ft -> ft.format is Format.SimplexLink }
+}
+
 @Composable
 private fun EmptyList() {
   Box(Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
@@ -141,7 +177,13 @@ private fun ShareListToolbar(chatModel: ChatModel, userPickerState: MutableState
 }
 
 @Composable
-private fun ShareList(chatModel: ChatModel, search: String) {
+private fun ShareList(
+  chatModel: ChatModel,
+  search: String,
+  isMediaOrFileAttachment: Boolean,
+  isVoice: Boolean,
+  hasSimplexLink: Boolean
+) {
   val chats by remember(search) {
     derivedStateOf {
       val sorted = chatModel.chats.toList().sortedByDescending { it.chatInfo is ChatInfo.Local }
@@ -156,7 +198,13 @@ private fun ShareList(chatModel: ChatModel, search: String) {
     modifier = Modifier.fillMaxWidth()
   ) {
     items(chats) { chat ->
-      ShareListNavLinkView(chat, chatModel)
+      ShareListNavLinkView(
+        chat,
+        chatModel,
+        isMediaOrFileAttachment = isMediaOrFileAttachment,
+        isVoice = isVoice,
+        hasSimplexLink = hasSimplexLink
+      )
     }
   }
 }

apps/multiplatform/common/src/commonMain/resources/MR/base/strings.xml

@@ -358,6 +358,8 @@
   <string name="share_image">Share media…</string>
   <string name="share_file">Share file…</string>
   <string name="forward_message">Forward message…</string>
+  <string name="cannot_share_message_alert_title">Cannot send message</string>
+  <string name="cannot_share_message_alert_text">Selected chat preferences prohibit this message.</string>
 
   <!-- ComposeView.kt, helpers -->
   <string name="attach">Attach</string>