ui: open PM files explicitly and translate conversation mode choices

tools/chatgui-android/app/src/main/java/com/utun/chat/ui/screens/DmChatScreen.kt

@@ -24,6 +24,10 @@ import com.utun.chat.ui.components.ConversationComposer
 import com.utun.chat.ui.components.ConversationMessages
 import com.utun.chat.viewmodel.ChatViewModel
 import java.io.File
+import android.content.Intent
+import android.content.ClipData
+import android.webkit.MimeTypeMap
+import androidx.core.content.FileProvider
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.launch
@@ -45,6 +49,7 @@ fun DmChatScreen(conv: DmConversation, messages: List<Message>, viewModel: ChatV
     val context = LocalContext.current
     val scope = rememberCoroutineScope()
     var pathToSave by rememberSaveable { mutableStateOf<String?>(null) }
+    var fileChoice by remember(target) { mutableStateOf<Message?>(null) }
     var error by remember(conv.convId, conv.generation) { mutableStateOf<Int?>(null) }
     val save = rememberLauncherForActivityResult(ActivityResultContracts.CreateDocument("*/*")) { uri ->
         val path = pathToSave
@@ -67,6 +72,40 @@ fun DmChatScreen(conv: DmConversation, messages: List<Message>, viewModel: ChatV
     LaunchedEffect(messages.size) {
         if (messages.lastOrNull()?.isOutgoing == true) state.scrollToItem(0)
     }
+    fileChoice?.let { message ->
+        AlertDialog(onDismissRequest = { fileChoice = null }, title = { Text(message.text) },
+            confirmButton = { TextButton(onClick = {
+                fileChoice = null
+                viewModel.prepareDmAttachment(target, message)
+                scope.launch {
+                    try {
+                        val file = withContext(Dispatchers.IO) {
+                            val dir = File(context.cacheDir, "member_files/dm/${File(message.filePath).nameWithoutExtension}")
+                            check(dir.isDirectory || dir.mkdirs()) { "Cannot create export directory" }
+                            val name = File(message.text).name.takeUnless { it.isBlank() || it == "." || it == ".." } ?: "attachment.bin"
+                            File(message.filePath).copyTo(File(dir, name), overwrite = true)
+                        }
+                        val uri = FileProvider.getUriForFile(context, "${context.packageName}.memberfiles", file)
+                        val mime = MimeTypeMap.getSingleton().getMimeTypeFromExtension(file.extension.lowercase()) ?: "application/octet-stream"
+                        context.startActivity(Intent(Intent.ACTION_VIEW).apply {
+                            setDataAndType(uri, mime); clipData = ClipData.newRawUri(file.name, uri)
+                            addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION)
+                        })
+                        viewModel.attachmentOpened(message.filePath)
+                    } catch (e: CancellationException) { throw e }
+                    catch (e: Exception) {
+                        LogManager.addLog("ERROR", "PM", "Cannot open attachment: $e"); error = R.string.file_open_failed
+                    }
+                }
+            }) { Text(stringResource(R.string.files_open)) } },
+            dismissButton = { TextButton(onClick = {
+                fileChoice = null; pathToSave = message.filePath; error = null
+                try { save.launch(message.text) } catch (e: Exception) {
+                    pathToSave = null; error = R.string.file_save_failed
+                    LogManager.addLog("ERROR", "PM", "Cannot launch document export: $e")
+                }
+            }) { Text(stringResource(R.string.save)) } })
+    }
     Column(Modifier.fillMaxSize().imePadding()) {
         TopAppBar(title = {
             Row(verticalAlignment = Alignment.CenterVertically) {
@@ -96,13 +135,7 @@ fun DmChatScreen(conv: DmConversation, messages: List<Message>, viewModel: ChatV
                 viewModel.seekVoice(path, position, duration)
             },
             onOpenFile = {
-                if (it.filePath.isNotEmpty() && pathToSave == null) {
-                    pathToSave = it.filePath; error = null
-                    try { save.launch(it.text) } catch (e: Exception) {
-                        pathToSave = null; error = R.string.file_save_failed
-                        LogManager.addLog("ERROR", "PM", "Cannot launch document export: $e")
-                    }
-                }
+                if (it.filePath.isNotEmpty() && pathToSave == null) fileChoice = it
             },
             onDownloadFile = { viewModel.downloadDmAttachment(target, it) },
             onPlayVideo = { viewModel.prepareDmAttachment(target, it); onPlayVideo(it) },

tools/chatgui/translations/chatgui_en.ts

@@ -8,6 +8,10 @@
     <message><source>Finish pairing</source><translation>Finish pairing</translation></message>
     <message><source>Link %1 to your device subgroup. The device will receive the subgroup's shared keys.&#10;&#10;Enter the first PIN on that device, then enter its return PIN here. On the other device, open Finish pairing in your own member menu. Complete both steps within two minutes.</source><translation>Link %1 to your device subgroup. The device will receive the subgroup's shared keys.&#10;&#10;Enter the first PIN on that device, then enter its return PIN here. On the other device, open Finish pairing in your own member menu. Complete both steps within two minutes.</translation></message>
     <message><source>Message formatting</source><translation>Message formatting</translation></message>
+    <message><source>Choose which devices participate in this conversation.</source><translation>Choose which devices participate in this conversation.</translation></message>
+    <message><source>With device groups</source><translation>With device groups</translation></message>
+    <message><source>Only these devices</source><translation>Only these devices</translation></message>
+    <message><source>File unavailable</source><translation>File unavailable</translation></message>
     <message>
         <source>**text** — bold&#10;__text__ — italic&#10;~~text~~ — strikethrough&#10;&#10;Use paired tags on one line, without spaces next to the text.&#10;&#10;Code blocks: put ``` on separate lines, as shown:&#10;```cpp&#10;int value = 42;&#10;```&#10;&#10;Spaces around ``` and the language are allowed.&#10;The language after ``` is optional: the chat will try to detect it.&#10;Use ```text to disable highlighting. Copy copies the whole block.</source>
         <translation>**text** — bold&#10;__text__ — italic&#10;~~text~~ — strikethrough&#10;&#10;Use paired tags on one line, without spaces next to the text.&#10;&#10;Code blocks: put ``` on separate lines, as shown:&#10;```cpp&#10;int value = 42;&#10;```&#10;&#10;Spaces around ``` and the language are allowed.&#10;The language after ``` is optional: the chat will try to detect it.&#10;Use ```text to disable highlighting. Copy copies the whole block.</translation>

tools/chatgui/translations/chatgui_ru.ts

@@ -8,6 +8,10 @@
     <message><source>Finish pairing</source><translation>Завершить спаривание</translation></message>
     <message><source>Link %1 to your device subgroup. The device will receive the subgroup's shared keys.&#10;&#10;Enter the first PIN on that device, then enter its return PIN here. On the other device, open Finish pairing in your own member menu. Complete both steps within two minutes.</source><translation>Свяжите %1 с подгруппой ваших устройств. Устройство получит общие ключи подгруппы.&#10;&#10;Введите первый PIN на том устройстве, затем его ответный PIN здесь. На другом устройстве откройте «Завершить спаривание» в меню своего участника. Завершите оба шага в течение двух минут.</translation></message>
     <message><source>Message formatting</source><translation>Форматирование сообщений</translation></message>
+    <message><source>Choose which devices participate in this conversation.</source><translation>Выберите устройства для этой беседы.</translation></message>
+    <message><source>With device groups</source><translation>С подгруппами устройств</translation></message>
+    <message><source>Only these devices</source><translation>Только эти устройства</translation></message>
+    <message><source>File unavailable</source><translation>Файл недоступен</translation></message>
     <message>
         <source>**text** — bold&#10;__text__ — italic&#10;~~text~~ — strikethrough&#10;&#10;Use paired tags on one line, without spaces next to the text.&#10;&#10;Code blocks: put ``` on separate lines, as shown:&#10;```cpp&#10;int value = 42;&#10;```&#10;&#10;Spaces around ``` and the language are allowed.&#10;The language after ``` is optional: the chat will try to detect it.&#10;Use ```text to disable highlighting. Copy copies the whole block.</source>
         <translation>**текст** — жирный&#10;__текст__ — курсив&#10;~~текст~~ — зачёркнутый&#10;&#10;Ставьте парные теги в одной строке, без пробелов рядом с текстом.&#10;&#10;Блок кода: ``` должны быть на отдельных строках, как в примере:&#10;```cpp&#10;int value = 42;&#10;```&#10;&#10;Пробелы вокруг ``` и названия языка допустимы.&#10;Язык после ``` необязателен: чат попробует определить его сам.&#10;Укажите ```text для кода без подсветки. Copy копирует весь блок.</translation>