Label message attachment tap action for TalkBack

Image, video, file and link attachments in the message list previously
announced as "double-tap to activate" — generic, no verb. The
`combinedClickable` on each of those attachment containers had no
`onClickLabel`, so TalkBack fell back to the platform default.

Add `onClickLabel = "Open attachment"` to `MediaAttachmentContent`,
`FileAttachmentContent`, and `LinkAttachmentContent`. TalkBack now reads
"<type> attachment, double tap to Open attachment" for images and
videos, and "<filename>, <size>, double tap to Open attachment" for
files (the inner Texts already carry the name and size).

Adds `stream_compose_message_attachment_open` across the 7 supported
locales. No public API surface change.

Poll, location, giphy and audio attachments are left for a follow-up —
each has its own composable and a different interaction model. Multi-
attachment disambiguation (e.g. "Image 1 of 4") is also a separate
follow-up; it needs index/total plumbing through the multi-attachment
grid.

Author: andremion

stream-chat-android-compose/src/main/java/io/getstream/chat/android/compose/ui/attachments/content/FileAttachmentContent.kt

@@ -37,6 +37,7 @@ import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.platform.testTag
+import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.TextStyle
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.tooling.preview.Preview
@@ -45,6 +46,7 @@ import io.getstream.chat.android.client.utils.attachment.isAudio
 import io.getstream.chat.android.client.utils.attachment.isFile
 import io.getstream.chat.android.client.utils.attachment.isImage
 import io.getstream.chat.android.client.utils.attachment.isVideo
+import io.getstream.chat.android.compose.R
 import io.getstream.chat.android.compose.state.messages.attachments.AttachmentState
 import io.getstream.chat.android.compose.ui.attachments.preview.handler.AttachmentPreviewHandler
 import io.getstream.chat.android.compose.ui.components.LoadingIndicator
@@ -100,6 +102,7 @@ public fun FileAttachmentContent(
             )
             .testTag("Stream_MultipleFileAttachmentsColumn"),
     ) {
+        val openAttachmentLabel = stringResource(R.string.stream_compose_message_attachment_open)
         for (attachment in message.attachments) {
             if (attachment.isFile() || attachment.isAudio()) {
                 ChatTheme.componentFactory.FileAttachmentItem(
@@ -114,6 +117,7 @@ public fun FileAttachmentContent(
                             .combinedClickable(
                                 indication = ripple(),
                                 interactionSource = remember { MutableInteractionSource() },
+                                onClickLabel = openAttachmentLabel,
                                 onClick = { onItemClick(previewHandlers, attachment) },
                                 onLongClick = { attachmentState.onLongItemClick(message) },
                             ),

stream-chat-android-compose/src/main/java/io/getstream/chat/android/compose/ui/attachments/content/LinkAttachmentContent.kt

@@ -50,6 +50,7 @@ import androidx.compose.ui.layout.ContentScale
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.testTag
 import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
@@ -105,6 +106,7 @@ public fun LinkAttachmentContent(
     }
 
     val context = LocalContext.current
+    val openAttachmentLabel = stringResource(R.string.stream_compose_message_attachment_open)
     val textColor = MessageStyling.textColor(outgoing = state.isMine)
     val baseModifier = modifier
         .padding(MessageStyling.messageSectionPadding)
@@ -114,6 +116,7 @@ public fun LinkAttachmentContent(
         .combinedClickable(
             indication = ripple(),
             interactionSource = remember { MutableInteractionSource() },
+            onClickLabel = openAttachmentLabel,
             onClick = {
                 onItemClick(
                     LinkAttachmentClickData(

stream-chat-android-compose/src/main/java/io/getstream/chat/android/compose/ui/attachments/content/MediaAttachmentContent.kt

@@ -452,6 +452,7 @@ internal fun MediaAttachmentContentItem(
         attachment.uploadState is Attachment.UploadState.InProgress ||
         attachment.uploadState is Attachment.UploadState.Idle
 
+    val openAttachmentLabel = stringResource(R.string.stream_compose_message_attachment_open)
     Box(
         modifier = modifier
             .semantics {
@@ -465,6 +466,7 @@ internal fun MediaAttachmentContentItem(
             .combinedClickable(
                 interactionSource = remember { MutableInteractionSource() },
                 indication = ripple(),
+                onClickLabel = openAttachmentLabel,
                 onClick = {
                     if (message.syncStatus == SyncStatus.COMPLETED) {
                         onItemClick(

stream-chat-android-compose/src/main/res/values-es/strings.xml

@@ -124,6 +124,7 @@
   <string name="stream_compose_message_deleted_preview">"Mensaje eliminado"</string>
   <string name="stream_compose_message_item_open_thread">"Abrir hilo"</string>
   <string name="stream_compose_message_item_options">"Mostrar opciones del mensaje"</string>
+  <string name="stream_compose_message_attachment_open">"Abrir archivo adjunto"</string>
   <string name="stream_compose_message_reactions_show">"Mostrar reacciones"</string>
   <string name="stream_compose_message_list_auto_translated">"Traducido"</string>
   <string name="stream_compose_message_list_empty_messages">"Sin mensajes"</string>

stream-chat-android-compose/src/main/res/values-fr/strings.xml

@@ -124,6 +124,7 @@
   <string name="stream_compose_message_deleted_preview">"Message supprimé"</string>
   <string name="stream_compose_message_item_open_thread">"Ouvrir le fil"</string>
   <string name="stream_compose_message_item_options">"Afficher les options du message"</string>
+  <string name="stream_compose_message_attachment_open">"Ouvrir la pièce jointe"</string>
   <string name="stream_compose_message_reactions_show">"Afficher les réactions"</string>
   <string name="stream_compose_message_list_auto_translated">"Traduit"</string>
   <string name="stream_compose_message_list_empty_messages">"Aucun message"</string>

stream-chat-android-compose/src/main/res/values-hi/strings.xml

@@ -184,6 +184,7 @@
   <string name="stream_compose_message_deleted_preview">"मैसेज हटा दिया गया"</string>
   <string name="stream_compose_message_item_open_thread">"थ्रेड खोलें"</string>
   <string name="stream_compose_message_item_options">"संदेश के विकल्प दिखाएँ"</string>
+  <string name="stream_compose_message_attachment_open">"अटैचमेंट खोलें"</string>
   <string name="stream_compose_message_reactions_show">"प्रतिक्रियाएँ दिखाएँ"</string>
   <string name="stream_compose_message_list_auto_translated">"अनुवादित"</string>
   <string name="stream_compose_message_list_empty_messages">"कोई मैसेज नहीं"</string>

stream-chat-android-compose/src/main/res/values-in/strings.xml

@@ -124,6 +124,7 @@
   <string name="stream_compose_message_deleted_preview">"Pesan dihapus"</string>
   <string name="stream_compose_message_item_open_thread">"Buka utas"</string>
   <string name="stream_compose_message_item_options">"Tampilkan opsi pesan"</string>
+  <string name="stream_compose_message_attachment_open">"Buka lampiran"</string>
   <string name="stream_compose_message_reactions_show">"Tampilkan reaksi"</string>
   <string name="stream_compose_message_list_auto_translated">"Diterjemahkan"</string>
   <string name="stream_compose_message_list_empty_messages">"Tidak ada pesan"</string>

stream-chat-android-compose/src/main/res/values-it/strings.xml

@@ -184,6 +184,7 @@
   <string name="stream_compose_message_deleted_preview">"Messaggio cancellato"</string>
   <string name="stream_compose_message_item_open_thread">"Apri thread"</string>
   <string name="stream_compose_message_item_options">"Mostra opzioni messaggio"</string>
+  <string name="stream_compose_message_attachment_open">"Apri allegato"</string>
   <string name="stream_compose_message_reactions_show">"Mostra reazioni"</string>
   <string name="stream_compose_message_list_auto_translated">"Tradotto"</string>
   <string name="stream_compose_message_list_empty_messages">"Nessun messaggio"</string>

stream-chat-android-compose/src/main/res/values-ja/strings.xml

@@ -136,6 +136,7 @@
   <string name="stream_compose_message_deleted_preview">"メッセージは削除されました"</string>
   <string name="stream_compose_message_item_open_thread">"スレッドを開く"</string>
   <string name="stream_compose_message_item_options">"メッセージのオプションを表示"</string>
+  <string name="stream_compose_message_attachment_open">"添付ファイルを開く"</string>
   <string name="stream_compose_message_reactions_show">"リアクションを表示"</string>
   <string name="stream_compose_message_list_auto_translated">"翻訳済み"</string>
   <string name="stream_compose_message_list_empty_messages">"メッセージはありません"</string>

stream-chat-android-compose/src/main/res/values-ko/strings.xml

@@ -136,6 +136,7 @@
   <string name="stream_compose_message_deleted_preview">"메시지가 삭제되었습니다"</string>
   <string name="stream_compose_message_item_open_thread">"스레드 열기"</string>
   <string name="stream_compose_message_item_options">"메시지 옵션 표시"</string>
+  <string name="stream_compose_message_attachment_open">"첨부파일 열기"</string>
   <string name="stream_compose_message_reactions_show">"반응 보기"</string>
   <string name="stream_compose_message_list_auto_translated">"번역됨"</string>
   <string name="stream_compose_message_list_empty_messages">"메시지 없음"</string>