[AND-287] Add component factory for AttachmentsPicker send button.

CHANGELOG.md

@@ -90,6 +90,7 @@
 - Create thread list component factories. [#5602](https://github.com/GetStream/stream-chat-android/pull/5602)
 - Create pinned message list component factories. [#5603](https://github.com/GetStream/stream-chat-android/pull/5603)
 - Create search input stateless component factories. [#5604](https://github.com/GetStream/stream-chat-android/pull/5604)
+- Create attachments picker send button component factory. [#5607](https://github.com/GetStream/stream-chat-android/pull/5607)
 
 ### ✅ Added
 

stream-chat-android-compose/api/stream-chat-android-compose.api

@@ -2103,6 +2103,7 @@ public final class io/getstream/chat/android/compose/ui/theme/ChannelOptionsThem
 }
 
 public abstract interface class io/getstream/chat/android/compose/ui/theme/ChatComponentFactory {
+	public abstract fun AttachmentsPickerSendButton (ZLkotlin/jvm/functions/Function0;Landroidx/compose/runtime/Composer;I)V
 	public abstract fun Avatar--oyy2HM (Landroidx/compose/ui/Modifier;Ljava/lang/String;Ljava/lang/String;Landroidx/compose/ui/graphics/Shape;Landroidx/compose/ui/text/TextStyle;Landroidx/compose/ui/graphics/painter/Painter;Ljava/lang/String;JLkotlin/jvm/functions/Function0;Landroidx/compose/runtime/Composer;I)V
 	public abstract fun ChannelAvatar (Landroidx/compose/ui/Modifier;Lio/getstream/chat/android/models/Channel;Lio/getstream/chat/android/models/User;Lkotlin/jvm/functions/Function0;Landroidx/compose/runtime/Composer;I)V
 	public abstract fun ChannelItemCenterContent (Landroidx/compose/foundation/layout/RowScope;Lio/getstream/chat/android/compose/state/channels/list/ItemState$ChannelItemState;Lio/getstream/chat/android/models/User;Landroidx/compose/runtime/Composer;I)V
@@ -2228,6 +2229,7 @@ public abstract interface class io/getstream/chat/android/compose/ui/theme/ChatC
 }
 
 public final class io/getstream/chat/android/compose/ui/theme/ChatComponentFactory$DefaultImpls {
+	public static fun AttachmentsPickerSendButton (Lio/getstream/chat/android/compose/ui/theme/ChatComponentFactory;ZLkotlin/jvm/functions/Function0;Landroidx/compose/runtime/Composer;I)V
 	public static fun Avatar--oyy2HM (Lio/getstream/chat/android/compose/ui/theme/ChatComponentFactory;Landroidx/compose/ui/Modifier;Ljava/lang/String;Ljava/lang/String;Landroidx/compose/ui/graphics/Shape;Landroidx/compose/ui/text/TextStyle;Landroidx/compose/ui/graphics/painter/Painter;Ljava/lang/String;JLkotlin/jvm/functions/Function0;Landroidx/compose/runtime/Composer;I)V
 	public static fun ChannelAvatar (Lio/getstream/chat/android/compose/ui/theme/ChatComponentFactory;Landroidx/compose/ui/Modifier;Lio/getstream/chat/android/models/Channel;Lio/getstream/chat/android/models/User;Lkotlin/jvm/functions/Function0;Landroidx/compose/runtime/Composer;I)V
 	public static fun ChannelItemCenterContent (Lio/getstream/chat/android/compose/ui/theme/ChatComponentFactory;Landroidx/compose/foundation/layout/RowScope;Lio/getstream/chat/android/compose/state/channels/list/ItemState$ChannelItemState;Lio/getstream/chat/android/models/User;Landroidx/compose/runtime/Composer;I)V

stream-chat-android-compose/src/main/java/io/getstream/chat/android/compose/ui/messages/attachments/AttachmentsPicker.kt

@@ -227,26 +227,41 @@ internal fun AttachmentPickerOptions(
 
         Spacer(modifier = Modifier.weight(1f))
 
-        IconButton(
-            enabled = hasPickedAttachments,
+        ChatTheme.componentFactory.AttachmentsPickerSendButton(
+            hasPickedAttachments = hasPickedAttachments,
             onClick = onSendAttachmentsClick,
-            content = {
-                val layoutDirection = LocalLayoutDirection.current
-
-                Icon(
-                    modifier = Modifier
-                        .weight(1f)
-                        .mirrorRtl(layoutDirection = layoutDirection)
-                        .testTag("Stream_AttachmentPickerSendButton"),
-                    painter = painterResource(id = R.drawable.stream_compose_ic_left),
-                    contentDescription = stringResource(id = R.string.stream_compose_send_attachment),
-                    tint = if (hasPickedAttachments) {
-                        ChatTheme.colors.primaryAccent
-                    } else {
-                        ChatTheme.colors.textLowEmphasis
-                    },
-                )
-            },
         )
     }
 }
+
+/**
+ * The default "Send" button in the attachments picker heading.
+ *
+ * @param hasPickedAttachments Indicator if there are selected attachments.
+ * @param onClick The action to be taken when the button is clicked.
+ */
+@Composable
+internal fun DefaultAttachmentsPickerSendButton(
+    hasPickedAttachments: Boolean,
+    onClick: () -> Unit,
+) {
+    IconButton(
+        enabled = hasPickedAttachments,
+        onClick = onClick,
+        content = {
+            val layoutDirection = LocalLayoutDirection.current
+            Icon(
+                modifier = Modifier
+                    .mirrorRtl(layoutDirection = layoutDirection)
+                    .testTag("Stream_AttachmentPickerSendButton"),
+                painter = painterResource(id = R.drawable.stream_compose_ic_left),
+                contentDescription = stringResource(id = R.string.stream_compose_send_attachment),
+                tint = if (hasPickedAttachments) {
+                    ChatTheme.colors.primaryAccent
+                } else {
+                    ChatTheme.colors.textLowEmphasis
+                },
+            )
+        },
+    )
+}

stream-chat-android-compose/src/main/java/io/getstream/chat/android/compose/ui/theme/ChatComponentFactory.kt

@@ -107,6 +107,7 @@ import io.getstream.chat.android.compose.ui.components.suggestions.mentions.Defa
 import io.getstream.chat.android.compose.ui.components.suggestions.mentions.MentionSuggestionItem
 import io.getstream.chat.android.compose.ui.components.suggestions.mentions.MentionSuggestionList
 import io.getstream.chat.android.compose.ui.components.userreactions.UserReactions
+import io.getstream.chat.android.compose.ui.messages.attachments.DefaultAttachmentsPickerSendButton
 import io.getstream.chat.android.compose.ui.messages.composer.AttachmentsButton
 import io.getstream.chat.android.compose.ui.messages.composer.CommandsButton
 import io.getstream.chat.android.compose.ui.messages.composer.DefaultComposerInputContent
@@ -2391,4 +2392,22 @@ public interface ChatComponentFactory {
     public fun PinnedMessageListLoadingMoreContent() {
         DefaultPinnedMessageListLoadingMoreContent()
     }
+
+    /**
+     * The default 'Send' button in the attachments picker.
+     * Shown as ">" icon in the attachments picker header, enabled when there is at least one selected attachment.
+     *
+     * @param hasPickedAttachments If there are any attachments picked.
+     * @param onClick The click handler for the button.
+     */
+    @Composable
+    public fun AttachmentsPickerSendButton(
+        hasPickedAttachments: Boolean,
+        onClick: () -> Unit,
+    ) {
+        DefaultAttachmentsPickerSendButton(
+            hasPickedAttachments = hasPickedAttachments,
+            onClick = onClick,
+        )
+    }
 }