Update MessageRenderer class

app/src/main/java/chat/rocket/android/renderer/MessageRenderer.java

-package chat.rocket.android.renderer;
-
-import android.content.Context;
-import android.view.View;
-import android.widget.TextView;
-import chat.rocket.android.R;
-import chat.rocket.android.helper.DateTime;
-import chat.rocket.android.helper.TextUtils;
-import chat.rocket.android.widget.AbsoluteUrl;
-import chat.rocket.android.widget.RocketChatAvatar;
-import chat.rocket.android.widget.message.RocketChatMessageAttachmentsLayout;
-import chat.rocket.android.widget.message.RocketChatMessageLayout;
-import chat.rocket.android.widget.message.RocketChatMessageUrlsLayout;
-import chat.rocket.core.SyncState;
-import chat.rocket.core.models.Attachment;
-import chat.rocket.core.models.Message;
-import chat.rocket.core.models.WebContent;
-import java.util.List;
-
-/**
- * Renderer for RealmMessage model.
- */
-public class MessageRenderer extends AbstractRenderer<Message> {
-  private final UserRenderer userRenderer;
-  private final boolean autoloadImages;
-
-  public MessageRenderer(Context context, Message message, boolean autoloadImages) {
-    super(context, message);
-    userRenderer = new UserRenderer(context, message.getUser());
-    this.autoloadImages = autoloadImages;
-  }
-
-  /**
-   * show Avatar image.
-   */
-  public MessageRenderer avatarInto(RocketChatAvatar rocketChatAvatar, AbsoluteUrl absoluteUrl) {
-    if (!shouldHandle(rocketChatAvatar)) {
-      return this;
-    }
-
-    if (TextUtils.isEmpty(object.getAvatar())) {
-      userRenderer.avatarInto(rocketChatAvatar, absoluteUrl);
-      // Avatar from oauth providers
-    } else {
-      rocketChatAvatar.loadImage(object.getAvatar());
-    }
-    return this;
-  }
-
-  /**
-   * show Username in textView.
-   */
-  public MessageRenderer usernameInto(TextView usernameTextView, TextView subUsernameTextView) {
-    if (TextUtils.isEmpty(object.getAlias())) {
-      userRenderer.usernameInto(usernameTextView);
-      if (subUsernameTextView != null) {
-        subUsernameTextView.setVisibility(View.GONE);
-      }
-    } else {
-      aliasAndUsernameInto(usernameTextView, subUsernameTextView);
-    }
-    return this;
-  }
-
-  /**
-   * show timestamp in textView.
-   */
-  public MessageRenderer timestampInto(TextView textView) {
-    if (!shouldHandle(textView)) {
-      return this;
-    }
-
-    switch (object.getSyncState()) {
-      case SyncState.SYNCING:
-        textView.setText(R.string.sending);
-        break;
-      case SyncState.NOT_SYNCED:
-        textView.setText(R.string.not_synced);
-        break;
-      case SyncState.FAILED:
-        textView.setText(R.string.failed_to_sync);
-        break;
-      default:
-        textView.setText(DateTime.fromEpocMs(object.getTimestamp(), DateTime.Format.TIME));
-        break;
-    }
-    return this;
-  }
-
-  /**
-   * show body in RocketChatMessageLayout.
-   */
-  public MessageRenderer bodyInto(RocketChatMessageLayout rocketChatMessageLayout) {
-    if (!shouldHandle(rocketChatMessageLayout)) {
-      return this;
-    }
-
-    rocketChatMessageLayout.setText(object.getMessage());
-    return this;
-  }
-
-  /**
-   * show urls in RocketChatMessageUrlsLayout.
-   */
-  public MessageRenderer urlsInto(RocketChatMessageUrlsLayout urlsLayout) {
-    if (!shouldHandle(urlsLayout)) {
-      return this;
-    }
-
-    List<WebContent> webContents = object.getWebContents();
-    if (webContents == null || webContents.size() == 0) {
-      urlsLayout.setVisibility(View.GONE);
-    } else {
-      urlsLayout.setVisibility(View.VISIBLE);
-      urlsLayout.setUrls(webContents, autoloadImages);
-    }
-    return this;
-  }
-
-  /**
-   * show urls in RocketChatMessageUrlsLayout.
-   */
-  public MessageRenderer attachmentsInto(RocketChatMessageAttachmentsLayout attachmentsLayout, AbsoluteUrl absoluteUrl) {
-    if (!shouldHandle(attachmentsLayout)) {
-      return this;
-    }
-
-    List<Attachment> attachments = object.getAttachments();
-    if (attachments == null || attachments.size() == 0) {
-      attachmentsLayout.setVisibility(View.GONE);
-    } else {
-      attachmentsLayout.setVisibility(View.VISIBLE);
-      attachmentsLayout.setAbsoluteUrl(absoluteUrl);
-      attachmentsLayout.setAttachments(attachments, autoloadImages);
-    }
-    return this;
-  }
-
-  private void aliasAndUsernameInto(TextView aliasTextView, TextView usernameTextView) {
-    if (shouldHandle(aliasTextView)) {
-      aliasTextView.setText(object.getAlias());
-    }
-
-    if (shouldHandle(usernameTextView)) {
-      if (object.getUser() != null) {
-        usernameTextView.setText("@" + object.getUser().getUsername());
-        usernameTextView.setVisibility(View.VISIBLE);
-      } else {
-        usernameTextView.setVisibility(View.GONE);
-      }
-    }
-  }
-
-}
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app/src/main/java/chat/rocket/android/renderer/MessageRenderer.kt

+package chat.rocket.android.renderer
+
+import android.view.View
+import android.widget.TextView
+import chat.rocket.android.R
+import chat.rocket.android.helper.DateTime
+import chat.rocket.android.helper.RocketChatUserAvatar
+import chat.rocket.android.widget.AbsoluteUrl
+import chat.rocket.android.widget.RocketChatAvatar
+import chat.rocket.android.widget.message.RocketChatMessageAttachmentsLayout
+import chat.rocket.android.widget.message.RocketChatMessageLayout
+import chat.rocket.android.widget.message.RocketChatMessageUrlsLayout
+import chat.rocket.core.SyncState
+import chat.rocket.core.models.Message
+
+class MessageRenderer(val message: Message, val autoLoadImage: Boolean) {
+
+    /**
+     * Show user's avatar image in RocketChatAvatar widget.
+     */
+    fun showAvatar(rocketChatAvatarWidget: RocketChatAvatar, hostname: String) {
+        if (message.avatar != null) {
+            // Load user's avatar image from Oauth provider URI.
+            rocketChatAvatarWidget.loadImage(message.avatar)
+        } else {
+            // Load user's avatar image from Rocket.Chat URI (only if username is not null).
+            val username: String? = message.user?.username
+            if (username != null) {
+                rocketChatAvatarWidget.loadImage(RocketChatUserAvatar(hostname, username).imageUri)
+            }
+            /**
+             * TODO Load default image for nullable username.
+             */
+        }
+    }
+
+    /**
+     * Show username in textView.
+     */
+    fun showUsername(usernameTextView: TextView, subUsernameTextView: TextView?) {
+        if (message.alias == null) {
+            usernameTextView.text = message.user?.username ?: usernameTextView.context.getText(R.string.user_not_found)
+            if (subUsernameTextView != null)
+                subUsernameTextView.visibility = View.GONE
+        } else {
+            usernameTextView.text = message.alias
+            if (subUsernameTextView != null) {
+                if (message.user != null) {
+                    subUsernameTextView.text = "@" + message.user?.username
+                    subUsernameTextView.visibility = View.VISIBLE
+                } else {
+                    subUsernameTextView.visibility = View.GONE
+                }
+            }
+        }
+    }
+
+    /**
+     * Show timestamp or message state in textView.
+     */
+    fun showTimestampOrMessageState(textView: TextView) {
+        when (message.syncState) {
+            SyncState.SYNCING -> textView.text = textView.context.getText(R.string.sending)
+            SyncState.NOT_SYNCED -> textView.text = textView.context.getText(R.string.not_synced)
+            SyncState.FAILED -> textView.text = textView.context.getText(R.string.failed_to_sync)
+            else -> textView.text = DateTime.fromEpocMs(message.timestamp, DateTime.Format.TIME)
+        }
+    }
+
+    /**
+     * Show body in RocketChatMessageLayout widget.
+     */
+    fun showBody(rocketChatMessageLayout: RocketChatMessageLayout) {
+        rocketChatMessageLayout.setText(message.message)
+    }
+
+    /**
+     * Show urls in RocketChatMessageUrlsLayout widget.
+     */
+    fun showUrl(rocketChatMessageUrlsLayout: RocketChatMessageUrlsLayout) {
+        val webContents = message.webContents
+        if (webContents == null || webContents.isEmpty()) {
+            rocketChatMessageUrlsLayout.visibility = View.GONE
+        } else {
+            rocketChatMessageUrlsLayout.setUrls(webContents, autoLoadImage)
+            rocketChatMessageUrlsLayout.visibility = View.VISIBLE
+        }
+    }
+
+    /**
+     * show attachments in RocketChatMessageAttachmentsLayout widget.
+     */
+    fun showAttachment(rocketChatMessageAttachmentsLayout: RocketChatMessageAttachmentsLayout, absoluteUrl: AbsoluteUrl?) {
+        val attachments = message.attachments
+        if (attachments == null || attachments.isEmpty()) {
+            rocketChatMessageAttachmentsLayout.visibility = View.GONE
+        } else {
+            rocketChatMessageAttachmentsLayout.setAbsoluteUrl(absoluteUrl)
+            rocketChatMessageAttachmentsLayout.setAttachments(attachments, autoLoadImage)
+            rocketChatMessageAttachmentsLayout.visibility = View.VISIBLE
+        }
+    }
+}
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