FIX #86 render system message.

app/src/main/java/chat/rocket/android/layouthelper/chatroom/MessageViewHolder.java → app/src/main/java/chat/rocket/android/layouthelper/chatroom/AbstractMessageViewHolder.java

@@ -10,41 +10,27 @@ import chat.rocket.android.helper.DateTime;
 import chat.rocket.android.helper.TextUtils;
 import chat.rocket.android.model.SyncState;
 import chat.rocket.android.realm_helper.RealmModelViewHolder;
-import chat.rocket.android.renderer.MessageRenderer;
-import chat.rocket.android.widget.message.RocketChatMessageAttachmentsLayout;
-import chat.rocket.android.widget.message.RocketChatMessageLayout;
-import chat.rocket.android.widget.message.RocketChatMessageUrlsLayout;
 
-/**
- * View holder of NORMAL chat message.
- */
-public class MessageViewHolder extends RealmModelViewHolder<PairedMessage> {
-  private final ImageView avatar;
-  private final TextView username;
-  private final TextView timestamp;
-  private final View userAndTimeContainer;
-  private final String hostname;
-  private final String userId;
-  private final String token;
-  private final RocketChatMessageLayout body;
-  private final RocketChatMessageUrlsLayout urls;
-  private final RocketChatMessageAttachmentsLayout attachments;
-  private final View newDayContainer;
-  private final TextView newDayText;
+public abstract class AbstractMessageViewHolder extends RealmModelViewHolder<PairedMessage> {
+  protected final ImageView avatar;
+  protected final TextView username;
+  protected final TextView timestamp;
+  protected final View userAndTimeContainer;
+  protected final String hostname;
+  protected final String userId;
+  protected final String token;
+  protected final View newDayContainer;
+  protected final TextView newDayText;
 
   /**
    * constructor WITH hostname.
    */
-  public MessageViewHolder(View itemView, String hostname, String userId, String token) {
+  public AbstractMessageViewHolder(View itemView, String hostname, String userId, String token) {
     super(itemView);
     avatar = (ImageView) itemView.findViewById(R.id.user_avatar);
     username = (TextView) itemView.findViewById(R.id.username);
     timestamp = (TextView) itemView.findViewById(R.id.timestamp);
     userAndTimeContainer = itemView.findViewById(R.id.user_and_timestamp_container);
-    body = (RocketChatMessageLayout) itemView.findViewById(R.id.message_body);
-    urls = (RocketChatMessageUrlsLayout) itemView.findViewById(R.id.message_urls);
-    attachments =
-        (RocketChatMessageAttachmentsLayout) itemView.findViewById(R.id.message_attachments);
     newDayContainer = itemView.findViewById(R.id.newday_container);
     newDayText = (TextView) itemView.findViewById(R.id.newday_text);
     this.hostname = hostname;
@@ -55,14 +41,8 @@ public class MessageViewHolder extends RealmModelViewHolder<PairedMessage> {
   /**
    * bind the view model.
    */
-  public void bind(PairedMessage pairedMessage) {
-    new MessageRenderer(itemView.getContext(), pairedMessage.target)
-        .avatarInto(avatar, hostname)
-        .usernameInto(username)
-        .timestampInto(timestamp)
-        .bodyInto(body)
-        .urlsInto(urls)
-        .attachmentsInto(attachments, hostname, userId, token);
+  public final void bind(PairedMessage pairedMessage) {
+    bindMessage(pairedMessage);
 
     if (pairedMessage.target != null) {
       int syncstate = pairedMessage.target.getSyncState();
@@ -76,6 +56,8 @@ public class MessageViewHolder extends RealmModelViewHolder<PairedMessage> {
     renderNewDayAndSequential(pairedMessage);
   }
 
+  protected abstract void bindMessage(PairedMessage pairedMessage);
+
   private void renderNewDayAndSequential(PairedMessage pairedMessage) {
     //see Rocket.Chat:packages/rocketchat-livechat/app/client/views/message.coffee
     if (!pairedMessage.hasSameDate()) {
@@ -92,16 +74,25 @@ public class MessageViewHolder extends RealmModelViewHolder<PairedMessage> {
   }
 
   private void setSequential(boolean sequential) {
+    if (avatar != null) {
       if (sequential) {
         avatar.setVisibility(View.INVISIBLE);
-      userAndTimeContainer.setVisibility(View.GONE);
       } else {
         avatar.setVisibility(View.VISIBLE);
+      }
+    }
+
+    if (userAndTimeContainer != null) {
+      if (sequential) {
+        userAndTimeContainer.setVisibility(View.GONE);
+      } else {
         userAndTimeContainer.setVisibility(View.VISIBLE);
       }
     }
+  }
 
   private void setNewDay(@Nullable String text) {
+    if (newDayContainer != null) {
       if (TextUtils.isEmpty(text)) {
         newDayContainer.setVisibility(View.GONE);
       } else {
@@ -109,4 +100,5 @@ public class MessageViewHolder extends RealmModelViewHolder<PairedMessage> {
         newDayContainer.setVisibility(View.VISIBLE);
       }
     }
+  }
 }

app/src/main/java/chat/rocket/android/layouthelper/chatroom/MessageListAdapter.java

@@ -7,6 +7,7 @@ import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
 import chat.rocket.android.R;
+import chat.rocket.android.helper.TextUtils;
 import chat.rocket.android.layouthelper.ExtRealmModelListAdapter;
 import chat.rocket.android.model.ddp.Message;
 
@@ -14,7 +15,12 @@ import chat.rocket.android.model.ddp.Message;
  * target list adapter for chat room.
  */
 public class MessageListAdapter
-    extends ExtRealmModelListAdapter<Message, PairedMessage, MessageViewHolder> {
+    extends ExtRealmModelListAdapter<Message, PairedMessage, AbstractMessageViewHolder> {
+
+  private static final int VIEW_TYPE_UNKNOWN = 0;
+  private static final int VIEW_TYPE_NORMAL_MESSAGE = 1;
+  private static final int VIEW_TYPE_SYSTEM_MESSAGE = 2;
+
   private final String hostname;
   private final String userId;
   private final String token;
@@ -53,17 +59,43 @@ public class MessageListAdapter
 
   @Override
   protected int getRealmModelViewType(PairedMessage model) {
-    return 0;
+    if (model.target != null) {
+      if (TextUtils.isEmpty(model.target.getType())) {
+        return VIEW_TYPE_NORMAL_MESSAGE;
+      } else {
+        return VIEW_TYPE_SYSTEM_MESSAGE;
+      }
+    }
+    return VIEW_TYPE_UNKNOWN;
   }
 
   @Override
   protected int getRealmModelLayout(int viewType) {
-    return R.layout.list_item_message;
+    switch (viewType) {
+      case VIEW_TYPE_NORMAL_MESSAGE:
+        return R.layout.list_item_normal_message;
+      case VIEW_TYPE_SYSTEM_MESSAGE:
+        return R.layout.list_item_system_message;
+      default:
+        return R.layout.simple_screen;
+    }
   }
 
   @Override
-  protected MessageViewHolder onCreateRealmModelViewHolder(int viewType, View itemView) {
-    return new MessageViewHolder(itemView, hostname, userId, token);
+  protected AbstractMessageViewHolder onCreateRealmModelViewHolder(int viewType, View itemView) {
+    switch (viewType) {
+      case VIEW_TYPE_NORMAL_MESSAGE:
+        return new MessageNormalViewHolder(itemView, hostname, userId, token);
+      case VIEW_TYPE_SYSTEM_MESSAGE:
+        return new MessageSystemViewHolder(itemView, hostname, userId, token);
+      default:
+        return new AbstractMessageViewHolder(itemView, hostname, userId, token) {
+          @Override
+          protected void bindMessage(PairedMessage pairedMessage) {
+
+          }
+        };
+    }
   }
 
   @Override

app/src/main/java/chat/rocket/android/layouthelper/chatroom/MessageNormalViewHolder.java

+package chat.rocket.android.layouthelper.chatroom;
+
+import android.view.View;
+
+import chat.rocket.android.R;
+import chat.rocket.android.renderer.MessageRenderer;
+import chat.rocket.android.widget.message.RocketChatMessageAttachmentsLayout;
+import chat.rocket.android.widget.message.RocketChatMessageLayout;
+import chat.rocket.android.widget.message.RocketChatMessageUrlsLayout;
+
+/**
+ * View holder of NORMAL chat message.
+ */
+public class MessageNormalViewHolder extends AbstractMessageViewHolder {
+  private final RocketChatMessageLayout body;
+  private final RocketChatMessageUrlsLayout urls;
+  private final RocketChatMessageAttachmentsLayout attachments;
+
+  /**
+   * constructor WITH hostname.
+   */
+  public MessageNormalViewHolder(View itemView, String hostname, String userId, String token) {
+    super(itemView, hostname, userId, token);
+    body = (RocketChatMessageLayout) itemView.findViewById(R.id.message_body);
+    urls = (RocketChatMessageUrlsLayout) itemView.findViewById(R.id.message_urls);
+    attachments =
+        (RocketChatMessageAttachmentsLayout) itemView.findViewById(R.id.message_attachments);
+  }
+
+  @Override
+  protected void bindMessage(PairedMessage pairedMessage) {
+    new MessageRenderer(itemView.getContext(), pairedMessage.target)
+        .avatarInto(avatar, hostname)
+        .usernameInto(username)
+        .timestampInto(timestamp)
+        .bodyInto(body)
+        .urlsInto(urls)
+        .attachmentsInto(attachments, hostname, userId, token);
+  }
+}

app/src/main/java/chat/rocket/android/layouthelper/chatroom/MessageSystemViewHolder.java

+package chat.rocket.android.layouthelper.chatroom;
+
+import android.view.View;
+import android.widget.TextView;
+
+import chat.rocket.android.R;
+import chat.rocket.android.renderer.MessageRenderer;
+
+/**
+ * View holder of NORMAL chat message.
+ */
+public class MessageSystemViewHolder extends AbstractMessageViewHolder {
+  private final TextView body;
+
+  /**
+   * constructor WITH hostname.
+   */
+  public MessageSystemViewHolder(View itemView, String hostname, String userId, String token) {
+    super(itemView, hostname, userId, token);
+    body = (TextView) itemView.findViewById(R.id.message_body);
+  }
+
+  @Override
+  protected void bindMessage(PairedMessage pairedMessage) {
+    new MessageRenderer(itemView.getContext(), pairedMessage.target)
+        .avatarInto(avatar, hostname)
+        .usernameInto(username)
+        .timestampInto(timestamp);
+
+    if (pairedMessage.target != null) {
+      body.setText(MessageType.parse(pairedMessage.target.getType())
+          .getString(body.getContext(), pairedMessage.target));
+    }
+  }
+}

app/src/main/java/chat/rocket/android/layouthelper/chatroom/MessageType.java

+package chat.rocket.android.layouthelper.chatroom;
+
+import android.content.Context;
+
+import chat.rocket.android.R;
+import chat.rocket.android.model.ddp.Message;
+
+/**
+ * message type.
+ */
+public enum MessageType {
+  ROOM_NAME_CHANGED("r") {
+    @Override
+    public String getString(Context context, Message message) {
+      return context.getString(R.string.message_room_name_changed,
+          message.getMessage(), message.getUser().getUsername());
+    }
+  },
+  USER_ADDED("au") {
+    @Override
+    public String getString(Context context, Message message) {
+      return context.getString(R.string.message_user_added_by,
+          message.getMessage(), message.getUser().getUsername());
+    }
+  },
+  USER_REMOVED("ru") {
+    @Override
+    public String getString(Context context, Message message) {
+      return context.getString(R.string.message_user_removed_by,
+          message.getMessage(), message.getUser().getUsername());
+    }
+  },
+  USER_JOINED("uj") {
+    @Override
+    public String getString(Context context, Message message) {
+      return context.getString(R.string.message_user_joined_channel);
+    }
+  },
+  USER_LEFT("ul") {
+    @Override
+    public String getString(Context context, Message message) {
+      return context.getString(R.string.message_user_left);
+    }
+  },
+  WELCOME("wm") {
+    @Override
+    public String getString(Context context, Message message) {
+      return context.getString(R.string.message_welcome, message.getUser().getUsername());
+    }
+  },
+  MESSAGE_REMOVED("rm") {
+    @Override
+    public String getString(Context context, Message message) {
+      return context.getString(R.string.message_removed);
+    }
+  },
+  UNSPECIFIED("");
+  //------------
+
+  private final String value;
+
+  MessageType(String value) {
+    this.value = value;
+  }
+
+  public String getValue() {
+    return value;
+  }
+
+  public static MessageType parse(String value) {
+    for (MessageType type : MessageType.values()) {
+      if (type.value.equals(value)) return type;
+    }
+    return UNSPECIFIED;
+  }
+
+  public String getString(Context context, Message message) {
+    return "";
+  }
+}

app/src/main/res/layout/list_item_system_message.xml

+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:theme="@style/AppTheme"
+        >
+
+    <include layout="@layout/list_item_message_newday"/>
+
+    <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal"
+            >
+
+        <ImageView
+                android:id="@+id/user_avatar"
+                android:layout_width="32dp"
+                android:layout_height="32dp"
+                android:layout_margin="8dp"
+                tools:src="@drawable/ic_default_avatar"
+                />
+
+        <LinearLayout
+                android:layout_width="0px"
+                android:layout_height="wrap_content"
+                android:layout_marginEnd="8dp"
+                android:layout_weight="1"
+                android:orientation="vertical"
+                >
+
+            <LinearLayout
+                    android:id="@+id/user_and_timestamp_container"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal"
+                    >
+
+                <TextView
+                        android:id="@+id/username"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:textStyle="bold"
+                        tools:text="John Doe"
+                        />
+
+                <Space
+                        android:layout_width="@dimen/margin_8"
+                        android:layout_height="wrap_content"
+                        />
+
+                <TextView
+                        android:id="@+id/timestamp"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:enabled="false"
+                        tools:text="12:34"
+                        />
+            </LinearLayout>
+
+            <TextView
+                    android:id="@+id/message_body"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:textAppearance="@style/TextAppearance.AppCompat.Body1"
+                    android:textStyle="italic"
+                    android:enabled="false"
+                    />
+        </LinearLayout>
+    </LinearLayout>
+</LinearLayout>
\ No newline at end of file

app/src/main/res/values/system_message_strings.xml

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="message_room_name_changed">Room name changed to: %1$s by %2$s</string>
+    <string name="message_user_added_by">User %1$s added by %2$s</string>
+    <string name="message_user_removed_by">User %1$s removed by %2$s</string>
+    <string name="message_user_left">Has left the channel.</string>
+    <string name="message_user_joined_channel">Has joined the channel.</string>
+    <string name="message_welcome">Welcome %s</string>
+    <string name="message_removed">Message removed</string>
+</resources>
\ No newline at end of file