implement ui

app/src/main/java/chat/rocket/android/fragment/sidebar/SidebarMainFragment.java

@@ -2,6 +2,7 @@ package chat.rocket.android.fragment.sidebar;
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
+import android.support.v4.app.DialogFragment;
 import android.widget.CompoundButton;
 import android.widget.ImageView;
 import android.widget.LinearLayout;
@@ -10,6 +11,9 @@ import chat.rocket.android.R;
 import chat.rocket.android.RocketChatCache;
 import chat.rocket.android.api.MethodCallHelper;
 import chat.rocket.android.fragment.AbstractFragment;
+import chat.rocket.android.fragment.sidebar.dialog.AbstractAddRoomDialogFragment;
+import chat.rocket.android.fragment.sidebar.dialog.AddDirectMessageDialogFragment;
+import chat.rocket.android.fragment.sidebar.dialog.AddChannelDialogFragment;
 import chat.rocket.android.helper.LogcatIfError;
 import chat.rocket.android.helper.TextUtils;
 import chat.rocket.android.layouthelper.chatroom.RoomListManager;
@@ -91,6 +95,7 @@ public class SidebarMainFragment extends AbstractFragment {
     setupUserActionToggle();
     setupUserStatusButtons();
     setupLogoutButton();
+    setupAddChannelButton();
 
     roomListManager = new RoomListManager(
         (LinearLayout) rootView.findViewById(R.id.channels_container),
@@ -158,6 +163,24 @@ public class SidebarMainFragment extends AbstractFragment {
     }
   }
 
+  private void setupAddChannelButton() {
+    rootView.findViewById(R.id.btn_add_channel).setOnClickListener(view -> {
+      showAddRoomDialog(new AddChannelDialogFragment());
+    });
+
+    rootView.findViewById(R.id.btn_add_direct_message).setOnClickListener(view -> {
+      showAddRoomDialog(new AddDirectMessageDialogFragment());
+    });
+  }
+
+  private void showAddRoomDialog(DialogFragment dialog) {
+    Bundle args = new Bundle();
+    args.putString("serverConfigId", serverConfigId);
+    args.putString("hostname", hostname);
+    dialog.setArguments(args);
+    dialog.show(getFragmentManager(), AbstractAddRoomDialogFragment.class.getSimpleName());
+  }
+
   @Override public void onResume() {
     super.onResume();
     if (roomsObserver != null) {

app/src/main/java/chat/rocket/android/fragment/sidebar/dialog/AbstractAddRoomDialogFragment.java

+package chat.rocket.android.fragment.sidebar.dialog;
+
+import android.app.Dialog;
+import android.os.Bundle;
+import android.support.annotation.LayoutRes;
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+import chat.rocket.android.realm_helper.RealmHelper;
+import chat.rocket.android.realm_helper.RealmStore;
+import com.trello.rxlifecycle.components.support.RxAppCompatDialogFragment;
+
+public abstract class AbstractAddRoomDialogFragment extends RxAppCompatDialogFragment {
+
+  protected RealmHelper realmHelper;
+  protected String hostname;
+
+  protected @LayoutRes abstract int getLayout();
+
+  protected abstract void onSetupDialog();
+
+  @Override public void onCreate(@Nullable Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+
+    Bundle args = getArguments();
+    if (args != null) {
+      handleArgs(args);
+    }
+  }
+
+  protected void handleArgs(@NonNull Bundle args) {
+    String serverConfigId = args.getString("serverConfigId");
+    realmHelper = RealmStore.get(serverConfigId);
+    hostname = args.getString("hostname");
+  }
+
+  @Override public final void setupDialog(Dialog dialog, int style) {
+    super.setupDialog(dialog, style);
+    dialog.setContentView(getLayout());
+    onSetupDialog();
+  }
+}

app/src/main/java/chat/rocket/android/fragment/sidebar/dialog/AddChannelDialogFragment.java

+package chat.rocket.android.fragment.sidebar.dialog;
+
+import android.view.View;
+import android.widget.CompoundButton;
+import android.widget.TextView;
+import chat.rocket.android.R;
+import chat.rocket.android.helper.TextUtils;
+import com.jakewharton.rxbinding.view.RxView;
+import com.jakewharton.rxbinding.widget.RxTextView;
+
+/**
+ * add Channel, add Private-group.
+ */
+public class AddChannelDialogFragment extends AbstractAddRoomDialogFragment {
+  public AddChannelDialogFragment() {}
+
+  @Override protected int getLayout() {
+    return R.layout.dialog_add_channel;
+  }
+
+  @Override protected void onSetupDialog() {
+    View buttonAddChannel = getDialog().findViewById(R.id.btn_add_channel);
+
+    RxTextView.textChanges((TextView) getDialog().findViewById(R.id.editor_channel_name))
+        .map(text -> !TextUtils.isEmpty(text))
+        .compose(bindToLifecycle())
+        .subscribe(RxView.enabled(buttonAddChannel));
+
+    buttonAddChannel.setOnClickListener(view -> {
+      TextView channelNameText = (TextView) getDialog().findViewById(R.id.editor_channel_name);
+      String channelName = channelNameText.getText().toString();
+      boolean isPrivate = isChecked(R.id.checkbox_private);
+      boolean isReadOnly = isChecked(R.id.checkbox_read_only);
+      createChannel(channelName, isPrivate, isReadOnly);
+    });
+  }
+
+  private boolean isChecked(int viewId) {
+    CompoundButton check = (CompoundButton) getDialog().findViewById(viewId);
+    return check.isChecked();
+  }
+
+  private void createChannel(String name, boolean isPrivate, boolean isReadOnly) {
+
+  }
+}

app/src/main/java/chat/rocket/android/fragment/sidebar/dialog/AddDirectMessageDialogFragment.java

+package chat.rocket.android.fragment.sidebar.dialog;
+
+import android.view.View;
+import android.widget.AutoCompleteTextView;
+import chat.rocket.android.R;
+import chat.rocket.android.helper.TextUtils;
+import chat.rocket.android.layouthelper.sidebar.dialog.SuggestUserAdapter;
+import chat.rocket.android.model.ddp.User;
+import chat.rocket.android.realm_helper.RealmAutoCompleteAdapter;
+import com.jakewharton.rxbinding.view.RxView;
+import com.jakewharton.rxbinding.widget.RxTextView;
+import io.realm.Case;
+
+/**
+ * add Direct Message.
+ */
+public class AddDirectMessageDialogFragment extends AbstractAddRoomDialogFragment {
+  public AddDirectMessageDialogFragment() {}
+
+  @Override protected int getLayout() {
+    return R.layout.dialog_add_direct_message;
+  }
+
+  @Override protected void onSetupDialog() {
+    View buttonAddDirectMessage = getDialog().findViewById(R.id.btn_add_direct_message);
+    AutoCompleteTextView autoCompleteTextView =
+        (AutoCompleteTextView) getDialog().findViewById(R.id.editor_username);
+
+    RealmAutoCompleteAdapter<User> adapter = realmHelper.createAutoCompleteAdapter(getContext(),
+        (realm, text) -> realm.where(User.class)
+            .contains("username", text, Case.INSENSITIVE)
+            .findAllSorted("username"),
+        context -> new SuggestUserAdapter(context, hostname));
+    autoCompleteTextView.setAdapter(adapter);
+
+    RxTextView.textChanges(autoCompleteTextView)
+        .map(text -> !TextUtils.isEmpty(text))
+        .compose(bindToLifecycle())
+        .subscribe(RxView.enabled(buttonAddDirectMessage));
+
+    //buttonAddDirectMessage.setOnClick...
+  }
+}

app/src/main/java/chat/rocket/android/layouthelper/sidebar/dialog/SuggestUserAdapter.java

+package chat.rocket.android.layouthelper.sidebar.dialog;
+
+import android.content.Context;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.TextView;
+import chat.rocket.android.R;
+import chat.rocket.android.model.ddp.User;
+import chat.rocket.android.realm_helper.RealmAutoCompleteAdapter;
+import chat.rocket.android.renderer.UserRenderer;
+import java.util.Iterator;
+import java.util.List;
+
+/**
+ * adapter to suggest user names.
+ */
+public class SuggestUserAdapter extends RealmAutoCompleteAdapter<User> {
+  private final String hostname;
+
+  public SuggestUserAdapter(Context context, String hostname) {
+    super(context, R.layout.listitem_room_user, R.id.room_user_name);
+    this.hostname = hostname;
+  }
+
+  @Override protected void onBindItemView(View itemView, User user) {
+    new UserRenderer(itemView.getContext(), user)
+        .statusColorInto((ImageView) itemView.findViewById(R.id.room_user_status))
+        .avatarInto((ImageView) itemView.findViewById(R.id.room_user_avatar), hostname)
+        .usernameInto((TextView) itemView.findViewById(R.id.room_user_name));
+  }
+
+  @Override protected void filterList(List<User> users, String text) {
+    Iterator<User> itUsers = users.iterator();
+    final String prefix = text.toLowerCase();
+    while (itUsers.hasNext()) {
+      User user = itUsers.next();
+      if (!user.getUsername().toLowerCase().startsWith(prefix)) {
+        itUsers.remove();
+      }
+    }
+  }
+}

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

+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:orientation="vertical"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:minWidth="288dp"
+    android:padding="@dimen/margin_24"
+    >
+  <android.support.design.widget.TextInputLayout
+      android:id="@+id/text_input_channel_name"
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      >
+    <android.support.design.widget.TextInputEditText
+        android:id="@+id/editor_channel_name"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:inputType="textWebEmailAddress"
+        android:hint="@string/dialog_add_channel_name"
+        />
+  </android.support.design.widget.TextInputLayout>
+
+  <LinearLayout
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      android:orientation="horizontal"
+      android:layout_marginTop="@dimen/margin_16"
+      android:layout_marginStart="@dimen/margin_8"
+      android:layout_marginEnd="@dimen/margin_8"
+      >
+    <CheckBox
+        android:id="@+id/checkbox_private"
+        android:layout_width="0px"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:text="@string/dialog_add_channel_private"
+        />
+
+    <CheckBox
+        android:id="@+id/checkbox_read_only"
+        android:layout_width="0px"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:text="@string/dialog_add_channel_read_only"
+        />
+  </LinearLayout>
+
+  <Space
+      android:layout_width="match_parent"
+      android:layout_height="@dimen/margin_16"
+      />
+
+  <android.support.design.widget.FloatingActionButton
+      android:id="@+id/btn_add_channel"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_gravity="end|bottom"
+      app:elevation="2dp"
+      app:fabSize="mini"
+      app:srcCompat="@drawable/ic_arrow_forward_white_24dp" />
+
+  <chat.rocket.android.widget.WaitingView
+      android:id="@+id/waiting"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_gravity="center"
+      android:visibility="gone"
+      app:dotCount="5"
+      app:dotSize="12dp" />
+
+</LinearLayout>
\ No newline at end of file

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

+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:orientation="vertical"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:minWidth="288dp"
+    android:padding="@dimen/margin_24"
+    >
+  <android.support.design.widget.TextInputLayout
+      android:id="@+id/text_input_username"
+      android:layout_width="match_parent"
+      android:layout_height="wrap_content"
+      >
+    <android.support.v7.widget.AppCompatAutoCompleteTextView
+        android:id="@+id/editor_username"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:hint="username"
+        android:completionThreshold="3"
+        />
+  </android.support.design.widget.TextInputLayout>
+
+  <Space
+      android:layout_width="match_parent"
+      android:layout_height="@dimen/margin_16"
+      />
+
+  <android.support.design.widget.FloatingActionButton
+      android:id="@+id/btn_add_direct_message"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_gravity="end|bottom"
+      app:elevation="2dp"
+      app:fabSize="mini"
+      app:srcCompat="@drawable/ic_arrow_forward_white_24dp" />
+
+  <chat.rocket.android.widget.WaitingView
+      android:id="@+id/waiting"
+      android:layout_width="wrap_content"
+      android:layout_height="wrap_content"
+      android:layout_gravity="center"
+      android:visibility="gone"
+      app:dotCount="5"
+      app:dotSize="12dp" />
+
+</LinearLayout>
\ No newline at end of file

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

@@ -78,6 +78,7 @@
                     android:textStyle="bold" />
 
                 <chat.rocket.android.widget.FontAwesomeButton
+                    android:id="@+id/btn_add_channel"
                     style="@style/Widget.AppCompat.Button.Borderless"
                     android:layout_width="48dp"
                     android:layout_height="48dp"
@@ -109,6 +110,7 @@
                     android:textStyle="bold" />
 
                 <chat.rocket.android.widget.FontAwesomeButton
+                    android:id="@+id/btn_add_direct_message"
                     style="@style/Widget.AppCompat.Button.Borderless"
                     android:layout_width="48dp"
                     android:layout_height="48dp"

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

@@ -7,6 +7,9 @@
     <string name="user_status_busy">Busy</string>
     <string name="user_status_invisible">Invisible</string>
     <string name="fragment_sidebar_main_logout_title">Logout</string>
+    <string name="dialog_add_channel_name">name</string>
+    <string name="dialog_add_channel_private">private</string>
+    <string name="dialog_add_channel_read_only">read only</string>
 
     <string name="start_of_conversation">Start of conversation</string>
     <string name="users_of_room_title">Members List</string>

realm-helpers/src/main/java/chat/rocket/android/realm_helper/RealmAutoCompleteAdapter.java

+package chat.rocket.android.realm_helper;
+
+import android.content.Context;
+import android.support.annotation.NonNull;
+import android.text.TextUtils;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.Filter;
+import io.realm.Realm;
+import io.realm.RealmObject;
+import io.realm.RealmResults;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * ListAdapter for AutoCompleteTextView.
+ */
+public abstract class RealmAutoCompleteAdapter<T extends RealmObject> extends ArrayAdapter<T> {
+  public interface Constructor<T extends RealmObject> {
+    RealmAutoCompleteAdapter<T> getNewInstance(Context context);
+  }
+
+  public interface RealmFilter<T extends RealmObject> {
+    RealmResults<T> filterItems(Realm realm, String text);
+  }
+
+  protected void filterList(List<T> items, String text) {
+  }
+
+  public class AutoCompleteFilter<T extends RealmObject> extends Filter {
+    private final RealmAutoCompleteAdapter<T> adapter;
+    private final RealmFilter<T> realmFilter;
+
+    /*package*/ AutoCompleteFilter(RealmAutoCompleteAdapter<T> adapter, RealmFilter<T> realmFilter) {
+      this.adapter = adapter;
+      this.realmFilter = realmFilter;
+    }
+
+    @Override protected FilterResults performFiltering(CharSequence charSequence) {
+      FilterResults results = new FilterResults();
+      if (TextUtils.isEmpty(charSequence)) {
+        results.values = Collections.emptyList();
+        results.count = 0;
+        return results;
+      }
+
+      String text = charSequence.toString();
+      List<T> filteredItems = realmHelper.executeTransactionForReadResults(realm ->
+          realmFilter.filterItems(realm, text));
+      adapter.filterList(filteredItems, text);
+      results.values = filteredItems;
+      results.count = filteredItems.size();
+
+      return results;
+    }
+
+    @Override
+    protected void publishResults(CharSequence charSequence, FilterResults filterResults) {
+      adapter.clear();
+      if (filterResults.count > 0) {
+        adapter.addAll((List<T>) filterResults.values);
+      }
+    }
+  }
+
+  private RealmHelper realmHelper;
+  private AutoCompleteFilter filter;
+
+  protected RealmAutoCompleteAdapter(Context context, int resource) {
+    super(context, resource);
+  }
+
+  protected RealmAutoCompleteAdapter(Context context, int resource, int textViewResourceId) {
+    super(context, resource, textViewResourceId);
+  }
+
+  /*package*/ RealmAutoCompleteAdapter<T> initializeWith(RealmHelper realmHelper,
+      RealmFilter<T> itemFilter) {
+    this.realmHelper = realmHelper;
+    this.filter = new AutoCompleteFilter<T>(this, itemFilter);
+    return this;
+  }
+
+  @NonNull
+  @Override public Filter getFilter() {
+    return filter;
+  }
+
+  @NonNull @Override public final View getView(int position, View convertView, ViewGroup parent) {
+    View itemView = super.getView(position, convertView, parent);
+    onBindItemView(itemView, getItem(position));
+    return itemView;
+  }
+
+  protected abstract void onBindItemView(View itemView, T model);
+}

realm-helpers/src/main/java/chat/rocket/android/realm_helper/RealmHelper.java

@@ -142,4 +142,11 @@ public class RealmHelper {
       RealmModelListAdapter.Constructor<T, VM, VH> constructor) {
     return constructor.getNewInstance(context).initializeWith(this, query);
   }
+
+  public <T extends RealmObject> RealmAutoCompleteAdapter<T> createAutoCompleteAdapter(
+      Context context,
+      RealmAutoCompleteAdapter.RealmFilter<T> filter,
+      RealmAutoCompleteAdapter.Constructor constructor) {
+    return constructor.getNewInstance(context).initializeWith(this, filter);
+  }
 }