net.simno.klingar.ui.MiniPlayerController.java Source code

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Here is the source code for net.simno.klingar.ui.MiniPlayerController.java

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/*
 * Copyright (C) 2017 Simon Norberg
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.simno.klingar.ui;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.media.session.PlaybackStateCompat;
import android.support.v4.media.session.PlaybackStateCompat.State;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

import net.simno.klingar.KlingarApp;
import net.simno.klingar.R;
import net.simno.klingar.data.model.Track;
import net.simno.klingar.playback.MusicController;
import net.simno.klingar.playback.QueueManager;
import net.simno.klingar.util.Rx;

import javax.inject.Inject;

import butterknife.BindString;
import butterknife.BindView;
import butterknife.OnClick;

import static com.bluelinelabs.conductor.rxlifecycle2.ControllerEvent.DETACH;

public class MiniPlayerController extends BaseController {

    private static final int[] PLAY = { -R.attr.state_pause };
    private static final int[] PAUSE = { R.attr.state_pause };

    @BindView(R.id.miniplayer_track_title)
    TextView trackTitle;
    @BindView(R.id.miniplayer_artist_title)
    TextView artistTitle;
    @BindView(R.id.miniplayer_play_pause)
    ImageView playPauseButton;
    @BindString(R.string.description_play)
    String descPlay;
    @BindString(R.string.description_pause)
    String descPause;
    @Inject
    MusicController musicController;
    @Inject
    QueueManager queueManager;
    @Inject
    Rx rx;

    public MiniPlayerController(Bundle args) {
        super(args);
    }

    @Override
    protected int getLayoutResource() {
        return R.layout.controller_miniplayer;
    }

    @Override
    protected void injectDependencies() {
        if (getActivity() != null) {
            KlingarApp.get(getActivity()).component().inject(this);
        }
    }

    @Override
    protected void onAttach(@NonNull View view) {
        super.onAttach(view);
        observePlaybackState();
    }

    @OnClick(R.id.miniplayer_play_pause)
    void onClickPlayPause() {
        musicController.playPause();
    }

    private void observePlaybackState() {
        disposables.add(musicController.state().compose(bindUntilEvent(DETACH)).compose(rx.flowableSchedulers())
                .subscribe(this::updatePlayButton, Rx::onError));
        disposables.add(queueManager.queue().compose(bindUntilEvent(DETACH)).compose(rx.flowableSchedulers())
                .subscribe(pair -> updateTrackInfo(pair.first.get(pair.second)), Rx::onError));
    }

    private void updatePlayButton(@State int state) {
        if (state == PlaybackStateCompat.STATE_PLAYING || state == PlaybackStateCompat.STATE_BUFFERING) {
            playPauseButton.setImageState(PAUSE, true);
            playPauseButton.setContentDescription(descPause);
        } else {
            playPauseButton.setImageState(PLAY, true);
            playPauseButton.setContentDescription(descPlay);
        }
    }

    private void updateTrackInfo(@NonNull Track track) {
        trackTitle.setText(track.title());
        artistTitle.setText(" \u2022 ");
        artistTitle.append(track.artistTitle());
    }
}