separate audioplayeractivity into audio and cast activities

3 files changed, 626 insertions, 599 deletions

diff --git a/app/src/main/java/de/danoeh/antennapod/activity/AudioplayerActivity.java b/app/src/main/java/de/danoeh/antennapod/activity/AudioplayerActivity.java
index 292f3d9b6..bd8e43c4e 100644
--- a/app/src/main/java/de/danoeh/antennapod/activity/AudioplayerActivity.java
+++ b/app/src/main/java/de/danoeh/antennapod/activity/AudioplayerActivity.java
@@ -1,165 +1,18 @@
 package de.danoeh.antennapod.activity;
 
-import android.app.AlertDialog;
-import android.content.DialogInterface;
 import android.content.Intent;
-import android.content.SharedPreferences;
-import android.content.res.Configuration;
-import android.os.Build;
-import android.support.annotation.Nullable;
-import android.support.design.widget.AppBarLayout;
-import android.support.v4.app.Fragment;
-import android.support.v4.app.FragmentManager;
-import android.support.v4.app.FragmentStatePagerAdapter;
-import android.support.v4.view.ViewPager;
-import android.support.v4.widget.DrawerLayout;
-import android.support.v7.app.ActionBarDrawerToggle;
-import android.support.v7.widget.Toolbar;
 import android.text.TextUtils;
 import android.util.Log;
-import android.util.TypedValue;
-import android.view.ContextMenu;
-import android.view.MenuInflater;
-import android.view.MenuItem;
-import android.view.View;
-import android.widget.AdapterView;
-import android.widget.ListView;
 
-import com.viewpagerindicator.CirclePageIndicator;
-
-import java.util.List;
-import java.util.concurrent.atomic.AtomicBoolean;
-
-import de.danoeh.antennapod.R;
-import de.danoeh.antennapod.adapter.ChaptersListAdapter;
-import de.danoeh.antennapod.adapter.NavListAdapter;
-import de.danoeh.antennapod.core.asynctask.FeedRemover;
-import de.danoeh.antennapod.core.dialog.ConfirmationDialog;
-import de.danoeh.antennapod.core.feed.EventDistributor;
-import de.danoeh.antennapod.core.feed.Feed;
-import de.danoeh.antennapod.core.feed.FeedMedia;
 import de.danoeh.antennapod.core.feed.MediaType;
-import de.danoeh.antennapod.core.preferences.UserPreferences;
 import de.danoeh.antennapod.core.service.playback.PlaybackService;
-import de.danoeh.antennapod.core.service.playback.PlayerStatus;
-import de.danoeh.antennapod.core.storage.DBReader;
-import de.danoeh.antennapod.core.storage.DBWriter;
 import de.danoeh.antennapod.core.util.playback.ExternalMedia;
-import de.danoeh.antennapod.core.util.playback.Playable;
-import de.danoeh.antennapod.core.util.playback.PlaybackController;
-import de.danoeh.antennapod.fragment.AddFeedFragment;
-import de.danoeh.antennapod.fragment.ChaptersFragment;
-import de.danoeh.antennapod.fragment.CoverFragment;
-import de.danoeh.antennapod.fragment.DownloadsFragment;
-import de.danoeh.antennapod.fragment.EpisodesFragment;
-import de.danoeh.antennapod.fragment.ItemDescriptionFragment;
-import de.danoeh.antennapod.fragment.PlaybackHistoryFragment;
-import de.danoeh.antennapod.fragment.QueueFragment;
-import de.danoeh.antennapod.fragment.SubscriptionFragment;
-import de.danoeh.antennapod.menuhandler.NavDrawerActivity;
-import de.danoeh.antennapod.preferences.PreferenceController;
-import rx.Observable;
-import rx.Subscription;
-import rx.android.schedulers.AndroidSchedulers;
-import rx.schedulers.Schedulers;
 
 /**
  * Activity for playing audio files.
  */
-public class AudioplayerActivity extends MediaplayerActivity implements NavDrawerActivity {
-
-    private static final int POS_COVER = 0;
-    private static final int POS_DESCR = 1;
-    private static final int POS_CHAPTERS = 2;
-    private static final int NUM_CONTENT_FRAGMENTS = 3;
-
-    final String TAG = "AudioplayerActivity";
-    private static final String PREFS = "AudioPlayerActivityPreferences";
-    private static final String PREF_KEY_SELECTED_FRAGMENT_POSITION = "selectedFragmentPosition";
-
-    public static final String[] NAV_DRAWER_TAGS = {
-            QueueFragment.TAG,
-            EpisodesFragment.TAG,
-            SubscriptionFragment.TAG,
-            DownloadsFragment.TAG,
-            PlaybackHistoryFragment.TAG,
-            AddFeedFragment.TAG,
-            NavListAdapter.SUBSCRIPTION_LIST_TAG
-    };
-
-    private AtomicBoolean isSetup = new AtomicBoolean(false);
-
-    private DrawerLayout drawerLayout;
-    private NavListAdapter navAdapter;
-    private ListView navList;
-    private View navDrawer;
-    private ActionBarDrawerToggle drawerToggle;
-    private int mPosition = -1;
-
-    private Playable media;
-    private ViewPager pager;
-    private AudioplayerPagerAdapter pagerAdapter;
-
-    private Subscription subscription;
-
-    @Override
-    protected void onStop() {
-        super.onStop();
-        Log.d(TAG, "onStop()");
-        if(pagerAdapter != null) {
-            pagerAdapter.setController(null);
-        }
-        if(subscription != null) {
-            subscription.unsubscribe();
-        }
-        EventDistributor.getInstance().unregister(contentUpdate);
-        saveCurrentFragment();
-    }
-
-    @Override
-    public void onDestroy() {
-        Log.d(TAG, "onDestroy()");
-        super.onDestroy();
-        // don't risk creating memory leaks
-        drawerLayout = null;
-        navAdapter = null;
-        navList = null;
-        navDrawer = null;
-        drawerToggle = null;
-        pager = null;
-        pagerAdapter = null;
-    }
-
-    @Override
-    protected void chooseTheme() {
-        setTheme(UserPreferences.getNoTitleTheme());
-    }
-
-    private void saveCurrentFragment() {
-        if(pager == null) {
-            return;
-        }
-        Log.d(TAG, "Saving preferences");
-        SharedPreferences prefs = getSharedPreferences(PREFS, MODE_PRIVATE);
-        prefs.edit()
-                .putInt(PREF_KEY_SELECTED_FRAGMENT_POSITION, pager.getCurrentItem())
-                .commit();
-    }
-
-    @Override
-    public void onConfigurationChanged(Configuration newConfig) {
-        super.onConfigurationChanged(newConfig);
-        if(drawerToggle != null) {
-            drawerToggle.onConfigurationChanged(newConfig);
-        }
-    }
-
-    private void loadLastFragment() {
-        Log.d(TAG, "Restoring instance state");
-        SharedPreferences prefs = getSharedPreferences(PREFS, MODE_PRIVATE);
-        int lastPosition = prefs.getInt(PREF_KEY_SELECTED_FRAGMENT_POSITION, -1);
-        pager.setCurrentItem(lastPosition);
-    }
+public class AudioplayerActivity extends MediaplayerInfoActivity {
+    public static final String TAG = "AudioPlayerActivity";
 
     @Override
     protected void onResume() {
@@ -178,455 +31,5 @@ public class AudioplayerActivity extends MediaplayerActivity implements NavDrawe
                     true);
             startService(launchIntent);
         }
-        if(pagerAdapter != null && controller != null && controller.getMedia() != media) {
-            media = controller.getMedia();
-            pagerAdapter.onMediaChanged(media);
-            pagerAdapter.setController(controller);
-        }
-
-        EventDistributor.getInstance().register(contentUpdate);
-        loadData();
-    }
-
-    @Override
-    protected void onNewIntent(Intent intent) {
-        super.onNewIntent(intent);
-        setIntent(intent);
-    }
-
-    @Override
-    protected void onAwaitingVideoSurface() {
-        Log.d(TAG, "onAwaitingVideoSurface was called in audio player -> switching to video player");
-        startActivity(new Intent(this, VideoplayerActivity.class));
-    }
-
-    @Override
-    protected void postStatusMsg(int resId) {
-        if (resId == R.string.player_preparing_msg
-                || resId == R.string.player_seeking_msg
-                || resId == R.string.player_buffering_msg) {
-            // TODO Show progress bar here
-        }
-    }
-
-    @Override
-    protected void clearStatusMsg() {
-        // TODO Hide progress bar here
-    }
-
-
-    @Override
-    protected void setupGUI() {
-        if(isSetup.getAndSet(true)) {
-            return;
-        }
-        super.setupGUI();
-        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
-        setSupportActionBar(toolbar);
-        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
-        getSupportActionBar().setTitle("");
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-            findViewById(R.id.shadow).setVisibility(View.GONE);
-            AppBarLayout appBarLayout = (AppBarLayout) findViewById(R.id.appBar);
-            float px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 4, getResources().getDisplayMetrics());
-            appBarLayout.setElevation(px);
-        }
-        drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
-        navList = (ListView) findViewById(R.id.nav_list);
-        navDrawer = findViewById(R.id.nav_layout);
-
-        drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.string.drawer_open, R.string.drawer_close);
-        drawerToggle.setDrawerIndicatorEnabled(false);
-        drawerLayout.setDrawerListener(drawerToggle);
-
-        navAdapter = new NavListAdapter(itemAccess, this);
-        navList.setAdapter(navAdapter);
-        navList.setOnItemClickListener((parent, view, position, id) -> {
-            int viewType = parent.getAdapter().getItemViewType(position);
-            if (viewType != NavListAdapter.VIEW_TYPE_SECTION_DIVIDER) {
-                Intent intent = new Intent(AudioplayerActivity.this, MainActivity.class);
-                intent.putExtra(MainActivity.EXTRA_NAV_TYPE, viewType);
-                intent.putExtra(MainActivity.EXTRA_NAV_INDEX, position);
-                startActivity(intent);
-            }
-            drawerLayout.closeDrawer(navDrawer);
-        });
-        navList.setOnItemLongClickListener((parent, view, position, id) -> {
-            if (position < navAdapter.getTags().size()) {
-                showDrawerPreferencesDialog();
-                return true;
-            } else {
-                mPosition = position;
-                return false;
-            }
-        });
-        registerForContextMenu(navList);
-        drawerToggle.syncState();
-
-        findViewById(R.id.nav_settings).setOnClickListener(v -> {
-            drawerLayout.closeDrawer(navDrawer);
-            startActivity(new Intent(AudioplayerActivity.this, PreferenceController.getPreferenceActivity()));
-        });
-
-        pager = (ViewPager) findViewById(R.id.pager);
-        pagerAdapter = new AudioplayerPagerAdapter(getSupportFragmentManager(), media);
-        pagerAdapter.setController(controller);
-        pager.setAdapter(pagerAdapter);
-        CirclePageIndicator pageIndicator = (CirclePageIndicator) findViewById(R.id.page_indicator);
-        pageIndicator.setViewPager(pager);
-        loadLastFragment();
-        pager.onSaveInstanceState();
-    }
-
-    @Override
-    protected void onPositionObserverUpdate() {
-        super.onPositionObserverUpdate();
-        notifyMediaPositionChanged();
-    }
-
-    @Override
-    protected boolean loadMediaInfo() {
-        if (!super.loadMediaInfo()) {
-            return false;
-        }
-        if(controller.getMedia() != media) {
-            media = controller.getMedia();
-            pagerAdapter.onMediaChanged(media);
-        }
-        return true;
-    }
-
-    public void notifyMediaPositionChanged() {
-        if(pagerAdapter == null) {
-            return;
-        }
-        ChaptersFragment chaptersFragment = pagerAdapter.getChaptersFragment();
-        if(chaptersFragment != null) {
-            ChaptersListAdapter adapter = (ChaptersListAdapter) chaptersFragment.getListAdapter();
-            if (adapter != null) {
-                adapter.notifyDataSetChanged();
-            }
-        }
-    }
-
-    @Override
-    protected void onReloadNotification(int notificationCode) {
-        if (notificationCode == PlaybackService.EXTRA_CODE_VIDEO) {
-            Log.d(TAG, "ReloadNotification received, switching to Videoplayer now");
-            finish();
-            startActivity(new Intent(this, VideoplayerActivity.class));
-
-        }
-    }
-
-    @Override
-    protected void onBufferStart() {
-        postStatusMsg(R.string.player_buffering_msg);
-    }
-
-    @Override
-    protected void onBufferEnd() {
-        clearStatusMsg();
-    }
-
-    public PlaybackController getPlaybackController() {
-        return controller;
-    }
-
-    @Override
-    public boolean isDrawerOpen() {
-        return drawerLayout != null && navDrawer != null && drawerLayout.isDrawerOpen(navDrawer);
-    }
-
-    @Override
-    protected int getContentViewResourceId() {
-        return R.layout.audioplayer_activity;
-    }
-
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem item) {
-        return drawerToggle != null && drawerToggle.onOptionsItemSelected(item) || super.onOptionsItemSelected(item);
-    }
-
-    @Override
-    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
-        super.onCreateContextMenu(menu, v, menuInfo);
-        if(v.getId() != R.id.nav_list) {
-            return;
-        }
-        AdapterView.AdapterContextMenuInfo adapterInfo = (AdapterView.AdapterContextMenuInfo) menuInfo;
-        int position = adapterInfo.position;
-        if(position < navAdapter.getSubscriptionOffset()) {
-            return;
-        }
-        MenuInflater inflater = getMenuInflater();
-        inflater.inflate(R.menu.nav_feed_context, menu);
-        Feed feed = navDrawerData.feeds.get(position - navAdapter.getSubscriptionOffset());
-        menu.setHeaderTitle(feed.getTitle());
-        // episodes are not loaded, so we cannot check if the podcast has new or unplayed ones!
-    }
-
-    @Override
-    public boolean onContextItemSelected(MenuItem item) {
-        final int position = mPosition;
-        mPosition = -1; // reset
-        if(position < 0) {
-            return false;
-        }
-        Feed feed = navDrawerData.feeds.get(position - navAdapter.getSubscriptionOffset());
-        switch(item.getItemId()) {
-            case R.id.mark_all_seen_item:
-                DBWriter.markFeedSeen(feed.getId());
-                return true;
-            case R.id.mark_all_read_item:
-                DBWriter.markFeedRead(feed.getId());
-                return true;
-            case R.id.remove_item:
-                final FeedRemover remover = new FeedRemover(this, feed) {
-                    @Override
-                    protected void onPostExecute(Void result) {
-                        super.onPostExecute(result);
-                    }
-                };
-                ConfirmationDialog conDialog = new ConfirmationDialog(this,
-                        R.string.remove_feed_label,
-                        R.string.feed_delete_confirmation_msg) {
-                    @Override
-                    public void onConfirmButtonPressed(
-                            DialogInterface dialog) {
-                        dialog.dismiss();
-                        if (controller != null) {
-                            Playable playable = controller.getMedia();
-                            if (playable != null && playable instanceof FeedMedia) {
-                                FeedMedia media = (FeedMedia) playable;
-                                if (media.getItem().getFeed().getId() == feed.getId()) {
-                                    Log.d(TAG, "Currently playing episode is about to be deleted, skipping");
-                                    remover.skipOnCompletion = true;
-                                    if(controller.getStatus() == PlayerStatus.PLAYING) {
-                                        sendBroadcast(new Intent(
-                                                PlaybackService.ACTION_PAUSE_PLAY_CURRENT_EPISODE));
-                                    }
-                                }
-                            }
-                        }
-                        remover.executeAsync();
-                    }
-                };
-                conDialog.createNewDialog().show();
-                return true;
-            default:
-                return super.onContextItemSelected(item);
-        }
-    }
-
-    @Override
-    public void onBackPressed() {
-        if(isDrawerOpen()) {
-            drawerLayout.closeDrawer(navDrawer);
-        } else if (pager == null || pager.getCurrentItem() == 0) {
-            // If the user is currently looking at the first step, allow the system to handle the
-            // Back button. This calls finish() on this activity and pops the back stack.
-            super.onBackPressed();
-        } else {
-            // Otherwise, select the previous step.
-            pager.setCurrentItem(pager.getCurrentItem() - 1);
-        }
-    }
-
-    public void showDrawerPreferencesDialog() {
-        final List<String> hiddenDrawerItems = UserPreferences.getHiddenDrawerItems();
-        String[] navLabels = new String[NAV_DRAWER_TAGS.length];
-        final boolean[] checked = new boolean[NAV_DRAWER_TAGS.length];
-        for (int i = 0; i < NAV_DRAWER_TAGS.length; i++) {
-            String tag = NAV_DRAWER_TAGS[i];
-            navLabels[i] = navAdapter.getLabel(tag);
-            if (!hiddenDrawerItems.contains(tag)) {
-                checked[i] = true;
-            }
-        }
-
-        AlertDialog.Builder builder = new AlertDialog.Builder(this);
-        builder.setTitle(R.string.drawer_preferences);
-        builder.setMultiChoiceItems(navLabels, checked, (dialog, which, isChecked) -> {
-            if (isChecked) {
-                hiddenDrawerItems.remove(NAV_DRAWER_TAGS[which]);
-            } else {
-                hiddenDrawerItems.add(NAV_DRAWER_TAGS[which]);
-            }
-        });
-        builder.setPositiveButton(R.string.confirm_label, (dialog, which) -> {
-            UserPreferences.setHiddenDrawerItems(hiddenDrawerItems);
-        });
-        builder.setNegativeButton(R.string.cancel_label, null);
-        builder.create().show();
-    }
-
-    private DBReader.NavDrawerData navDrawerData;
-
-    private void loadData() {
-        subscription = Observable.fromCallable(DBReader::getNavDrawerData)
-                .subscribeOn(Schedulers.newThread())
-                .observeOn(AndroidSchedulers.mainThread())
-                .subscribe(result -> {
-                    navDrawerData = result;
-                    if (navAdapter != null) {
-                        navAdapter.notifyDataSetChanged();
-                    }
-                }, error -> {
-                    Log.e(TAG, Log.getStackTraceString(error));
-                });
-    }
-
-
-
-    private EventDistributor.EventListener contentUpdate = new EventDistributor.EventListener() {
-
-        @Override
-        public void update(EventDistributor eventDistributor, Integer arg) {
-            if ((EventDistributor.FEED_LIST_UPDATE & arg) != 0) {
-                Log.d(TAG, "Received contentUpdate Intent.");
-                loadData();
-            }
-        }
-    };
-
-    private final NavListAdapter.ItemAccess itemAccess = new NavListAdapter.ItemAccess() {
-        @Override
-        public int getCount() {
-            if (navDrawerData != null) {
-                return navDrawerData.feeds.size();
-            } else {
-                return 0;
-            }
-        }
-
-        @Override
-        public Feed getItem(int position) {
-            if (navDrawerData != null && 0 <= position && position < navDrawerData.feeds.size()) {
-                return navDrawerData.feeds.get(position);
-            } else {
-                return null;
-            }
-        }
-
-        @Override
-        public int getSelectedItemIndex() {
-            return -1;
-        }
-
-        @Override
-        public int getQueueSize() {
-            return (navDrawerData != null) ? navDrawerData.queueSize : 0;
-        }
-
-        @Override
-        public int getNumberOfNewItems() {
-            return (navDrawerData != null) ? navDrawerData.numNewItems : 0;
-        }
-
-        @Override
-        public int getNumberOfDownloadedItems() {
-            return (navDrawerData != null) ? navDrawerData.numDownloadedItems : 0;
-        }
-
-        @Override
-        public int getReclaimableItems() {
-            return (navDrawerData != null) ? navDrawerData.reclaimableSpace : 0;
-        }
-
-        @Override
-        public int getFeedCounter(long feedId) {
-            return navDrawerData != null ? navDrawerData.feedCounters.get(feedId) : 0;
-        }
-
-        @Override
-        public int getFeedCounterSum() {
-            if(navDrawerData == null) {
-                return 0;
-            }
-            int sum = 0;
-            for(int counter : navDrawerData.feedCounters.values()) {
-                sum += counter;
-            }
-            return sum;
-        }
-    };
-
-    public interface AudioplayerContentFragment {
-        void onMediaChanged(Playable media);
     }
-
-    private static class AudioplayerPagerAdapter extends FragmentStatePagerAdapter {
-
-        private static final String TAG = "AudioplayerPagerAdapter";
-        
-        private Playable media;
-        private PlaybackController controller;
-
-        public AudioplayerPagerAdapter(FragmentManager fm, Playable media) {
-            super(fm);
-            this.media = media;
-        }
-
-        private CoverFragment coverFragment;
-        private ItemDescriptionFragment itemDescriptionFragment;
-        private ChaptersFragment chaptersFragment;
-
-        public void onMediaChanged(Playable media) {
-            this.media = media;
-            if(coverFragment != null) {
-                coverFragment.onMediaChanged(media);
-            }
-            if(itemDescriptionFragment != null) {
-                itemDescriptionFragment.onMediaChanged(media);
-            }
-            if(chaptersFragment != null) {
-                chaptersFragment.onMediaChanged(media);
-            }
-        }
-
-        public void setController(PlaybackController controller) {
-            this.controller = controller;
-            if(chaptersFragment != null) {
-                chaptersFragment.setController(controller);
-            }
-        }
-
-        @Nullable
-        public ChaptersFragment getChaptersFragment() {
-            return chaptersFragment;
-        }
-
-        @Override
-        public Fragment getItem(int position) {
-            Log.d(TAG, "getItem(" + position + ")");
-            switch (position) {
-                case POS_COVER:
-                    if(coverFragment == null) {
-                        coverFragment = CoverFragment.newInstance(media);
-                    }
-                    return coverFragment;
-                case POS_DESCR:
-                    if(itemDescriptionFragment == null) {
-                        itemDescriptionFragment = ItemDescriptionFragment.newInstance(media, true, true);
-                    }
-                    return itemDescriptionFragment;
-                case POS_CHAPTERS:
-                    if(chaptersFragment == null) {
-                        chaptersFragment = ChaptersFragment.newInstance(media);
-                        chaptersFragment.setController(controller);
-                    }
-                    return chaptersFragment;
-                default:
-                    return null;
-            }
-        }
-
-        @Override
-        public int getCount() {
-            return NUM_CONTENT_FRAGMENTS;
-        }
-    }
-
 }
diff --git a/app/src/main/java/de/danoeh/antennapod/activity/CastplayerActivity.java b/app/src/main/java/de/danoeh/antennapod/activity/CastplayerActivity.java
new file mode 100644
index 000000000..f15c96467
--- /dev/null
+++ b/app/src/main/java/de/danoeh/antennapod/activity/CastplayerActivity.java
@@ -0,0 +1,10 @@
+package de.danoeh.antennapod.activity;
+
+/**
+ * Created by domingos on 4/16/16.
+ */
+public class CastplayerActivity extends MediaplayerInfoActivity {
+    public static final String TAG = "CastPlayerActivity";
+
+
+}
diff --git a/app/src/main/java/de/danoeh/antennapod/activity/MediaplayerInfoActivity.java b/app/src/main/java/de/danoeh/antennapod/activity/MediaplayerInfoActivity.java
new file mode 100644
index 000000000..8b1643143
--- /dev/null
+++ b/app/src/main/java/de/danoeh/antennapod/activity/MediaplayerInfoActivity.java
@@ -0,0 +1,614 @@
+package de.danoeh.antennapod.activity;
+
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.content.res.Configuration;
+import android.os.Build;
+import android.support.annotation.Nullable;
+import android.support.design.widget.AppBarLayout;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentManager;
+import android.support.v4.app.FragmentStatePagerAdapter;
+import android.support.v4.view.ViewPager;
+import android.support.v4.widget.DrawerLayout;
+import android.support.v7.app.ActionBarDrawerToggle;
+import android.support.v7.widget.Toolbar;
+import android.util.Log;
+import android.util.TypedValue;
+import android.view.ContextMenu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ListView;
+
+import com.viewpagerindicator.CirclePageIndicator;
+
+import java.util.List;
+import java.util.concurrent.atomic.AtomicBoolean;
+
+import de.danoeh.antennapod.R;
+import de.danoeh.antennapod.adapter.ChaptersListAdapter;
+import de.danoeh.antennapod.adapter.NavListAdapter;
+import de.danoeh.antennapod.core.asynctask.FeedRemover;
+import de.danoeh.antennapod.core.dialog.ConfirmationDialog;
+import de.danoeh.antennapod.core.feed.EventDistributor;
+import de.danoeh.antennapod.core.feed.Feed;
+import de.danoeh.antennapod.core.feed.FeedMedia;
+import de.danoeh.antennapod.core.preferences.UserPreferences;
+import de.danoeh.antennapod.core.service.playback.PlaybackService;
+import de.danoeh.antennapod.core.service.playback.PlayerStatus;
+import de.danoeh.antennapod.core.storage.DBReader;
+import de.danoeh.antennapod.core.storage.DBWriter;
+import de.danoeh.antennapod.core.util.playback.Playable;
+import de.danoeh.antennapod.core.util.playback.PlaybackController;
+import de.danoeh.antennapod.fragment.AddFeedFragment;
+import de.danoeh.antennapod.fragment.ChaptersFragment;
+import de.danoeh.antennapod.fragment.CoverFragment;
+import de.danoeh.antennapod.fragment.DownloadsFragment;
+import de.danoeh.antennapod.fragment.EpisodesFragment;
+import de.danoeh.antennapod.fragment.ItemDescriptionFragment;
+import de.danoeh.antennapod.fragment.PlaybackHistoryFragment;
+import de.danoeh.antennapod.fragment.QueueFragment;
+import de.danoeh.antennapod.fragment.SubscriptionFragment;
+import de.danoeh.antennapod.menuhandler.NavDrawerActivity;
+import de.danoeh.antennapod.preferences.PreferenceController;
+import rx.Observable;
+import rx.Subscription;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.schedulers.Schedulers;
+
+/**
+ * Activity for playing files that do not require a video surface.
+ */
+public abstract class MediaplayerInfoActivity extends MediaplayerActivity implements NavDrawerActivity {
+
+    private static final int POS_COVER = 0;
+    private static final int POS_DESCR = 1;
+    private static final int POS_CHAPTERS = 2;
+    private static final int NUM_CONTENT_FRAGMENTS = 3;
+
+    final String TAG = "MediaplayerInfoActivity";
+    private static final String PREFS = "AudioPlayerActivityPreferences";
+    private static final String PREF_KEY_SELECTED_FRAGMENT_POSITION = "selectedFragmentPosition";
+
+    public static final String[] NAV_DRAWER_TAGS = {
+            QueueFragment.TAG,
+            EpisodesFragment.TAG,
+            SubscriptionFragment.TAG,
+            DownloadsFragment.TAG,
+            PlaybackHistoryFragment.TAG,
+            AddFeedFragment.TAG,
+            NavListAdapter.SUBSCRIPTION_LIST_TAG
+    };
+
+    private AtomicBoolean isSetup = new AtomicBoolean(false);
+
+    private DrawerLayout drawerLayout;
+    private NavListAdapter navAdapter;
+    private ListView navList;
+    private View navDrawer;
+    private ActionBarDrawerToggle drawerToggle;
+    private int mPosition = -1;
+
+    private Playable media;
+    private ViewPager pager;
+    private MediaplayerInfoPagerAdapter pagerAdapter;
+
+    private Subscription subscription;
+
+    @Override
+    protected void onStop() {
+        super.onStop();
+        Log.d(TAG, "onStop()");
+        if(pagerAdapter != null) {
+            pagerAdapter.setController(null);
+        }
+        if(subscription != null) {
+            subscription.unsubscribe();
+        }
+        EventDistributor.getInstance().unregister(contentUpdate);
+        saveCurrentFragment();
+    }
+
+    @Override
+    public void onDestroy() {
+        Log.d(TAG, "onDestroy()");
+        super.onDestroy();
+        // don't risk creating memory leaks
+        drawerLayout = null;
+        navAdapter = null;
+        navList = null;
+        navDrawer = null;
+        drawerToggle = null;
+        pager = null;
+        pagerAdapter = null;
+    }
+
+    @Override
+    protected void chooseTheme() {
+        setTheme(UserPreferences.getNoTitleTheme());
+    }
+
+    private void saveCurrentFragment() {
+        if(pager == null) {
+            return;
+        }
+        Log.d(TAG, "Saving preferences");
+        SharedPreferences prefs = getSharedPreferences(PREFS, MODE_PRIVATE);
+        prefs.edit()
+                .putInt(PREF_KEY_SELECTED_FRAGMENT_POSITION, pager.getCurrentItem())
+                .commit();
+    }
+
+    @Override
+    public void onConfigurationChanged(Configuration newConfig) {
+        super.onConfigurationChanged(newConfig);
+        if(drawerToggle != null) {
+            drawerToggle.onConfigurationChanged(newConfig);
+        }
+    }
+
+    private void loadLastFragment() {
+        Log.d(TAG, "Restoring instance state");
+        SharedPreferences prefs = getSharedPreferences(PREFS, MODE_PRIVATE);
+        int lastPosition = prefs.getInt(PREF_KEY_SELECTED_FRAGMENT_POSITION, -1);
+        pager.setCurrentItem(lastPosition);
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        if(pagerAdapter != null && controller != null && controller.getMedia() != media) {
+            media = controller.getMedia();
+            pagerAdapter.onMediaChanged(media);
+            pagerAdapter.setController(controller);
+        }
+
+        EventDistributor.getInstance().register(contentUpdate);
+        loadData();
+    }
+
+    @Override
+    protected void onNewIntent(Intent intent) {
+        super.onNewIntent(intent);
+        setIntent(intent);
+    }
+
+    @Override
+    protected void onAwaitingVideoSurface() {
+        Log.d(TAG, "onAwaitingVideoSurface was called in audio player -> switching to video player");
+        startActivity(new Intent(this, VideoplayerActivity.class));
+    }
+
+    @Override
+    protected void postStatusMsg(int resId) {
+        if (resId == R.string.player_preparing_msg
+                || resId == R.string.player_seeking_msg
+                || resId == R.string.player_buffering_msg) {
+            // TODO Show progress bar here
+        }
+    }
+
+    @Override
+    protected void clearStatusMsg() {
+        // TODO Hide progress bar here
+    }
+
+
+    @Override
+    protected void setupGUI() {
+        if(isSetup.getAndSet(true)) {
+            return;
+        }
+        super.setupGUI();
+        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
+        getSupportActionBar().setTitle("");
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            findViewById(R.id.shadow).setVisibility(View.GONE);
+            AppBarLayout appBarLayout = (AppBarLayout) findViewById(R.id.appBar);
+            float px = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 4, getResources().getDisplayMetrics());
+            appBarLayout.setElevation(px);
+        }
+        drawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
+        navList = (ListView) findViewById(R.id.nav_list);
+        navDrawer = findViewById(R.id.nav_layout);
+
+        drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.string.drawer_open, R.string.drawer_close);
+        drawerToggle.setDrawerIndicatorEnabled(false);
+        drawerLayout.setDrawerListener(drawerToggle);
+
+        navAdapter = new NavListAdapter(itemAccess, this);
+        navList.setAdapter(navAdapter);
+        navList.setOnItemClickListener((parent, view, position, id) -> {
+            int viewType = parent.getAdapter().getItemViewType(position);
+            if (viewType != NavListAdapter.VIEW_TYPE_SECTION_DIVIDER) {
+                Intent intent = new Intent(MediaplayerInfoActivity.this, MainActivity.class);
+                intent.putExtra(MainActivity.EXTRA_NAV_TYPE, viewType);
+                intent.putExtra(MainActivity.EXTRA_NAV_INDEX, position);
+                startActivity(intent);
+            }
+            drawerLayout.closeDrawer(navDrawer);
+        });
+        navList.setOnItemLongClickListener((parent, view, position, id) -> {
+            if (position < navAdapter.getTags().size()) {
+                showDrawerPreferencesDialog();
+                return true;
+            } else {
+                mPosition = position;
+                return false;
+            }
+        });
+        registerForContextMenu(navList);
+        drawerToggle.syncState();
+
+        findViewById(R.id.nav_settings).setOnClickListener(v -> {
+            drawerLayout.closeDrawer(navDrawer);
+            startActivity(new Intent(MediaplayerInfoActivity.this, PreferenceController.getPreferenceActivity()));
+        });
+
+        pager = (ViewPager) findViewById(R.id.pager);
+        pagerAdapter = new MediaplayerInfoPagerAdapter(getSupportFragmentManager(), media);
+        pagerAdapter.setController(controller);
+        pager.setAdapter(pagerAdapter);
+        CirclePageIndicator pageIndicator = (CirclePageIndicator) findViewById(R.id.page_indicator);
+        pageIndicator.setViewPager(pager);
+        loadLastFragment();
+        pager.onSaveInstanceState();
+    }
+
+    @Override
+    protected void onPositionObserverUpdate() {
+        super.onPositionObserverUpdate();
+        notifyMediaPositionChanged();
+    }
+
+    @Override
+    protected boolean loadMediaInfo() {
+        if (!super.loadMediaInfo()) {
+            return false;
+        }
+        if(controller.getMedia() != media) {
+            media = controller.getMedia();
+            pagerAdapter.onMediaChanged(media);
+        }
+        return true;
+    }
+
+    public void notifyMediaPositionChanged() {
+        if(pagerAdapter == null) {
+            return;
+        }
+        ChaptersFragment chaptersFragment = pagerAdapter.getChaptersFragment();
+        if(chaptersFragment != null) {
+            ChaptersListAdapter adapter = (ChaptersListAdapter) chaptersFragment.getListAdapter();
+            if (adapter != null) {
+                adapter.notifyDataSetChanged();
+            }
+        }
+    }
+
+    @Override
+    protected void onReloadNotification(int notificationCode) {
+        if (notificationCode == PlaybackService.EXTRA_CODE_VIDEO) {
+            Log.d(TAG, "ReloadNotification received, switching to Videoplayer now");
+            finish();
+            startActivity(new Intent(this, VideoplayerActivity.class));
+
+        }
+    }
+
+    @Override
+    protected void onBufferStart() {
+        postStatusMsg(R.string.player_buffering_msg);
+    }
+
+    @Override
+    protected void onBufferEnd() {
+        clearStatusMsg();
+    }
+
+    public PlaybackController getPlaybackController() {
+        return controller;
+    }
+
+    @Override
+    public boolean isDrawerOpen() {
+        return drawerLayout != null && navDrawer != null && drawerLayout.isDrawerOpen(navDrawer);
+    }
+
+    @Override
+    protected int getContentViewResourceId() {
+        return R.layout.mediaplayerinfo_activity;
+    }
+
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        return drawerToggle != null && drawerToggle.onOptionsItemSelected(item) || super.onOptionsItemSelected(item);
+    }
+
+    @Override
+    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
+        super.onCreateContextMenu(menu, v, menuInfo);
+        if(v.getId() != R.id.nav_list) {
+            return;
+        }
+        AdapterView.AdapterContextMenuInfo adapterInfo = (AdapterView.AdapterContextMenuInfo) menuInfo;
+        int position = adapterInfo.position;
+        if(position < navAdapter.getSubscriptionOffset()) {
+            return;
+        }
+        MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.nav_feed_context, menu);
+        Feed feed = navDrawerData.feeds.get(position - navAdapter.getSubscriptionOffset());
+        menu.setHeaderTitle(feed.getTitle());
+        // episodes are not loaded, so we cannot check if the podcast has new or unplayed ones!
+    }
+
+    @Override
+    public boolean onContextItemSelected(MenuItem item) {
+        final int position = mPosition;
+        mPosition = -1; // reset
+        if(position < 0) {
+            return false;
+        }
+        Feed feed = navDrawerData.feeds.get(position - navAdapter.getSubscriptionOffset());
+        switch(item.getItemId()) {
+            case R.id.mark_all_seen_item:
+                DBWriter.markFeedSeen(feed.getId());
+                return true;
+            case R.id.mark_all_read_item:
+                DBWriter.markFeedRead(feed.getId());
+                return true;
+            case R.id.remove_item:
+                final FeedRemover remover = new FeedRemover(this, feed) {
+                    @Override
+                    protected void onPostExecute(Void result) {
+                        super.onPostExecute(result);
+                    }
+                };
+                ConfirmationDialog conDialog = new ConfirmationDialog(this,
+                        R.string.remove_feed_label,
+                        R.string.feed_delete_confirmation_msg) {
+                    @Override
+                    public void onConfirmButtonPressed(
+                            DialogInterface dialog) {
+                        dialog.dismiss();
+                        if (controller != null) {
+                            Playable playable = controller.getMedia();
+                            if (playable != null && playable instanceof FeedMedia) {
+                                FeedMedia media = (FeedMedia) playable;
+                                if (media.getItem().getFeed().getId() == feed.getId()) {
+                                    Log.d(TAG, "Currently playing episode is about to be deleted, skipping");
+                                    remover.skipOnCompletion = true;
+                                    if(controller.getStatus() == PlayerStatus.PLAYING) {
+                                        sendBroadcast(new Intent(
+                                                PlaybackService.ACTION_PAUSE_PLAY_CURRENT_EPISODE));
+                                    }
+                                }
+                            }
+                        }
+                        remover.executeAsync();
+                    }
+                };
+                conDialog.createNewDialog().show();
+                return true;
+            default:
+                return super.onContextItemSelected(item);
+        }
+    }
+
+    @Override
+    public void onBackPressed() {
+        if(isDrawerOpen()) {
+            drawerLayout.closeDrawer(navDrawer);
+        } else if (pager == null || pager.getCurrentItem() == 0) {
+            // If the user is currently looking at the first step, allow the system to handle the
+            // Back button. This calls finish() on this activity and pops the back stack.
+            super.onBackPressed();
+        } else {
+            // Otherwise, select the previous step.
+            pager.setCurrentItem(pager.getCurrentItem() - 1);
+        }
+    }
+
+    public void showDrawerPreferencesDialog() {
+        final List<String> hiddenDrawerItems = UserPreferences.getHiddenDrawerItems();
+        String[] navLabels = new String[NAV_DRAWER_TAGS.length];
+        final boolean[] checked = new boolean[NAV_DRAWER_TAGS.length];
+        for (int i = 0; i < NAV_DRAWER_TAGS.length; i++) {
+            String tag = NAV_DRAWER_TAGS[i];
+            navLabels[i] = navAdapter.getLabel(tag);
+            if (!hiddenDrawerItems.contains(tag)) {
+                checked[i] = true;
+            }
+        }
+
+        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setTitle(R.string.drawer_preferences);
+        builder.setMultiChoiceItems(navLabels, checked, (dialog, which, isChecked) -> {
+            if (isChecked) {
+                hiddenDrawerItems.remove(NAV_DRAWER_TAGS[which]);
+            } else {
+                hiddenDrawerItems.add(NAV_DRAWER_TAGS[which]);
+            }
+        });
+        builder.setPositiveButton(R.string.confirm_label, (dialog, which) -> {
+            UserPreferences.setHiddenDrawerItems(hiddenDrawerItems);
+        });
+        builder.setNegativeButton(R.string.cancel_label, null);
+        builder.create().show();
+    }
+
+    private DBReader.NavDrawerData navDrawerData;
+
+    private void loadData() {
+        subscription = Observable.fromCallable(DBReader::getNavDrawerData)
+                .subscribeOn(Schedulers.newThread())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(result -> {
+                    navDrawerData = result;
+                    if (navAdapter != null) {
+                        navAdapter.notifyDataSetChanged();
+                    }
+                }, error -> {
+                    Log.e(TAG, Log.getStackTraceString(error));
+                });
+    }
+
+
+
+    private EventDistributor.EventListener contentUpdate = new EventDistributor.EventListener() {
+
+        @Override
+        public void update(EventDistributor eventDistributor, Integer arg) {
+            if ((EventDistributor.FEED_LIST_UPDATE & arg) != 0) {
+                Log.d(TAG, "Received contentUpdate Intent.");
+                loadData();
+            }
+        }
+    };
+
+    private final NavListAdapter.ItemAccess itemAccess = new NavListAdapter.ItemAccess() {
+        @Override
+        public int getCount() {
+            if (navDrawerData != null) {
+                return navDrawerData.feeds.size();
+            } else {
+                return 0;
+            }
+        }
+
+        @Override
+        public Feed getItem(int position) {
+            if (navDrawerData != null && 0 <= position && position < navDrawerData.feeds.size()) {
+                return navDrawerData.feeds.get(position);
+            } else {
+                return null;
+            }
+        }
+
+        @Override
+        public int getSelectedItemIndex() {
+            return -1;
+        }
+
+        @Override
+        public int getQueueSize() {
+            return (navDrawerData != null) ? navDrawerData.queueSize : 0;
+        }
+
+        @Override
+        public int getNumberOfNewItems() {
+            return (navDrawerData != null) ? navDrawerData.numNewItems : 0;
+        }
+
+        @Override
+        public int getNumberOfDownloadedItems() {
+            return (navDrawerData != null) ? navDrawerData.numDownloadedItems : 0;
+        }
+
+        @Override
+        public int getReclaimableItems() {
+            return (navDrawerData != null) ? navDrawerData.reclaimableSpace : 0;
+        }
+
+        @Override
+        public int getFeedCounter(long feedId) {
+            return navDrawerData != null ? navDrawerData.feedCounters.get(feedId) : 0;
+        }
+
+        @Override
+        public int getFeedCounterSum() {
+            if(navDrawerData == null) {
+                return 0;
+            }
+            int sum = 0;
+            for(int counter : navDrawerData.feedCounters.values()) {
+                sum += counter;
+            }
+            return sum;
+        }
+    };
+
+    public interface MediaplayerInfoContentFragment {
+        void onMediaChanged(Playable media);
+    }
+
+    private static class MediaplayerInfoPagerAdapter extends FragmentStatePagerAdapter {
+
+        private static final String TAG = "MPInfoPagerAdapter";
+
+        private Playable media;
+        private PlaybackController controller;
+
+        public MediaplayerInfoPagerAdapter(FragmentManager fm, Playable media) {
+            super(fm);
+            this.media = media;
+        }
+
+        private CoverFragment coverFragment;
+        private ItemDescriptionFragment itemDescriptionFragment;
+        private ChaptersFragment chaptersFragment;
+
+        public void onMediaChanged(Playable media) {
+            this.media = media;
+            if(coverFragment != null) {
+                coverFragment.onMediaChanged(media);
+            }
+            if(itemDescriptionFragment != null) {
+                itemDescriptionFragment.onMediaChanged(media);
+            }
+            if(chaptersFragment != null) {
+                chaptersFragment.onMediaChanged(media);
+            }
+        }
+
+        public void setController(PlaybackController controller) {
+            this.controller = controller;
+            if(chaptersFragment != null) {
+                chaptersFragment.setController(controller);
+            }
+        }
+
+        @Nullable
+        public ChaptersFragment getChaptersFragment() {
+            return chaptersFragment;
+        }
+
+        @Override
+        public Fragment getItem(int position) {
+            Log.d(TAG, "getItem(" + position + ")");
+            switch (position) {
+                case POS_COVER:
+                    if(coverFragment == null) {
+                        coverFragment = CoverFragment.newInstance(media);
+                    }
+                    return coverFragment;
+                case POS_DESCR:
+                    if(itemDescriptionFragment == null) {
+                        itemDescriptionFragment = ItemDescriptionFragment.newInstance(media, true, true);
+                    }
+                    return itemDescriptionFragment;
+                case POS_CHAPTERS:
+                    if(chaptersFragment == null) {
+                        chaptersFragment = ChaptersFragment.newInstance(media);
+                        chaptersFragment.setController(controller);
+                    }
+                    return chaptersFragment;
+                default:
+                    return null;
+            }
+        }
+
+        @Override
+        public int getCount() {
+            return NUM_CONTENT_FRAGMENTS;
+        }
+    }
+}