Show chapter count

app/src/main/java/eu/kanade/mangafeed/presenter/MangaChaptersPresenter.java

@@ -8,11 +8,14 @@ import java.util.List;
 
 import javax.inject.Inject;
 
+import de.greenrobot.event.EventBus;
 import eu.kanade.mangafeed.data.helpers.DatabaseHelper;
 import eu.kanade.mangafeed.data.helpers.SourceManager;
 import eu.kanade.mangafeed.data.models.Chapter;
 import eu.kanade.mangafeed.data.models.Manga;
 import eu.kanade.mangafeed.ui.fragment.MangaChaptersFragment;
+import eu.kanade.mangafeed.util.EventBusHook;
+import eu.kanade.mangafeed.util.events.ChapterCountEvent;
 import rx.Observable;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
@@ -34,7 +37,10 @@ public class MangaChaptersPresenter extends BasePresenter<MangaChaptersFragment>
 
         restartableLatestCache(DB_CHAPTERS,
                 this::getDbChaptersObs,
-                MangaChaptersFragment::onNextChapters
+                (view, chapters) -> {
+                    view.onNextChapters(chapters);
+                    EventBus.getDefault().postSticky(new ChapterCountEvent(chapters.size()));
+                }
         );
 
         restartableLatestCache(ONLINE_CHAPTERS,
@@ -55,6 +61,7 @@ public class MangaChaptersPresenter extends BasePresenter<MangaChaptersFragment>
         super.onDropView();
     }
 
+    @EventBusHook
     public void onEventMainThread(Manga manga) {
         if (this.manga == null) {
             this.manga = manga;

app/src/main/java/eu/kanade/mangafeed/presenter/MangaInfoPresenter.java

@@ -1,20 +1,42 @@
 package eu.kanade.mangafeed.presenter;
 
+import android.os.Bundle;
+
 import javax.inject.Inject;
 
 import eu.kanade.mangafeed.data.helpers.DatabaseHelper;
 import eu.kanade.mangafeed.data.models.Manga;
 import eu.kanade.mangafeed.ui.fragment.MangaInfoFragment;
+import eu.kanade.mangafeed.util.EventBusHook;
+import eu.kanade.mangafeed.util.events.ChapterCountEvent;
 import rx.Observable;
 import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
+import rx.schedulers.Schedulers;
+import timber.log.Timber;
 
 public class MangaInfoPresenter extends BasePresenter<MangaInfoFragment> {
 
     @Inject DatabaseHelper db;
 
     private Manga manga;
-    private Subscription mangaInfoSubscription;
+    private int count = -1;
+
+    private static final int GET_MANGA = 1;
+    private static final int GET_CHAPTER_COUNT = 2;
+
+    @Override
+    protected void onCreate(Bundle savedState) {
+        super.onCreate(savedState);
+
+        restartableLatestCache(GET_MANGA,
+                () -> Observable.just(manga),
+                MangaInfoFragment::setMangaInfo);
+
+        restartableLatestCache(GET_CHAPTER_COUNT,
+                () -> Observable.just(count),
+                MangaInfoFragment::setChapterCount);
+    }
 
     @Override
     protected void onTakeView(MangaInfoFragment view) {
@@ -28,18 +50,20 @@ public class MangaInfoPresenter extends BasePresenter<MangaInfoFragment> {
         super.onDropView();
     }
 
+    @EventBusHook
     public void onEventMainThread(Manga manga) {
+        if (!manga.equals(this.manga)) {
             this.manga = manga;
-        getMangaInfo();
+            start(GET_MANGA);
+        }
     }
 
-    private void getMangaInfo() {
+    @EventBusHook
-        if (mangaInfoSubscription != null)
+    public void onEventMainThread(ChapterCountEvent event) {
-            remove(mangaInfoSubscription);
+        if (count != event.getCount()) {
+            count = event.getCount();
+            start(GET_CHAPTER_COUNT);
+        }
+    }
 
-        add(mangaInfoSubscription = Observable.just(manga)
-                .observeOn(AndroidSchedulers.mainThread())
-                .compose(deliverLatestCache())
-                .subscribe(split(MangaInfoFragment::setMangaInfo)));
-    }
 }

app/src/main/java/eu/kanade/mangafeed/ui/fragment/MangaChaptersFragment.java

@@ -27,7 +27,7 @@ import uk.co.ribot.easyadapter.EasyRecyclerAdapter;
 public class MangaChaptersFragment extends BaseFragment<MangaChaptersPresenter> {
 
     @Bind(R.id.chapter_list) RecyclerView chapters;
-    @Bind(R.id.swipe_refresh) SwipeRefreshLayout swipe_refresh;
+    @Bind(R.id.swipe_refresh) SwipeRefreshLayout swipeRefresh;
 
     private EasyRecyclerAdapter<Chapter> adapter;
 
@@ -77,7 +77,7 @@ public class MangaChaptersFragment extends BaseFragment<MangaChaptersPresenter>
     }
 
     private void setSwipeRefreshListener() {
-        swipe_refresh.setOnRefreshListener(() -> getPresenter().refreshChapters(this));
+        swipeRefresh.setOnRefreshListener(() -> getPresenter().refreshChapters(this));
     }
 
     public void onNextChapters(List<Chapter> chapters) {
@@ -85,10 +85,10 @@ public class MangaChaptersFragment extends BaseFragment<MangaChaptersPresenter>
     }
 
     public void onNextOnlineChapters() {
-        swipe_refresh.setRefreshing(false);
+        swipeRefresh.setRefreshing(false);
     }
 
     public void setSwipeRefreshing() {
-        swipe_refresh.setRefreshing(true);
+        swipeRefresh.setRefreshing(true);
     }
 }

app/src/main/java/eu/kanade/mangafeed/ui/fragment/MangaInfoFragment.java

@@ -50,7 +50,6 @@ public class MangaInfoFragment extends BaseFragment<MangaInfoPresenter> {
     public void setMangaInfo(Manga manga) {
         mArtist.setText(manga.artist);
         mAuthor.setText(manga.author);
-        mChapters.setText("0"); // TODO
         mGenres.setText(manga.genre);
         mStatus.setText("Ongoing"); //TODO
         mDescription.setText(manga.description);
@@ -61,4 +60,8 @@ public class MangaInfoFragment extends BaseFragment<MangaInfoPresenter> {
                 .centerCrop()
                 .into(mCover);
     }
+
+    public void setChapterCount(int count) {
+        mChapters.setText(String.valueOf(count));
+    }
 }

app/src/main/java/eu/kanade/mangafeed/util/EventBusHook.java

@@ -0,0 +1,7 @@
+package eu.kanade.mangafeed.util;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Target;
+
+@Target({ElementType.METHOD})
+public @interface EventBusHook {}

app/src/main/java/eu/kanade/mangafeed/util/events/ChapterCountEvent.java

@@ -0,0 +1,13 @@
+package eu.kanade.mangafeed.util.events;
+
+public class ChapterCountEvent {
+    private int count;
+
+    public ChapterCountEvent(int count) {
+        this.count = count;
+    }
+
+    public int getCount() {
+        return count;
+    }
+}