Almost showing a chapter reader

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

@@ -0,0 +1,7 @@
+package eu.kanade.mangafeed.presenter;
+
+import eu.kanade.mangafeed.ui.activity.MainActivity;
+
+public class MainPresenter extends BasePresenter<MainActivity> {
+
+}

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

@@ -13,13 +13,14 @@ 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.sources.Source;
 import eu.kanade.mangafeed.ui.fragment.MangaChaptersFragment;
 import eu.kanade.mangafeed.util.EventBusHook;
 import eu.kanade.mangafeed.util.events.ChapterCountEvent;
+import eu.kanade.mangafeed.util.events.SourceChapterEvent;
 import rx.Observable;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
-import timber.log.Timber;
 
 public class MangaChaptersPresenter extends BasePresenter<MangaChaptersFragment> {
 
@@ -27,6 +28,7 @@ public class MangaChaptersPresenter extends BasePresenter<MangaChaptersFragment>
     @Inject SourceManager sourceManager;
 
     private Manga manga;
+    private Source source;
 
     private static final int DB_CHAPTERS = 1;
     private static final int ONLINE_CHAPTERS = 2;
@@ -71,6 +73,7 @@ public class MangaChaptersPresenter extends BasePresenter<MangaChaptersFragment>
     public void onEventMainThread(Manga manga) {
         if (this.manga == null) {
             this.manga = manga;
+            source = sourceManager.get(manga.source);
             start(DB_CHAPTERS);
 
             // Get chapters if it's an online source
@@ -94,11 +97,14 @@ public class MangaChaptersPresenter extends BasePresenter<MangaChaptersFragment>
     }
 
     private Observable<PostResult> getOnlineChaptersObs() {
-        return sourceManager.get(manga.source)
+        return source
                 .pullChaptersFromNetwork(manga.url)
                 .subscribeOn(Schedulers.io())
                 .flatMap(chapters -> db.insertOrRemoveChapters(manga, chapters))
                 .observeOn(AndroidSchedulers.mainThread());
     }
 
+    public void onChapterClicked(Chapter chapter) {
+        EventBus.getDefault().postSticky(new SourceChapterEvent(source, chapter));
+    }
 }

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

@@ -10,7 +10,6 @@ import eu.kanade.mangafeed.ui.fragment.MangaInfoFragment;
 import eu.kanade.mangafeed.util.EventBusHook;
 import eu.kanade.mangafeed.util.events.ChapterCountEvent;
 import rx.Observable;
-import timber.log.Timber;
 
 public class MangaInfoPresenter extends BasePresenter<MangaInfoFragment> {
 

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

@@ -3,7 +3,6 @@ package eu.kanade.mangafeed.presenter;
 import javax.inject.Inject;
 
 import eu.kanade.mangafeed.data.helpers.SourceManager;
-import eu.kanade.mangafeed.sources.Source;
 import eu.kanade.mangafeed.ui.fragment.SourceFragment;
 
 

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

@@ -0,0 +1,93 @@
+package eu.kanade.mangafeed.presenter;
+
+import android.os.Bundle;
+
+import java.util.List;
+
+import javax.inject.Inject;
+
+import de.greenrobot.event.EventBus;
+import eu.kanade.mangafeed.data.caches.CacheManager;
+import eu.kanade.mangafeed.data.models.Chapter;
+import eu.kanade.mangafeed.data.models.Page;
+import eu.kanade.mangafeed.sources.Source;
+import eu.kanade.mangafeed.ui.activity.ViewerActivity;
+import eu.kanade.mangafeed.util.EventBusHook;
+import eu.kanade.mangafeed.util.events.SourceChapterEvent;
+import rx.Observable;
+import rx.android.schedulers.AndroidSchedulers;
+import rx.schedulers.Schedulers;
+
+public class ViewerPresenter extends BasePresenter<ViewerActivity> {
+
+    private static final int GET_PAGE_LIST = 1;
+    private Source source;
+    private Chapter chapter;
+    private List<Page> pageList;
+
+    @Inject CacheManager cacheManager;
+
+    @Override
+    protected void onCreate(Bundle savedState) {
+        super.onCreate(savedState);
+
+        restartableReplay(GET_PAGE_LIST,
+                this::getPageListObservable,
+                (view, page) -> {
+                });
+    }
+
+    @Override
+    protected void onTakeView(ViewerActivity view) {
+        super.onTakeView(view);
+        registerForStickyEvents();
+    }
+
+    @Override
+    protected void onDropView() {
+        unregisterForEvents();
+        super.onDropView();
+    }
+
+    @Override
+    protected void onDestroy() {
+        super.onDestroy();
+        EventBus.getDefault().removeStickyEvent(SourceChapterEvent.class);
+        source.savePageList(chapter.url, pageList);
+    }
+
+    @EventBusHook
+    public void onEventMainThread(SourceChapterEvent event) {
+        if (source == null || chapter == null) {
+            source = event.getSource();
+            chapter = event.getChapter();
+
+            start(1);
+        }
+    }
+
+    private Observable<Page> getPageListObservable() {
+        return source.pullPageListFromNetwork(chapter.url)
+                .subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .flatMap(pageList -> {
+                    this.pageList = pageList;
+
+                    return Observable.merge(
+                        Observable.from(pageList)
+                                .filter(page -> page.getImageUrl() != null),
+
+                        source.getRemainingImageUrlsFromPageList(pageList)
+                                .doOnNext(this::replacePageUrl));
+                });
+    }
+
+    private void replacePageUrl(Page page) {
+        for (int i = 0; i < pageList.size(); i++) {
+            if (pageList.get(i).getPageNumber() == page.getPageNumber()) {
+                pageList.set(i, page);
+                return;
+            }
+        }
+    }
+}