Add multiple chapters selection and allow to mark them as read/unread

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

@@ -18,6 +18,7 @@ import eu.kanade.mangafeed.ui.fragment.MangaChaptersFragment;
 import eu.kanade.mangafeed.util.EventBusHook;
 import eu.kanade.mangafeed.util.PostResult;
 import rx.Observable;
+import rx.Subscription;
 import rx.android.schedulers.AndroidSchedulers;
 import rx.schedulers.Schedulers;
 
@@ -32,6 +33,8 @@ public class MangaChaptersPresenter extends BasePresenter<MangaChaptersFragment>
     private static final int DB_CHAPTERS = 1;
     private static final int ONLINE_CHAPTERS = 2;
 
+    private Subscription menuOperationSubscription;
+
     @Override
     protected void onCreate(Bundle savedState) {
         super.onCreate(savedState);
@@ -106,4 +109,22 @@ public class MangaChaptersPresenter extends BasePresenter<MangaChaptersFragment>
     public void onChapterClicked(Chapter chapter) {
         EventBus.getDefault().postSticky(new SourceChapterEvent(source, chapter));
     }
+
+    public void markChaptersRead(Observable<Chapter> selectedChapters, boolean read) {
+        if (menuOperationSubscription != null)
+            remove(menuOperationSubscription);
+
+        add(menuOperationSubscription = selectedChapters
+                .subscribeOn(Schedulers.io())
+                .map(chapter -> {
+                    chapter.read = read;
+                    return chapter;
+                })
+                .toList()
+                .flatMap(db::insertChapters)
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(result -> {
+
+                }));
+    }
 }

app/src/main/java/eu/kanade/mangafeed/ui/adapter/ChaptersAdapter.java

@@ -0,0 +1,52 @@
+package eu.kanade.mangafeed.ui.adapter;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import eu.davidea.flexibleadapter.FlexibleAdapter;
+import eu.kanade.mangafeed.R;
+import eu.kanade.mangafeed.data.models.Chapter;
+import eu.kanade.mangafeed.ui.fragment.base.BaseFragment;
+import eu.kanade.mangafeed.ui.holder.ChaptersHolder;
+
+public class ChaptersAdapter extends FlexibleAdapter<ChaptersHolder, Chapter> {
+
+    private Context context;
+    public OnItemClickListener clickListener;
+
+    public ChaptersAdapter(BaseFragment fragment) {
+        this.context = fragment.getActivity();
+        mItems = new ArrayList<>();
+        clickListener = (OnItemClickListener) fragment;
+    }
+
+    @Override
+    public void updateDataSet(String param) {}
+
+    @Override
+    public ChaptersHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        View v = LayoutInflater.from(context).inflate(R.layout.item_chapter, parent, false);
+        return new ChaptersHolder(v, this);
+    }
+
+    @Override
+    public void onBindViewHolder(ChaptersHolder holder, int position) {
+        final Chapter chapter = getItem(position);
+        holder.onSetValues(context, chapter);
+    }
+
+    public void setItems(List<Chapter> chapters) {
+        mItems = chapters;
+        notifyDataSetChanged();
+    }
+
+    public interface OnItemClickListener {
+        boolean onListItemClick(int position);
+        void onListItemLongClick(int position);
+    }
+}

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

@@ -4,6 +4,7 @@ import android.content.Intent;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v4.widget.SwipeRefreshLayout;
+import android.support.v7.view.ActionMode;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
@@ -22,18 +23,22 @@ import eu.kanade.mangafeed.data.models.Chapter;
 import eu.kanade.mangafeed.presenter.MangaChaptersPresenter;
 import eu.kanade.mangafeed.ui.activity.MangaDetailActivity;
 import eu.kanade.mangafeed.ui.activity.ReaderActivity;
-import eu.kanade.mangafeed.ui.holder.ChapterListHolder;
+import eu.kanade.mangafeed.ui.activity.base.BaseActivity;
+import eu.kanade.mangafeed.ui.adapter.ChaptersAdapter;
 import eu.kanade.mangafeed.ui.fragment.base.BaseRxFragment;
 import nucleus.factory.RequiresPresenter;
-import uk.co.ribot.easyadapter.EasyRecyclerAdapter;
+import rx.Observable;
 
 @RequiresPresenter(MangaChaptersPresenter.class)
-public class MangaChaptersFragment extends BaseRxFragment<MangaChaptersPresenter> {
+public class MangaChaptersFragment extends BaseRxFragment<MangaChaptersPresenter> implements
+        ActionMode.Callback, ChaptersAdapter.OnItemClickListener {
 
     @Bind(R.id.chapter_list) RecyclerView chapters;
     @Bind(R.id.swipe_refresh) SwipeRefreshLayout swipeRefresh;
 
-    private EasyRecyclerAdapter<Chapter> adapter;
+    private ChaptersAdapter adapter;
+
+    private ActionMode actionMode;
 
     public static Fragment newInstance() {
         return new MangaChaptersFragment();
@@ -76,13 +81,7 @@ public class MangaChaptersFragment extends BaseRxFragment<MangaChaptersPresenter
     }
 
     private void createAdapter() {
-        ChapterListHolder.ChapterListener listener = chapter -> {
-            getPresenter().onChapterClicked(chapter);
-            Intent intent = ReaderActivity.newInstance(getActivity());
-            startActivity(intent);
-        };
-
-        adapter = new EasyRecyclerAdapter<>(getActivity(), ChapterListHolder.class, listener);
+        adapter = new ChaptersAdapter(this);
         chapters.setAdapter(adapter);
     }
 
@@ -92,6 +91,7 @@ public class MangaChaptersFragment extends BaseRxFragment<MangaChaptersPresenter
 
     public void onNextChapters(List<Chapter> chapters) {
         adapter.setItems(chapters);
+        closeActionMode();
     }
 
     public void onNextOnlineChapters() {
@@ -105,4 +105,87 @@ public class MangaChaptersFragment extends BaseRxFragment<MangaChaptersPresenter
     public boolean isOnlineManga() {
         return ((MangaDetailActivity)getActivity()).isOnlineManga();
     }
+
+    @Override
+    public boolean onCreateActionMode(ActionMode mode, Menu menu) {
+        mode.getMenuInflater().inflate(R.menu.chapter_selection, menu);
+        adapter.setMode(ChaptersAdapter.MODE_MULTI);
+        return true;
+    }
+
+    @Override
+    public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
+        return false;
+    }
+
+    @Override
+    public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.action_select_all:
+                adapter.selectAll();
+                return true;
+            case R.id.action_mark_as_read:
+                getPresenter().markChaptersRead(getSelectedChapters(), true);
+                return true;
+            case R.id.action_mark_as_unread:
+                getPresenter().markChaptersRead(getSelectedChapters(), false);
+                return true;
+        }
+        return false;
+    }
+
+    @Override
+    public void onDestroyActionMode(ActionMode mode) {
+        adapter.setMode(ChaptersAdapter.MODE_SINGLE);
+        adapter.clearSelection();
+        actionMode = null;
+    }
+
+    private Observable<Chapter> getSelectedChapters() {
+        return Observable.from(adapter.getSelectedItems())
+                .map(adapter::getItem);
+    }
+
+    public void closeActionMode() {
+        if (actionMode != null)
+            actionMode.finish();
+    }
+
+    @Override
+    public boolean onListItemClick(int position) {
+        if (actionMode != null && adapter.getMode() == ChaptersAdapter.MODE_MULTI) {
+            toggleSelection(position);
+            return true;
+        } else {
+            getPresenter().onChapterClicked(adapter.getItem(position));
+            Intent intent = ReaderActivity.newInstance(getActivity());
+            startActivity(intent);
+            return false;
+        }
+    }
+
+    @Override
+    public void onListItemLongClick(int position) {
+        if (actionMode == null)
+            actionMode = ((BaseActivity)getActivity()).startSupportActionMode(this);
+
+        toggleSelection(position);
+    }
+
+    private void toggleSelection(int position) {
+        adapter.toggleSelection(position, false);
+
+        int count = adapter.getSelectedItemCount();
+
+        if (count == 0) {
+            actionMode.finish();
+        } else {
+            setContextTitle(count);
+            actionMode.invalidate();
+        }
+    }
+
+    private void setContextTitle(int count) {
+        actionMode.setTitle(getString(R.string.selected_chapters_title, count));
+    }
 }

app/src/main/java/eu/kanade/mangafeed/ui/holder/ChapterListHolder.java

@@ -1,60 +0,0 @@
-package eu.kanade.mangafeed.ui.holder;
-
-import android.graphics.Color;
-import android.support.v4.content.ContextCompat;
-import android.view.View;
-import android.widget.ImageView;
-import android.widget.TextView;
-
-import eu.kanade.mangafeed.R;
-import eu.kanade.mangafeed.data.models.Chapter;
-import uk.co.ribot.easyadapter.ItemViewHolder;
-import uk.co.ribot.easyadapter.PositionInfo;
-import uk.co.ribot.easyadapter.annotations.LayoutId;
-import uk.co.ribot.easyadapter.annotations.ViewId;
-
-@LayoutId(R.layout.item_chapter)
-public class ChapterListHolder extends ItemViewHolder<Chapter> {
-
-    @ViewId(R.id.chapter_title) TextView title;
-    @ViewId(R.id.chapter_download_image) ImageView download_icon;
-    @ViewId(R.id.chapter_pages) TextView pages;
-
-    View view;
-
-    public ChapterListHolder(View view) {
-        super(view);
-        this.view = view;
-    }
-
-    public void onSetValues(Chapter chapter, PositionInfo positionInfo) {
-        title.setText(chapter.name);
-        download_icon.setImageResource(R.drawable.ic_file_download_black_48dp);
-
-        if (chapter.read) {
-            title.setTextColor(ContextCompat.getColor(getContext(), R.color.chapter_read_text));
-        } else {
-            title.setTextColor(Color.BLACK);
-        }
-
-        if (chapter.last_page_read > 0 && !chapter.read) {
-            pages.setText(getContext().getString(R.string.chapter_progress, chapter.last_page_read+1));
-        } else {
-            pages.setText("");
-        }
-    }
-
-    @Override
-    public void onSetListeners() {
-        view.setOnClickListener(view -> {
-            ChapterListener listener = getListener(ChapterListener.class);
-            if (listener != null) {
-                listener.onRowClicked(getItem());
-            }
-        });
-    }
-
-    public interface ChapterListener {
-        void onRowClicked(Chapter chapter);
-    }
-}

app/src/main/java/eu/kanade/mangafeed/ui/holder/ChaptersHolder.java

@@ -0,0 +1,74 @@
+package eu.kanade.mangafeed.ui.holder;
+
+import android.content.Context;
+import android.graphics.Color;
+import android.support.v4.content.ContextCompat;
+import android.support.v7.widget.RecyclerView;
+import android.view.View;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import butterknife.Bind;
+import butterknife.ButterKnife;
+import eu.kanade.mangafeed.R;
+import eu.kanade.mangafeed.data.models.Chapter;
+import eu.kanade.mangafeed.ui.adapter.ChaptersAdapter;
+
+public class ChaptersHolder extends RecyclerView.ViewHolder implements
+        View.OnClickListener, View.OnLongClickListener {
+
+    private ChaptersAdapter adapter;
+
+    @Bind(R.id.chapter_title) TextView title;
+    @Bind(R.id.chapter_download_image) ImageView download_icon;
+    @Bind(R.id.chapter_pages) TextView pages;
+
+    public ChaptersHolder(View view) {
+        super(view);
+        ButterKnife.bind(this, view);
+    }
+
+    public ChaptersHolder(View view, final ChaptersAdapter adapter) {
+        this(view);
+
+        this.adapter = adapter;
+        itemView.setOnClickListener(this);
+        itemView.setOnLongClickListener(this);
+    }
+
+    public void onSetValues(Context context, Chapter chapter) {
+        title.setText(chapter.name);
+        download_icon.setImageResource(R.drawable.ic_file_download_black_48dp);
+
+        if (chapter.read) {
+            title.setTextColor(ContextCompat.getColor(context, R.color.chapter_read_text));
+        } else {
+            title.setTextColor(Color.BLACK);
+        }
+
+        if (chapter.last_page_read > 0 && !chapter.read) {
+            pages.setText(context.getString(R.string.chapter_progress, chapter.last_page_read + 1));
+        } else {
+            pages.setText("");
+        }
+
+        toggleActivation();
+    }
+
+    private void toggleActivation() {
+        itemView.setActivated(adapter.isSelected(getAdapterPosition()));
+    }
+
+    @Override
+    public void onClick(View v) {
+        if (adapter.clickListener.onListItemClick(getAdapterPosition()))
+            toggleActivation();
+    }
+
+    @Override
+    public boolean onLongClick(View v) {
+        adapter.clickListener.onListItemLongClick(getAdapterPosition());
+        toggleActivation();
+        return true;
+    }
+}