Add library search. Closes #64

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryCategoryAdapter.java

@@ -3,8 +3,6 @@ package eu.kanade.tachiyomi.ui.library;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.Filter;
-import android.widget.Filterable;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -12,28 +10,24 @@ import java.util.List;
 import eu.davidea.flexibleadapter.FlexibleAdapter;
 import eu.kanade.tachiyomi.R;
 import eu.kanade.tachiyomi.data.database.models.Manga;
-import rx.Observable;
 
-public class LibraryCategoryAdapter extends FlexibleAdapter<LibraryHolder, Manga>
-        implements Filterable {
+public class LibraryCategoryAdapter extends FlexibleAdapter<LibraryHolder, Manga> {
 
-    List<Manga> mangas;
-    Filter filter;
+    private List<Manga> mangas;
     private LibraryCategoryFragment fragment;
 
     public LibraryCategoryAdapter(LibraryCategoryFragment fragment) {
         this.fragment = fragment;
         mItems = new ArrayList<>();
-        filter = new LibraryFilter();
         setHasStableIds(true);
     }
 
     public void setItems(List<Manga> list) {
         mItems = list;
-        notifyDataSetChanged();
 
-        // TODO needed for filtering?
-        mangas = list;
+        // A copy of manga that it's always unfiltered
+        mangas = new ArrayList<>(list);
+        updateDataSet(null);
     }
 
     public void clear() {
@@ -47,7 +41,16 @@ public class LibraryCategoryAdapter extends FlexibleAdapter<LibraryHolder, Manga
 
     @Override
     public void updateDataSet(String param) {
+        if (mangas != null) {
+            filterItems(mangas);
+            notifyDataSetChanged();
+        }
+    }
 
+    @Override
+    protected boolean filterObject(Manga manga, String query) {
+        return (manga.title != null && manga.title.toLowerCase().contains(query)) ||
+                (manga.author != null && manga.author.toLowerCase().contains(query));
     }
 
     @Override
@@ -70,40 +73,4 @@ public class LibraryCategoryAdapter extends FlexibleAdapter<LibraryHolder, Manga
         return fragment.recycler.getItemWidth() / 3 * 4;
     }
 
-    @Override
-    public Filter getFilter() {
-        return filter;
-    }
-
-    private class LibraryFilter extends Filter {
-        @Override
-        protected FilterResults performFiltering(CharSequence charSequence) {
-            FilterResults results = new FilterResults();
-            String query = charSequence.toString().toLowerCase();
-
-            if (query.length() == 0) {
-                results.values = mangas;
-                results.count = mangas.size();
-            } else {
-                List<Manga> filteredMangas = Observable.from(mangas)
-                        .filter(x ->
-                                (x.title != null && x.title.toLowerCase().contains(query)) ||
-                                (x.author != null && x.author.toLowerCase().contains(query)) ||
-                                (x.artist != null && x.artist.toLowerCase().contains(query)))
-                        .toList()
-                        .toBlocking()
-                        .single();
-                results.values = filteredMangas;
-                results.count = filteredMangas.size();
-            }
-
-            return results;
-        }
-
-        @Override
-        public void publishResults(CharSequence constraint, FilterResults results) {
-            setItems((List<Manga>) results.values);
-        }
-    }
-
 }

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryCategoryFragment.java

@@ -37,6 +37,7 @@ public class LibraryCategoryFragment extends BaseFragment
     private List<Manga> mangas;
 
     private Subscription numColumnsSubscription;
+    private Subscription searchSubscription;
 
     public static LibraryCategoryFragment newInstance(int position) {
         LibraryCategoryFragment fragment = new LibraryCategoryFragment();
@@ -77,12 +78,19 @@ public class LibraryCategoryFragment extends BaseFragment
             }
         }
 
+        searchSubscription = getLibraryPresenter().searchSubject
+                .subscribe(text -> {
+                    adapter.setSearchText(text);
+                    adapter.updateDataSet();
+                });
+
         return view;
     }
 
     @Override
     public void onDestroyView() {
         numColumnsSubscription.unsubscribe();
+        searchSubscription.unsubscribe();
         super.onDestroyView();
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryFragment.java

@@ -7,6 +7,8 @@ import android.support.design.widget.AppBarLayout;
 import android.support.design.widget.TabLayout;
 import android.support.v4.view.ViewPager;
 import android.support.v7.view.ActionMode;
+import android.support.v7.widget.SearchView;
+import android.text.TextUtils;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuInflater;
@@ -48,6 +50,7 @@ public class LibraryFragment extends BaseRxFragment<LibraryPresenter>
     private ActionMode actionMode;
 
     @State int activeCategory;
+    @State String query = "";
 
     public static LibraryFragment newInstance() {
         return new LibraryFragment();
@@ -60,8 +63,7 @@ public class LibraryFragment extends BaseRxFragment<LibraryPresenter>
     }
 
     @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container,
-                             Bundle savedInstanceState) {
+    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedState) {
         // Inflate the layout for this fragment
         View view = inflater.inflate(R.layout.fragment_library, container, false);
         setToolbarTitle(getString(R.string.label_library));
@@ -75,6 +77,10 @@ public class LibraryFragment extends BaseRxFragment<LibraryPresenter>
         viewPager.setAdapter(adapter);
         tabs.setupWithViewPager(viewPager);
 
+        if (savedState != null) {
+            getPresenter().searchSubject.onNext(query);
+        }
+
         return view;
     }
 
@@ -99,6 +105,29 @@ public class LibraryFragment extends BaseRxFragment<LibraryPresenter>
     @Override
     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
         inflater.inflate(R.menu.library, menu);
+
+        // Initialize search menu
+        MenuItem searchItem = menu.findItem(R.id.action_search);
+        final SearchView searchView = (SearchView) searchItem.getActionView();
+
+        if (!TextUtils.isEmpty(query)) {
+            searchItem.expandActionView();
+            searchView.setQuery(query, true);
+            searchView.clearFocus();
+        }
+        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
+            @Override
+            public boolean onQueryTextSubmit(String query) {
+                onSearchTextChange(query);
+                return true;
+            }
+
+            @Override
+            public boolean onQueryTextChange(String newText) {
+                onSearchTextChange(newText);
+                return true;
+            }
+        });
     }
 
     @Override
@@ -115,6 +144,11 @@ public class LibraryFragment extends BaseRxFragment<LibraryPresenter>
         return super.onOptionsItemSelected(item);
     }
 
+    private void onSearchTextChange(String query) {
+        this.query = query;
+        getPresenter().searchSubject.onNext(query);
+    }
+
     private void onEditCategories() {
         Intent intent = CategoryActivity.newIntent(getActivity());
         startActivity(intent);

app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryPresenter.java

@@ -21,6 +21,7 @@ import eu.kanade.tachiyomi.event.LibraryMangasEvent;
 import eu.kanade.tachiyomi.ui.base.presenter.BasePresenter;
 import rx.Observable;
 import rx.android.schedulers.AndroidSchedulers;
+import rx.subjects.BehaviorSubject;
 
 public class LibraryPresenter extends BasePresenter<LibraryFragment> {
 
@@ -32,6 +33,8 @@ public class LibraryPresenter extends BasePresenter<LibraryFragment> {
     protected List<Category> categories;
     protected List<Manga> selectedMangas;
 
+    protected BehaviorSubject<String> searchSubject;
+
     private static final int GET_LIBRARY = 1;
 
     @Override
@@ -40,6 +43,8 @@ public class LibraryPresenter extends BasePresenter<LibraryFragment> {
 
         selectedMangas = new ArrayList<>();
 
+        searchSubject = BehaviorSubject.create();
+
         restartableLatestCache(GET_LIBRARY,
                 this::getLibraryObservable,
                 (view, pair) -> view.onNextLibraryUpdate(pair.first, pair.second));

app/src/main/res/menu/library.xml

@@ -2,21 +2,17 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools" tools:context=".MainActivity">
 
-    <!--
     <item
         android:id="@+id/action_search"
         android:title="@string/action_search"
         android:icon="@drawable/ic_action_search"
-        android:orderInCategory="100"
         app:showAsAction="collapseActionView|ifRoom"
         app:actionViewClass="android.support.v7.widget.SearchView" />
-        -->
 
     <item
         android:id="@+id/action_refresh"
         android:title="@string/action_refresh"
         android:icon="@drawable/ic_action_refresh"
-        android:orderInCategory="1"
         app:showAsAction="ifRoom" />
 
     <item