Added Android code

[wl-app.git] / Android / app / src / main / java / com / moiseum / wolnelektury / view / book / list / BooksListFragment.java

diff --git a/Android/app/src/main/java/com/moiseum/wolnelektury/view/book/list/BooksListFragment.java b/Android/app/src/main/java/com/moiseum/wolnelektury/view/book/list/BooksListFragment.java
new file mode 100644 (file)
index 0000000..0bb96fb
--- /dev/null
+++ b/Android/app/src/main/java/com/moiseum/wolnelektury/view/book/list/BooksListFragment.java
@@ -0,0 +1,184 @@
+package com.moiseum.wolnelektury.view.book.list;
+
+import android.os.Bundle;
+import android.support.v7.widget.LinearLayoutManager;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.Button;
+import android.widget.ProgressBar;
+import android.widget.Toast;
+
+import com.moiseum.wolnelektury.R;
+import com.moiseum.wolnelektury.base.mvp.PresenterFragment;
+import com.moiseum.wolnelektury.components.ProgressRecyclerView;
+import com.moiseum.wolnelektury.components.recycler.EndlessRecyclerOnScrollListener;
+import com.moiseum.wolnelektury.connection.models.BookModel;
+import com.moiseum.wolnelektury.view.book.BookActivity;
+import com.moiseum.wolnelektury.view.book.BookType;
+import com.moiseum.wolnelektury.view.main.MainActivity;
+import com.moiseum.wolnelektury.view.main.NavigationElement;
+
+import org.greenrobot.eventbus.EventBus;
+
+import java.util.List;
+
+import butterknife.BindView;
+import butterknife.OnClick;
+
+/**
+ * @author golonkos
+ */
+
+public class BooksListFragment extends PresenterFragment<BooksListPresenter> implements BooksListView {
+
+       private static final String PARAM_LIST_TYPE = "PARAM_LIST_TYPE";
+
+       @BindView(R.id.rvBooksList)
+       ProgressRecyclerView<BookModel> rvBooksList;
+       @BindView(R.id.pbLoadMore)
+       ProgressBar pbLoadMore;
+       @BindView(R.id.btnReloadMore)
+       Button btnReloadMore;
+
+       public static BooksListFragment newInstance(BookListType type) {
+               BooksListFragment fragment = new BooksListFragment();
+               Bundle args = new Bundle(1);
+               args.putSerializable(PARAM_LIST_TYPE, type);
+               fragment.setArguments(args);
+               return fragment;
+       }
+
+       private BookListType type;
+       private BooksListAdapter adapter;
+
+       private EndlessRecyclerOnScrollListener rvBooksScrollListener = new EndlessRecyclerOnScrollListener() {
+               @Override
+               public void onLoadMore() {
+                       if (adapter.getItemCount() > 0) {
+                               getPresenter().loadMoreBooks();
+                       }
+               }
+       };
+
+       @Override
+       public void onCreate(Bundle savedInstanceState) {
+               if (getArguments() == null || getArguments().getSerializable(PARAM_LIST_TYPE) == null) {
+                       throw new IllegalStateException("Missing list type parameter.");
+               }
+               type = (BookListType) getArguments().getSerializable(PARAM_LIST_TYPE);
+               super.onCreate(savedInstanceState);
+       }
+
+       @Override
+       protected BooksListPresenter createPresenter() {
+               return new BooksListPresenter(this, type);
+       }
+
+       @Override
+       public int getLayoutResourceId() {
+               return R.layout.fragment_books_list;
+       }
+
+       @Override
+       public void prepareView(View view, Bundle savedInstanceState) {
+               LinearLayoutManager layoutManager = new LinearLayoutManager(getContext());
+               rvBooksList.setLayoutManager(layoutManager);
+               rvBooksList.addOnScrollListener(rvBooksScrollListener);
+
+               adapter = new BooksListAdapter(getContext());
+               adapter.setOnItemClickListener((item, view1, position) -> getPresenter().onBookClicked(item, position));
+               if (type.isDeletable()) {
+                       adapter.setOnDeleteListener((book, position) -> {
+                               getPresenter().onBookDeleteClicked(book);
+                               adapter.removeItem(position);
+                               Toast.makeText(getContext() ,getString(R.string.book_deleted_message), Toast.LENGTH_SHORT).show();
+                       });
+               }
+               rvBooksList.setAdapter(adapter);
+               rvBooksList.setEmptyText(type.getEmptyListText());
+               if (type.isSearchable()) {
+                       setHasOptionsMenu(true);
+               }
+       }
+
+       @Override
+       public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
+               super.onCreateOptionsMenu(menu, inflater);
+               if (type.isSearchable()) {
+                       inflater.inflate(R.menu.menu_searchable, menu);
+               }
+       }
+
+       @Override
+       public boolean onOptionsItemSelected(MenuItem item) {
+               if (item.getItemId() == R.id.action_search) {
+                       EventBus.getDefault().post(new MainActivity.ChangeNavigationEvent(NavigationElement.SEARCH));
+               }
+               return super.onOptionsItemSelected(item);
+       }
+
+       @Override
+       protected String getNameForTracker() {
+               return type.getNameForTracker();
+       }
+
+       @Override
+       public void setData(List<BookModel> books) {
+               if (adapter.getItemCount() == 0) {
+                       rvBooksList.setItems(books);
+               } else {
+                       rvBooksList.addItems(books);
+               }
+       }
+
+       @Override
+       public void clearList() {
+               adapter.clear();
+       }
+
+       @Override
+       public void setProgressVisible(boolean visible) {
+               if (adapter.getItemCount() == 0) {
+                       rvBooksList.setProgressVisible(visible);
+               } else {
+                       pbLoadMore.setVisibility(visible ? View.VISIBLE : View.GONE);
+               }
+       }
+
+       @Override
+       public void showError(Exception e) {
+               Toast.makeText(getContext(), R.string.loading_results_failed, Toast.LENGTH_SHORT).show();
+               if (adapter.getItemCount() != 0) {
+                       btnReloadMore.setVisibility(View.VISIBLE);
+               } else {
+                       rvBooksList.showRetryButton(() -> getPresenter().reloadBooks());
+               }
+       }
+
+       @Override
+       public void openBookDetailsView(String bookSlug) {
+               startActivity(new BookActivity.BookIntent(bookSlug, BookType.TYPE_DEFAULT, getActivity()));
+       }
+
+       @Override
+       public void updateEmptyViewVisibility() {
+               rvBooksList.updateEmptyViewVisibility();
+       }
+
+       @Override
+       public void updateFavouriteState(boolean state, Integer clickedPosition) {
+               if (clickedPosition != null) {
+                       adapter.getItem(clickedPosition).setLiked(state);
+                       adapter.notifyDataSetChanged();
+               }
+       }
+
+       @OnClick(R.id.btnReloadMore)
+       public void onReloadMoreClicked() {
+               btnReloadMore.setVisibility(View.GONE);
+               pbLoadMore.setVisibility(View.VISIBLE);
+               getPresenter().loadMoreBooks();
+       }
+}