X-Git-Url: https://git.mdrn.pl/wl-app.git/blobdiff_plain/48b2fe9f7c2dc3d9aeaaa6dbfb27c7da4f3235ff..269195b3729c1bdc22e9053ee4ebca667ea8549d:/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
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+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();
+	}
+}