PullRequestFilesFragment.java

package com.fastaccess.ui.modules.repos.pull_requests.pull_request.details.files;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.annotation.Nullable;
import android.support.annotation.StringRes;
import android.support.v4.widget.SwipeRefreshLayout;
import android.view.View;

import com.fastaccess.R;
import com.fastaccess.data.dao.CommitFileModel;
import com.fastaccess.data.dao.SparseBooleanArrayParcelable;
import com.fastaccess.helper.ActivityHelper;
import com.fastaccess.helper.BundleConstant;
import com.fastaccess.helper.Bundler;
import com.fastaccess.provider.rest.loadmore.OnLoadMore;
import com.fastaccess.ui.adapter.CommitFilesAdapter;
import com.fastaccess.ui.base.BaseFragment;
import com.fastaccess.ui.widgets.StateLayout;
import com.fastaccess.ui.widgets.recyclerview.DynamicRecyclerView;

import java.util.List;

import butterknife.BindView;
import icepick.State;

/**
 * Created by Kosh on 03 Dec 2016, 3:56 PM
 */

public class PullRequestFilesFragment extends BaseFragment<PullRequestFilesMvp.View, PullRequestFilesPresenter>
        implements PullRequestFilesMvp.View {

    @BindView(R.id.recycler) DynamicRecyclerView recycler;
    @BindView(R.id.refresh) SwipeRefreshLayout refresh;
    @BindView(R.id.stateLayout) StateLayout stateLayout;
    private OnLoadMore onLoadMore;
    @State SparseBooleanArrayParcelable sparseBooleanArray;
    private CommitFilesAdapter adapter;

    public static PullRequestFilesFragment newInstance(@NonNull String repoId, @NonNull String login, long number) {
        PullRequestFilesFragment view = new PullRequestFilesFragment();
        view.setArguments(Bundler.start()
                .put(BundleConstant.ID, repoId)
                .put(BundleConstant.EXTRA, login)
                .put(BundleConstant.EXTRA_TWO, number)
                .end());
        return view;
    }

    @Override public void onNotifyAdapter(@Nullable List<CommitFileModel> items, int page) {
        hideProgress();
        if (items == null || items.isEmpty()) {
            adapter.clear();
            return;
        }
        if (page <= 1) {
            adapter.insertItems(items);
        } else {
            adapter.addItems(items);
        }
    }

    @Override protected int fragmentLayout() {
        return R.layout.small_grid_refresh_list;
    }

    @Override protected void onFragmentCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        if (getArguments() == null) {
            throw new NullPointerException("Bundle is null, therefore, PullRequestFilesFragment can't be proceeded.");
        }
        stateLayout.setEmptyText(R.string.no_commits);
        stateLayout.setOnReloadListener(this);
        refresh.setOnRefreshListener(this);
        recycler.setEmptyView(stateLayout, refresh);
        adapter = new CommitFilesAdapter(getPresenter().getFiles(), this);
        adapter.setListener(getPresenter());
        getLoadMore().setCurrent_page(getPresenter().getCurrentPage(), getPresenter().getPreviousTotal());
        recycler.setAdapter(adapter);
        recycler.addKeyLineDivider();
        recycler.addOnScrollListener(getLoadMore());
        if (savedInstanceState == null) {
            getPresenter().onFragmentCreated(getArguments());
        } else if (getPresenter().getFiles().isEmpty() && !getPresenter().isApiCalled()) {
            onRefresh();
        }
    }

    @NonNull @Override public PullRequestFilesPresenter providePresenter() {
        return new PullRequestFilesPresenter();
    }

    @Override public void showProgress(@StringRes int resId) {

refresh.setRefreshing(true);

        stateLayout.showProgress();
    }

    @Override public void hideProgress() {
        refresh.setRefreshing(false);
        stateLayout.hideProgress();
    }

    @Override public void showErrorMessage(@NonNull String message) {
        showReload();
        super.showErrorMessage(message);
    }

    @Override public void showMessage(int titleRes, int msgRes) {
        showReload();
        super.showMessage(titleRes, msgRes);
    }

    private void showReload() {
        hideProgress();
        stateLayout.showReload(adapter.getItemCount());
    }

    @SuppressWarnings("unchecked") @NonNull @Override public OnLoadMore getLoadMore() {
        if (onLoadMore == null) {
            onLoadMore = new OnLoadMore(getPresenter());
        }
        return onLoadMore;
    }

    @Override public void onRefresh() {
        getPresenter().onCallApi(1, null);
    }

    @Override public void onClick(View view) {
        onRefresh();
    }

    @Override public void onToggle(int position, boolean isCollapsed) {
        if (adapter.getItem(position).getPatch() == null) {
            ActivityHelper.openChooser(getContext(), adapter.getItem(position).getBlobUrl());
        }
        getSparseBooleanArray().put(position, isCollapsed);
    }

    @Override public boolean isCollapsed(int position) {
        return getSparseBooleanArray().get(position);
    }

    public SparseBooleanArrayParcelable getSparseBooleanArray() {
        if (sparseBooleanArray == null) {
            sparseBooleanArray = new SparseBooleanArrayParcelable();
        }
        return sparseBooleanArray;
    }
}