uk.ac.hutton.ics.buntata.fragment.DatasourceFragment.java Source code

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Here is the source code for uk.ac.hutton.ics.buntata.fragment.DatasourceFragment.java

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/*
 * Copyright 2016 Information & Computational Sciences, The James Hutton Institute
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package uk.ac.hutton.ics.buntata.fragment;

import android.os.*;
import android.support.v4.app.*;
import android.support.v4.content.*;
import android.support.v7.widget.*;
import android.view.*;
import android.widget.*;

import com.heinrichreimersoftware.materialintro.app.*;

import java.util.*;

import butterknife.*;
import jhi.buntata.resource.*;
import uk.ac.hutton.ics.buntata.R;
import uk.ac.hutton.ics.buntata.activity.*;
import uk.ac.hutton.ics.buntata.adapter.*;
import uk.ac.hutton.ics.buntata.database.entity.*;
import uk.ac.hutton.ics.buntata.service.*;

/**
 * The {@link DatasourceFragment} shows all the {@link BuntataDatasource}s that are available locally and the ones available online (if connection
 * available).
 *
 * @author Sebastian Raubach
 */
public class DatasourceFragment extends Fragment {
    @BindView(R.id.datasource_network_layout)
    LinearLayout layout;
    @BindView(R.id.datasource_text)
    TextView text;
    @BindView(R.id.datasource_recycler_view)
    RecyclerView recyclerView;
    @BindView(R.id.datasource_network_warning)
    TextView networkWarning;
    @BindView(R.id.datasource_network_refresh)
    Button networkButton;

    private DatasourceAdapter adapter;

    private Unbinder unbinder;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fragment_datasource, container, false);

        unbinder = ButterKnife.bind(this, view);

        setRetainInstance(true);

        if (getActivity() instanceof IntroActivity)
            text.setTextColor(ContextCompat.getColor(getActivity(), android.R.color.white));

        recyclerView.setHasFixedSize(false);
        recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
        recyclerView.setItemAnimator(null);

        int valueInPixels = (int) getResources().getDimension(R.dimen.activity_vertical_margin) / 2;
        recyclerView
                .addItemDecoration(new GridSpacingItemDecoration(1, valueInPixels, valueInPixels, valueInPixels));

        /* If  this is part of the DatasourceActivity, then load the content here */
        if (getActivity() instanceof DatasourceActivity)
            updateStatus();

        return view;
    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();

        unbinder.unbind();
    }

    @Override
    public void setUserVisibleHint(boolean isVisibleToUser) {
        super.setUserVisibleHint(isVisibleToUser);

        /* If this is part of the IntroActivity, then only load the content once this is visible. Otherwise it'll load this fragment already on the previous page. */
        if (isVisibleToUser && getActivity() instanceof IntroActivity)
            updateStatus();
    }

    private void updateStatus() {
        //      if (!NetworkUtils.hasNetworkConnection(getActivity()))
        //      {
        //         networkWarning.setVisibility(View.VISIBLE);
        //      }
        //      else
        //      {
        layout.setVisibility(View.GONE);
        requestData();
        //      }
    }

    @OnClick(R.id.datasource_network_refresh)
    public void onNetworkRefresh() {
        requestData();
    }

    private void requestData() {
        final boolean cancelable = getActivity() instanceof DatasourceActivity;

        final List<BuntataDatasourceAdvanced> datasources = new ArrayList<>();

        /* Set it initially */
        adapter = new DatasourceAdapter(getActivity(), recyclerView, datasources);
        recyclerView.setAdapter(adapter);

        DatasourceService.getAllAdvanced(getActivity(), cancelable, true,
                new RemoteCallback<List<BuntataDatasourceAdvanced>>(getActivity()) {
                    @Override
                    public void onSuccess(List<BuntataDatasourceAdvanced> result) {
                        if (result.size() < 1) {
                            layout.setVisibility(View.VISIBLE);
                        } else {
                            layout.setVisibility(View.GONE);

                            adapter = new DatasourceAdapter(getActivity(), recyclerView, result);
                            recyclerView.setAdapter(adapter);
                        }
                    }
                });
    }
}