GeneViewActivity.java

package org.intermine.app.activity;

/*
 * Copyright (C) 2015 InterMine
 *
 * This code may be freely distributed and modified under the
 * terms of the GNU Lesser General Public Licence.  This should
 * be distributed with the code.  See the LICENSE file for more
 * information or http://www.gnu.org/copyleft/lesser.html.
 *
 */

import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.os.Bundle;
import android.support.v4.app.FragmentManager;
import android.support.v7.app.ActionBar;
import android.support.v7.widget.Toolbar;
import android.widget.Toast;

import org.intermine.app.R;
import org.intermine.app.core.Gene;
import org.intermine.app.fragment.GeneViewFragment;
import org.intermine.app.util.Sharing;
import org.intermine.app.util.Strs;
import org.intermine.app.util.Uris;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import butterknife.ButterKnife;
import butterknife.InjectView;

public class GeneViewActivity extends BaseActivity implements GeneViewFragment.GeneActionCallbacks {
    private static final String CLASS_PARAM = "class";
    private static final String CLASS_DEFAULT_VALUE = "Gene";
    private static final String EXTERNALIDS = "externalids";

    @InjectView(R.id.default_toolbar)
    Toolbar mToolbar;

    private Gene mGene;

    // --------------------------------------------------------------------------------------------
    // Static Methods
    // --------------------------------------------------------------------------------------------

    /**
     * Conventional method for starting activity
     *
     * @param ctx  Context
     * @param gene Gene to show basic info about
     */
    public static void start(Context ctx, Gene gene) {
        Intent intent = new Intent(ctx, GeneViewActivity.class);
        intent.putExtra(GeneViewFragment.GENE_EXTRA, gene);
        ctx.startActivity(intent);
    }

    // --------------------------------------------------------------------------------------------
    // Activity Lifecycle
    // --------------------------------------------------------------------------------------------

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.gene_view_activity);
        ButterKnife.inject(this);

        initToolbar();

        Intent intent = getIntent();
        Bundle bundle = intent.getExtras();

        if (null != bundle) {
            mGene = bundle.getParcelable(GeneViewFragment.GENE_EXTRA);
        }

        if (null == savedInstanceState) {
            FragmentManager manager = getSupportFragmentManager();
            manager.beginTransaction().add(R.id.main, GeneViewFragment.newInstance(mGene)).commit();
        }
    }

    // --------------------------------------------------------------------------------------------
    //  Event Listeners
    // --------------------------------------------------------------------------------------------

    @Override
    public void onGeneAddedToFavorites(Gene gene) {
        getStorage().addGeneToFavorites(gene);
        Toast.makeText(this, R.string.gene_added_to_favorites, Toast.LENGTH_LONG).show();
    }

    @Override
    public void onGeneSelectedToBeShared(Gene gene) {
        shareText();
    }

    @Override
    public void onShowGeneReport(Gene gene) {
        String geneReportUrl = generateGeneReportUrl(gene);

        if (!Strs.isNullOrEmpty(geneReportUrl)) {
            String title = "Gene Report";

            if (!Strs.isNullOrEmpty(gene.getSymbol())) {
                title = "Gene " + gene.getSymbol() + " Report";
            }
            WebActivity.start(this, title, geneReportUrl);
        }
    }

    // --------------------------------------------------------------------------------------------
    // Helper Methods
    // --------------------------------------------------------------------------------------------

    protected void shareText() {
        Intent intent = Sharing.generateIntentToSendText(mGene);

        PackageManager manager = getPackageManager();
        List<ResolveInfo> infos = manager.queryIntentActivities(intent, 0);

        if (infos.size() > 0) {
            startActivity(Intent.createChooser(intent,
                    getResources().getString(R.string.share_message)));
        } else {
            Toast.makeText(this, "No messenger installed.", Toast.LENGTH_SHORT).show();
        }
    }

    private String generateGeneReportUrl(Gene gene) {
        if (!Strs.isNullOrEmpty(gene.getMine())) {
            String webAppUrl = mStorage.getMineWebAppUrl(gene.getMine());

            if (!Strs.isNullOrEmpty(webAppUrl)) {
                Map<String, String> params = new HashMap<>();
                params.put(CLASS_PARAM, CLASS_DEFAULT_VALUE);
                params.put(EXTERNALIDS, gene.getPrimaryDBId());
                return Uris.expandQuery(webAppUrl + getString(R.string.report_path), params);
            }
        }
        return Strs.EMPTY_STRING;
    }

    private void initToolbar() {
        setSupportActionBar(mToolbar);
        final ActionBar actionBar = getSupportActionBar();

        if (actionBar != null) {
            actionBar.setDisplayHomeAsUpEnabled(true);
        }
    }
}