com.btmura.android.reddit.app.ThingActivity.java Source code

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Here is the source code for com.btmura.android.reddit.app.ThingActivity.java

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/*
 * Copyright (C) 2012 Brian Muramatsu
 *
 * 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 com.btmura.android.reddit.app;

import android.app.ActionBar;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.FragmentTransaction;
import android.support.v4.app.LoaderManager.LoaderCallbacks;
import android.support.v4.app.NavUtils;
import android.support.v4.app.TaskStackBuilder;
import android.support.v4.content.Loader;
import android.view.MenuItem;

import com.btmura.android.reddit.R;
import com.btmura.android.reddit.content.AccountLoader;
import com.btmura.android.reddit.content.AccountLoader.AccountResult;
import com.btmura.android.reddit.content.ThemePrefs;
import com.btmura.android.reddit.text.MarkdownFormatter;
import com.btmura.android.reddit.util.Objects;
import com.btmura.android.reddit.util.Strings;

public class ThingActivity extends GlobalMenuActivity
        implements LoaderCallbacks<AccountResult>, OnThingEventListener, AccountNameHolder, SubredditHolder {

    public static final String EXTRA_THING_BUNDLE = "thingBundle";

    private static final String THING_FRAGMENT_TAG = "thing";

    private String accountName;
    private ThingBundle thingBundle;
    private final MarkdownFormatter formatter = new MarkdownFormatter();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setTheme(ThemePrefs.getTheme(this));
        setContentView(R.layout.thing);
        setupPrereqs();
        setupFragments(savedInstanceState);
        setupActionBar();
        getSupportLoaderManager().initLoader(0, null, this);
    }

    private void setupPrereqs() {
        thingBundle = getIntent().getParcelableExtra(EXTRA_THING_BUNDLE);
    }

    private void setupFragments(Bundle savedInstanceState) {
        if (savedInstanceState == null) {
            FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
            ft.add(GlobalMenuFragment.newInstance(), GlobalMenuFragment.TAG);
            ft.commit();
        }
    }

    private void setupActionBar() {
        ActionBar bar = getActionBar();
        bar.setDisplayOptions(
                ActionBar.DISPLAY_SHOW_HOME | ActionBar.DISPLAY_HOME_AS_UP | ActionBar.DISPLAY_SHOW_TITLE);
        refreshTitle(thingBundle.hasLinkId() ? thingBundle.getLinkTitle() : thingBundle.getTitle());
    }

    private void refreshTitle(String title) {
        setTitle(Strings.toString(formatter.formatAll(this, title)));
    }

    @Override
    public Loader<AccountResult> onCreateLoader(int id, Bundle args) {
        return new AccountLoader(this, true, false);
    }

    @Override
    public void onLoadFinished(Loader<AccountResult> loader, AccountResult result) {
        this.accountName = result.getLastAccount(this);
        ThingFragment frag = ThingFragment.newInstance(accountName, thingBundle);
        if (!Objects.equals(frag, getThingFragment())) {
            FragmentTransaction ft = getSupportFragmentManager().beginTransaction();
            ft.replace(R.id.thing_container, frag, THING_FRAGMENT_TAG);
            ft.commitAllowingStateLoss();
            invalidateOptionsMenu();
        }
    }

    @Override
    public void onLoaderReset(Loader<AccountResult> loader) {
    }

    @Override
    public void onThingTitleDiscovery(String title) {
        refreshTitle(title);
    }

    @Override
    public String getAccountName() {
        return accountName;
    }

    @Override
    public String getSubreddit() {
        return thingBundle.getSubreddit();
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case android.R.id.home:
            handleHome();
            return true;

        default:
            return super.onOptionsItemSelected(item);
        }
    }

    private void handleHome() {
        Intent upIntent = NavUtils.getParentActivityIntent(this);
        upIntent.putExtra(BrowserActivity.EXTRA_SUBREDDIT, getSubreddit());
        if (NavUtils.shouldUpRecreateTask(this, upIntent)) {
            TaskStackBuilder.create(this).addNextIntentWithParentStack(upIntent).startActivities();
        } else {
            NavUtils.navigateUpFromSameTask(this);
        }
    }

    private ThingFragment getThingFragment() {
        return (ThingFragment) getSupportFragmentManager().findFragmentByTag(THING_FRAGMENT_TAG);
    }
}