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

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Here is the source code for com.btmura.android.reddit.app.GlobalMenuFragment.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.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnFocusChangeListener;
import android.widget.SearchView;
import android.widget.SearchView.OnQueryTextListener;

import com.btmura.android.reddit.BuildConfig;
import com.btmura.android.reddit.R;

public class GlobalMenuFragment extends Fragment implements OnFocusChangeListener, OnQueryTextListener {

    // TODO: Split this apart into separate fragments.

    public static final String TAG = "GlobalMenuFragment";

    private static final boolean SHOW_DEBUG = BuildConfig.DEBUG && true;

    private static final int REQUEST_SEARCH = 0;

    /** Handler that will accept search queries and perform them. */
    public interface SearchQueryHandler {
        /** Submit a new search query to the handler. */
        boolean submitQuery(String query);

        /** Get the current search query to populate the search query box. */
        String getQuery();
    }

    private SubredditHolder subredditNameHolder;
    private SearchQueryHandler listener;
    private SearchView searchView;
    private MenuItem searchItem;

    public static GlobalMenuFragment newInstance() {
        return new GlobalMenuFragment();
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        if (activity instanceof SubredditHolder) {
            subredditNameHolder = (SubredditHolder) activity;
        }
        if (activity instanceof SearchQueryHandler) {
            listener = (SearchQueryHandler) activity;
        }
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setHasOptionsMenu(true);
    }

    @Override
    public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
        super.onCreateOptionsMenu(menu, inflater);
        inflater.inflate(R.menu.global_menu, menu);
        searchItem = menu.findItem(R.id.menu_search);
        searchView = (SearchView) searchItem.getActionView();
        searchView.setOnQueryTextFocusChangeListener(this);
        searchView.setOnQueryTextListener(this);
        menu.findItem(R.id.menu_debug).setVisible(SHOW_DEBUG);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // GlobalMenuFragment handles more menu items than it presents for
        // convenience. Some other items have complicated visibility logic, so
        // they aren't inflated in this fragment.
        switch (item.getItemId()) {
        case R.id.menu_search:
            handleSearch();
            return true;

        case R.id.menu_debug:
            handleDebug();
            return true;

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

    public void handleSearch() {
        searchItem.expandActionView();

        // Set this to the previous query.
        // This MUST come after expandActionView to work.
        if (listener != null) {
            searchView.setQuery(listener.getQuery(), false);
        }
    }

    private void handleDebug() {
        MenuHelper.startContentBrowserActivity(getActivity());
    }

    public void onFocusChange(View v, boolean hasFocus) {
        if (!hasFocus) {
            searchItem.collapseActionView();
        }
    }

    public boolean onQueryTextChange(String newText) {
        return false;
    }

    public boolean onQueryTextSubmit(String query) {
        if (listener != null && listener.submitQuery(query)) {
            searchItem.collapseActionView();
        } else {
            Intent intent = new Intent(getActivity(), SearchActivity.class);
            intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_WHEN_TASK_RESET | Intent.FLAG_ACTIVITY_NO_ANIMATION);
            intent.putExtra(SearchActivity.EXTRA_SUBREDDIT, subredditNameHolder.getSubreddit());
            intent.putExtra(SearchActivity.EXTRA_QUERY, query);
            startActivityForResult(intent, REQUEST_SEARCH);
        }
        return true;
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        switch (requestCode) {
        case REQUEST_SEARCH:
            if (searchItem != null) {
                searchItem.collapseActionView();
            }
            break;

        default:
            super.onActivityResult(requestCode, resultCode, data);
        }
    }
}