/*
 *				Tweetings - Twitter client for Android
 * 
 * Copyright (C) 2012-2013 RBD Solutions Limited <apps@tweetings.net>
 * Copyright (C) 2012 Mariotaku Lee <mariotaku.lee@gmail.com>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.dwdesign.tweetings.fragment;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewParent;
import android.view.Window;

/**
 * This is a fragment that will be used during transition from activities to
 * fragments.
 */
public abstract class ActivityHostFragment<A extends Activity> extends LocalActivityManagerFragment {

	private final static String ACTIVITY_TAG = "hosted";
	private A mAttachedActivity;

	public A getAttachedActivity() {
		return mAttachedActivity;
	}

	@SuppressWarnings({ "deprecation", "unchecked" })
	@Override
	public View onCreateView(final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) {
		final Intent intent = new Intent(getActivity(), getActivityClass());
		final Bundle args = getArguments();
		if (args != null) {
			intent.putExtras(args);
		}

		final Window w = getLocalActivityManager().startActivity(ACTIVITY_TAG, intent);
		mAttachedActivity = null;
		final Context context = w.getContext();
		if (context instanceof Activity) {
			try {
				mAttachedActivity = (A) context;
			} catch (final ClassCastException e) {
				// This should't happen.
				e.printStackTrace();
			}
		}
		final View wd = w != null ? w.getDecorView() : null;

		if (wd != null) {
			final ViewParent parent = wd.getParent();
			if (parent != null) {
				final ViewGroup v = (ViewGroup) parent;
				v.removeView(wd);
			}

			wd.setVisibility(View.VISIBLE);
			wd.setFocusableInTouchMode(true);
			if (wd instanceof ViewGroup) {
				((ViewGroup) wd).setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
			}
		}
		return wd;
	}

	protected abstract Class<A> getActivityClass();
}