FExListFragment.java

package de.skubware.opentraining.activity.start_training;

/**
 * 
 * This is OpenTraining, an Android application for planning your your fitness training.
 * Copyright (C) 2012-2014 Christian Skubich
 * 
 * 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/>.
 * 
 */

import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.ListFragment;
import android.view.View;
import android.widget.ListView;
import android.widget.Toast;

import de.skubware.opentraining.basic.FitnessExercise;
import de.skubware.opentraining.basic.Workout;

/**
 * A list fragment representing a list of Exercise. This fragment also supports
 * tablet devices by allowing list items to be given an 'activated' state upon
 * selection. This helps indicate which item is currently being viewed in a
 * {@link FExDetailFragment}.
 * <p>
 * Activities containing this fragment MUST implement the {@link Callbacks}
 * interface.
 */
public class FExListFragment extends ListFragment {

	/** Tag for logging */
	public static final String TAG = FExListFragment.class.getName();

	/**
	 * The serialization (saved instance state) Bundle key representing the
	 * activated item position. Only used on tablets.
	 */
	private static final String STATE_ACTIVATED_POSITION = "activated_position";

	public static final String ARG_WORKOUT = "workout";

	private Workout mWorkout;

	/**
	 * Create a new instance of MyDialogFragment, providing "num" as an
	 * argument.
	 * 
	 * @param mWorkout
	 */
	static FExListFragment newInstance(Workout mWorkout) {
		FExListFragment f = new FExListFragment();

		Bundle args = new Bundle();
		args.putSerializable(ARG_WORKOUT, mWorkout);
		f.setArguments(args);

		return f;
	}
	

	/**
	 * The fragment's current callback object, which is notified of list item
	 * clicks.
	 */
	private Callbacks mCallbacks = sDummyCallbacks;

	/**
	 * The current activated item position. Only used on tablets.
	 */
	private int mActivatedPosition = ListView.INVALID_POSITION;

	/**
	 * A callback interface that all activities containing this fragment must
	 * implement. This mechanism allows activities to be notified of item
	 * selections.
	 */
	public interface Callbacks {
		/**
		 * Callback for when an item has been selected.
		 */
		public void onItemSelected(FitnessExercise fitnessExercise);
	}

	/**
	 * A dummy implementation of the {@link Callbacks} interface that does
	 * nothing. Used only when this fragment is not attached to an activity.
	 */
	private static Callbacks sDummyCallbacks = new Callbacks() {
		@Override
		public void onItemSelected(FitnessExercise id) {
		}
	};

	/**
	 * Mandatory empty constructor for the fragment manager to instantiate the
	 * fragment (e.g. upon screen orientation changes).
	 */
	public FExListFragment() {
	}

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

		if (savedInstanceState != null) {
			mWorkout = (Workout) savedInstanceState.getSerializable(ARG_WORKOUT);
			setWorkout(mWorkout);
		}

	}

	public void setWorkout(Workout workout) {
		mWorkout = workout;

		FExListAdapter adapter = new FExListAdapter((FragmentActivity) getActivity(), mWorkout);
		setListAdapter(adapter);
		
		boolean finished = true;
		for(FitnessExercise fEx:mWorkout.getFitnessExercises()){
			finished &=fEx.isTrainingEntryFinished(fEx.getLastTrainingEntry());
		}
		if(finished){
			// stop recovery timer if the exercise was the last one
			RecoveryTimerManager.INSTANCE.stopRecoveryTimer(getActivity());
			Toast.makeText(getActivity(), getString(de.skubware.opentraining.R.string.workout_finished), Toast.LENGTH_LONG).show();
		}
		
	}
	
	@Override
	public void onListItemClick(ListView listView, View view, int position, long id) {
		super.onListItemClick(listView, view, position, id);
 
		// Notify the active callbacks interface (the activity, if the
		// fragment is attached to one) that an item has been selected.
		mCallbacks.onItemSelected((FitnessExercise) listView.getAdapter().getItem(position));
	}
 

	@Override
	public void onViewCreated(View view, Bundle savedInstanceState) {
		super.onViewCreated(view, savedInstanceState);

		// Restore the previously serialized activated item position.
		if (savedInstanceState != null && savedInstanceState.containsKey(STATE_ACTIVATED_POSITION)) {
			setActivatedPosition(savedInstanceState.getInt(STATE_ACTIVATED_POSITION));
		}
	}

	@Override
	public void onAttach(Activity activity) {
		super.onAttach(activity);

		// Activities containing this fragment must implement its callbacks.
		if (!(activity instanceof Callbacks)) {
			throw new IllegalStateException("Activity must implement fragment's callbacks.");
		}

		mCallbacks = (Callbacks) activity;
	}

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

		// Reset the active callbacks interface to the dummy implementation.
		mCallbacks = sDummyCallbacks;
	}



	@Override
	public void onSaveInstanceState(Bundle outState) {
		super.onSaveInstanceState(outState);

		outState.putSerializable(ARG_WORKOUT, mWorkout);

		if (mActivatedPosition != ListView.INVALID_POSITION) {
			// Serialize and persist the activated item position.
			outState.putInt(STATE_ACTIVATED_POSITION, mActivatedPosition);
		}
	}


	/**
	 * Turns on activate-on-click mode. When this mode is on, list items will be
	 * given the 'activated' state when touched.
	 */
	public void setActivateOnItemClick(boolean activateOnItemClick) {
		// When setting CHOICE_MODE_SINGLE, ListView will automatically
		// give items the 'activated' state when touched.
		getListView().setChoiceMode(activateOnItemClick ? ListView.CHOICE_MODE_SINGLE : ListView.CHOICE_MODE_NONE);
	}

	private void setActivatedPosition(int position) {
		if (position == ListView.INVALID_POSITION) {
			getListView().setItemChecked(mActivatedPosition, false);
		} else {
			getListView().setItemChecked(position, true);
		}

		mActivatedPosition = position;
	}

}