/*

   EditTextPreference to store/load integer values

   Copyright 2013 Thincast Technologies GmbH, Author: Martin Fleisz

   This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.

   If a copy of the MPL was not distributed with this file, You can obtain one at

   http://mozilla.org/MPL/2.0/.

*/

package com.freerdp.freerdpcore.utils;

import android.content.Context;

import android.content.res.TypedArray;

import android.preference.EditTextPreference;

import android.util.AttributeSet;

import com.freerdp.freerdpcore.R;

public class IntEditTextPreference extends EditTextPreference

{

	private int bounds_min, bounds_max, bounds_default;

	public IntEditTextPreference(Context context)

	{

		super(context);

		init(context, null);

	}

	public IntEditTextPreference(Context context, AttributeSet attrs)

	{

		super(context, attrs);

		init(context, attrs);

	}

	public IntEditTextPreference(Context context, AttributeSet attrs, int defStyle)

	{

		super(context, attrs, defStyle);

		init(context, attrs);

	}

	private void init(Context context, AttributeSet attrs)

	{

		if (attrs != null)

		{

			TypedArray array =

			    context.obtainStyledAttributes(attrs, R.styleable.IntEditTextPreference, 0, 0);

			bounds_min =

			    array.getInt(R.styleable.IntEditTextPreference_bounds_min, Integer.MIN_VALUE);

			bounds_max =

			    array.getInt(R.styleable.IntEditTextPreference_bounds_max, Integer.MAX_VALUE);

			bounds_default = array.getInt(R.styleable.IntEditTextPreference_bounds_default, 0);

			array.recycle();

		}

		else

		{

			bounds_min = Integer.MIN_VALUE;

			bounds_max = Integer.MAX_VALUE;

			bounds_default = 0;

		}

	}

	public void setBounds(int min, int max, int defaultValue)

	{

		bounds_min = min;

		bounds_max = max;

		bounds_default = defaultValue;

	}

	@Override protected String getPersistedString(String defaultReturnValue)

	{

		int value = getPersistedInt(-1);

		if (value > bounds_max || value < bounds_min)

			value = bounds_default;

		return String.valueOf(value);

	}

	@Override protected boolean persistString(String value)

	{

		return persistInt(Integer.valueOf(value));

	}

	@Override protected void onDialogClosed(boolean positiveResult)

	{

		if (positiveResult)

		{

			// prevent exception when an empty value is persisted

			if (getEditText().getText().length() == 0)

				getEditText().setText("0");

			// check bounds

			int value = Integer.valueOf(getEditText().getText().toString());

			if (value > bounds_max || value < bounds_min)

				value = bounds_default;

			getEditText().setText(String.valueOf(value));

		}

		super.onDialogClosed(positiveResult);

	}

}