src/org/sflphone/fragments/AudioManagementFragment.java

/*
 *  Copyright (C) 2004-2013 Savoir-Faire Linux Inc.
 *
 *  Author: Alexandre Savard <alexandre.savard@savoirfairelinux.com>
 *          Alexandre Lision <alexandre.lision@savoirfairelinux.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, write to the Free Software
 *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *  Additional permission under GNU GPL version 3 section 7:
 *
 *  If you modify this program, or any covered work, by linking or
 *  combining it with the OpenSSL project's OpenSSL library (or a
 *  modified version of that library), containing parts covered by the
 *  terms of the OpenSSL or SSLeay licenses, Savoir-Faire Linux Inc.
 *  grants you additional permission to convey the resulting work.
 *  Corresponding Source for a non-source form of such a combination
 *  shall include the source code for the parts of OpenSSL used as well
 *  as that of the covered work.
 */

package org.sflphone.fragments;

import java.util.ArrayList;

import org.sflphone.R;
import org.sflphone.model.Codec;
import org.sflphone.service.ISipService;
import org.sflphone.views.AudioCodecListPreference;

import android.app.Activity;
import android.content.Context;
import android.content.res.TypedArray;
import android.os.Bundle;
import android.os.RemoteException;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.PreferenceFragment;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;

public class AudioManagementFragment extends PreferenceFragment {
    static final String TAG = "AudioManagementFragment";

    protected Callbacks mCallbacks = sDummyCallbacks;
    ArrayList<Codec> codecs;
    private static Callbacks sDummyCallbacks = new Callbacks() {

        @Override
        public ISipService getService() {
            return null;
        }

        @Override
        public String getAccountID() {
            return null;
        }

    };

    public interface Callbacks {

        public ISipService getService();

        public String getAccountID();

    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        if (!(activity instanceof Callbacks)) {
            throw new IllegalStateException("Activity must implement fragment's callbacks.");
        }

        mCallbacks = (Callbacks) activity;
        try {
            codecs = (ArrayList<Codec>) mCallbacks.getService().getAudioCodecList(mCallbacks.getAccountID());
            mCallbacks.getService().getRingtoneList();
        } catch (RemoteException e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onDetach() {
        super.onDetach();
        mCallbacks = sDummyCallbacks;
    }

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

        addPreferencesFromResource(R.xml.audio_prefs);
        final AudioCodecListPreference codecPref = ((AudioCodecListPreference)getPreferenceManager().findPreference("Audio.codec"));
        codecPref.setList(codecs);
        codecPref.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
            
            @Override
            public boolean onPreferenceChange(Preference preference, Object newValue) {
                try {
                    mCallbacks.getService().setActiveCodecList(codecPref.getActiveCodecList(), mCallbacks.getAccountID());
                } catch (RemoteException e) {
                    e.printStackTrace();
                }
                return false;
            }
        });
        
        
    }

    Preference.OnPreferenceChangeListener changePreferenceListener = new Preference.OnPreferenceChangeListener() {
        public boolean onPreferenceChange(Preference preference, Object newValue) {
            preference.setSummary((CharSequence) newValue);
            return true;
        }
    };

    // public PreferenceScreen getAudioPreferenceScreen()
    // {
    // Activity currentContext = getActivity();
    //
    // PreferenceScreen root = getPreferenceManager().createPreferenceScreen(currentContext);
    //
    // PreferenceCategory audioPrefCat = new PreferenceCategory(currentContext);
    // audioPrefCat.setTitle(R.string.audio_preferences);
    // root.addPreference(audioPrefCat);
    //
    // // Codec List
    // ListPreference codecListPref = new ListPreference(currentContext);
    // codecListPref.setEntries(R.array.audio_codec_list);
    // codecListPref.setEntryValues(R.array.audio_codec_list_value);
    // codecListPref.setDialogTitle(R.string.dialogtitle_audio_codec_list);
    // codecListPref.setPersistent(false);
    // codecListPref.setTitle(R.string.title_audio_codec_list);
    // codecListPref.setSummary("PCMU");
    // codecListPref.setOnPreferenceChangeListener(changePreferenceListener);
    // audioPrefCat.addPreference(codecListPref);
    //
    // // Ringtone
    // EditTextPreference audioRingtonePref = new EditTextPreference(currentContext);
    // audioRingtonePref.setDialogTitle(R.string.dialogtitle_audio_ringtone_field);
    // audioRingtonePref.setPersistent(false);
    // audioRingtonePref.setTitle(R.string.title_audio_ringtone_field);
    // audioRingtonePref.setSummary("path/to/ringtone");
    // audioRingtonePref.setOnPreferenceChangeListener(changePreferenceListener);
    // audioPrefCat.addPreference(audioRingtonePref);
    //
    // // Speaker volume seekbar
    // SeekBarPreference speakerSeekBarPref = new SeekBarPreference(currentContext);
    // speakerSeekBarPref.setPersistent(false);
    // speakerSeekBarPref.setTitle("Speaker Volume");
    // speakerSeekBarPref.setProgress(50);
    // speakerSeekBarPref.setSummary(speakerSeekBarPref.getProgress());
    // audioPrefCat.addPreference(speakerSeekBarPref);
    //
    // // Capture volume seekbar
    // SeekBarPreference captureSeekBarPref = new SeekBarPreference(currentContext);
    // captureSeekBarPref.setPersistent(false);
    // captureSeekBarPref.setTitle("Capture Volume");
    // captureSeekBarPref.setProgress(50);
    // captureSeekBarPref.setSummary(captureSeekBarPref.getProgress());
    // audioPrefCat.addPreference(captureSeekBarPref);
    //
    // // Ringtone volume seekbar
    // SeekBarPreference ringtoneSeekBarPref = new SeekBarPreference(currentContext);
    // ringtoneSeekBarPref.setPersistent(false);
    // ringtoneSeekBarPref.setTitle("Ringtone Volume");
    // ringtoneSeekBarPref.setProgress(50);
    // ringtoneSeekBarPref.setSummary(ringtoneSeekBarPref.getProgress());
    // audioPrefCat.addPreference(ringtoneSeekBarPref);
    //
    // return root;
    // }

    

    public class SeekBarPreference extends Preference implements OnSeekBarChangeListener {
        private SeekBar seekbar;
        private int progress;
        private int max = 100;
        private TextView summary;
        private boolean discard;

        public SeekBarPreference(Context context) {
            super(context);
        }

        public SeekBarPreference(Context context, AttributeSet attrs) {
            super(context, attrs);
        }

        public SeekBarPreference(Context context, AttributeSet attrs, int defStyle) {
            super(context, attrs, defStyle);
        }

        protected View onCreateView(ViewGroup p) {
            final Context ctx = getContext();

            LinearLayout layout = new LinearLayout(ctx);
            layout.setId(android.R.id.widget_frame);
            layout.setOrientation(LinearLayout.VERTICAL);
            layout.setPadding(65, 10, 15, 10);

            TextView title = new TextView(ctx);
            int textColor = title.getCurrentTextColor();
            title.setId(android.R.id.title);
            title.setSingleLine();
            title.setTextAppearance(ctx, android.R.style.TextAppearance_Medium);
            title.setTextColor(textColor);
            layout.addView(title);

            summary = new TextView(ctx);
            summary.setId(android.R.id.summary);
            summary.setSingleLine();
            summary.setTextAppearance(ctx, android.R.style.TextAppearance_Small);
            summary.setTextColor(textColor);
            layout.addView(summary);

            seekbar = new SeekBar(ctx);
            seekbar.setId(android.R.id.progress);
            seekbar.setMax(max);
            seekbar.setOnSeekBarChangeListener(this);
            layout.addView(seekbar);

            return layout;
        }

        @Override
        protected void onBindView(View view) {
            super.onBindView(view);

            if (seekbar != null)
                seekbar.setProgress(progress);
        }

        public void setProgress(int pcnt) {
            if (progress != pcnt) {
                persistInt(progress = pcnt);

                notifyDependencyChange(shouldDisableDependents());
                notifyChanged();
            }
        }

        public int getProgress() {
            return progress;
        }

        public void setMax(int max) {
            this.max = max;
            if (seekbar != null)
                seekbar.setMax(max);
        }

        @Override
        protected Object onGetDefaultValue(TypedArray a, int index) {
            return a.getInt(index, progress);
        }

        @Override
        protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
            setProgress(restoreValue ? getPersistedInt(progress) : (Integer) defaultValue);
        }

        @Override
        public boolean shouldDisableDependents() {
            return progress == 0 || super.shouldDisableDependents();
        }

        public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
            discard = !callChangeListener(progress);
            summary.setText(progress);
        }

        public void onStartTrackingTouch(SeekBar seekBar) {
            discard = false;
        }

        public void onStopTrackingTouch(SeekBar seekBar) {
            if (discard)
                seekBar.setProgress(progress);
            else {
                setProgress(seekBar.getProgress());

                // OnPreferenceChangeListener listener = getOnPreferenceChangeListener();
                // if (listener instanceof AbstractSeekBarListener)
                // // setSummary( ((AbstractSeekBarListener)listener).toSummary( seekBar.getProgress() ) );
            }
        }
    }
}