Android Open Source - netmbuddy Y T Player Video List Manager

From Project

Back to project page netmbuddy.
License

The source code is released under:
------- Default ------- Copyright (C) 2012, 2013, 2014 Younghyung Cho. <yhcting77@gmail.com> All rights reserved. This file is part of NetMBuddy This program is licensed under the FreeBSD license R...
If you think the Android project netmbuddy listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.
Java Source Code

/******************************************************************************
 * Copyright (C) 2012, 2013, 2014/*  w w  w .  j a  v a2s . co m*/
 * Younghyung Cho. <yhcting77@gmail.com>
 * All rights reserved.
 *
 * This file is part of NetMBuddy
 *
 * This program is licensed under the FreeBSD license
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * The views and conclusions contained in the software and documentation
 * are those of the authors and should not be interpreted as representing
 * official policies, either expressed or implied, of the FreeBSD Project.
 *****************************************************************************/

package free.yhc.netmbuddy.model;

import static free.yhc.netmbuddy.utils.Utils.eAssert;

import java.util.ArrayList;

import free.yhc.netmbuddy.utils.Utils;

class YTPlayerVideoListManager {
    private static final boolean DBG = false;
    private static final Utils.Logger P = new Utils.Logger(YTPlayerVideoListManager.class);

    // NOTE!
    // mVs is accessed on by UIThread.
    // So, synchronization is not required.
    private final Object        mVsLock = new Object();
    private YTPlayer.Video[]    mVs = null; // video array
    private int                 mVi = -1;   // video index
    private OnListChangedListener   mListener = null;

    interface OnListChangedListener {
        void onChanged(YTPlayerVideoListManager vm);
    }

    YTPlayerVideoListManager(OnListChangedListener listener) {
        mListener = listener;
    }

    void
    setOnListChangedListener(OnListChangedListener listener) {
        eAssert(Utils.isUiThread());
        mListener = listener;
    }

    void
    clearOnListChangedListener() {
        eAssert(Utils.isUiThread());
        mListener = null;
    }

    void
    notifyToListChangedListener() {
        if (null != mListener)
            mListener.onChanged(this);
    }

    int
    size() {
        eAssert(Utils.isUiThread());
        return mVs.length;
    }

    boolean
    hasActiveVideo() {
        eAssert(Utils.isUiThread());
        return null != getActiveVideo();
    }

    boolean
    hasNextVideo() {
        eAssert(Utils.isUiThread());
        return hasActiveVideo()
               && mVi < (mVs.length - 1);
    }

    boolean
    hasPrevVideo() {
        eAssert(Utils.isUiThread());
        return hasActiveVideo() && 0 < mVi;
    }

    boolean
    isValidVideoIndex(int i) {
        return 0 <= i && i < mVs.length;
    }

    void
    reset() {
        eAssert(Utils.isUiThread());
        mVs = null;
        mVi = -1;
        notifyToListChangedListener();
    }

    void
    setVideoList(YTPlayer.Video[] vs) {
        eAssert(Utils.isUiThread());
        mVs = vs;
        if (null == mVs || 0 >= mVs.length)
            reset();
        else if(mVs.length > 0)
            mVi = 0;
        notifyToListChangedListener();
    }

    YTPlayer.Video[]
    getVideoList() {
        eAssert(Utils.isUiThread());
        return mVs;
    }

    void
    appendVideo(YTPlayer.Video vids[]) {
        eAssert(Utils.isUiThread());
        YTPlayer.Video[] newvs = new YTPlayer.Video[mVs.length + vids.length];
        System.arraycopy(mVs, 0, newvs, 0, mVs.length);
        System.arraycopy(vids, 0, newvs, mVs.length, vids.length);
        mVs = newvs;
        notifyToListChangedListener();
    }

    /**
     *
     * @param index
     * @return
     *   false if -1 == mVi after removing. Otherwise true.
     */
    void
    removeVideo(String ytvid) {
        eAssert(Utils.isUiThread());
        if (null == mVs)
            return;

        ArrayList<YTPlayer.Video> al = new ArrayList<YTPlayer.Video>(mVs.length);
        int adjust = 0;
        for (int i = 0; i < mVs.length; i++) {
            if (!mVs[i].ytvid.equals(ytvid))
                al.add(mVs[i]);
            else if (i <= mVi)
                adjust++;
        }
        mVs = al.toArray(new YTPlayer.Video[0]);
        mVi = mVi - adjust;
        eAssert(mVi >= 0 || mVi <= mVs.length);
        notifyToListChangedListener();
    }

    int
    getActiveVideoIndex() {
        return mVi;
    }

    /**
     * find video index that is NOT 'ytvid'
     * @param ytvid
     * @return
     *   -1 if fail to find.
     */
    int
    findVideoExcept(int from, String ytvid) {
        eAssert(from >= 0 && from <= mVs.length);
        for (int i = from; i < mVs.length; i++) {
            if (!ytvid.equals(mVs[i].ytvid))
                return i;
        }
        return -1;
    }

    YTPlayer.Video
    getActiveVideo() {
        eAssert(Utils.isUiThread());
        if (null != mVs && 0 <= mVi && mVi < mVs.length)
            return mVs[mVi];
        return null;
    }

    YTPlayer.Video
    getNextVideo() {
        eAssert(Utils.isUiThread());
        if (!hasNextVideo())
            return null;
        return mVs[mVi + 1];
    }

    boolean
    moveTo(int index) {
        eAssert(Utils.isUiThread());
        if (index < 0 || index >= mVs.length)
            return false;
        mVi = index;
        return true;
    }

    boolean
    moveToFist() {
        eAssert(Utils.isUiThread());
        return moveTo(0);
    }

    boolean
    moveToNext() {
        eAssert(Utils.isUiThread());
        return moveTo(mVi + 1);
    }

    boolean
    moveToPrev() {
        eAssert(Utils.isUiThread());
        return moveTo(mVi - 1);
    }
}
Java Source Code List
