com.tobrun.android.notify.lib.NotifyManager.java Source code

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Here is the source code for com.tobrun.android.notify.lib.NotifyManager.java

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/*
 * Copyright (C) 2013 Tobrun Van Nuland
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.tobrun.android.notify.lib;

import java.util.concurrent.LinkedBlockingQueue;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;

import com.example.android_notifylib.R;
import com.tobrun.android.notify.lib.notify.Notify;
import com.tobrun.android.notify.lib.widget.NotifyFlipper;
import com.tobrun.android.notify.lib.widget.NotifyFlipper.State;

/**
 * 
 * @author tvn
 * 
 */
public class NotifyManager extends Fragment implements OnClickListener {

    private LinkedBlockingQueue<Notify> mQueue;
    private Notify mCurrentNotify;
    private NotifyFlipper mNotifyFlipper;
    private NotifyCallback mNotifyCallback;

    private Handler mHandler;
    private boolean mRunning = false;
    private boolean isRestarting = false;

    private final int mIndex = 0;
    private final State mState = State.OPENING;

    @Override
    public void onCreate(final Bundle savedInstanceState) {
        // will not be called during a configuration change
        super.onCreate(savedInstanceState);
        setRetainInstance(true);
        mQueue = new LinkedBlockingQueue<Notify>();
        mHandler = new Handler();
    }

    @Override
    public View onCreateView(final LayoutInflater inflater, final ViewGroup container,
            final Bundle savedInstanceState) {
        return mNotifyFlipper = (NotifyFlipper) inflater.inflate(R.layout.notify_flipper, container, false);
    }

    @Override
    public void onViewCreated(final View view, final Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        mNotifyFlipper.restoreState(view.getContext(), mCurrentNotify, mQueue.peek(), mState, mIndex);
    }

    @Override
    public void onAttach(final Activity activity) {
        super.onAttach(activity);
        if (activity instanceof NotifyCallback) {
            mNotifyCallback = (NotifyCallback) activity;
        } else {
            throw new IllegalStateException("Activity should implement the Notify Interface.");
        }
    }

    @Override
    public void onStart() {
        super.onStart();
        if (isActive()) {
            startRepeatingTask();
        }
    }

    @Override
    public void onStop() {
        super.onStop();
        if (isActive()) {
            stopRepeatingTask();
            isRestarting = true;
        }
    }

    public void add(final Notify notify) {

        if (mNotifyFlipper.isClosing()) {
            mNotifyFlipper.postDelayed(new Runnable() {
                @Override
                public void run() {
                    addNotify(notify);
                }
            }, 500);
        } else {
            addNotify(notify);
        }

    }

    private synchronized void addNotify(final Notify notify) {
        mQueue.add(notify);
        if (!mRunning) {
            startRepeatingTask();
        }
    }

    private synchronized Notify pollNotify() {
        return mQueue.poll();
    }

    private synchronized void startRepeatingTask() {
        mRunning = true;
        mStatusChecker.run();
    }

    private synchronized void stopRepeatingTask() {
        mHandler.removeCallbacks(mStatusChecker);
        mRunning = false;
    }

    private final boolean isActive() {
        return (mCurrentNotify != null) || (mQueue.size() > 0);
    }

    private final Runnable mStatusChecker = new Runnable() {
        @Override
        public void run() {
            if (!isRestarting) {
                mCurrentNotify = pollNotify();
            } else {
                isRestarting = false;
            }
            mNotifyFlipper.showNotify(getActivity(), mCurrentNotify);
            if (mCurrentNotify != null) {
                if (!mCurrentNotify.isSticky()) {
                    mNotifyFlipper.setOnClickListener(null);
                    mHandler.postDelayed(mStatusChecker, mCurrentNotify.getDuration());
                } else {
                    mNotifyFlipper.setOnClickListener(NotifyManager.this);
                }
            } else {
                stopRepeatingTask();
            }

        }
    };

    @Override
    public void onClick(final View v) {
        mHandler.post(mStatusChecker);
        mNotifyCallback.onNotifyDismiss(mCurrentNotify);
    }

}