nextcloud-android/src/com/owncloud/android/media/MediaControlView.java
2013-10-29 14:10:42 +01:00

473 lines
15 KiB
Java

/* ownCloud Android client application
*
* Copyright (C) 2012-2013 ownCloud Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2,
* as published by the Free Software Foundation.
*
* 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/>.
*
*/
package com.owncloud.android.media;
import android.content.Context;
import android.media.MediaPlayer;
import android.os.Handler;
import android.os.Message;
import android.util.AttributeSet;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.accessibility.AccessibilityEvent;
import android.view.accessibility.AccessibilityNodeInfo;
import android.widget.FrameLayout;
import android.widget.ImageButton;
import android.widget.MediaController.MediaPlayerControl;
import android.widget.ProgressBar;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;
import java.util.Formatter;
import java.util.Locale;
import com.owncloud.android.R;
/**
* View containing controls for a {@link MediaPlayer}.
*
* Holds buttons "play / pause", "rewind", "fast forward"
* and a progress slider.
*
* It synchronizes itself with the state of the
* {@link MediaPlayer}.
*
* @author David A. Velasco
*/
public class MediaControlView extends FrameLayout /* implements OnLayoutChangeListener, OnTouchListener */ implements OnClickListener, OnSeekBarChangeListener {
private MediaPlayerControl mPlayer;
private Context mContext;
private View mRoot;
private ProgressBar mProgress;
private TextView mEndTime, mCurrentTime;
private boolean mDragging;
private static final int SHOW_PROGRESS = 1;
StringBuilder mFormatBuilder;
Formatter mFormatter;
private ImageButton mPauseButton;
private ImageButton mFfwdButton;
private ImageButton mRewButton;
public MediaControlView(Context context, AttributeSet attrs) {
super(context, attrs);
mContext = context;
FrameLayout.LayoutParams frameParams = new FrameLayout.LayoutParams(
ViewGroup.LayoutParams.MATCH_PARENT,
ViewGroup.LayoutParams.MATCH_PARENT
);
LayoutInflater inflate = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mRoot = inflate.inflate(R.layout.media_control, null);
initControllerView(mRoot);
addView(mRoot, frameParams);
setFocusable(true);
setFocusableInTouchMode(true);
setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
requestFocus();
}
@Override
public void onFinishInflate() {
/*
if (mRoot != null)
initControllerView(mRoot);
*/
}
/* TODO REMOVE
public MediaControlView(Context context, boolean useFastForward) {
super(context);
mContext = context;
mUseFastForward = useFastForward;
initFloatingWindowLayout();
//initFloatingWindow();
}
*/
/* TODO REMOVE
public MediaControlView(Context context) {
this(context, true);
}
*/
/* T
private void initFloatingWindow() {
mWindowManager = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE);
mWindow = PolicyManager.makeNewWindow(mContext);
mWindow.setWindowManager(mWindowManager, null, null);
mWindow.requestFeature(Window.FEATURE_NO_TITLE);
mDecor = mWindow.getDecorView();
mDecor.setOnTouchListener(mTouchListener);
mWindow.setContentView(this);
mWindow.setBackgroundDrawableResource(android.R.color.transparent);
// While the media controller is up, the volume control keys should
// affect the media stream type
mWindow.setVolumeControlStream(AudioManager.STREAM_MUSIC);
setFocusable(true);
setFocusableInTouchMode(true);
setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS);
requestFocus();
}
*/
/*
// Allocate and initialize the static parts of mDecorLayoutParams. Must
// also call updateFloatingWindowLayout() to fill in the dynamic parts
// (y and width) before mDecorLayoutParams can be used.
private void initFloatingWindowLayout() {
mDecorLayoutParams = new WindowManager.LayoutParams();
WindowManager.LayoutParams p = mDecorLayoutParams;
p.gravity = Gravity.TOP;
p.height = LayoutParams.WRAP_CONTENT;
p.x = 0;
p.format = PixelFormat.TRANSLUCENT;
p.type = WindowManager.LayoutParams.TYPE_APPLICATION_PANEL;
p.flags |= WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM
| WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL
| WindowManager.LayoutParams.FLAG_SPLIT_TOUCH;
p.token = null;
p.windowAnimations = 0; // android.R.style.DropDownAnimationDown;
}
*/
// Update the dynamic parts of mDecorLayoutParams
// Must be called with mAnchor != NULL.
/*
private void updateFloatingWindowLayout() {
int [] anchorPos = new int[2];
mAnchor.getLocationOnScreen(anchorPos);
WindowManager.LayoutParams p = mDecorLayoutParams;
p.width = mAnchor.getWidth();
p.y = anchorPos[1] + mAnchor.getHeight();
}
*/
/*
// This is called whenever mAnchor's layout bound changes
public void onLayoutChange(View v, int left, int top, int right,
int bottom, int oldLeft, int oldTop, int oldRight,
int oldBottom) {
//updateFloatingWindowLayout();
if (mShowing) {
mWindowManager.updateViewLayout(mDecor, mDecorLayoutParams);
}
}
*/
/*
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
if (mShowing) {
hide();
}
}
return false;
}
*/
public void setMediaPlayer(MediaPlayerControl player) {
mPlayer = player;
mHandler.sendEmptyMessage(SHOW_PROGRESS);
updatePausePlay();
}
private void initControllerView(View v) {
mPauseButton = (ImageButton) v.findViewById(R.id.playBtn);
if (mPauseButton != null) {
mPauseButton.requestFocus();
mPauseButton.setOnClickListener(this);
}
mFfwdButton = (ImageButton) v.findViewById(R.id.forwardBtn);
if (mFfwdButton != null) {
mFfwdButton.setOnClickListener(this);
}
mRewButton = (ImageButton) v.findViewById(R.id.rewindBtn);
if (mRewButton != null) {
mRewButton.setOnClickListener(this);
}
mProgress = (ProgressBar) v.findViewById(R.id.progressBar);
if (mProgress != null) {
if (mProgress instanceof SeekBar) {
SeekBar seeker = (SeekBar) mProgress;
seeker.setOnSeekBarChangeListener(this);
}
mProgress.setMax(1000);
}
mEndTime = (TextView) v.findViewById(R.id.totalTimeText);
mCurrentTime = (TextView) v.findViewById(R.id.currentTimeText);
mFormatBuilder = new StringBuilder();
mFormatter = new Formatter(mFormatBuilder, Locale.getDefault());
}
/**
* Disable pause or seek buttons if the stream cannot be paused or seeked.
* This requires the control interface to be a MediaPlayerControlExt
*/
private void disableUnsupportedButtons() {
try {
if (mPauseButton != null && !mPlayer.canPause()) {
mPauseButton.setEnabled(false);
}
if (mRewButton != null && !mPlayer.canSeekBackward()) {
mRewButton.setEnabled(false);
}
if (mFfwdButton != null && !mPlayer.canSeekForward()) {
mFfwdButton.setEnabled(false);
}
} catch (IncompatibleClassChangeError ex) {
// We were given an old version of the interface, that doesn't have
// the canPause/canSeekXYZ methods. This is OK, it just means we
// assume the media can be paused and seeked, and so we don't disable
// the buttons.
}
}
private Handler mHandler = new Handler() {
@Override
public void handleMessage(Message msg) {
int pos;
switch (msg.what) {
case SHOW_PROGRESS:
pos = setProgress();
if (!mDragging) {
msg = obtainMessage(SHOW_PROGRESS);
sendMessageDelayed(msg, 1000 - (pos % 1000));
}
break;
}
}
};
private String stringForTime(int timeMs) {
int totalSeconds = timeMs / 1000;
int seconds = totalSeconds % 60;
int minutes = (totalSeconds / 60) % 60;
int hours = totalSeconds / 3600;
mFormatBuilder.setLength(0);
if (hours > 0) {
return mFormatter.format("%d:%02d:%02d", hours, minutes, seconds).toString();
} else {
return mFormatter.format("%02d:%02d", minutes, seconds).toString();
}
}
private int setProgress() {
if (mPlayer == null || mDragging) {
return 0;
}
int position = mPlayer.getCurrentPosition();
int duration = mPlayer.getDuration();
if (mProgress != null) {
if (duration > 0) {
// use long to avoid overflow
long pos = 1000L * position / duration;
mProgress.setProgress( (int) pos);
}
int percent = mPlayer.getBufferPercentage();
mProgress.setSecondaryProgress(percent * 10);
}
if (mEndTime != null)
mEndTime.setText(stringForTime(duration));
if (mCurrentTime != null)
mCurrentTime.setText(stringForTime(position));
return position;
}
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
int keyCode = event.getKeyCode();
final boolean uniqueDown = event.getRepeatCount() == 0
&& event.getAction() == KeyEvent.ACTION_DOWN;
if (keyCode == KeyEvent.KEYCODE_HEADSETHOOK
|| keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE
|| keyCode == KeyEvent.KEYCODE_SPACE) {
if (uniqueDown) {
doPauseResume();
//show(sDefaultTimeout);
if (mPauseButton != null) {
mPauseButton.requestFocus();
}
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_PLAY) {
if (uniqueDown && !mPlayer.isPlaying()) {
mPlayer.start();
updatePausePlay();
//show(sDefaultTimeout);
}
return true;
} else if (keyCode == KeyEvent.KEYCODE_MEDIA_STOP
|| keyCode == KeyEvent.KEYCODE_MEDIA_PAUSE) {
if (uniqueDown && mPlayer.isPlaying()) {
mPlayer.pause();
updatePausePlay();
//show(sDefaultTimeout);
}
return true;
}
//show(sDefaultTimeout);
return super.dispatchKeyEvent(event);
}
public void updatePausePlay() {
if (mRoot == null || mPauseButton == null)
return;
if (mPlayer.isPlaying()) {
mPauseButton.setImageResource(android.R.drawable.ic_media_pause);
} else {
mPauseButton.setImageResource(android.R.drawable.ic_media_play);
}
}
private void doPauseResume() {
if (mPlayer.isPlaying()) {
mPlayer.pause();
} else {
mPlayer.start();
}
updatePausePlay();
}
@Override
public void setEnabled(boolean enabled) {
if (mPauseButton != null) {
mPauseButton.setEnabled(enabled);
}
if (mFfwdButton != null) {
mFfwdButton.setEnabled(enabled);
}
if (mRewButton != null) {
mRewButton.setEnabled(enabled);
}
if (mProgress != null) {
mProgress.setEnabled(enabled);
}
disableUnsupportedButtons();
super.setEnabled(enabled);
}
@Override
public void onClick(View v) {
int pos;
boolean playing = mPlayer.isPlaying();
switch (v.getId()) {
case R.id.playBtn:
doPauseResume();
break;
case R.id.rewindBtn:
pos = mPlayer.getCurrentPosition();
pos -= 5000;
mPlayer.seekTo(pos);
if (!playing) mPlayer.pause(); // necessary in some 2.3.x devices
setProgress();
break;
case R.id.forwardBtn:
pos = mPlayer.getCurrentPosition();
pos += 15000;
mPlayer.seekTo(pos);
if (!playing) mPlayer.pause(); // necessary in some 2.3.x devices
setProgress();
break;
}
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
if (!fromUser) {
// We're not interested in programmatically generated changes to
// the progress bar's position.
return;
}
long duration = mPlayer.getDuration();
long newposition = (duration * progress) / 1000L;
mPlayer.seekTo( (int) newposition);
if (mCurrentTime != null)
mCurrentTime.setText(stringForTime( (int) newposition));
}
/**
* Called in devices with touchpad when the user starts to adjust the
* position of the seekbar's thumb.
*
* Will be followed by several onProgressChanged notifications.
*/
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
mDragging = true; // monitors the duration of dragging
mHandler.removeMessages(SHOW_PROGRESS); // grants no more updates with media player progress while dragging
}
/**
* Called in devices with touchpad when the user finishes the
* adjusting of the seekbar.
*/
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
mDragging = false;
setProgress();
updatePausePlay();
mHandler.sendEmptyMessage(SHOW_PROGRESS); // grants future updates with media player progress
}
@Override
public void onInitializeAccessibilityEvent(AccessibilityEvent event) {
super.onInitializeAccessibilityEvent(event);
event.setClassName(MediaControlView.class.getName());
}
@Override
public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) {
super.onInitializeAccessibilityNodeInfo(info);
info.setClassName(MediaControlView.class.getName());
}
}