/*
* Copyright (C) 2008 Esmertec AG.
* Copyright (C) 2008 The Android Open Source Project
*
* 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.android.mms.ui;
import com.android.mms.R;
import com.android.mms.layout.LayoutManager;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.media.MediaPlayer;
import android.net.Uri;
import android.text.method.HideReturnsTransformationMethod;
import android.util.AttributeSet;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.AbsoluteLayout;
import android.widget.FrameLayout;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.MediaController;
import android.widget.ScrollView;
import android.widget.TextView;
import android.widget.VideoView;
import java.io.IOException;
import java.util.Comparator;
import java.util.Map;
import java.util.TreeMap;
/**
* A basic view to show the contents of a slide.
*/
public class SlideView extends AbsoluteLayout implements
AdaptableSlideViewInterface {
private static final String TAG = "SlideView";
private static final boolean DEBUG = false;
private static final boolean LOCAL_LOGV = false;
// FIXME: Need getHeight from mAudioInfoView instead of constant AUDIO_INFO_HEIGHT.
private static final int AUDIO_INFO_HEIGHT = 82;
private View mAudioInfoView;
private ImageView mImageView;
private VideoView mVideoView;
private ScrollView mScrollText;
private TextView mTextView;
private OnSizeChangedListener mSizeChangedListener;
private MediaPlayer mAudioPlayer;
private boolean mIsPrepared;
private boolean mStartWhenPrepared;
private int mSeekWhenPrepared;
private boolean mStopWhenPrepared;
private ScrollView mScrollViewPort;
private LinearLayout mViewPort;
// Indicates whether the view is in MMS conformance mode.
private boolean mConformanceMode;
private MediaController mMediaController;
MediaPlayer.OnPreparedListener mPreparedListener = new MediaPlayer.OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
mIsPrepared = true;
if (mSeekWhenPrepared > 0) {
mAudioPlayer.seekTo(mSeekWhenPrepared);
mSeekWhenPrepared = 0;
}
if (mStartWhenPrepared) {
mAudioPlayer.start();
mStartWhenPrepared = false;
displayAudioInfo();
}
if (mStopWhenPrepared) {
mAudioPlayer.stop();
mAudioPlayer.release();
mAudioPlayer = null;
mStopWhenPrepared = false;
hideAudioInfo();
}
}
};
public SlideView(Context context) {
super(context);
}
public SlideView(Context context, AttributeSet attrs) {
super(context, attrs);
}
public void setImage(String name, Bitmap bitmap) {
if (mImageView == null) {
mImageView = new ImageView(mContext);
mImageView.setPadding(0, 5, 0, 5);
addView(mImageView, new LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 0, 0));
if (DEBUG) {
mImageView.setBackgroundColor(0xFFFF0000);
}
}
try {
if (null == bitmap) {
bitmap = BitmapFactory.decodeResource(getResources(),
R.drawable.ic_missing_thumbnail_picture);
}
mImageView.setVisibility(View.VISIBLE);
mImageView.setImageBitmap(bitmap);
} catch (java.lang.OutOfMemoryError e) {
Log.e(TAG, "setImage: out of memory: ", e);
}
}
public void setImageRegion(int left, int top, int width, int height) {
// Ignore any requirement of layout change once we are in MMS conformance mode.
if (mImageView != null && !mConformanceMode) {
mImageView.setLayoutParams(new LayoutParams(width, height, left, top));
}
}
public void setImageRegionFit(String fit) {
// TODO Auto-generated method stub
}
public void setVideo(String name, Uri video) {
if (mVideoView == null) {
mVideoView = new VideoView(mContext);
addView(mVideoView, new LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 0, 0));
if (DEBUG) {
mVideoView.setBackgroundColor(0xFFFF0000);
}
}
if (LOCAL_LOGV) {
Log.v(TAG, "Changing video source to " + video);
}
mVideoView.setVisibility(View.VISIBLE);
mVideoView.setVideoURI(video);
}
public void setMediaController(MediaController mediaController) {
mMediaController = mediaController;
}
private void initAudioInfoView(String name) {
if (null == mAudioInfoView) {
LayoutInflater factory = LayoutInflater.from(getContext());
mAudioInfoView = factory.inflate(R.layout.playing_audio_info, null);
int height = mAudioInfoView.getHeight();
if (mConformanceMode) {
mViewPort.addView(mAudioInfoView, new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT,
AUDIO_INFO_HEIGHT));
} else {
addView(mAudioInfoView, new LayoutParams(
LayoutParams.MATCH_PARENT, AUDIO_INFO_HEIGHT,
0, getHeight() - AUDIO_INFO_HEIGHT));
if (DEBUG) {
mAudioInfoView.setBackgroundColor(0xFFFF0000);
}
}
}
TextView audioName = (TextView) mAudioInfoView.findViewById(R.id.name);
audioName.setText(name);
mAudioInfoView.setVisibility(View.GONE);
}
private void displayAudioInfo() {
if (null != mAudioInfoView) {
mAudioInfoView.setVisibility(View.VISIBLE);
}
}
private void hideAudioInfo() {
if (null != mAudioInfoView) {
mAudioInfoView.setVisibility(View.GONE);
}
}
public void setAudio(Uri audio, String name, Map<String, ?> extras) {
if (audio == null) {
throw new IllegalArgumentException("Audio URI may not be null.");
}
if (LOCAL_LOGV) {
Log.v(TAG, "Changing audio source to " + audio);
}
if (mAudioPlayer != null) {
mAudioPlayer.reset();
mAudioPlayer.release();
mAudioPlayer = null;
}
// Reset state variables
mIsPrepared = false;
mStartWhenPrepared = false;
mSeekWhenPrepared = 0;
mStopWhenPrepared = false;
try {
mAudioPlayer = new MediaPlayer();
mAudioPlayer.setOnPreparedListener(mPreparedListener);
mAudioPlayer.setDataSource(mContext, audio);
mAudioPlayer.prepareAsync();
} catch (IOException e) {
Log.e(TAG, "Unexpected IOException.", e);
mAudioPlayer.release();
mAudioPlayer = null;
}
initAudioInfoView(name);
}
public void setText(String name, String text) {
if (!mConformanceMode) {
if (null == mScrollText) {
mScrollText = new ScrollView(mContext);
mScrollText.setScrollBarStyle(SCROLLBARS_OUTSIDE_INSET);
addView(mScrollText, new LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, 0, 0));
if (DEBUG) {
mScrollText.setBackgroundColor(0xFF00FF00);
}
}
if (null == mTextView) {
mTextView = new TextView(mContext);
mTextView.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
mScrollText.addView(mTextView);
}
mScrollText.requestFocus();
}
mTextView.setVisibility(View.VISIBLE);
mTextView.setText(text);
}
public void setTextRegion(int left, int top, int width, int height) {
// Ignore any requirement of layout change once we are in MMS conformance mode.
if (mScrollText != null && !mConformanceMode) {
mScrollText.setLayoutParams(new LayoutParams(width, height, left, top));
}
}
public void setVideoRegion(int left, int top, int width, int height) {
if (mVideoView != null && !mConformanceMode) {
mVideoView.setLayoutParams(new LayoutParams(width, height, left, top));
}
}
public void setImageVisibility(boolean visible) {
if (mImageView != null) {
if (mConformanceMode) {
mImageView.setVisibility(visible ? View.VISIBLE : View.GONE);
} else {
mImageView.setVisibility(visible ? View.VISIBLE : View.INVISIBLE);
}
}
}
public void setTextVisibility(boolean visible) {
if (mConformanceMode) {
if (mTextView != null) {
mTextView.setVisibility(visible ? View.VISIBLE : View.GONE);
}
} else if (mScrollText != null) {
mScrollText.setVisibility(visible ? View.VISIBLE : View.INVISIBLE);
}
}
public void setVideoVisibility(boolean visible) {
if (mVideoView != null) {
if (mConformanceMode) {
mVideoView.setVisibility(visible ? View.VISIBLE : View.GONE);
} else {
mVideoView.setVisibility(visible ? View.VISIBLE : View.INVISIBLE);
}
}
}
public void startAudio() {
if ((mAudioPlayer != null) && mIsPrepared) {
mAudioPlayer.start();
mStartWhenPrepared = false;
displayAudioInfo();
} else {
mStartWhenPrepared = true;
}
}
public void stopAudio() {
if ((mAudioPlayer != null) && mIsPrepared) {
mAudioPlayer.stop();
mAudioPlayer.release();
mAudioPlayer = null;
hideAudioInfo();
} else {
mStopWhenPrepared = true;
}
}
public void pauseAudio() {
if ((mAudioPlayer != null) && mIsPrepared) {
if (mAudioPlayer.isPlaying()) {
mAudioPlayer.pause();
}
}
mStartWhenPrepared = false;
}
public void seekAudio(int seekTo) {
if ((mAudioPlayer != null) && mIsPrepared) {
mAudioPlayer.seekTo(seekTo);
} else {
mSeekWhenPrepared = seekTo;
}
}
public void startVideo() {
if (mVideoView != null) {
if (LOCAL_LOGV) {
Log.v(TAG, "Starting video playback.");
}
mVideoView.start();
}
}
public void stopVideo() {
if ((mVideoView != null)) {
if (LOCAL_LOGV) {
Log.v(TAG, "Stopping video playback.");
}
mVideoView.stopPlayback();
}
}
public void pauseVideo() {
if (mVideoView != null) {
if (LOCAL_LOGV) {
Log.v(TAG, "Pausing video playback.");
}
mVideoView.pause();
}
}
public void seekVideo(int seekTo) {
if (mVideoView != null) {
if (seekTo > 0) {
if (LOCAL_LOGV) {
Log.v(TAG, "Seeking video playback to " + seekTo);
}
mVideoView.seekTo(seekTo);
}
}
}
public void reset() {
if (null != mScrollText) {
mScrollText.setVisibility(View.GONE);
}
if (null != mImageView) {
mImageView.setVisibility(View.GONE);
}
if (null != mAudioPlayer) {
stopAudio();
}
if (null != mVideoView) {
stopVideo();
mVideoView.setVisibility(View.GONE);
}
if (null != mTextView) {
mTextView.setVisibility(View.GONE);
}
if (mScrollViewPort != null) {
mScrollViewPort.scrollTo(0, 0);
mScrollViewPort.setLayoutParams(
new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT, 0, 0));
}
}
public void setVisibility(boolean visible) {
// TODO Auto-generated method stub
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
if (mSizeChangedListener != null) {
if (LOCAL_LOGV) {
Log.v(TAG, "new size=" + w + "x" + h);
}
mSizeChangedListener.onSizeChanged(w, h - AUDIO_INFO_HEIGHT);
}
}
public void setOnSizeChangedListener(OnSizeChangedListener l) {
mSizeChangedListener = l;
}
private class Position {
public Position(int left, int top) {
mTop = top;
mLeft = left;
}
public int mTop;
public int mLeft;
}
/**
* Makes the SlideView working on MMSConformance Mode. The view will be
* re-layout to the linear view.
* <p>
* This is Chinese requirement about mms conformance.
* The most popular Mms service in China is newspaper which is MMS conformance,
* normally it mixes the image and text and has a number of slides. The
* AbsoluteLayout doesn't have good user experience for this kind of message,
* for example,
*
* 1. AbsoluteLayout exactly follows the smil's layout which is not optimized,
* and actually, no other MMS applications follow the smil's layout, they adjust
* the layout according their screen size. MMS conformance doc also allows the
* implementation to adjust the layout.
*
* 2. The TextView is fixed in the small area of screen, and other part of screen
* is empty once there is no image in the current slide.
*
* 3. The TextView is scrollable in a small area of screen and the font size is
* small which make the user experience bad.
*
* The better UI for the MMS conformance message could be putting the image/video
* and text in a linear layout view and making them scrollable together.
*
* Another reason for only applying the LinearLayout to the MMS conformance message
* is that the AbsoluteLayout has ability to play image and video in a same screen.
* which shouldn't be broken.
*/
public void enableMMSConformanceMode(int textLeft, int textTop,
int imageLeft, int imageTop) {
mConformanceMode = true;
if (mScrollViewPort == null) {
mScrollViewPort = new ScrollView(mContext) {
private int mBottomY;
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
super.onLayout(changed, left, top, right, bottom);
if (getChildCount() > 0) {
int childHeight = getChildAt(0).getHeight();
int height = getHeight();
mBottomY = height < childHeight ? childHeight - height : 0;
}
}
@Override
protected void onScrollChanged(int l, int t, int oldl, int oldt) {
// Shows MediaController when the view is scrolled to the top/bottom of itself.
if (t == 0 || t >= mBottomY){
if (mMediaController != null) {
mMediaController.show();
}
}
}
};
mScrollViewPort.setScrollBarStyle(SCROLLBARS_OUTSIDE_INSET);
mViewPort = new LinearLayout(mContext);
mViewPort.setOrientation(LinearLayout.VERTICAL);
mViewPort.setGravity(Gravity.CENTER);
mViewPort.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
if (mMediaController != null) {
mMediaController.show();
}
}
});
mScrollViewPort.addView(mViewPort, new FrameLayout.LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.WRAP_CONTENT));
addView(mScrollViewPort);
}
// Layout views to fit the LinearLayout from left to right, then top to
// bottom.
TreeMap<Position, View> viewsByPosition = new TreeMap<Position, View>(new Comparator<Position>() {
public int compare(Position p1, Position p2) {
int l1 = p1.mLeft;
int t1 = p1.mTop;
int l2 = p2.mLeft;
int t2 = p2.mTop;
int res = t1 - t2;
if (res == 0) {
res = l1 - l2;
}
if (res == 0) {
// A view will be lost if return 0.
return -1;
}
return res;
}
});
if (textLeft >=0 && textTop >=0) {
mTextView = new TextView(mContext);
mTextView.setTransformationMethod(HideReturnsTransformationMethod.getInstance());
mTextView.setTextSize(18);
mTextView.setPadding(5, 5, 5, 5);
viewsByPosition.put(new Position(textLeft, textTop), mTextView);
}
if (imageLeft >=0 && imageTop >=0) {
mImageView = new ImageView(mContext);
mImageView.setPadding(0, 5, 0, 5);
viewsByPosition.put(new Position(imageLeft, imageTop), mImageView);
// According MMS Conformance Document, the image and video should use the same
// region. So, put the VideoView below the ImageView.
mVideoView = new VideoView(mContext);
viewsByPosition.put(new Position(imageLeft + 1, imageTop), mVideoView);
}
for (View view : viewsByPosition.values()) {
if (view instanceof VideoView) {
mViewPort.addView(view, new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT,
LayoutManager.getInstance().getLayoutParameters().getHeight()));
} else {
mViewPort.addView(view, new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT,
LayoutParams.WRAP_CONTENT));
}
view.setVisibility(View.GONE);
}
}
}