Files
briar/briar-android/src/net/sf/briar/android/blogs/ReadBlogPostActivity.java

376 lines
12 KiB
Java

package net.sf.briar.android.blogs;
import static android.view.Gravity.CENTER;
import static android.view.Gravity.CENTER_VERTICAL;
import static android.view.View.INVISIBLE;
import static android.view.View.VISIBLE;
import static android.widget.LinearLayout.HORIZONTAL;
import static android.widget.LinearLayout.VERTICAL;
import static java.text.DateFormat.SHORT;
import static java.util.logging.Level.INFO;
import static java.util.logging.Level.WARNING;
import static net.sf.briar.android.widgets.CommonLayoutParams.MATCH_WRAP;
import static net.sf.briar.android.widgets.CommonLayoutParams.MATCH_WRAP_1;
import static net.sf.briar.android.widgets.CommonLayoutParams.WRAP_WRAP_1;
import static net.sf.briar.api.messaging.Rating.BAD;
import static net.sf.briar.api.messaging.Rating.GOOD;
import static net.sf.briar.api.messaging.Rating.UNRATED;
import java.io.UnsupportedEncodingException;
import java.util.concurrent.Executor;
import java.util.logging.Logger;
import net.sf.briar.R;
import net.sf.briar.android.BriarActivity;
import net.sf.briar.android.BriarService;
import net.sf.briar.android.BriarService.BriarServiceConnection;
import net.sf.briar.android.widgets.HorizontalBorder;
import net.sf.briar.android.widgets.HorizontalSpace;
import net.sf.briar.api.AuthorId;
import net.sf.briar.api.android.BundleEncrypter;
import net.sf.briar.api.android.DatabaseUiExecutor;
import net.sf.briar.api.db.DatabaseComponent;
import net.sf.briar.api.db.DbException;
import net.sf.briar.api.db.NoSuchMessageException;
import net.sf.briar.api.messaging.GroupId;
import net.sf.briar.api.messaging.MessageId;
import net.sf.briar.api.messaging.Rating;
import android.content.Intent;
import android.content.res.Resources;
import android.os.Bundle;
import android.text.format.DateUtils;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageButton;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ScrollView;
import android.widget.TextView;
import com.google.inject.Inject;
public class ReadBlogPostActivity extends BriarActivity
implements OnClickListener {
static final int RESULT_REPLY = RESULT_FIRST_USER;
static final int RESULT_PREV = RESULT_FIRST_USER + 1;
static final int RESULT_NEXT = RESULT_FIRST_USER + 2;
private static final Logger LOG =
Logger.getLogger(ReadBlogPostActivity.class.getName());
private final BriarServiceConnection serviceConnection =
new BriarServiceConnection();
@Inject private BundleEncrypter bundleEncrypter;
private GroupId groupId = null;
private Rating rating = UNRATED;
private boolean read;
private ImageView thumb = null;
private ImageButton goodButton = null, badButton = null, readButton = null;
private ImageButton prevButton = null, nextButton = null;
private ImageButton replyButton = null;
private TextView content = null;
// Fields that are accessed from background threads must be volatile
@Inject private volatile DatabaseComponent db;
@Inject @DatabaseUiExecutor private volatile Executor dbUiExecutor;
private volatile MessageId messageId = null;
private volatile AuthorId authorId = null;
@Override
public void onCreate(Bundle state) {
super.onCreate(null);
Intent i = getIntent();
byte[] b = i.getByteArrayExtra("net.sf.briar.GROUP_ID");
if(b == null) throw new IllegalStateException();
groupId = new GroupId(b);
String groupName = i.getStringExtra("net.sf.briar.GROUP_NAME");
if(groupName == null) throw new IllegalStateException();
setTitle(groupName);
b = i.getByteArrayExtra("net.sf.briar.MESSAGE_ID");
if(b == null) throw new IllegalStateException();
messageId = new MessageId(b);
String authorName = null;
b = i.getByteArrayExtra("net.sf.briar.AUTHOR_ID");
if(b != null) {
authorId = new AuthorId(b);
authorName = i.getStringExtra("net.sf.briar.AUTHOR_NAME");
if(authorName == null) throw new IllegalStateException();
String r = i.getStringExtra("net.sf.briar.RATING");
if(r != null) rating = Rating.valueOf(r);
}
String contentType = i.getStringExtra("net.sf.briar.CONTENT_TYPE");
if(contentType == null) throw new IllegalStateException();
long timestamp = i.getLongExtra("net.sf.briar.TIMESTAMP", -1);
if(timestamp == -1) throw new IllegalStateException();
if(state != null && bundleEncrypter.decrypt(state)) {
read = state.getBoolean("net.sf.briar.READ");
} else {
read = false;
setReadInDatabase(true);
}
LinearLayout layout = new LinearLayout(this);
layout.setLayoutParams(MATCH_WRAP);
layout.setOrientation(VERTICAL);
ScrollView scrollView = new ScrollView(this);
// Give me all the width and all the unused height
scrollView.setLayoutParams(MATCH_WRAP_1);
LinearLayout message = new LinearLayout(this);
message.setOrientation(VERTICAL);
Resources res = getResources();
message.setBackgroundColor(res.getColor(R.color.content_background));
LinearLayout header = new LinearLayout(this);
header.setLayoutParams(MATCH_WRAP);
header.setOrientation(HORIZONTAL);
header.setGravity(CENTER_VERTICAL);
thumb = new ImageView(this);
thumb.setPadding(0, 10, 10, 10);
if(rating == GOOD) thumb.setImageResource(R.drawable.rating_good);
else thumb.setImageResource(R.drawable.rating_bad);
if(rating == UNRATED) thumb.setVisibility(INVISIBLE);
header.addView(thumb);
TextView author = new TextView(this);
// Give me all the unused width
author.setLayoutParams(WRAP_WRAP_1);
author.setTextSize(18);
author.setMaxLines(1);
author.setPadding(10, 10, 10, 10);
if(authorName == null) {
author.setTextColor(res.getColor(R.color.anonymous_author));
author.setText(R.string.anonymous);
} else {
author.setText(authorName);
}
header.addView(author);
TextView date = new TextView(this);
date.setTextSize(14);
date.setPadding(0, 10, 10, 10);
long now = System.currentTimeMillis();
date.setText(DateUtils.formatSameDayTime(timestamp, now, SHORT, SHORT));
header.addView(date);
message.addView(header);
if(contentType.equals("text/plain")) {
// Load and display the message body
content = new TextView(this);
content.setPadding(10, 0, 10, 10);
message.addView(content);
loadMessageBody();
}
scrollView.addView(message);
layout.addView(scrollView);
layout.addView(new HorizontalBorder(this));
LinearLayout footer = new LinearLayout(this);
footer.setLayoutParams(MATCH_WRAP);
footer.setOrientation(HORIZONTAL);
footer.setGravity(CENTER);
goodButton = new ImageButton(this);
goodButton.setBackgroundResource(0);
goodButton.setImageResource(R.drawable.rating_good);
if(authorName == null) goodButton.setEnabled(false);
else goodButton.setOnClickListener(this);
footer.addView(goodButton);
footer.addView(new HorizontalSpace(this));
badButton = new ImageButton(this);
badButton.setBackgroundResource(0);
badButton.setImageResource(R.drawable.rating_bad);
badButton.setOnClickListener(this);
if(authorName == null) badButton.setEnabled(false);
else badButton.setOnClickListener(this);
footer.addView(badButton);
footer.addView(new HorizontalSpace(this));
readButton = new ImageButton(this);
readButton.setBackgroundResource(0);
if(read) readButton.setImageResource(R.drawable.content_unread);
else readButton.setImageResource(R.drawable.content_read);
readButton.setOnClickListener(this);
footer.addView(readButton);
footer.addView(new HorizontalSpace(this));
prevButton = new ImageButton(this);
prevButton.setBackgroundResource(0);
prevButton.setImageResource(R.drawable.navigation_previous_item);
prevButton.setOnClickListener(this);
footer.addView(prevButton);
footer.addView(new HorizontalSpace(this));
nextButton = new ImageButton(this);
nextButton.setBackgroundResource(0);
nextButton.setImageResource(R.drawable.navigation_next_item);
nextButton.setOnClickListener(this);
footer.addView(nextButton);
footer.addView(new HorizontalSpace(this));
replyButton = new ImageButton(this);
replyButton.setBackgroundResource(0);
replyButton.setImageResource(R.drawable.social_reply_all);
replyButton.setOnClickListener(this);
footer.addView(replyButton);
layout.addView(footer);
setContentView(layout);
// Bind to the service so we can wait for it to start
bindService(new Intent(BriarService.class.getName()),
serviceConnection, 0);
}
private void setReadInDatabase(final boolean read) {
dbUiExecutor.execute(new Runnable() {
public void run() {
try {
serviceConnection.waitForStartup();
long now = System.currentTimeMillis();
db.setReadFlag(messageId, read);
long duration = System.currentTimeMillis() - now;
if(LOG.isLoggable(INFO))
LOG.info("Setting flag took " + duration + " ms");
setReadInUi(read);
} catch(DbException e) {
if(LOG.isLoggable(WARNING))
LOG.log(WARNING, e.toString(), e);
} catch(InterruptedException e) {
if(LOG.isLoggable(INFO))
LOG.info("Interrupted while waiting for service");
Thread.currentThread().interrupt();
}
}
});
}
private void setReadInUi(final boolean read) {
runOnUiThread(new Runnable() {
public void run() {
ReadBlogPostActivity.this.read = read;
if(read) readButton.setImageResource(R.drawable.content_unread);
else readButton.setImageResource(R.drawable.content_read);
}
});
}
private void loadMessageBody() {
dbUiExecutor.execute(new Runnable() {
public void run() {
try {
serviceConnection.waitForStartup();
long now = System.currentTimeMillis();
byte[] body = db.getMessageBody(messageId);
long duration = System.currentTimeMillis() - now;
if(LOG.isLoggable(INFO))
LOG.info("Loading message took " + duration + " ms");
final String text = new String(body, "UTF-8");
runOnUiThread(new Runnable() {
public void run() {
content.setText(text);
}
});
} catch(NoSuchMessageException e) {
if(LOG.isLoggable(INFO)) LOG.info("Message removed");
finishOnUiThread();
} catch(DbException e) {
if(LOG.isLoggable(WARNING))
LOG.log(WARNING, e.toString(), e);
} catch(InterruptedException e) {
if(LOG.isLoggable(INFO))
LOG.info("Interrupted while waiting for service");
Thread.currentThread().interrupt();
} catch(UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
}
});
}
@Override
public void onSaveInstanceState(Bundle state) {
state.putBoolean("net.sf.briar.READ", read);
bundleEncrypter.encrypt(state);
}
@Override
public void onDestroy() {
super.onDestroy();
unbindService(serviceConnection);
}
public void onClick(View view) {
if(view == goodButton) {
if(rating == BAD) setRatingInDatabase(UNRATED);
else if(rating == UNRATED) setRatingInDatabase(GOOD);
} else if(view == badButton) {
if(rating == GOOD) setRatingInDatabase(UNRATED);
else if(rating == UNRATED) setRatingInDatabase(BAD);
} else if(view == readButton) {
setReadInDatabase(!read);
} else if(view == prevButton) {
setResult(RESULT_PREV);
finish();
} else if(view == nextButton) {
setResult(RESULT_NEXT);
finish();
} else if(view == replyButton) {
Intent i = new Intent(this, WriteBlogPostActivity.class);
i.putExtra("net.sf.briar.GROUP_ID", groupId.getBytes());
i.putExtra("net.sf.briar.PARENT_ID", messageId.getBytes());
startActivity(i);
setResult(RESULT_REPLY);
finish();
}
}
private void setRatingInDatabase(final Rating r) {
dbUiExecutor.execute(new Runnable() {
public void run() {
try {
serviceConnection.waitForStartup();
long now = System.currentTimeMillis();
db.setRating(authorId, r);
long duration = System.currentTimeMillis() - now;
if(LOG.isLoggable(INFO))
LOG.info("Setting rating took " + duration + " ms");
setRatingInUi(r);
} catch(DbException e) {
if(LOG.isLoggable(WARNING))
LOG.log(WARNING, e.toString(), e);
} catch(InterruptedException e) {
if(LOG.isLoggable(INFO))
LOG.info("Interrupted while waiting for service");
Thread.currentThread().interrupt();
}
}
});
}
private void setRatingInUi(final Rating r) {
runOnUiThread(new Runnable() {
public void run() {
rating = r;
if(r == GOOD) {
thumb.setImageResource(R.drawable.rating_good);
thumb.setVisibility(VISIBLE);
} else if(r == BAD) {
thumb.setImageResource(R.drawable.rating_bad);
thumb.setVisibility(VISIBLE);
} else {
thumb.setVisibility(INVISIBLE);
}
}
});
}
}