session-android/src/org/thoughtcrime/securesms/MediaPreviewActivity.java
2015-03-12 18:23:08 -07:00

274 lines
8.8 KiB
Java

/**
* Copyright (C) 2014 Open Whisper Systems
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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 org.thoughtcrime.securesms;
import android.annotation.TargetApi;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.opengl.GLES20;
import android.os.AsyncTask;
import android.os.Build.VERSION;
import android.os.Build.VERSION_CODES;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import org.thoughtcrime.securesms.crypto.MasterSecret;
import org.thoughtcrime.securesms.mms.PartAuthority;
import org.thoughtcrime.securesms.recipients.Recipient;
import org.thoughtcrime.securesms.recipients.Recipient.RecipientModifiedListener;
import org.thoughtcrime.securesms.recipients.RecipientFactory;
import org.thoughtcrime.securesms.util.BitmapDecodingException;
import org.thoughtcrime.securesms.util.BitmapUtil;
import org.thoughtcrime.securesms.util.DateUtils;
import org.thoughtcrime.securesms.util.DynamicLanguage;
import org.thoughtcrime.securesms.util.SaveAttachmentTask;
import org.thoughtcrime.securesms.util.SaveAttachmentTask.Attachment;
import java.io.IOException;
import uk.co.senab.photoview.PhotoViewAttacher;
/**
* Activity for displaying media attachments in-app
*/
public class MediaPreviewActivity extends PassphraseRequiredActionBarActivity implements RecipientModifiedListener {
private final static String TAG = MediaPreviewActivity.class.getSimpleName();
public final static String MASTER_SECRET_EXTRA = "master_secret";
public final static String RECIPIENT_EXTRA = "recipient";
public final static String DATE_EXTRA = "date";
private final DynamicLanguage dynamicLanguage = new DynamicLanguage();
private MasterSecret masterSecret;
private boolean paused;
private TextView errorText;
private Bitmap bitmap;
private ImageView image;
private PhotoViewAttacher imageAttacher;
private Uri mediaUri;
private String mediaType;
private Recipient recipient;
private long date;
@Override
protected void onCreate(Bundle bundle) {
this.setTheme(R.style.TextSecure_DarkTheme);
dynamicLanguage.onCreate(this);
super.onCreate(bundle);
setFullscreenIfPossible();
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
setContentView(R.layout.media_preview_activity);
initializeViews();
initializeResources();
initializeActionBar();
}
@TargetApi(VERSION_CODES.JELLY_BEAN)
private void setFullscreenIfPossible() {
if (VERSION.SDK_INT >= VERSION_CODES.JELLY_BEAN) {
getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN);
}
}
@Override
public void onModified(Recipient recipient) {
initializeActionBar();
}
private void initializeActionBar() {
final CharSequence relativeTimeSpan;
if (date > 0) {
relativeTimeSpan = DateUtils.getRelativeTimeSpanString(date,
System.currentTimeMillis(),
DateUtils.MINUTE_IN_MILLIS);
} else {
relativeTimeSpan = null;
}
getSupportActionBar().setTitle(recipient == null ? getString(R.string.MediaPreviewActivity_you) : recipient.toShortString());
getSupportActionBar().setSubtitle(relativeTimeSpan);
}
@Override
public void onResume() {
super.onResume();
paused = false;
dynamicLanguage.onResume(this);
if (recipient != null) recipient.addListener(this);
initializeMedia();
}
@Override
public void onPause() {
super.onPause();
paused = true;
if (recipient != null) recipient.removeListener(this);
cleanupMedia();
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
if (recipient != null) recipient.removeListener(this);
setIntent(intent);
initializeResources();
initializeActionBar();
}
private void initializeViews() {
errorText = (TextView) findViewById(R.id.error);
image = (ImageView) findViewById(R.id.image);
imageAttacher = new PhotoViewAttacher(image);
}
private void initializeResources() {
final long recipientId = getIntent().getLongExtra(RECIPIENT_EXTRA, -1);
masterSecret = getIntent().getParcelableExtra(MASTER_SECRET_EXTRA);
mediaUri = getIntent().getData();
mediaType = getIntent().getType();
date = getIntent().getLongExtra(DATE_EXTRA, -1);
if (recipientId > -1) {
recipient = RecipientFactory.getRecipientForId(this, recipientId, true);
recipient.addListener(this);
} else {
recipient = null;
}
}
private void initializeMedia() {
if (!isContentTypeSupported(mediaType)) {
Log.w(TAG, "Unsupported media type sent to MediaPreviewActivity, finishing.");
Toast.makeText(getApplicationContext(), R.string.MediaPreviewActivity_unssuported_media_type, Toast.LENGTH_LONG).show();
finish();
}
Log.w(TAG, "Loading Part URI: " + mediaUri);
if (mediaType != null && mediaType.startsWith("image/")) {
displayImage();
}
}
private void cleanupMedia() {
image.setImageDrawable(null);
if (bitmap != null) {
bitmap.recycle();
bitmap = null;
}
}
private void displayImage() {
try {
image.setImageBitmap(BitmapFactory.decodeStream(PartAuthority.getThumbnail(this, masterSecret, mediaUri)));
image.setVisibility(View.VISIBLE);
} catch (IOException fnfe) {
Log.w(TAG, "tried to render thumbnail, but it wasn't found. carrying on.");
}
new AsyncTask<Void,Void,Bitmap>() {
@Override
protected Bitmap doInBackground(Void... params) {
try {
int[] maxTextureSizeParams = new int[1];
GLES20.glGetIntegerv(GLES20.GL_MAX_TEXTURE_SIZE, maxTextureSizeParams, 0);
int maxTextureSize = Math.max(maxTextureSizeParams[0], 2048);
Log.w(TAG, "reported GL_MAX_TEXTURE_SIZE: " + maxTextureSize);
return BitmapUtil.createScaledBitmap(MediaPreviewActivity.this, masterSecret, mediaUri,
maxTextureSize, maxTextureSize);
} catch (IOException | BitmapDecodingException e) {
return null;
}
}
@Override
protected void onPostExecute(Bitmap bitmap) {
if (paused) {
if (bitmap != null) bitmap.recycle();
return;
}
if (bitmap == null) {
errorText.setText(R.string.MediaPreviewActivity_cant_display);
errorText.setVisibility(View.VISIBLE);
} else {
MediaPreviewActivity.this.bitmap = bitmap;
image.setImageBitmap(bitmap);
image.setVisibility(View.VISIBLE);
imageAttacher.update();
}
}
}.execute();
}
private void saveToDisk() {
SaveAttachmentTask.showWarningDialog(this, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
SaveAttachmentTask saveTask = new SaveAttachmentTask(MediaPreviewActivity.this, masterSecret);
saveTask.execute(new Attachment(mediaUri, mediaType, date));
}
});
}
@Override
public boolean onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
menu.clear();
MenuInflater inflater = this.getMenuInflater();
inflater.inflate(R.menu.media_preview, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
super.onOptionsItemSelected(item);
switch (item.getItemId()) {
case R.id.save: saveToDisk(); return true;
case android.R.id.home: finish(); return true;
}
return false;
}
public static boolean isContentTypeSupported(final String contentType) {
return contentType != null && contentType.startsWith("image/");
}
}