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in-app image media preview
// FREEBIE
This commit is contained in:
Jake McGinty
199
src/org/thoughtcrime/securesms/MediaPreviewActivity.java
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199
src/org/thoughtcrime/securesms/MediaPreviewActivity.java
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/**
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* Copyright (C) 2014 Open Whisper Systems
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.thoughtcrime.securesms;
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import android.annotation.TargetApi;
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import android.content.ContentUris;
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import android.content.DialogInterface;
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import android.graphics.BitmapFactory;
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import android.net.Uri;
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import android.os.Build.VERSION;
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import android.os.Build.VERSION_CODES;
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import android.os.Bundle;
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import android.util.Log;
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import android.view.View;
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import android.view.WindowManager;
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import android.widget.ImageView;
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import android.widget.Toast;
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import com.actionbarsherlock.view.Menu;
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import com.actionbarsherlock.view.MenuInflater;
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import com.actionbarsherlock.view.MenuItem;
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import org.thoughtcrime.securesms.database.DatabaseFactory;
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import org.thoughtcrime.securesms.providers.PartProvider;
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import org.thoughtcrime.securesms.recipients.Recipient;
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import org.thoughtcrime.securesms.util.DateUtils;
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import org.thoughtcrime.securesms.util.DynamicLanguage;
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import org.thoughtcrime.securesms.util.DynamicTheme;
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import org.thoughtcrime.securesms.util.SaveAttachmentTask;
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import org.thoughtcrime.securesms.util.SaveAttachmentTask.Attachment;
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import org.whispersystems.textsecure.crypto.MasterSecret;
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import java.io.IOException;
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import java.io.InputStream;
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import uk.co.senab.photoview.PhotoViewAttacher;
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/**
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* Activity for displaying media attachments in-app
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*/
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public class MediaPreviewActivity extends PassphraseRequiredSherlockActivity {
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private final static String TAG = MediaPreviewActivity.class.getSimpleName();
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public final static String MASTER_SECRET_EXTRA = "master_secret";
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public final static String RECIPIENT_EXTRA = "recipient";
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public final static String DATE_EXTRA = "date";
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private final DynamicTheme dynamicTheme = new DynamicTheme();
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private final DynamicLanguage dynamicLanguage = new DynamicLanguage();
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private MasterSecret masterSecret;
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private ImageView image;
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private PhotoViewAttacher imageAttacher;
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private Uri mediaUri;
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private String mediaType;
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private Recipient recipient;
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private long date;
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@Override
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protected void onCreate(Bundle bundle) {
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setFullscreenIfPossible();
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getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
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WindowManager.LayoutParams.FLAG_FULLSCREEN);
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dynamicTheme.onCreate(this);
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dynamicLanguage.onCreate(this);
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super.onCreate(bundle);
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getSupportActionBar().setDisplayHomeAsUpEnabled(true);
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setContentView(R.layout.media_preview_activity);
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initializeResources();
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}
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@TargetApi(VERSION_CODES.HONEYCOMB)
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private void setFullscreenIfPossible() {
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if (VERSION.SDK_INT >= VERSION_CODES.HONEYCOMB) {
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getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN);
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}
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}
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@Override
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public void onResume() {
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super.onResume();
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dynamicTheme.onResume(this);
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dynamicLanguage.onResume(this);
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masterSecret = getIntent().getParcelableExtra(MASTER_SECRET_EXTRA);
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mediaUri = getIntent().getData();
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mediaType = getIntent().getType();
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recipient = getIntent().getParcelableExtra(RECIPIENT_EXTRA);
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date = getIntent().getLongExtra(DATE_EXTRA, -1);
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final CharSequence relativeTimeSpan;
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if (date > 0) {
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relativeTimeSpan = DateUtils.getRelativeTimeSpanString(date,
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System.currentTimeMillis(),
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DateUtils.MINUTE_IN_MILLIS);
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} else {
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relativeTimeSpan = null;
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}
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getSupportActionBar().setTitle(recipient == null ? getString(R.string.MediaPreviewActivity_you) : recipient.getName());
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getSupportActionBar().setSubtitle(relativeTimeSpan);
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if (!isContentTypeSupported(mediaType)) {
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Log.w(TAG, "Unsupported media type sent to MediaPreviewActivity, finishing.");
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Toast.makeText(getApplicationContext(), "Unsupported media type", Toast.LENGTH_LONG).show();
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finish();
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}
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try {
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Log.w(TAG, "Loading Part URI: " + mediaUri);
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final InputStream is = getInputStream(mediaUri, masterSecret);
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if (mediaType != null && mediaType.startsWith("image/")) {
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displayImage(is);
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}
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} catch (IOException ioe) {
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Log.w(TAG, ioe);
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Toast.makeText(getApplicationContext(), "Could not read the media", Toast.LENGTH_LONG).show();
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finish();
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}
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}
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private InputStream getInputStream(Uri uri, MasterSecret masterSecret) throws IOException {
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if (PartProvider.isAuthority(uri)) {
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return DatabaseFactory.getEncryptingPartDatabase(this, masterSecret).getPartStream(ContentUris.parseId(uri));
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} else {
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throw new AssertionError("Given a URI that is not handled by our app.");
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}
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}
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@Override
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public void onPause() {
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super.onPause();
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}
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private void initializeResources() {
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image = (ImageView) findViewById(R.id.image);
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imageAttacher = new PhotoViewAttacher(image);
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}
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private void displayImage(final InputStream is) {
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image.setImageBitmap(BitmapFactory.decodeStream(is));
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image.setVisibility(View.VISIBLE);
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imageAttacher.update();
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}
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private void saveToDisk() {
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SaveAttachmentTask.showWarningDialog(this, new DialogInterface.OnClickListener() {
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@Override
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public void onClick(DialogInterface dialogInterface, int i) {
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SaveAttachmentTask saveTask = new SaveAttachmentTask(MediaPreviewActivity.this, masterSecret);
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saveTask.execute(new Attachment(mediaUri, mediaType, date));
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}
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});
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}
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@Override
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public boolean onPrepareOptionsMenu(Menu menu) {
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super.onPrepareOptionsMenu(menu);
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menu.clear();
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MenuInflater inflater = this.getSupportMenuInflater();
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inflater.inflate(R.menu.media_preview, menu);
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return true;
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}
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@Override
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public boolean onOptionsItemSelected(MenuItem item) {
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super.onOptionsItemSelected(item);
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switch (item.getItemId()) {
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case R.id.save: saveToDisk(); return true;
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case android.R.id.home: finish(); return true;
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}
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return false;
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}
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public static boolean isContentTypeSupported(final String contentType) {
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return contentType != null && contentType.startsWith("image/");
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}
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}
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