Jake McGinty
10 years ago
parent
503d1ef452
commit
53da1f849a
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<?xml version="1.0" encoding="utf-8"?>
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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
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android:layout_width="match_parent"
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android:layout_height="match_parent">
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<ImageView android:id="@+id/image"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:contentDescription="@string/media_preview_activity__image_content_description"
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android:visibility="gone"/>
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</RelativeLayout>
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@ -0,0 +1,7 @@
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<?xml version="1.0" encoding="utf-8"?>
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<menu xmlns:android="http://schemas.android.com/apk/res/android">
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<item android:id="@+id/save"
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android:title="@string/media_preview__save_title"
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android:icon="@drawable/ic_action_save_holo_dark"
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android:showAsAction="always"/>
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</menu>
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@ -0,0 +1,199 @@
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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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@ -0,0 +1,162 @@
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package org.thoughtcrime.securesms.util;
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import android.app.AlertDialog;
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import android.content.ContentUris;
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import android.content.Context;
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import android.content.DialogInterface.OnClickListener;
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import android.media.MediaScannerConnection;
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import android.net.Uri;
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import android.os.Environment;
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import android.util.Log;
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import android.webkit.MimeTypeMap;
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import android.widget.Toast;
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import org.thoughtcrime.securesms.R;
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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.whispersystems.textsecure.crypto.MasterSecret;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.lang.ref.WeakReference;
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import java.text.SimpleDateFormat;
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public class SaveAttachmentTask extends ProgressDialogAsyncTask<SaveAttachmentTask.Attachment, Void, Integer> {
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private static final String TAG = SaveAttachmentTask.class.getSimpleName();
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private static final int SUCCESS = 0;
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private static final int FAILURE = 1;
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private static final int WRITE_ACCESS_FAILURE = 2;
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private final WeakReference<Context> contextReference;
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private final WeakReference<MasterSecret> masterSecretReference;
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public SaveAttachmentTask(Context context, MasterSecret masterSecret) {
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super(context, R.string.ConversationFragment_saving_attachment, R.string.ConversationFragment_saving_attachment_to_sd_card);
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this.contextReference = new WeakReference<Context>(context);
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this.masterSecretReference = new WeakReference<MasterSecret>(masterSecret);
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}
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@Override
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protected Integer doInBackground(SaveAttachmentTask.Attachment... attachments) {
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if (attachments == null || attachments.length != 1 || attachments[0] == null) {
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throw new AssertionError("must pass in exactly one attachment");
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}
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Attachment attachment = attachments[0];
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try {
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Context context = contextReference.get();
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MasterSecret masterSecret = masterSecretReference.get();
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if (!Environment.getExternalStorageDirectory().canWrite()) {
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return WRITE_ACCESS_FAILURE;
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}
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if (context == null) {
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return FAILURE;
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}
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File mediaFile = constructOutputFile(attachment.contentType, attachment.date);
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InputStream inputStream = DatabaseFactory.getEncryptingPartDatabase(context, masterSecret).getPartStream(ContentUris.parseId(attachment.uri));
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OutputStream outputStream = new FileOutputStream(mediaFile);
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org.whispersystems.textsecure.util.Util.copy(inputStream, outputStream);
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MediaScannerConnection.scanFile(context, new String[]{mediaFile.getAbsolutePath()},
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new String[]{attachment.contentType}, null);
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return SUCCESS;
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} catch (IOException ioe) {
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Log.w(TAG, ioe);
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return FAILURE;
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}
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}
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@Override
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protected void onPostExecute(Integer result) {
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super.onPostExecute(result);
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Context context = contextReference.get();
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if (context == null) return;
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switch (result) {
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case FAILURE:
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Toast.makeText(context, R.string.ConversationFragment_error_while_saving_attachment_to_sd_card,
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Toast.LENGTH_LONG).show();
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break;
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case SUCCESS:
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Toast.makeText(context, R.string.ConversationFragment_success_exclamation,
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Toast.LENGTH_LONG).show();
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break;
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case WRITE_ACCESS_FAILURE:
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Toast.makeText(context, R.string.ConversationFragment_unable_to_write_to_sd_card_exclamation,
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Toast.LENGTH_LONG).show();
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break;
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}
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}
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private File constructOutputFile(String contentType, long timestamp) throws IOException {
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File sdCard = Environment.getExternalStorageDirectory();
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File outputDirectory;
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if (contentType.startsWith("video/")) {
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outputDirectory = new File(sdCard.getAbsoluteFile() + File.separator + Environment.DIRECTORY_MOVIES);
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} else if (contentType.startsWith("audio/")) {
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outputDirectory = new File(sdCard.getAbsolutePath() + File.separator + Environment.DIRECTORY_MUSIC);
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} else if (contentType.startsWith("image/")) {
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outputDirectory = new File(sdCard.getAbsolutePath() + File.separator + Environment.DIRECTORY_PICTURES);
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} else {
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outputDirectory = new File(sdCard.getAbsolutePath() + File.separator + Environment.DIRECTORY_DOWNLOADS);
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}
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if (!outputDirectory.mkdirs()) Log.w(TAG, "mkdirs() returned false, attempting to continue");
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MimeTypeMap mimeTypeMap = MimeTypeMap.getSingleton();
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String extension = mimeTypeMap.getExtensionFromMimeType(contentType);
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SimpleDateFormat dateFormatter = new SimpleDateFormat("yyyy-MM-dd-HHmmss");
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String base = "textsecure-" + dateFormatter.format(timestamp);
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if (extension == null)
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extension = "attach";
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int i = 0;
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File file = new File(outputDirectory, base + "." + extension);
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while (file.exists()) {
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file = new File(outputDirectory, base + "-" + (++i) + "." + extension);
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}
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return file;
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}
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public static class Attachment {
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public Uri uri;
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public String contentType;
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public long date;
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public Attachment(Uri uri, String contentType, long date) {
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if (uri == null || contentType == null || date < 0) {
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throw new AssertionError("uri, content type, and date must all be specified");
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}
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if (!PartProvider.isAuthority(uri)) {
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throw new AssertionError("attachment must be a TextSecure attachment");
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}
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this.uri = uri;
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this.contentType = contentType;
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this.date = date;
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}
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}
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public static void showWarningDialog(Context context, OnClickListener onAcceptListener) {
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AlertDialog.Builder builder = new AlertDialog.Builder(context);
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builder.setTitle(R.string.ConversationFragment_save_to_sd_card);
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builder.setIcon(Dialogs.resolveIcon(context, R.attr.dialog_alert_icon));
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builder.setCancelable(true);
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builder.setMessage(R.string.ConversationFragment_this_media_has_been_stored_in_an_encrypted_database_warning);
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builder.setPositiveButton(R.string.yes, onAcceptListener);
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builder.setNegativeButton(R.string.no, null);
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builder.show();
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}
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}
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Reference in New Issue