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Code Issues Projects Releases Wiki Activity

Merge branch '1242-display-image-attachments-save' into 'master'

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Allow the user to save image attachment outside of Briar

See merge request briar/briar!1005
This commit is contained in:
akwizgran
2018-12-07 17:31:42 +00:00
parent 5e5705c73b 59cd98db81
commit 5a7599a88d
10 changed files with 335 additions and 17 deletions
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1
briar-android/src/main/AndroidManifest.xml
View File

@@ -17,6 +17,7 @@
<uses-permission android:name="android.permission.USE_FINGERPRINT"/>
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission-sdk-23 android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission-sdk-23 android:name="android.permission.REQUEST_IGNORE_BATTERY_OPTIMIZATIONS"/>
<uses-permission-sdk-23 android:name="android.permission.USE_BIOMETRIC" />

1
briar-android/src/main/java/org/briarproject/briar/android/activity/RequestCodes.java
View File

@@ -15,5 +15,6 @@ public interface RequestCodes {
int REQUEST_UNLOCK = 11;
int REQUEST_KEYGUARD_UNLOCK = 12;
int REQUEST_ATTACH_IMAGE = 13;
int REQUEST_SAVE_ATTACHMENT = 14;
}

31
briar-android/src/main/java/org/briarproject/briar/android/conversation/AttachmentController.java
View File

@@ -4,6 +4,7 @@ import android.content.res.Resources;
import android.graphics.BitmapFactory;
import android.support.annotation.Nullable;
import android.support.media.ExifInterface;
import android.webkit.MimeTypeMap;
import org.briarproject.bramble.api.Pair;
import org.briarproject.bramble.api.db.DatabaseExecutor;
@@ -127,12 +128,20 @@ class AttachmentController {
}
// calculate thumbnail size
Size thumbnailSize = new Size(defaultSize, defaultSize);
Size thumbnailSize = new Size(defaultSize, defaultSize, size.mimeType);
if (!size.error) {
thumbnailSize = getThumbnailSize(size.width, size.height);
thumbnailSize =
getThumbnailSize(size.width, size.height, size.mimeType);
}
// get file extension
MimeTypeMap mimeTypeMap = MimeTypeMap.getSingleton();
String extension = mimeTypeMap.getExtensionFromMimeType(size.mimeType);
if (extension == null) {
return new AttachmentItem(messageId, 0, 0, "", "", 0, 0, true);
}
return new AttachmentItem(messageId, size.width, size.height,
thumbnailSize.width, thumbnailSize.height, size.error);
size.mimeType, extension, thumbnailSize.width, thumbnailSize.height,
size.error);
}
/**
@@ -151,9 +160,9 @@ class AttachmentController {
orientation == ORIENTATION_TRANSVERSE ||
orientation == ORIENTATION_TRANSPOSE) {
//noinspection SuspiciousNameCombination
return new Size(height, width);
return new Size(height, width, "image/jpeg");
}
return new Size(width, height);
return new Size(width, height, "image/jpeg");
}
/**
@@ -165,10 +174,11 @@ class AttachmentController {
BitmapFactory.decodeStream(is, null, options);
if (options.outWidth < 1 || options.outHeight < 1)
return new Size();
return new Size(options.outWidth, options.outHeight);
return new Size(options.outWidth, options.outHeight,
options.outMimeType);
}
private Size getThumbnailSize(int width, int height) {
private Size getThumbnailSize(int width, int height, String mimeType) {
float widthPercentage = maxWidth / (float) width;
float heightPercentage = maxHeight / (float) height;
float scaleFactor = Math.min(widthPercentage, heightPercentage);
@@ -184,24 +194,27 @@ class AttachmentController {
if (thumbnailWidth > maxWidth) thumbnailWidth = maxWidth;
if (thumbnailHeight > maxHeight) thumbnailHeight = maxHeight;
}
return new Size(thumbnailWidth, thumbnailHeight);
return new Size(thumbnailWidth, thumbnailHeight, mimeType);
}
private static class Size {
private final int width;
private final int height;
private final String mimeType;
private final boolean error;
private Size(int width, int height) {
private Size(int width, int height, String mimeType) {
this.width = width;
this.height = height;
this.mimeType = mimeType;
this.error = false;
}
private Size() {
this.width = 0;
this.height = 0;
this.mimeType = "";
this.error = true;
}
}

20
briar-android/src/main/java/org/briarproject/briar/android/conversation/AttachmentItem.java
View File

@@ -14,6 +14,7 @@ public class AttachmentItem implements Parcelable {
private final MessageId messageId;
private final int width, height;
private final String mimeType, extension;
private final int thumbnailWidth, thumbnailHeight;
private final boolean hasError;
@@ -30,11 +31,14 @@ public class AttachmentItem implements Parcelable {
}
};
AttachmentItem(MessageId messageId, int width, int height,
int thumbnailWidth, int thumbnailHeight, boolean hasError) {
AttachmentItem(MessageId messageId, int width, int height, String mimeType,
String extension, int thumbnailWidth, int thumbnailHeight,
boolean hasError) {
this.messageId = messageId;
this.width = width;
this.height = height;
this.mimeType = mimeType;
this.extension = extension;
this.thumbnailWidth = thumbnailWidth;
this.thumbnailHeight = thumbnailHeight;
this.hasError = hasError;
@@ -46,6 +50,8 @@ public class AttachmentItem implements Parcelable {
messageId = new MessageId(messageIdByte);
width = in.readInt();
height = in.readInt();
mimeType = in.readString();
extension = in.readString();
thumbnailWidth = in.readInt();
thumbnailHeight = in.readInt();
hasError = in.readByte() != 0;
@@ -63,6 +69,14 @@ public class AttachmentItem implements Parcelable {
return height;
}
String getMimeType() {
return mimeType;
}
String getExtension() {
return extension;
}
int getThumbnailWidth() {
return thumbnailWidth;
}
@@ -90,6 +104,8 @@ public class AttachmentItem implements Parcelable {
dest.writeByteArray(messageId.getBytes());
dest.writeInt(width);
dest.writeInt(height);
dest.writeString(mimeType);
dest.writeString(extension);
dest.writeInt(thumbnailWidth);
dest.writeInt(thumbnailHeight);
dest.writeByte((byte) (hasError ? 1 : 0));

102
briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageActivity.java
View File

@@ -1,14 +1,23 @@
package org.briarproject.briar.android.conversation;
import android.arch.lifecycle.ViewModelProvider;
import android.arch.lifecycle.ViewModelProviders;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.graphics.drawable.Animatable;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.annotation.RequiresApi;
import android.support.design.widget.AppBarLayout;
import android.support.design.widget.Snackbar;
import android.support.v4.content.ContextCompat;
import android.support.v4.graphics.drawable.DrawableCompat;
import android.support.v7.app.AlertDialog.Builder;
import android.support.v7.widget.Toolbar;
import android.transition.Fade;
import android.transition.Transition;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
@@ -26,8 +35,18 @@ import org.briarproject.briar.android.activity.BriarActivity;
import org.briarproject.briar.android.conversation.glide.GlideApp;
import org.briarproject.briar.android.view.PullDownLayout;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import javax.inject.Inject;
import static android.content.Intent.ACTION_CREATE_DOCUMENT;
import static android.content.Intent.CATEGORY_OPENABLE;
import static android.content.Intent.EXTRA_TITLE;
import static android.graphics.Color.TRANSPARENT;
import static android.os.Build.VERSION.SDK_INT;
import static android.support.design.widget.Snackbar.LENGTH_LONG;
import static android.view.View.GONE;
import static android.view.View.SYSTEM_UI_FLAG_FULLSCREEN;
import static android.view.View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
@@ -37,6 +56,7 @@ import static android.view.WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
import static android.widget.ImageView.ScaleType.FIT_START;
import static com.bumptech.glide.load.engine.DiskCacheStrategy.NONE;
import static java.util.Objects.requireNonNull;
import static org.briarproject.briar.android.activity.RequestCodes.REQUEST_SAVE_ATTACHMENT;
import static org.briarproject.briar.android.util.UiUtils.formatDateAbsolute;
public class ImageActivity extends BriarActivity
@@ -46,9 +66,14 @@ public class ImageActivity extends BriarActivity
final static String NAME = "name";
final static String DATE = "date";
@Inject
ViewModelProvider.Factory viewModelFactory;
private ImageViewModel viewModel;
private PullDownLayout layout;
private AppBarLayout appBarLayout;
private PhotoView photoView;
private AttachmentItem attachment;
@Override
public void injectActivity(ActivityComponent component) {
@@ -67,6 +92,11 @@ public class ImageActivity extends BriarActivity
setSceneTransitionAnimation(transition, null, transition);
}
// get View Model
viewModel = ViewModelProviders.of(this, viewModelFactory)
.get(ImageViewModel.class);
viewModel.getSaveState().observe(this, this::onImageSaveStateChanged);
// inflate layout
setContentView(R.layout.activity_image);
layout = findViewById(R.id.layout);
@@ -88,7 +118,7 @@ public class ImageActivity extends BriarActivity
TextView dateView = toolbar.findViewById(R.id.dateView);
// Intent Extras
AttachmentItem attachment = getIntent().getParcelableExtra(ATTACHMENT);
attachment = getIntent().getParcelableExtra(ATTACHMENT);
String name = getIntent().getStringExtra(NAME);
long time = getIntent().getLongExtra(DATE, 0);
String date = formatDateAbsolute(this, time);
@@ -143,17 +173,34 @@ public class ImageActivity extends BriarActivity
.into(photoView);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.image_actions, menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
return true;
case R.id.action_save_image:
showSaveImageDialog();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
@Override
protected void onActivityResult(int request, int result, Intent data) {
super.onActivityResult(request, result, data);
if (request == REQUEST_SAVE_ATTACHMENT && result == RESULT_OK) {
viewModel.saveImage(attachment, data.getData());
}
}
@Override
public void onPullStart() {
appBarLayout.animate()
@@ -190,9 +237,8 @@ public class ImageActivity extends BriarActivity
@RequiresApi(api = 16)
private void hideSystemUi(View decorView) {
decorView.setSystemUiVisibility(SYSTEM_UI_FLAG_LAYOUT_STABLE
| SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
| SYSTEM_UI_FLAG_FULLSCREEN
decorView.setSystemUiVisibility(SYSTEM_UI_FLAG_FULLSCREEN |
SYSTEM_UI_FLAG_LAYOUT_STABLE | SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
);
appBarLayout.animate()
.translationYBy(-1 * appBarLayout.getHeight())
@@ -204,8 +250,7 @@ public class ImageActivity extends BriarActivity
@RequiresApi(api = 16)
private void showSystemUi(View decorView) {
decorView.setSystemUiVisibility(
SYSTEM_UI_FLAG_LAYOUT_STABLE
| SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
SYSTEM_UI_FLAG_LAYOUT_STABLE | SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
);
appBarLayout.animate()
.translationYBy(appBarLayout.getHeight())
@@ -230,4 +275,49 @@ public class ImageActivity extends BriarActivity
drawableTop != appBarLayout.getTop();
}
private void showSaveImageDialog() {
OnClickListener okListener = (dialog, which) -> {
if (SDK_INT >= 19) {
Intent intent = getCreationIntent();
startActivityForResult(intent, REQUEST_SAVE_ATTACHMENT);
} else {
viewModel.saveImage(attachment);
}
};
Builder builder = new Builder(this, R.style.BriarDialogTheme);
builder.setTitle(getString(R.string.dialog_title_save_image));
builder.setMessage(getString(R.string.dialog_message_save_image));
Drawable icon = ContextCompat.getDrawable(this, R.drawable.ic_security);
DrawableCompat.setTint(requireNonNull(icon),
ContextCompat.getColor(this, R.color.color_primary));
builder.setIcon(icon);
builder.setPositiveButton(R.string.save_image, okListener);
builder.setNegativeButton(R.string.cancel, null);
builder.show();
}
@RequiresApi(api = 19)
private Intent getCreationIntent() {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss",
Locale.getDefault());
String fileName = sdf.format(new Date());
Intent intent = new Intent(ACTION_CREATE_DOCUMENT);
intent.addCategory(CATEGORY_OPENABLE);
intent.setType(attachment.getMimeType());
intent.putExtra(EXTRA_TITLE, fileName);
return intent;
}
private void onImageSaveStateChanged(@Nullable Boolean error) {
if (error == null) return;
int stringRes = error ?
R.string.save_image_error : R.string.save_image_success;
int colorRes = error ?
R.color.briar_red : R.color.briar_primary;
Snackbar s = Snackbar.make(layout, stringRes, LENGTH_LONG);
s.getView().setBackgroundResource(colorRes);
s.show();
viewModel.onSaveStateSeen();
}
}

166
briar-android/src/main/java/org/briarproject/briar/android/conversation/ImageViewModel.java Normal file
View File

@@ -0,0 +1,166 @@
package org.briarproject.briar.android.conversation;
import android.app.Application;
import android.arch.lifecycle.AndroidViewModel;
import android.arch.lifecycle.LiveData;
import android.arch.lifecycle.MutableLiveData;
import android.net.Uri;
import android.support.annotation.Nullable;
import android.support.annotation.UiThread;
import org.briarproject.bramble.api.db.DatabaseExecutor;
import org.briarproject.bramble.api.db.DbException;
import org.briarproject.bramble.api.lifecycle.IoExecutor;
import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
import org.briarproject.bramble.api.sync.MessageId;
import org.briarproject.briar.api.messaging.Attachment;
import org.briarproject.briar.api.messaging.MessagingManager;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.concurrent.Executor;
import java.util.logging.Logger;
import javax.inject.Inject;
import static android.media.MediaScannerConnection.scanFile;
import static android.os.Environment.DIRECTORY_PICTURES;
import static android.os.Environment.getExternalStoragePublicDirectory;
import static java.util.logging.Level.WARNING;
import static java.util.logging.Logger.getLogger;
import static org.briarproject.bramble.util.IoUtils.copyAndClose;
import static org.briarproject.bramble.util.LogUtils.logException;
@NotNullByDefault
public class ImageViewModel extends AndroidViewModel {
private static Logger LOG = getLogger(ImageViewModel.class.getName());
private final MessagingManager messagingManager;
@DatabaseExecutor
private final Executor dbExecutor;
@IoExecutor
private final Executor ioExecutor;
private MutableLiveData<Boolean> saveState = new MutableLiveData<>();
@Inject
public ImageViewModel(Application application,
MessagingManager messagingManager,
@DatabaseExecutor Executor dbExecutor,
@IoExecutor Executor ioExecutor) {
super(application);
this.messagingManager = messagingManager;
this.dbExecutor = dbExecutor;
this.ioExecutor = ioExecutor;
}
/**
* A LiveData that is true if the image was saved,
* false if there was an error and null otherwise.
*
* Call {@link #onSaveStateSeen()} after consuming an update.
*/
LiveData<Boolean> getSaveState() {
return saveState;
}
@UiThread
void onSaveStateSeen() {
saveState.setValue(null);
}
/**
* Saves the attachment to a writeable {@link Uri}.
*/
@UiThread
void saveImage(AttachmentItem attachment, @Nullable Uri uri) {
if (uri == null) {
saveState.setValue(false);
} else {
saveImage(attachment, () -> getOutputStream(uri), null);
}
}
/**
* Saves the attachment on external storage,
* assuming the permission was granted during install time.
*/
void saveImage(AttachmentItem attachment) {
File file = getImageFile(attachment);
saveImage(attachment, () -> getOutputStream(file), () -> scanFile(
getApplication(), new String[] {file.toString()}, null, null));
}
private void saveImage(AttachmentItem attachment, OutputStreamProvider osp,
@Nullable Runnable afterCopy) {
MessageId messageId = attachment.getMessageId();
dbExecutor.execute(() -> {
try {
Attachment a = messagingManager.getAttachment(messageId);
copyImageFromDb(a, osp, afterCopy);
} catch (DbException e) {
logException(LOG, WARNING, e);
saveState.postValue(true);
}
});
}
private void copyImageFromDb(Attachment a, OutputStreamProvider osp,
@Nullable Runnable afterCopy) {
ioExecutor.execute(() -> {
try {
InputStream is = a.getStream();
OutputStream os = osp.getOutputStream();
copyAndClose(is, os);
if (afterCopy != null) afterCopy.run();
saveState.postValue(false);
} catch (IOException e) {
logException(LOG, WARNING, e);
saveState.postValue(true);
}
});
}
private String getFileName() {
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss",
Locale.getDefault());
return sdf.format(new Date());
}
private File getImageFile(AttachmentItem attachment) {
File path = getExternalStoragePublicDirectory(DIRECTORY_PICTURES);
//noinspection ResultOfMethodCallIgnored
path.mkdirs();
String fileName = getFileName();
String ext = "." + attachment.getExtension();
File file = new File(path, fileName + ext);
int i = 1;
while (file.exists()) {
file = new File(path, fileName + " (" + i + ")" + ext);
}
return file;
}
private OutputStream getOutputStream(File file) throws IOException {
return new FileOutputStream(file);
}
private OutputStream getOutputStream(Uri uri) throws IOException {
OutputStream os =
getApplication().getContentResolver().openOutputStream(uri);
if (os == null) throw new IOException();
return os;
}
private interface OutputStreamProvider {
OutputStream getOutputStream() throws IOException;
}
}

7
briar-android/src/main/java/org/briarproject/briar/android/viewmodel/ViewModelModule.java
View File

@@ -4,6 +4,7 @@ import android.arch.lifecycle.ViewModel;
import android.arch.lifecycle.ViewModelProvider;
import org.briarproject.briar.android.conversation.ConversationViewModel;
import org.briarproject.briar.android.conversation.ImageViewModel;
import javax.inject.Singleton;
@@ -20,6 +21,12 @@ public abstract class ViewModelModule {
abstract ViewModel bindConversationViewModel(
ConversationViewModel conversationViewModel);
@Binds
@IntoMap
@ViewModelKey(ImageViewModel.class)
abstract ViewModel bindImageViewModel(
ImageViewModel imageViewModel);
@Binds
@Singleton
abstract ViewModelProvider.Factory bindViewModelFactory(

9
briar-android/src/main/res/drawable/ic_security.xml Normal file
View File

@@ -0,0 +1,9 @@
<vector xmlns:android="http://schemas.android.com/apk/res/android"
android:width="24dp"
android:height="24dp"
android:viewportWidth="24.0"
android:viewportHeight="24.0">
<path
android:fillColor="#FF000000"
android:pathData="M12,1L3,5v6c0,5.55 3.84,10.74 9,12 5.16,-1.26 9,-6.45 9,-12L21,5l-9,-4zM12,11.99h7c-0.53,4.12 -3.28,7.79 -7,8.94L12,12L5,12L5,6.3l7,-3.11v8.8z"/>
</vector>

10
briar-android/src/main/res/menu/image_actions.xml Normal file
View File

@@ -0,0 +1,10 @@
<?xml version="1.0" encoding="utf-8"?>
<menu
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="@+id/action_save_image"
android:title="@string/save_image"
app:showAsAction="never"/>
</menu>

5
briar-android/src/main/res/values/strings.xml
View File

@@ -139,6 +139,11 @@
<string name="contact_deleted_toast">Contact deleted</string>
<!-- This is shown in the action bar when opening an image in fullscreen that the user sent -->
<string name="you">You</string>
<string name="save_image">Save image</string>
<string name="dialog_title_save_image">Save Image?</string>
<string name="dialog_message_save_image">Saving this image will allow other apps to access it.\n\nAre you sure you want to save?</string>
<string name="save_image_success">Image was saved</string>
<string name="save_image_error">Could not save image</string>
<!-- Adding Contacts -->
<string name="add_contact_title">Add a Contact</string>