open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFilesFragment.java
2017-02-09 20:02:23 +01:00

947 lines
36 KiB
Java

/*
* Copyright (C) 2014-2015 Dominik Schürmann <dominik@dominikschuermann.de>
*
* 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.sufficientlysecure.keychain.ui;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import android.Manifest;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Bitmap;
import android.graphics.Point;
import android.net.Uri;
import android.os.Build;
import android.os.Build.VERSION_CODES;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.FragmentActivity;
import android.support.v4.content.ContextCompat;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import org.openintents.openpgp.util.OpenPgpUtils;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.operations.results.SignEncryptResult;
import org.sufficientlysecure.keychain.pgp.KeyRing;
import org.sufficientlysecure.keychain.pgp.PgpSecurityConstants;
import org.sufficientlysecure.keychain.pgp.PgpSignEncryptData;
import org.sufficientlysecure.keychain.pgp.SignEncryptParcel;
import org.sufficientlysecure.keychain.provider.TemporaryFileProvider;
import org.sufficientlysecure.keychain.service.input.CryptoInputParcel;
import org.sufficientlysecure.keychain.ui.adapter.SpacesItemDecoration;
import org.sufficientlysecure.keychain.ui.base.CachingCryptoOperationFragment;
import org.sufficientlysecure.keychain.ui.dialog.DeleteFileDialogFragment;
import org.sufficientlysecure.keychain.ui.util.FormattingUtils;
import org.sufficientlysecure.keychain.ui.util.Notify;
import org.sufficientlysecure.keychain.ui.util.Notify.ActionListener;
import org.sufficientlysecure.keychain.ui.util.Notify.Style;
import org.sufficientlysecure.keychain.util.FileHelper;
import org.sufficientlysecure.keychain.util.Log;
import org.sufficientlysecure.keychain.util.Passphrase;
import org.sufficientlysecure.keychain.util.Preferences;
public class EncryptFilesFragment
extends CachingCryptoOperationFragment<SignEncryptParcel, SignEncryptResult> {
public static final String ARG_DELETE_AFTER_ENCRYPT = "delete_after_encrypt";
public static final String ARG_ENCRYPT_FILENAMES = "encrypt_filenames";
public static final String ARG_USE_COMPRESSION = "use_compression";
public static final String ARG_USE_ASCII_ARMOR = "use_ascii_armor";
public static final String ARG_URIS = "uris";
public static final int REQUEST_CODE_INPUT = 0x00007003;
private static final int REQUEST_CODE_OUTPUT = 0x00007007;
private static final int REQUEST_PERMISSION_READ_EXTERNAL_STORAGE = 12;
private boolean mUseArmor;
private boolean mUseCompression;
private boolean mDeleteAfterEncrypt;
private boolean mEncryptFilenames;
private boolean mHiddenRecipients = false;
private ArrayList<Uri> mPendingInputUris;
private AfterEncryptAction mAfterEncryptAction;
private enum AfterEncryptAction {
SAVE, SHARE, COPY;
}
private ArrayList<Uri> mOutputUris;
private RecyclerView mSelectedFiles;
FilesAdapter mFilesAdapter;
/**
* Creates new instance of this fragment
*/
public static EncryptFilesFragment newInstance(ArrayList<Uri> uris) {
EncryptFilesFragment frag = new EncryptFilesFragment();
Bundle args = new Bundle();
args.putParcelableArrayList(ARG_URIS, uris);
frag.setArguments(args);
return frag;
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
if ( ! (context instanceof EncryptActivity) ) {
throw new AssertionError(context + " must inherit from EncryptionActivity");
}
}
/**
* Inflate the layout for this fragment
*/
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.encrypt_files_fragment, container, false);
mSelectedFiles = (RecyclerView) view.findViewById(R.id.selected_files_list);
mSelectedFiles.addItemDecoration(new SpacesItemDecoration(
FormattingUtils.dpToPx(getActivity(), 4)));
mSelectedFiles.setHasFixedSize(true);
mSelectedFiles.setLayoutManager(new LinearLayoutManager(getActivity()));
mSelectedFiles.setItemAnimator(new DefaultItemAnimator());
mFilesAdapter = new FilesAdapter(getActivity(), new View.OnClickListener() {
@Override
public void onClick(View v) {
addInputUri();
}
});
mSelectedFiles.setAdapter(mFilesAdapter);
Bundle args = savedInstanceState == null ? getArguments() : savedInstanceState;
mPendingInputUris = new ArrayList<>();
ArrayList<Uri> inputUris = args.getParcelableArrayList(ARG_URIS);
if (inputUris != null) {
mPendingInputUris.addAll(inputUris);
processPendingInputUris();
}
return view;
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
outState.putBoolean(ARG_DELETE_AFTER_ENCRYPT, mDeleteAfterEncrypt);
outState.putBoolean(ARG_USE_ASCII_ARMOR, mUseArmor);
outState.putBoolean(ARG_USE_COMPRESSION, mUseCompression);
outState.putBoolean(ARG_ENCRYPT_FILENAMES, mEncryptFilenames);
outState.putParcelableArrayList(ARG_URIS, mFilesAdapter.getAsArrayList());
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Preferences prefs = Preferences.getPreferences(getActivity());
Bundle args = savedInstanceState == null ? getArguments() : savedInstanceState;
mDeleteAfterEncrypt = args.getBoolean(ARG_DELETE_AFTER_ENCRYPT, false);
if (args.containsKey(ARG_USE_ASCII_ARMOR)) {
mUseArmor = args.getBoolean(ARG_USE_ASCII_ARMOR, false);
} else {
mUseArmor = prefs.getUseArmor();
}
if (args.containsKey(ARG_USE_COMPRESSION)) {
mUseCompression = args.getBoolean(ARG_USE_COMPRESSION, true);
} else {
mUseCompression = prefs.getFilesUseCompression();
}
if (args.containsKey(ARG_ENCRYPT_FILENAMES)) {
mEncryptFilenames = args.getBoolean(ARG_ENCRYPT_FILENAMES, false);
} else {
mEncryptFilenames = prefs.getEncryptFilenames();
}
setHasOptionsMenu(true);
}
private void addInputUri() {
FileHelper.openDocument(EncryptFilesFragment.this, mFilesAdapter.getModelCount() == 0 ?
null : mFilesAdapter.getModelItem(mFilesAdapter.getModelCount() - 1).inputUri,
"*/*", true, REQUEST_CODE_INPUT);
}
public void addInputUri(Intent data) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
mPendingInputUris.add(data.getData());
} else {
if (data.getClipData() != null && data.getClipData().getItemCount() > 0) {
for (int i = 0; i < data.getClipData().getItemCount(); i++) {
Uri uri = data.getClipData().getItemAt(i).getUri();
if (uri != null) {
mPendingInputUris.add(uri);
}
}
} else {
// fallback, try old method to get single uri
mPendingInputUris.add(data.getData());
}
}
// process pending uris
processPendingInputUris();
}
private void processPendingInputUris() {
Iterator<Uri> it = mPendingInputUris.iterator();
while (it.hasNext()) {
Uri inputUri = it.next();
if ( ! checkAndRequestReadPermission(inputUri)) {
// break out, don't process other uris and don't remove this one from queue
break;
}
try {
mFilesAdapter.add(inputUri);
} catch (IOException e) {
String fileName = FileHelper.getFilename(getActivity(), inputUri);
Notify.create(getActivity(),
getActivity().getString(R.string.error_file_added_already, fileName),
Notify.Style.ERROR).show(this);
}
// remove from pending input uris
it.remove();
}
mSelectedFiles.requestFocus();
}
/**
* Request READ_EXTERNAL_STORAGE permission on Android >= 6.0 to read content from "file" Uris.
*
* This method returns true on Android < 6, or if permission is already granted. It
* requests the permission and returns false otherwise.
*
* see https://commonsware.com/blog/2015/10/07/runtime-permissions-files-action-send.html
*/
private boolean checkAndRequestReadPermission(final Uri uri) {
if ( ! ContentResolver.SCHEME_FILE.equals(uri.getScheme())) {
return true;
}
// Additional check due to https://commonsware.com/blog/2015/11/09/you-cannot-hold-nonexistent-permissions.html
if (Build.VERSION.SDK_INT < VERSION_CODES.M) {
return true;
}
if (ContextCompat.checkSelfPermission(getActivity(), Manifest.permission.READ_EXTERNAL_STORAGE)
== PackageManager.PERMISSION_GRANTED) {
return true;
}
requestPermissions(
new String[]{Manifest.permission.READ_EXTERNAL_STORAGE},
REQUEST_PERMISSION_READ_EXTERNAL_STORAGE);
return false;
}
@Override
public void onRequestPermissionsResult(int requestCode,
@NonNull String[] permissions,
@NonNull int[] grantResults) {
if (requestCode != REQUEST_PERMISSION_READ_EXTERNAL_STORAGE) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
return;
}
boolean permissionWasGranted = grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED;
if (permissionWasGranted) {
// permission granted -> restart processing uris
processPendingInputUris();
} else {
Toast.makeText(getActivity(), R.string.error_denied_storage_permission, Toast.LENGTH_LONG).show();
getActivity().setResult(Activity.RESULT_CANCELED);
getActivity().finish();
}
}
@TargetApi(VERSION_CODES.KITKAT)
private void showOutputFileDialog() {
if (mFilesAdapter.getModelCount() != 1) {
throw new IllegalStateException();
}
FilesAdapter.ViewModel model = mFilesAdapter.getModelItem(0);
String targetName =
(mEncryptFilenames ? "1" : FileHelper.getFilename(getActivity(), model.inputUri))
+ (mUseArmor ? Constants.FILE_EXTENSION_ASC : Constants.FILE_EXTENSION_PGP_MAIN);
FileHelper.saveDocument(this, targetName, REQUEST_CODE_OUTPUT);
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
super.onCreateOptionsMenu(menu, inflater);
inflater.inflate(R.menu.encrypt_file_fragment, menu);
menu.findItem(R.id.check_delete_after_encrypt).setChecked(mDeleteAfterEncrypt);
menu.findItem(R.id.check_use_armor).setChecked(mUseArmor);
menu.findItem(R.id.check_enable_compression).setChecked(mUseCompression);
menu.findItem(R.id.check_encrypt_filenames).setChecked(mEncryptFilenames);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.encrypt_save: {
hideKeyboard();
mAfterEncryptAction = AfterEncryptAction.SAVE;
cryptoOperation(new CryptoInputParcel(new Date()));
break;
}
case R.id.encrypt_share: {
hideKeyboard();
mAfterEncryptAction = AfterEncryptAction.SHARE;
cryptoOperation(new CryptoInputParcel(new Date()));
break;
}
case R.id.encrypt_copy: {
hideKeyboard();
mAfterEncryptAction = AfterEncryptAction.COPY;
cryptoOperation(new CryptoInputParcel(new Date()));
break;
}
case R.id.check_use_armor: {
toggleUseArmor(item, !item.isChecked());
break;
}
case R.id.check_delete_after_encrypt: {
item.setChecked(!item.isChecked());
mDeleteAfterEncrypt = item.isChecked();
break;
}
case R.id.check_enable_compression: {
toggleEnableCompression(item, !item.isChecked());
break;
}
case R.id.check_encrypt_filenames: {
toggleEncryptFilenamesCheck(item, !item.isChecked());
break;
}
// case R.id.check_hidden_recipients: {
// mHiddenRecipients = item.isChecked();
// notifyUpdate();
// break;
// }
default: {
return super.onOptionsItemSelected(item);
}
}
return true;
}
@Override
public void onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
// Show save only on Android >= 4.4 (Document Provider)
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
MenuItem save = menu.findItem(R.id.encrypt_save);
save.setVisible(false);
}
}
public void toggleUseArmor(MenuItem item, final boolean useArmor) {
mUseArmor = useArmor;
item.setChecked(useArmor);
Notify.create(getActivity(), useArmor
? R.string.snack_armor_on
: R.string.snack_armor_off,
Notify.LENGTH_LONG, Style.OK, new ActionListener() {
@Override
public void onAction() {
Preferences.getPreferences(getActivity()).setUseArmor(useArmor);
Notify.create(getActivity(), useArmor
? R.string.snack_armor_on
: R.string.snack_armor_off,
Notify.LENGTH_SHORT, Style.OK, null, R.string.btn_saved)
.show(EncryptFilesFragment.this, false);
}
}, R.string.btn_save_default).show(this);
}
public void toggleEnableCompression(MenuItem item, final boolean compress) {
mUseCompression = compress;
item.setChecked(compress);
Notify.create(getActivity(), compress
? R.string.snack_compression_on
: R.string.snack_compression_off,
Notify.LENGTH_LONG, Style.OK, new ActionListener() {
@Override
public void onAction() {
Preferences.getPreferences(getActivity()).setFilesUseCompression(compress);
Notify.create(getActivity(), compress
? R.string.snack_compression_on
: R.string.snack_compression_off,
Notify.LENGTH_SHORT, Style.OK, null, R.string.btn_saved)
.show(EncryptFilesFragment.this, false);
}
}, R.string.btn_save_default).show(this);
}
public void toggleEncryptFilenamesCheck(MenuItem item, final boolean encryptFilenames) {
mEncryptFilenames = encryptFilenames;
item.setChecked(encryptFilenames);
Notify.create(getActivity(), encryptFilenames
? R.string.snack_encrypt_filenames_on
: R.string.snack_encrypt_filenames_off,
Notify.LENGTH_LONG, Style.OK, new ActionListener() {
@Override
public void onAction() {
Preferences.getPreferences(getActivity()).setEncryptFilenames(encryptFilenames);
Notify.create(getActivity(), encryptFilenames
? R.string.snack_encrypt_filenames_on
: R.string.snack_encrypt_filenames_off,
Notify.LENGTH_SHORT, Style.OK, null, R.string.btn_saved)
.show(EncryptFilesFragment.this, false);
}
}, R.string.btn_save_default).show(this);
}
@Override
public void onQueuedOperationSuccess(final SignEncryptResult result) {
super.onQueuedOperationSuccess(result);
hideKeyboard();
// protected by Queueing*Fragment
FragmentActivity activity = getActivity();
if (mDeleteAfterEncrypt) {
// TODO make behavior coherent here
DeleteFileDialogFragment deleteFileDialog =
DeleteFileDialogFragment.newInstance(mFilesAdapter.getAsArrayList());
deleteFileDialog.setOnDeletedListener(new DeleteFileDialogFragment.OnDeletedListener() {
@Override
public void onDeleted() {
if (mAfterEncryptAction == AfterEncryptAction.SHARE) {
// Share encrypted message/file
startActivity(Intent.createChooser(createSendIntent(), getString(R.string.title_share_file)));
} else {
Activity activity = getActivity();
if (activity == null) {
// it's gone, there's nothing we can do here
return;
}
// Save encrypted file
result.createNotify(activity).show();
}
}
});
deleteFileDialog.show(activity.getSupportFragmentManager(), "deleteDialog");
} else {
switch (mAfterEncryptAction) {
case SHARE:
// Share encrypted message/file
startActivity(Intent.createChooser(createSendIntent(), getString(R.string.title_share_file)));
break;
case COPY:
ClipboardManager clipMan = (ClipboardManager) activity.getSystemService(Context.CLIPBOARD_SERVICE);
if (clipMan == null) {
Notify.create(activity, R.string.error_clipboard_copy, Style.ERROR).show();
break;
}
ClipData clip = new ClipData(getString(R.string.label_clip_title),
// make available as application/pgp-encrypted
new String[] { "text/plain" },
new ClipData.Item(mOutputUris.get(0))
);
clipMan.setPrimaryClip(clip);
result.createNotify(activity).show();
break;
case SAVE:
// Encrypted file was saved already, just show notification
result.createNotify(activity).show();
break;
}
}
}
// prepares mOutputUris, either directly and returns false, or indirectly
// which returns true and will call cryptoOperation after mOutputUris has
// been set at a later point.
private boolean prepareOutputStreams() {
switch (mAfterEncryptAction) {
default:
case SHARE:
mOutputUris = new ArrayList<>();
int filenameCounter = 1;
for (FilesAdapter.ViewModel model : mFilesAdapter.mDataset) {
String targetName = (mEncryptFilenames
? String.valueOf(filenameCounter) : FileHelper.getFilename(getActivity(), model.inputUri))
+ (mUseArmor ? Constants.FILE_EXTENSION_ASC : Constants.FILE_EXTENSION_PGP_MAIN);
mOutputUris.add(TemporaryFileProvider.createFile(getActivity(), targetName));
filenameCounter++;
}
return false;
case SAVE:
if (mFilesAdapter.getModelCount() > 1) {
Notify.create(getActivity(), R.string.error_multi_files, Notify.Style.ERROR).show(this);
return true;
}
showOutputFileDialog();
return true;
case COPY:
// nothing to do here, but make sure
if (mFilesAdapter.getModelCount() > 1) {
Notify.create(getActivity(), R.string.error_multi_clipboard, Notify.Style.ERROR).show(this);
return true;
}
mOutputUris = new ArrayList<>();
String targetName = (mEncryptFilenames
? String.valueOf(1) : FileHelper.getFilename(getActivity(),
mFilesAdapter.getModelItem(0).inputUri)) + Constants.FILE_EXTENSION_ASC;
mOutputUris.add(TemporaryFileProvider.createFile(getActivity(), targetName, "text/plain"));
return false;
}
}
public SignEncryptParcel createOperationInput() {
SignEncryptParcel actionsParcel = getCachedActionsParcel();
// we have three cases here: nothing cached, cached except output, fully cached
if (actionsParcel == null) {
// clear output uris for now, they will be created by prepareOutputStreams later
mOutputUris = null;
actionsParcel = createIncompleteCryptoInput();
// this is null if invalid, just return in that case
if (actionsParcel == null) {
return null;
}
cacheActionsParcel(actionsParcel);
}
// if it's incomplete, prepare output streams
if (actionsParcel.isIncomplete()) {
// if this is still null, prepare output streams again
if (mOutputUris == null) {
// this may interrupt the flow, and call us again from onActivityResult
if (prepareOutputStreams()) {
return null;
}
}
actionsParcel.addOutputUris(mOutputUris);
cacheActionsParcel(actionsParcel);
}
return actionsParcel;
}
protected SignEncryptParcel createIncompleteCryptoInput() {
if (mFilesAdapter.getModelCount() == 0) {
Notify.create(getActivity(), R.string.error_no_file_selected, Notify.Style.ERROR).show(this);
return null;
}
// fill values for this action
PgpSignEncryptData data = new PgpSignEncryptData();
if (mUseCompression) {
data.setCompressionAlgorithm(
PgpSecurityConstants.OpenKeychainCompressionAlgorithmTags.USE_DEFAULT);
} else {
data.setCompressionAlgorithm(
PgpSecurityConstants.OpenKeychainCompressionAlgorithmTags.UNCOMPRESSED);
}
data.setHiddenRecipients(mHiddenRecipients);
data.setEnableAsciiArmorOutput(mAfterEncryptAction == AfterEncryptAction.COPY || mUseArmor);
data.setSymmetricEncryptionAlgorithm(
PgpSecurityConstants.OpenKeychainSymmetricKeyAlgorithmTags.USE_DEFAULT);
data.setSignatureHashAlgorithm(
PgpSecurityConstants.OpenKeychainSymmetricKeyAlgorithmTags.USE_DEFAULT);
EncryptActivity encryptActivity = (EncryptActivity) getActivity();
EncryptModeFragment modeFragment = encryptActivity.getModeFragment();
if (modeFragment.isAsymmetric()) {
long[] encryptionKeyIds = modeFragment.getAsymmetricEncryptionKeyIds();
long signingKeyId = modeFragment.getAsymmetricSigningKeyId();
boolean gotEncryptionKeys = (encryptionKeyIds != null && encryptionKeyIds.length > 0);
if (!gotEncryptionKeys && signingKeyId != 0) {
Notify.create(getActivity(), R.string.error_detached_signature, Notify.Style.ERROR).show(this);
return null;
}
if (!gotEncryptionKeys) {
Notify.create(getActivity(), R.string.select_encryption_key, Notify.Style.ERROR).show(this);
return null;
}
data.setEncryptionMasterKeyIds(encryptionKeyIds);
data.setSignatureMasterKeyId(signingKeyId);
} else {
Passphrase passphrase = modeFragment.getSymmetricPassphrase();
if (passphrase == null) {
Notify.create(getActivity(), R.string.passphrases_do_not_match, Notify.Style.ERROR)
.show(this);
return null;
}
if (passphrase.isEmpty()) {
Notify.create(getActivity(), R.string.passphrase_must_not_be_empty, Notify.Style.ERROR)
.show(this);
return null;
}
data.setSymmetricPassphrase(passphrase);
}
SignEncryptParcel parcel = new SignEncryptParcel(data);
parcel.addInputUris(mFilesAdapter.getAsArrayList());
return parcel;
}
private Intent createSendIntent() {
Intent sendIntent;
// file
if (mOutputUris.size() == 1) {
sendIntent = new Intent(Intent.ACTION_SEND);
sendIntent.putExtra(Intent.EXTRA_STREAM, mOutputUris.get(0));
} else {
sendIntent = new Intent(Intent.ACTION_SEND_MULTIPLE);
sendIntent.putExtra(Intent.EXTRA_STREAM, mOutputUris);
}
sendIntent.setType(Constants.MIME_TYPE_ENCRYPTED_ALTERNATE);
EncryptActivity modeInterface = (EncryptActivity) getActivity();
EncryptModeFragment modeFragment = modeInterface.getModeFragment();
if (!modeFragment.isAsymmetric()) {
return sendIntent;
}
String[] encryptionUserIds = modeFragment.getAsymmetricEncryptionUserIds();
if (encryptionUserIds == null) {
return sendIntent;
}
Set<String> users = new HashSet<>();
for (String user : encryptionUserIds) {
OpenPgpUtils.UserId userId = KeyRing.splitUserId(user);
if (userId.email != null) {
users.add(userId.email);
}
}
// pass trough email addresses as extra for email applications
sendIntent.putExtra(Intent.EXTRA_EMAIL, users.toArray(new String[users.size()]));
return sendIntent;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case REQUEST_CODE_INPUT: {
if (resultCode == Activity.RESULT_OK && data != null) {
addInputUri(data);
}
return;
}
case REQUEST_CODE_OUTPUT: {
// This happens after output file was selected, so start our operation
if (resultCode == Activity.RESULT_OK && data != null) {
mOutputUris = new ArrayList<>(1);
mOutputUris.add(data.getData());
// make sure this is correct at this point
mAfterEncryptAction = AfterEncryptAction.SAVE;
cryptoOperation(new CryptoInputParcel(new Date()));
} else if (resultCode == Activity.RESULT_CANCELED) {
onCryptoOperationCancelled();
}
return;
}
default: {
super.onActivityResult(requestCode, resultCode, data);
break;
}
}
}
public static class FilesAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private Activity mActivity;
private List<ViewModel> mDataset;
private View.OnClickListener mFooterOnClickListener;
private static final int TYPE_FOOTER = 0;
private static final int TYPE_ITEM = 1;
public static class ViewModel {
Uri inputUri;
Bitmap thumbnail;
String filename;
long fileSize;
ViewModel(Context context, Uri inputUri) {
this.inputUri = inputUri;
int px = FormattingUtils.dpToPx(context, 48);
this.thumbnail = FileHelper.getThumbnail(context, inputUri, new Point(px, px));
this.filename = FileHelper.getFilename(context, inputUri);
this.fileSize = FileHelper.getFileSize(context, inputUri);
}
/**
* Depends on inputUri only
*/
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
ViewModel viewModel = (ViewModel) o;
return !(inputUri != null ? !inputUri.equals(viewModel.inputUri)
: viewModel.inputUri != null);
}
/**
* Depends on inputUri only
*/
@Override
public int hashCode() {
return inputUri != null ? inputUri.hashCode() : 0;
}
@Override
public String toString() {
return inputUri.toString();
}
}
// Provide a reference to the views for each data item
// Complex data items may need more than one view per item, and
// you provide access to all the views for a data item in a view holder
class ViewHolder extends RecyclerView.ViewHolder {
public TextView filename;
public TextView fileSize;
public View removeButton;
public ImageView thumbnail;
public ViewHolder(View itemView) {
super(itemView);
filename = (TextView) itemView.findViewById(R.id.filename);
fileSize = (TextView) itemView.findViewById(R.id.filesize);
removeButton = itemView.findViewById(R.id.action_remove_file_from_list);
thumbnail = (ImageView) itemView.findViewById(R.id.thumbnail);
}
}
class FooterHolder extends RecyclerView.ViewHolder {
public Button mAddButton;
public FooterHolder(View itemView) {
super(itemView);
mAddButton = (Button) itemView.findViewById(R.id.file_list_entry_add);
}
}
// Provide a suitable constructor (depends on the kind of dataset)
public FilesAdapter(Activity activity, View.OnClickListener onFooterClickListener) {
mActivity = activity;
mDataset = new ArrayList<>();
mFooterOnClickListener = onFooterClickListener;
}
// Create new views (invoked by the layout manager)
@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if (viewType == TYPE_FOOTER) {
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.file_list_entry_add, parent, false);
return new FooterHolder(v);
} else {
//inflate your layout and pass it to view holder
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.file_list_entry, parent, false);
return new ViewHolder(v);
}
}
// Replace the contents of a view (invoked by the layout manager)
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, final int position) {
if (holder instanceof FooterHolder) {
FooterHolder thisHolder = (FooterHolder) holder;
thisHolder.mAddButton.setOnClickListener(mFooterOnClickListener);
} else if (holder instanceof ViewHolder) {
ViewHolder thisHolder = (ViewHolder) holder;
// - get element from your dataset at this position
// - replace the contents of the view with that element
final ViewModel model = mDataset.get(position);
thisHolder.filename.setText(model.filename);
if (model.fileSize == -1) {
thisHolder.fileSize.setText("");
} else {
thisHolder.fileSize.setText(FileHelper.readableFileSize(model.fileSize));
}
thisHolder.removeButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
remove(model);
}
});
if (model.thumbnail != null) {
thisHolder.thumbnail.setImageBitmap(model.thumbnail);
} else {
thisHolder.thumbnail.setImageResource(R.drawable.ic_doc_generic_am);
}
}
}
// Return the size of your dataset (invoked by the layout manager)
@Override
public int getItemCount() {
// one extra for the footer!
return mDataset.size() +1;
}
@Override
public int getItemViewType(int position) {
if (isPositionFooter(position)) {
return TYPE_FOOTER;
} else {
return TYPE_ITEM;
}
}
private boolean isPositionFooter(int position) {
return position == mDataset.size();
}
public void add(Uri inputUri) throws IOException {
ViewModel newModel = new ViewModel(mActivity, inputUri);
if (mDataset.contains(newModel)) {
throw new IOException("Already added!");
}
mDataset.add(newModel);
notifyItemInserted(mDataset.size() - 1);
}
public void addAll(ArrayList<Uri> inputUris) {
if (inputUris != null) {
int startIndex = mDataset.size();
for (Uri inputUri : inputUris) {
ViewModel newModel = new ViewModel(mActivity, inputUri);
if (mDataset.contains(newModel)) {
Log.e(Constants.TAG, "Skipped duplicate " + inputUri);
} else {
mDataset.add(newModel);
}
}
notifyItemRangeInserted(startIndex, mDataset.size() - startIndex);
}
}
public int getModelCount() {
return mDataset.size();
}
public ViewModel getModelItem(int position) {
return mDataset.get(position);
}
public void remove(ViewModel model) {
int position = mDataset.indexOf(model);
mDataset.remove(position);
notifyItemRemoved(position);
}
public ArrayList<Uri> getAsArrayList() {
ArrayList<Uri> uris = new ArrayList<>();
for (ViewModel model : mDataset) {
uris.add(model.inputUri);
}
return uris;
}
}
}