open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/EncryptFileFragment.java
Dominik Schürmann f4802157dd Optimize imports
2014-08-05 22:46:00 +02:00

310 lines
11 KiB
Java

/*
* Copyright (C) 2014 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 android.annotation.TargetApi;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.Point;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.helper.FileHelper;
import org.sufficientlysecure.keychain.helper.OtherHelper;
import org.sufficientlysecure.keychain.provider.TemporaryStorageProvider;
import java.io.File;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
public class EncryptFileFragment extends Fragment implements EncryptActivityInterface.UpdateListener {
public static final String ARG_URIS = "uris";
private static final int REQUEST_CODE_INPUT = 0x00007003;
private static final int REQUEST_CODE_OUTPUT = 0x00007007;
private EncryptActivityInterface mEncryptInterface;
// view
private View mAddView;
private View mShareFile;
private View mEncryptFile;
private ListView mSelectedFiles;
private SelectedFilesAdapter mAdapter = new SelectedFilesAdapter();
private final Map<Uri, Bitmap> thumbnailCache = new HashMap<Uri, Bitmap>();
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
mEncryptInterface = (EncryptActivityInterface) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString() + " must implement EncryptActivityInterface");
}
}
/**
* Inflate the layout for this fragment
*/
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.encrypt_file_fragment, container, false);
mEncryptFile = view.findViewById(R.id.action_encrypt_file);
mEncryptFile.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
encryptClicked(false);
}
});
mShareFile = view.findViewById(R.id.action_encrypt_share);
mShareFile.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
encryptClicked(true);
}
});
mAddView = inflater.inflate(R.layout.file_list_entry_add, null);
mAddView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
addInputUri();
}
});
mSelectedFiles = (ListView) view.findViewById(R.id.selected_files_list);
mSelectedFiles.addFooterView(mAddView);
mSelectedFiles.setAdapter(mAdapter);
return view;
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
addInputUris(getArguments().<Uri>getParcelableArrayList(ARG_URIS));
}
private void addInputUri() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
FileHelper.openDocument(EncryptFileFragment.this, "*/*", true, REQUEST_CODE_INPUT);
} else {
FileHelper.openFile(EncryptFileFragment.this, mEncryptInterface.getInputUris().isEmpty() ?
null : mEncryptInterface.getInputUris().get(mEncryptInterface.getInputUris().size() - 1),
"*/*", REQUEST_CODE_INPUT);
}
}
private void addInputUris(List<Uri> uris) {
if (uris != null) {
for (Uri uri : uris) {
addInputUri(uri);
}
}
}
private void addInputUri(Uri inputUri) {
if (inputUri == null) {
return;
}
mEncryptInterface.getInputUris().add(inputUri);
mEncryptInterface.notifyUpdate();
mSelectedFiles.requestFocus();
/**
* We hide the encrypt to file button if multiple files are selected.
*
* With Android L it will be possible to select a target directory for multiple files, so we might want to
* change this later
*/
if (mEncryptInterface.getInputUris().size() > 1) {
mEncryptFile.setVisibility(View.GONE);
} else {
mEncryptFile.setVisibility(View.VISIBLE);
}
}
private void delInputUri(int position) {
mEncryptInterface.getInputUris().remove(position);
mEncryptInterface.notifyUpdate();
mSelectedFiles.requestFocus();
if (mEncryptInterface.getInputUris().size() > 1) {
mEncryptFile.setVisibility(View.GONE);
} else {
mEncryptFile.setVisibility(View.VISIBLE);
}
}
private void showOutputFileDialog() {
if (mEncryptInterface.getInputUris().size() > 1 || mEncryptInterface.getInputUris().isEmpty()) {
throw new IllegalStateException();
}
Uri inputUri = mEncryptInterface.getInputUris().get(0);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
File file = new File(inputUri.getPath());
File parentDir = file.exists() ? file.getParentFile() : Constants.Path.APP_DIR;
String targetName = FileHelper.getFilename(getActivity(), inputUri) +
(mEncryptInterface.isUseArmor() ? ".asc" : ".gpg");
File targetFile = new File(parentDir, targetName);
FileHelper.saveFile(this, getString(R.string.title_encrypt_to_file),
getString(R.string.specify_file_to_encrypt_to), targetFile, REQUEST_CODE_OUTPUT);
} else {
FileHelper.saveDocument(this, "*/*", FileHelper.getFilename(getActivity(), inputUri) +
(mEncryptInterface.isUseArmor() ? ".asc" : ".gpg"), REQUEST_CODE_OUTPUT);
}
}
private void encryptClicked(boolean share) {
if (share) {
mEncryptInterface.getOutputUris().clear();
for (Uri uri : mEncryptInterface.getInputUris()) {
String targetName = FileHelper.getFilename(getActivity(), uri) +
(mEncryptInterface.isUseArmor() ? ".asc" : ".gpg");
mEncryptInterface.getOutputUris().add(TemporaryStorageProvider.createFile(getActivity(), targetName));
}
mEncryptInterface.startEncrypt(true);
} else if (mEncryptInterface.getInputUris().size() == 1) {
showOutputFileDialog();
}
}
@TargetApi(Build.VERSION_CODES.KITKAT)
public boolean handleClipData(Intent data) {
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) addInputUri(uri);
}
return true;
}
return false;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (requestCode) {
case REQUEST_CODE_INPUT: {
if (resultCode == Activity.RESULT_OK && data != null) {
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT || !handleClipData(data)) {
addInputUri(data.getData());
}
}
return;
}
case REQUEST_CODE_OUTPUT: {
// This happens after output file was selected, so start our operation
if (resultCode == Activity.RESULT_OK && data != null) {
mEncryptInterface.getOutputUris().clear();
mEncryptInterface.getOutputUris().add(data.getData());
mEncryptInterface.notifyUpdate();
mEncryptInterface.startEncrypt(false);
}
return;
}
default: {
super.onActivityResult(requestCode, resultCode, data);
break;
}
}
}
@Override
public void onNotifyUpdate() {
// Clear cache if needed
for (Uri uri : new HashSet<Uri>(thumbnailCache.keySet())) {
if (!mEncryptInterface.getInputUris().contains(uri)) {
thumbnailCache.remove(uri);
}
}
mAdapter.notifyDataSetChanged();
}
private class SelectedFilesAdapter extends BaseAdapter {
@Override
public int getCount() {
return mEncryptInterface.getInputUris().size();
}
@Override
public Object getItem(int position) {
return mEncryptInterface.getInputUris().get(position);
}
@Override
public long getItemId(int position) {
return getItem(position).hashCode();
}
@Override
public View getView(final int position, View convertView, ViewGroup parent) {
Uri inputUri = mEncryptInterface.getInputUris().get(position);
View view;
if (convertView == null) {
view = getActivity().getLayoutInflater().inflate(R.layout.file_list_entry, null);
} else {
view = convertView;
}
((TextView) view.findViewById(R.id.filename)).setText(FileHelper.getFilename(getActivity(), inputUri));
long size = FileHelper.getFileSize(getActivity(), inputUri);
if (size == -1) {
((TextView) view.findViewById(R.id.filesize)).setText("");
} else {
((TextView) view.findViewById(R.id.filesize)).setText(FileHelper.readableFileSize(size));
}
view.findViewById(R.id.action_remove_file_from_list).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
delInputUri(position);
}
});
int px = OtherHelper.dpToPx(getActivity(), 48);
if (!thumbnailCache.containsKey(inputUri)) {
thumbnailCache.put(inputUri, FileHelper.getThumbnail(getActivity(), inputUri, new Point(px, px)));
}
Bitmap bitmap = thumbnailCache.get(inputUri);
if (bitmap != null) {
((ImageView) view.findViewById(R.id.thumbnail)).setImageBitmap(bitmap);
} else {
((ImageView) view.findViewById(R.id.thumbnail)).setImageResource(R.drawable.ic_doc_generic_am);
}
return view;
}
}
}