diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DisplayTextFragment.java')
-rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DisplayTextFragment.java | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DisplayTextFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DisplayTextFragment.java new file mode 100644 index 000000000..cd75e2bc3 --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/DisplayTextFragment.java @@ -0,0 +1,189 @@ +/* + * 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.content.Intent; +import android.os.Bundle; +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.TextView; + +import org.sufficientlysecure.keychain.Constants; +import org.sufficientlysecure.keychain.R; +import org.sufficientlysecure.keychain.compatibility.ClipboardReflection; +import org.sufficientlysecure.keychain.operations.results.DecryptVerifyResult; +import org.sufficientlysecure.keychain.pgp.PgpDecryptVerifyInputParcel; +import org.sufficientlysecure.keychain.ui.util.Notify; +import org.sufficientlysecure.keychain.util.ShareHelper; + +import java.io.UnsupportedEncodingException; + +public class DisplayTextFragment extends DecryptFragment { + public static final String ARG_CIPHERTEXT = "ciphertext"; + public static final String ARG_SHOW_MENU = "show_menu"; + + // view + private TextView mText; + + // model + private String mCiphertext; + private boolean mShowMenuOptions; + + public static DisplayTextFragment newInstance(String ciphertext) { + DisplayTextFragment frag = new DisplayTextFragment(); + + Bundle args = new Bundle(); + args.putString(ARG_CIPHERTEXT, ciphertext); + + frag.setArguments(args); + + return frag; + } + + /** + * Inflate the layout for this fragment + */ + @Override + public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { + View view = inflater.inflate(R.layout.decrypt_text_fragment, container, false); + mText = (TextView) view.findViewById(R.id.decrypt_text_plaintext); + + return view; + } + + /** + * Create Intent Chooser but exclude decrypt activites + */ + private Intent sendWithChooserExcludingDecrypt(String text) { + Intent prototype = createSendIntent(text); + String title = getString(R.string.title_share_message); + + // we don't want to decrypt the decrypted, no inception ;) + String[] blacklist = new String[]{ + Constants.PACKAGE_NAME + ".ui.DecryptTextActivity", + "org.thialfihar.android.apg.ui.DecryptActivity" + }; + + return new ShareHelper(getActivity()).createChooserExcluding(prototype, title, blacklist); + } + + private Intent createSendIntent(String text) { + Intent sendIntent = new Intent(Intent.ACTION_SEND); + sendIntent.putExtra(Intent.EXTRA_TEXT, text); + sendIntent.setType("text/plain"); + return sendIntent; + } + + private void copyToClipboard(String text) { + ClipboardReflection.copyToClipboard(getActivity(), text); + Notify.create(getActivity(), R.string.text_copied_to_clipboard, Notify.Style.OK).show(); + } + + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + + setHasOptionsMenu(true); + + Bundle args = savedInstanceState == null ? getArguments() : savedInstanceState; + mCiphertext = args.getString(ARG_CIPHERTEXT); + mShowMenuOptions = args.getBoolean(ARG_SHOW_MENU, false); + + if (savedInstanceState == null) { + cryptoOperation(); + } + + } + + @Override + public void onSaveInstanceState(Bundle outState) { + super.onSaveInstanceState(outState); + + outState.putString(ARG_CIPHERTEXT, mCiphertext); + outState.putBoolean(ARG_SHOW_MENU, mShowMenuOptions); + // no need to save the decrypted text, it's in the textview + + } + + @Override + public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { + super.onCreateOptionsMenu(menu, inflater); + if (mShowMenuOptions) { + inflater.inflate(R.menu.decrypt_menu, menu); + } + } + + @Override + public boolean onOptionsItemSelected(MenuItem item) { + switch (item.getItemId()) { + case R.id.decrypt_share: { + startActivity(sendWithChooserExcludingDecrypt(mText.getText().toString())); + break; + } + case R.id.decrypt_copy: { + copyToClipboard(mText.getText().toString()); + break; + } + default: { + return super.onOptionsItemSelected(item); + } + } + + return true; + } + + @Override + protected PgpDecryptVerifyInputParcel createOperationInput() { + PgpDecryptVerifyInputParcel input = new PgpDecryptVerifyInputParcel(mCiphertext.getBytes()); + input.setAllowSymmetricDecryption(true); + return input; + } + + @Override + protected void onVerifyLoaded(boolean hideErrorOverlay) { + mShowMenuOptions = hideErrorOverlay; + getActivity().supportInvalidateOptionsMenu(); + } + + @Override + protected void onCryptoOperationSuccess(DecryptVerifyResult result) { + + byte[] decryptedMessage = result.getOutputBytes(); + String displayMessage; + if (result.getCharset() != null) { + try { + displayMessage = new String(decryptedMessage, result.getCharset()); + } catch (UnsupportedEncodingException e) { + // if we can't decode properly, just fall back to utf-8 + displayMessage = new String(decryptedMessage); + } + } else { + displayMessage = new String(decryptedMessage); + } + mText.setText(displayMessage); + + // display signature result in activity + loadVerifyResult(result); + + } + +} |