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);
+
+    }
+
+}