refactor omemo fingerprint UI code

5 files changed, 250 insertions, 199 deletions

diff --git a/src/main/java/eu/siacs/conversations/OmemoActivity.java b/src/main/java/eu/siacs/conversations/OmemoActivity.java
new file mode 100644
index 00000000..27f1dcf6
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/OmemoActivity.java
@@ -0,0 +1,237 @@
+package eu.siacs.conversations;
+
+import android.app.AlertDialog;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.view.ContextMenu;
+import android.view.MenuItem;
+import android.view.View;
+import android.widget.CompoundButton;
+import android.widget.ImageView;
+import android.widget.LinearLayout;
+import android.widget.TextView;
+import android.widget.Toast;
+
+import java.security.cert.X509Certificate;
+
+import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
+import eu.siacs.conversations.entities.Account;
+import eu.siacs.conversations.ui.XmppActivity;
+import eu.siacs.conversations.ui.widget.Switch;
+import eu.siacs.conversations.utils.CryptoHelper;
+
+
+public abstract class OmemoActivity extends XmppActivity {
+
+    private Account mSelectedAccount;
+    private String mSelectedFingerprint;
+
+    @Override
+    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenu.ContextMenuInfo menuInfo) {
+        super.onCreateContextMenu(menu,v,menuInfo);
+        Object account = v.getTag(R.id.TAG_ACCOUNT);
+        Object fingerprint = v.getTag(R.id.TAG_FINGERPRINT);
+        if (account != null && fingerprint != null && account instanceof Account && fingerprint instanceof String) {
+            getMenuInflater().inflate(R.menu.omemo_key_context, menu);
+            this.mSelectedAccount = (Account) account;
+            this.mSelectedFingerprint = (String) fingerprint;
+        }
+    }
+
+    @Override
+    public boolean onContextItemSelected(MenuItem item) {
+        switch (item.getItemId()) {
+            case R.id.purge_omemo_key:
+                showPurgeKeyDialog(mSelectedAccount,mSelectedFingerprint);
+                break;
+            case R.id.copy_omemo_key:
+                copyOmemoFingerprint(mSelectedFingerprint);
+                break;
+        }
+        return true;
+    }
+
+    protected void copyOmemoFingerprint(String fingerprint) {
+        if (copyTextToClipboard(CryptoHelper.prettifyFingerprint(fingerprint.substring(2)), R.string.omemo_fingerprint)) {
+            Toast.makeText(
+                    this,
+                    R.string.toast_message_omemo_fingerprint,
+                    Toast.LENGTH_SHORT).show();
+        }
+    }
+
+    protected boolean addFingerprintRow(LinearLayout keys, final Account account, final String fingerprint, boolean highlight) {
+        final FingerprintStatus status = account.getAxolotlService().getFingerprintTrust(fingerprint);
+        return status != null && addFingerprintRowWithListeners(keys, account, fingerprint, highlight, status, true, true, new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+                account.getAxolotlService().setFingerprintTrust(fingerprint, FingerprintStatus.createActive(isChecked));
+            }
+        });
+    }
+
+    protected boolean addFingerprintRowWithListeners(LinearLayout keys, final Account account,
+                                                     final String fingerprint,
+                                                     boolean highlight,
+                                                     FingerprintStatus status,
+                                                     boolean showTag,
+                                                     boolean undecidedNeedEnablement,
+                                                     CompoundButton.OnCheckedChangeListener
+                                                             onCheckedChangeListener) {
+        if (status.isCompromised()) {
+            return false;
+        }
+        View view = getLayoutInflater().inflate(R.layout.contact_key, keys, false);
+        TextView key = (TextView) view.findViewById(R.id.key);
+        TextView keyType = (TextView) view.findViewById(R.id.key_type);
+        if (Config.X509_VERIFICATION && status.getTrust() == FingerprintStatus.Trust.VERIFIED_X509) {
+            View.OnClickListener listener = new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    showX509Certificate(account,fingerprint);
+                }
+            };
+            key.setOnClickListener(listener);
+            keyType.setOnClickListener(listener);
+        }
+        Switch trustToggle = (Switch) view.findViewById(R.id.tgl_trust);
+        ImageView verifiedFingerprintSymbol = (ImageView) view.findViewById(R.id.verified_fingerprint);
+        trustToggle.setVisibility(View.VISIBLE);
+        registerForContextMenu(view);
+        view.setTag(R.id.TAG_ACCOUNT,account);
+        view.setTag(R.id.TAG_FINGERPRINT,fingerprint);
+        boolean x509 = Config.X509_VERIFICATION && status.getTrust() == FingerprintStatus.Trust.VERIFIED_X509;
+        final View.OnClickListener toast;
+        trustToggle.setChecked(status.isTrusted(), false);
+
+        if (status.isActive()){
+            key.setTextColor(getPrimaryTextColor());
+            keyType.setTextColor(getSecondaryTextColor());
+            if (status.isVerified()) {
+                verifiedFingerprintSymbol.setVisibility(View.VISIBLE);
+                trustToggle.setVisibility(View.GONE);
+                verifiedFingerprintSymbol.setOnClickListener(new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        replaceToast(getString(R.string.this_device_has_been_verified), false);
+                    }
+                });
+                toast = null;
+            } else {
+                verifiedFingerprintSymbol.setVisibility(View.GONE);
+                trustToggle.setVisibility(View.VISIBLE);
+                trustToggle.setOnCheckedChangeListener(onCheckedChangeListener);
+                if (status.getTrust() == FingerprintStatus.Trust.UNDECIDED && undecidedNeedEnablement) {
+                    trustToggle.setOnClickListener(new View.OnClickListener() {
+                        @Override
+                        public void onClick(View v) {
+                            account.getAxolotlService().setFingerprintTrust(fingerprint,FingerprintStatus.createActive(false));
+                            v.setEnabled(true);
+                            v.setOnClickListener(null);
+                        }
+                    });
+                    trustToggle.setEnabled(false);
+                } else {
+                    trustToggle.setOnClickListener(null);
+                    trustToggle.setEnabled(true);
+                }
+                toast = new View.OnClickListener() {
+                    @Override
+                    public void onClick(View v) {
+                        hideToast();
+                    }
+                };
+            }
+        } else {
+            key.setTextColor(getTertiaryTextColor());
+            keyType.setTextColor(getTertiaryTextColor());
+            toast = new View.OnClickListener() {
+                @Override
+                public void onClick(View v) {
+                    replaceToast(getString(R.string.this_device_is_no_longer_in_use), false);
+                }
+            };
+            if (status.isVerified()) {
+                trustToggle.setVisibility(View.GONE);
+                verifiedFingerprintSymbol.setVisibility(View.VISIBLE);
+                verifiedFingerprintSymbol.setOnClickListener(toast);
+            } else {
+                trustToggle.setVisibility(View.VISIBLE);
+                verifiedFingerprintSymbol.setVisibility(View.GONE);
+                trustToggle.setOnClickListener(null);
+                trustToggle.setEnabled(false);
+                trustToggle.setOnClickListener(toast);
+            }
+        }
+
+        view.setOnClickListener(toast);
+        key.setOnClickListener(toast);
+        keyType.setOnClickListener(toast);
+        if (showTag) {
+            keyType.setText(getString(x509 ? R.string.omemo_fingerprint_x509 : R.string.omemo_fingerprint));
+        } else {
+            keyType.setVisibility(View.GONE);
+        }
+        if (highlight) {
+            keyType.setTextColor(getResources().getColor(R.color.accent));
+            keyType.setText(getString(x509 ? R.string.omemo_fingerprint_x509_selected_message : R.string.omemo_fingerprint_selected_message));
+        } else {
+            keyType.setText(getString(x509 ? R.string.omemo_fingerprint_x509 : R.string.omemo_fingerprint));
+        }
+
+        key.setText(CryptoHelper.prettifyFingerprint(fingerprint.substring(2)));
+
+        keys.addView(view);
+        return true;
+    }
+
+    public void showPurgeKeyDialog(final Account account, final String fingerprint) {
+        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setTitle(getString(R.string.purge_key));
+        builder.setIconAttribute(android.R.attr.alertDialogIcon);
+        builder.setMessage(getString(R.string.purge_key_desc_part1)
+                + "\n\n" + CryptoHelper.prettifyFingerprint(fingerprint.substring(2))
+                + "\n\n" + getString(R.string.purge_key_desc_part2));
+        builder.setNegativeButton(getString(R.string.cancel), null);
+        builder.setPositiveButton(getString(R.string.purge_key),
+                new DialogInterface.OnClickListener() {
+                    @Override
+                    public void onClick(DialogInterface dialog, int which) {
+                        account.getAxolotlService().purgeKey(fingerprint);
+                        refreshUi();
+                    }
+                });
+        builder.create().show();
+    }
+
+    private void showX509Certificate(Account account, String fingerprint) {
+        X509Certificate x509Certificate = account.getAxolotlService().getFingerprintCertificate(fingerprint);
+        if (x509Certificate != null) {
+            showCertificateInformationDialog(CryptoHelper.extractCertificateInformation(x509Certificate));
+        } else {
+            Toast.makeText(this,R.string.certificate_not_found, Toast.LENGTH_SHORT).show();
+        }
+    }
+
+    private void showCertificateInformationDialog(Bundle bundle) {
+        View view = getLayoutInflater().inflate(R.layout.certificate_information, null);
+        final String not_available = getString(R.string.certicate_info_not_available);
+        TextView subject_cn = (TextView) view.findViewById(R.id.subject_cn);
+        TextView subject_o = (TextView) view.findViewById(R.id.subject_o);
+        TextView issuer_cn = (TextView) view.findViewById(R.id.issuer_cn);
+        TextView issuer_o = (TextView) view.findViewById(R.id.issuer_o);
+        TextView sha1 = (TextView) view.findViewById(R.id.sha1);
+
+        subject_cn.setText(bundle.getString("subject_cn", not_available));
+        subject_o.setText(bundle.getString("subject_o", not_available));
+        issuer_cn.setText(bundle.getString("issuer_cn", not_available));
+        issuer_o.setText(bundle.getString("issuer_o", not_available));
+        sha1.setText(bundle.getString("sha1", not_available));
+
+        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setTitle(R.string.certificate_information);
+        builder.setView(view);
+        builder.setPositiveButton(R.string.ok, null);
+        builder.create().show();
+    }
+}
diff --git a/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java b/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java
index 9653ea05..a567f151 100644
--- a/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/ContactDetailsActivity.java
@@ -36,15 +36,14 @@ import java.security.cert.X509Certificate;
 import java.util.List;
 
 import eu.siacs.conversations.Config;
+import eu.siacs.conversations.OmemoActivity;
 import eu.siacs.conversations.R;
 import eu.siacs.conversations.crypto.PgpEngine;
 import eu.siacs.conversations.crypto.axolotl.AxolotlService;
 import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
-import eu.siacs.conversations.crypto.axolotl.XmppAxolotlSession;
 import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.entities.Contact;
 import eu.siacs.conversations.entities.ListItem;
-import eu.siacs.conversations.entities.Presence;
 import eu.siacs.conversations.services.XmppConnectionService.OnAccountUpdate;
 import eu.siacs.conversations.services.XmppConnectionService.OnRosterUpdate;
 import eu.siacs.conversations.utils.CryptoHelper;
@@ -55,7 +54,7 @@ import eu.siacs.conversations.xmpp.XmppConnection;
 import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 import eu.siacs.conversations.xmpp.jid.Jid;
 
-public class ContactDetailsActivity extends XmppActivity implements OnAccountUpdate, OnRosterUpdate, OnUpdateBlocklist, OnKeyStatusUpdated {
+public class ContactDetailsActivity extends OmemoActivity implements OnAccountUpdate, OnRosterUpdate, OnUpdateBlocklist, OnKeyStatusUpdated {
 	public static final String ACTION_VIEW_CONTACT = "view_contact";
 
 	private Contact contact;
@@ -448,12 +447,7 @@ public class ContactDetailsActivity extends XmppActivity implements OnAccountUpd
 		if (Config.supportOmemo()) {
 			for (final String fingerprint : contact.getAccount().getAxolotlService().getFingerprintsForContact(contact)) {
 				boolean highlight = fingerprint.equals(messageFingerprint);
-				hasKeys |= addFingerprintRow(keys, contact.getAccount(), fingerprint, highlight, new OnClickListener() {
-					@Override
-					public void onClick(View v) {
-						onOmemoKeyClicked(contact.getAccount(), fingerprint);
-					}
-				});
+				hasKeys |= addFingerprintRow(keys, contact.getAccount(), fingerprint, highlight);
 			}
 		}
 		if (Config.supportOpenPgp() && contact.getPgpKeyId() != 0) {
@@ -509,40 +503,6 @@ public class ContactDetailsActivity extends XmppActivity implements OnAccountUpd
 		}
 	}
 
-	private void onOmemoKeyClicked(Account account, String fingerprint) {
-		FingerprintStatus status = account.getAxolotlService().getFingerprintTrust(fingerprint);
-		if (Config.X509_VERIFICATION && status != null && status.getTrust() == FingerprintStatus.Trust.VERIFIED_X509) {
-			X509Certificate x509Certificate = account.getAxolotlService().getFingerprintCertificate(fingerprint);
-			if (x509Certificate != null) {
-				showCertificateInformationDialog(CryptoHelper.extractCertificateInformation(x509Certificate));
-			} else {
-				Toast.makeText(this,R.string.certificate_not_found, Toast.LENGTH_SHORT).show();
-			}
-		}
-	}
-
-	private void showCertificateInformationDialog(Bundle bundle) {
-		View view = getLayoutInflater().inflate(R.layout.certificate_information, null);
-		final String not_available = getString(R.string.certicate_info_not_available);
-		TextView subject_cn = (TextView) view.findViewById(R.id.subject_cn);
-		TextView subject_o = (TextView) view.findViewById(R.id.subject_o);
-		TextView issuer_cn = (TextView) view.findViewById(R.id.issuer_cn);
-		TextView issuer_o = (TextView) view.findViewById(R.id.issuer_o);
-		TextView sha1 = (TextView) view.findViewById(R.id.sha1);
-
-		subject_cn.setText(bundle.getString("subject_cn", not_available));
-		subject_o.setText(bundle.getString("subject_o", not_available));
-		issuer_cn.setText(bundle.getString("issuer_cn", not_available));
-		issuer_o.setText(bundle.getString("issuer_o", not_available));
-		sha1.setText(bundle.getString("sha1", not_available));
-
-		AlertDialog.Builder builder = new AlertDialog.Builder(this);
-		builder.setTitle(R.string.certificate_information);
-		builder.setView(view);
-		builder.setPositiveButton(R.string.ok, null);
-		builder.create().show();
-	}
-
 	protected void confirmToDeleteFingerprint(final String fingerprint) {
 		AlertDialog.Builder builder = new AlertDialog.Builder(this);
 		builder.setTitle(R.string.delete_fingerprint);
@@ -563,7 +523,6 @@ public class ContactDetailsActivity extends XmppActivity implements OnAccountUpd
 		builder.create().show();
 	}
 
-	@Override
 	public void onBackendConnected() {
 		if ((accountJid != null) && (contactJid != null)) {
 			Account account = xmppConnectionService
diff --git a/src/main/java/eu/siacs/conversations/ui/EditAccountActivity.java b/src/main/java/eu/siacs/conversations/ui/EditAccountActivity.java
index cd35ffb5..0f38173b 100644
--- a/src/main/java/eu/siacs/conversations/ui/EditAccountActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/EditAccountActivity.java
@@ -41,6 +41,7 @@ import java.util.Set;
 import java.util.concurrent.atomic.AtomicInteger;
 
 import eu.siacs.conversations.Config;
+import eu.siacs.conversations.OmemoActivity;
 import eu.siacs.conversations.R;
 import eu.siacs.conversations.crypto.axolotl.AxolotlService;
 import eu.siacs.conversations.entities.Account;
@@ -59,7 +60,7 @@ import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 import eu.siacs.conversations.xmpp.jid.Jid;
 import eu.siacs.conversations.xmpp.pep.Avatar;
 
-public class EditAccountActivity extends XmppActivity implements OnAccountUpdate,
+public class EditAccountActivity extends OmemoActivity implements OnAccountUpdate,
 		OnKeyStatusUpdated, OnCaptchaRequested, KeyChainAliasCallback, XmppConnectionService.OnShowErrorToast, XmppConnectionService.OnMamPreferencesFetched {
 
 	private static final int REQUEST_DATA_SAVER = 0x37af244;
@@ -635,7 +636,6 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 		super.onSaveInstanceState(savedInstanceState);
 	}
 
-	@Override
 	protected void onBackendConnected() {
 		boolean init = true;
 		if (mSavedInstanceAccount != null) {
@@ -884,13 +884,7 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 
 							@Override
 							public void onClick(final View v) {
-
-								if (copyTextToClipboard(ownAxolotlFingerprint.substring(2), R.string.omemo_fingerprint)) {
-									Toast.makeText(
-											EditAccountActivity.this,
-											R.string.toast_message_omemo_fingerprint,
-											Toast.LENGTH_SHORT).show();
-								}
+								copyOmemoFingerprint(ownAxolotlFingerprint);
 							}
 						});
 				if (Config.SHOW_REGENERATE_AXOLOTL_KEYS_BUTTON) {
@@ -915,7 +909,7 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 					continue;
 				}
 				boolean highlight = fingerprint.equals(messageFingerprint);
-				hasKeys |= addFingerprintRow(keys, mAccount, fingerprint, highlight, null);
+				hasKeys |= addFingerprintRow(keys, mAccount, fingerprint, highlight);
 			}
 			if (hasKeys && Config.supportOmemo()) {
 				keysCard.setVisibility(View.VISIBLE);
diff --git a/src/main/java/eu/siacs/conversations/ui/TrustKeysActivity.java b/src/main/java/eu/siacs/conversations/ui/TrustKeysActivity.java
index f5a4789f..76081a96 100644
--- a/src/main/java/eu/siacs/conversations/ui/TrustKeysActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/TrustKeysActivity.java
@@ -18,6 +18,7 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
+import eu.siacs.conversations.OmemoActivity;
 import eu.siacs.conversations.R;
 import eu.siacs.conversations.crypto.axolotl.AxolotlService;
 import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
@@ -28,7 +29,7 @@ import eu.siacs.conversations.xmpp.OnKeyStatusUpdated;
 import eu.siacs.conversations.xmpp.jid.InvalidJidException;
 import eu.siacs.conversations.xmpp.jid.Jid;
 
-public class TrustKeysActivity extends XmppActivity implements OnKeyStatusUpdated {
+public class TrustKeysActivity extends OmemoActivity implements OnKeyStatusUpdated {
 	private List<Jid> contactJids;
 
 	private Account mAccount;
@@ -109,16 +110,14 @@ public class TrustKeysActivity extends XmppActivity implements OnKeyStatusUpdate
 		for(final String fingerprint : ownKeysToTrust.keySet()) {
 			hasOwnKeys = true;
 			addFingerprintRowWithListeners(ownKeys, mAccount, fingerprint, false,
-					FingerprintStatus.createActive(ownKeysToTrust.get(fingerprint)), false,
+					FingerprintStatus.createActive(ownKeysToTrust.get(fingerprint)), false, false,
 					new CompoundButton.OnCheckedChangeListener() {
 						@Override
 						public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 							ownKeysToTrust.put(fingerprint, isChecked);
 							// own fingerprints have no impact on locked status.
 						}
-					},
-					null,
-					null
+					}
 			);
 		}
 
@@ -134,16 +133,14 @@ public class TrustKeysActivity extends XmppActivity implements OnKeyStatusUpdate
 				final Map<String, Boolean> fingerprints = entry.getValue();
 				for (final String fingerprint : fingerprints.keySet()) {
 					addFingerprintRowWithListeners(keysContainer, mAccount, fingerprint, false,
-							FingerprintStatus.createActive(fingerprints.get(fingerprint)), false,
+							FingerprintStatus.createActive(fingerprints.get(fingerprint)), false, false,
 							new CompoundButton.OnCheckedChangeListener() {
 								@Override
 								public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 									fingerprints.put(fingerprint, isChecked);
 									lockOrUnlockAsNeeded();
 								}
-							},
-							null,
-							null
+							}
 					);
 				}
 				if (fingerprints.size() == 0) {
@@ -212,7 +209,6 @@ public class TrustKeysActivity extends XmppActivity implements OnKeyStatusUpdate
 		return ownKeysSet.size() + foreignKeysToTrust.size() > 0;
 	}
 
-	@Override
 	public void onBackendConnected() {
 		Intent intent = getIntent();
 		this.mAccount = extractAccount(intent);
diff --git a/src/main/java/eu/siacs/conversations/ui/XmppActivity.java b/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
index 1454381a..d961497c 100644
--- a/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
+++ b/src/main/java/eu/siacs/conversations/ui/XmppActivity.java
@@ -49,11 +49,8 @@ import android.util.Pair;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.inputmethod.InputMethodManager;
-import android.widget.CompoundButton;
 import android.widget.EditText;
 import android.widget.ImageView;
-import android.widget.LinearLayout;
-import android.widget.TextView;
 import android.widget.Toast;
 
 import com.google.zxing.BarcodeFormat;
@@ -69,7 +66,6 @@ import java.io.FileNotFoundException;
 import java.lang.ref.WeakReference;
 import java.util.ArrayList;
 import java.util.Collections;
-import java.util.HashMap;
 import java.util.Hashtable;
 import java.util.List;
 import java.util.Map;
@@ -78,20 +74,15 @@ import java.util.concurrent.atomic.AtomicInteger;
 
 import eu.siacs.conversations.Config;
 import eu.siacs.conversations.R;
-import eu.siacs.conversations.crypto.axolotl.FingerprintStatus;
-import eu.siacs.conversations.crypto.axolotl.XmppAxolotlSession;
 import eu.siacs.conversations.entities.Account;
 import eu.siacs.conversations.entities.Contact;
 import eu.siacs.conversations.entities.Conversation;
 import eu.siacs.conversations.entities.Message;
 import eu.siacs.conversations.entities.MucOptions;
-import eu.siacs.conversations.entities.Presence;
 import eu.siacs.conversations.entities.Presences;
-import eu.siacs.conversations.entities.ServiceDiscoveryResult;
 import eu.siacs.conversations.services.AvatarService;
 import eu.siacs.conversations.services.XmppConnectionService;
 import eu.siacs.conversations.services.XmppConnectionService.XmppConnectionBinder;
-import eu.siacs.conversations.ui.widget.Switch;
 import eu.siacs.conversations.utils.CryptoHelper;
 import eu.siacs.conversations.utils.ExceptionHelper;
 import eu.siacs.conversations.utils.UIHelper;
@@ -780,132 +771,6 @@ public abstract class XmppActivity extends Activity {
 		builder.create().show();
 	}
 
-	protected boolean addFingerprintRow(LinearLayout keys, final Account account, final String fingerprint, boolean highlight, View.OnClickListener onKeyClickedListener) {
-		final FingerprintStatus status = account.getAxolotlService().getFingerprintTrust(fingerprint);
-		if (status == null) {
-			return false;
-		}
-		return addFingerprintRowWithListeners(keys, account, fingerprint, highlight, status, true,
-				new CompoundButton.OnCheckedChangeListener() {
-					@Override
-					public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
-						account.getAxolotlService().setFingerprintTrust(fingerprint,FingerprintStatus.createActive(isChecked));
-					}
-				},
-				new View.OnClickListener() {
-					@Override
-					public void onClick(View v) {
-						account.getAxolotlService().setFingerprintTrust(fingerprint,FingerprintStatus.createActive(false));
-						v.setEnabled(true);
-					}
-				},
-				onKeyClickedListener
-
-		);
-	}
-
-	protected boolean addFingerprintRowWithListeners(LinearLayout keys, final Account account,
-	                                                 final String fingerprint,
-	                                                 boolean highlight,
-	                                                 FingerprintStatus status,
-	                                                 boolean showTag,
-	                                                 CompoundButton.OnCheckedChangeListener
-			                                                 onCheckedChangeListener,
-	                                                 View.OnClickListener onClickListener,
-													 View.OnClickListener onKeyClickedListener) {
-		if (status.isCompromised()) {
-			return false;
-		}
-		View view = getLayoutInflater().inflate(R.layout.contact_key, keys, false);
-		TextView key = (TextView) view.findViewById(R.id.key);
-		key.setOnClickListener(onKeyClickedListener);
-		TextView keyType = (TextView) view.findViewById(R.id.key_type);
-		keyType.setOnClickListener(onKeyClickedListener);
-		Switch trustToggle = (Switch) view.findViewById(R.id.tgl_trust);
-		trustToggle.setVisibility(View.VISIBLE);
-		final View.OnLongClickListener purge = new View.OnLongClickListener() {
-			@Override
-			public boolean onLongClick(View v) {
-				showPurgeKeyDialog(account, fingerprint);
-				return true;
-			}
-		};
-		view.setOnLongClickListener(purge);
-		key.setOnLongClickListener(purge);
-		keyType.setOnLongClickListener(purge);
-		boolean x509 = Config.X509_VERIFICATION && status.getTrust() == FingerprintStatus.Trust.VERIFIED_X509;
-		final View.OnClickListener toast;
-		trustToggle.setChecked(status.isTrusted(), false);
-		if (status.isActive()) {
-			key.setTextColor(getPrimaryTextColor());
-			keyType.setTextColor(getSecondaryTextColor());
-			trustToggle.setOnCheckedChangeListener(onCheckedChangeListener);
-			if (status.getTrust() == FingerprintStatus.Trust.UNDECIDED) {
-				trustToggle.setOnClickListener(onClickListener);
-				trustToggle.setEnabled(false);
-			} else {
-				trustToggle.setOnClickListener(null);
-				trustToggle.setEnabled(true);
-			}
-			toast = new View.OnClickListener() {
-				@Override
-				public void onClick(View v) {
-					hideToast();
-				}
-			};
-		} else {
-			key.setTextColor(getTertiaryTextColor());
-			keyType.setTextColor(getTertiaryTextColor());
-			trustToggle.setOnClickListener(null);
-			trustToggle.setEnabled(false);
-			toast = new View.OnClickListener() {
-				@Override
-				public void onClick(View v) {
-					replaceToast(getString(R.string.this_device_is_no_longer_in_use), false);
-				}
-			};
-			trustToggle.setOnClickListener(toast);
-		}
-		view.setOnClickListener(toast);
-		key.setOnClickListener(toast);
-		keyType.setOnClickListener(toast);
-		if (showTag) {
-			keyType.setText(getString(x509 ? R.string.omemo_fingerprint_x509 : R.string.omemo_fingerprint));
-		} else {
-			keyType.setVisibility(View.GONE);
-		}
-		if (highlight) {
-			keyType.setTextColor(getResources().getColor(R.color.accent));
-			keyType.setText(getString(x509 ? R.string.omemo_fingerprint_x509_selected_message : R.string.omemo_fingerprint_selected_message));
-		} else {
-			keyType.setText(getString(x509 ? R.string.omemo_fingerprint_x509 : R.string.omemo_fingerprint));
-		}
-
-		key.setText(CryptoHelper.prettifyFingerprint(fingerprint.substring(2)));
-
-		keys.addView(view);
-		return true;
-	}
-
-	public void showPurgeKeyDialog(final Account account, final String fingerprint) {
-		Builder builder = new Builder(this);
-		builder.setTitle(getString(R.string.purge_key));
-		builder.setIconAttribute(android.R.attr.alertDialogIcon);
-		builder.setMessage(getString(R.string.purge_key_desc_part1)
-				+ "\n\n" + CryptoHelper.prettifyFingerprint(fingerprint.substring(2))
-				+ "\n\n" + getString(R.string.purge_key_desc_part2));
-		builder.setNegativeButton(getString(R.string.cancel), null);
-		builder.setPositiveButton(getString(R.string.purge_key),
-				new DialogInterface.OnClickListener() {
-					@Override
-					public void onClick(DialogInterface dialog, int which) {
-						account.getAxolotlService().purgeKey(fingerprint);
-						refreshUi();
-					}
-				});
-		builder.create().show();
-	}
-
 	public boolean hasStoragePermission(int requestCode) {
 		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
 			if (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {