show toast hint when touching inactive omemo fingerprints

src/main/java/eu/siacs/conversations/ui/EditAccountActivity.java

@@ -86,6 +86,7 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 	private TextView mSessionEst;
 	private TextView mOtrFingerprint;
 	private TextView mAxolotlFingerprint;
+	private TextView mOwnFingerprintDesc;
 	private TextView mAccountJidLabel;
 	private ImageView mAvatar;
 	private RelativeLayout mOtrFingerprintBox;
@@ -468,6 +469,7 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 		this.mAxolotlFingerprintBox = (RelativeLayout) findViewById(R.id.axolotl_fingerprint_box);
 		this.mAxolotlFingerprintToClipboardButton = (ImageButton) findViewById(R.id.action_copy_axolotl_to_clipboard);
 		this.mRegenerateAxolotlKeyButton = (ImageButton) findViewById(R.id.action_regenerate_axolotl_key);
+		this.mOwnFingerprintDesc = (TextView) findViewById(R.id.own_fingerprint_desc);
 		this.keysCard = (LinearLayout) findViewById(R.id.other_device_keys_card);
 		this.keys = (LinearLayout) findViewById(R.id.other_device_keys);
 		this.mNamePort = (LinearLayout) findViewById(R.id.name_port);
@@ -801,6 +803,11 @@ public class EditAccountActivity extends XmppActivity implements OnAccountUpdate
 			final String ownAxolotlFingerprint = this.mAccount.getAxolotlService().getOwnFingerprint();
 			if (ownAxolotlFingerprint != null && Config.supportOmemo()) {
 				this.mAxolotlFingerprintBox.setVisibility(View.VISIBLE);
+				if (ownAxolotlFingerprint.equals(messageFingerprint)) {
+					this.mOwnFingerprintDesc.setTextColor(getResources().getColor(R.color.accent));
+				} else {
+					this.mOwnFingerprintDesc.setTextColor(getSecondaryTextColor());
+				}
 				this.mAxolotlFingerprint.setText(CryptoHelper.prettifyFingerprint(ownAxolotlFingerprint.substring(2)));
 				this.mAxolotlFingerprintToClipboardButton
 						.setVisibility(View.VISIBLE);

src/main/java/eu/siacs/conversations/ui/XmppActivity.java

@@ -128,8 +128,12 @@ public abstract class XmppActivity extends Activity {
 	}
 
 	protected void replaceToast(String msg) {
+		replaceToast(msg, true);
+	}
+
+	protected void replaceToast(String msg, boolean showlong) {
 		hideToast();
-		mToast = Toast.makeText(this, msg ,Toast.LENGTH_LONG);
+		mToast = Toast.makeText(this, msg ,showlong ? Toast.LENGTH_LONG : Toast.LENGTH_SHORT);
 		mToast.show();
 	}
 
@@ -806,6 +810,7 @@ public abstract class XmppActivity extends Activity {
 				return true;
 			}
 		};
+		boolean active = true;
 		view.setOnLongClickListener(purge);
 		key.setOnLongClickListener(purge);
 		keyType.setOnLongClickListener(purge);
@@ -836,6 +841,7 @@ public abstract class XmppActivity extends Activity {
 				trustToggle.setEnabled(false);
 				key.setTextColor(getTertiaryTextColor());
 				keyType.setTextColor(getTertiaryTextColor());
+				active = false;
 				break;
 			case INACTIVE_TRUSTED:
 			case INACTIVE_TRUSTED_X509:
@@ -844,6 +850,7 @@ public abstract class XmppActivity extends Activity {
 				trustToggle.setEnabled(false);
 				key.setTextColor(getTertiaryTextColor());
 				keyType.setTextColor(getTertiaryTextColor());
+				active = false;
 				break;
 		}
 
@@ -860,6 +867,28 @@ public abstract class XmppActivity extends Activity {
 		}
 
 		key.setText(CryptoHelper.prettifyFingerprint(fingerprint.substring(2)));
+
+		final View.OnClickListener toast;
+		if (!active) {
+			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);
+		} else {
+			toast = new View.OnClickListener() {
+				@Override
+				public void onClick(View v) {
+					hideToast();
+				}
+			};
+		}
+		view.setOnClickListener(toast);
+		key.setOnClickListener(toast);
+		keyType.setOnClickListener(toast);
+
 		keys.addView(view);
 		return true;
 	}

src/main/res/layout/activity_edit_account.xml

@@ -506,6 +506,7 @@
                             android:typeface="monospace"/>
 
                         <TextView
+                            android:id="@+id/own_fingerprint_desc"
                             android:layout_width="wrap_content"
                             android:layout_height="wrap_content"
                             android:text="@string/this_device_omemo_fingerprint"

src/main/res/values/strings.xml

@@ -667,4 +667,5 @@
 	<string name="pref_use_green_background">Green Background</string>
 	<string name="pref_use_green_background_summary">Use green background for received messages</string>
 	<string name="unable_to_connect_to_keychain">Unable to connect to OpenKeychain</string>
+	<string name="this_device_is_no_longer_in_use">This device is no longer in use</string>
 </resources>