Contact failure: Add better icon and remove technical error message

bramble-core/src/main/java/org/briarproject/bramble/keyagreement/KeyAgreementTaskImpl.java

@@ -102,6 +102,7 @@ class KeyAgreementTaskImpl extends Thread implements KeyAgreementTask,
 		KeyAgreementTransport transport =
 				connector.connect(remotePayload, alice);
 		if (transport == null) {
+			LOG.warning("Key agreement failed. Transport was null.");
 			// Notify caller that the connection failed
 			eventBus.broadcast(new KeyAgreementFailedEvent());
 			return;

briar-android/artwork/qr_code_error.svg

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   height="161.7"
+   width="409.20001"
+   version="1.1"
+   id="svg2"
+   x="0px"
+   y="0px"
+   viewBox="0 0 409.2 161.7"
+   xml:space="preserve"><metadata
+   id="metadata853"><rdf:RDF><cc:Work
+       rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
+         rdf:resource="http://purl.org/dc/dcmitype/StillImage" /><dc:title></dc:title></cc:Work></rdf:RDF></metadata><defs
+   id="defs851" />
+<style
+   type="text/css"
+   id="style826">
+	.st0{display:none;fill:none;stroke:#FFFFFF;stroke-width:4.3281;}
+	.st1{fill-rule:evenodd;clip-rule:evenodd;fill:#020202;}
+</style>
+<path
+   id="path4201"
+   d="m 369.6,157.3 -4.3,-4.3 -7.1,-2.4 c -3.9,-1.3 -8.7,-3 -10.7,-3.7 l -3.7,-1.3 3.5,-0.2 c 8.2,-0.4 13,-4 14.3,-10.9 0.8,-4.1 1.1,-17.3 0.8,-33 -0.2,-8.100003 -0.2,-15.400003 0,-16.300003 0.1,-0.9 0.5,-2.4 0.9,-3.4 1.2,-3.5 0.3,-11.9 -1.9,-17.6 -0.3,-0.9 -1.9,-4.2 -3.5,-7.4 -4.2,-8.2 -4.5,-8.9 -4.9,-10.5 -0.5,-1.8 -0.2,-5.4 0.5,-6.8 0.7,-1.3 2.2,-2.9 3.2,-3.5 1.3,-0.7 2.6,0.1 4.7,2.9 3.4,4.5 14,19.4 15.7,22.2 3.7,6 6,11.2 8,18.8 0.7,2.5 1.9,7 2.7,10.1 0.8,3.1 2.7,10.200003 4.1,15.800003 l 2.6,10.2 4.6,5.2 c 2.6,2.9 5.8,6.5 7.2,8 1.4,1.6 2.5,3 2.5,3.2 0,0.3 -34.5,29.3 -34.9,29.3 0.1,-0.1 -1.9,-2.1 -4.3,-4.4 z m -93.9,-16.4 c -1.3,-0.6 -2.2,-1.4 -2.9,-2.3 -2.1,-2.7 -2,2.4 -1.9,-68.500003 l 0.1,-64.0000001 0.7,-1.2 c 1,-1.9 2,-2.9 3.7,-3.89999995 l 1.6,-0.9 L 314.8,-3.0517578e-6 C 357.3,-0.10000305 354.2,-0.20000305 356.9,2.1999969 c 0.9,0.8 1.8,2 2.2,2.9 0.7,1.6 0.7,1.6 0.8,14.2000001 l 0.1,12.6 -1.8,-0.1 c -1.4,-0.1 -2.1,0 -3.2,0.5 -2,1 -3.9,2.9 -5.1,5.1 l -1,2 v -12.8 -12.8 h -33.6 -33.6 v 51.3 V 116.4 h 33.6 33.6 L 349,81.999997 c 0.1,-33 0.1,-34.4 0.6,-32.9 0.3,0.8 1.8,4 3.4,7 5.5,10.6 5.4,9.9 5.4,47.200003 0,27.6 -0.1,30 -1.7,33.1 -1.1,2.2 -2.7,3.7 -5.1,4.7 l -1.7,0.7 -36.1,-0.1 -36.2,0.1 z m 42.4,-5.1 c 2.9,-1.3 4.5,-3.7 4.4,-6.6 0,-4.1 -3.1,-7.2 -7.1,-7.2 -2.1,0 -3.6,0.6 -5.2,2.2 -2.2,2.2 -2.8,5.4 -1.3,8.3 0.7,1.4 2.5,3 4,3.5 1.5,0.5 3.9,0.5 5.2,-0.2 z" />
+<path
+   id="path4201-1"
+   d="m 39.2,157.3 4.3,-4.3 7.1,-2.4 c 3.9,-1.3 8.7,-3 10.7,-3.7 l 3.7,-1.3 -3.5,-0.2 c -8.2,-0.4 -13,-4 -14.3,-10.9 -0.8,-4.1 -1.1,-17.3 -0.8,-33 0.2,-8.100003 0.2,-15.400003 0,-16.300003 -0.1,-0.9 -0.5,-2.4 -0.9,-3.4 -1.2,-3.5 -0.3,-11.9 1.9,-17.6 0.3,-0.9 1.9,-4.2 3.5,-7.4 4.2,-8.2 4.5,-8.9 4.9,-10.5 0.5,-1.8 0.2,-5.4 -0.5,-6.8 -0.7,-1.3 -2.2,-2.9 -3.2,-3.5 -1.3,-0.7 -2.6,0.1 -4.7,2.9 -3.4,4.5 -14,19.4 -15.7,22.2 -3.7,6 -6,11.2 -8,18.8 -0.7,2.5 -1.9,7 -2.7,10.1 -0.8,3.1 -2.7,10.200003 -4.1,15.800003 l -2.6,10.2 -4.6,5.2 c -2.6,2.9 -5.8,6.5 -7.2,8 -1.4,1.5 -2.5,3 -2.5,3.2 0,0.3 34.5,29.3 34.9,29.3 -0.1,-0.1 2,-2.1 4.3,-4.4 z m 93.9,-16.4 c 1.3,-0.6 2.2,-1.4 2.9,-2.3 2.1,-2.7 2,2.4 1.9,-68.500003 l -0.1,-64.0000001 -0.7,-1.2 c -1,-1.9 -2,-2.9 -3.7,-3.89999995 l -1.6,-0.9 L 94,-3.0517578e-6 C 51.5,-0.10000305 54.6,-0.20000305 51.9,2.1999969 c -0.9,0.8 -1.8,2 -2.2,2.9 -0.7,1.6 -0.7,1.6 -0.8,14.2000001 l -0.1,12.6 1.8,-0.1 c 1.4,-0.1 2.1,0 3.2,0.5 2,1 3.9,2.9 5.1,5.1 l 1,2 v -12.8 -12.8 h 33.6 33.6 v 51.3 V 116.4 H 93.6 60 L 59.9,81.999997 c -0.1,-33 -0.1,-34.4 -0.6,-32.9 -0.3,0.8 -1.8,4 -3.4,7 -5.5,10.6 -5.4,9.9 -5.4,47.200003 0,27.6 0.1,30 1.7,33.1 1.1,2.2 2.7,3.7 5.1,4.7 l 1.7,0.7 36.2,0.1 36.2,0.1 z m -42.4,-5.1 c -2.9,-1.3 -4.5,-3.7 -4.4,-6.6 0,-4.1 3.1,-7.2 7.1,-7.2 2.1,0 3.6,0.6 5.2,2.2 2.2,2.2 2.8,5.4 1.3,8.3 -0.7,1.4 -2.5,3 -4,3.5 -1.5,0.5 -3.8,0.5 -5.2,-0.2 z" />
+<g
+   transform="translate(46.8,-347.3)"
+   id="g832">
+	<path
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+   id="path830" />
+</g>
+<g
+   transform="translate(46.8,-347.3)"
+   id="g836">
+	<path
+   d="m 256.5,410.2 h 2.3 v 2.3 h 2.3 v 2.3 h -11.5 v -2.3 h 2.3 v -4.6 h 4.6 z m 30,20.8 h 2.3 v -2.3 h -2.3 z m -27.7,-20.8 h 2.3 v -2.3 h -2.3 z m 32.3,20.8 h 2.3 v -2.3 h -2.3 z m -27.7,2.3 H 268 V 431 h -4.6 z m 20.8,0 V 431 h -2.3 v 2.3 z m -9.2,0 h 2.3 v -4.6 H 275 Z m -18.5,-30 v 2.3 h 6.9 v -2.3 z m -2.3,2.3 v -2.3 h -4.6 v 4.6 h 2.3 v -2.3 z m 6.9,-4.6 H 245 v -16.1 h 16.1 z m -2.3,-13.8 h -11.5 v 11.5 h 11.5 z m -9.2,41.5 h 6.9 v -6.9 h -6.9 z m 23,-2.4 v 2.3 h 2.3 v -2.3 z m -16.1,-36.8 h -6.9 v 6.9 h 6.9 z m 36.9,-4.6 V 401 h -16.1 v -16.1 z m -2.3,2.3 h -11.5 v 11.5 h 11.5 z M 245,417.1 h 16.1 v 16.1 H 245 Z m 2.3,13.9 h 11.5 v -11.5 h -11.5 z m 0,-27.7 H 245 v 11.5 h 2.3 z m 30,11.5 v 2.3 h 2.3 v -2.3 z m -7,9.3 v -2.3 H 268 v 2.3 h -4.6 v 4.6 h 4.6 v 2.3 h 2.3 v -4.6 h 2.3 v -2.3 z m -6.9,-30 h 4.6 v -2.3 h -4.6 z m 18.5,18.4 h 4.6 v 2.3 h 2.3 v -6.9 h -2.3 v -4.6 h -2.3 v 6.9 h -6.9 v 2.3 h 2.3 v 2.3 h 2.3 z m 2.3,6.9 h -2.3 v -2.3 h -2.3 v 4.6 h -6.9 v 2.3 h 4.6 v 4.6 h 2.3 v 2.3 h 2.3 v -4.6 h 9.2 V 424 h -6.9 z m 0,0 h 2.3 v -4.6 h -2.3 z m -18.5,0 v -2.3 h 2.3 v -2.3 h 2.3 v -2.3 h 2.3 v -4.6 h 6.9 v -4.6 h -2.3 v 2.3 H 275 v -9.2 h -2.3 v -4.6 h 2.3 v -6.9 h -2.3 v 4.6 h -2.3 v -4.6 h -6.9 v 4.6 h 2.3 v -2.3 h 2.3 v 4.6 h 2.3 v 6.9 h 2.3 v 2.3 h -2.3 v 4.6 H 268 V 401 h -2.3 v -2.3 h -2.3 v 4.6 h 2.3 v 2.3 h -2.3 v 6.9 h 2.3 v -4.6 h 2.3 v 4.6 h -2.3 v 2.3 h -2.3 v 6.9 h 4.6 v -2.3 z m 25.4,2.3 v -2.3 h -4.6 v 2.3 z m -2.3,-32.2 h -6.9 v 6.9 h 6.9 z m -18.5,29.9 h 4.6 v -2.3 h -2.3 v -2.3 h -2.3 z m 4.7,-4.6 v -2.3 h -2.3 v 2.3 z m 13.8,-9.2 h 4.6 v -2.3 h -4.6 z m 2.3,18.5 h 2.3 v -2.3 h -2.3 z m 0,-13.9 h 2.3 v -2.3 h -2.3 z M 270.3,398.7 H 268 v 2.3 h 2.3 z m 0,0"
+   id="path834" />
+</g>
+
+
+
+<path
+   style="opacity:1;fill:#000000;stroke-width:3.21294165"
+   d="m 207.61295,88.782357 h -6.42588 v -12.85177 h 6.42588 m 0,25.703533 h -6.42588 v -6.425883 h 6.42588 m -38.5553,16.064713 h 70.68472 L 204.40001,50.227047 Z"
+   id="path2" /></svg>
\ No newline at end of file

briar-android/src/main/java/org/briarproject/briar/android/keyagreement/ContactExchangeActivity.java

@@ -97,14 +97,14 @@ public class ContactExchangeActivity extends KeyAgreementActivity implements
 	@Override
 	public void contactExchangeFailed() {
 		runOnUiThreadUnlessDestroyed(() -> {
-			showErrorFragment(R.string.contact_exchange_failed);
+			showErrorFragment(R.string.connection_error_explanation);
 		});
 	}
 
 	@UiThread
 	@Override
 	public void keyAgreementFailed() {
-		showErrorFragment(R.string.connection_failed);
+		showErrorFragment(R.string.connection_error_explanation);
 	}
 
 	@UiThread

briar-android/src/main/java/org/briarproject/briar/android/keyagreement/ContactExchangeErrorFragment.java

@@ -2,6 +2,7 @@ package org.briarproject.briar.android.keyagreement;
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
+import android.support.annotation.StringRes;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -28,10 +29,10 @@ public class ContactExchangeErrorFragment extends BaseFragment {
 			ContactExchangeErrorFragment.class.getName();
 	private static final String ERROR_MSG = "errorMessage";
 
-	public static ContactExchangeErrorFragment newInstance(String message) {
+	public static ContactExchangeErrorFragment newInstance(@StringRes int res) {
 		ContactExchangeErrorFragment f = new ContactExchangeErrorFragment();
 		Bundle args = new Bundle();
-		args.putString(ERROR_MSG, message);
+		args.putInt(ERROR_MSG, res);
 		f.setArguments(args);
 		return f;
 	}
@@ -39,24 +40,11 @@ public class ContactExchangeErrorFragment extends BaseFragment {
 	@Inject
 	AndroidExecutor androidExecutor;
 
-	private String errorMessage;
-
 	@Override
 	public String getUniqueTag() {
 		return TAG;
 	}
 
-	@Override
-	public void onCreate(@Nullable Bundle savedInstanceState) {
-		super.onCreate(savedInstanceState);
-
-		Bundle args = getArguments();
-		if (args == null) {
-			throw new IllegalArgumentException("Use newInstance()");
-		}
-		errorMessage = args.getString(ERROR_MSG);
-	}
-
 	@Nullable
 	@Override
 	public View onCreateView(LayoutInflater inflater,
@@ -66,13 +54,17 @@ public class ContactExchangeErrorFragment extends BaseFragment {
 				.inflate(R.layout.fragment_error_contact_exchange, container,
 						false);
 
-		// make feedback link clickable
+		// set humanized error message
 		TextView explanation = v.findViewById(R.id.errorMessage);
-		onSingleLinkClick(explanation, this::triggerFeedback);
+		Bundle args = getArguments();
+		if (args == null) {
+			throw new IllegalArgumentException("Use newInstance()");
+		}
+		explanation.setText(args.getInt(ERROR_MSG));
 
-		// technical error message
-		TextView msg = v.findViewById(R.id.errorMessageTech);
-		msg.setText(errorMessage);
+		// make feedback link clickable
+		TextView sendFeedback = v.findViewById(R.id.sendFeedback);
+		onSingleLinkClick(sendFeedback, this::triggerFeedback);
 
 		// buttons
 		Button tryAgain = v.findViewById(R.id.tryAgainButton);

briar-android/src/main/java/org/briarproject/briar/android/keyagreement/KeyAgreementActivity.java

@@ -188,8 +188,7 @@ public abstract class KeyAgreementActivity extends BriarActivity implements
 	}
 
 	protected void showErrorFragment(@StringRes int errorResId) {
-		String errorMessage = getString(errorResId);
-		BaseFragment f = ContactExchangeErrorFragment.newInstance(errorMessage);
+		BaseFragment f = ContactExchangeErrorFragment.newInstance(errorResId);
 		showNextFragment(f);
 	}
 

briar-android/src/main/res/drawable/qr_code_error.xml

+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="409.2dp"
+        android:height="161.7dp"
+        android:viewportHeight="161.7"
+        android:viewportWidth="409.2">
+	<path
+		android:fillColor="#FF000000"
+		android:pathData="M369.8,157.4l-4.3,-4.3l-7.1,-2.4c-3.9,-1.3 -8.7,-3 -10.7,-3.7l-3.7,-1.3l3.5,-0.2c8.2,-0.4 13,-4 14.3,-10.9c0.8,-4.1 1.1,-17.3 0.8,-33c-0.2,-8.1 -0.2,-15.4 0,-16.3c0.1,-0.9 0.5,-2.4 0.9,-3.4c1.2,-3.5 0.3,-11.9 -1.9,-17.6c-0.3,-0.9 -1.9,-4.2 -3.5,-7.4c-4.2,-8.2 -4.5,-8.9 -4.9,-10.5c-0.5,-1.8 -0.2,-5.4 0.5,-6.8c0.7,-1.3 2.2,-2.9 3.2,-3.5c1.3,-0.7 2.6,0.1 4.7,2.9c3.4,4.5 14,19.4 15.7,22.2c3.7,6 6,11.2 8,18.8c0.7,2.5 1.9,7 2.7,10.1c0.8,3.1 2.7,10.2 4.1,15.8l2.6,10.2l4.6,5.2c2.6,2.9 5.8,6.5 7.2,8c1.4,1.6 2.5,3 2.5,3.2c0,0.3 -34.5,29.3 -34.9,29.3C374.2,161.7 372.2,159.7 369.8,157.4zM275.9,141c-1.3,-0.6 -2.2,-1.4 -2.9,-2.3c-2.1,-2.7 -2,2.4 -1.9,-68.5l0.1,-64l0.7,-1.2c1,-1.9 2,-2.9 3.7,-3.9l1.6,-0.9l37.8,-0.1c42.5,-0.1 39.4,-0.2 42.1,2.2c0.9,0.8 1.8,2 2.2,2.9c0.7,1.6 0.7,1.6 0.8,14.2l0.1,12.6l-1.8,-0.1c-1.4,-0.1 -2.1,0 -3.2,0.5c-2,1 -3.9,2.9 -5.1,5.1l-1,2l0,-12.8l0,-12.8h-33.6h-33.6v51.3v51.3h33.6h33.6l0.1,-34.4c0.1,-33 0.1,-34.4 0.6,-32.9c0.3,0.8 1.8,4 3.4,7c5.5,10.6 5.4,9.9 5.4,47.2c0,27.6 -0.1,30 -1.7,33.1c-1.1,2.2 -2.7,3.7 -5.1,4.7l-1.7,0.7L314,141.8l-36.2,0.1L275.9,141L275.9,141zM318.3,135.9c2.9,-1.3 4.5,-3.7 4.4,-6.6c0,-4.1 -3.1,-7.2 -7.1,-7.2c-2.1,0 -3.6,0.6 -5.2,2.2c-2.2,2.2 -2.8,5.4 -1.3,8.3c0.7,1.4 2.5,3 4,3.5C314.6,136.6 317,136.6 318.3,135.9z"/>
+	<path
+		android:fillColor="#FF000000"
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+		android:fillColor="#FF000000"
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+	<path
+		android:fillColor="#000000"
+		android:pathData="M 207.61295,88.782357 h -6.42588 v -12.85177 h 6.42588 m 0,25.703533 h -6.42588 v -6.425883 h 6.42588 m -38.5553,16.064713 h 70.68472 L 204.40001,50.227047 Z"
+		android:strokeWidth="3.21294165"/>
+</vector>
\ No newline at end of file

briar-android/src/main/res/layout/fragment_error_contact_exchange.xml

@@ -29,7 +29,9 @@
 			android:layout_height="wrap_content"
 			android:layout_marginLeft="16dp"
 			android:layout_marginRight="16dp"
-			android:src="@drawable/qr_code_intro"
+			android:layout_marginTop="16dp"
+			android:scaleType="fitCenter"
+			android:src="@drawable/qr_code_error"
 			app:layout_constraintEnd_toEndOf="parent"
 			app:layout_constraintStart_toStartOf="parent"
 			app:layout_constraintTop_toBottomOf="@+id/errorTitle"
@@ -45,30 +47,32 @@
 			android:layout_marginRight="16dp"
 			android:layout_marginStart="16dp"
 			android:layout_marginTop="8dp"
-			android:text="@string/connection_error_explanation"
 			android:textColor="?android:attr/textColorPrimary"
 			android:textSize="@dimen/text_size_medium"
+			app:layout_constraintBottom_toTopOf="@+id/sendFeedback"
 			app:layout_constraintEnd_toEndOf="parent"
 			app:layout_constraintStart_toStartOf="parent"
-			app:layout_constraintTop_toBottomOf="@+id/errorIcon"/>
+			app:layout_constraintTop_toBottomOf="@+id/errorIcon"
+			app:layout_constraintVertical_bias="0"
+			app:layout_constraintVertical_chainStyle="packed"
+			tools:text="@string/connection_error_explanation"/>
 
 		<TextView
-			android:id="@+id/errorMessageTech"
+			android:id="@+id/sendFeedback"
 			android:layout_width="0dp"
 			android:layout_height="wrap_content"
-			android:layout_margin="16dp"
-			android:layout_marginBottom="8dp"
-			android:alpha="0.5"
-			android:background="@color/card_background"
-			android:fontFamily="monospace"
-			android:padding="8dp"
-			android:textColor="@color/briar_red"
+			android:layout_marginEnd="16dp"
+			android:layout_marginLeft="16dp"
+			android:layout_marginRight="16dp"
+			android:layout_marginStart="16dp"
+			android:layout_marginTop="8dp"
+			android:text="@string/connection_error_feedback"
+			android:textColor="?android:attr/textColorPrimary"
 			android:textSize="@dimen/text_size_medium"
 			app:layout_constraintBottom_toTopOf="@+id/tryAgainButton"
 			app:layout_constraintEnd_toEndOf="parent"
 			app:layout_constraintStart_toStartOf="parent"
-			app:layout_constraintTop_toBottomOf="@+id/errorMessage"
-			tools:text="@string/connection_failed"/>
+			app:layout_constraintTop_toBottomOf="@+id/errorMessage"/>
 
 		<Button
 			android:id="@+id/tryAgainButton"

briar-android/src/main/res/values/strings.xml

@@ -133,22 +133,21 @@
 	<string name="add_contact_title">Add a Contact</string>
 	<string name="face_to_face">You must meet up with the person you want to add as a contact.\n\nThis will prevent anyone from impersonating you or reading your messages in future.</string>
 	<string name="continue_button">Continue</string>
-	<string name="connection_failed">Connection failed</string>
 	<string name="try_again_button">Try Again</string>
 	<string name="waiting_for_contact_to_scan">Waiting for contact to scan and connect\u2026</string>
 	<string name="exchanging_contact_details">Exchanging contact details\u2026</string>
 	<string name="contact_added_toast">Contact added: %s</string>
 	<string name="contact_already_exists">Contact %s already exists</string>
-	<string name="contact_exchange_failed">Contact exchange failed</string>
 	<string name="qr_code_invalid">The QR code is invalid</string>
 	<string name="qr_code_unsupported">The QR code you are trying to scan belongs to an old version of %s which is no longer supported.\n\nPlease ensure that both of you are running the latest version and then try again.</string>
 	<string name="camera_error">Camera error</string>
 	<string name="connecting_to_device">Connecting to device\u2026</string>
 	<string name="authenticating_with_device">Authenticating with device\u2026</string>
-	<string name="connection_aborted_local">Connection aborted! This could mean that someone is trying to interfere with your connection</string>
-	<string name="connection_aborted_remote">Connection aborted by your contact! This could mean that someone is trying to interfere with your connection</string>
+	<string name="connection_aborted_local">The connection was aborted. Please try again! It might help to check that you\'re both connected to the same Wi-Fi network!</string>
+	<string name="connection_aborted_remote">The connection was aborted by your contact\'s device. Please try again! It might help to check that you\'re both connected to the same Wi-Fi network!</string>
 	<string name="connection_error_title">Could not connect to your contact</string>
-	<string name="connection_error_explanation">Please check that you\'re both connected to the same Wi-Fi network.\n\nIf this problem persists, please <a href="feedback">send feedback</a> to help us improve the app.</string>
+	<string name="connection_error_explanation">Please check that you\'re both connected to the same Wi-Fi network.</string>
+	<string name="connection_error_feedback">If this problem persists, please <a href="feedback">send feedback</a> to help us improve the app.</string>
 
 	<!-- Introductions -->
 	<string name="introduction_onboarding_title">Introduce your contacts</string>