open manage account + certificate chooser when cbe mode is enabled

src/main/AndroidManifest.xml

@@ -15,7 +15,9 @@
     <uses-permission android:name="android.permission.VIBRATE"/>
     <uses-permission android:name="android.permission.NFC"/>
 
-    <uses-permission android:name="android.permission.READ_PHONE_STATE" tools:node="remove" />
+    <uses-permission
+        android:name="android.permission.READ_PHONE_STATE"
+        tools:node="remove"/>
 
     <application
         android:allowBackup="true"
@@ -48,8 +50,8 @@
         <activity
             android:name=".ui.StartConversationActivity"
             android:configChanges="orientation|screenSize"
-            android:launchMode="singleTask"
-            android:label="@string/title_activity_start_conversation" >
+            android:label="@string/title_activity_start_conversation"
+            android:launchMode="singleTask">
             <intent-filter>
                 <action android:name="android.intent.action.SENDTO"/>
 
@@ -89,9 +91,11 @@
         <activity
             android:name=".ui.ManageAccountActivity"
             android:configChanges="orientation|screenSize"
-            android:label="@string/title_activity_manage_accounts" />
+            android:label="@string/title_activity_manage_accounts"
+            android:launchMode="singleTask"/>
         <activity
             android:name=".ui.EditAccountActivity"
+            android:launchMode="singleTask"
             android:windowSoftInputMode="stateHidden|adjustResize"/>
         <activity
             android:name=".ui.ConferenceDetailsActivity"
@@ -150,6 +154,7 @@
                 android:name="android.support.PARENT_ACTIVITY"
                 android:value="eu.siacs.conversations.ui.SettingsActivity"/>
         </activity>
+
         <service android:name=".services.ExportLogsService"/>
     </application>
 

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

@@ -35,6 +35,7 @@ import net.java.otr4j.session.SessionStatus;
 import java.util.ArrayList;
 import java.util.Iterator;
 import java.util.List;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 import de.timroes.android.listview.EnhancedListView;
 import eu.siacs.conversations.Config;
@@ -105,7 +106,7 @@ public class ConversationActivity extends XmppActivity
 	private Toast prepareFileToast;
 
 	private boolean mActivityPaused = false;
-	private boolean mRedirected = true;
+	private AtomicBoolean mRedirected = new AtomicBoolean(false);
 
 	public Conversation getSelectedConversation() {
 		return this.mSelectedConversation;
@@ -631,6 +632,12 @@ public class ConversationActivity extends XmppActivity
 				this.mConversationFragment.reInit(getSelectedConversation());
 			} else {
 				setSelectedConversation(null);
+				if (mRedirected.compareAndSet(false,true)) {
+					Intent intent = new Intent(this, StartConversationActivity.class);
+					intent.putExtra("init",true);
+					startActivity(intent);
+					finish();
+				}
 			}
 		}
 	}
@@ -985,7 +992,7 @@ public class ConversationActivity extends XmppActivity
 	@Override
 	public void onStart() {
 		super.onStart();
-		this.mRedirected = false;
+		this.mRedirected.set(false);
 		if (this.xmppConnectionServiceBound) {
 			this.onBackendConnected();
 		}
@@ -1049,14 +1056,16 @@ public class ConversationActivity extends XmppActivity
 		}
 
 		if (xmppConnectionService.getAccounts().size() == 0) {
-			if (!mRedirected) {
-				this.mRedirected = true;
+			if (mRedirected.compareAndSet(false,true)) {
+				if (Config.X509_VERIFICATION) {
+					startActivity(new Intent(this, ManageAccountActivity.class));
+				} else {
 					startActivity(new Intent(this, EditAccountActivity.class));
+				}
 				finish();
 			}
 		} else if (conversationList.size() <= 0) {
-			if (!mRedirected) {
-				this.mRedirected = true;
+			if (mRedirected.compareAndSet(false,true)) {
 				Intent intent = new Intent(this, StartConversationActivity.class);
 				intent.putExtra("init",true);
 				startActivity(intent);
@@ -1406,26 +1415,12 @@ public class ConversationActivity extends XmppActivity
 	@Override
 	protected void refreshUiReal() {
 		updateConversationList();
-		if (xmppConnectionService != null && xmppConnectionService.getAccounts().size() == 0) {
-			if (!mRedirected) {
-				this.mRedirected = true;
-				startActivity(new Intent(this, EditAccountActivity.class));
-				finish();
-			}
-		} else if (conversationList.size() == 0) {
-			if (!mRedirected) {
-				this.mRedirected = true;
-				Intent intent = new Intent(this, StartConversationActivity.class);
-				intent.putExtra("init",true);
-				startActivity(intent);
-				finish();
-			}
-		} else {
+		if (conversationList.size() > 0) {
 			ConversationActivity.this.mConversationFragment.updateMessages();
 			updateActionBarTitle();
-		}
 			invalidateOptionsMenu();
 		}
+	}
 
 	@Override
 	public void onAccountUpdate() {

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

@@ -1,6 +1,8 @@
 package eu.siacs.conversations.ui;
 
+import android.app.ActionBar;
 import android.app.AlertDialog;
+import android.content.ActivityNotFoundException;
 import android.content.DialogInterface;
 import android.content.DialogInterface.OnClickListener;
 import android.content.Intent;
@@ -20,6 +22,7 @@ import android.widget.Toast;
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.concurrent.atomic.AtomicBoolean;
 
 import eu.siacs.conversations.Config;
 import eu.siacs.conversations.R;
@@ -35,6 +38,7 @@ public class ManageAccountActivity extends XmppActivity implements OnAccountUpda
 	protected final List<Account> accountList = new ArrayList<>();
 	protected ListView accountListView;
 	protected AccountAdapter mAccountAdapter;
+	protected AtomicBoolean mInvokedAddAccount = new AtomicBoolean(false);
 
 	@Override
 	public void onAccountUpdate() {
@@ -47,6 +51,11 @@ public class ManageAccountActivity extends XmppActivity implements OnAccountUpda
 			accountList.clear();
 			accountList.addAll(xmppConnectionService.getAccounts());
 		}
+		ActionBar actionBar = getActionBar();
+		if (actionBar != null) {
+			actionBar.setHomeButtonEnabled(this.accountList.size() > 0);
+			actionBar.setDisplayHomeAsUpEnabled(this.accountList.size() > 0);
+		}
 		invalidateOptionsMenu();
 		mAccountAdapter.notifyDataSetChanged();
 	}
@@ -93,9 +102,12 @@ public class ManageAccountActivity extends XmppActivity implements OnAccountUpda
 
 	@Override
 	void onBackendConnected() {
-		this.accountList.clear();
-		this.accountList.addAll(xmppConnectionService.getAccounts());
-		mAccountAdapter.notifyDataSetChanged();
+		refreshUiReal();
+		if (Config.X509_VERIFICATION && this.accountList.size() == 0) {
+			if (mInvokedAddAccount.compareAndSet(false,true)) {
+				addAccountFromKey();
+			}
+		}
 	}
 
 	@Override
@@ -195,7 +207,11 @@ public class ManageAccountActivity extends XmppActivity implements OnAccountUpda
 	}
 
 	private void addAccountFromKey() {
+		try {
 			KeyChain.choosePrivateKeyAlias(this, this, null, null, null, -1, null);
+		} catch (ActivityNotFoundException e) {
+			Toast.makeText(this,R.string.device_does_not_support_certificates,Toast.LENGTH_LONG).show();
+		}
 	}
 
 	private void publishAvatar(Account account) {

src/main/res/values/strings.xml

@@ -535,4 +535,5 @@
 	<string name="action_renew_certificate">Renew certificate</string>
 	<string name="error_fetching_omemo_key">Error fetching OMEMO key!</string>
 	<string name="verified_omemo_key_with_certificate">Verified OMEMO key with certificate!</string>
+	<string name="device_does_not_support_certificates">Your device does not support the selection of client certificates!</string>
 </resources>