Change restart handling to show a dialog first (ref #49).

The notification is only shown if the dialog is dismissed, in which
case the dialog won't show up as long as syncthing is not restarted.

src/main/java/com/nutomic/syncthingandroid/gui/NodeSettingsActivity.java

@@ -163,7 +163,7 @@ public class NodeSettingsActivity extends PreferenceActivity implements
 					Toast.makeText(this, R.string.node_name_required, Toast.LENGTH_LONG).show();
 					return true;
 				}
-				mSyncthingService.getApi().editNode(mNode, true);
+				mSyncthingService.getApi().editNode(mNode, true, this);
 				finish();
 				return true;
 			case R.id.share_node_id:
@@ -216,7 +216,7 @@ public class NodeSettingsActivity extends PreferenceActivity implements
 					.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
 						@Override
 						public void onClick(DialogInterface dialogInterface, int i) {
-							mSyncthingService.getApi().deleteNode(mNode);
+							mSyncthingService.getApi().deleteNode(mNode, NodeSettingsActivity.this);
 							finish();
 						}
 					})
@@ -246,7 +246,7 @@ public class NodeSettingsActivity extends PreferenceActivity implements
 	 */
 	private void nodeUpdated() {
 		if (getIntent().getAction().equals(ACTION_EDIT)) {
-			mSyncthingService.getApi().editNode(mNode, false);
+			mSyncthingService.getApi().editNode(mNode, false, this);
 		}
 	}
 

src/main/java/com/nutomic/syncthingandroid/gui/RepoSettingsActivity.java

@@ -197,7 +197,7 @@ public class RepoSettingsActivity extends PreferenceActivity
 					Toast.makeText(this, R.string.repo_path_required, Toast.LENGTH_LONG).show();
 					return true;
 				}
-				mSyncthingService.getApi().editRepo(mRepo, true);
+				mSyncthingService.getApi().editRepo(mRepo, true, this);
 				finish();
 				return true;
 			case android.R.id.home:
@@ -295,7 +295,7 @@ public class RepoSettingsActivity extends PreferenceActivity
 					.setPositiveButton(android.R.string.yes, new DialogInterface.OnClickListener() {
 						@Override
 						public void onClick(DialogInterface dialogInterface, int i) {
-							mSyncthingService.getApi().deleteRepo(mRepo);
+							mSyncthingService.getApi().deleteRepo(mRepo, RepoSettingsActivity.this);
 							finish();
 						}
 					})
@@ -317,7 +317,7 @@ public class RepoSettingsActivity extends PreferenceActivity
 
 	private void repoUpdated() {
 		if (getIntent().getAction().equals(ACTION_EDIT)) {
-			mSyncthingService.getApi().editRepo(mRepo, false);
+			mSyncthingService.getApi().editRepo(mRepo, false, this);
 		}
 	}
 

src/main/java/com/nutomic/syncthingandroid/gui/SettingsActivity.java

@@ -161,11 +161,12 @@ public class SettingsActivity extends PreferenceActivity
 
 		if (mOptionsScreen.findPreference(preference.getKey()) != null) {
 			mSyncthingService.getApi().setValue(RestApi.TYPE_OPTIONS, preference.getKey(), o,
-					preference.getKey().equals("ListenAddress"));
+					preference.getKey().equals("ListenAddress"), this);
 			return true;
 		}
 		else if (mGuiScreen.findPreference(preference.getKey()) != null) {
-			mSyncthingService.getApi().setValue(RestApi.TYPE_GUI, preference.getKey(), o, false);
+			mSyncthingService.getApi().setValue(
+					RestApi.TYPE_GUI, preference.getKey(), o, false, this);
 			return true;
 		}
 		return false;

src/main/java/com/nutomic/syncthingandroid/syncthing/RestApi.java

@@ -1,10 +1,12 @@
 package com.nutomic.syncthingandroid.syncthing;
 
 import android.app.Activity;
+import android.app.AlertDialog;
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.content.Context;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.support.v4.app.NotificationCompat;
 import android.util.Log;
@@ -131,6 +133,8 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener {
 
 	private final NotificationManager mNotificationManager;
 
+	private boolean mRestartPostponed = false;
+
 	/**
 	 * Stores the result of the last successful request to {@link GetTask#URI_CONNECTIONS},
 	 * or an empty HashMap.
@@ -267,12 +271,12 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener {
 	 * @param value The new value to set, either String, Boolean or Integer.
 	 * @param isArray True iff value is a space seperated String that should be converted to array.
 	 */
-	public <T> void setValue(String name, String key, T value, boolean isArray) {
+	public <T> void setValue(String name, String key, T value, boolean isArray, Activity activity) {
 		try {
 			mConfig.getJSONObject(name).put(key, (isArray)
 					? listToJson(((String) value).split(" "))
 					: value);
-			configUpdated();
+			configUpdated(activity);
 		}
 		catch (JSONException e) {
 			Log.w(TAG, "Failed to set value for " + key, e);
@@ -294,21 +298,41 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener {
 	/**
 	 * Sends the updated mConfig via Rest API to syncthing and displays a "restart" notification.
 	 */
-	private void configUpdated() {
+	private void configUpdated(Activity activity) {
 		new PostTask().execute(mUrl, PostTask.URI_CONFIG, mApiKey, mConfig.toString());
 
-		Intent i = new Intent(mSyncthingService, SyncthingService.class)
+		if (mRestartPostponed) {
+			return;
+		}
+
+		final Intent intent = new Intent(mSyncthingService, SyncthingService.class)
 				.setAction(SyncthingService.ACTION_RESTART);
-		PendingIntent pi = PendingIntent.getService(mSyncthingService, 0, i, 0);
+
+		new AlertDialog.Builder(activity)
+				.setMessage(R.string.restart_title)
+				.setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
+					@Override
+					public void onClick(DialogInterface dialogInterface, int i) {
+						mSyncthingService.startService(intent);
+					}
+				})
+				.setNegativeButton(R.string.restart_later, new DialogInterface.OnClickListener() {
+					@Override
+					public void onClick(DialogInterface dialogInterface, int i) {
+						PendingIntent pi = PendingIntent.getService(mSyncthingService, 0, intent, 0);
 
 						Notification n = new NotificationCompat.Builder(mSyncthingService)
-				.setContentTitle(mSyncthingService.getString(R.string.restart_notif_title))
+								.setContentTitle(mSyncthingService.getString(R.string.restart_title))
-				.setContentText(mSyncthingService.getString(R.string.restart_notif_text))
+								.setContentText(mSyncthingService.getString(R.string.restart_notification_text))
 								.setSmallIcon(R.drawable.ic_launcher)
 								.setContentIntent(pi)
 								.build();
 						n.flags |= Notification.FLAG_ONLY_ALERT_ONCE | Notification.FLAG_AUTO_CANCEL;
 						mNotificationManager.notify(NOTIFICATION_RESTART, n);
+						mRestartPostponed = true;
+					}
+				})
+				.show();
 	}
 
 	/**
@@ -557,7 +581,7 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener {
 	/**
 	 * Updates or creates the given node.
 	 */
-	public void editNode(Node node, boolean create) {
+	public void editNode(Node node, boolean create, Activity activity) {
 		try {
 			JSONArray nodes = mConfig.getJSONArray("Nodes");
 			JSONObject n = null;
@@ -577,7 +601,7 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener {
 			n.put("NodeID", node.NodeID);
 			n.put("Name", node.Name);
 			n.put("Addresses", listToJson(node.Addresses.split(" ")));
-			configUpdated();
+			configUpdated(activity);
 		}
 		catch (JSONException e) {
 			Log.w(TAG, "Failed to read nodes", e);
@@ -587,7 +611,7 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener {
 	/**
 	 * Deletes the given node from syncthing.
 	 */
-	public void deleteNode(Node node) {
+	public void deleteNode(Node node, Activity activity) {
 		try {
 			JSONArray nodes = mConfig.getJSONArray("Nodes");
 
@@ -599,7 +623,7 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener {
 					break;
 				}
 			}
-			configUpdated();
+			configUpdated(activity);
 		}
 		catch (JSONException e) {
 			Log.w(TAG, "Failed to edit repo", e);
@@ -609,7 +633,7 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener {
 	/**
 	 * Updates or creates the given node.
 	 */
-	public void editRepo(Repo repo, boolean create) {
+	public void editRepo(Repo repo, boolean create, Activity activity) {
 		try {
 			JSONArray repos = mConfig.getJSONArray("Repositories");
 			JSONObject r = null;
@@ -647,7 +671,7 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener {
 				params.put(key, repo.Versioning.getParams().get(key));
 			}
 			r.put("Versioning", versioning);
-			configUpdated();
+			configUpdated(activity);
 		}
 		catch (JSONException e) {
 			Log.w(TAG, "Failed to edit repo " + repo.ID + " at " + repo.Directory, e);
@@ -657,7 +681,7 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener {
 	/**
 	 * Deletes the given repository from syncthing.
 	 */
-	public void deleteRepo(Repo repo) {
+	public void deleteRepo(Repo repo, Activity activity) {
 		try {
 			JSONArray repos = mConfig.getJSONArray("Repositories");
 
@@ -669,7 +693,7 @@ public class RestApi implements SyncthingService.OnWebGuiAvailableListener {
 					break;
 				}
 			}
-			configUpdated();
+			configUpdated(activity);
 		}
 		catch (JSONException e) {
 			Log.w(TAG, "Failed to edit repo", e);

src/main/res/values/strings.xml

@@ -3,15 +3,6 @@
 
 	<string name="app_name">Syncthing</string>
 
-	<!-- Title of the notification shown when a restart is needed -->
-	<string name="restart_notif_title">Restart Needed</string>
-
-	<!-- Text of the notification shown when a restart is needed -->
-	<string name="restart_notif_text">Click here to restart syncthing now</string>
-
-	<!-- ActionBar title shown when the drawer is open -->
-	<string name="system_info">System Info</string>
-
 	<!-- MainActivity -->
 
 
@@ -68,6 +59,9 @@
 	<!-- LocalNodeInfoFragment -->
 
 
+	<!-- ActionBar title shown when the drawer is open -->
+	<string name="system_info">System Info</string>
+
 	<!-- Same as download_title with a colon and space appended -->
 	<string name="download_title_colon">Download:\u0020</string>
 
@@ -220,6 +214,15 @@ Please report any problems you encounter.</string>
 	<!-- RestApi -->
 
 
+	<!-- Title of the notification shown when a restart is needed -->
+	<string name="restart_title">Restart Needed</string>
+
+	<!-- Text of the notification shown when a restart is needed -->
+	<string name="restart_notification_text">Click here to restart syncthing now</string>
+
+	<!-- Text for the dismiss button of the restart Activity -->
+	<string name="restart_later">Restart Later</string>
+
 	<!-- Strings representing units for file sizes, from smallest to largest -->
 	<string-array name="file_size_units">
 		<item>B</item>