[ios] Added show node support.

iphone/Maps/Classes/MapDownloader/MWMBaseMapDownloaderViewController.mm

@@ -497,8 +497,13 @@ using namespace storage;
 
 - (void)showNode:(storage::TCountryId const &)countryId
 {
-  [MapsAppDelegate showNode:countryId];
+  [Statistics logEvent:kStatDownloaderMapAction
+        withParameters:@{
+          kStatAction : kStatExplore,
+          kStatFrom : kStatDownloader,
+        }];
   [self.navigationController popToRootViewControllerAnimated:YES];
+  [MWMStorage showNode:countryId];
 }
 
 #pragma mark - Managing the Status Bar

iphone/Maps/Classes/MapsAppDelegate.h

@@ -32,7 +32,6 @@ typedef NS_ENUM(NSUInteger, MWMRoutingPlaneMode)
 @property (nonatomic, readonly) LocationManager * m_locationManager;
 
 + (MapsAppDelegate *)theApp;
-+ (void)showNode:(storage::TCountryId const &)countryId;
 
 - (void)enableStandby;
 - (void)disableStandby;

iphone/Maps/Classes/MapsAppDelegate.mm

@@ -117,11 +117,6 @@ using namespace osm_auth_ios;
   return (MapsAppDelegate *)[UIApplication sharedApplication].delegate;
 }
 
-+ (void)showNode:(storage::TCountryId const &)countryId
-{
-  // TODO (igrechuhin) Add implementation
-}
-
 #pragma mark - Notifications
 
 - (void)registerNotifications:(UIApplication *)application launchOptions:(NSDictionary *)launchOptions

iphone/Maps/Classes/Storage/MWMStorage.h

@@ -9,5 +9,6 @@
 + (void)updateNode:(storage::TCountryId const &)countryId alertController:(MWMAlertViewController *)alertController;
 + (void)deleteNode:(storage::TCountryId const &)countryId alertController:(MWMAlertViewController *)alertController;
 + (void)cancelDownloadNode:(storage::TCountryId const &)countryId;
++ (void)showNode:(storage::TCountryId const &)countryId;
 
 @end

iphone/Maps/Classes/Storage/MWMStorage.mm

@@ -51,6 +51,11 @@
   GetFramework().Storage().CancelDownloadNode(countryId);
 }
 
++ (void)showNode:(storage::TCountryId const &)countryId
+{
+  GetFramework().ShowNode(countryId);
+}
+
 + (void)countryId:(storage::TCountryId const &)countryId alertController:(MWMAlertViewController *)alertController performAction:(TMWMVoidBlock)action
 {
   switch (Platform::ConnectionStatus())

iphone/Maps/Statistics/StatisticsStrings.h

@@ -69,6 +69,7 @@ static NSString * const kStatError = @"Error";
 static NSString * const kStatExpand = @"Expand";
 static NSString * const kStatExpandCategory = @"Expand category";
 static NSString * const kStatExpandLargeCountry = @"Expand large country";
+static NSString * const kStatExplore = @"Explore";
 static NSString * const kStatExport = @"Export";
 static NSString * const kStatFacebook = @"Facebook";
 static NSString * const kStatFrom = @"from";