bottomTab static events - #1078

lib/ios/RNNControllerFactory.m

@@ -135,7 +135,7 @@
 }
 
 -(UIViewController<RNNRootViewProtocol> *)createTabs:(RNNLayoutNode*)node {
-	RNNTabBarController* vc = [[RNNTabBarController alloc] init];
+	RNNTabBarController* vc = [[RNNTabBarController alloc] initWithEventEmitter:_eventEmitter];
 	NSDictionary* options = node.data[@"options"];
 
 	NSMutableArray* controllers = [NSMutableArray new];

lib/ios/RNNEventEmitter.m

@@ -15,7 +15,7 @@ static NSString* const onNavigationCommand	= @"RNN.onNavigationCommand";
 static NSString* const onNavigationEvent	= @"RNN.onNavigationEvent";
 
 -(NSArray<NSString *> *)supportedEvents {
-	return @[onAppLaunched, componentDidAppear, componentDidDisappear, onNavigationButtonPressed];
+	return @[onAppLaunched, componentDidAppear, componentDidDisappear, onNavigationButtonPressed, onNavigationCommand, onNavigationEvent];
 }
 
 # pragma mark public

lib/ios/RNNTabBarController.h

@@ -1,8 +1,11 @@
 
 #import <UIKit/UIKit.h>
 #import "RNNRootViewProtocol.h"
+#import "RNNEventEmitter.h"
 
-@interface RNNTabBarController : UITabBarController <RNNRootViewProtocol>
+@interface RNNTabBarController : UITabBarController <RNNRootViewProtocol, UITabBarControllerDelegate>
+
+- (instancetype)initWithEventEmitter:(RNNEventEmitter*)eventEmitter;
 
 - (void)setTabBarHidden:(BOOL)hidden animated:(BOOL)animated;
 - (void)setSelectedIndexByComponentID:(NSString *)componentID;

lib/ios/RNNTabBarController.m

@@ -3,7 +3,17 @@
 #import "RNNRootViewController.h"
 #define kTabBarHiddenDuration 0.3
 
-@implementation RNNTabBarController
+@implementation RNNTabBarController {
+	NSUInteger _currentTabIndex;
+	RNNEventEmitter *_eventEmitter;
+}
+
+- (instancetype)initWithEventEmitter:(id)eventEmitter {
+	self = [super init];
+	_eventEmitter = eventEmitter;
+	self.delegate = self;
+	return self;
+}
 
 - (UIInterfaceOrientationMask)supportedInterfaceOrientations {
 	return self.selectedViewController.supportedInterfaceOrientations;
@@ -49,4 +59,16 @@
 	return ((UIViewController<RNNRootViewProtocol>*)self.selectedViewController).componentId;
 }
 
+#pragma mark UITabBarControllerDelegate
+
+- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController {
+	if (tabBarController.selectedIndex == _currentTabIndex) {
+		[_eventEmitter sendOnNavigationEvent:@"bottomTabReselected" params:@{@"index": @(tabBarController.selectedIndex)}];
+	} else {
+		[_eventEmitter sendOnNavigationEvent:@"bottomTabSelected" params:@{@"index": @(tabBarController.selectedIndex)}];
+	}
+	
+	_currentTabIndex = tabBarController.selectedIndex;
+}
+
 @end