From 3ec1364aed221f8ec3b4b20413720a1bd617cc36 Mon Sep 17 00:00:00 2001
From: panxi <xinleiryan.pan@verizonwireless.com>
Date: Fri, 3 May 2019 15:25:41 -0400
Subject: [PATCH] let tabbar manager handle child viewcontroller's behavior

---
 MVMCoreUI/BaseControllers/MFViewController.m     | 13 +++++++++++++
 .../MVMCoreUISplitViewController.m               |  4 ++--
 .../MVMCoreUITabBarPageControlViewController.m   | 16 ++++++++++++++++
 3 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/MVMCoreUI/BaseControllers/MFViewController.m b/MVMCoreUI/BaseControllers/MFViewController.m
index 0c3b3f3d..5c599ca3 100644
--- a/MVMCoreUI/BaseControllers/MFViewController.m
+++ b/MVMCoreUI/BaseControllers/MFViewController.m
@@ -352,6 +352,19 @@
     }
 }
 
+- (BOOL)isOverridingLeftButton {
+    NSDictionary *leftPanelLinkDict = [self.loadObject.pageJSON dict:@"leftPanelButtonLink"];
+    if (leftPanelLinkDict) {
+        [[MVMCoreActionHandler sharedActionHandler] handleActionWithDictionary:leftPanelLinkDict
+                                                                additionalData:nil
+                                                                delegateObject:[self delegateObject]];
+        return YES;
+    } else {
+        return NO;
+    }
+}
+
+
 - (void)setSupportShouldBeAccessible:(BOOL)supportShouldBeAccessible {
     
     MVMCoreUISplitViewController *splitViewController = [MVMCoreUISession sharedGlobal].splitViewController;
diff --git a/MVMCoreUI/Containers/SplitViewController/MVMCoreUISplitViewController.m b/MVMCoreUI/Containers/SplitViewController/MVMCoreUISplitViewController.m
index ff2e2964..bdfd6ecd 100644
--- a/MVMCoreUI/Containers/SplitViewController/MVMCoreUISplitViewController.m
+++ b/MVMCoreUI/Containers/SplitViewController/MVMCoreUISplitViewController.m
@@ -142,7 +142,7 @@ CGFloat const PanelAnimationDuration = 0.2;
 
 - (IBAction)leftPanelButtonPressed:(id)sender {
     [MVMCoreDispatchUtility performBlockOnMainThread:^{
-        UIViewController *viewController = [self getCurrentDetailViewController];
+        UIViewController *viewController = self.navigationController.topViewController;
 
         // If Viewcontroller confirms to protocol and implements the the method leftPanelButtonPressed
         if ([viewController conformsToProtocol:@protocol(MVMCoreUIDetailViewProtocol)]
@@ -176,7 +176,7 @@ CGFloat const PanelAnimationDuration = 0.2;
 
 - (IBAction)rightPanelButtonPressed:(id)sender {
     [MVMCoreDispatchUtility performBlockOnMainThread:^{
-        UIViewController *viewController = [self getCurrentDetailViewController];
+        UIViewController *viewController = self.navigationController.topViewController;
 
         // If Viewcontroller confirms to protocol and implements the the method rightPanelButtonPressed
         if ([viewController conformsToProtocol:@protocol(MVMCoreUIDetailViewProtocol)]
diff --git a/MVMCoreUI/Containers/TabBarController/MVMCoreUITabBarPageControlViewController.m b/MVMCoreUI/Containers/TabBarController/MVMCoreUITabBarPageControlViewController.m
index d06ca5f4..5845a06a 100644
--- a/MVMCoreUI/Containers/TabBarController/MVMCoreUITabBarPageControlViewController.m
+++ b/MVMCoreUI/Containers/TabBarController/MVMCoreUITabBarPageControlViewController.m
@@ -139,6 +139,22 @@
     }
 }
 
+- (BOOL)isOverridingLeftButton {
+    if ([self.viewController isKindOfClass:MFViewController.class]) {
+        return [(MFViewController *)self.viewController isOverridingLeftButton];
+    } else {
+        return [super isOverridingLeftButton];
+    }
+}
+
+- (BOOL)isOverridingRightButton {
+    if ([self.viewController isKindOfClass:MFViewController.class]) {
+        return [(MFViewController *)self.viewController isOverridingRightButton];
+    } else {
+        return [super isOverridingRightButton];
+    }
+}
+
 #pragma mark - View Cycle
 
 - (void)loadView {