Remove mentions of UIPopoverController (fixes regressions in #820).

Also remove -[NBContainerViewController showSendToController:] which no longer does anything of the sort, and attempt to speed up popover-popover transition a bit by not animating.

clients/ios/Classes/NBContainerViewController.h

@@ -52,7 +52,7 @@
 - (void)showFontSettingsPopover:(id)sender;
 - (void)showTrainingPopover:(id)sender;
 - (void)showUserTagsPopover:(id)sender;
-- (void)showSendToPopover:(id)sender;
 - (void)showSitePopover:(id)sender;
+- (BOOL)hidePopoverAnimated:(BOOL)animated;
 - (void)hidePopover;
 @end

clients/ios/Classes/NBContainerViewController.m

@@ -59,8 +59,6 @@
 @property (readwrite) UIDeviceOrientation rotatingToOrientation;
 @property (nonatomic) UIBackgroundTaskIdentifier reorientBackgroundTask;
 
-@property (nonatomic, strong) UIPopoverController *popoverController;
-
 @end
 
 @implementation NBContainerViewController
@@ -82,7 +80,6 @@
 @synthesize storyNavigationController;
 @synthesize storyTitlesYCoordinate;
 @synthesize storyTitlesOnLeft;
-@synthesize popoverController;
 @synthesize storyTitlesStub;
 @synthesize isSharingStory;
 @synthesize isHidingStory;
@@ -299,13 +296,11 @@
 }
 
 - (void)showPopoverWithViewController:(UIViewController *)viewController contentSize:(CGSize)contentSize barButtonItem:(UIBarButtonItem *)barButtonItem sourceView:(UIView *)sourceView sourceRect:(CGRect)sourceRect {
-    if (self.masterNavigationController.presentedViewController) {
-        [self.masterNavigationController.presentedViewController dismissViewControllerAnimated:YES completion:nil];
-    }
-    
+    [self hidePopoverAnimated:YES];
+
     viewController.modalPresentationStyle = UIModalPresentationPopover;
     viewController.preferredContentSize = contentSize;
-    
+
     UIPopoverPresentationController *popoverPresentationController = viewController.popoverPresentationController;
     popoverPresentationController.delegate = self;
     popoverPresentationController.permittedArrowDirections = UIPopoverArrowDirectionAny;
@@ -382,17 +377,17 @@
     [self showPopoverWithViewController:self.appDelegate.userTagsViewController contentSize:CGSizeMake(220, 382) sourceView:self.storyPageControl.view sourceRect:frame];
 }
 
-- (void)showSendToPopover:(id)sender {
-    if (popoverController.isPopoverVisible) {
-        [popoverController dismissPopoverAnimated:NO];
-    }
+- (BOOL)hidePopoverAnimated:(BOOL)animated {
+    UIViewController *presentedViewController = self.masterNavigationController.presentedViewController;
+    if (!presentedViewController)
+        return NO;
+
+    [presentedViewController dismissViewControllerAnimated:animated completion:nil];
+    return YES;
 }
 
 - (void)hidePopover {
-    if (popoverController.isPopoverVisible) {
-        [popoverController dismissPopoverAnimated:YES];
-    }
-    popoverController = nil;
+    [self hidePopoverAnimated:YES];
     [appDelegate.modalNavigationController dismissViewControllerAnimated:YES completion:nil];
 }
 

clients/ios/Classes/NewsBlurAppDelegate.m

@@ -607,7 +607,8 @@
     }];
 
     if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
-        [self.masterContainerViewController presentViewController:activityViewController animated: YES completion:nil];
+        BOOL fromPopover = [self.masterContainerViewController hidePopoverAnimated:NO];
+        [self.masterContainerViewController presentViewController:activityViewController animated:!fromPopover completion:nil];
         activityViewController.modalPresentationStyle = UIModalPresentationPopover;
         // iOS 8+
         UIPopoverPresentationController *popPC = activityViewController.popoverPresentationController;

clients/ios/Classes/StoryPageControl.m

@@ -925,9 +925,6 @@
 
 - (IBAction)openSendToDialog:(id)sender {
     [self endTouchDown:sender];
-    if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad) {
-        [appDelegate.masterContainerViewController showSendToPopover:sender];
-    }
     [appDelegate showSendTo:self sender:sender];
 }