Swiftgram/Source/ASNavigationController.m
Adlai Holler 8ec4b312cf Overhaul our logging, add activity tracing support. (#399)
* Improve the os_log and os_activity integration

* Address feedback from Scott and Huy
2017-07-03 19:03:26 -07:00

122 lines
4.4 KiB
Objective-C

//
// ASNavigationController.m
// Texture
//
// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the /ASDK-Licenses directory of this source tree. An additional
// grant of patent rights can be found in the PATENTS file in the same directory.
//
// Modifications to this file made after 4/13/2017 are: Copyright (c) 2017-present,
// Pinterest, Inc. Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
#import <AsyncDisplayKit/ASNavigationController.h>
#import <AsyncDisplayKit/ASLog.h>
#import <AsyncDisplayKit/ASObjectDescriptionHelpers.h>
@implementation ASNavigationController
{
BOOL _parentManagesVisibilityDepth;
NSInteger _visibilityDepth;
}
ASVisibilityDidMoveToParentViewController;
ASVisibilityViewWillAppear;
ASVisibilityViewDidDisappearImplementation;
ASVisibilitySetVisibilityDepth;
ASVisibilityDepthImplementation;
- (void)visibilityDepthDidChange
{
for (UIViewController *viewController in self.viewControllers) {
if ([viewController conformsToProtocol:@protocol(ASVisibilityDepth)]) {
[(id <ASVisibilityDepth>)viewController visibilityDepthDidChange];
}
}
}
- (NSInteger)visibilityDepthOfChildViewController:(UIViewController *)childViewController
{
NSUInteger viewControllerIndex = [self.viewControllers indexOfObjectIdenticalTo:childViewController];
if (viewControllerIndex == NSNotFound) {
//If childViewController is not actually a child, return NSNotFound which is also a really large number.
return NSNotFound;
}
if (viewControllerIndex == self.viewControllers.count - 1) {
//view controller is at the top, just return our own visibility depth.
return [self visibilityDepth];
} else if (viewControllerIndex == 0) {
//view controller is the root view controller. Can be accessed by holding the back button.
return [self visibilityDepth] + 1;
}
return [self visibilityDepth] + self.viewControllers.count - 1 - viewControllerIndex;
}
#pragma mark - UIKit overrides
- (NSArray *)popToViewController:(UIViewController *)viewController animated:(BOOL)animated
{
as_activity_create_for_scope("Pop multiple from ASNavigationController");
NSArray *viewControllers = [super popToViewController:viewController animated:animated];
as_log_info(ASNodeLog(), "Popped %@ to %@, removing %@", self, viewController, ASGetDescriptionValueString(viewControllers));
[self visibilityDepthDidChange];
return viewControllers;
}
- (NSArray *)popToRootViewControllerAnimated:(BOOL)animated
{
as_activity_create_for_scope("Pop to root of ASNavigationController");
NSArray *viewControllers = [super popToRootViewControllerAnimated:animated];
as_log_info(ASNodeLog(), "Popped view controllers %@ from %@", ASGetDescriptionValueString(viewControllers), self);
[self visibilityDepthDidChange];
return viewControllers;
}
- (void)setViewControllers:(NSArray *)viewControllers
{
// NOTE: As of now this method calls through to setViewControllers:animated: so no need to log/activity here.
[super setViewControllers:viewControllers];
[self visibilityDepthDidChange];
}
- (void)setViewControllers:(NSArray *)viewControllers animated:(BOOL)animated
{
as_activity_create_for_scope("Set view controllers of ASNavigationController");
as_log_info(ASNodeLog(), "Set view controllers of %@ to %@ animated: %d", self, ASGetDescriptionValueString(viewControllers), animated);
[super setViewControllers:viewControllers animated:animated];
[self visibilityDepthDidChange];
}
- (void)pushViewController:(UIViewController *)viewController animated:(BOOL)animated
{
as_activity_create_for_scope("Push view controller on ASNavigationController");
as_log_info(ASNodeLog(), "Pushing %@ onto %@", viewController, self);
[super pushViewController:viewController animated:animated];
[self visibilityDepthDidChange];
}
- (UIViewController *)popViewControllerAnimated:(BOOL)animated
{
as_activity_create_for_scope("Pop view controller from ASNavigationController");
UIViewController *viewController = [super popViewControllerAnimated:animated];
as_log_info(ASNodeLog(), "Popped %@ from %@", viewController, self);
[self visibilityDepthDidChange];
return viewController;
}
@end