// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef IOS_CHROME_BROWSER_OVERLAYS_UI_BUNDLED_OVERLAY_PRESENTATION_CONTEXT_COORDINATOR_H_
#define IOS_CHROME_BROWSER_OVERLAYS_UI_BUNDLED_OVERLAY_PRESENTATION_CONTEXT_COORDINATOR_H_
#import <UIKit/UIKit.h>
#include "ios/chrome/browser/overlays/model/public/overlay_modality.h"
#import "ios/chrome/browser/shared/coordinator/chrome_coordinator/chrome_coordinator.h"
class OverlayPresentationContextImpl;
// Coordinator whose presentation context is used for overlay presentation.
// Manages a UIViewController that is presented over the overlay container's
// UIViewController presentation context. This is necessary due to UIKit's
// custom UIViewController presentation implementation. The only way to
// present non-modally with UIModalPresentationStyleCustom is by using a custom
// UIPresentationController whose `shouldPresentInFullscreen` property is NO.
// When such a presentation controller is provided, UIKit traverses the view
// hierarchy to find the nearest presented UIViewController. By presenting a
// UIViewController over a child UIViewController whose
// `definesPresentationContext` property is YES, this coordinator inserts a
// UIKit presentation context upon which custom presentation can occur.
@interface OverlayPresentationContextCoordinator : ChromeCoordinator
// Initializer for an overlay container that presents overlay for `browser` at
// `modality`.
- (instancetype)initWithBaseViewController:(UIViewController*)viewController
browser:(Browser*)browser
presentationContext:
(OverlayPresentationContextImpl*)context
NS_DESIGNATED_INITIALIZER;
- (instancetype)initWithBaseViewController:(UIViewController*)viewController
browser:(Browser*)browser NS_UNAVAILABLE;
// The view controller whose presentation context is used to present overlays.
@property(nonatomic, readonly) UIViewController* viewController;
@end
#endif // IOS_CHROME_BROWSER_OVERLAYS_UI_BUNDLED_OVERLAY_PRESENTATION_CONTEXT_COORDINATOR_H_