ios/chrome/browser/ui/fullscreen/scoped_fullscreen_disabler.mm

// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#import "ios/chrome/browser/ui/fullscreen/scoped_fullscreen_disabler.h"

#if !defined(__has_feature) || !__has_feature(objc_arc)
#error "This file requires ARC support."
#endif

ScopedFullscreenDisabler::ScopedFullscreenDisabler(
    FullscreenController* controller)
    : scoped_observer_(this), controller_(controller) {
  DCHECK(controller_);
  scoped_observer_.Observe(controller);
  controller_->IncrementDisabledCounter();
}

ScopedFullscreenDisabler::~ScopedFullscreenDisabler() {
  if (controller_)
    controller_->DecrementDisabledCounter();
}

void ScopedFullscreenDisabler::FullscreenControllerWillShutDown(
    FullscreenController* controller) {
  controller_ = nullptr;
}