blob: 55dfdc113e1b69d838d6f92978cd23ce2c233f70 [file] [log] [blame]
// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#import "ios/web/web_view/wk_web_view_util.h"
#if !defined(__has_feature) || !__has_feature(objc_arc)
#error "This file requires ARC support."
namespace web {
bool IsSafeBrowsingWarningDisplayedInWebView(WKWebView* web_view) {
// A SafeBrowsing warning is a UIScrollView that is inserted on top of
// WKWebView's scroll view. This method uses heuristics to detect this view.
// It may break in the future if WebKit's implementation of SafeBrowsing
// warnings changes.
UIView* containing_view = web_view.scrollView.superview;
if (!containing_view)
return false;
UIView* top_view = containing_view.subviews.lastObject;
if (top_view == web_view.scrollView)
return false;
return [top_view isKindOfClass:[UIScrollView class]] &&
[NSStringFromClass([top_view class]) containsString:@"Warning"] &&
top_view.subviews.count > 0 &&
isKindOfClass:[UIButton class]];