/*
 * Copyright (C) 2014-2018 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

#import <WebKit/WKUIDelegate.h>

#import <WebKit/WKDragDestinationAction.h>
#import <WebKit/WKSecurityOrigin.h>
#import <WebKit/WKWebViewPrivate.h>
#import <WebKit/_WKActivatedElementInfo.h>
#import <WebKit/_WKWebAuthenticationPanel.h>

@class NSData;
@class UIScrollView;
@class UIViewController;
@class WKFrameInfo;
@class _WKContextMenuElementInfo;
@class _WKActivatedElementInfo;
@class _WKElementAction;
@class _WKFrameHandle;

#if TARGET_OS_IOS
@class UIContextMenuConfiguration;
@class UIDragItem;
@class UITargetedDragPreview;
@class WKContextMenuElementInfo;
@protocol UIContextMenuInteractionCommitAnimating;
@protocol UIDragSession;
@protocol UIDropSession;
#else
typedef NS_ENUM(NSInteger, _WKAutoplayEvent) {
    _WKAutoplayEventDidPreventFromAutoplaying,
    _WKAutoplayEventDidPlayMediaWithUserGesture,
    _WKAutoplayEventDidAutoplayMediaPastThresholdWithoutUserInterference,
    _WKAutoplayEventUserDidInterfereWithPlayback,
} WK_API_AVAILABLE(macos(10.13.4));

typedef NS_ENUM(NSInteger, _WKResourceLimit) {
    _WKResourceLimitMemory,
    _WKResourceLimitCPU,
} WK_API_AVAILABLE(macos(10.13.4));

typedef NS_ENUM(NSInteger, _WKPlugInUnavailabilityReason) {
    _WKPlugInUnavailabilityReasonPluginMissing,
    _WKPlugInUnavailabilityReasonPluginCrashed,
    _WKPlugInUnavailabilityReasonInsecurePluginVersion
} WK_API_AVAILABLE(macos(10.13.4));

typedef NS_OPTIONS(NSUInteger, _WKAutoplayEventFlags) {
    _WKAutoplayEventFlagsNone = 0,
    _WKAutoplayEventFlagsHasAudio = 1 << 0,
    _WKAutoplayEventFlagsPlaybackWasPrevented = 1 << 1,
    _WKAutoplayEventFlagsMediaIsMainContent = 1 << 2,
} WK_API_AVAILABLE(macos(10.13.4));
#endif

typedef NS_ENUM(NSInteger, _WKFocusDirection) {
    _WKFocusDirectionBackward,
    _WKFocusDirectionForward,
} WK_API_AVAILABLE(macos(10.13.4), ios(12.2));

@protocol WKUIDelegatePrivate <WKUIDelegate>

#ifdef FOUNDATION_HAS_DIRECTIONAL_GEOMETRY
typedef NSEdgeInsets UIEdgeInsets;
#else
struct UIEdgeInsets;
#endif

@optional

// FIXME: This should be handled by the WKWebsiteDataStore delegate.
- (void)_webView:(WKWebView *)webView decideDatabaseQuotaForSecurityOrigin:(WKSecurityOrigin *)securityOrigin currentQuota:(unsigned long long)currentQuota currentOriginUsage:(unsigned long long)currentOriginUsage currentDatabaseUsage:(unsigned long long)currentUsage expectedUsage:(unsigned long long)expectedUsage decisionHandler:(void (^)(unsigned long long newQuota))decisionHandler;

// FIXME: This should be handled by the WKWebsiteDataStore delegate.
- (void)_webView:(WKWebView *)webView decideDatabaseQuotaForSecurityOrigin:(WKSecurityOrigin *)securityOrigin databaseName:(NSString *)databaseName displayName:(NSString *)displayName currentQuota:(unsigned long long)currentQuota currentOriginUsage:(unsigned long long)currentOriginUsage currentDatabaseUsage:(unsigned long long)currentUsage expectedUsage:(unsigned long long)expectedUsage decisionHandler:(void (^)(unsigned long long newQuota))decisionHandler;

// FIXME: This should be handled by the WKWebsiteDataStore delegate.
- (void)_webView:(WKWebView *)webView decideWebApplicationCacheQuotaForSecurityOrigin:(WKSecurityOrigin *)securityOrigin currentQuota:(unsigned long long)currentQuota totalBytesNeeded:(unsigned long long)totalBytesNeeded decisionHandler:(void (^)(unsigned long long newQuota))decisionHandler;

- (void)_webView:(WKWebView *)webView printFrame:(_WKFrameHandle *)frame;

- (void)_webViewClose:(WKWebView *)webView;
- (void)_webViewFullscreenMayReturnToInline:(WKWebView *)webView;
- (void)_webViewDidEnterFullscreen:(WKWebView *)webView WK_API_AVAILABLE(macos(10.11), ios(8.3));
- (void)_webViewDidExitFullscreen:(WKWebView *)webView WK_API_AVAILABLE(macos(10.11), ios(8.3));
- (void)_webViewRequestPointerLock:(WKWebView *)webView WK_API_AVAILABLE(macos(10.12.3));
- (void)_webViewDidRequestPointerLock:(WKWebView *)webView completionHandler:(void (^)(BOOL))completionHandler WK_API_AVAILABLE(macos(10.14.4), ios(12.2));
- (void)_webViewDidShowSafeBrowsingWarning:(WKWebView *)webView WK_API_AVAILABLE(macos(10.14.4), ios(12.2));
- (void)_webViewDidLosePointerLock:(WKWebView *)webView WK_API_AVAILABLE(macos(10.12.3));
- (void)_webView:(WKWebView *)webView hasVideoInPictureInPictureDidChange:(BOOL)hasVideoInPictureInPicture WK_API_AVAILABLE(macos(10.13), ios(11.0));

- (void)_webView:(WKWebView *)webView imageOrMediaDocumentSizeChanged:(CGSize)size WK_API_AVAILABLE(macos(10.12), ios(10.0));
- (NSDictionary *)_dataDetectionContextForWebView:(WKWebView *)webView WK_API_AVAILABLE(macos(10.12), ios(10.0));
- (void)_webView:(WKWebView *)webView requestMediaCaptureAuthorization:(_WKCaptureDevices)devices decisionHandler:(void (^)(BOOL authorized))decisionHandler WK_API_AVAILABLE(macos(WK_MAC_TBA), ios(WK_IOS_TBA));
- (void)_webView:(WKWebView *)webView includeSensitiveMediaDeviceDetails:(void (^)(BOOL includeSensitiveDetails))decisionHandler WK_API_AVAILABLE(macos(WK_MAC_TBA), ios(WK_IOS_TBA));
- (void)_webView:(WKWebView *)webView requestUserMediaAuthorizationForDevices:(_WKCaptureDevices)devices url:(NSURL *)url mainFrameURL:(NSURL *)mainFrameURL decisionHandler:(void (^)(BOOL authorized))decisionHandler WK_API_AVAILABLE(macos(10.13), ios(11.0));
- (void)_webView:(WKWebView *)webView checkUserMediaPermissionForURL:(NSURL *)url mainFrameURL:(NSURL *)mainFrameURL frameIdentifier:(NSUInteger)frameIdentifier decisionHandler:(void (^)(NSString *salt, BOOL authorized))decisionHandler WK_API_AVAILABLE(macos(10.12.3), ios(10.3));
- (void)_webView:(WKWebView *)webView mediaCaptureStateDidChange:(_WKMediaCaptureState)state WK_API_AVAILABLE(macos(10.13), ios(11.0));
- (WKDragDestinationAction)_webView:(WKWebView *)webView dragDestinationActionMaskForDraggingInfo:(id)draggingInfo WK_API_AVAILABLE(macos(10.13), ios(11.0));
- (void)_webView:(WKWebView *)webView createWebViewWithConfiguration:(WKWebViewConfiguration *)configuration forNavigationAction:(WKNavigationAction *)navigationAction windowFeatures:(WKWindowFeatures *)windowFeatures completionHandler:(void (^)(WKWebView *webView))completionHandler WK_API_AVAILABLE(macos(10.13), ios(11.0));
- (void)_webView:(WKWebView *)webView requestGeolocationPermissionForFrame:(WKFrameInfo *)frame decisionHandler:(void (^)(BOOL allowed))decisionHandler WK_API_AVAILABLE(macos(10.13.4), ios(11.3));

- (void)_webView:(WKWebView *)webView runBeforeUnloadConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(BOOL result))completionHandler WK_API_AVAILABLE(macos(10.13), ios(11.0));
- (void)_webView:(WKWebView *)webView editorStateDidChange:(NSDictionary *)editorState WK_API_AVAILABLE(macos(10.13.4), ios(11.3));

- (void)_webView:(WKWebView *)webView didRemoveAttachment:(_WKAttachment *)attachment WK_API_AVAILABLE(macos(10.13.4), ios(11.3));
- (void)_webView:(WKWebView *)webView didInsertAttachment:(_WKAttachment *)attachment withSource:(NSString *)source WK_API_AVAILABLE(macos(10.14), ios(12.0));
- (void)_webView:(WKWebView *)webView didInvalidateDataForAttachment:(_WKAttachment *)attachment WK_API_AVAILABLE(macos(10.14.4), ios(12.2));

- (void)_webView:(WKWebView *)webView didResignInputElementStrongPasswordAppearanceWithUserInfo:(id <NSSecureCoding>)userInfo WK_API_AVAILABLE(macos(10.14), ios(12.0));

- (void)_webView:(WKWebView *)webView requestStorageAccessPanelForDomain:(NSString *)requestingDomain underCurrentDomain:(NSString *)currentDomain completionHandler:(void (^)(BOOL result))completionHandler WK_API_AVAILABLE(macos(10.14), ios(12.0));

- (void)_webView:(WKWebView *)webView didChangeFontAttributes:(NSDictionary<NSString *, id> *)fontAttributes WK_API_AVAILABLE(macos(10.14.4), ios(12.2));

- (void)_webView:(WKWebView *)webView takeFocus:(_WKFocusDirection)direction WK_API_AVAILABLE(macos(10.13.4), ios(12.2));

- (void)webView:(WKWebView *)webView runWebAuthenticationPanel:(_WKWebAuthenticationPanel *)panel initiatedByFrame:(WKFrameInfo *)frame completionHandler:(void (^)(_WKWebAuthenticationPanelResult))completionHandler WK_API_AVAILABLE(macos(WK_MAC_TBA), ios(WK_IOS_TBA));

#if TARGET_OS_IPHONE
- (BOOL)_webView:(WKWebView *)webView shouldIncludeAppLinkActionsForElement:(_WKActivatedElementInfo *)element WK_API_AVAILABLE(ios(9.0));
- (NSArray *)_webView:(WKWebView *)webView actionsForElement:(_WKActivatedElementInfo *)element defaultActions:(NSArray<_WKElementAction *> *)defaultActions;
- (void)_webView:(WKWebView *)webView didNotHandleTapAsClickAtPoint:(CGPoint)point;
- (BOOL)_webView:(WKWebView *)webView shouldRequestGeolocationAuthorizationForURL:(NSURL *)url isMainFrame:(BOOL)isMainFrame mainFrameURL:(NSURL *)mainFrameURL;
- (void)_webView:(WKWebView *)webView requestGeolocationAuthorizationForURL:(NSURL *)url frame:(WKFrameInfo *)frame decisionHandler:(void (^)(BOOL authorized))decisionHandler WK_API_AVAILABLE(ios(11.0));

- (UIViewController *)_webView:(WKWebView *)webView previewViewControllerForURL:(NSURL *)url WK_API_DEPRECATED_WITH_REPLACEMENT("webView:contextMenuConfigurationForElement:completionHandler:", ios(9.0, WK_IOS_TBA));
- (void)_webView:(WKWebView *)webView commitPreviewedViewController:(UIViewController *)previewedViewController WK_API_DEPRECATED_WITH_REPLACEMENT("webView:contextMenuForElement:willCommitWithAnimator:", ios(9.0, WK_IOS_TBA));
- (void)_webView:(WKWebView *)webView willPreviewImageWithURL:(NSURL *)imageURL WK_API_DEPRECATED_WITH_REPLACEMENT("webView:contextMenuConfigurationForElement:completionHandler:", ios(9.0, WK_IOS_TBA));
- (void)_webView:(WKWebView *)webView commitPreviewedImageWithURL:(NSURL *)imageURL WK_API_DEPRECATED_WITH_REPLACEMENT("webView:contextMenuForElement:willCommitWithAnimator:", ios(9.0, WK_IOS_TBA));
- (void)_webView:(WKWebView *)webView didDismissPreviewViewController:(UIViewController *)previewedViewController committing:(BOOL)committing WK_API_DEPRECATED_WITH_REPLACEMENT("webView:contextMenuDidEndForElement:", ios(9.0, WK_IOS_TBA));
- (void)_webView:(WKWebView *)webView didDismissPreviewViewController:(UIViewController *)previewedViewController WK_API_DEPRECATED_WITH_REPLACEMENT("webView:contextMenuDidEndForElement:", ios(9.0, WK_IOS_TBA));

#if TARGET_OS_IOS
// This needs to be removed once there is an API version to continue to do callbacks for image element context menus.
- (void)_webView:(WKWebView *)webView contextMenuConfigurationForElement:(WKContextMenuElementInfo *)elementInfo completionHandler:(void(^)(UIContextMenuConfiguration *))completionHandler WK_API_AVAILABLE(ios(WK_IOS_TBA));

// These can be removed once there is an API version.
- (void)_webView:(WKWebView *)webView contextMenuForElement:(WKContextMenuElementInfo *)elementInfo willCommitWithAnimator:(id<UIContextMenuInteractionCommitAnimating>)animator WK_API_AVAILABLE(ios(WK_IOS_TBA));
- (void)_webView:(WKWebView *)webView contextMenuWillPresentForElement:(WKContextMenuElementInfo *)elementInfo WK_API_AVAILABLE(ios(WK_IOS_TBA));
- (void)_webView:(WKWebView *)webView contextMenuDidEndForElement:(WKContextMenuElementInfo *)elementInfo WK_API_AVAILABLE(ios(WK_IOS_TBA));
#endif

- (BOOL)_webView:(WKWebView *)webView showCustomSheetForElement:(_WKActivatedElementInfo *)element WK_API_DEPRECATED_WITH_REPLACEMENT("_webView:contextMenuConfigurationForElement:completionHandler:", ios(10.0, WK_IOS_TBA));
- (void)_webView:(WKWebView *)webView alternateActionForURL:(NSURL *)url WK_API_AVAILABLE(ios(10.0));
- (NSArray *)_attachmentListForWebView:(WKWebView *)webView WK_API_AVAILABLE(ios(10.0));
- (NSArray *)_attachmentListForWebView:(WKWebView *)webView sourceIsManaged:(BOOL*)sourceIsManaged WK_API_AVAILABLE(ios(10.3));
- (NSUInteger)_webView:(WKWebView *)webView indexIntoAttachmentListForElement:(_WKActivatedElementInfo *)element WK_API_AVAILABLE(ios(10.3));
- (UIEdgeInsets)_webView:(WKWebView *)webView finalObscuredInsetsForScrollView:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint *)targetContentOffset WK_API_AVAILABLE(ios(9.0));
- (UIViewController *)_webView:(WKWebView *)webView previewViewControllerForURL:(NSURL *)url defaultActions:(NSArray<_WKElementAction *> *)actions elementInfo:(_WKActivatedElementInfo *)elementInfo WK_API_DEPRECATED_WITH_REPLACEMENT("webView:contextMenuConfigurationForElement:completionHandler:", ios(9.0, WK_IOS_TBA));
- (UIViewController *)_webView:(WKWebView *)webView previewViewControllerForAnimatedImageAtURL:(NSURL *)url defaultActions:(NSArray<_WKElementAction *> *)actions elementInfo:(_WKActivatedElementInfo *)elementInfo imageSize:(CGSize)imageSize WK_API_DEPRECATED_WITH_REPLACEMENT("webView:contextMenuConfigurationForElement:completionHandler:", ios(9.0, WK_IOS_TBA));
- (UIViewController *)_presentingViewControllerForWebView:(WKWebView *)webView WK_API_AVAILABLE(ios(10.0));
- (void)_webView:(WKWebView *)webView getAlternateURLFromImage:(UIImage *)image completionHandler:(void (^)(NSURL *alternateURL, NSDictionary *userInfo))completionHandler WK_API_AVAILABLE(ios(11.0));
- (NSURL *)_webView:(WKWebView *)webView alternateURLFromImage:(UIImage *)image userInfo:(NSDictionary **)userInfo WK_API_AVAILABLE(ios(11.0));
- (UIViewController *)_webView:(WKWebView *)webView previewViewControllerForImage:(UIImage *)image alternateURL:(NSURL *)url defaultActions:(NSArray<_WKElementAction *> *)actions elementInfo:(_WKActivatedElementInfo *)elementInfo WK_API_DEPRECATED_WITH_REPLACEMENT("webView:contextMenuConfigurationForElement:completionHandler:", ios(11.0, WK_IOS_TBA));
- (NSArray *)_webView:(WKWebView *)webView adjustedDataInteractionItemProviders:(NSArray *)originalItemProviders WK_API_AVAILABLE(ios(11.0));
- (NSArray *)_webView:(WKWebView *)webView adjustedDataInteractionItemProvidersForItemProvider:(id)itemProvider representingObjects:(NSArray *)representingObjects additionalData:(NSDictionary *)additionalData WK_API_AVAILABLE(ios(11.0));
- (BOOL)_webView:(WKWebView *)webView performDataInteractionOperationWithItemProviders:(NSArray *)itemProviders WK_API_AVAILABLE(ios(11.0));
- (void)_webView:(WKWebView *)webView dataInteraction:(id)interaction sessionWillBegin:(id)session WK_API_AVAILABLE(ios(11.0));
- (void)_webView:(WKWebView *)webView dataInteraction:(id)interaction session:(id)session didEndWithOperation:(NSUInteger)operation WK_API_AVAILABLE(ios(11.0));
- (void)_webView:(WKWebView *)webView dataInteractionOperationWasHandled:(BOOL)handled forSession:(id)session itemProviders:(NSArray *)itemProviders WK_API_AVAILABLE(ios(11.0));
- (NSUInteger)_webView:(WKWebView *)webView willUpdateDataInteractionOperationToOperation:(NSUInteger)operation forSession:(id)session WK_API_AVAILABLE(ios(11.0));
#if TARGET_OS_IOS
- (UIDropProposal *)_webView:(WKWebView *)webView willUpdateDropProposalToProposal:(UIDropProposal *)proposal forSession:(id <UIDropSession>)session WK_API_AVAILABLE(ios(12.2));
- (UITargetedDragPreview *)_webView:(WKWebView *)webView previewForLiftingItem:(UIDragItem *)item session:(id <UIDragSession>)session WK_API_AVAILABLE(ios(11.0));
- (UITargetedDragPreview *)_webView:(WKWebView *)webView previewForCancellingItem:(UIDragItem *)item withDefault:(UITargetedDragPreview *)defaultPreview WK_API_AVAILABLE(ios(11.0));
- (NSArray<UIDragItem *> *)_webView:(WKWebView *)webView willPerformDropWithSession:(id <UIDropSession>)session WK_API_AVAILABLE(ios(11.0));
- (NSInteger)_webView:(WKWebView *)webView dataOwnerForDropSession:(id <UIDropSession>)session WK_API_AVAILABLE(ios(11.0));
- (NSInteger)_webView:(WKWebView *)webView dataOwnerForDragSession:(id <UIDragSession>)session WK_API_AVAILABLE(ios(11.0));
#endif
- (void)_webView:(WKWebView *)webView didChangeSafeAreaShouldAffectObscuredInsets:(BOOL)safeAreaShouldAffectObscuredInsets WK_API_AVAILABLE(ios(11.0));
- (void)_webView:(WKWebView *)webView didPresentFocusedElementViewController:(UIViewController *)controller WK_API_AVAILABLE(ios(12.0));
- (void)_webView:(WKWebView *)webView didDismissFocusedElementViewController:(UIViewController *)controller WK_API_AVAILABLE(ios(12.0));
- (BOOL)_webView:(WKWebView *)webView gestureRecognizerCouldPinch:(UIGestureRecognizer *)gestureRecognizer WK_API_AVAILABLE(ios(13.0));

/*! @abstract Allows your app to determine whether or not the given security origin should have access to the device's orientation and motion.
 @param securityOrigin The security origin which requested access to the device's orientation and motion.
 @param decisionHandler The decision handler to call once the app has made its decision. Pass YES to allow the origin access, NO otherwise.

 If you do not implement this method, access to the device's orientation and motion will be granted.
 */
- (void)_webView:(WKWebView *)webView shouldAllowDeviceOrientationAndMotionAccessRequestedByFrame:(WKFrameInfo *)requestingFrame decisionHandler:(void (^)(BOOL))decisionHandler WK_API_AVAILABLE(ios(WK_IOS_TBA));

#else // TARGET_OS_IPHONE
- (void)_prepareForImmediateActionAnimationForWebView:(WKWebView *)webView WK_API_AVAILABLE(macos(10.13.4));
- (void)_cancelImmediateActionAnimationForWebView:(WKWebView *)webView WK_API_AVAILABLE(macos(10.13.4));
- (void)_completeImmediateActionAnimationForWebView:(WKWebView *)webView WK_API_AVAILABLE(macos(10.13.4));
- (void)_showWebView:(WKWebView *)webView WK_API_AVAILABLE(macos(10.13.4));
- (void)_focusWebView:(WKWebView *)webView WK_API_AVAILABLE(macos(10.13.4));
- (void)_unfocusWebView:(WKWebView *)webView WK_API_AVAILABLE(macos(10.13.4));
- (void)_webViewDidScroll:(WKWebView *)webView WK_API_AVAILABLE(macos(10.13.4));
- (void)_webViewRunModal:(WKWebView *)webView WK_API_AVAILABLE(macos(10.13.4));
- (void)_webView:(WKWebView *)webView didNotHandleWheelEvent:(NSEvent *)event WK_API_AVAILABLE(macos(10.13.4));
- (void)_webView:(WKWebView *)webView handleAutoplayEvent:(_WKAutoplayEvent)event withFlags:(_WKAutoplayEventFlags)flags WK_API_AVAILABLE(macos(10.13.4));
- (void)_webView:(WKWebView *)webView didClickAutoFillButtonWithUserInfo:(id <NSSecureCoding>)userInfo WK_API_AVAILABLE(macos(10.13.4));
- (void)_webView:(WKWebView *)webView getToolbarsAreVisibleWithCompletionHandler:(void(^)(BOOL))completionHandler WK_API_AVAILABLE(macos(10.13.4));
- (void)_webView:(WKWebView *)webView saveDataToFile:(NSData *)data suggestedFilename:(NSString *)suggestedFilename mimeType:(NSString *)mimeType originatingURL:(NSURL *)url WK_API_AVAILABLE(macos(10.13.4));
- (CGFloat)_webViewHeaderHeight:(WKWebView *)webView WK_API_AVAILABLE(macos(10.13.4));
- (CGFloat)_webViewFooterHeight:(WKWebView *)webView WK_API_AVAILABLE(macos(10.13.4));
- (void)_webView:(WKWebView *)webView drawHeaderInRect:(CGRect)rect forPageWithTitle:(NSString *)title URL:(NSURL *)url WK_API_AVAILABLE(macos(10.13.4));
- (void)_webView:(WKWebView *)webView drawFooterInRect:(CGRect)rect forPageWithTitle:(NSString *)title URL:(NSURL *)url WK_API_AVAILABLE(macos(10.13.4));
- (void)_webView:(WKWebView *)webView requestNotificationPermissionForSecurityOrigin:(WKSecurityOrigin *)securityOrigin decisionHandler:(void (^)(BOOL))decisionHandler WK_API_AVAILABLE(macos(10.13.4));
- (void)_webView:(WKWebView *)webview mouseDidMoveOverElement:(_WKHitTestResult *)hitTestResult withFlags:(NSEventModifierFlags)flags userInfo:(id <NSSecureCoding>)userInfo;
- (void)_webView:(WKWebView *)webView didExceedBackgroundResourceLimitWhileInForeground:(_WKResourceLimit)limit WK_API_AVAILABLE(macos(10.13.4));
- (void)_webView:(WKWebView *)webView setResizable:(BOOL)isResizable WK_API_AVAILABLE(macos(10.13.4));
- (void)_webView:(WKWebView *)webView getWindowFrameWithCompletionHandler:(void (^)(CGRect))completionHandler WK_API_AVAILABLE(macos(10.13.4));
- (void)_webView:(WKWebView *)webView setWindowFrame:(CGRect)frame WK_API_AVAILABLE(macos(10.13.4));
- (void)_webView:(WKWebView *)webView unavailablePlugInButtonClickedWithReason:(_WKPlugInUnavailabilityReason)reason plugInInfo:(NSDictionary *)plugInInfo;
- (NSMenu *)_webView:(WKWebView *)webView contextMenu:(NSMenu *)menu forElement:(_WKContextMenuElementInfo *)element WK_API_DEPRECATED_WITH_REPLACEMENT("_webView:getContextMenuFromProposedMenu:forElement:userInfo:completionHandler:", macos(10.12, 10.14.4));
- (NSMenu *)_webView:(WKWebView *)webView contextMenu:(NSMenu *)menu forElement:(_WKContextMenuElementInfo *)element userInfo:(id <NSSecureCoding>)userInfo WK_API_DEPRECATED_WITH_REPLACEMENT("_webView:getContextMenuFromProposedMenu:forElement:userInfo:completionHandler:", macos(10.12, 10.14.4));
- (void)_webView:(WKWebView *)webView getContextMenuFromProposedMenu:(NSMenu *)menu forElement:(_WKContextMenuElementInfo *)element userInfo:(id <NSSecureCoding>)userInfo completionHandler:(void (^)(NSMenu *))completionHandler WK_API_AVAILABLE(macos(10.14));
- (void)_webView:(WKWebView *)webView didPerformDragOperation:(BOOL)handled WK_API_AVAILABLE(macos(10.14.4));
#endif // TARGET_OS_IPHONE

@end