WebKit macOS 10.14 to 10.15 API Differences

DOMMouseEvent.h
Modified DOMMouseEvent.button
Declaration
From@property (readonly) unsigned short button
To@property (readonly) short button

NSAttributedString.h
Added NSReadAccessURLDocumentOption
Added NSAttributedStringCompletionHandler
Added NSAttributedString (NSAttributedStringWebKitAdditions)
Added +[NSAttributedString loadFromHTMLWithRequest:options:completionHandler:]
Added +[NSAttributedString loadFromHTMLWithFileURL:options:completionHandler:]
Added +[NSAttributedString loadFromHTMLWithString:options:completionHandler:]
Added +[NSAttributedString loadFromHTMLWithData:options:completionHandler:]
WKError.h
Added WKErrorAttributedStringContentFailedToLoad
Added WKErrorAttributedStringContentLoadTimedOut
WKFoundation.h
Removed #def WK_API_ENABLED
WKNavigation.h
Added WKNavigation.effectiveContentMode
WKNavigationDelegate.h
Added -[WKNavigationDelegate webView:decidePolicyForNavigationAction:preferences:decisionHandler:]
WKPreferences.h
Added WKPreferences.fraudulentWebsiteWarningEnabled
Modified WKPreferences.javaEnabled
AvailabilityDeprecation Message
FromAvailablenone
ToDeprecatedJava is no longer supported

Modified WKPreferences.plugInsEnabled
AvailabilityDeprecation Message
FromAvailablenone
ToDeprecatedPlug-ins are no longer supported

WKSnapshotConfiguration.h
Added WKSnapshotConfiguration.afterScreenUpdates
WKWebpagePreferences.h
Added WKContentMode
Added WKContentModeRecommended
Added WKContentModeMobile
Added WKContentModeDesktop
Added WKWebpagePreferences
Added WKWebpagePreferences.preferredContentMode
WKWebViewConfiguration.h
Added WKWebViewConfiguration.defaultWebpagePreferences