/*
 * Copyright (C) 2013 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.
 */

#ifndef WKBundlePageLoaderClient_h
#define WKBundlePageLoaderClient_h

#include <WebKit/WKBase.h>
#include <WebKit/WKPageLoadTypes.h>

typedef void (*WKBundlePageDidStartProvisionalLoadForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidReceiveServerRedirectForProvisionalLoadForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidFailProvisionalLoadWithErrorForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKErrorRef error, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidCommitLoadForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidDocumentFinishLoadForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidFinishLoadForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidFinishDocumentLoadForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidFinishProgressCallback)(WKBundlePageRef page, const void *clientInfo);
typedef void (*WKBundlePageDidFailLoadWithErrorForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKErrorRef error, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidSameDocumentNavigationForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKSameDocumentNavigationType type, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidReceiveTitleForFrameCallback)(WKBundlePageRef page, WKStringRef title, WKBundleFrameRef frame, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidRemoveFrameFromHierarchyCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidDisplayInsecureContentForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidRunInsecureContentForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidDetectXSSForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidFirstLayoutForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidFirstVisuallyNonEmptyLayoutForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageDidLayoutForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, const void* clientInfo);
typedef void (*WKBundlePageDidClearWindowObjectForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKBundleScriptWorldRef world, const void *clientInfo);
typedef void (*WKBundlePageDidCancelClientRedirectForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, const void *clientInfo);
typedef void (*WKBundlePageWillPerformClientRedirectForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, WKURLRef url, double delay, double date, const void *clientInfo);
typedef void (*WKBundlePageDidHandleOnloadEventsForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef frame, const void *clientInfo);
typedef bool (*WKBundlePageShouldGoToBackForwardListItemCallback)(WKBundlePageRef page, WKBundleBackForwardListItemRef item, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageGlobalObjectIsAvailableForFrameCallback)(WKBundlePageRef page, WKBundleFrameRef, WKBundleScriptWorldRef, const void* clientInfo);
typedef void (*WKBundlePageWillDisconnectDOMWindowExtensionFromGlobalObjectCallback)(WKBundlePageRef page, WKBundleDOMWindowExtensionRef, const void* clientInfo);
typedef void (*WKBundlePageDidReconnectDOMWindowExtensionToGlobalObjectCallback)(WKBundlePageRef page, WKBundleDOMWindowExtensionRef, const void* clientInfo);
typedef void (*WKBundlePageWillDestroyGlobalObjectForDOMWindowExtensionCallback)(WKBundlePageRef page, WKBundleDOMWindowExtensionRef, const void* clientInfo);
typedef bool (*WKBundlePageShouldForceUniversalAccessFromLocalURLCallback)(WKBundlePageRef, WKStringRef url, const void* clientInfo);
typedef void (*WKBundlePageDidLayoutCallback)(WKBundlePageRef page, WKLayoutMilestones milestones, WKTypeRef* userData, const void *clientInfo);
typedef void (*WKBundlePageFeaturesUsedInPageCallback)(WKBundlePageRef page, WKArrayRef featureStrings, const void *clientInfo);
typedef void (*WKBundlePageWillLoadURLRequestCallback)(WKBundlePageRef page, WKURLRequestRef request, WKTypeRef userData, const void *clientInfo);
typedef void (*WKBundlePageWillLoadDataRequestCallback)(WKBundlePageRef page, WKURLRequestRef request, WKDataRef data, WKStringRef MIMEType, WKStringRef encodingName, WKURLRef unreachableURL, WKTypeRef userData, const void *clientInfo);
typedef void (*WKBundlePageWillDestroyFrame)(WKBundlePageRef page, WKBundleFrameRef frame, const void *clientInfo);
typedef WKStringRef (*WKBundlePageUserAgentForURLCallback)(WKBundleFrameRef frame, WKURLRef url, const void *clientInfo);

typedef struct WKBundlePageLoaderClientBase {
    int                                                                     version;
    const void *                                                            clientInfo;
} WKBundlePageLoaderClientBase;

typedef struct WKBundlePageLoaderClientV0 {
    WKBundlePageLoaderClientBase                                            base;

    // Version 0.
    WKBundlePageDidStartProvisionalLoadForFrameCallback                     didStartProvisionalLoadForFrame;
    WKBundlePageDidReceiveServerRedirectForProvisionalLoadForFrameCallback  didReceiveServerRedirectForProvisionalLoadForFrame;
    WKBundlePageDidFailProvisionalLoadWithErrorForFrameCallback             didFailProvisionalLoadWithErrorForFrame;
    WKBundlePageDidCommitLoadForFrameCallback                               didCommitLoadForFrame;
    WKBundlePageDidFinishDocumentLoadForFrameCallback                       didFinishDocumentLoadForFrame;
    WKBundlePageDidFinishLoadForFrameCallback                               didFinishLoadForFrame;
    WKBundlePageDidFailLoadWithErrorForFrameCallback                        didFailLoadWithErrorForFrame;
    WKBundlePageDidSameDocumentNavigationForFrameCallback                   didSameDocumentNavigationForFrame;
    WKBundlePageDidReceiveTitleForFrameCallback                             didReceiveTitleForFrame;
    WKBundlePageDidFirstLayoutForFrameCallback                              didFirstLayoutForFrame;
    WKBundlePageDidFirstVisuallyNonEmptyLayoutForFrameCallback              didFirstVisuallyNonEmptyLayoutForFrame;
    WKBundlePageDidRemoveFrameFromHierarchyCallback                         didRemoveFrameFromHierarchy;
    WKBundlePageDidDisplayInsecureContentForFrameCallback                   didDisplayInsecureContentForFrame;
    WKBundlePageDidRunInsecureContentForFrameCallback                       didRunInsecureContentForFrame;
    WKBundlePageDidClearWindowObjectForFrameCallback                        didClearWindowObjectForFrame;
    WKBundlePageDidCancelClientRedirectForFrameCallback                     didCancelClientRedirectForFrame;
    WKBundlePageWillPerformClientRedirectForFrameCallback                   willPerformClientRedirectForFrame;
    WKBundlePageDidHandleOnloadEventsForFrameCallback                       didHandleOnloadEventsForFrame;
} WKBundlePageLoaderClientV0;

typedef struct WKBundlePageLoaderClientV1 {
    WKBundlePageLoaderClientBase                                            base;

    // Version 0.
    WKBundlePageDidStartProvisionalLoadForFrameCallback                     didStartProvisionalLoadForFrame;
    WKBundlePageDidReceiveServerRedirectForProvisionalLoadForFrameCallback  didReceiveServerRedirectForProvisionalLoadForFrame;
    WKBundlePageDidFailProvisionalLoadWithErrorForFrameCallback             didFailProvisionalLoadWithErrorForFrame;
    WKBundlePageDidCommitLoadForFrameCallback                               didCommitLoadForFrame;
    WKBundlePageDidFinishDocumentLoadForFrameCallback                       didFinishDocumentLoadForFrame;
    WKBundlePageDidFinishLoadForFrameCallback                               didFinishLoadForFrame;
    WKBundlePageDidFailLoadWithErrorForFrameCallback                        didFailLoadWithErrorForFrame;
    WKBundlePageDidSameDocumentNavigationForFrameCallback                   didSameDocumentNavigationForFrame;
    WKBundlePageDidReceiveTitleForFrameCallback                             didReceiveTitleForFrame;
    WKBundlePageDidFirstLayoutForFrameCallback                              didFirstLayoutForFrame;
    WKBundlePageDidFirstVisuallyNonEmptyLayoutForFrameCallback              didFirstVisuallyNonEmptyLayoutForFrame;
    WKBundlePageDidRemoveFrameFromHierarchyCallback                         didRemoveFrameFromHierarchy;
    WKBundlePageDidDisplayInsecureContentForFrameCallback                   didDisplayInsecureContentForFrame;
    WKBundlePageDidRunInsecureContentForFrameCallback                       didRunInsecureContentForFrame;
    WKBundlePageDidClearWindowObjectForFrameCallback                        didClearWindowObjectForFrame;
    WKBundlePageDidCancelClientRedirectForFrameCallback                     didCancelClientRedirectForFrame;
    WKBundlePageWillPerformClientRedirectForFrameCallback                   willPerformClientRedirectForFrame;
    WKBundlePageDidHandleOnloadEventsForFrameCallback                       didHandleOnloadEventsForFrame;

    // Version 1.
    WKBundlePageDidLayoutForFrameCallback                                   didLayoutForFrame;
    void *                                                                  didNewFirstVisuallyNonEmptyLayout_unavailable;
    WKBundlePageDidDetectXSSForFrameCallback                                didDetectXSSForFrame;
    WKBundlePageShouldGoToBackForwardListItemCallback                       shouldGoToBackForwardListItem;
    WKBundlePageGlobalObjectIsAvailableForFrameCallback                     globalObjectIsAvailableForFrame;
    WKBundlePageWillDisconnectDOMWindowExtensionFromGlobalObjectCallback    willDisconnectDOMWindowExtensionFromGlobalObject;
    WKBundlePageDidReconnectDOMWindowExtensionToGlobalObjectCallback        didReconnectDOMWindowExtensionToGlobalObject;
    WKBundlePageWillDestroyGlobalObjectForDOMWindowExtensionCallback        willDestroyGlobalObjectForDOMWindowExtension;
} WKBundlePageLoaderClientV1;

typedef struct WKBundlePageLoaderClientV2 {
    WKBundlePageLoaderClientBase                                            base;

    // Version 0.
    WKBundlePageDidStartProvisionalLoadForFrameCallback                     didStartProvisionalLoadForFrame;
    WKBundlePageDidReceiveServerRedirectForProvisionalLoadForFrameCallback  didReceiveServerRedirectForProvisionalLoadForFrame;
    WKBundlePageDidFailProvisionalLoadWithErrorForFrameCallback             didFailProvisionalLoadWithErrorForFrame;
    WKBundlePageDidCommitLoadForFrameCallback                               didCommitLoadForFrame;
    WKBundlePageDidFinishDocumentLoadForFrameCallback                       didFinishDocumentLoadForFrame;
    WKBundlePageDidFinishLoadForFrameCallback                               didFinishLoadForFrame;
    WKBundlePageDidFailLoadWithErrorForFrameCallback                        didFailLoadWithErrorForFrame;
    WKBundlePageDidSameDocumentNavigationForFrameCallback                   didSameDocumentNavigationForFrame;
    WKBundlePageDidReceiveTitleForFrameCallback                             didReceiveTitleForFrame;
    WKBundlePageDidFirstLayoutForFrameCallback                              didFirstLayoutForFrame;
    WKBundlePageDidFirstVisuallyNonEmptyLayoutForFrameCallback              didFirstVisuallyNonEmptyLayoutForFrame;
    WKBundlePageDidRemoveFrameFromHierarchyCallback                         didRemoveFrameFromHierarchy;
    WKBundlePageDidDisplayInsecureContentForFrameCallback                   didDisplayInsecureContentForFrame;
    WKBundlePageDidRunInsecureContentForFrameCallback                       didRunInsecureContentForFrame;
    WKBundlePageDidClearWindowObjectForFrameCallback                        didClearWindowObjectForFrame;
    WKBundlePageDidCancelClientRedirectForFrameCallback                     didCancelClientRedirectForFrame;
    WKBundlePageWillPerformClientRedirectForFrameCallback                   willPerformClientRedirectForFrame;
    WKBundlePageDidHandleOnloadEventsForFrameCallback                       didHandleOnloadEventsForFrame;

    // Version 1.
    WKBundlePageDidLayoutForFrameCallback                                   didLayoutForFrame;
    void *                                                                  didNewFirstVisuallyNonEmptyLayout_unavailable;
    WKBundlePageDidDetectXSSForFrameCallback                                didDetectXSSForFrame;
    WKBundlePageShouldGoToBackForwardListItemCallback                       shouldGoToBackForwardListItem;
    WKBundlePageGlobalObjectIsAvailableForFrameCallback                     globalObjectIsAvailableForFrame;
    WKBundlePageWillDisconnectDOMWindowExtensionFromGlobalObjectCallback    willDisconnectDOMWindowExtensionFromGlobalObject;
    WKBundlePageDidReconnectDOMWindowExtensionToGlobalObjectCallback        didReconnectDOMWindowExtensionToGlobalObject;
    WKBundlePageWillDestroyGlobalObjectForDOMWindowExtensionCallback        willDestroyGlobalObjectForDOMWindowExtension;

    // Version 2
    WKBundlePageDidFinishProgressCallback                                   didFinishProgress;
    WKBundlePageShouldForceUniversalAccessFromLocalURLCallback              shouldForceUniversalAccessFromLocalURL;
} WKBundlePageLoaderClientV2;

typedef struct WKBundlePageLoaderClientV3 {
    WKBundlePageLoaderClientBase                                            base;

    // Version 0.
    WKBundlePageDidStartProvisionalLoadForFrameCallback                     didStartProvisionalLoadForFrame;
    WKBundlePageDidReceiveServerRedirectForProvisionalLoadForFrameCallback  didReceiveServerRedirectForProvisionalLoadForFrame;
    WKBundlePageDidFailProvisionalLoadWithErrorForFrameCallback             didFailProvisionalLoadWithErrorForFrame;
    WKBundlePageDidCommitLoadForFrameCallback                               didCommitLoadForFrame;
    WKBundlePageDidFinishDocumentLoadForFrameCallback                       didFinishDocumentLoadForFrame;
    WKBundlePageDidFinishLoadForFrameCallback                               didFinishLoadForFrame;
    WKBundlePageDidFailLoadWithErrorForFrameCallback                        didFailLoadWithErrorForFrame;
    WKBundlePageDidSameDocumentNavigationForFrameCallback                   didSameDocumentNavigationForFrame;
    WKBundlePageDidReceiveTitleForFrameCallback                             didReceiveTitleForFrame;
    WKBundlePageDidFirstLayoutForFrameCallback                              didFirstLayoutForFrame;
    WKBundlePageDidFirstVisuallyNonEmptyLayoutForFrameCallback              didFirstVisuallyNonEmptyLayoutForFrame;
    WKBundlePageDidRemoveFrameFromHierarchyCallback                         didRemoveFrameFromHierarchy;
    WKBundlePageDidDisplayInsecureContentForFrameCallback                   didDisplayInsecureContentForFrame;
    WKBundlePageDidRunInsecureContentForFrameCallback                       didRunInsecureContentForFrame;
    WKBundlePageDidClearWindowObjectForFrameCallback                        didClearWindowObjectForFrame;
    WKBundlePageDidCancelClientRedirectForFrameCallback                     didCancelClientRedirectForFrame;
    WKBundlePageWillPerformClientRedirectForFrameCallback                   willPerformClientRedirectForFrame;
    WKBundlePageDidHandleOnloadEventsForFrameCallback                       didHandleOnloadEventsForFrame;

    // Version 1.
    WKBundlePageDidLayoutForFrameCallback                                   didLayoutForFrame;
    void *                                                                  didNewFirstVisuallyNonEmptyLayout_unavailable;
    WKBundlePageDidDetectXSSForFrameCallback                                didDetectXSSForFrame;
    WKBundlePageShouldGoToBackForwardListItemCallback                       shouldGoToBackForwardListItem;
    WKBundlePageGlobalObjectIsAvailableForFrameCallback                     globalObjectIsAvailableForFrame;
    WKBundlePageWillDisconnectDOMWindowExtensionFromGlobalObjectCallback    willDisconnectDOMWindowExtensionFromGlobalObject;
    WKBundlePageDidReconnectDOMWindowExtensionToGlobalObjectCallback        didReconnectDOMWindowExtensionToGlobalObject;
    WKBundlePageWillDestroyGlobalObjectForDOMWindowExtensionCallback        willDestroyGlobalObjectForDOMWindowExtension;

    // Version 2
    WKBundlePageDidFinishProgressCallback                                   didFinishProgress;
    WKBundlePageShouldForceUniversalAccessFromLocalURLCallback              shouldForceUniversalAccessFromLocalURL;

    // Version 3
    void *                                                                  didReceiveIntentForFrame_unavailable;
    void *                                                                  registerIntentServiceForFrame_unavailable;
} WKBundlePageLoaderClientV3;

typedef struct WKBundlePageLoaderClientV4 {
    WKBundlePageLoaderClientBase                                            base;

    // Version 0.
    WKBundlePageDidStartProvisionalLoadForFrameCallback                     didStartProvisionalLoadForFrame;
    WKBundlePageDidReceiveServerRedirectForProvisionalLoadForFrameCallback  didReceiveServerRedirectForProvisionalLoadForFrame;
    WKBundlePageDidFailProvisionalLoadWithErrorForFrameCallback             didFailProvisionalLoadWithErrorForFrame;
    WKBundlePageDidCommitLoadForFrameCallback                               didCommitLoadForFrame;
    WKBundlePageDidFinishDocumentLoadForFrameCallback                       didFinishDocumentLoadForFrame;
    WKBundlePageDidFinishLoadForFrameCallback                               didFinishLoadForFrame;
    WKBundlePageDidFailLoadWithErrorForFrameCallback                        didFailLoadWithErrorForFrame;
    WKBundlePageDidSameDocumentNavigationForFrameCallback                   didSameDocumentNavigationForFrame;
    WKBundlePageDidReceiveTitleForFrameCallback                             didReceiveTitleForFrame;
    WKBundlePageDidFirstLayoutForFrameCallback                              didFirstLayoutForFrame;
    WKBundlePageDidFirstVisuallyNonEmptyLayoutForFrameCallback              didFirstVisuallyNonEmptyLayoutForFrame;
    WKBundlePageDidRemoveFrameFromHierarchyCallback                         didRemoveFrameFromHierarchy;
    WKBundlePageDidDisplayInsecureContentForFrameCallback                   didDisplayInsecureContentForFrame;
    WKBundlePageDidRunInsecureContentForFrameCallback                       didRunInsecureContentForFrame;
    WKBundlePageDidClearWindowObjectForFrameCallback                        didClearWindowObjectForFrame;
    WKBundlePageDidCancelClientRedirectForFrameCallback                     didCancelClientRedirectForFrame;
    WKBundlePageWillPerformClientRedirectForFrameCallback                   willPerformClientRedirectForFrame;
    WKBundlePageDidHandleOnloadEventsForFrameCallback                       didHandleOnloadEventsForFrame;

    // Version 1.
    WKBundlePageDidLayoutForFrameCallback                                   didLayoutForFrame;
    void *                                                                  didNewFirstVisuallyNonEmptyLayout_unavailable;
    WKBundlePageDidDetectXSSForFrameCallback                                didDetectXSSForFrame;
    WKBundlePageShouldGoToBackForwardListItemCallback                       shouldGoToBackForwardListItem;
    WKBundlePageGlobalObjectIsAvailableForFrameCallback                     globalObjectIsAvailableForFrame;
    WKBundlePageWillDisconnectDOMWindowExtensionFromGlobalObjectCallback    willDisconnectDOMWindowExtensionFromGlobalObject;
    WKBundlePageDidReconnectDOMWindowExtensionToGlobalObjectCallback        didReconnectDOMWindowExtensionToGlobalObject;
    WKBundlePageWillDestroyGlobalObjectForDOMWindowExtensionCallback        willDestroyGlobalObjectForDOMWindowExtension;

    // Version 2
    WKBundlePageDidFinishProgressCallback                                   didFinishProgress;
    WKBundlePageShouldForceUniversalAccessFromLocalURLCallback              shouldForceUniversalAccessFromLocalURL;

    // Version 3
    void *                                                                  didReceiveIntentForFrame_unavailable;
    void *                                                                  registerIntentServiceForFrame_unavailable;

    // Version 4
    WKBundlePageDidLayoutCallback                                           didLayout;
} WKBundlePageLoaderClientV4;

typedef struct WKBundlePageLoaderClientV5 {
    WKBundlePageLoaderClientBase                                            base;

    // Version 0.
    WKBundlePageDidStartProvisionalLoadForFrameCallback                     didStartProvisionalLoadForFrame;
    WKBundlePageDidReceiveServerRedirectForProvisionalLoadForFrameCallback  didReceiveServerRedirectForProvisionalLoadForFrame;
    WKBundlePageDidFailProvisionalLoadWithErrorForFrameCallback             didFailProvisionalLoadWithErrorForFrame;
    WKBundlePageDidCommitLoadForFrameCallback                               didCommitLoadForFrame;
    WKBundlePageDidFinishDocumentLoadForFrameCallback                       didFinishDocumentLoadForFrame;
    WKBundlePageDidFinishLoadForFrameCallback                               didFinishLoadForFrame;
    WKBundlePageDidFailLoadWithErrorForFrameCallback                        didFailLoadWithErrorForFrame;
    WKBundlePageDidSameDocumentNavigationForFrameCallback                   didSameDocumentNavigationForFrame;
    WKBundlePageDidReceiveTitleForFrameCallback                             didReceiveTitleForFrame;
    WKBundlePageDidFirstLayoutForFrameCallback                              didFirstLayoutForFrame;
    WKBundlePageDidFirstVisuallyNonEmptyLayoutForFrameCallback              didFirstVisuallyNonEmptyLayoutForFrame;
    WKBundlePageDidRemoveFrameFromHierarchyCallback                         didRemoveFrameFromHierarchy;
    WKBundlePageDidDisplayInsecureContentForFrameCallback                   didDisplayInsecureContentForFrame;
    WKBundlePageDidRunInsecureContentForFrameCallback                       didRunInsecureContentForFrame;
    WKBundlePageDidClearWindowObjectForFrameCallback                        didClearWindowObjectForFrame;
    WKBundlePageDidCancelClientRedirectForFrameCallback                     didCancelClientRedirectForFrame;
    WKBundlePageWillPerformClientRedirectForFrameCallback                   willPerformClientRedirectForFrame;
    WKBundlePageDidHandleOnloadEventsForFrameCallback                       didHandleOnloadEventsForFrame;

    // Version 1.
    WKBundlePageDidLayoutForFrameCallback                                   didLayoutForFrame;
    void *                                                                  didNewFirstVisuallyNonEmptyLayout_unavailable;
    WKBundlePageDidDetectXSSForFrameCallback                                didDetectXSSForFrame;
    WKBundlePageShouldGoToBackForwardListItemCallback                       shouldGoToBackForwardListItem;
    WKBundlePageGlobalObjectIsAvailableForFrameCallback                     globalObjectIsAvailableForFrame;
    WKBundlePageWillDisconnectDOMWindowExtensionFromGlobalObjectCallback    willDisconnectDOMWindowExtensionFromGlobalObject;
    WKBundlePageDidReconnectDOMWindowExtensionToGlobalObjectCallback        didReconnectDOMWindowExtensionToGlobalObject;
    WKBundlePageWillDestroyGlobalObjectForDOMWindowExtensionCallback        willDestroyGlobalObjectForDOMWindowExtension;

    // Version 2
    WKBundlePageDidFinishProgressCallback                                   didFinishProgress;
    WKBundlePageShouldForceUniversalAccessFromLocalURLCallback              shouldForceUniversalAccessFromLocalURL;

    // Version 3
    void *                                                                  didReceiveIntentForFrame_unavailable;
    void *                                                                  registerIntentServiceForFrame_unavailable;

    // Version 4
    WKBundlePageDidLayoutCallback                                           didLayout;

    // Version 5
    WKBundlePageFeaturesUsedInPageCallback                                  featuresUsedInPage;
} WKBundlePageLoaderClientV5;

typedef struct WKBundlePageLoaderClientV6 {
    WKBundlePageLoaderClientBase                                            base;

    // Version 0.
    WKBundlePageDidStartProvisionalLoadForFrameCallback                     didStartProvisionalLoadForFrame;
    WKBundlePageDidReceiveServerRedirectForProvisionalLoadForFrameCallback  didReceiveServerRedirectForProvisionalLoadForFrame;
    WKBundlePageDidFailProvisionalLoadWithErrorForFrameCallback             didFailProvisionalLoadWithErrorForFrame;
    WKBundlePageDidCommitLoadForFrameCallback                               didCommitLoadForFrame;
    WKBundlePageDidFinishDocumentLoadForFrameCallback                       didFinishDocumentLoadForFrame;
    WKBundlePageDidFinishLoadForFrameCallback                               didFinishLoadForFrame;
    WKBundlePageDidFailLoadWithErrorForFrameCallback                        didFailLoadWithErrorForFrame;
    WKBundlePageDidSameDocumentNavigationForFrameCallback                   didSameDocumentNavigationForFrame;
    WKBundlePageDidReceiveTitleForFrameCallback                             didReceiveTitleForFrame;
    WKBundlePageDidFirstLayoutForFrameCallback                              didFirstLayoutForFrame;
    WKBundlePageDidFirstVisuallyNonEmptyLayoutForFrameCallback              didFirstVisuallyNonEmptyLayoutForFrame;
    WKBundlePageDidRemoveFrameFromHierarchyCallback                         didRemoveFrameFromHierarchy;
    WKBundlePageDidDisplayInsecureContentForFrameCallback                   didDisplayInsecureContentForFrame;
    WKBundlePageDidRunInsecureContentForFrameCallback                       didRunInsecureContentForFrame;
    WKBundlePageDidClearWindowObjectForFrameCallback                        didClearWindowObjectForFrame;
    WKBundlePageDidCancelClientRedirectForFrameCallback                     didCancelClientRedirectForFrame;
    WKBundlePageWillPerformClientRedirectForFrameCallback                   willPerformClientRedirectForFrame;
    WKBundlePageDidHandleOnloadEventsForFrameCallback                       didHandleOnloadEventsForFrame;

    // Version 1.
    WKBundlePageDidLayoutForFrameCallback                                   didLayoutForFrame;
    void *                                                                  didNewFirstVisuallyNonEmptyLayout_unavailable;
    WKBundlePageDidDetectXSSForFrameCallback                                didDetectXSSForFrame;
    WKBundlePageShouldGoToBackForwardListItemCallback                       shouldGoToBackForwardListItem;
    WKBundlePageGlobalObjectIsAvailableForFrameCallback                     globalObjectIsAvailableForFrame;
    WKBundlePageWillDisconnectDOMWindowExtensionFromGlobalObjectCallback    willDisconnectDOMWindowExtensionFromGlobalObject;
    WKBundlePageDidReconnectDOMWindowExtensionToGlobalObjectCallback        didReconnectDOMWindowExtensionToGlobalObject;
    WKBundlePageWillDestroyGlobalObjectForDOMWindowExtensionCallback        willDestroyGlobalObjectForDOMWindowExtension;

    // Version 2
    WKBundlePageDidFinishProgressCallback                                   didFinishProgress;
    WKBundlePageShouldForceUniversalAccessFromLocalURLCallback              shouldForceUniversalAccessFromLocalURL;

    // Version 3
    void *                                                                  didReceiveIntentForFrame_unavailable;
    void *                                                                  registerIntentServiceForFrame_unavailable;

    // Version 4
    WKBundlePageDidLayoutCallback                                           didLayout;

    // Version 5
    WKBundlePageFeaturesUsedInPageCallback                                  featuresUsedInPage;

    // Version 6
    WKBundlePageWillLoadURLRequestCallback                                  willLoadURLRequest;
    WKBundlePageWillLoadDataRequestCallback                                 willLoadDataRequest;
} WKBundlePageLoaderClientV6;

typedef struct WKBundlePageLoaderClientV7 {
    WKBundlePageLoaderClientBase                                            base;

    // Version 0.
    WKBundlePageDidStartProvisionalLoadForFrameCallback                     didStartProvisionalLoadForFrame;
    WKBundlePageDidReceiveServerRedirectForProvisionalLoadForFrameCallback  didReceiveServerRedirectForProvisionalLoadForFrame;
    WKBundlePageDidFailProvisionalLoadWithErrorForFrameCallback             didFailProvisionalLoadWithErrorForFrame;
    WKBundlePageDidCommitLoadForFrameCallback                               didCommitLoadForFrame;
    WKBundlePageDidFinishDocumentLoadForFrameCallback                       didFinishDocumentLoadForFrame;
    WKBundlePageDidFinishLoadForFrameCallback                               didFinishLoadForFrame;
    WKBundlePageDidFailLoadWithErrorForFrameCallback                        didFailLoadWithErrorForFrame;
    WKBundlePageDidSameDocumentNavigationForFrameCallback                   didSameDocumentNavigationForFrame;
    WKBundlePageDidReceiveTitleForFrameCallback                             didReceiveTitleForFrame;
    WKBundlePageDidFirstLayoutForFrameCallback                              didFirstLayoutForFrame;
    WKBundlePageDidFirstVisuallyNonEmptyLayoutForFrameCallback              didFirstVisuallyNonEmptyLayoutForFrame;
    WKBundlePageDidRemoveFrameFromHierarchyCallback                         didRemoveFrameFromHierarchy;
    WKBundlePageDidDisplayInsecureContentForFrameCallback                   didDisplayInsecureContentForFrame;
    WKBundlePageDidRunInsecureContentForFrameCallback                       didRunInsecureContentForFrame;
    WKBundlePageDidClearWindowObjectForFrameCallback                        didClearWindowObjectForFrame;
    WKBundlePageDidCancelClientRedirectForFrameCallback                     didCancelClientRedirectForFrame;
    WKBundlePageWillPerformClientRedirectForFrameCallback                   willPerformClientRedirectForFrame;
    WKBundlePageDidHandleOnloadEventsForFrameCallback                       didHandleOnloadEventsForFrame;

    // Version 1.
    WKBundlePageDidLayoutForFrameCallback                                   didLayoutForFrame;
    void *                                                                  didNewFirstVisuallyNonEmptyLayout_unavailable;
    WKBundlePageDidDetectXSSForFrameCallback                                didDetectXSSForFrame;
    WKBundlePageShouldGoToBackForwardListItemCallback                       shouldGoToBackForwardListItem;
    WKBundlePageGlobalObjectIsAvailableForFrameCallback                     globalObjectIsAvailableForFrame;
    WKBundlePageWillDisconnectDOMWindowExtensionFromGlobalObjectCallback    willDisconnectDOMWindowExtensionFromGlobalObject;
    WKBundlePageDidReconnectDOMWindowExtensionToGlobalObjectCallback        didReconnectDOMWindowExtensionToGlobalObject;
    WKBundlePageWillDestroyGlobalObjectForDOMWindowExtensionCallback        willDestroyGlobalObjectForDOMWindowExtension;

    // Version 2
    WKBundlePageDidFinishProgressCallback                                   didFinishProgress;
    WKBundlePageShouldForceUniversalAccessFromLocalURLCallback              shouldForceUniversalAccessFromLocalURL;

    // Version 3
    void *                                                                  didReceiveIntentForFrame_unavailable;
    void *                                                                  registerIntentServiceForFrame_unavailable;

    // Version 4
    WKBundlePageDidLayoutCallback                                           didLayout;

    // Version 5
    WKBundlePageFeaturesUsedInPageCallback                                  featuresUsedInPage;

    // Version 6
    WKBundlePageWillLoadURLRequestCallback                                  willLoadURLRequest;
    WKBundlePageWillLoadDataRequestCallback                                 willLoadDataRequest;

    // Version 7
    WKBundlePageWillDestroyFrame                                            willDestroyFrame;
} WKBundlePageLoaderClientV7;

typedef struct WKBundlePageLoaderClientV8 {
    WKBundlePageLoaderClientBase                                            base;
    
    // Version 0.
    WKBundlePageDidStartProvisionalLoadForFrameCallback                     didStartProvisionalLoadForFrame;
    WKBundlePageDidReceiveServerRedirectForProvisionalLoadForFrameCallback  didReceiveServerRedirectForProvisionalLoadForFrame;
    WKBundlePageDidFailProvisionalLoadWithErrorForFrameCallback             didFailProvisionalLoadWithErrorForFrame;
    WKBundlePageDidCommitLoadForFrameCallback                               didCommitLoadForFrame;
    WKBundlePageDidFinishDocumentLoadForFrameCallback                       didFinishDocumentLoadForFrame;
    WKBundlePageDidFinishLoadForFrameCallback                               didFinishLoadForFrame;
    WKBundlePageDidFailLoadWithErrorForFrameCallback                        didFailLoadWithErrorForFrame;
    WKBundlePageDidSameDocumentNavigationForFrameCallback                   didSameDocumentNavigationForFrame;
    WKBundlePageDidReceiveTitleForFrameCallback                             didReceiveTitleForFrame;
    WKBundlePageDidFirstLayoutForFrameCallback                              didFirstLayoutForFrame;
    WKBundlePageDidFirstVisuallyNonEmptyLayoutForFrameCallback              didFirstVisuallyNonEmptyLayoutForFrame;
    WKBundlePageDidRemoveFrameFromHierarchyCallback                         didRemoveFrameFromHierarchy;
    WKBundlePageDidDisplayInsecureContentForFrameCallback                   didDisplayInsecureContentForFrame;
    WKBundlePageDidRunInsecureContentForFrameCallback                       didRunInsecureContentForFrame;
    WKBundlePageDidClearWindowObjectForFrameCallback                        didClearWindowObjectForFrame;
    WKBundlePageDidCancelClientRedirectForFrameCallback                     didCancelClientRedirectForFrame;
    WKBundlePageWillPerformClientRedirectForFrameCallback                   willPerformClientRedirectForFrame;
    WKBundlePageDidHandleOnloadEventsForFrameCallback                       didHandleOnloadEventsForFrame;
    
    // Version 1.
    WKBundlePageDidLayoutForFrameCallback                                   didLayoutForFrame;
    void *                                                                  didNewFirstVisuallyNonEmptyLayout_unavailable;
    WKBundlePageDidDetectXSSForFrameCallback                                didDetectXSSForFrame;
    WKBundlePageShouldGoToBackForwardListItemCallback                       shouldGoToBackForwardListItem;
    WKBundlePageGlobalObjectIsAvailableForFrameCallback                     globalObjectIsAvailableForFrame;
    WKBundlePageWillDisconnectDOMWindowExtensionFromGlobalObjectCallback    willDisconnectDOMWindowExtensionFromGlobalObject;
    WKBundlePageDidReconnectDOMWindowExtensionToGlobalObjectCallback        didReconnectDOMWindowExtensionToGlobalObject;
    WKBundlePageWillDestroyGlobalObjectForDOMWindowExtensionCallback        willDestroyGlobalObjectForDOMWindowExtension;
    
    // Version 2
    WKBundlePageDidFinishProgressCallback                                   didFinishProgress;
    WKBundlePageShouldForceUniversalAccessFromLocalURLCallback              shouldForceUniversalAccessFromLocalURL;
    
    // Version 3
    void *                                                                  didReceiveIntentForFrame_unavailable;
    void *                                                                  registerIntentServiceForFrame_unavailable;
    
    // Version 4
    WKBundlePageDidLayoutCallback                                           didLayout;
    
    // Version 5
    WKBundlePageFeaturesUsedInPageCallback                                  featuresUsedInPage;
    
    // Version 6
    WKBundlePageWillLoadURLRequestCallback                                  willLoadURLRequest;
    WKBundlePageWillLoadDataRequestCallback                                 willLoadDataRequest;
    
    // Version 7
    WKBundlePageWillDestroyFrame                                            willDestroyFrame;
    
    // Version 8
    WKBundlePageUserAgentForURLCallback                                     userAgentForURL;
} WKBundlePageLoaderClientV8;

enum { kWKBundlePageLoaderClientCurrentVersion WK_ENUM_DEPRECATED("Use an explicit version number instead") = 8 };
typedef struct WKBundlePageLoaderClient {
    int                                                                     version;
    const void *                                                            clientInfo;

    // Version 0.
    WKBundlePageDidStartProvisionalLoadForFrameCallback                     didStartProvisionalLoadForFrame;
    WKBundlePageDidReceiveServerRedirectForProvisionalLoadForFrameCallback  didReceiveServerRedirectForProvisionalLoadForFrame;
    WKBundlePageDidFailProvisionalLoadWithErrorForFrameCallback             didFailProvisionalLoadWithErrorForFrame;
    WKBundlePageDidCommitLoadForFrameCallback                               didCommitLoadForFrame;
    WKBundlePageDidFinishDocumentLoadForFrameCallback                       didFinishDocumentLoadForFrame;
    WKBundlePageDidFinishLoadForFrameCallback                               didFinishLoadForFrame;
    WKBundlePageDidFailLoadWithErrorForFrameCallback                        didFailLoadWithErrorForFrame;
    WKBundlePageDidSameDocumentNavigationForFrameCallback                   didSameDocumentNavigationForFrame;
    WKBundlePageDidReceiveTitleForFrameCallback                             didReceiveTitleForFrame;
    WKBundlePageDidFirstLayoutForFrameCallback                              didFirstLayoutForFrame;
    WKBundlePageDidFirstVisuallyNonEmptyLayoutForFrameCallback              didFirstVisuallyNonEmptyLayoutForFrame;
    WKBundlePageDidRemoveFrameFromHierarchyCallback                         didRemoveFrameFromHierarchy;
    WKBundlePageDidDisplayInsecureContentForFrameCallback                   didDisplayInsecureContentForFrame;
    WKBundlePageDidRunInsecureContentForFrameCallback                       didRunInsecureContentForFrame;
    WKBundlePageDidClearWindowObjectForFrameCallback                        didClearWindowObjectForFrame;
    WKBundlePageDidCancelClientRedirectForFrameCallback                     didCancelClientRedirectForFrame;
    WKBundlePageWillPerformClientRedirectForFrameCallback                   willPerformClientRedirectForFrame;
    WKBundlePageDidHandleOnloadEventsForFrameCallback                       didHandleOnloadEventsForFrame;

    // Version 1.
    WKBundlePageDidLayoutForFrameCallback                                   didLayoutForFrame;
    void *                                                                  didNewFirstVisuallyNonEmptyLayout_unavailable;
    WKBundlePageDidDetectXSSForFrameCallback                                didDetectXSSForFrame;
    WKBundlePageShouldGoToBackForwardListItemCallback                       shouldGoToBackForwardListItem;
    WKBundlePageGlobalObjectIsAvailableForFrameCallback                     globalObjectIsAvailableForFrame;
    WKBundlePageWillDisconnectDOMWindowExtensionFromGlobalObjectCallback    willDisconnectDOMWindowExtensionFromGlobalObject;
    WKBundlePageDidReconnectDOMWindowExtensionToGlobalObjectCallback        didReconnectDOMWindowExtensionToGlobalObject;
    WKBundlePageWillDestroyGlobalObjectForDOMWindowExtensionCallback        willDestroyGlobalObjectForDOMWindowExtension;
    
    // Version 2
    WKBundlePageDidFinishProgressCallback                                   didFinishProgress;
    WKBundlePageShouldForceUniversalAccessFromLocalURLCallback              shouldForceUniversalAccessFromLocalURL;

    // Version 3
    void *                                                                  didReceiveIntentForFrame_unavailable;
    void *                                                                  registerIntentServiceForFrame_unavailable;

    // Version 4
    WKBundlePageDidLayoutCallback                                           didLayout;

    // Version 5
    WKBundlePageFeaturesUsedInPageCallback                                  featuresUsedInPage;
    
    // Version 6
    WKBundlePageWillLoadURLRequestCallback                                  willLoadURLRequest;
    WKBundlePageWillLoadDataRequestCallback                                 willLoadDataRequest;

    // Version 7
    WKBundlePageWillDestroyFrame                                            willDestroyFrame;
} WKBundlePageLoaderClient WK_DEPRECATED("Use an explicit versioned struct instead");

#endif // WKBundlePageLoaderClient_h