Tools/TestWebKitAPI/Tests/WebKitCocoa/RenderedImageWithOptionsPlugIn.mm

/*
 * Copyright (C) 2017 Apple Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions
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 * 1. Redistributions of source code must retain the above copyright
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 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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#import "config.h"

#import "RenderedImageWithOptionsProtocol.h"
#import <JavaScriptCore/JavaScriptCore.h>
#import <WebKit/WKWebProcessPlugIn.h>
#import <WebKit/WKWebProcessPlugInBrowserContextControllerPrivate.h>
#import <WebKit/WKWebProcessPlugInFrame.h>
#import <WebKit/WKWebProcessPlugInLoadDelegate.h>
#import <WebKit/WKWebProcessPlugInNodeHandle.h>
#import <WebKit/WKWebProcessPlugInScriptWorld.h>
#import <WebKit/_WKRemoteObjectInterface.h>
#import <WebKit/_WKRemoteObjectRegistry.h>
#import <wtf/RetainPtr.h>

@interface RenderedImageWithOptionsPlugIn : NSObject <WKWebProcessPlugIn, WKWebProcessPlugInLoadDelegate, RenderedImageWithOptionsProtocol>
@end

@implementation RenderedImageWithOptionsPlugIn {
    RetainPtr<WKWebProcessPlugInFrame> _frame;
}

- (void)webProcessPlugIn:(WKWebProcessPlugInController *)plugInController didCreateBrowserContextController:(WKWebProcessPlugInBrowserContextController *)browserContextController
{
    browserContextController.loadDelegate = self;

    _WKRemoteObjectInterface *interface = [_WKRemoteObjectInterface remoteObjectInterfaceWithProtocol:@protocol(RenderedImageWithOptionsProtocol)];
    [browserContextController._remoteObjectRegistry registerExportedObject:self interface:interface];
}

- (void)webProcessPlugInBrowserContextController:(WKWebProcessPlugInBrowserContextController *)controller didFinishLoadForFrame:(WKWebProcessPlugInFrame *)frame
{
    _frame = frame;
}

- (void)renderImageWithWidth:(NSNumber *)width completionHandler:(void (^)(CGSize))completionHandler
{
    JSContext *context = [_frame jsContextForWorld:[WKWebProcessPlugInScriptWorld normalWorld]];
    JSValue *containerValue = [context evaluateScript:@"document.querySelector('.container')"];
    WKWebProcessPlugInNodeHandle *containerNode = [WKWebProcessPlugInNodeHandle nodeHandleWithJSValue:containerValue inContext:context];
#if PLATFORM(IOS_FAMILY)
    UIImage *image = [containerNode renderedImageWithOptions:kWKSnapshotOptionsExcludeOverflow width:width];
#elif PLATFORM(MAC)
    NSImage *image = [containerNode renderedImageWithOptions:kWKSnapshotOptionsExcludeOverflow width:width];
#endif
    completionHandler(image.size);
}

@end