Source/WebCore/dom/DocumentTouch.cpp

/*
 * Copyright (C) 2017 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
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 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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#include "config.h"
#include "DocumentTouch.h"

#if ENABLE(TOUCH_EVENTS)

#include "Document.h"
#include "Frame.h"
#include "FrameDestructionObserverInlines.h"
#include "Touch.h"
#include "TouchList.h"
#include "WindowProxy.h"

namespace WebCore {

Ref<Touch> DocumentTouch::createTouch(Document& document, RefPtr<WindowProxy>&& window, EventTarget* target, int identifier, int pageX, int pageY, int screenX, int screenY, int radiusX, int radiusY, float rotationAngle, float force)
{
    Frame* frame;
    if (window && is<Frame>(window->frame()))
        frame = downcast<Frame>(window->frame());
    else
        frame = document.frame();

    // FIXME: It's not clear from the documentation at
    // http://developer.apple.com/library/safari/#documentation/UserExperience/Reference/DocumentAdditionsReference/DocumentAdditions/DocumentAdditions.html
    // when this method should throw and nor is it by inspection of iOS behavior. It would be nice to verify any cases where it throws under iOS
    // and implement them here. See https://bugs.webkit.org/show_bug.cgi?id=47819
    return Touch::create(frame, target, identifier, screenX, screenY, pageX, pageY, radiusX, radiusY, rotationAngle, force);
}

Ref<TouchList> DocumentTouch::createTouchList(Document&, FixedVector<std::reference_wrapper<Touch>>&& touches)
{
    return TouchList::create(WTFMove(touches));
}

}

#endif