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/*
* Copyright (C) 2023 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.
*/
#include "config.h"
#include "WebEventModifier.h"
#include <WebCore/Document.h>
#include <WebCore/LocalDOMWindow.h>
#include <WebCore/NavigationAction.h>
#include <WebCore/PlatformEvent.h>
#include <wtf/OptionSet.h>
namespace WebKit {
OptionSet<WebEventModifier> modifiersFromPlatformEventModifiers(OptionSet<WebCore::PlatformEventModifier> modifiers)
{
OptionSet<WebEventModifier> result;
if (modifiers.contains(WebCore::PlatformEventModifier::ShiftKey))
result.add(WebEventModifier::ShiftKey);
if (modifiers.contains(WebCore::PlatformEventModifier::ControlKey))
result.add(WebEventModifier::ControlKey);
if (modifiers.contains(WebCore::PlatformEventModifier::AltKey))
result.add(WebEventModifier::AltKey);
if (modifiers.contains(WebCore::PlatformEventModifier::MetaKey))
result.add(WebEventModifier::MetaKey);
if (modifiers.contains(WebCore::PlatformEventModifier::CapsLockKey))
result.add(WebEventModifier::CapsLockKey);
return result;
}
OptionSet<WebEventModifier> modifiersForNavigationAction(const WebCore::NavigationAction& navigationAction)
{
OptionSet<WebEventModifier> modifiers;
if (auto keyStateEventData = navigationAction.keyStateEventData()) {
RefPtr document = navigationAction.requester() ? WebCore::Document::allDocumentsMap().get(navigationAction.requester()->documentIdentifier) : nullptr;
RefPtr domWindow = document ? document->window() : nullptr;
auto lastMouseClickEvent = domWindow ? domWindow->consumeLastUserClickEvent() : std::nullopt;
// For security reasons, we normally only set modifiers when the navigation comes from a trusted event.
// However, a common pattern on the web is to intercept the mouse click event, do some logic (e.g. link tracking),
// and then fire a "cloned" version of the event, which is no longer trusted. In such case, we want to carry forward
// the modifiers from the original event as this is what the user intended. This is particularly important when the
// user CMD + clicks a link and rightfully expects the link to open in a new tab.
auto shouldMaintainModifier = [isTrusted = keyStateEventData->isTrusted, lastMouseClickEvent](WebCore::PlatformEventModifier modifier) {
if (isTrusted)
return true;
if (!lastMouseClickEvent || (MonotonicTime::now() - lastMouseClickEvent->time) > WebCore::LocalDOMWindow::transientActivationDuration())
return false;
return lastMouseClickEvent->modifiers.contains(modifier);
};
if (keyStateEventData->shiftKey && shouldMaintainModifier(WebCore::PlatformEventModifier::ShiftKey))
modifiers.add(WebEventModifier::ShiftKey);
if (keyStateEventData->ctrlKey && shouldMaintainModifier(WebCore::PlatformEventModifier::ControlKey))
modifiers.add(WebEventModifier::ControlKey);
if (keyStateEventData->altKey && shouldMaintainModifier(WebCore::PlatformEventModifier::AltKey))
modifiers.add(WebEventModifier::AltKey);
if (keyStateEventData->metaKey && shouldMaintainModifier(WebCore::PlatformEventModifier::MetaKey))
modifiers.add(WebEventModifier::MetaKey);
}
return modifiers;
}
} // namespace WebKit
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