179 lines
6.1 KiB
C++
179 lines
6.1 KiB
C++
/*
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* Copyright (C) 2010 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include "UserGestureIndicator.h"
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#include "DOMWindow.h"
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#include "Document.h"
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#include "Frame.h"
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#include "ResourceLoadObserver.h"
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#include "SecurityOrigin.h"
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#include <wtf/MainThread.h>
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#include <wtf/NeverDestroyed.h>
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namespace WebCore {
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static RefPtr<UserGestureToken>& currentToken()
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{
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ASSERT(isMainThread());
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static NeverDestroyed<RefPtr<UserGestureToken>> token;
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return token;
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}
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UserGestureToken::UserGestureToken(ProcessingUserGestureState state, UserGestureType gestureType, Document* document)
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: m_state(state)
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, m_gestureType(gestureType)
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{
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if (!document || !processingUserGesture())
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return;
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// User gesture is valid for the document that received the user gesture, all of its ancestors
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// as well as all same-origin documents on the page.
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m_documentsImpactedByUserGesture.add(*document);
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auto* documentFrame = document->frame();
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if (!documentFrame)
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return;
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for (auto* ancestorFrame = documentFrame->tree().parent(); ancestorFrame; ancestorFrame = ancestorFrame->tree().parent()) {
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if (auto* ancestorDocument = ancestorFrame->document())
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m_documentsImpactedByUserGesture.add(ancestorDocument);
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}
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auto& documentOrigin = document->securityOrigin();
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for (auto* frame = &documentFrame->tree().top(); frame; frame = frame->tree().traverseNext()) {
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auto* frameDocument = frame->document();
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if (frameDocument && documentOrigin.isSameOriginDomain(frameDocument->securityOrigin()))
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m_documentsImpactedByUserGesture.add(*frameDocument);
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}
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}
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UserGestureToken::~UserGestureToken()
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{
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for (auto& observer : m_destructionObservers)
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observer(*this);
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}
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static Seconds maxIntervalForUserGestureForwardingForFetch { 10 };
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const Seconds& UserGestureToken::maximumIntervalForUserGestureForwardingForFetch()
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{
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return maxIntervalForUserGestureForwardingForFetch;
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}
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void UserGestureToken::setMaximumIntervalForUserGestureForwardingForFetchForTesting(Seconds value)
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{
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maxIntervalForUserGestureForwardingForFetch = WTFMove(value);
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}
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bool UserGestureToken::isValidForDocument(const Document& document) const
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{
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return m_documentsImpactedByUserGesture.contains(document);
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}
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UserGestureIndicator::UserGestureIndicator(std::optional<ProcessingUserGestureState> state, Document* document, UserGestureType gestureType, ProcessInteractionStyle processInteractionStyle)
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: m_previousToken { currentToken() }
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{
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ASSERT(isMainThread());
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if (state)
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currentToken() = UserGestureToken::create(state.value(), gestureType, document);
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if (state && document && currentToken()->processingUserGesture()) {
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document->updateLastHandledUserGestureTimestamp(currentToken()->startTime());
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if (processInteractionStyle == ProcessInteractionStyle::Immediate)
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ResourceLoadObserver::shared().logUserInteractionWithReducedTimeResolution(document->topDocument());
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document->topDocument().setUserDidInteractWithPage(true);
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if (auto* frame = document->frame()) {
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if (!frame->hasHadUserInteraction()) {
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for (; frame; frame = frame->tree().parent())
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frame->setHasHadUserInteraction();
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}
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}
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if (auto* window = document->domWindow())
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window->notifyActivated(currentToken()->startTime());
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}
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}
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UserGestureIndicator::UserGestureIndicator(RefPtr<UserGestureToken> token, UserGestureToken::GestureScope scope, UserGestureToken::IsPropagatedFromFetch isPropagatedFromFetch)
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{
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// Silently ignore UserGestureIndicators on non main threads.
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if (!isMainThread())
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return;
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// It is only safe to use currentToken() on the main thread.
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m_previousToken = currentToken();
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if (token) {
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token->setScope(scope);
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token->setIsPropagatedFromFetch(isPropagatedFromFetch);
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currentToken() = token;
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}
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}
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UserGestureIndicator::~UserGestureIndicator()
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{
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if (!isMainThread())
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return;
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if (auto token = currentToken()) {
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token->resetDOMPasteAccess();
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token->resetScope();
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token->resetIsPropagatedFromFetch();
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}
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currentToken() = m_previousToken;
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}
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RefPtr<UserGestureToken> UserGestureIndicator::currentUserGesture()
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{
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if (!isMainThread())
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return nullptr;
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return currentToken();
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}
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bool UserGestureIndicator::processingUserGesture(const Document* document)
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{
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if (!isMainThread())
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return false;
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if (!currentToken() || !currentToken()->processingUserGesture())
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return false;
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return !document || currentToken()->isValidForDocument(*document);
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}
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bool UserGestureIndicator::processingUserGestureForMedia()
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{
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if (!isMainThread())
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return false;
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return currentToken() ? currentToken()->processingUserGestureForMedia() : false;
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}
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}
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