File: InspectorPageAgent.h

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/*
 * Copyright (C) 2011 Google Inc. All rights reserved.
 * Copyright (C) 2015-2016 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:
 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of Google Inc. nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
 * OWNER OR 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.
 */

#pragma once

#include <JavaScriptCore/InspectorBackendDispatchers.h>
#include <JavaScriptCore/InspectorFrontendDispatchers.h>
#include <JavaScriptCore/InspectorProtocolObjects.h>
#include <WebCore/CachedResource.h>
#include <WebCore/InspectorWebAgentBase.h>
#include <WebCore/LayoutRect.h>
#include <wtf/Platform.h>
#include <wtf/RobinHoodHashMap.h>
#include <wtf/Seconds.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/WeakRef.h>
#include <wtf/text/WTFString.h>

namespace Inspector {
enum class ResourceType;
}

namespace WebCore {

class DOMWrapperWorld;
class DocumentLoader;
class Frame;
class InspectorBackendClient;
class InspectorOverlay;
class LocalFrame;
class Page;
class RenderObject;
class FragmentedSharedBuffer;

class InspectorPageAgent final : public InspectorAgentBase, public Inspector::PageBackendDispatcherHandler {
    WTF_MAKE_NONCOPYABLE(InspectorPageAgent);
    WTF_MAKE_TZONE_ALLOCATED(InspectorPageAgent);
public:
    InspectorPageAgent(PageAgentContext&, InspectorBackendClient*, InspectorOverlay&);
    ~InspectorPageAgent();

    // InspectorAgentBase
    void didCreateFrontendAndBackend();
    void willDestroyFrontendAndBackend(Inspector::DisconnectReason);

    // PageBackendDispatcherHandler
    Inspector::Protocol::ErrorStringOr<void> enable();
    Inspector::Protocol::ErrorStringOr<void> disable();
    Inspector::Protocol::ErrorStringOr<void> reload(std::optional<bool>&& ignoreCache, std::optional<bool>&& revalidateAllResources);
    Inspector::Protocol::ErrorStringOr<void> navigate(const String& url);
    Inspector::Protocol::ErrorStringOr<void> overrideUserAgent(const String&);
    Inspector::Protocol::ErrorStringOr<void> overrideSetting(Inspector::Protocol::Page::Setting, std::optional<bool>&& value);
    Inspector::Protocol::ErrorStringOr<void> overrideUserPreference(Inspector::Protocol::Page::UserPreferenceName, std::optional<Inspector::Protocol::Page::UserPreferenceValue>&&);
    Inspector::Protocol::ErrorStringOr<Ref<JSON::ArrayOf<Inspector::Protocol::Page::Cookie>>> getCookies();
    Inspector::Protocol::ErrorStringOr<void> setCookie(Ref<JSON::Object>&&, std::optional<bool>&& shouldPartition);
    Inspector::Protocol::ErrorStringOr<void> deleteCookie(const String& cookieName, const String& url);
    Inspector::Protocol::ErrorStringOr<Ref<Inspector::Protocol::Page::FrameResourceTree>> getResourceTree();
    Inspector::Protocol::ErrorStringOr<std::tuple<String, bool /* base64Encoded */>> getResourceContent(const Inspector::Protocol::Network::FrameId&, const String& url);
    Inspector::Protocol::ErrorStringOr<void> setBootstrapScript(const String& source);
    Inspector::Protocol::ErrorStringOr<Ref<JSON::ArrayOf<Inspector::Protocol::GenericTypes::SearchMatch>>> searchInResource(const Inspector::Protocol::Network::FrameId&, const String& url, const String& query, std::optional<bool>&& caseSensitive, std::optional<bool>&& isRegex, const Inspector::Protocol::Network::RequestId&);
    Inspector::Protocol::ErrorStringOr<Ref<JSON::ArrayOf<Inspector::Protocol::Page::SearchResult>>> searchInResources(const String&, std::optional<bool>&& caseSensitive, std::optional<bool>&& isRegex);
#if !PLATFORM(IOS_FAMILY)
    Inspector::Protocol::ErrorStringOr<void> setShowRulers(bool);
#endif
    Inspector::Protocol::ErrorStringOr<void> setShowPaintRects(bool);
    Inspector::Protocol::ErrorStringOr<void> setEmulatedMedia(const String&);
    Inspector::Protocol::ErrorStringOr<String> snapshotNode(Inspector::Protocol::DOM::NodeId);
    Inspector::Protocol::ErrorStringOr<String> snapshotRect(int x, int y, int width, int height, Inspector::Protocol::Page::CoordinateSystem);
#if ENABLE(WEB_ARCHIVE) && USE(CF)
    Inspector::Protocol::ErrorStringOr<String> archive();
#endif
#if !PLATFORM(COCOA)
    Inspector::Protocol::ErrorStringOr<void> setScreenSizeOverride(std::optional<int>&& width, std::optional<int>&& height);
#endif

    // InspectorInstrumentation
    void domContentEventFired();
    void loadEventFired();
    void frameNavigated(LocalFrame&);
    void frameDetached(LocalFrame&);
    void loaderDetachedFromFrame(DocumentLoader&);
    void accessibilitySettingsDidChange();
    void defaultUserPreferencesDidChange();
#if ENABLE(DARK_MODE_CSS)
    void defaultAppearanceDidChange();
#endif
    void applyUserAgentOverride(String&);
    void applyEmulatedMedia(AtomString&);
    void didClearWindowObjectInWorld(LocalFrame&, DOMWrapperWorld&);
    void didPaint(RenderObject&, const LayoutRect&);
    void didLayout();
    void didScroll();
    void didRecalculateStyle();

    Frame* frameForId(const Inspector::Protocol::Network::FrameId&);
    WEBCORE_EXPORT String frameId(Frame*);
    String loaderId(DocumentLoader*);
    LocalFrame* assertFrame(Inspector::Protocol::ErrorString&, const Inspector::Protocol::Network::FrameId&);

private:
    double timestamp();

    Ref<InspectorOverlay> protectedOverlay() const;

    void overridePrefersReducedMotion(std::optional<Inspector::Protocol::Page::UserPreferenceValue>&&);
    void overridePrefersContrast(std::optional<Inspector::Protocol::Page::UserPreferenceValue>&&);
    void overridePrefersColorScheme(std::optional<Inspector::Protocol::Page::UserPreferenceValue>&&);

    Ref<Inspector::Protocol::Page::Frame> buildObjectForFrame(LocalFrame*);
    Ref<Inspector::Protocol::Page::FrameResourceTree> buildObjectForFrameTree(LocalFrame*);

    const UniqueRef<Inspector::PageFrontendDispatcher> m_frontendDispatcher;
    const Ref<Inspector::PageBackendDispatcher> m_backendDispatcher;

    WeakRef<Page> m_inspectedPage;
    InspectorBackendClient* m_client { nullptr };
    WeakRef<InspectorOverlay> m_overlay;

    WeakHashMap<Frame, String> m_frameToIdentifier;
    MemoryCompactRobinHoodHashMap<String, WeakPtr<Frame>> m_identifierToFrame;
    HashMap<DocumentLoader*, String> m_loaderToIdentifier;
    String m_userAgentOverride;
    AtomString m_emulatedMedia;
    String m_bootstrapScript;
    bool m_isFirstLayoutAfterOnLoad { false };
    bool m_showPaintRects { false };
};

} // namespace WebCore