Attachment 347711 Details for Bug 188777 – WPE build fix

[patch] WPE build fix

bug-188777-20180821152743.patch (text/plain), 47.91 KB, created by Ryosuke Niwa on 2018-08-21 15:27:44 PDT

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Creator: Ryosuke Niwa

Created: 2018-08-21 15:27:44 PDT

Size: 47.91 KB

patch

obsolete

>Subversion Revision: 235099
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 48c8b60d70b9586778527c53bfb877fdbc0e14e6..a1e7528f80e91d3e82fbce4f65576b665204e843 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,70 @@
>+2018-08-21  Ryosuke Niwa  <rniwa@webkit.org>
>+
>+        Replace booleans for modifier keys in UIEventWithKeyState with OptionSet<Modifier>
>+        https://bugs.webkit.org/show_bug.cgi?id=188777
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Replaced boolean arguments and instance variables for modififer keys (ctrl, alt, shift, and meta keys) in
>+        UIEventWithKeyState with OptionSet<Modifier> and isSimulated boolean in MouseRelatedEvent with IsSimulated
>+        enum class.
>+
>+        Also made movementDelta always compiled instead of only when ENABLE(POINTER_LOCK) to simplify the code.
>+
>+        No new tests since there should be no observable behavioral change.
>+
>+        * dom/Element.cpp:
>+        (WebCore::Element::dispatchMouseEvent):
>+        * dom/KeyboardEvent.cpp:
>+        (WebCore::KeyboardEvent::KeyboardEvent):
>+        (WebCore::KeyboardEvent::initKeyboardEvent): Call setModifierKeys.
>+        * dom/MouseEvent.cpp:
>+        (WebCore::MouseEvent::create):
>+        (WebCore::MouseEvent::MouseEvent):
>+        (WebCore::MouseEvent::initMouseEvent): Ditto.
>+        * dom/MouseEvent.h:
>+        * dom/MouseRelatedEvent.cpp:
>+        (WebCore::MouseRelatedEvent::MouseRelatedEvent): Added a new variant which takes the minimum arguments
>+        for gesture & touch events. In those events, detail is always set to 0, movementDelta is always set to 0,0,
>+        and they are never simulated.
>+        * dom/MouseRelatedEvent.h:
>+        (WebCore::MouseRelatedEvent::IsSimulated): Added.
>+        * dom/SimulatedClick.cpp:
>+        (WebCore::SimulatedMouseEvent::SimulatedMouseEvent): Get OptionSet<Modifier> out of the underlying event
>+        instead of manually setting each key state. This code now preserves the state of caps lock and alt-graph
>+        keys but this is not observable because we have yet to implement getModifierState on MouseEvent.
>+        (WebCore::SimulatedMouseEvent::modifiersFromUnderlyingEvent): Added.
>+        * dom/TouchEvent.cpp:
>+        (WebCore::TouchEvent::TouchEvent):
>+        * dom/TouchEvent.h:
>+        * dom/UIEventWithKeyState.h:
>+        (WebCore::UIEventWithKeyState::Modifier): Alias to PlatformEvent::Modifier.
>+        (WebCore::UIEventWithKeyState::ctrlKey const): Updated to use m_modifiers.
>+        (WebCore::UIEventWithKeyState::shiftKey const): Ditto.
>+        (WebCore::UIEventWithKeyState::altKey const): Ditto.
>+        (WebCore::UIEventWithKeyState::metaKey const): Ditto.
>+        (WebCore::UIEventWithKeyState::altGraphKey const): Ditto.
>+        (WebCore::UIEventWithKeyState::capsLockKey const): Ditto.
>+        (WebCore::UIEventWithKeyState::modifierKeys): Added.
>+        (WebCore::UIEventWithKeyState::UIEventWithKeyState): Now takes OptionSet<Modifier>.
>+        (WebCore::UIEventWithKeyState::setModifierKeys): Added. Used by init*Event functions in subclasses. Note that
>+        these functions preseve the states of alt-graph and caps lock keys to match the existing behaviors in this
>+        cleanup patch but they don't match behaviors of Chrome or Firefox.
>+        (WebCore::UIEventWithKeyState::modifiersFromInitializer): Added.
>+        * dom/WheelEvent.cpp:
>+        (WebCore::WheelEvent::WheelEvent): Simulated::No corresponds to the last boolean being false.
>+        * page/EventHandler.cpp:
>+        (WebCore::EventHandler::dispatchDragEvent):
>+        (WebCore::EventHandler::handleTouchEvent):
>+        * platform/PlatformEvent.h:
>+        (WebCore::PlatformEvent::Modifier): Added AltGraphKey.
>+        * platform/mac/PlatformEventFactoryMac.h:
>+        (WebCore::modifiersForEvent): Exported to be used in [WebPDFView PDFViewWillClickOnLink:withURL:].
>+        * platform/mac/PlatformEventFactoryMac.mm:
>+        (WebCore::modifiersForEvent):
>+        * testing/Internals.cpp:
>+        (WebCore::Internals::accessKeyModifiers const):
>+
> 2018-08-20  Michael Catanzaro  <mcatanzaro@igalia.com>
> 
>         [CMake] Sync unified build with Cocoa ports
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index 100f12ce604731c39efdf27c9d14a051ce88be42..b7ee2e172f1d60ced8c1d89d69cc77c437adbc8f 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,15 @@
>+2018-08-21  Ryosuke Niwa  <rniwa@webkit.org>
>+
>+        Replace booleans for modifier keys in UIEventWithKeyState with OptionSet<Modifier>
>+        https://bugs.webkit.org/show_bug.cgi?id=188777
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Added two FIXMEs.
>+
>+        * WebProcess/WebPage/WebPage.cpp:
>+        (WebKit::WebPage::navigateToPDFLinkWithSimulatedClick):
>+
> 2018-08-20  Michael Catanzaro  <mcatanzaro@igalia.com>
> 
>         [CMake] Sync unified build with Cocoa ports
>diff --git a/Source/WebKitLegacy/ios/ChangeLog b/Source/WebKitLegacy/ios/ChangeLog
>index 2fe7fe9fbdd0bda3eb6e3971d1c243406736fef8..43feece4e9ede85f1cbd6cf49e3bf3348064ccff 100644
>--- a/Source/WebKitLegacy/ios/ChangeLog
>+++ b/Source/WebKitLegacy/ios/ChangeLog
>@@ -1,3 +1,16 @@
>+2018-08-21  Ryosuke Niwa  <rniwa@webkit.org>
>+
>+        Replace booleans for modifier keys in UIEventWithKeyState with OptionSet<Modifier>
>+        https://bugs.webkit.org/show_bug.cgi?id=188777
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Create MouseEvent::create with IsSimulated set to Yes; correspoding to the last argument
>+        being "true" before the code change.
>+
>+        * WebView/WebPDFViewPlaceholder.mm:
>+        (-[WebPDFViewPlaceholder simulateClickOnLinkToURL:]):
>+
> 2018-08-16  Ryosuke Niwa  <rniwa@webkit.org>
> 
>         Replace canBubble and cancelable booleans in Event by enum classes
>diff --git a/Source/WebKitLegacy/mac/ChangeLog b/Source/WebKitLegacy/mac/ChangeLog
>index 98581661ba40994932aab0d77b0c4a274a97f6cd..da254b323f1db2573bb1f24f7706b08b34d8cfe9 100644
>--- a/Source/WebKitLegacy/mac/ChangeLog
>+++ b/Source/WebKitLegacy/mac/ChangeLog
>@@ -1,3 +1,18 @@
>+2018-08-21  Ryosuke Niwa  <rniwa@webkit.org>
>+
>+        Replace booleans for modifier keys in UIEventWithKeyState with OptionSet<Modifier>
>+        https://bugs.webkit.org/show_bug.cgi?id=188777
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Create MouseEvent::create with IsSimulated set to Yes; correspoding to the last argument
>+        being "true" before the code change.
>+
>+        Use modifiersForEvent to convert [nsEvent modifierFlags] to OptionSet<Modifier>.
>+
>+        * WebView/WebPDFView.mm:
>+        (-[WebPDFView PDFViewWillClickOnLink:withURL:]):
>+
> 2018-08-17  Alex Christensen  <achristensen@webkit.org>
> 
>         Add some plumbing for safe browsing
>diff --git a/Source/WebCore/dom/Element.cpp b/Source/WebCore/dom/Element.cpp
>index c3ba8a7e5c99b6f126782cb7c25b5f57ebceae9e..d9cbf3821f7f9b7f6d639cf8fe50a0256e85d00a 100644
>--- a/Source/WebCore/dom/Element.cpp
>+++ b/Source/WebCore/dom/Element.cpp
>@@ -290,12 +290,12 @@ bool Element::dispatchMouseEvent(const PlatformMouseEvent& platformEvent, const
>         // Special case: If it's a double click event, we also send the dblclick event. This is not part
>         // of the DOM specs, but is used for compatibility with the ondblclick="" attribute. This is treated
>         // as a separate event in other DOM-compliant browsers like Firefox, and so we do the same.
>+        // FIXME: Is it okay that mouseEvent may have been mutated by scripts via initMouseEvent in dispatchEvent above?
>         Ref<MouseEvent> doubleClickEvent = MouseEvent::create(eventNames().dblclickEvent,
>             mouseEvent->bubbles() ? Event::CanBubble::Yes : Event::CanBubble::No, mouseEvent->cancelable() ? Event::IsCancelable::Yes : Event::IsCancelable::No,
>             mouseEvent->view(), mouseEvent->detail(),
>             mouseEvent->screenX(), mouseEvent->screenY(), mouseEvent->clientX(), mouseEvent->clientY(),
>-            mouseEvent->ctrlKey(), mouseEvent->altKey(), mouseEvent->shiftKey(), mouseEvent->metaKey(),
>-            mouseEvent->button(), mouseEvent->buttons(), mouseEvent->syntheticClickType(), relatedTarget);
>+            mouseEvent->modifierKeys(), mouseEvent->button(), mouseEvent->buttons(), mouseEvent->syntheticClickType(), relatedTarget);
> 
>         if (mouseEvent->defaultHandled())
>             doubleClickEvent->setDefaultHandled();
>diff --git a/Source/WebCore/dom/KeyboardEvent.cpp b/Source/WebCore/dom/KeyboardEvent.cpp
>index ad4dce4576b48e3375f55a5a0d0357b88d202a0c..3b5e9c9849988ad25336611ea33e2a8d4e7e3526 100644
>--- a/Source/WebCore/dom/KeyboardEvent.cpp
>+++ b/Source/WebCore/dom/KeyboardEvent.cpp
>@@ -95,8 +95,7 @@ inline KeyboardEvent::KeyboardEvent() = default;
> 
> inline KeyboardEvent::KeyboardEvent(const PlatformKeyboardEvent& key, RefPtr<WindowProxy>&& view)
>     : UIEventWithKeyState(eventTypeForKeyboardEventType(key.type()), CanBubble::Yes, IsCancelable::Yes,
>-        key.timestamp().approximateMonotonicTime(), view.copyRef(), 0, key.ctrlKey(), key.altKey(), key.shiftKey(), key.metaKey(),
>-        false, key.modifiers().contains(PlatformEvent::Modifier::CapsLockKey))
>+        key.timestamp().approximateMonotonicTime(), view.copyRef(), 0, key.modifiers())
>     , m_underlyingPlatformEvent(std::make_unique<PlatformKeyboardEvent>(key))
> #if ENABLE(KEYBOARD_KEY_ATTRIBUTE)
>     , m_key(key.key())
>@@ -160,11 +159,8 @@ void KeyboardEvent::initKeyboardEvent(const AtomicString& type, bool canBubble,
> 
>     m_keyIdentifier = keyIdentifier;
>     m_location = location;
>-    m_ctrlKey = ctrlKey;
>-    m_shiftKey = shiftKey;
>-    m_altKey = altKey;
>-    m_metaKey = metaKey;
>-    m_altGraphKey = altGraphKey;
>+
>+    setModifierKeys(ctrlKey, altKey, shiftKey, metaKey, altGraphKey);
> 
>     m_charCode = std::nullopt;
>     m_isComposing = false;
>diff --git a/Source/WebCore/dom/MouseEvent.cpp b/Source/WebCore/dom/MouseEvent.cpp
>index b267de2bd08f6ed641ff6e3fb159ebfb8e7a9c0e..7f8476440f261425ae84b685afaf43ac99da709f 100644
>--- a/Source/WebCore/dom/MouseEvent.cpp
>+++ b/Source/WebCore/dom/MouseEvent.cpp
>@@ -50,46 +50,37 @@ Ref<MouseEvent> MouseEvent::create(const AtomicString& eventType, RefPtr<WindowP
>     auto isCancelable = eventType != eventNames().mousemoveEvent && !isMouseEnterOrLeave ? IsCancelable::Yes : IsCancelable::No;
>     auto canBubble = !isMouseEnterOrLeave ? CanBubble::Yes : CanBubble::No;
> 
>-    return MouseEvent::create(eventType, canBubble, isCancelable, event.timestamp().approximateMonotonicTime(), WTFMove(view),
>-        detail, event.globalPosition().x(), event.globalPosition().y(), event.position().x(), event.position().y(),
>+    return MouseEvent::create(eventType, canBubble, isCancelable, event.timestamp().approximateMonotonicTime(), WTFMove(view), detail,
>+        event.globalPosition(), event.position(),
> #if ENABLE(POINTER_LOCK)
>-        event.movementDelta().x(), event.movementDelta().y(),
>+        event.movementDelta(),
>+#else
>+        { },
> #endif
>-        event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(), event.button(), event.buttons(),
>-        relatedTarget, event.force(), event.syntheticClickType());
>+        event.modifiers(), event.button(), event.buttons(), relatedTarget, event.force(), event.syntheticClickType());
> }
> 
>-Ref<MouseEvent> MouseEvent::create(const AtomicString& type, CanBubble canBubble, IsCancelable cancelable, MonotonicTime timestamp, RefPtr<WindowProxy>&& view, int detail, int screenX, int screenY, int pageX, int pageY,
>-#if ENABLE(POINTER_LOCK)
>-    int movementX, int movementY,
>-#endif
>-    bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, unsigned short buttons, EventTarget* relatedTarget, double force, unsigned short syntheticClickType, DataTransfer* dataTransfer, bool isSimulated)
>+Ref<MouseEvent> MouseEvent::create(const AtomicString& type, CanBubble canBubble, IsCancelable cancelable, MonotonicTime timestamp, RefPtr<WindowProxy>&& view, int detail,
>+    const IntPoint& screenLocation, const IntPoint& windowLocation, const IntPoint& movementDelta, OptionSet<Modifier> modifiers, unsigned short button, unsigned short buttons,
>+    EventTarget* relatedTarget, double force, unsigned short syntheticClickType, DataTransfer* dataTransfer, IsSimulated isSimulated)
> {
>-    return adoptRef(*new MouseEvent(type, canBubble, cancelable, timestamp, WTFMove(view),
>-        detail, { screenX, screenY }, { pageX, pageY },
>-#if ENABLE(POINTER_LOCK)
>-        { movementX, movementY },
>-#endif
>-        ctrlKey, altKey, shiftKey, metaKey, button, buttons, relatedTarget, force, syntheticClickType, dataTransfer, isSimulated));
>+    return adoptRef(*new MouseEvent(type, canBubble, cancelable, timestamp, WTFMove(view), detail,
>+        screenLocation, windowLocation, movementDelta, modifiers, button, buttons, relatedTarget, force, syntheticClickType, dataTransfer, isSimulated));
> }
> 
>-Ref<MouseEvent> MouseEvent::create(const AtomicString& eventType, CanBubble canBubble, IsCancelable cancelable, RefPtr<WindowProxy>&& view, int detail, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, unsigned short buttons, unsigned short syntheticClickType, EventTarget* relatedTarget)
>+Ref<MouseEvent> MouseEvent::create(const AtomicString& eventType, CanBubble canBubble, IsCancelable cancelable, RefPtr<WindowProxy>&& view, int detail,
>+    int screenX, int screenY, int clientX, int clientY, OptionSet<Modifier> modifiers, unsigned short button, unsigned short buttons,
>+    unsigned short syntheticClickType, EventTarget* relatedTarget)
> {
>-    return adoptRef(*new MouseEvent(eventType, canBubble, cancelable, WTFMove(view), detail, { screenX, screenY }, { clientX, clientY }, ctrlKey, altKey, shiftKey, metaKey, button, buttons, syntheticClickType, relatedTarget));
>+    return adoptRef(*new MouseEvent(eventType, canBubble, cancelable, WTFMove(view), detail, { screenX, screenY }, { clientX, clientY }, modifiers, button, buttons, syntheticClickType, relatedTarget));
> }
> 
> MouseEvent::MouseEvent() = default;
> 
>-MouseEvent::MouseEvent(const AtomicString& eventType, CanBubble canBubble, IsCancelable cancelable, MonotonicTime timestamp, RefPtr<WindowProxy>&& view, int detail, const IntPoint& screenLocation, const IntPoint& windowLocation,
>-#if ENABLE(POINTER_LOCK)
>-        const IntPoint& movementDelta,
>-#endif
>-        bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, unsigned short buttons, EventTarget* relatedTarget, double force, unsigned short syntheticClickType, DataTransfer* dataTransfer, bool isSimulated)
>-    : MouseRelatedEvent(eventType, canBubble, cancelable, timestamp, WTFMove(view), detail, screenLocation, windowLocation,
>-#if ENABLE(POINTER_LOCK)
>-        movementDelta,
>-#endif
>-        ctrlKey, altKey, shiftKey, metaKey, isSimulated)
>+MouseEvent::MouseEvent(const AtomicString& eventType, CanBubble canBubble, IsCancelable cancelable, MonotonicTime timestamp, RefPtr<WindowProxy>&& view, int detail,
>+    const IntPoint& screenLocation, const IntPoint& windowLocation, const IntPoint& movementDelta, OptionSet<Modifier> modifiers, unsigned short button, unsigned short buttons,
>+    EventTarget* relatedTarget, double force, unsigned short syntheticClickType, DataTransfer* dataTransfer, IsSimulated isSimulated)
>+    : MouseRelatedEvent(eventType, canBubble, cancelable, timestamp, WTFMove(view), detail, screenLocation, windowLocation, movementDelta, modifiers, isSimulated)
>     , m_button(button == (unsigned short)-1 ? 0 : button)
>     , m_buttons(buttons)
>     , m_syntheticClickType(button == (unsigned short)-1 ? 0 : syntheticClickType)
>@@ -100,12 +91,9 @@ MouseEvent::MouseEvent(const AtomicString& eventType, CanBubble canBubble, IsCan
> {
> }
> 
>-MouseEvent::MouseEvent(const AtomicString& eventType, CanBubble canBubble, IsCancelable cancelable, RefPtr<WindowProxy>&& view, int detail, const IntPoint& screenLocation, const IntPoint& clientLocation, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, unsigned short buttons, unsigned short syntheticClickType, EventTarget* relatedTarget)
>-    : MouseRelatedEvent(eventType, canBubble, cancelable, MonotonicTime::now(), WTFMove(view), detail, screenLocation, { },
>-#if ENABLE(POINTER_LOCK)
>-        { },
>-#endif
>-        ctrlKey, altKey, shiftKey, metaKey, false)
>+MouseEvent::MouseEvent(const AtomicString& eventType, CanBubble canBubble, IsCancelable cancelable, RefPtr<WindowProxy>&& view, int detail,
>+    const IntPoint& screenLocation, const IntPoint& clientLocation, OptionSet<Modifier> modifiers, unsigned short button, unsigned short buttons, unsigned short syntheticClickType, EventTarget* relatedTarget)
>+    : MouseRelatedEvent(eventType, canBubble, cancelable, MonotonicTime::now(), WTFMove(view), detail, screenLocation, { }, { }, modifiers, IsSimulated::No)
>     , m_button(button == (unsigned short)-1 ? 0 : button)
>     , m_buttons(buttons)
>     , m_syntheticClickType(button == (unsigned short)-1 ? 0 : syntheticClickType)
>@@ -127,7 +115,8 @@ MouseEvent::MouseEvent(const AtomicString& eventType, const MouseEventInit& init
> 
> MouseEvent::~MouseEvent() = default;
> 
>-void MouseEvent::initMouseEvent(const AtomicString& type, bool canBubble, bool cancelable, RefPtr<WindowProxy>&& view, int detail, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, EventTarget* relatedTarget)
>+void MouseEvent::initMouseEvent(const AtomicString& type, bool canBubble, bool cancelable, RefPtr<WindowProxy>&& view, int detail,
>+    int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, EventTarget* relatedTarget)
> {
>     if (isBeingDispatched())
>         return;
>@@ -135,10 +124,7 @@ void MouseEvent::initMouseEvent(const AtomicString& type, bool canBubble, bool c
>     initUIEvent(type, canBubble, cancelable, WTFMove(view), detail);
> 
>     m_screenLocation = IntPoint(screenX, screenY);
>-    m_ctrlKey = ctrlKey;
>-    m_altKey = altKey;
>-    m_shiftKey = shiftKey;
>-    m_metaKey = metaKey;
>+    setModifierKeys(ctrlKey, altKey, shiftKey, metaKey);
>     m_button = button == (unsigned short)-1 ? 0 : button;
>     m_syntheticClickType = 0;
>     m_buttonDown = button != (unsigned short)-1;
>diff --git a/Source/WebCore/dom/MouseEvent.h b/Source/WebCore/dom/MouseEvent.h
>index b03aabbbe6f55f0db33773b4afe5c7e95c78d92d..02d35c67319f42185a9b7b7bd7742b6096e67fc5 100644
>--- a/Source/WebCore/dom/MouseEvent.h
>+++ b/Source/WebCore/dom/MouseEvent.h
>@@ -34,18 +34,14 @@ class PlatformMouseEvent;
> 
> class MouseEvent : public MouseRelatedEvent {
> public:
>-    WEBCORE_EXPORT static Ref<MouseEvent> create(const AtomicString& type, CanBubble, IsCancelable, MonotonicTime timestamp,
>-        RefPtr<WindowProxy>&&, int detail, int screenX, int screenY, int pageX, int pageY,
>-#if ENABLE(POINTER_LOCK)
>-        int movementX, int movementY,
>-#endif
>-        bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, unsigned short buttons,
>-        EventTarget* relatedTarget, double force, unsigned short syntheticClickType, DataTransfer* = nullptr, bool isSimulated = false);
>+    WEBCORE_EXPORT static Ref<MouseEvent> create(const AtomicString& type, CanBubble, IsCancelable, MonotonicTime timestamp, RefPtr<WindowProxy>&&, int detail,
>+        const IntPoint& screenLocation, const IntPoint& windowLocation, const IntPoint& movementDelta, OptionSet<Modifier>, unsigned short button, unsigned short buttons,
>+        EventTarget* relatedTarget, double force, unsigned short syntheticClickType, DataTransfer* = nullptr, IsSimulated = IsSimulated::No);
> 
>     WEBCORE_EXPORT static Ref<MouseEvent> create(const AtomicString& eventType, RefPtr<WindowProxy>&&, const PlatformMouseEvent&, int detail, Node* relatedTarget);
> 
>     static Ref<MouseEvent> create(const AtomicString& eventType, CanBubble, IsCancelable, RefPtr<WindowProxy>&&,
>-        int detail, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey,
>+        int detail, int screenX, int screenY, int clientX, int clientY, OptionSet<Modifier>,
>         unsigned short button, unsigned short buttons, unsigned short syntheticClickType, EventTarget* relatedTarget);
> 
>     static Ref<MouseEvent> createForBindings() { return adoptRef(*new MouseEvent); }
>@@ -80,18 +76,13 @@ public:
>     int which() const final;
> 
> protected:
>-    MouseEvent(const AtomicString& type, CanBubble, IsCancelable, MonotonicTime timestamp, RefPtr<WindowProxy>&&,
>-        int detail, const IntPoint& screenLocation, const IntPoint& windowLocation,
>-#if ENABLE(POINTER_LOCK)
>-        const IntPoint& movementDelta,
>-#endif
>-        bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button, unsigned short buttons,
>-        EventTarget* relatedTarget, double force, unsigned short syntheticClickType, DataTransfer*, bool isSimulated);
>+    MouseEvent(const AtomicString& type, CanBubble, IsCancelable, MonotonicTime timestamp, RefPtr<WindowProxy>&&, int detail,
>+        const IntPoint& screenLocation, const IntPoint& windowLocation, const IntPoint& movementDelta, OptionSet<Modifier>, unsigned short button, unsigned short buttons,
>+        EventTarget* relatedTarget, double force, unsigned short syntheticClickType, DataTransfer*, IsSimulated);
> 
>     MouseEvent(const AtomicString& type, CanBubble, IsCancelable, RefPtr<WindowProxy>&&,
>         int detail, const IntPoint& screenLocation, const IntPoint& clientLocation,
>-        bool ctrlKey, bool altKey, bool shiftKey, bool metaKey,
>-        unsigned short button, unsigned short buttons, unsigned short syntheticClickType, EventTarget* relatedTarget);
>+        OptionSet<Modifier>, unsigned short button, unsigned short buttons, unsigned short syntheticClickType, EventTarget* relatedTarget);
> 
>     MouseEvent(const AtomicString& type, const MouseEventInit&, IsTrusted);
> 
>diff --git a/Source/WebCore/dom/MouseRelatedEvent.cpp b/Source/WebCore/dom/MouseRelatedEvent.cpp
>index a3227a54bb452e8c59b94f69e62662a7fe6d722a..17519d0cb1952a3f9e7fcf1a0eefb529c3b49992 100644
>--- a/Source/WebCore/dom/MouseRelatedEvent.cpp
>+++ b/Source/WebCore/dom/MouseRelatedEvent.cpp
>@@ -33,20 +33,24 @@
> 
> namespace WebCore {
> 
>-MouseRelatedEvent::MouseRelatedEvent(const AtomicString& eventType, CanBubble canBubble, IsCancelable cancelable, MonotonicTime timestamp, RefPtr<WindowProxy>&& view,
>-                                     int detail, const IntPoint& screenLocation, const IntPoint& windowLocation,
>-#if ENABLE(POINTER_LOCK)
>-                                     const IntPoint& movementDelta,
>-#endif
>-                                     bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool isSimulated)
>-    : UIEventWithKeyState(eventType, canBubble, cancelable, timestamp, WTFMove(view), detail, ctrlKey, altKey, shiftKey, metaKey, false, false)
>+MouseRelatedEvent::MouseRelatedEvent(const AtomicString& eventType, CanBubble canBubble, IsCancelable isCancelable, MonotonicTime timestamp, RefPtr<WindowProxy>&& view, int detail,
>+    const IntPoint& screenLocation, const IntPoint& windowLocation, const IntPoint& movementDelta, OptionSet<Modifier> modifiers, IsSimulated isSimulated)
>+    : UIEventWithKeyState(eventType, canBubble, isCancelable, timestamp, WTFMove(view), detail, modifiers)
>     , m_screenLocation(screenLocation)
> #if ENABLE(POINTER_LOCK)
>     , m_movementDelta(movementDelta)
> #endif
>-    , m_isSimulated(isSimulated)
>+    , m_isSimulated(isSimulated == IsSimulated::Yes)
>+{
>+#if !ENABLE(POINTER_LOCK)
>+    UNUSED_PARAM(movementDelta);
>+#endif
>+    init(m_isSimulated, windowLocation);
>+}
>+
>+MouseRelatedEvent::MouseRelatedEvent(const AtomicString& type, IsCancelable isCancelable, MonotonicTime timestamp, Ref<WindowProxy>&& view, const IntPoint& globalLocation, OptionSet<Modifier> modifiers)
>+    : MouseRelatedEvent(type, CanBubble::Yes, isCancelable, timestamp, WTFMove(view), 0, globalLocation, globalLocation /* Converted in init */, { }, modifiers, IsSimulated::No)
> {
>-    init(isSimulated, windowLocation);
> }
> 
> MouseRelatedEvent::MouseRelatedEvent(const AtomicString& eventType, const MouseRelatedEventInit& initializer, IsTrusted isTrusted)
>diff --git a/Source/WebCore/dom/MouseRelatedEvent.h b/Source/WebCore/dom/MouseRelatedEvent.h
>index d8f1fcdf3e11b1e38eebeae7c60f4f85e88a4966..0ab21425b7a62a4690951131a91bc1c2cfa28952 100644
>--- a/Source/WebCore/dom/MouseRelatedEvent.h
>+++ b/Source/WebCore/dom/MouseRelatedEvent.h
>@@ -38,6 +38,8 @@ struct MouseRelatedEventInit : public EventModifierInit {
> // Internal only: Helper class for what's common between mouse and wheel events.
> class MouseRelatedEvent : public UIEventWithKeyState {
> public:
>+    enum class IsSimulated : uint8_t { Yes, No };
>+
>     // Note that these values are adjusted to counter the effects of zoom, so that values
>     // exposed via DOM APIs are invariant under zooming.
>     int screenX() const { return m_screenLocation.x(); }
>@@ -74,12 +76,9 @@ public:
> 
> protected:
>     MouseRelatedEvent() = default;
>-    MouseRelatedEvent(const AtomicString& type, CanBubble, IsCancelable, MonotonicTime timestamp, RefPtr<WindowProxy>&&,
>-        int detail, const IntPoint& screenLocation, const IntPoint& windowLocation,
>-#if ENABLE(POINTER_LOCK)
>-        const IntPoint& movementDelta,
>-#endif
>-        bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool isSimulated = false);
>+    MouseRelatedEvent(const AtomicString& type, CanBubble, IsCancelable, MonotonicTime, RefPtr<WindowProxy>&&, int detail,
>+        const IntPoint& screenLocation, const IntPoint& windowLocation, const IntPoint& movementDelta, OptionSet<Modifier> modifiers, IsSimulated = IsSimulated::No);
>+    MouseRelatedEvent(const AtomicString& type, IsCancelable, MonotonicTime, Ref<WindowProxy>&&, const IntPoint& globalLocation, OptionSet<Modifier>);
>     MouseRelatedEvent(const AtomicString& type, const MouseRelatedEventInit&, IsTrusted = IsTrusted::No);
> 
>     void initCoordinates();
>diff --git a/Source/WebCore/dom/SimulatedClick.cpp b/Source/WebCore/dom/SimulatedClick.cpp
>index a52c1a78386c2df257dacf259a36edadf6bcd791..f506faf8d16bc7440ea740d5df8755187bb24d67 100644
>--- a/Source/WebCore/dom/SimulatedClick.cpp
>+++ b/Source/WebCore/dom/SimulatedClick.cpp
>@@ -44,21 +44,12 @@ public:
> 
> private:
>     SimulatedMouseEvent(const AtomicString& eventType, RefPtr<WindowProxy>&& view, RefPtr<Event>&& underlyingEvent, Element& target, SimulatedClickSource source)
>-        : MouseEvent(eventType, CanBubble::Yes, IsCancelable::Yes, underlyingEvent ? underlyingEvent->timeStamp() : MonotonicTime::now(), WTFMove(view), 0, { }, { },
>-#if ENABLE(POINTER_LOCK)
>-            { },
>-#endif
>-            false, false, false, false, 0, 0, nullptr, 0, 0, nullptr, true)
>+        : MouseEvent(eventType, CanBubble::Yes, IsCancelable::Yes, underlyingEvent ? underlyingEvent->timeStamp() : MonotonicTime::now(), WTFMove(view), /* detail */ 0,
>+            { }, { }, { }, modifiersFromUnderlyingEvent(underlyingEvent), 0, 0, nullptr, 0, 0, nullptr, IsSimulated::Yes)
>     {
>         if (source == SimulatedClickSource::Bindings)
>             setUntrusted();
> 
>-        if (UIEventWithKeyState* keyStateEvent = findEventWithKeyState(underlyingEvent.get())) {
>-            m_ctrlKey = keyStateEvent->ctrlKey();
>-            m_altKey = keyStateEvent->altKey();
>-            m_shiftKey = keyStateEvent->shiftKey();
>-            m_metaKey = keyStateEvent->metaKey();
>-        }
>         setUnderlyingEvent(underlyingEvent.get());
> 
>         if (is<MouseEvent>(this->underlyingEvent())) {
>@@ -75,6 +66,13 @@ private:
>         }
>     }
> 
>+    static OptionSet<Modifier> modifiersFromUnderlyingEvent(const RefPtr<Event>& underlyingEvent)
>+    {
>+        UIEventWithKeyState* keyStateEvent = findEventWithKeyState(underlyingEvent.get());
>+        if (!keyStateEvent)
>+            return { };
>+        return keyStateEvent->modifierKeys();
>+    }
> };
> 
> static void simulateMouseEvent(const AtomicString& eventType, Element& element, Event* underlyingEvent, SimulatedClickSource source)
>diff --git a/Source/WebCore/dom/TouchEvent.cpp b/Source/WebCore/dom/TouchEvent.cpp
>index 292c84668f6a3cda8c43ca55918323bc9890c915..53267e4421aa316f27c2e31a55b4e3920c8eff88 100644
>--- a/Source/WebCore/dom/TouchEvent.cpp
>+++ b/Source/WebCore/dom/TouchEvent.cpp
>@@ -37,13 +37,8 @@ namespace WebCore {
> TouchEvent::TouchEvent() = default;
> 
> TouchEvent::TouchEvent(TouchList* touches, TouchList* targetTouches, TouchList* changedTouches, const AtomicString& type,
>-    RefPtr<WindowProxy>&& view, int screenX, int screenY, int pageX, int pageY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey)
>-    : MouseRelatedEvent(type, CanBubble::Yes, IsCancelable::Yes, MonotonicTime::now(), WTFMove(view), 0, IntPoint(screenX, screenY),
>-        IntPoint(pageX, pageY),
>-#if ENABLE(POINTER_LOCK)
>-        IntPoint(0, 0),
>-#endif
>-        ctrlKey, altKey, shiftKey, metaKey)
>+    RefPtr<WindowProxy>&& view, const IntPoint& globalLocation, OptionSet<Modifier> modifiers)
>+    : MouseRelatedEvent(type, IsCancelable::Yes, MonotonicTime::now(), WTFMove(view), globalLocation, modifiers)
>     , m_touches(touches)
>     , m_targetTouches(targetTouches)
>     , m_changedTouches(changedTouches)
>@@ -74,10 +69,7 @@ void TouchEvent::initTouchEvent(TouchList* touches, TouchList* targetTouches,
>     m_targetTouches = targetTouches;
>     m_changedTouches = changedTouches;
>     m_screenLocation = IntPoint(screenX, screenY);
>-    m_ctrlKey = ctrlKey;
>-    m_altKey = altKey;
>-    m_shiftKey = shiftKey;
>-    m_metaKey = metaKey;
>+    setModifierKeys(ctrlKey, altKey, shiftKey, metaKey);
>     initCoordinates(IntPoint(clientX, clientY));
> }
> 
>diff --git a/Source/WebCore/dom/TouchEvent.h b/Source/WebCore/dom/TouchEvent.h
>index 85fa161f2196d3f2a05d9a31a117b0a1af866f99..13de0c298651ce4110e46a775cd31cac33b84eb5 100644
>--- a/Source/WebCore/dom/TouchEvent.h
>+++ b/Source/WebCore/dom/TouchEvent.h
>@@ -39,15 +39,10 @@ class TouchEvent final : public MouseRelatedEvent {
> public:
>     virtual ~TouchEvent();
> 
>-    static Ref<TouchEvent> create(TouchList* touches, 
>-            TouchList* targetTouches, TouchList* changedTouches, 
>-            const AtomicString& type, RefPtr<WindowProxy>&& view,
>-            int screenX, int screenY, int pageX, int pageY,
>-            bool ctrlKey, bool altKey, bool shiftKey, bool metaKey)
>+    static Ref<TouchEvent> create(TouchList* touches, TouchList* targetTouches, TouchList* changedTouches,
>+        const AtomicString& type, RefPtr<WindowProxy>&& view, const IntPoint& globalLocation, OptionSet<Modifier> modifiers)
>     {
>-        return adoptRef(*new TouchEvent(touches, targetTouches, changedTouches,
>-                type, WTFMove(view), screenX, screenY, pageX, pageY,
>-                ctrlKey, altKey, shiftKey, metaKey));
>+        return adoptRef(*new TouchEvent(touches, targetTouches, changedTouches, type, WTFMove(view), globalLocation, modifiers));
>     }
>     static Ref<TouchEvent> createForBindings()
>     {
>@@ -65,11 +60,8 @@ public:
>         return adoptRef(*new TouchEvent(type, initializer, isTrusted));
>     }
> 
>-    void initTouchEvent(TouchList* touches, TouchList* targetTouches,
>-            TouchList* changedTouches, const AtomicString& type, 
>-            RefPtr<WindowProxy>&&, int screenX, int screenY,
>-            int clientX, int clientY,
>-            bool ctrlKey, bool altKey, bool shiftKey, bool metaKey);
>+    void initTouchEvent(TouchList* touches, TouchList* targetTouches, TouchList* changedTouches, const AtomicString& type,
>+        RefPtr<WindowProxy>&&, int screenX, int screenY, int clientX, int clientY, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey);
> 
>     TouchList* touches() const { return m_touches.get(); }
>     TouchList* targetTouches() const { return m_targetTouches.get(); }
>@@ -85,11 +77,8 @@ public:
> 
> private:
>     TouchEvent();
>-    TouchEvent(TouchList* touches, TouchList* targetTouches,
>-            TouchList* changedTouches, const AtomicString& type,
>-            RefPtr<WindowProxy>&&, int screenX, int screenY, int pageX,
>-            int pageY,
>-            bool ctrlKey, bool altKey, bool shiftKey, bool metaKey);
>+    TouchEvent(TouchList* touches, TouchList* targetTouches, TouchList* changedTouches, const AtomicString& type,
>+        RefPtr<WindowProxy>&&, const IntPoint& globalLocation, OptionSet<Modifier>);
>     TouchEvent(const AtomicString&, const Init&, IsTrusted);
> 
>     RefPtr<TouchList> m_touches;
>diff --git a/Source/WebCore/dom/UIEventWithKeyState.h b/Source/WebCore/dom/UIEventWithKeyState.h
>index 3668364699b93a51c8a9b8ea9615214d79387a27..d9ca758fd987bd57a8784493bd989faed064efa2 100644
>--- a/Source/WebCore/dom/UIEventWithKeyState.h
>+++ b/Source/WebCore/dom/UIEventWithKeyState.h
>@@ -24,61 +24,104 @@
> #pragma once
> 
> #include "EventModifierInit.h"
>+#include "PlatformEvent.h"
> #include "UIEvent.h"
> 
> namespace WebCore {
> 
> class UIEventWithKeyState : public UIEvent {
> public:
>-    bool ctrlKey() const { return m_ctrlKey; }
>-    bool shiftKey() const { return m_shiftKey; }
>-    bool altKey() const { return m_altKey; }
>-    bool metaKey() const { return m_metaKey; }
>-    bool altGraphKey() const { return m_altGraphKey; }
>-    bool capsLockKey() const { return m_capsLockKey; }
>+    using Modifier = PlatformEvent::Modifier;
>+
>+    bool ctrlKey() const { return m_modifiers.contains(Modifier::CtrlKey); }
>+    bool shiftKey() const { return m_modifiers.contains(Modifier::ShiftKey); }
>+    bool altKey() const { return m_modifiers.contains(Modifier::AltKey); }
>+    bool metaKey() const { return m_modifiers.contains(Modifier::MetaKey); }
>+    bool altGraphKey() const { return m_modifiers.contains(Modifier::AltGraphKey); }
>+    bool capsLockKey() const { return m_modifiers.contains(Modifier::CapsLockKey); }
>+
>+    OptionSet<Modifier> modifierKeys() { return m_modifiers; }
> 
> protected:
>     UIEventWithKeyState() = default;
> 
>-    UIEventWithKeyState(const AtomicString& type, CanBubble canBubble, IsCancelable cancelable, RefPtr<WindowProxy>&& view, int detail, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey)
>+    UIEventWithKeyState(const AtomicString& type, CanBubble canBubble, IsCancelable cancelable, RefPtr<WindowProxy>&& view, int detail, OptionSet<Modifier> modifiers)
>         : UIEvent(type, canBubble, cancelable, WTFMove(view), detail)
>-        , m_ctrlKey(ctrlKey)
>-        , m_altKey(altKey)
>-        , m_shiftKey(shiftKey)
>-        , m_metaKey(metaKey)
>+        , m_modifiers(modifiers)
>     {
>     }
> 
>-    UIEventWithKeyState(const AtomicString& type, CanBubble canBubble, IsCancelable cancelable, MonotonicTime timestamp, RefPtr<WindowProxy>&& view,
>-        int detail, bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool altGraphKey, bool capsLockKey)
>-            : UIEvent(type, canBubble, cancelable, timestamp, WTFMove(view), detail)
>-            , m_ctrlKey(ctrlKey)
>-            , m_altKey(altKey)
>-            , m_shiftKey(shiftKey)
>-            , m_metaKey(metaKey)
>-            , m_altGraphKey(altGraphKey)
>-            , m_capsLockKey(capsLockKey)
>+    UIEventWithKeyState(const AtomicString& type, CanBubble canBubble, IsCancelable cancelable, MonotonicTime timestamp, RefPtr<WindowProxy>&& view, int detail, OptionSet<Modifier> modifiers)
>+        : UIEvent(type, canBubble, cancelable, timestamp, WTFMove(view), detail)
>+        , m_modifiers(modifiers)
>     {
>     }
> 
>     UIEventWithKeyState(const AtomicString& type, const EventModifierInit& initializer, IsTrusted isTrusted)
>         : UIEvent(type, initializer, isTrusted)
>-        , m_ctrlKey(initializer.ctrlKey)
>-        , m_altKey(initializer.altKey)
>-        , m_shiftKey(initializer.shiftKey)
>-        , m_metaKey(initializer.metaKey)
>-        , m_altGraphKey(initializer.modifierAltGraph)
>-        , m_capsLockKey(initializer.modifierCapsLock)
>+        , m_modifiers(modifiersFromInitializer(initializer))
>+    {
>+    }
>+
>+    void setModifierKeys(bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, bool altGraphKey)
>     {
>+        OptionSet<Modifier> result;
>+        if (ctrlKey)
>+            result |= Modifier::CtrlKey;
>+        if (altKey)
>+            result |= Modifier::AltKey;
>+        if (shiftKey)
>+            result |= Modifier::ShiftKey;
>+        if (metaKey)
>+            result |= Modifier::MetaKey;
>+        if (altGraphKey)
>+            result |= Modifier::AltGraphKey;
>+        //  FIXME: Chrome or Firefox don't preserve this state.
>+        if (m_modifiers & Modifier::CapsLockKey)
>+            result |= Modifier::CapsLockKey;
>+        m_modifiers = result;
>     }
> 
>-    // Expose these so init functions can set them.
>-    bool m_ctrlKey { false };
>-    bool m_altKey { false };
>-    bool m_shiftKey { false };
>-    bool m_metaKey { false };
>-    bool m_altGraphKey { false };
>-    bool m_capsLockKey { false };
>+    void setModifierKeys(bool ctrlKey, bool altKey, bool shiftKey, bool metaKey)
>+    {
>+        OptionSet<Modifier> result;
>+        if (ctrlKey)
>+            result |= Modifier::CtrlKey;
>+        if (altKey)
>+            result |= Modifier::AltKey;
>+        if (shiftKey)
>+            result |= Modifier::ShiftKey;
>+        if (metaKey)
>+            result |= Modifier::MetaKey;
>+        //  FIXME: Chrome or Firefox don't preserve these states.
>+        if (m_modifiers & Modifier::AltGraphKey)
>+            result |= Modifier::AltGraphKey;
>+        if (m_modifiers & Modifier::CapsLockKey)
>+            result |= Modifier::CapsLockKey;
>+        m_modifiers = result;
>+    }
>+
>+private:
>+    OptionSet<Modifier> m_modifiers;
>+
>+    OptionSet<Modifier> modifiersFromInitializer(const EventModifierInit& initializer)
>+    {
>+        OptionSet<Modifier> result;
>+        if (initializer.ctrlKey)
>+            result |= Modifier::CtrlKey;
>+        if (initializer.altKey)
>+            result |= Modifier::AltKey;
>+        if (initializer.shiftKey)
>+            result |= Modifier::ShiftKey;
>+        if (initializer.metaKey)
>+            result |= Modifier::MetaKey;
>+        if (initializer.modifierAltGraph)
>+            result |= Modifier::AltGraphKey;
>+        if (initializer.modifierCapsLock)
>+            result |= Modifier::CapsLockKey;
>+        return result;
>+    }
>+    
> };
> 
> UIEventWithKeyState* findEventWithKeyState(Event*);
>diff --git a/Source/WebCore/dom/WheelEvent.cpp b/Source/WebCore/dom/WheelEvent.cpp
>index 27677a87a5efbae633ff101f12cdbcd50b940668..07223b95495f3c94cd7049dd46fba78cce1b7443 100644
>--- a/Source/WebCore/dom/WheelEvent.cpp
>+++ b/Source/WebCore/dom/WheelEvent.cpp
>@@ -48,11 +48,8 @@ inline WheelEvent::WheelEvent(const AtomicString& type, const Init& initializer,
> }
> 
> inline WheelEvent::WheelEvent(const PlatformWheelEvent& event, RefPtr<WindowProxy>&& view)
>-    : MouseEvent(eventNames().wheelEvent, CanBubble::Yes, IsCancelable::Yes, event.timestamp().approximateMonotonicTime(), WTFMove(view), 0, event.globalPosition(), event.position()
>-#if ENABLE(POINTER_LOCK)
>-        , { }
>-#endif
>-        , event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(), 0, 0, nullptr, 0, 0, nullptr, false)
>+    : MouseEvent(eventNames().wheelEvent, CanBubble::Yes, IsCancelable::Yes, event.timestamp().approximateMonotonicTime(), WTFMove(view), 0, event.globalPosition(), event.position() , { }
>+        , event.modifiers(), 0, 0, nullptr, 0, 0, nullptr, IsSimulated::No)
>     , m_wheelDelta(event.wheelTicksX() * TickMultiplier, event.wheelTicksY() * TickMultiplier)
>     , m_deltaX(-event.deltaX())
>     , m_deltaY(-event.deltaY())
>diff --git a/Source/WebCore/page/EventHandler.cpp b/Source/WebCore/page/EventHandler.cpp
>index 0631a11a65127a7067fca9aa4ec22c048589e555..fe66ecb777722138989e323b77164287124f1d34 100644
>--- a/Source/WebCore/page/EventHandler.cpp
>+++ b/Source/WebCore/page/EventHandler.cpp
>@@ -2213,14 +2213,15 @@ bool EventHandler::dispatchDragEvent(const AtomicString& eventType, Element& dra
>         return false;
> 
>     view->disableLayerFlushThrottlingTemporarilyForInteraction();
>-    Ref<MouseEvent> me = MouseEvent::create(eventType,
>-        Event::CanBubble::Yes, Event::IsCancelable::Yes, event.timestamp().approximateMonotonicTime(), &m_frame.windowProxy(),
>-        0, event.globalPosition().x(), event.globalPosition().y(), event.position().x(), event.position().y(),
>+    // FIXME: Use MouseEvent::create which takes PlatformMouseEvent.
>+    Ref<MouseEvent> me = MouseEvent::create(eventType, Event::CanBubble::Yes, Event::IsCancelable::Yes, event.timestamp().approximateMonotonicTime(), &m_frame.windowProxy(), 0,
>+        event.globalPosition(), event.position(),
> #if ENABLE(POINTER_LOCK)
>-        event.movementDelta().x(), event.movementDelta().y(),
>+        event.movementDelta(),
>+#else
>+        { },
> #endif
>-        event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey(),
>-        0, 0, nullptr, event.force(), NoTap, &dataTransfer);
>+        event.modifiers(), 0, 0, nullptr, event.force(), NoTap, &dataTransfer);
> 
>     dragTarget.dispatchEvent(me);
>     return me->defaultPrevented();
>@@ -4222,10 +4223,8 @@ bool EventHandler::handleTouchEvent(const PlatformTouchEvent& event)
>             RefPtr<TouchList> targetTouches(isTouchCancelEvent ? emptyList : touchesByTarget.get(target.get()));
>             ASSERT(targetTouches);
> 
>-            Ref<TouchEvent> touchEvent =
>-                TouchEvent::create(effectiveTouches.get(), targetTouches.get(), changedTouches[state].m_touches.get(),
>-                    stateName, downcast<Node>(*target).document().windowProxy(),
>-                    0, 0, 0, 0, event.ctrlKey(), event.altKey(), event.shiftKey(), event.metaKey());
>+            Ref<TouchEvent> touchEvent = TouchEvent::create(effectiveTouches.get(), targetTouches.get(), changedTouches[state].m_touches.get(),
>+                stateName, downcast<Node>(*target).document().windowProxy(), { }, event.modifiers());
>             target->dispatchEvent(touchEvent);
>             swallowedEvent = swallowedEvent || touchEvent->defaultPrevented() || touchEvent->defaultHandled();
>         }
>diff --git a/Source/WebCore/platform/PlatformEvent.h b/Source/WebCore/platform/PlatformEvent.h
>index 635392520dbc14db114467b4c50d18c61a762b98..815a3c93bad0f3a1c6eef1d3549d5cb123b87c94 100644
>--- a/Source/WebCore/platform/PlatformEvent.h
>+++ b/Source/WebCore/platform/PlatformEvent.h
>@@ -70,12 +70,15 @@ public:
> #endif
>     };
> 
>-    enum class Modifier {
>+    enum class Modifier : uint8_t {
>         AltKey      = 1 << 0,
>         CtrlKey     = 1 << 1,
>         MetaKey     = 1 << 2,
>         ShiftKey    = 1 << 3,
>         CapsLockKey = 1 << 4,
>+
>+        // Never used in native platforms but added for initEvent
>+        AltGraphKey = 1 << 5,
>     };
> 
>     Type type() const { return static_cast<Type>(m_type); }
>diff --git a/Source/WebCore/platform/mac/PlatformEventFactoryMac.h b/Source/WebCore/platform/mac/PlatformEventFactoryMac.h
>index e2ab405f40c165600aa0535002e2764a2529409a..2f18f9593928fe93fe0735c245ca67ed68859981 100644
>--- a/Source/WebCore/platform/mac/PlatformEventFactoryMac.h
>+++ b/Source/WebCore/platform/mac/PlatformEventFactoryMac.h
>@@ -51,7 +51,8 @@ WEBCORE_EXPORT String keyIdentifierForKeyEvent(NSEvent *);
> WEBCORE_EXPORT String keyForKeyEvent(NSEvent *);
> WEBCORE_EXPORT String codeForKeyEvent(NSEvent *);
> WEBCORE_EXPORT WallTime eventTimeStampSince1970(NSEvent *);
>-    
>+
>+WEBCORE_EXPORT OptionSet<PlatformEvent::Modifier> modifiersForEvent(NSEvent *);
> WEBCORE_EXPORT void getWheelEventDeltas(NSEvent *, float& deltaX, float& deltaY, BOOL& continuous);
> WEBCORE_EXPORT UInt8 keyCharForEvent(NSEvent *);
> 
>diff --git a/Source/WebCore/platform/mac/PlatformEventFactoryMac.mm b/Source/WebCore/platform/mac/PlatformEventFactoryMac.mm
>index 7081e124427ee3d6de491907366087389f994838..5985477d9e05488a29040e0c243594a94997b970 100644
>--- a/Source/WebCore/platform/mac/PlatformEventFactoryMac.mm
>+++ b/Source/WebCore/platform/mac/PlatformEventFactoryMac.mm
>@@ -661,7 +661,7 @@ static inline bool isKeyUpEvent(NSEvent *event)
>     return false;
> }
> 
>-static inline OptionSet<PlatformEvent::Modifier> modifiersForEvent(NSEvent *event)
>+OptionSet<PlatformEvent::Modifier> modifiersForEvent(NSEvent *event)
> {
>     OptionSet<PlatformEvent::Modifier> modifiers;
> 
>diff --git a/Source/WebCore/testing/Internals.cpp b/Source/WebCore/testing/Internals.cpp
>index 0f379618f1fc94bf385cf3fd84d5a9bd60aa286c..efa6aa75e6431b228bb5d7c7457893ea6e56ef6f 100644
>--- a/Source/WebCore/testing/Internals.cpp
>+++ b/Source/WebCore/testing/Internals.cpp
>@@ -4295,6 +4295,9 @@ Vector<String> Internals::accessKeyModifiers() const
>         case PlatformEvent::Modifier::CapsLockKey:
>             accessKeyModifierStrings.append("capsLockKey"_s);
>             break;
>+        case PlatformEvent::Modifier::AltGraphKey:
>+            ASSERT_NOT_REACHED(); // AltGraph is only for DOM API.
>+            break;
>         }
>     }
> 
>diff --git a/Source/WebKit/WebProcess/WebPage/WebPage.cpp b/Source/WebKit/WebProcess/WebPage/WebPage.cpp
>index 17a00649717b105ed1544bb7fa4346319972fa57..c8dc47605e32bb4b5ddf49c57558eb6524578d80 100644
>--- a/Source/WebKit/WebProcess/WebPage/WebPage.cpp
>+++ b/Source/WebKit/WebProcess/WebPage/WebPage.cpp
>@@ -1336,12 +1336,10 @@ void WebPage::navigateToPDFLinkWithSimulatedClick(const String& url, IntPoint do
>         return;
> 
>     const int singleClick = 1;
>+    // FIXME: Set modifier keys.
>+    // FIXME: This should probably set IsSimulated::Yes.
>     RefPtr<MouseEvent> mouseEvent = MouseEvent::create(eventNames().clickEvent, Event::CanBubble::Yes, Event::IsCancelable::Yes,
>-        MonotonicTime::now(), nullptr, singleClick, screenPoint.x(), screenPoint.y(), documentPoint.x(), documentPoint.y(),
>-#if ENABLE(POINTER_LOCK)
>-        0, 0,
>-#endif
>-        false, false, false, false, 0, 0, nullptr, 0, WebCore::NoTap, nullptr);
>+        MonotonicTime::now(), nullptr, singleClick, screenPoint, documentPoint, { }, { }, 0, 0, nullptr, 0, WebCore::NoTap, nullptr);
> 
>     mainFrame->loader().urlSelected(mainFrameDocument->completeURL(url), emptyString(), mouseEvent.get(), LockHistory::No, LockBackForwardList::No, ShouldSendReferrer::MaybeSendReferrer, ShouldOpenExternalURLsPolicy::ShouldNotAllow);
> }
>diff --git a/Source/WebKitLegacy/ios/WebView/WebPDFViewPlaceholder.mm b/Source/WebKitLegacy/ios/WebView/WebPDFViewPlaceholder.mm
>index 6332a807e48fe49f1b8a91957b6d42bafb1a874b..4adf2f728a5d82ffcbef60112a9015717867f7ac 100644
>--- a/Source/WebKitLegacy/ios/WebView/WebPDFViewPlaceholder.mm
>+++ b/Source/WebKitLegacy/ios/WebView/WebPDFViewPlaceholder.mm
>@@ -479,11 +479,8 @@ static const float PAGE_HEIGHT_INSET = 4.0f * 2.0f;
>         return;
> 
>     // Construct an event to simulate a click.
>-    RefPtr<Event> event = MouseEvent::create(eventNames().clickEvent, Event::CanBubble::Yes, Event::IsCancelable::Yes, MonotonicTime::now(), 0, 1, 0, 0, 0, 0,
>-#if ENABLE(POINTER_LOCK)
>-        0, 0,
>-#endif
>-        false, false, false, false, 0, 0, nullptr, 0, 0, nullptr, true);
>+    RefPtr<Event> event = MouseEvent::create(eventNames().clickEvent, Event::CanBubble::Yes, Event::IsCancelable::Yes, MonotonicTime::now(), nullptr, 1,
>+        { }, { }, { }, { }, 0, 0, nullptr, 0, 0, nullptr, MouseEvent::IsSimulated::Yes);
> 
>     // Call to the frame loader because this is where our security checks are made.
>     Frame* frame = core([_dataSource webFrame]);
>diff --git a/Source/WebKitLegacy/mac/WebView/WebPDFView.mm b/Source/WebKitLegacy/mac/WebView/WebPDFView.mm
>index ceb9390c6af00fd8c8c63cb54cc8808b138d4a0d..3e12dfba7da741ae3a837d4f02a30a4aba719da4 100644
>--- a/Source/WebKitLegacy/mac/WebView/WebPDFView.mm
>+++ b/Source/WebKitLegacy/mac/WebView/WebPDFView.mm
>@@ -1030,15 +1030,9 @@ static BOOL isFrameInRange(WebFrame *frame, DOMRange *range)
>         break;
>     }
>     if (button != noButton) {
>-        event = MouseEvent::create(eventNames().clickEvent, Event::CanBubble::Yes, Event::IsCancelable::Yes, MonotonicTime::now(), 0, [nsEvent clickCount], 0, 0, 0, 0,
>-#if ENABLE(POINTER_LOCK)
>-            0, 0,
>-#endif
>-            [nsEvent modifierFlags] & NSEventModifierFlagControl,
>-            [nsEvent modifierFlags] & NSEventModifierFlagOption,
>-            [nsEvent modifierFlags] & NSEventModifierFlagShift,
>-            [nsEvent modifierFlags] & NSEventModifierFlagCommand,
>-            button, [NSEvent pressedMouseButtons], nullptr, WebCore::ForceAtClick, 0, nullptr, true);
>+        // FIXME: Use createPlatformMouseEvent instead.
>+        event = MouseEvent::create(eventNames().clickEvent, Event::CanBubble::Yes, Event::IsCancelable::Yes, MonotonicTime::now(), nullptr, [nsEvent clickCount], { }, { }, { },
>+            modifiersForEvent(nsEvent), button, [NSEvent pressedMouseButtons], nullptr, WebCore::ForceAtClick, 0, nullptr, MouseEvent::IsSimulated::Yes);
>     }
> 
>     // Call to the frame loader because this is where our security checks are made.

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Attachments on bug 188777: 347610 | 347694 | 347711 | 347751