Title: [255499] trunk/Source/WebCore
- Revision
- 255499
- Author
- [email protected]
- Date
- 2020-01-31 09:07:15 -0800 (Fri, 31 Jan 2020)
Log Message
REGRESSION (r240250): Pages using smoothscroll.js can't be scrolled with trackpad
https://bugs.webkit.org/show_bug.cgi?id=207040
<rdar://problem/52712513>
Reviewed by Simon Fraser.
Add a quirk that makes the wheel event listener used by smoothscroll.js passive so it can't prevent scrolling.
This uses the same logic as the Chromium intervention in
https://chromium.googlesource.com/chromium/src/+/b6b13c9cfe64d52a4168d9d8d1ad9bb8f0b46a2a%5E%21/
* bindings/js/JSEventListener.cpp:
(WebCore::JSEventListener::functionName const):
* bindings/js/JSEventListener.h:
* dom/EventTarget.cpp:
(WebCore::EventTarget::addEventListener):
* page/Quirks.cpp:
(WebCore::Quirks::shouldMakeEventListenerPassive const):
Also factor the existing code for making some touch event listeners passive here.
* page/Quirks.h:
Modified Paths
Diff
Modified: trunk/Source/WebCore/ChangeLog (255498 => 255499)
--- trunk/Source/WebCore/ChangeLog 2020-01-31 16:38:30 UTC (rev 255498)
+++ trunk/Source/WebCore/ChangeLog 2020-01-31 17:07:15 UTC (rev 255499)
@@ -1,3 +1,28 @@
+2020-01-31 Antti Koivisto <[email protected]>
+
+ REGRESSION (r240250): Pages using smoothscroll.js can't be scrolled with trackpad
+ https://bugs.webkit.org/show_bug.cgi?id=207040
+ <rdar://problem/52712513>
+
+ Reviewed by Simon Fraser.
+
+ Add a quirk that makes the wheel event listener used by smoothscroll.js passive so it can't prevent scrolling.
+
+ This uses the same logic as the Chromium intervention in
+ https://chromium.googlesource.com/chromium/src/+/b6b13c9cfe64d52a4168d9d8d1ad9bb8f0b46a2a%5E%21/
+
+ * bindings/js/JSEventListener.cpp:
+ (WebCore::JSEventListener::functionName const):
+ * bindings/js/JSEventListener.h:
+ * dom/EventTarget.cpp:
+ (WebCore::EventTarget::addEventListener):
+ * page/Quirks.cpp:
+ (WebCore::Quirks::shouldMakeEventListenerPassive const):
+
+ Also factor the existing code for making some touch event listeners passive here.
+
+ * page/Quirks.h:
+
2020-01-31 Peng Liu <[email protected]>
Media controls of the video player on nfl.com are not visible in fullscreen mode (iPad only)
Modified: trunk/Source/WebCore/bindings/js/JSEventListener.cpp (255498 => 255499)
--- trunk/Source/WebCore/bindings/js/JSEventListener.cpp 2020-01-31 16:38:30 UTC (rev 255498)
+++ trunk/Source/WebCore/bindings/js/JSEventListener.cpp 2020-01-31 17:07:15 UTC (rev 255499)
@@ -222,6 +222,21 @@
return m_jsFunction == other.m_jsFunction && m_isAttribute == other.m_isAttribute;
}
+String JSEventListener::functionName() const
+{
+ if (!m_wrapper || !m_jsFunction)
+ return { };
+
+ auto& vm = isolatedWorld().vm();
+ JSC::JSLockHolder lock(vm);
+
+ auto* handlerFunction = JSC::jsDynamicCast<JSC::JSFunction*>(vm, m_jsFunction.get());
+ if (!handlerFunction)
+ return { };
+
+ return handlerFunction->name(vm);
+}
+
static inline JSC::JSValue eventHandlerAttribute(EventListener* abstractListener, ScriptExecutionContext& context)
{
if (!is<JSEventListener>(abstractListener))
Modified: trunk/Source/WebCore/bindings/js/JSEventListener.h (255498 => 255499)
--- trunk/Source/WebCore/bindings/js/JSEventListener.h 2020-01-31 16:38:30 UTC (rev 255498)
+++ trunk/Source/WebCore/bindings/js/JSEventListener.h 2020-01-31 17:07:15 UTC (rev 255499)
@@ -57,6 +57,8 @@
virtual String sourceURL() const { return String(); }
virtual TextPosition sourcePosition() const { return TextPosition(); }
+ String functionName() const;
+
private:
virtual JSC::JSObject* initializeJSFunction(ScriptExecutionContext&) const;
void visitJSFunction(JSC::SlotVisitor&) final;
Modified: trunk/Source/WebCore/dom/EventTarget.cpp (255498 => 255499)
--- trunk/Source/WebCore/dom/EventTarget.cpp 2020-01-31 16:38:30 UTC (rev 255498)
+++ trunk/Source/WebCore/dom/EventTarget.cpp 2020-01-31 17:07:15 UTC (rev 255499)
@@ -39,6 +39,7 @@
#include "InspectorInstrumentation.h"
#include "JSEventListener.h"
#include "JSLazyEventListener.h"
+#include "Quirks.h"
#include "ScriptController.h"
#include "ScriptDisallowedScope.h"
#include "Settings.h"
@@ -75,17 +76,8 @@
auto passive = options.passive;
- if (!passive.hasValue() && eventNames().isTouchScrollBlockingEventType(eventType)) {
- if (is<DOMWindow>(*this)) {
- auto& window = downcast<DOMWindow>(*this);
- if (auto* document = window.document())
- passive = document->settings().passiveTouchListenersAsDefaultOnDocument();
- } else if (is<Node>(*this)) {
- auto& node = downcast<Node>(*this);
- if (is<Document>(node) || node.document().documentElement() == &node || node.document().body() == &node)
- passive = node.document().settings().passiveTouchListenersAsDefaultOnDocument();
- }
- }
+ if (!passive.hasValue() && Quirks::shouldMakeEventListenerPassive(*this, eventType, listener.get()))
+ passive = true;
bool listenerCreatedFromScript = listener->type() == EventListener::JSEventListenerType && !listener->wasCreatedFromMarkup();
auto listenerRef = listener.copyRef();
Modified: trunk/Source/WebCore/page/Quirks.cpp (255498 => 255499)
--- trunk/Source/WebCore/page/Quirks.cpp 2020-01-31 16:38:30 UTC (rev 255498)
+++ trunk/Source/WebCore/page/Quirks.cpp 2020-01-31 17:07:15 UTC (rev 255499)
@@ -28,11 +28,15 @@
#include "CustomHeaderFields.h"
#include "DOMTokenList.h"
+#include "DOMWindow.h"
#include "Document.h"
#include "DocumentLoader.h"
+#include "EventNames.h"
#include "FrameLoader.h"
+#include "HTMLBodyElement.h"
#include "HTMLMetaElement.h"
#include "HTMLObjectElement.h"
+#include "JSEventListener.h"
#include "LayoutUnit.h"
#include "RuntimeEnabledFeatures.h"
#include "Settings.h"
@@ -617,6 +621,43 @@
return false;
}
+bool Quirks::shouldMakeEventListenerPassive(const EventTarget& eventTarget, const AtomString& eventType, const EventListener& eventListener)
+{
+ if (eventNames().isTouchScrollBlockingEventType(eventType)) {
+ if (is<DOMWindow>(eventTarget)) {
+ auto& window = downcast<DOMWindow>(eventTarget);
+ if (auto* document = window.document())
+ return document->settings().passiveTouchListenersAsDefaultOnDocument();
+ } else if (is<Node>(eventTarget)) {
+ auto& node = downcast<Node>(eventTarget);
+ if (is<Document>(node) || node.document().documentElement() == &node || node.document().body() == &node)
+ return node.document().settings().passiveTouchListenersAsDefaultOnDocument();
+ }
+ return false;
+ }
+
+ if (eventType == eventNames().mousewheelEvent) {
+ if (!is<JSEventListener>(eventListener))
+ return false;
+
+ // For SmoothScroll.js
+ // Matches Blink intervention in https://chromium.googlesource.com/chromium/src/+/b6b13c9cfe64d52a4168d9d8d1ad9bb8f0b46a2a%5E%21/
+ if (is<DOMWindow>(eventTarget)) {
+ auto* document = downcast<DOMWindow>(eventTarget).document();
+ if (!document || !document->quirks().needsQuirks())
+ return false;
+
+ auto& jsEventListener = downcast<JSEventListener>(eventListener);
+ if (jsEventListener.functionName() == "ssc_wheel")
+ return true;
+ }
+
+ return false;
+ }
+
+ return false;
+}
+
#if ENABLE(MEDIA_STREAM)
bool Quirks::shouldEnableLegacyGetUserMedia() const
{
Modified: trunk/Source/WebCore/page/Quirks.h (255498 => 255499)
--- trunk/Source/WebCore/page/Quirks.h 2020-01-31 16:38:30 UTC (rev 255498)
+++ trunk/Source/WebCore/page/Quirks.h 2020-01-31 17:07:15 UTC (rev 255499)
@@ -32,6 +32,7 @@
class Document;
class Element;
+class EventListener;
class EventTarget;
class HTMLElement;
class LayoutUnit;
@@ -83,6 +84,8 @@
bool shouldBypassBackForwardCache() const;
+ static bool shouldMakeEventListenerPassive(const EventTarget&, const AtomString& eventType, const EventListener&);
+
#if ENABLE(MEDIA_STREAM)
bool shouldEnableLegacyGetUserMedia() const;
#endif
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