tree 42307577d366f5d8a524d62c256e8d9e2807ff1a
parent 9d3c78ad300fec723fbbe3aeb92c78616dde75ab
author burg@cs.washington.edu <burg@cs.washington.edu@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1396653255 +0000
committer burg@cs.washington.edu <burg@cs.washington.edu@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1396653255 +0000

Web Replay: capture and replay wheel events and scroll commands
https://bugs.webkit.org/show_bug.cgi?id=129402

.:

Reviewed by Timothy Hatcher.

* ManualTests/inspector/replay-wheel-events.html: Added.

Source/WebCore:

Reviewed by Timothy Hatcher and Simon Fraser.

To capture and replay scrolling, the scrolling coordinator will force synchronous
scrolling during capture and replay. If the page is capturing or replaying,
ForceOnMainThread will be added to the coordinator's SynchronousScrollingReasons.

A callback was added to signal that replay session state have changed,
and thus the synchronous scrolling reasons should be recomputed.

Automated replay reftests for scrolling are not included, because they will be
too flaky until more nondeterminism is handled. Specifically, resource loading,
initial focus/active state, and parsing are known blocking issues.

Test: ManualTests/inspector/replay-wheel-events.html

* page/scrolling/ScrollingCoordinator.cpp: Add a new callback for replay state
session changes. Add ForceOnMainThread if the page's active input cursor is
capturing or replaying.

(WebCore::ScrollingCoordinator::synchronousScrollingReasons):
(WebCore::ScrollingCoordinator::replaySessionStateDidChange): Added.
* page/scrolling/ScrollingCoordinator.h:

* platform/PlatformWheelEvent.h:
* platform/ScrollTypes.h: Add explicit enum storage types so these enums can
be forward-declared. This is necessary to generate enum encode/decode implementations.

* replay/ReplayController.cpp:
(WebCore::ReplayController::setForceDeterministicSettings): If async scrolling
support is available, tell the scrolling tree to behave deterministically.

* replay/ReplayInputDispatchMethods.cpp:
(WebCore::HandleWheelEvent::dispatch): Added.
(WebCore::LogicalScrollPage::dispatch): Added.
(WebCore::ScrollPage::dispatch): Added.
* replay/SerializationMethods.cpp: Introduce more specific macros for values
deserialized to arbitraray lvalues, scalars, RefPtr, and unique_ptr. Fix existing
uses of decode macros.

(JSC::EncodingTraits<NondeterministicInputBase>::encodeValue): Fix macro name.
(JSC::EncodingTraits<KeypressCommand>::encodeValue): Fix macro name.
(JSC::EncodingTraits<PlatformKeyboardEvent>::encodeValue): Fix macro name.
(JSC::EncodingTraits<PlatformMouseEvent>::encodeValue): Fix macro name.
(JSC::PlatformWheelEventCocoa::PlatformWheelEventCocoa): Added. Encapsulate
and initialize data members specific to PLATFORM(COCOA).

(JSC::EncodingTraits<PlatformWheelEvent>::encodeValue): Added.
(JSC::EncodingTraits<PlatformWheelEvent>::decodeValue): Added.
* replay/SerializationMethods.h:
* replay/UserInputBridge.cpp: Fill in bridge methods to capture inputs.
(WebCore::UserInputBridge::handleWheelEvent):
(WebCore::UserInputBridge::scrollRecursively):
(WebCore::UserInputBridge::logicalScrollRecursively):
* replay/WebInputs.json: Add inputs and new enum types.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@166811 268f45cc-cd09-0410-ab3c-d52691b4dbfc