Bug 213060 – [WebDriver] Support input cancel list

• Status: NEW
• Component: WebDriver

[Lauro Moura]

Currently, WebAutomationSession/SimulatedInputDispacher generates a set of default reset states for each input source when canceling an interaction sequence. (WebAutomationSession::cancelInteractionSequence).

This is causing the mouseup reset event to be emitted with (0,0) position instead of the position of the last mouse press/move. This is making imported/w3c/webdriver/tests/perform_actions/pointer_contextmenu.py::test_release_control_click (and probably others to fail).

A tentative fix for this, preserving the pointer coordinate, also showed that the order of the actions is not preserved (Cancel actions are traversed in a different order than expected).

In the current WebDriver spec, these are the actions that add actions to the inputCancelList:

* KeyDown -> Adds the same state with KeyUp
* PointerDown -> Adds the same state with PointerUp

[Sam Sneddon [:gsnedders]]

See https://wpt.fyi/results/webdriver/tests/classic/perform_actions/pointer_contextmenu.py?label=master&label=experimental&product=chrome&product=edge&product=firefox&product=safari&product=webkitgtk&product=wpewebkit&q=subtest%3Atest_release_control_click for current results.

[Radar WebKit Bug Importer]

<rdar://problem/163300143>