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8242577: Cell selection fails on iOS most of the times #181

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@jperedadnr jperedadnr commented Apr 14, 2020

There are cases when iOS sends one or more NSTouchPhaseMoved for a given touch event, in between NSTouchPhaseBegan and NSTouchPhaseEnded , even if the initial event location didn't change.

By default, all these events are emulated as mouse enter/down, drag and up/exit events.

However, when the user taps quickly or even holds steady on a cell, if these touch moved events are generated and sent as mouse drag events, the cell selection fails, as the flag latePress used in CellBehaviorBase is set to false, preventing the cell selection that should happen upon touch release event.

This PR prevents emulating mouse drag events when the touch event doesn't change its location.


  • Change must not contain extraneous whitespace
  • Commit message must refer to an issue
  • Change must be properly reviewed


  • JDK-8242577: Cell selection fails on iOS most of the times


  • Johan Vos (jvos - Reviewer)


$ git fetch pull/181/head:pull/181
$ git checkout pull/181

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@bridgekeeper bridgekeeper bot commented Apr 14, 2020

👋 Welcome back jpereda! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request.

@openjdk openjdk bot added the rfr label Apr 14, 2020
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@mlbridge mlbridge bot commented Apr 14, 2020


@kevinrushforth kevinrushforth requested a review from johanvos Apr 15, 2020
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@johanvos johanvos left a comment

looks good.

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@openjdk openjdk bot commented Apr 16, 2020

@jperedadnr This change now passes all automated pre-integration checks. When the change also fulfills all project specific requirements, type /integrate in a new comment to proceed. After integration, the commit message will be:

8242577: Cell selection fails on iOS most of the times

Reviewed-by: jvos
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Since the source branch of this PR was last updated there have been 19 commits pushed to the master branch. As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid automatic rebasing, please merge master into your branch, and then specify the current head hash when integrating, like this: /integrate 5e9fb8294770f40b9ee1e6e703e07c9d50310694.

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@jperedadnr jperedadnr commented Apr 17, 2020


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@openjdk openjdk bot commented Apr 17, 2020

Your change (at version e385b39) is now ready to be sponsored by a Committer.

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@johanvos johanvos commented Apr 20, 2020


@openjdk openjdk bot closed this Apr 20, 2020
@openjdk openjdk bot added integrated and removed sponsor ready labels Apr 20, 2020
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@openjdk openjdk bot commented Apr 20, 2020

@johanvos @jperedadnr The following commits have been pushed to master since your change was applied:

Your commit was automatically rebased without conflicts.

Pushed as commit 5e9fb82.

@openjdk openjdk bot removed the rfr label Apr 20, 2020
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