[webkit-dev] Force Click events

[Maciej Stachowiak]

Beth gave a bunch of details of the feature, but I would like to expand a bit on our standards plans, and cross-platform potential of this feature:

(1) We definitely plan to take this proposal to standards


> On May 8, 2015, at 3:25 AM, Jonathan Rimmer <jon.rimmer at gmail.com> wrote:
> 
> [I originally posted this to webkit-help, but Benjamin suggested suggested I post here instead]
> 
> Hi all,
> 
> On Twitter, I was bemoaning the lack of communication re. the recently added Force Click events to Benjamin Poulain, and he suggested, probably correctly, that I am out of the loop with respect to WebKit development. There had, he said, been dicussion of this feature on the mailing lists, bugzilla, and the recent contributors meeting.
> 
> This therefore, is my attempt to get in the loop on this issue. I was wondering if anyone could help me find the following:
> 
> Mailing list posts: I have tried searching with the Gmane archive, but have been unable to find any dicussions on this issue. It doesn't help that Gmane does not support phrasal searches, meaning I cannot easily search for "force click", "force touch", "pointer events", etc. Can anyone suggest what words I should search for, or direct me to the relevant threads?
> 
> Contributors meeting: There was apparently a 1 hour discussion at the contributor's meeting that lead to the agreement that the Force Click experiment should be upstreamed. Is there a video or sound recording of this dicussion available? Is there a set of minutes or other summary available? A blog post?
> 
> Documentation: Benjamin said the feature has been upstreamed to gather feedback. Can anyone point me to developer documentation that would assist in using/testing the feature? Or something like the Surfin' Safari blog posts that introduced the CSS gradient feature?[1]
> 
> I am also curious about the decision to develop a non-standard feature instead of implementing Pointer Events? The Point Events spec defines a "pressure" property on pointer events that seems analagous to the "force" property introduced by this feature. Why was a proprietary solution pursued instead of adopting the W3C standard? What does the Force Click events offer that Pointer Events do not?
> 
> Also, how does the development of this feature relate to the WebKit project's stated goal of standards compliance? [2]. Is there a plan to standardise this events with the W3C? Is it wise to name this feature after a marketing term used by a single contributor organisation? Is it intended that these features will be interopable with pressure-sensitive hardware other than Apple's Force Touch trackpad?
> 
> [1] https://www.webkit.org/blog/175/introducing-css-gradients/
> [2] https://www.webkit.org/projects/goals.html
> 
> Thanks,
> Jon
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