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[Bug 20240] New: Pointer Event and Click

From: <bugzilla@jessica.w3.org>
Date: Tue, 04 Dec 2012 19:00:57 +0000
To: public-pointer-events@w3.org
Message-ID: <bug-20240-5978@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=20240

            Bug ID: 20240
           Summary: Pointer Event and Click
    Classification: Unclassified
           Product: PointerEventsWG
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Pointer Events specification
          Assignee: jrossi@microsoft.com
          Reporter: jrossi@microsoft.com
        QA Contact: public-pointer-events-bugzilla@w3.org
                CC: public-pointer-events@w3.org

From: Daniel Freedman <dfreedm@google.com> 
Date: Thu, 29 Nov 2012 16:21:49 -0800
Message-ID:
<CAAUAVAhuTu+eeOoah1hM7k334xwo3mPcVEavx4eubsSJipb_eA@mail.gmail.com> 
To: public-pointer-events@w3.org 

Hi, I'm working on a PointerEvents polyfill and I've run into an odd note
in the spec.
In section 7, click is explicitly excluded from the compatibility mouse
events, leaving no good way to control the generation of click events.

This brings to mind a few issues:

1. If a developer uses pointerdown.preventDefault, they could receive click
events without a mousedown/mouseup. This seems very strange.

2. There are cases in which a developer would want to conditionally react
to a click based on pointer movement. If the click event cannot be
prevented by pointermove, the only option is to try and prevent the next
click, which has potential for buggy interaction.

3. If click events are not provided by the browser, developers will try to
make their own with pointerdown/up pairs, which is wasted effort.

4. Touch Events provide the ability to control click event generation, and
developers familiar with that system will understand how it behaves.

With these points in mind, would it be possible to add the control of click
events to Pointer Events?

Thanks

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Received on Tuesday, 4 December 2012 19:01:02 UTC

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