[Webkit-unassigned] [Bug 35691] [Chromium] Adding new platform types for touch events and touch points.
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Wed Mar 3 13:58:32 PST 2010
https://bugs.webkit.org/show_bug.cgi?id=35691
--- Comment #4 from Garret Kelly (Google) <gdk at chromium.org> 2010-03-03 13:58:32 PST ---
(In reply to comment #3)
> (From update of attachment 49923 [details])
> > +++ b/WebKit/chromium/public/WebInputEvent.h
> >
> > +// WebTouchEvent --------------------------------------------------------------
> > +
> > +class WebTouchEvent : public WebInputEvent {
> > +public:
> > + static const int touchPointCountCap = 4;
>
> nit: CountCap -> LengthCap for consistency with WebKeyboardEvent
Done.
>
> > +
> > + int modifiers;
> > + int touchPointCount;
> > + WebTouchPoint touchPoints[touchPointCountCap];
>
> Is touchPointCount necessary? Perhaps you could use
> touchPoints[i].state == WebTouchPoint::Undefined as
> an array terminator instead?
That'd require using up a WebTouchPoint entry in the array just to indicate the
total length. For the sake of space it seems better to stick with the
touchPointCount.
> WebInputEvent already defines a modifiers member var,
> so I'm surprised to see it repeated here.
Removed.
>
> > +++ b/WebKit/chromium/public/WebTouchPoint.h
> ...
> > +#include <string.h>
>
> ^^^ this include seems unnecessary
Entirely. I'm baffled as to why I put that there. Removed. :)
>
> > +namespace WebKit {
> > +
> > +class WebTouchPoint {
> > +public:
> > + WebTouchPoint()
> > + : id(0)
> > + , state(Undefined)
> > + , screenPosition(0, 0)
> > + , position(0, 0) { }
> > +
> > + enum State {
> > + Undefined,
> > + TouchReleased,
> > + TouchPressed,
> > + TouchMoved,
> > + TouchStationary,
> > + TouchCancelled,
>
> How about StateReleased, StatePressed, etc. to better
> match the name of the enum?
>
> Since these enum values will primarily be written w/
> the WebTouchPoint prefix, it seems unnecessary to have
> the word "Touch" in the names of the enum values.
Very sensible. Done. Also renamed Undefined -> StateUndefined.
Thank you very much for the comments. :)
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