Click and Hover both stored the first PointerID they observed in
their internal pid field and only updated it when not currently
hovered/entered. Once the gesture became hovered, any later event
under a different PointerID was effectively ignored: Click.Press
fell through 'c.pid != e.PointerID' and was silently dropped, and
Hover could never reset entered when the matching Leave arrived
under a new ID.
The Windows backend enables EnableMouseInPointer
(app/os_windows.go), under which Windows reassigns the same
physical mouse's PointerID across focus changes, window
leave/re-enter, and similar events. Once a widget had been hovered,
every subsequent press on it failed to register, including
widget.Editor's internal clicker that positions the caret on press.
Multi-line editors silently refused to move the caret on click
after the window had received any focus event.
Always take the latest PointerID on Hover.Enter and Click.Press.
The Press/Release handshake still works because Press now records
the press's own PointerID and Release continues to gate on
'c.pid != e.PointerID' so an unrelated pointer's release can't end
the press tracking.
Signed-off-by: Eugene <eugenebosyakov@gmail.com>
Instead of having to supply the predicates for event filtering at the
time of layout, the new Filter type allows widgets to filter at the time
of calling Source.Events. There is then only the need for a single input
op type, in package event.
Filters most importantly allow the use of one tag for several event types,
and we can define that a widget w has &w as its primary tag, by convention.
This allows the replacement of per-widget Focus methods with direct uses
of FocusCmd{&w}, and the later addition of Source.Focused(&w) queries.
Note that the TestCursor test needed restructuring to avoid its use of
InputOps.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
This change gets rid of the event.Queue interface by replacing it with
input.Source values. Source provides the interface to Router necessary
to implement interface widgets.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
For example, ButtonLeft may be the right-most button for a left-handed user.
Rename the button names to match their intended use.
This is an API change. Use the following commands to update your
projects:
$ gofmt -r 'pointer.ButtonLeft -> pointer.ButtonPrimary' -w .
$ gofmt -r 'pointer.ButtonRight -> pointer.ButtonSecondary' -w .
$ gofmt -r 'pointer.ButtonMiddle -> pointer.ButtonTertiary' -w .
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Double click or tap actions are common in user interfaces and this
commit adds support for it in the gesture package.
ClickEvent has now a new field NumClicks that contains the number of
successive clicks that occurred within 200ms.
Fixes gio#101
Signed-off-by: Pierre.Curto <pierre.curto@gmail.com>
Eugene