We're about to need per-handler state related to neither pointer nor
key input. This change merges the pointer and key handler state into one
state struct, tracked in the Router.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
This change defers event routing from the time the event is queued until
the time Events is called. This allows a future change to execute
commands immediately and to react to event order changes during a frame.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Replace the per-event event queues with a single queue of events, each
marked with the target tag. This change is a prerequisite for lazy event
delivery.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
We're about the refactor this quite subtle code, and the optimization
doesn't seem to carry its weight in complexity.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Refactor delivery of reset events to be resolved and delivered as part of
Source.Events. This is a preparation for changing event handling to be
lazy.
Reset events are delivered to event handlers that are either new or
haven't been active in the previous frame for a particular event type
(pointer or key events), to ensure the handler state is reset.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
We're about to replace key.InputOp with a filter; this change separates
the input hint into its own operation.
Signed-off-by: Elias Naur <mail@eliasnaur.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>
Modeling focus change as an operation is awkward, because focus changes
logically happen during event processing, not layout. In particular, you
want to apply focus changes even if a widget is subsequently never laid
out.
Now that input.Source is concrete, it's much more straightforward to
offer focus changes as a command which can be queued through the
Source. A future change may similarly offer a command for directional
focus changes.
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>
We're about to replace the interface Queue with a concrete input.Source.
This change renames the field accordingly.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
We're about to make Context.Queue a concrete type, and this change
replaces code that relies on Queue being an interface.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
We're about to make the Queue field of FrameEvent (and layout.Context)
a concrete type. Remove the interface assumption from app.Window.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
In the early days of Gio, FrameEvent was part of package app. It was
moved to package system to enable layout.NewContext be a convenient
short-hand for constructing a layout.
However, it seems the better design to leave FrameEvent (and Insets) in
package app, and move layout.NewContext there as well. More importantly,
the move allows us to replace the event.Queue interface with a concrete
type.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
It was a design mistake to make profiling data available to programs.
Rather, profiling should either be a user-configurable debug overlay,
reported through runtime/trace, or both.
This change drops the io/profile package because we're about to overhaul
event routing.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit adapts the use of the automatic window decorations to the
event processing changes introduced in v0.4.0. You must update widget
state before laying it out, not after. Doing so after (as this code used
to do) results in discarding updates.
Fixes: https://todo.sr.ht/~eliasnaur/gio/542
Signed-off-by: Chris Waldon <christopher.waldon.dev@gmail.com>
The only remaining use of the cache is mapping handles to textures.
Using a concrete type for the key avoids the allocation caused by convT.
If we need more caches again in the future we can copy the type, or make
it generic.
Instead of updating the benchmark, we removed it outright. It suffered
from several flaws:
- The amount of work for each iteration of b.N wasn't constant, because
the same cache was reused, growing ever larger in size.
- It only tested the cost of insertions. The comment "half are the same
and half updated" wasn't true, as calling 'put' with the same key twice
would've resulted in a panic.
- It didn't simulate any particular workload or cache size, making the
benchmark useless for comparing different cache implementations. The
cost of insertions isn't particularly interesting.
Signed-off-by: Dominik Honnef <dominik@honnef.co>
This commit fixes a visual misalignment in scrollbars resulting from subtle differences
in the semantics of layout.Stack and layout.Background. layout.Stack will position expanded
children according to their minimum constraint regardless of their returned size, whereas
layout.Background uses their returned size. This means that layout.Expanded widgets returning
zero dimensions are positioned correctly, but they break when converted to use layout.Background.
This commit fixes the problem by returning correct dimensions from the scrollbar track.
Signed-off-by: Chris Waldon <christopher.waldon.dev@gmail.com>
This matches the convention of other state update methods. While here, remove useless
dimensions return. The update doesn't draw anything, so there are no dimensions involved.
Signed-off-by: Chris Waldon <christopher.waldon.dev@gmail.com>
Elias Naur