To avoid passing a queue type for each kind of input (pointer, key),
introduce package input for mapping a handler key to all input events.
Future input sources can be added without changes to programs, and
as an added bonus, event ordering is preserved across input sources.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Instead of allocating and constructing a clip path, store path data
directly in op lists. Use separate op lists for cached text layout
paths.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
To prepare support for cached OpBlock to refer to other Ops lists.
The exposure of OpsReader is alleviated by the removal of the Refs
and Data accessors for Ops.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
The frame callback for macOS comes in from a different thread than
the UI thread. Serialize event handling to maintain the invariant
that only one event is processed at a time.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
I found a convincing use case: stopping asynchronous activities
while paused. A follow up change will rename the stages and add
an example.
This reverts commit f9840b0963.
I'm not convinced the API is right. For exmaple, an event that
notifies a program when to save its state is both smaller and
might be sufficient.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Pros:
- Much less per-frame garbage
- Allow future preprocessing of ops while building it
- Much fewer interface calls and pointer chasing
- Allow future serialization of ops for remote rendering
Cons:
- Slightly clumsier API
Signed-off-by: Elias Naur <mail@eliasnaur.com>
It turns out we already support multiple windows on Android: when
the activity is recreated.
This reverts commit f21b5eb1df.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Replace it with a dummy event send on the synchronous event channel;
a bit of cleverness for a simpler API.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
We used to buffer input events to allow for batch processing
multiple events before redrawing. Now that redraws are scheduled to
run after the native event queue is empty, buffering is no longer
necessary.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
gioui.org/ui was renamed from gioui.org/ui/ui before the release,
but the import order wasn't changed accordingly.
Signed-off-by: Elias Naur <mail@eliasnaur.com>
Elias Naur