Implement basic accessibility (a11y) support, using the Qt backend.
_This should get us started, but accessibility support is an additional way to interact with UIs that is very different from the "graphical way" most users will interact with the UI. No single PR will "make a toolkit accessibility", this needs to be an ongoing effort!_
Parts of this PR:
* Add functions to access a11y-related properties to Component
* Add helper functions to Item struct
* Handle accessible- properties in the compiler
* Add documentation, add description, enforce some basic rules
* Make the Text element accessible by default
* Don't optimize away accessibility property in the LLR
* Ensure that accessibility property are marked as used
* Add some accessibility properties to the native style widgets
* Support for bool and integer `accessible` properties
* Implement basic support for accessibility
* Make basic widgets accessible by default
* Make slider focus-able and interactable with keyboard
* Tell a11y layer about value changes
* Generate QAccessible constants using bindgen
* Don't expose the `accessible` properties when using the MCU backend: There is no backend to make use of them
* Handle focus change based on keyboard focus of the window
* Report accessible widgets at correct positions
* Allow for (virtual) focus delegation at the a11y level
* Calculate value step size dynamically
* Make sure to not send notifications to a11y backend about dead objects
We can't use file system call to load files with wasm, we need to go through the vscode API
Note that this is all async, so i had to prevent re-entry within the compiler using a rentry trick.
I removed the lifetime in the TypeLoader because I thought this was going to be necessary
to get 'static futures. But it turned out not to be necessary. Anyway, I kept it htis way because
it is actually nicer IMHO, even if the CompilationConfiguration is now copied
Continue to support specififying logical font sizes in the compile step
via SLINT_FONT_SIZES, but additionally look for Text/TextInput/Window elements
and extract any constant font sizes
found.
This makes it work out of the box with the printer demo.
* Make sure that the compiler don't panic if the parent of a PopupWindow
is optimized (by not optiizing such element)
* Ensure that we can call popup.show() from within a deeper repeater
* Ensure that the parent element of the popup is the right one in case of
repeater (and not the node in the parent component)
This partially revert ad5991f8fa and
6c7a7aed0e because we must do the lower_popup
adter the repeater pass, because otherwise the parent element of the
created component for the PopupWindow might be wrong and it is not easy to
adjust (we would have to make Component::parent_element a RefCell or duplicate
it again.
Fixes#1132
instead of panicking
We need to mve stuff in the parent element and that doesn't work if
it is a repeated element. Also there would not be ways to call show
on it anyway.
Fixes#1079
Enable with `SLINT_EMBED_GLYPHS=1` and select sizes like
`SLINT_FONT_SIZES=12,16`
This change just puts the data structures in place, rasterizes a fixed
subset, embeds that into the rust generated code and calls a backend
function for registering the font that is unimplemented.
Do the default_geometry pass before injecting elements:
The reason is that the defaut_geometry pass must know if an element is in
a layout and what kind of default geometry needs to be applied depending
on its actual structure, not whatever results after we injected elements
We were relying on the default_geometry pass to set the size of elements,
but that doesn't work for elements that are not covering 100% of their
parents by default. So to that manually instead.
Fixes#915
We need to simplify all the optimized items before the move_declaration pass
This include innter item of repeater that might be used by layouts
But that also means we can now uptimize children of layouts
Move "internal" crates into the `internal` directory. This first batch
includes most of sixtyfps_runtime but leaves the rendering backends
alone for now.
pre-commit applied some cleanups to the moved files:
- Consistent newline at end of file policy
- trimming trailing whitespace
- Formatting Cargo.toml files.
2022-01-31 16:00:50 +01:00
Renamed from sixtyfps_compiler/passes.rs (Browse further)
