* Add `RequestedSize` and `RequestedPosition` enum to enable asking for
logical or physical size/position.
* Rename `Window::size()` to `Window::physical_size()`
* Make `Window::set_size(...)` take an `Into<RequestedSize>`
* Rename `Window::position()` to `Window::physical_position()`
* Make `Window::set_position(...)` take an `Into<RequestedPosition>`
* Change `WindowAdapter` and related classes to be able to handle
requests being made in the either physical or logical units.
Implement this for C++, Rust and node.
One key difference to the Rust way is what `slint::Window` means. In
Rust that holds the `WindowInner` and `slint::Window` is only exposed as
`&slint::Window`. This is possible because the component owns the
`Rc<dyn PlatformWindow>`, which has a function to return the
`&slint::Window`.
In C++ `slint::Window` is also exposed as `slint::Window&` in the
`window()` getter, but there's no way to get a reference to a C++
wrapper for the Rust `&slint::Window` that the `PlatformWindow` trait
returns. Therefore in C++ `slint::Window` wraps `Rc<dyn
PlatformWindow>`.
Previously: Window is an Rc<WindowInner>, which has an Rc<dyn
PLatformWindow> - and weak references the other way around.
Now: Rc<dyn PlatformWindow> is the root of window ownership. The impl
PlatformWindow has a slint::api::Window, which just holds a WindowInner.
This change is incomplete on a few levels, mainly that neither of the
code generators nor the interpreter is ported.
This includes the cache of decoded images, the HTMLImage element support
and the SVG rendering adapter.
The objective is that Image holds an ImageInner, which is not a path
anymore that the backend has to process, but instead always either
decoded image data, a pointer to a static texture or an SVG tree that
can be rendered to the desired size.
I want to track component structure changes in the window without
generating more code. So use a more generic name for the init_*_items
functions, so that I can add the functionality I need in there.
Also add a register_component to PlatformWindow and call that.
I want a more generic name as I want to do to track component structure
changes in addition to resource freeing and I do not want to add another
call into the generated code.
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
... even if the old value holds the same value as the new value
This fixes test_cpp_bindings_two_way_priority_default
Also add a C++ unit test that tests the Property type specificaly
Remove the `parent_item` function. After the recent changes that did not
return an item anymore and since the item tree is exposed, this function
was only used to find the repeater a component was created by.
So replace the old function with a new one that only returns the parent
node in the parent component.
This saves a few lines of generated code that is not used anymore.
Co-authored-by: Simon Hausmann <hausmann@gmail.com>
This avoid repeating the enums both in the compiler and in
the runtime library, and register them in a bunch of other places.
So it should be easier to add enums and enum values
Since cbindgen doesn't see through the macro, generate the enum
manually
Add accessors to the information necessary to stitch together the
Component-wide ItemTrees (which include DynamicNodes) into one logical
tree of Items.
With ImageInner::StaticTextures (the variant) and StaticTextures (the
struct), we need to disambiguate for the generated enum contructor
functions. This is done by prefixing the enum variant with their name.
With the help of dark-light crate this is now exposed as dark-style
boolean property in NativeStyleMetrics.
Co-authored-by: Olivier Goffart <olivier@slint-ui.com>
Co-authored-by: Simon Hausmann <simon.hausmann@slint-ui.com>
- We need to make sure that the initialization of global is in the right order.
- In C++ and rust, we need to add accessor to the global component
- There can be `PropertyReference::Global` in binding of globals
- The interpreter globals need to hold references to the global they may depend on
Fixes#175
Fixes#909
Since we declare the struct in C++, we don't need to declare it in
rust for cbindgen anymore, as long as we expose the Size2D type from
euclid to the cbindgen_private namespace
