The situation differs depending if the widget show the virtual keyboard or not:
For widget that don't show the virtual keyboard, we rely on the winit events,
but for some reason we don't recieve WindowEvent::ModifiersChanged events with
wasm. Since the event handling in winit is about to be rewriten, I did not
bother reporting the bug upstream, but just work around by using the deprecated
API. So that way shift + tab will no longer be understood as just tab.
For widget using the virtual keyboard, then the event handling is in
wasm_input_helper.rs. There is a couple of issues:
- We must map shift+tab to backtab.
- We need to prevent the default events to trigger, so that tab and other
shortcuts don't take effect on the browser. Winit already inhibit these
events so we must do the same otherwise tab and shift+tab would change the
html focus.
- By luck, tab used to give the focus back to the canvas before (see previous
point) and that's why it worked. But now that we don't do that anymore,
hiding the virtual keyboard should actually re-focus the canvas
- That will cause the focus event to be intercepted by winit, and will cause
recursions and borrow error, so we make sure that we do not recurse when
getting the focus event
cbindgen 0.21 was released which contains https://github.com/eqrion/cbindgen/pull/724
which allow to use raw identifier in enums shared with C++.
So now we can have `MouseCursor.move` in slint despite it being a rust keyword
Note that the strum macro also have trouble with the raw identifier, so we
take that in account in the conversion functions in the interpreter
cc #215
Handle Input event from the input directly instead of going through winit
for the TextInput.
Note that this doesn't handle the composition event well, so the text is
only considered written when it is accepted
Delegate the decision how to implement the Clip element entirely into the backend,
where the GL backend can now explicitly render
children into a layer, instead of the hack with a layer in the renderer's
state and the extra save/restore pair.
The README.md contains the warning that used to be in lib.rs.
Add README.md files to all internal crates
... pointing to the official public crate to use instead.
Rename internal crates
fixup: README files
fixup rename
This API allows specifying a callback that will be invoked when setting
up graphics (great for compiling shaders), before rendering a frame (but
after the clearning of the surface background), after rendering a frame
(before swapbuffers) and when releasing graphics resources.
