More Semantics properties

[ndonkoHenri]

Closes #1498

• eventData in triggerControlEvent defaults to ""
• Expose more Semantics properties
• SemanticsService

Test code for SemanticsService:

import flet as ft


def main(page):
    page.window_always_on_top = True
    page.theme_mode = ft.ThemeMode.LIGHT
    page.horizontal_alignment = ft.CrossAxisAlignment.CENTER

    s = ft.SemanticsService()
    page.overlay.append(s)
    page.update()

    page.add(
        ft.OutlinedButton(
            text="Announce Tooltip",
            on_click=lambda e: s.announce_tooltip("This is a tooltip announcement"),
        ),
        ft.OutlinedButton(
            text="Announce Message",
            on_click=lambda e: s.announce_tooltip("This is a message announcement"),
        ),
    )


ft.app(target=main)

[FeodorFitsner]

What about SemanticsService as a 3rd-option in your list?

[FeodorFitsner]

Great PR! Accessibility is a must for a good UI framework!

[ndonkoHenri]

What about SemanticsService as a 3rd-option in your list?

Will be adding it soon...