windows-reactor 0.100.0

use super::*;
use windows_core::*;

implement_decl! {
    impl ReactorApplicationOverrides as pub ReactorApplicationOverrides_Impl:
        [IApplicationOverrides, IXamlMetadataProvider]
}

pub struct ReactorApplicationOverrides {
    controls_provider: RefCell<Option<XamlControlsXamlMetaDataProvider>>,
    on_launched: RefCell<Option<Box<dyn FnOnce() -> Result<()>>>>,
}

impl ReactorApplicationOverrides {
    fn new(on_launched: Box<dyn FnOnce() -> Result<()>>) -> Self {
        Self {
            controls_provider: RefCell::new(None),
            on_launched: RefCell::new(Some(on_launched)),
        }
    }

    fn provider(&self) -> Result<XamlControlsXamlMetaDataProvider> {
        if let Some(provider) = self.controls_provider.borrow().as_ref() {
            return Ok(provider.clone());
        }
        let provider = XamlControlsXamlMetaDataProvider::new()?;
        *self.controls_provider.borrow_mut() = Some(provider.clone());
        Ok(provider)
    }
}

impl IApplicationOverrides_Impl for ReactorApplicationOverrides_Impl {
    fn OnLaunched(&self, _args: Ref<LaunchActivatedEventArgs>) -> Result<()> {
        if let Some(on_launched) = self.on_launched.borrow_mut().take() {
            on_launched()?;
        }
        Ok(())
    }
}

impl IXamlMetadataProvider_Impl for ReactorApplicationOverrides_Impl {
    fn GetXamlType(&self, r#type: &TypeName) -> Result<IXamlType> {
        self.provider()?.GetXamlType(r#type)
    }

    fn GetXamlTypeByFullName(&self, full_name: &HSTRING) -> Result<IXamlType> {
        self.provider()?
            .GetXamlTypeByFullName(&full_name.to_string_lossy())
    }

    fn GetXmlnsDefinitions(&self) -> Result<Array<XmlnsDefinition>> {
        self.provider()?.GetXmlnsDefinitions()
    }
}

pub fn create_application(on_launched: Box<dyn FnOnce() -> Result<()>>) -> Result<Application> {
    Application::compose(ReactorApplicationOverrides::new(on_launched))
}

pub fn install_xaml_controls_resources(application: &Application) -> Result<()> {
    let controls = XamlControlsResources::new()?;
    let resources: ResourceDictionary = controls.cast()?;
    application
        .Resources()?
        .MergedDictionaries()?
        .Append(&resources)
}