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    PlatformViewEventCallback

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    type PlatformViewEventCallback = (UInt64, String, 
    PlatformViewEvent    ) -> Unit

    Callback invoked by the native event dispatcher when a platform view fires an event. Parameters: (native window handle, platform-view id, event). The host converts the handle to a WindowId, then dispatches the event as @core.AppEvent::PlatformView(id, event).

    Event

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    Event::equal

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    fn Event::equal(Event, Event) -> Bool

    Event::not_equal

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    fn Event::not_equal(x : Event, y : Event) -> Bool

    Event::to_core

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    Event::to_json

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    fn Event::to_json(Event) -> Json

    Event::to_repr

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    EventResult

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    pub(all) struct EventResult {
      needs_rebuild : Bool
      needs_redraw : Bool
      redraw_requested : Bool
      close_requested : Bool
    } derive(Eq, ToJson, 
    Debug    )

    EventResult::equal

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    fn EventResult::equal(EventResult, EventResult) -> Bool

    EventResult::not_equal

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    fn EventResult::not_equal(x : EventResult, y : EventResult) -> Bool

    EventResult::to_json

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    fn EventResult::to_json(EventResult) -> Json

    EventResult::to_repr

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    HostAppInfo

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    pub(all) struct HostAppInfo {
      backend : HostBackendKind
      uses_shared_event_model : Bool
      uses_shared_surface_model : Bool
      uses_shared_input_model : Bool
      description : String
    } derive(Eq, ToJson, 
    Debug    )

    HostAppInfo::equal

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    fn HostAppInfo::equal(HostAppInfo, HostAppInfo) -> Bool

    HostAppInfo::new

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    fn HostAppInfo::new(backend~ : HostBackendKind, description? : String, uses_shared_event_model? : Bool, uses_shared_surface_model? : Bool, uses_shared_input_model? : Bool) -> HostAppInfo

    HostAppInfo::not_equal

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    fn HostAppInfo::not_equal(x : HostAppInfo, y : HostAppInfo) -> Bool

    HostAppInfo::to_json

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    fn HostAppInfo::to_json(HostAppInfo) -> Json

    HostAppInfo::to_repr

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    HostApplicationMenu

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    pub(all) struct HostApplicationMenu {
      title : String
      items : Array[HostApplicationMenuItem]
      placement : HostApplicationMenuPlacement
    } derive(Eq, ToJson, 
    Debug    )

    One application menu group. MenuBar creates a top-level menu; hosts with a standard application menu may place ApplicationMenu items there.

    HostApplicationMenu::equal

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    HostApplicationMenu::new

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    HostApplicationMenu::not_equal

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    HostApplicationMenu::to_json

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    HostApplicationMenu::to_repr

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    HostApplicationMenuItem

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    pub(all) struct HostApplicationMenuItem {
      title : String
      action_id : Int
      key_equivalent : String
      key_modifier_mask : Int
      separator : Bool
      enabled : Bool
    } derive(Eq, ToJson, 
    Debug    )

    One item in a host application menu bar.

    Use separator=true for dividers; other fields are ignored for separators. action_id is host-defined and is delivered to the platform action handler when the item is chosen. Keyboard accelerators use key_equivalent plus key_modifier_mask (platform bit masks; see platform notes).

    HostApplicationMenuItem::equal

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    HostApplicationMenuItem::new

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    fn HostApplicationMenuItem::new(title~ : String, action_id~ : Int, key_equivalent? : String, key_modifier_mask? : Int, separator? : Bool, enabled? : Bool) -> HostApplicationMenuItem

    HostApplicationMenuItem::not_equal

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    HostApplicationMenuItem::separator

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    HostApplicationMenuItem::to_json

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    HostApplicationMenuItem::to_repr

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    HostApplicationMenuPlacement

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    pub(all) enum HostApplicationMenuPlacement {
      MenuBar
      ApplicationMenu
    } derive(Eq, ToJson, 
    Debug    )

    HostApplicationMenuPlacement::equal

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    HostApplicationMenuPlacement::not_equal

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    HostApplicationMenuPlacement::to_json

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    HostApplicationMenuPlacement::to_repr

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    HostBackendKind

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    pub(all) enum HostBackendKind {
      Native
      Web
      Wechat
      Test
    } derive(Eq, ToJson, 
    Debug    )

    HostBackendKind::equal

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    HostBackendKind::label

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    fn HostBackendKind::label(self : HostBackendKind) -> String

    HostBackendKind::not_equal

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    fn HostBackendKind::not_equal(x : HostBackendKind, y : HostBackendKind) -> Bool

    HostBackendKind::to_json

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    HostBackendKind::to_repr

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    HostBinaryFileDiagnostic

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    pub struct HostBinaryFileDiagnostic {
      // private fields
    } derive(Eq, ToJson, 
    Debug    )

    HostBinaryFileDiagnostic::byte_length

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    fn HostBinaryFileDiagnostic::byte_length(self : HostBinaryFileDiagnostic) -> Int

    HostBinaryFileDiagnostic::equal

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    HostBinaryFileDiagnostic::not_equal

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    HostBinaryFileDiagnostic::operation

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    fn HostBinaryFileDiagnostic::operation(self : HostBinaryFileDiagnostic) -> String

    HostBinaryFileDiagnostic::path

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    HostBinaryFileDiagnostic::to_json

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    HostBinaryFileDiagnostic::to_repr

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    HostBinaryFileRequest

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    pub(all) enum HostBinaryFileRequest {
      ReadBytes(String)
      WriteBytes(String, Bytes)
    } derive(Eq, ToJson, 
    Debug    )

    HostBinaryFileRequest::diagnostic

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    HostBinaryFileRequest::equal

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    HostBinaryFileRequest::not_equal

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    HostBinaryFileRequest::to_json

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    HostBinaryFileRequest::to_repr

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    HostCapabilitySummary

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    pub(all) struct HostCapabilitySummary {
      backend : HostBackendKind
      label : String
      services : HostServiceCapabilities
      input : HostInputCapabilities
      window_lifecycle : Bool
      multi_window : Bool
      text_input_available : Bool
      ime_available : Bool
      drag_drop_available : Bool
      async_services : Bool
      native_accessibility_available : Bool
      web_view_available : Bool
      host_modal_available : Bool
      web_view_description : String
      description : String
    } derive(Eq, ToJson, 
    Debug    )

    HostCapabilitySummary::equal

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    HostCapabilitySummary::from_contracts

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    fn HostCapabilitySummary::from_contracts(info~ : HostAppInfo, services~ : HostServiceCapabilities, input~ : HostInputCapabilities, label? : String, window_lifecycle? : Bool, multi_window? : Bool, text_input_available? : Bool, ime_available? : Bool, drag_drop_available? : Bool, async_services? : Bool, native_accessibility_available? : Bool, web_view_available? : Bool, host_modal_available? : Bool, web_view_description? : String, description? : String) -> HostCapabilitySummary

    HostCapabilitySummary::has_required_app_basics

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    fn HostCapabilitySummary::has_required_app_basics(self : HostCapabilitySummary) -> Bool

    HostCapabilitySummary::input_count

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    fn HostCapabilitySummary::input_count(self : HostCapabilitySummary) -> Int

    HostCapabilitySummary::new

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    fn HostCapabilitySummary::new(backend~ : HostBackendKind, label? : String, services? : HostServiceCapabilities, input? : HostInputCapabilities, window_lifecycle? : Bool, multi_window? : Bool, text_input_available? : Bool, ime_available? : Bool, drag_drop_available? : Bool, async_services? : Bool, native_accessibility_available? : Bool, web_view_available? : Bool, host_modal_available? : Bool, web_view_description? : String, description? : String) -> HostCapabilitySummary

    HostCapabilitySummary::not_equal

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    HostCapabilitySummary::preflight_fields

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    fn HostCapabilitySummary::preflight_fields(self : HostCapabilitySummary) -> String

    HostCapabilitySummary::service_count

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    fn HostCapabilitySummary::service_count(self : HostCapabilitySummary) -> Int

    HostCapabilitySummary::test_host

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    fn HostCapabilitySummary::test_host(label? : String) -> HostCapabilitySummary

    HostCapabilitySummary::to_json

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    HostCapabilitySummary::to_repr

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    HostCapabilitySummary::unavailable

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    fn HostCapabilitySummary::unavailable(label? : String, description? : String) -> HostCapabilitySummary

    HostClipboardRequest

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    pub(all) enum HostClipboardRequest {
      ReadText
      WriteText(String)
      ReadImage
      WriteImage(String, Bytes)
    } derive(Eq, ToJson, 
    Debug    )

    HostClipboardRequest::equal

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    HostClipboardRequest::not_equal

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    HostClipboardRequest::to_json

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    HostClipboardRequest::to_repr

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    HostCompletedServiceResponse

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    pub(all) struct HostCompletedServiceResponse {
      id : HostServiceRequestId
      request : HostServiceRequest
      response : HostServiceResponse
    } derive(Eq, ToJson, 
    Debug    )

    HostCompletedServiceResponse::equal

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    HostCompletedServiceResponse::not_equal

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    HostCompletedServiceResponse::to_json

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    HostCompletedServiceResponse::to_repr

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    HostCoordinatePolicy

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    pub(all) struct HostCoordinatePolicy {
      input_space : HostCoordinateSpace
      surface_space : HostCoordinateSpace
      scale_factor_applied : Bool
      description : String
    } derive(Eq, ToJson, 
    Debug    )

    HostCoordinatePolicy::equal

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    HostCoordinatePolicy::logical

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    fn HostCoordinatePolicy::logical(description? : String) -> HostCoordinatePolicy

    HostCoordinatePolicy::not_equal

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    HostCoordinatePolicy::physical

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    fn HostCoordinatePolicy::physical(description? : String) -> HostCoordinatePolicy

    HostCoordinatePolicy::to_json

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    HostCoordinatePolicy::to_repr

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    HostCoordinateSpace

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    pub(all) enum HostCoordinateSpace {
      LogicalPixels
      PhysicalPixels
    } derive(Eq, ToJson, 
    Debug    )

    HostCoordinateSpace::equal

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    HostCoordinateSpace::not_equal

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    HostCoordinateSpace::to_json

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    HostCoordinateSpace::to_repr

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    HostDirectoryEntry

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    pub struct HostDirectoryEntry {
      // private fields
    } derive(Eq, ToJson, 
    Debug    )

    HostDirectoryEntry::equal

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    HostDirectoryEntry::is_directory

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    fn HostDirectoryEntry::is_directory(self : HostDirectoryEntry) -> Bool

    HostDirectoryEntry::name

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    fn HostDirectoryEntry::name(self : HostDirectoryEntry) -> String

    HostDirectoryEntry::new

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    fn HostDirectoryEntry::new(name~ : String, path~ : String, is_directory? : Bool) -> HostDirectoryEntry

    HostDirectoryEntry::not_equal

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    HostDirectoryEntry::path

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    fn HostDirectoryEntry::path(self : HostDirectoryEntry) -> String

    HostDirectoryEntry::to_json

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    HostDirectoryEntry::to_repr

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    HostFileDialogKind

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    pub(all) enum HostFileDialogKind {
      OpenFile
      SaveFile
      PickDirectory
    } derive(Eq, ToJson, 
    Debug    )

    HostFileDialogKind::equal

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    HostFileDialogKind::not_equal

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    HostFileDialogKind::to_json

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    HostFileDialogKind::to_repr

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    HostFileDialogOptions

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    pub(all) struct HostFileDialogOptions {
      kind : HostFileDialogKind
      title : String
      filters : Array[String]
      default_name : String?
    } derive(Eq, ToJson, 
    Debug    )

    HostFileDialogOptions::equal

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    HostFileDialogOptions::new

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    fn HostFileDialogOptions::new(kind~ : HostFileDialogKind, title? : String, filters? : Array[String], default_name? : String?) -> HostFileDialogOptions

    HostFileDialogOptions::not_equal

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    HostFileDialogOptions::to_json

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    HostFileDialogOptions::to_repr

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    HostFocusEvent

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    pub(all) struct HostFocusEvent {
      focused : Bool
      pointer_cancel_position : 
    Point    ?
    } derive(Eq, ToJson, 
    Debug    )

    HostFocusEvent::equal

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    HostFocusEvent::new

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    fn HostFocusEvent::new(focused~ : Bool, pointer_cancel_position? : 
    Point    ?) -> HostFocusEvent

    HostFocusEvent::not_equal

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    fn HostFocusEvent::not_equal(x : HostFocusEvent, y : HostFocusEvent) -> Bool

    HostFocusEvent::to_core

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    HostFocusEvent::to_json

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    HostFocusEvent::to_repr

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    HostInputCapabilities

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    pub(all) struct HostInputCapabilities {
      pointer : Bool
      scroll : Bool
      keyboard : Bool
      focus : Bool
      text_input : Bool
      ime : Bool
      clipboard : Bool
      drag_drop : Bool
    } derive(Eq, ToJson, 
    Debug    )

    HostInputCapabilities::enabled_labels

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    fn HostInputCapabilities::enabled_labels(self : HostInputCapabilities) -> Array[String]

    HostInputCapabilities::equal

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    HostInputCapabilities::new

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    fn HostInputCapabilities::new(pointer? : Bool, scroll? : Bool, keyboard? : Bool, focus? : Bool, text_input? : Bool, ime? : Bool, clipboard? : Bool, drag_drop? : Bool) -> HostInputCapabilities

    HostInputCapabilities::none

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    HostInputCapabilities::not_equal

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    HostInputCapabilities::to_json

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    HostInputCapabilities::to_repr

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    HostInputContract

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    pub(all) struct HostInputContract {
      capabilities : HostInputCapabilities
      coordinates : HostCoordinatePolicy
    } derive(Eq, ToJson, 
    Debug    )

    HostInputContract::equal

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    HostInputContract::new

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    HostInputContract::not_equal

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    fn HostInputContract::not_equal(x : HostInputContract, y : HostInputContract) -> Bool

    HostInputContract::to_json

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    HostInputContract::to_repr

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    HostModalCapabilities

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    pub(all) struct HostModalCapabilities {
      native_modal : Bool
      surface_attach : Bool
      input_transform : Bool
      semantics_bridge : Bool
    } derive(Eq, ToJson, 
    Debug    )

    Capabilities are declarative; a missing capability must transparently use the view-level presentation path.

    HostModalCapabilities::equal

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    HostModalCapabilities::full

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    HostModalCapabilities::not_equal

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    HostModalCapabilities::supports_input_transform

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    fn HostModalCapabilities::supports_input_transform(self : HostModalCapabilities) -> Bool

    HostModalCapabilities::supports_native_modal

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    fn HostModalCapabilities::supports_native_modal(self : HostModalCapabilities) -> Bool

    HostModalCapabilities::supports_semantics_bridge

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    fn HostModalCapabilities::supports_semantics_bridge(self : HostModalCapabilities) -> Bool

    HostModalCapabilities::supports_surface_attach

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    fn HostModalCapabilities::supports_surface_attach(self : HostModalCapabilities) -> Bool

    HostModalCapabilities::to_json

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    HostModalCapabilities::to_repr

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    HostModalCapabilities::unavailable

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    HostModalEvent

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    pub(all) enum HostModalEvent {
      Pending(Int, String, Int)
      Accepted(Int, String, Int)
      Rejected(Int, String, Int, String)
      Closed(Int, String, Int)
      SurfaceAttached(Int, String, Int, String)
      SurfaceDetached(Int, String, Int, String)
      Input(Int, String, Int, 
    PointerEvent    )
    } derive(Eq, ToJson, 
    Debug    )

    Typed host lifecycle facts returned to the runtime/TEA boundary.

    HostModalEvent::equal

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    HostModalEvent::not_equal

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    fn HostModalEvent::not_equal(x : HostModalEvent, y : HostModalEvent) -> Bool

    HostModalEvent::to_json

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    HostModalEvent::to_repr

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    HostModalModality

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    pub(all) enum HostModalModality {
      NonModal
      Modal
    } derive(Eq, ToJson, 
    Debug    )

    HostModalModality::equal

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    HostModalModality::not_equal

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    fn HostModalModality::not_equal(x : HostModalModality, y : HostModalModality) -> Bool

    HostModalModality::to_json

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    HostModalModality::to_repr

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    HostModalRequest

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    pub(all) struct HostModalRequest {
      request_id : Int
      presentation_id : String
      generation : Int
      bounds : 
    Rect
      modality : HostModalModality
      semantics_generation : Int
    } derive(Eq, ToJson, 
    Debug    )

    Neutral request to present an existing MoUI surface in a host-owned modal layer. The host never receives application state or a second content model.

    HostModalRequest::bounds

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    HostModalRequest::equal

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    HostModalRequest::generation

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    fn HostModalRequest::generation(self : HostModalRequest) -> Int

    HostModalRequest::modality

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    HostModalRequest::new

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    fn HostModalRequest::new(request_id~ : Int, presentation_id~ : String, generation~ : Int, bounds~ : 
    Rect    , modality? : HostModalModality, semantics_generation? : Int) -> HostModalRequest

    HostModalRequest::not_equal

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    fn HostModalRequest::not_equal(x : HostModalRequest, y : HostModalRequest) -> Bool

    HostModalRequest::presentation_id

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    fn HostModalRequest::presentation_id(self : HostModalRequest) -> String

    HostModalRequest::request_id

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    fn HostModalRequest::request_id(self : HostModalRequest) -> Int

    HostModalRequest::semantics_generation

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    fn HostModalRequest::semantics_generation(self : HostModalRequest) -> Int

    HostModalRequest::to_json

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    HostModalRequest::to_repr

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    HostModalResult

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    pub(all) enum HostModalResult {
      Accepted
      Rejected(String)
      Closed
    } derive(Eq, ToJson, 
    Debug    )

    Result of accepting or rejecting a request. Pending is represented by the absence of a result while the host negotiates capabilities.

    HostModalResult::equal

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    HostModalResult::not_equal

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    fn HostModalResult::not_equal(x : HostModalResult, y : HostModalResult) -> Bool

    HostModalResult::to_json

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    HostModalResult::to_repr

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    HostPendingServiceRequest

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    pub(all) struct HostPendingServiceRequest {
      id : HostServiceRequestId
      request : HostServiceRequest
    } derive(Eq, ToJson, 
    Debug    )

    HostPendingServiceRequest::equal

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    HostPendingServiceRequest::not_equal

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    HostPendingServiceRequest::to_json

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    HostPendingServiceRequest::to_repr

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    HostScrollDelta

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    HostScrollDelta::equal

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    HostScrollDelta::not_equal

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    fn HostScrollDelta::not_equal(x : HostScrollDelta, y : HostScrollDelta) -> Bool

    HostScrollDelta::to_json

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    HostScrollDelta::to_logical_pixels

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    fn HostScrollDelta::to_logical_pixels(self : HostScrollDelta, line_extent? : Double) -> 
    Point

    HostScrollDelta::to_repr

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    HostScrollEvent

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    pub(all) struct HostScrollEvent {
      position : 
    Point
      delta : HostScrollDelta
      phase : HostScrollPhase
    } derive(Eq, ToJson, 
    Debug    )

    HostScrollEvent::equal

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    HostScrollEvent::new

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    HostScrollEvent::not_equal

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    fn HostScrollEvent::not_equal(x : HostScrollEvent, y : HostScrollEvent) -> Bool

    HostScrollEvent::to_json

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    HostScrollEvent::to_pointer_event

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    HostScrollEvent::to_repr

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    HostScrollPhase

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    pub(all) enum HostScrollPhase {
      Started
      Moved
      Ended
      Cancelled
    } derive(Eq, ToJson, 
    Debug    )

    HostScrollPhase::equal

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    HostScrollPhase::not_equal

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    fn HostScrollPhase::not_equal(x : HostScrollPhase, y : HostScrollPhase) -> Bool

    HostScrollPhase::to_json

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    HostScrollPhase::to_repr

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    HostServiceBridge

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    pub struct HostServiceBridge {
      // private fields
    }

    HostServiceBridge::can_handle

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    fn HostServiceBridge::can_handle(self : HostServiceBridge, request : HostServiceRequest) -> Bool

    HostServiceBridge::capabilities

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    HostServiceBridge::dispatch

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    HostServiceBridge::environment_with_system_theme

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    HostServiceBridge::new

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    HostServiceBridge::query_system_theme

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    HostServiceBridge::unavailable

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    HostServiceCapabilities

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    pub(all) struct HostServiceCapabilities {
      clipboard : Bool
      menus : Bool
      file_dialogs : Bool
      file_access : Bool
      open_url : Bool
      system_theme : Bool
      settings : Bool
    } derive(Eq, ToJson, 
    Debug    )

    HostServiceCapabilities::enabled_labels

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    fn HostServiceCapabilities::enabled_labels(self : HostServiceCapabilities) -> Array[String]

    HostServiceCapabilities::equal

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    HostServiceCapabilities::new

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    fn HostServiceCapabilities::new(clipboard? : Bool, menus? : Bool, file_dialogs? : Bool, file_access? : Bool, open_url? : Bool, system_theme? : Bool, settings? : Bool) -> HostServiceCapabilities

    HostServiceCapabilities::none

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    HostServiceCapabilities::not_equal

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    HostServiceCapabilities::to_json

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    HostServiceCapabilities::to_repr

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    HostServiceKind

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    pub(all) enum HostServiceKind {
      ClipboardService
      MenuService
      FileDialogService
      TextFileService
      BinaryFileService
      OpenUrlService
      SystemThemeService
      SettingsService
      DirectoryListingService
      FileDeleteService
      PlatformChannelService
    } derive(Eq, ToJson, 
    Debug    )

    HostServiceKind::equal

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    HostServiceKind::not_equal

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    fn HostServiceKind::not_equal(x : HostServiceKind, y : HostServiceKind) -> Bool

    HostServiceKind::to_json

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    HostServiceKind::to_repr

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    HostServiceRequest

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    pub(all) enum HostServiceRequest {
      Clipboard(HostClipboardRequest)
      ShowMenu(Array[
    ActionCommand    ])
      SetApplicationMenu(Array[HostApplicationMenu])
      FileDialog(HostFileDialogOptions)
      TextFile(HostTextFileRequest)
      BinaryFile(HostBinaryFileRequest)
      OpenUrl(String)
      QuerySystemTheme
      Settings(HostSettingsRequest)
      ListDirectory(String)
      DeleteFile(String)
      PlatformChannel(PlatformChannelRequest)
    } derive(Eq, ToJson, 
    Debug    )

    HostServiceRequest::equal

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    HostServiceRequest::kind

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    HostServiceRequest::not_equal

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    HostServiceRequest::to_json

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    HostServiceRequest::to_repr

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    HostServiceRequest::unavailable_message

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    fn HostServiceRequest::unavailable_message(self : HostServiceRequest) -> String

    HostServiceRequestId

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    pub(all) struct HostServiceRequestId {
      value : Int
    } derive(Eq, ToJson, 
    Debug    )

    HostServiceRequestId::equal

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    HostServiceRequestId::new

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    HostServiceRequestId::not_equal

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    HostServiceRequestId::to_json

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    HostServiceRequestId::to_repr

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    HostServiceResponse

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    pub(all) enum HostServiceResponse {
      Unavailable(String)
      Pending(HostServiceRequestId)
      ClipboardText(String)
      ClipboardWritten
      ClipboardImage(Bytes)
      MenuAction(
    ActionCommand    )
      MenuCommand(
    CommandIntent    )
      ApplicationMenuInstalled
      FileDialogSelection(Array[String])
      TextFileContent(String, String)
      TextFileWritten(String)
      BinaryFileContent(String, Bytes)
      BinaryFileWritten(String)
      UrlOpened
      SystemTheme(
    ColorScheme    )
      SettingValue(String?)
      SettingWritten
      SettingRemoved
      DirectoryListing(String, Array[HostDirectoryEntry])
      FileDeleted(String)
      PlatformChannel(PlatformChannelResponse)
    } derive(Eq, ToJson, 
    Debug    )

    HostServiceResponse::binary_file_diagnostic

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    HostServiceResponse::equal

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    HostServiceResponse::is_pending

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    fn HostServiceResponse::is_pending(self : HostServiceResponse) -> Bool

    HostServiceResponse::not_equal

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    HostServiceResponse::to_json

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    HostServiceResponse::to_repr

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    HostSettingsRequest

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    pub(all) enum HostSettingsRequest {
      Read(String)
      Write(String, String)
      Remove(String)
    } derive(Eq, ToJson, 
    Debug    )

    HostSettingsRequest::equal

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    HostSettingsRequest::not_equal

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    HostSettingsRequest::to_json

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    HostSettingsRequest::to_repr

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    HostTextFileRequest

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    pub(all) enum HostTextFileRequest {
      ReadText(String)
      WriteText(String, String)
    } derive(Eq, ToJson, 
    Debug    )

    HostTextFileRequest::equal

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    HostTextFileRequest::not_equal

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    HostTextFileRequest::to_json

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    HostTextFileRequest::to_repr

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    PlatformChannelRequest

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    pub(all) struct PlatformChannelRequest {
      channel : String
      operation : String
      payload : String
    } derive(Eq, ToJson, 
    Debug    )

    PlatformChannelRequest::equal

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    PlatformChannelRequest::new

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    fn PlatformChannelRequest::new(channel~ : String, operation~ : String, payload? : String) -> PlatformChannelRequest

    PlatformChannelRequest::not_equal

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    PlatformChannelRequest::to_json

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    PlatformChannelRequest::to_repr

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    PlatformChannelResponse

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    pub(all) enum PlatformChannelResponse {
      Ok(String)
      Unavailable(String)
      Error(String)
    } derive(Eq, ToJson, 
    Debug    )

    PlatformChannelResponse::equal

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    PlatformChannelResponse::not_equal

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    PlatformChannelResponse::to_json

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    PlatformChannelResponse::to_repr

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    PlatformViewPlugin

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    pub struct PlatformViewPlugin {
      kind : String
      capabilities_summary : String
      install_event_dispatcher : ((UInt64, String, 
    PlatformViewEvent    ) -> Unit) -> Unit
      sync_platform_views : (UInt64, 
    DrawFrame    , Double) -> Unit
      drain_commands : (UInt64) -> Unit
      dispose_platform_views : (UInt64) -> Unit
      setup_platform_view_draw : (UInt64, 
    DrawFrame    , Double, ((
    PlatformViewPixelSink    ) -> Unit) -> Unit) -> Unit?
      poll_native : () -> Int64??
    }

    Platform-agnostic platform-view host plugin. Holds callbacks for every touchpoint between the MoUI rendering loop and a native platform view.

    • kind – the PlatformViewPlacement.kind this plugin owns (e.g. "web_view"). Used to filter frame.platform_views and to route native events. Two plugins must not share a kind.
    • capabilities_summary – human-readable description of the backend (e.g. "available" / "unavailable").
    • install_event_dispatcher – called once at app startup to wire the native event callback.
    • sync_platform_views – called each redraw to position/resize native views to match the current layout frame. The plugin filters frame.platform_views by its own kind.
    • drain_commands – called each redraw to flush queued commands (LoadUrl, Reload, etc.) to the native bridge.
    • dispose_platform_views – called when a window is torn down.
    • setup_platform_view_draw – optional callback used by the Linux offscreen-rendering path to inject a pixel-draw function between command rendering and buffer flush. Receives the native window handle, the renderer, the current frame, and the content offset. None on macOS/Windows.
    • poll_native – optional native event-pump probe used by backends whose platform view runs a nested event loop (Linux WebKitGTK). Returns the absolute deadline (ms) of the next outstanding native work, or None when there is nothing pending. The host uses the earliest non-None deadline to keep the event loop spinning via ControlFlow::wait_until; None on macOS/Windows.

    PlatformViewPlugin::new

    source
    fn PlatformViewPlugin::new(kind~ : String, capabilities_summary~ : String, install_event_dispatcher~ : ((UInt64, String, 
    PlatformViewEvent    ) -> Unit) -> Unit, sync_platform_views~ : (UInt64, 
    DrawFrame    , Double) -> Unit, drain_commands~ : (UInt64) -> Unit, dispose_platform_views~ : (UInt64) -> Unit, setup_platform_view_draw? : (UInt64, 
    DrawFrame    , Double, ((
    PlatformViewPixelSink    ) -> Unit) -> Unit) -> Unit?, poll_native? : () -> Int64??) -> PlatformViewPlugin

    WindowId

    source
    pub(all) struct WindowId {
      value : Int
    } derive(Eq, ToJson, 
    Debug    )

    WindowId::equal

    source
    fn WindowId::equal(WindowId, WindowId) -> Bool

    WindowId::new

    source
    fn WindowId::new(value : Int) -> WindowId

    WindowId::not_equal

    source
    fn WindowId::not_equal(x : WindowId, y : WindowId) -> Bool

    WindowId::to_json

    source
    fn WindowId::to_json(WindowId) -> Json

    WindowId::to_repr

    source

    WindowLifecyclePhase

    source
    pub(all) enum WindowLifecyclePhase {
      WindowCreated
      WindowVisible
      WindowFocused
      WindowMinimized
      WindowCloseRequested
      WindowClosed
    } derive(Eq, ToJson, 
    Debug    )

    WindowLifecyclePhase::equal

    source

    WindowLifecyclePhase::not_equal

    source

    WindowLifecyclePhase::to_json

    source

    WindowLifecyclePhase::to_repr

    source

    WindowOpenRequest

    source
    pub(all) struct WindowOpenRequest {
      title : String
      scene : WindowScene
      metrics : 
    SurfaceMetrics
      primary : Bool
    } derive(Eq, ToJson, 
    Debug    )

    WindowOpenRequest::equal

    source

    WindowOpenRequest::new

    source
    fn WindowOpenRequest::new(title~ : String, scene? : WindowScene, metrics~ : 
    SurfaceMetrics    , primary? : Bool) -> WindowOpenRequest

    WindowOpenRequest::not_equal

    source
    fn WindowOpenRequest::not_equal(x : WindowOpenRequest, y : WindowOpenRequest) -> Bool

    WindowOpenRequest::to_json

    source

    WindowOpenRequest::to_repr

    source

    WindowRecord

    source
    pub(all) struct WindowRecord {
      id : WindowId
      title : String
      scene : WindowScene
      metrics : 
    SurfaceMetrics
      phase : WindowLifecyclePhase
      primary : Bool
    } derive(Eq, ToJson, 
    Debug    )

    WindowRecord::equal

    source

    WindowRecord::new

    source
    fn WindowRecord::new(id~ : WindowId, title~ : String, scene? : WindowScene, metrics~ : 
    SurfaceMetrics    , phase? : WindowLifecyclePhase, primary? : Bool) -> WindowRecord

    WindowRecord::not_equal

    source
    fn WindowRecord::not_equal(x : WindowRecord, y : WindowRecord) -> Bool

    WindowRecord::to_json

    source

    WindowRecord::to_repr

    source

    WindowRequest

    source
    pub(all) enum WindowRequest {
      OpenWindow(WindowOpenRequest)
      FocusWindow(WindowId)
      CloseWindow(WindowId)
      ResizeWindow(WindowId, 
    SurfaceMetrics    )
      MinimizeWindow(WindowId)
      ShowWindow(WindowId)
      SetPrimaryWindow(WindowId)
    } derive(Eq, ToJson, 
    Debug    )

    WindowRequest::equal

    source

    WindowRequest::not_equal

    source
    fn WindowRequest::not_equal(x : WindowRequest, y : WindowRequest) -> Bool

    WindowRequest::to_json

    source

    WindowRequest::to_repr

    source

    WindowRequestCompletion

    source
    pub(all) struct WindowRequestCompletion {
      request : WindowRequest
      result : WindowRequestResult
    } derive(Eq, ToJson, 
    Debug    )

    WindowRequestCompletion::equal

    source

    WindowRequestCompletion::not_equal

    source

    WindowRequestCompletion::to_json

    source

    WindowRequestCompletion::to_repr

    source

    WindowRequestResult

    source
    pub(all) enum WindowRequestResult {
      WindowOpened(WindowId)
      WindowUpdated(WindowId)
      WindowRejected(String)
    } derive(Eq, ToJson, 
    Debug    )

    WindowRequestResult::equal

    source

    WindowRequestResult::not_equal

    source

    WindowRequestResult::to_json

    source

    WindowRequestResult::to_repr

    source

    WindowRequests

    source
    pub struct WindowRequests {
      push_fn : (WindowRequest) -> Unit
      pending_count_fn : () -> Int
      completed_count_fn : () -> Int
      drain_fn : () -> Array[WindowRequest]
      record_result_fn : (WindowRequest, WindowRequestResult) -> Unit
      subscribe_completed_fn : ((WindowRequestCompletion) -> Unit) -> (() -> Unit)
    }

    Stateless request port shared by runtime composition and backend/common. Queue storage and completion fanout live in backend/common.

    WindowRequests::completed_count

    source
    fn WindowRequests::completed_count(self : WindowRequests) -> Int

    WindowRequests::drain

    source

    WindowRequests::drain_with_handler

    source

    WindowRequests::new

    source
    fn WindowRequests::new(push? : (WindowRequest) -> Unit, pending_count? : () -> Int, completed_count? : () -> Int, drain? : () -> Array[WindowRequest], record_result? : (WindowRequest, WindowRequestResult) -> Unit, subscribe_completed? : ((WindowRequestCompletion) -> Unit) -> (() -> Unit)) -> WindowRequests

    WindowRequests::pending_count

    source
    fn WindowRequests::pending_count(self : WindowRequests) -> Int

    WindowRequests::push

    source
    fn WindowRequests::push(self : WindowRequests, request : WindowRequest) -> Unit

    WindowRequests::record_result

    source
    fn WindowRequests::record_result(self : WindowRequests, request : WindowRequest, result : WindowRequestResult) -> Unit

    WindowRequests::subscribe_completed

    source
    fn WindowRequests::subscribe_completed(self : WindowRequests, handle : (WindowRequestCompletion) -> Unit) -> (() -> Unit)

    WindowRequests::unavailable

    source
    fn WindowRequests::unavailable() -> WindowRequests

    WindowScene

    source
    pub(all) struct WindowScene {
      scene_id : String
      payload : String
    } derive(Eq, ToJson, 
    Debug    )

    WindowScene::equal

    source
    fn WindowScene::equal(WindowScene, WindowScene) -> Bool

    WindowScene::main

    source
    fn WindowScene::main() -> WindowScene

    WindowScene::new

    source
    fn WindowScene::new(scene_id~ : String, payload? : String) -> WindowScene

    WindowScene::not_equal

    source
    fn WindowScene::not_equal(x : WindowScene, y : WindowScene) -> Bool

    WindowScene::to_json

    source
    fn WindowScene::to_json(WindowScene) -> Json

    WindowScene::to_repr

    source

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