Struct InertPlatform 

pub struct InertPlatform;

Platform for hand-pumped tests.

Trait Implementations

impl Platform for InertPlatform

fn target_platform(&self) -> TargetPlatform

Android, which is what Flutter’s own test binding defaults debugDefaultTargetPlatform to: a bare App has no host to speak of, and a deterministic answer beats the machine’s.

fn request_frame(&self)

Requests one isolate frame at the host’s next appropriate opportunity.

fn now(&self) -> Instant

The host clock used for frame and timer timestamps.

fn wake_at(&self, _deadline: Instant)

Asks the host to wake the application at deadline.

fn views(&self) -> Vec<ViewRef>

Current host-provided views.

fn view(&self, _id: ViewId) -> Option<ViewRef>

Looks up a current host-provided view.

fn implicit_view(&self) -> Option<ViewRef>

The stable implicit view, when this embedding provides one.

fn open_image_codec(&self, bytes: Arc<[u8]>) -> ImageCodecFuture

Open an encoded image, answering with a codec for its frames.

fn import_pixels(&self, pixels: PixelBuffer) -> Option<Image>

An image from pixels the app already holds, with no codec in between: Flutter’s decodeImageFromPixels. None when the host has no renderer to put it on yet.

fn handles_text_editing_keys(&self) -> bool

Whether the host’s own text input turns editing keys into edits before the framework sees them — backspace and delete, caret movement, the line and document ends.

fn locales(&self) -> Vec<Locale>

The full system-reported supported locales of the device (Flutter PlatformDispatcher.locales), in order of preference; empty until the host reports them.

fn set_application_locale(&self, locale: &Locale)

Tells the host which locale the application resolved to (Flutter PlatformDispatcher.setApplicationLocale); the default drops it.

fn default_route_name(&self) -> String

The route the application was started with (Flutter PlatformDispatcher.defaultRouteName).

fn set_application_switcher_description( &self, description: &ApplicationSwitcherDescription, )

Describes the app in the host’s application switcher (Flutter SystemChrome.setApplicationSwitcherDescription); the default drops it.

fn set_system_ui_overlay_style(&self, style: &SystemUiOverlayStyle)

Styles the system overlays the host draws over the app — the status bar, and on Android the system navigation bar (Flutter SystemChrome.setSystemUIOverlayStyle); the default drops it.

fn haptic_feedback(&self, kind: HapticFeedbackType)

Plays haptic feedback on the device (Flutter’s HapticFeedback.vibrate message on SystemChannels.platform); the default drops it.

fn clipboard_set_data(&self, text: &str)

Stores plain text on the system clipboard (Flutter’s Clipboard.setData message on SystemChannels.platform); the default drops it.

fn clipboard_get_data(&self) -> Option<String>

Retrieves plain text from the system clipboard (Flutter’s Clipboard.getData); the default answers None.

fn clipboard_has_strings(&self) -> bool

Whether the clipboard contains string data (Flutter’s Clipboard.hasStrings); the default answers false.

fn supports_showing_system_context_menu(&self) -> bool

Whether this host can show a system-rendered context menu (Flutter PlatformDispatcher.supportsShowingSystemContextMenu).

fn show_system_context_menu( &self, target_rect: Rect, items: Option<&[SystemContextMenuItem]>, )

Shows the system context menu (Flutter’s ContextMenu.showSystemContextMenu).

fn hide_system_context_menu(&self)

Hides the system context menu (Flutter’s ContextMenu.hideSystemContextMenu).

fn show_popup_menu(&self, entries: &[PopupMenuEntry]) -> Option<usize>

Shows entries as the platform’s own popup menu at the pointer and waits for it to close; answers the index of the entry chosen. Not a Flutter call: Flutter’s context menus draw inside the view, and a desktop panel narrower than its menu needs the system’s, which is its own window.

fn look_up(&self, text: &str)

Looks up the given text (Flutter’s LookUp.invoke).

fn search_web(&self, text: &str)

Searches the web for the given text (Flutter’s SearchWeb.invoke).

fn share(&self, text: &str)

Shares the given text (Flutter’s Share.invoke).

fn platform_brightness(&self) -> Brightness

The platform’s light/dark preference (Flutter PlatformDispatcher.platformBrightness).

fn request_view_focus_change( &self, view_id: ViewId, state: ViewFocusState, direction: ViewFocusDirection, )

Flutter PlatformDispatcher.requestViewFocusChange: asks the host to move view focus. A host without native focus support ignores the request.

fn windowing_owner(&self) -> Option<Rc<dyn WindowingOwner>>

The host’s window maker, for an app that opens windows of its own. None, the default, where the implicit view is the only one there can be: mobile and the web.

fn font_source(&self) -> Option<Box<dyn FontSource>>

The platform’s own font lookup: faces by family name and by codepoint, the way Flutter’s engine asks the OS. None for a host without one; text then shapes only against fonts the application registers.

fn activate_system_cursor(&self, device: i64, kind: SystemMouseCursorKind)

Shows a system cursor for a pointing device (Flutter’s activateSystemCursor message on SystemChannels.mouseCursor).

fn restoration_get(&self) -> Option<RestorationUpdate>

The restoration data the host kept for this application (the get message of Flutter’s SystemChannels.restoration).

fn restoration_put(&self, data: RestorationMap)

Hands the host the current restoration data (the put message of Flutter’s SystemChannels.restoration), which keeps it until the operating system asks for it.