Crate cranpose 

High level utilities for running Cranpose applications with minimal boilerplate.

Modules

desktop

Desktop runtime for Compose applications.

fling_animation

Re-export the UI crate so applications can depend on a single crate. Fling animation driver for scroll containers.

http

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate.

layout

Re-export the UI crate so applications can depend on a single crate.

prelude

Convenience imports for Cranpose applications.

recorder

Input event recorder for generating robot tests from manual interactions.

scroll

Re-export the UI crate so applications can depend on a single crate. Scroll state and node implementation for cranpose.

text

Re-export the UI crate so applications can depend on a single crate.

text_field_focus

Re-export the UI crate so applications can depend on a single crate. Global focus manager for text fields.

text_layout_result

Re-export the UI crate so applications can depend on a single crate. Text layout result with cached glyph positions.

uri_handler

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate.

widgets

Re-export the UI crate so applications can depend on a single crate. UI Widget components

Macros

rememberScrollState

Re-export the UI crate so applications can depend on a single crate. Creates a remembered ScrollState.

Structs

Alignment

Re-export the UI crate so applications can depend on a single crate. Alignment across both axes used for positioning content within a box.

AlphaElement

Re-export the UI crate so applications can depend on a single crate. Element that creates and updates alpha nodes.

AlphaNode

Re-export the UI crate so applications can depend on a single crate. Node that applies alpha transparency to its content.

AppLauncher

Platform-agnostic application launcher.

AppSettings

Configuration for application settings.

BackgroundElement

Re-export the UI crate so applications can depend on a single crate. Element that creates and updates background nodes.

BackgroundNode

Re-export the UI crate so applications can depend on a single crate. Node that draws a background behind its content.

BasicTextFieldOptions

Re-export the UI crate so applications can depend on a single crate. Options for customizing BasicTextField appearance and behavior.

BlurredEdgeTreatment

Re-export the UI crate so applications can depend on a single crate. Controls blur behavior outside source bounds.

BoxSpec

Re-export the UI crate so applications can depend on a single crate. Specification for Box layout behavior.

BoxWithConstraintsScopeImpl

Re-export the UI crate so applications can depend on a single crate. Concrete implementation of BoxWithConstraintsScope.

ClickableElement

Re-export the UI crate so applications can depend on a single crate. Element that creates and updates clickable nodes.

ClickableNode

Re-export the UI crate so applications can depend on a single crate.

Color

Re-export the UI crate so applications can depend on a single crate.

ColumnSpec

Re-export the UI crate so applications can depend on a single crate. Specification for Column layout behavior.

Composition

Re-export the UI crate so applications can depend on a single crate.

Constraints

Re-export the UI crate so applications can depend on a single crate. Constraints used during layout measurement.

CornerRadii

Re-export the UI crate so applications can depend on a single crate.

CornerShapeElement

Re-export the UI crate so applications can depend on a single crate. Element that creates and updates corner shape nodes.

CornerShapeNode

Re-export the UI crate so applications can depend on a single crate. Node that tracks the latest rounded corner shape.

DevOptions

FPS monitoring API - use these to track frame rate for performance optimization.

Dp

Re-export the UI crate so applications can depend on a single crate. Density-independent pixels

DpOffset

Re-export the UI crate so applications can depend on a single crate. Density-independent offset for shadows.

DrawCacheBuilder

Re-export the UI crate so applications can depend on a single crate.

EdgeInsets

Re-export the UI crate so applications can depend on a single crate. Padding values for each edge of a rectangle.

FillElement

Re-export the UI crate so applications can depend on a single crate. Element that creates and updates fill nodes.

FillNode

Re-export the UI crate so applications can depend on a single crate. Node that fills the maximum available space in one or both dimensions.

FocusManager

Re-export the UI crate so applications can depend on a single crate. Focus manager that tracks and manages focus state across the composition.

FpsStats

FPS monitoring API - use these to track frame rate for performance optimization.

GraphicsLayer

Re-export the UI crate so applications can depend on a single crate.

HeadlessRenderer

Re-export the UI crate so applications can depend on a single crate. A lightweight renderer that walks the layout tree and materialises paint commands.

ImageBitmap

Re-export the UI crate so applications can depend on a single crate. Immutable RGBA image data used by UI primitives and render backends.

KeyEvent

Re-export the UI crate so applications can depend on a single crate. A keyboard input event.

LayoutBox

Re-export the UI crate so applications can depend on a single crate. Layout information for a single node.

LayoutMeasurements

Re-export the UI crate so applications can depend on a single crate. Result of running the measure pass for a Compose layout tree.

LayoutNode

Re-export the UI crate so applications can depend on a single crate.

LayoutNodeData

Re-export the UI crate so applications can depend on a single crate. Snapshot of the data required to render a layout node.

LayoutTree

Re-export the UI crate so applications can depend on a single crate. Result of running layout for a Compose tree.

LazyColumnSpec

Re-export the UI crate so applications can depend on a single crate. Specification for LazyColumn layout behavior.

LazyListItemInfo

Re-export the UI crate so applications can depend on a single crate. Information about a single visible item in a lazy list.

LazyListLayoutInfo

Re-export the UI crate so applications can depend on a single crate. Information about the currently visible items in a lazy list.

LazyListState

Re-export the UI crate so applications can depend on a single crate. State object for lazy list scroll position tracking.

LazyRowSpec

Re-export the UI crate so applications can depend on a single crate. Specification for LazyRow layout behavior.

MeasureResult

Re-export the UI crate so applications can depend on a single crate. Result of a measurement operation.

Modifier

Re-export the UI crate so applications can depend on a single crate. A modifier chain that can be applied to composable elements.

ModifierChainTraceGuard

Re-export the UI crate so applications can depend on a single crate. RAII guard returned when installing a modifier chain trace subscriber.

ModifierNodeSlices

Re-export the UI crate so applications can depend on a single crate. Snapshot of modifier node slices that impact draw and pointer subsystems.

Modifiers

Re-export the UI crate so applications can depend on a single crate. Modifier keys state.

OffsetElement

Re-export the UI crate so applications can depend on a single crate. Element that creates and updates offset nodes.

OffsetNode

Re-export the UI crate so applications can depend on a single crate. Node that offsets its content by a fixed (x, y) amount.

PaddingElement

Re-export the UI crate so applications can depend on a single crate. Element that creates and updates padding nodes.

PaddingNode

Re-export the UI crate so applications can depend on a single crate. Node that adds padding around its content.

Painter

Re-export the UI crate so applications can depend on a single crate.

ParagraphStyle

Re-export the UI crate so applications can depend on a single crate.

Placement

Re-export the UI crate so applications can depend on a single crate. Placement information for a measured child.

PlatformParagraphStyle

Re-export the UI crate so applications can depend on a single crate.

PlatformSpanStyle

Re-export the UI crate so applications can depend on a single crate.

PlatformTextStyle

Re-export the UI crate so applications can depend on a single crate.

Point

Re-export the UI crate so applications can depend on a single crate.

PointerEvent

Re-export the UI crate so applications can depend on a single crate. Pointer event with consumption tracking for gesture disambiguation.

PointerInputScope

Re-export the UI crate so applications can depend on a single crate.

PreparedTextLayout

Re-export the UI crate so applications can depend on a single crate.

RecordedRenderScene

Re-export the UI crate so applications can depend on a single crate. A collection of render operations for a composed scene.

Rect

Re-export the UI crate so applications can depend on a single crate.

ResolvedBackground

Re-export the UI crate so applications can depend on a single crate.

ResolvedModifiers

Re-export the UI crate so applications can depend on a single crate.

RoundedCornerShape

Re-export the UI crate so applications can depend on a single crate.

RowSpec

Re-export the UI crate so applications can depend on a single crate. Specification for Row layout behavior.

RuntimeShader

Re-export the UI crate so applications can depend on a single crate. A custom WGSL shader effect, analogous to Android’s RuntimeShader.

ScrollElement

Re-export the UI crate so applications can depend on a single crate. Element for creating a ScrollNode.

ScrollNode

Re-export the UI crate so applications can depend on a single crate. ScrollNode layout modifier that physically moves content based on scroll position. This is the component that actually reads ScrollState and applies the visual offset.

ScrollState

Re-export the UI crate so applications can depend on a single crate. State object for scroll position tracking.

SemanticsCallback

Re-export the UI crate so applications can depend on a single crate. Discrete event callback reference produced during semantics extraction.

SemanticsNode

Re-export the UI crate so applications can depend on a single crate. A single node within the semantics tree.

SemanticsTree

Re-export the UI crate so applications can depend on a single crate. Rooted semantics tree extracted after layout.

Shadow

Re-export the UI crate so applications can depend on a single crate. Static shadow configuration.

ShadowScope

Re-export the UI crate so applications can depend on a single crate. Pixel-space shadow scope used by block-based APIs.

Size

Re-export the UI crate so applications can depend on a single crate.

SizeElement

Re-export the UI crate so applications can depend on a single crate. Element that creates and updates size nodes.

SizeNode

Re-export the UI crate so applications can depend on a single crate. Node that enforces size constraints on its content.

SnapshotState

Re-export the UI crate so applications can depend on a single crate.

SpanStyle

Re-export the UI crate so applications can depend on a single crate.

StringAnnotation

Re-export the UI crate so applications can depend on a single crate. Mirrors Jetpack Compose’s AnnotatedString.Range<String> — a tag+value annotation covering a byte range.

SubcomposeLayoutNode

Re-export the UI crate so applications can depend on a single crate. Node responsible for orchestrating measure-time subcomposition.

SubcomposeMeasureScopeImpl

Re-export the UI crate so applications can depend on a single crate. Concrete implementation of SubcomposeMeasureScope.

TextFieldElement

Re-export the UI crate so applications can depend on a single crate. Element that creates and updates TextFieldModifierNode instances.

TextFieldModifierNode

Re-export the UI crate so applications can depend on a single crate.

TextLayoutOptions

Re-export the UI crate so applications can depend on a single crate. Text layout behavior options matching Compose BasicText controls.

TextMetrics

Re-export the UI crate so applications can depend on a single crate.

TextModifierElement

Re-export the UI crate so applications can depend on a single crate. Element that creates and updates TextModifierNode instances.

TextModifierNode

Re-export the UI crate so applications can depend on a single crate. Node that stores text content and handles measurement, drawing, and semantics.

TextStyle

Re-export the UI crate so applications can depend on a single crate.

TransformOrigin

Re-export the UI crate so applications can depend on a single crate.

Enums

BlendMode

Re-export the UI crate so applications can depend on a single crate. Blend mode used for draw primitives.

Brush

Re-export the UI crate so applications can depend on a single crate.

ColorFilter

Re-export the UI crate so applications can depend on a single crate. Simple image color filter model.

CompositingStrategy

Re-export the UI crate so applications can depend on a single crate. Controls how a graphics layer is composited into its parent target.

ContentScale

Re-export the UI crate so applications can depend on a single crate.

DrawCommand

Re-export the UI crate so applications can depend on a single crate.

FillDirection

Re-export the UI crate so applications can depend on a single crate. Direction for fill modifiers (horizontal, vertical, or both).

HorizontalAlignment

Re-export the UI crate so applications can depend on a single crate. Alignment along the horizontal axis.

HttpError

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate.

IntrinsicSize

Re-export the UI crate so applications can depend on a single crate. Specifies how to size a component based on its intrinsic measurements.

KeyCode

Re-export the UI crate so applications can depend on a single crate. Physical key codes for keyboard input.

KeyEventType

Re-export the UI crate so applications can depend on a single crate. Type of keyboard event.

LayerShape

Re-export the UI crate so applications can depend on a single crate.

LayoutNodeKind

Re-export the UI crate so applications can depend on a single crate. Classification of the node captured inside a LayoutBox.

LinearArrangement

Re-export the UI crate so applications can depend on a single crate. Arrangement strategy matching Jetpack Compose’s linear arrangements.

LinkAnnotation

Re-export the UI crate so applications can depend on a single crate. Mirrors Jetpack Compose’s LinkAnnotation sealed class.

PaintLayer

Re-export the UI crate so applications can depend on a single crate. Layer that a paint operation targets within the rendering pipeline.

PointerEventKind

Re-export the UI crate so applications can depend on a single crate.

RenderEffect

Re-export the UI crate so applications can depend on a single crate. A render effect applied to a graphics layer’s rendered content.

RenderOp

Re-export the UI crate so applications can depend on a single crate. A rendered operation emitted by the headless renderer stub.

SemanticsAction

Re-export the UI crate so applications can depend on a single crate. Semantics action exposed to the input system.

SemanticsRole

Re-export the UI crate so applications can depend on a single crate. Semantic role describing how a node should participate in accessibility and hit testing. Roles are now derived from SemanticsConfiguration rather than widget types.

TextDrawStyle

Re-export the UI crate so applications can depend on a single crate.

TextOverflow

Re-export the UI crate so applications can depend on a single crate. How overflowing text should be handled.

UriHandlerError

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate.

VerticalAlignment

Re-export the UI crate so applications can depend on a single crate. Alignment along the vertical axis.

Constants

DEFAULT_ALPHA

Re-export the UI crate so applications can depend on a single crate.

Traits

Arrangement

Re-export the UI crate so applications can depend on a single crate. Trait implemented by arrangement strategies that distribute children on an axis.

BoxScope

Re-export the UI crate so applications can depend on a single crate. Marker trait matching Jetpack Compose’s BoxScope API.

BoxWithConstraintsScope

Re-export the UI crate so applications can depend on a single crate. Scope exposed to [BoxWithConstraints] content.

HttpClient

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate.

LayoutEngine

Re-export the UI crate so applications can depend on a single crate. Extension trait that equips MemoryApplier with layout computation.

Measurable

Re-export the UI crate so applications can depend on a single crate. Object capable of measuring a layout child and exposing intrinsic sizes.

Placeable

Re-export the UI crate so applications can depend on a single crate. Result of running a measurement pass for a single child.

SubcomposeLayoutScope

Re-export the UI crate so applications can depend on a single crate. Base trait for measurement scopes.

SubcomposeMeasureScope

Re-export the UI crate so applications can depend on a single crate. Public trait exposed to measure policies for subcomposition.

TextMeasurer

Re-export the UI crate so applications can depend on a single crate.

UriHandler

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate.

Functions

BasicText

Re-export the UI crate so applications can depend on a single crate. High-level element that displays text.

BasicTextField

Re-export the UI crate so applications can depend on a single crate.

BitmapPainter

Re-export the UI crate so applications can depend on a single crate.

Box

Re-export the UI crate so applications can depend on a single crate. A layout composable that stacks its children on top of each other.

BoxWithConstraints

Re-export the UI crate so applications can depend on a single crate.

Button

Re-export the UI crate so applications can depend on a single crate. A clickable button with a background and content.

Canvas

Re-export the UI crate so applications can depend on a single crate. A composable that draws custom content using a DrawScope.

ClickableText

Re-export the UI crate so applications can depend on a single crate. Displays an AnnotatedString and calls on_click with the byte offset of the character under the pointer at the time of the click.

Column

Re-export the UI crate so applications can depend on a single crate. A layout composable that places its children in a vertical sequence.

ForEach

Re-export the UI crate so applications can depend on a single crate.

Image

Re-export the UI crate so applications can depend on a single crate.

Layout

Re-export the UI crate so applications can depend on a single crate.

LazyColumn

Re-export the UI crate so applications can depend on a single crate. A vertically scrolling list that only composes visible items.

LazyRow

Re-export the UI crate so applications can depend on a single crate. A horizontally scrolling list that only composes visible items.

LinkedText

Re-export the UI crate so applications can depend on a single crate. Renders an AnnotatedString and automatically dispatches link clicks:

ProvideUriHandler

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate.

Row

Re-export the UI crate so applications can depend on a single crate. A layout composable that places its children in a horizontal sequence.

Spacer

Re-export the UI crate so applications can depend on a single crate. A component that represents an empty space.

SubcomposeLayout

Re-export the UI crate so applications can depend on a single crate.

Text

Re-export the UI crate so applications can depend on a single crate.

active_focus_target

Re-export the UI crate so applications can depend on a single crate. Returns the currently active focus target, if any.

clear_focus_invalidations

Re-export the UI crate so applications can depend on a single crate. Clears all pending focus invalidations without processing them.

clear_pointer_repasses

Re-export the UI crate so applications can depend on a single crate. Clears all pending pointer repasses without processing them.

collect_modifier_slices

Re-export the UI crate so applications can depend on a single crate. Collects modifier node slices directly from a reconciled ModifierNodeChain.

collect_slices_from_modifier

Re-export the UI crate so applications can depend on a single crate. Collects modifier node slices by instantiating a temporary node chain from a Modifier.

current_density

Re-export the UI crate so applications can depend on a single crate. Returns the current density scale factor (logical px per dp).

current_fps

FPS monitoring API - use these to track frame rate for performance optimization.

default_http_client

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate.

default_uri_handler

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate.

execute_draw_commands

Re-export the UI crate so applications can depend on a single crate.

format_layout_tree

Re-export the UI crate so applications can depend on a single crate. Returns a formatted string representation of the layout tree

format_modifier_chain

Re-export the UI crate so applications can depend on a single crate. Formats the modifier chain using inspector data.

format_render_scene

Re-export the UI crate so applications can depend on a single crate. Returns a formatted string representation of the render scene

fps_display

FPS monitoring API - use these to track frame rate for performance optimization.

fps_display_detailed

FPS monitoring API - use these to track frame rate for performance optimization.

fps_stats

FPS monitoring API - use these to track frame rate for performance optimization.

get_cursor_x_for_offset

Re-export the UI crate so applications can depend on a single crate.

get_offset_for_position

Re-export the UI crate so applications can depend on a single crate.

has_focused_field

Re-export the UI crate so applications can depend on a single crate. Returns true if any text field currently has focus. Checks weak ref liveness and clears stale focus state.

has_pending_draw_repasses

Re-export the UI crate so applications can depend on a single crate. Returns true if any draw repasses are pending.

has_pending_focus_invalidations

Re-export the UI crate so applications can depend on a single crate. Returns true if any focus invalidations are pending.

has_pending_layout_repasses

Re-export the UI crate so applications can depend on a single crate. Returns true if any layout repasses are pending.

has_pending_pointer_repasses

Re-export the UI crate so applications can depend on a single crate. Returns true if any pointer repasses are pending.

install_modifier_chain_trace

Re-export the UI crate so applications can depend on a single crate. Installs a callback that receives modifier chain snapshots when debugging is enabled.

is_cursor_visible

Re-export the UI crate so applications can depend on a single crate. Returns whether the cursor should be visible right now.

layout_text

Re-export the UI crate so applications can depend on a single crate.

local_http_client

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate.

local_uri_handler

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate.

log_layout_tree

Re-export the UI crate so applications can depend on a single crate. Logs the current layout tree to stdout with indentation showing hierarchy

log_modifier_chain

Re-export the UI crate so applications can depend on a single crate. Logs the contents of a modifier node chain including capabilities.

log_render_scene

Re-export the UI crate so applications can depend on a single crate. Logs the current render scene to stdout showing all draw operations

log_screen_summary

Re-export the UI crate so applications can depend on a single crate. Logs a compact summary of what’s on screen (counts by type)

measure_layout

Re-export the UI crate so applications can depend on a single crate. Runs the measure phase for the subtree rooted at root.

measure_text

Re-export the UI crate so applications can depend on a single crate.

measure_text_with_options

Re-export the UI crate so applications can depend on a single crate.

mutableStateOf

Core runtime helpers commonly used by applications. Creates a new MutableState initialized with the given value.

next_cursor_blink_time

Re-export the UI crate so applications can depend on a single crate. Returns the next cursor blink transition time, if any. Use this for WaitUntil scheduling in the event loop.

peek_focus_invalidation

Re-export the UI crate so applications can depend on a single crate. Returns true if a focus invalidation is pending without clearing it.

peek_layout_invalidation

Re-export the UI crate so applications can depend on a single crate. Returns true if a layout invalidation is pending without clearing it.

peek_pointer_invalidation

Re-export the UI crate so applications can depend on a single crate. Returns true if a pointer invalidation is pending without clearing it.

peek_render_invalidation

Re-export the UI crate so applications can depend on a single crate. Returns true if a render invalidation is pending without clearing it.

prepare_text_layout

Re-export the UI crate so applications can depend on a single crate.

process_focus_invalidations

Re-export the UI crate so applications can depend on a single crate. Processes all pending focus invalidations.

process_pointer_repasses

Re-export the UI crate so applications can depend on a single crate. Processes all pending pointer repasses.

remember

Core runtime helpers commonly used by applications.

rememberUpdatedState

Core runtime helpers commonly used by applications. Returns a MutableState that always holds the latest value.

request_focus_invalidation

Re-export the UI crate so applications can depend on a single crate. Requests a focus recomposition without affecting layout/draw dirties.

request_layout_invalidation

Re-export the UI crate so applications can depend on a single crate. Requests a global layout re-run.

request_pointer_invalidation

Re-export the UI crate so applications can depend on a single crate. Requests a new pointer-input pass without touching layout or draw dirties.

request_render_invalidation

Re-export the UI crate so applications can depend on a single crate. Requests that the renderer rebuild the current scene.

reset_cursor_blink

Re-export the UI crate so applications can depend on a single crate. Resets cursor to visible and restarts the blink timer. Call this on any input (key press, paste) so cursor stays visible while typing.

run_test_composition

Re-export the UI crate so applications can depend on a single crate. Build a composition with a simple in-memory applier and run the provided closure once.

schedule_draw_repass

Re-export the UI crate so applications can depend on a single crate. Schedules a draw-only repass for a specific node.

schedule_focus_invalidation

Re-export the UI crate so applications can depend on a single crate. Schedules a focus invalidation for the specified node.

schedule_layout_repass

Re-export the UI crate so applications can depend on a single crate. Schedules a layout repass for a specific node.

schedule_pointer_repass

Re-export the UI crate so applications can depend on a single crate. Schedules a pointer repass for the specified node.

set_active_focus_target

Re-export the UI crate so applications can depend on a single crate. Sets the currently active focus target.

set_density

Re-export the UI crate so applications can depend on a single crate. Updates the current density scale factor.

set_text_measurer

Re-export the UI crate so applications can depend on a single crate.

start_cursor_blink

Re-export the UI crate so applications can depend on a single crate. Starts the global cursor blink animation. Called when a text field gains focus.

stop_cursor_blink

Re-export the UI crate so applications can depend on a single crate. Stops the global cursor blink animation. Called when no text field is focused.

take_draw_repass_nodes

Re-export the UI crate so applications can depend on a single crate. Takes all pending draw repass node IDs.

take_focus_invalidation

Re-export the UI crate so applications can depend on a single crate. Returns true if a focus invalidation was pending and clears the flag.

take_layout_invalidation

Re-export the UI crate so applications can depend on a single crate. Returns true if a layout invalidation was pending and clears the flag.

take_layout_repass_nodes

Re-export the UI crate so applications can depend on a single crate. Takes all pending layout repass node IDs.

take_pointer_invalidation

Re-export the UI crate so applications can depend on a single crate. Returns true if a pointer invalidation was pending and clears the flag.

take_render_invalidation

Re-export the UI crate so applications can depend on a single crate. Returns true if a render invalidation was pending and clears the flag.

tick_cursor_blink

Re-export the UI crate so applications can depend on a single crate. Advances the cursor blink state if needed. Returns true if a redraw is needed.

tree_needs_layout

Re-export the UI crate so applications can depend on a single crate. Check if a node or any of its descendants needs measure (selective measure optimization). This can be used by the app shell to skip layout when the tree is clean.

useState

Core runtime helpers commonly used by applications. A composable hook that creates and remembers a MutableState.

Type Aliases

HttpClientRef

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate.

HttpFuture

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate.

Key

Re-export the UI crate so applications can depend on a single crate.

TestComposition

Re-export the UI crate so applications can depend on a single crate. Convenience alias used in examples and tests.

UriHandlerRef

Re-export framework services (HTTP, URI, etc.) from the dedicated services crate.

Attribute Macros

composable

Re-export the UI crate so applications can depend on a single crate.