Module webrender_api::display_item

Macros

• impl_default_for_enums 🔒

Structs

• BackdropFilterDisplayItem
  Renders a filtered region of its backdrop
• BlendPrimitive
• BlurPrimitive
• BorderDisplayItem
• BorderRadius
• BorderSide
• BoxShadowDisplayItem
• ClearRectangleDisplayItem
  Clears all colors from the area, making it possible to cut holes in the window. (useful for things like the macos frosted-glass effect).
• ClipChainId
• ClipChainItem
  Just an abstraction for bundling up a bunch of clips into a “super clip”.
• ClipId
  A reference to a clipping node defining how an item is clipped.
• ColorMatrixPrimitive
  cbindgen:derive-eq=false
• CommonItemProperties
  A grouping of fields a lot of display items need, just to avoid repeating these over and over in this file.
• ComplexClipRegion
• ComponentTransferPrimitive
• CompositePrimitive
• ConicGradient
• ConicGradientDisplayItem
• DropShadowPrimitive
• ExternalScrollId
  An external identifier that uniquely identifies a scroll frame independent of its ClipId, which may change from frame to frame. This should be unique within a pipeline. WebRender makes no attempt to ensure uniqueness. The zero value is reserved for use by the root scroll node of every pipeline, which always has an external id.
• FilterData
• FilterPrimitive
  SVG Filter Primitive. See: https://github.com/eqrion/cbindgen/issues/9 cbindgen:derive-eq=false
• FloodPrimitive
• Gradient
• GradientDisplayItem
  The area
• GradientStop
• HitTestDisplayItem
  A minimal hit-testable item for the parent browser’s convenience, and is slimmer than a RectangleDisplayItem (no color). The existence of this as a distinct item also makes it easier to inspect/debug display items.
• IdentityPrimitive
• IframeDisplayItem
• ImageDisplayItem
  This describes an image that fills the specified area. It stretches or shrinks the image as necessary. While RepeatingImageDisplayItem could otherwise provide a superset of the functionality, it has been problematic inferring the desired repetition properties when snapping changes the size of the primitive.
• ImageMask
• ImageMaskClipDisplayItem
• LineDisplayItem
• NinePatchBorder
• NormalBorder
• OffsetPrimitive
• OpacityPrimitive
• PrimitiveFlags
• PushShadowDisplayItem
• PushStackingContextDisplayItem
• RadialGradient
• RadialGradientDisplayItem
• RectClipDisplayItem
• RectangleDisplayItem
  A solid or an animating color to draw (may not actually be a rectangle due to complex clips)
• ReferenceFrame
• ReferenceFrameDescriptor
• ReferenceFrameDisplayListItem
• RepeatingImageDisplayItem
  This describes a background-image and its tiling. It repeats in a grid to fill the specified area.
• RoundedRectClipDisplayItem
• ScrollFrameDescriptor
• Shadow
• SpaceAndClipInfo
  Per-primitive information about the nodes in the clip tree and the spatial tree that the primitive belongs to.
• SpatialId
  A reference to a spatial node defining item positioning.
• SpatialTreeItemKey
  Defines a caller provided key that is unique for a given spatial node, and is stable across display lists. WR uses this to determine which spatial nodes are added / removed for a new display list. The content itself is arbitrary and opaque to WR, the only thing that matters is that it’s unique and stable between display lists.
• StackingContext
• StackingContextFlags
• StickyFrameDescriptor
• StickyOffsetBounds
  The minimum and maximum allowable offset for a sticky frame in a single dimension.
• TextDisplayItem
• YuvImageDisplayItem

Enums

• AlphaType
• BorderDetails
• BorderRadiusKind
• BorderStyle
• BoxShadowClipMode
• ClipMode
• ColorRange
• ColorSpace
• ComponentTransferFuncType
• CompositeOperator
  Available composite operoations for the composite filter primitive
• DebugDisplayItem
  This is a “complete” version of the DisplayItem, with all implicit trailing arrays included, for debug serialization (captures).
• DisplayItem
• ExtendMode
• FillRule
• FilterOp
  CSS filter.
• FilterPrimitiveInput
  An input to a SVG filter primitive.
• FilterPrimitiveKind
  See: https://github.com/eqrion/cbindgen/issues/9 cbindgen:derive-eq=false
• ImageRendering
• LineOrientation
• LineStyle
• MixBlendMode
• NinePatchBorderSource
• RasterSpace
  Configure whether the contents of a stacking context should be rasterized in local space or screen space. Local space rasterized pictures are typically used when we want to cache the output, and performance is important. Note that this is a performance hint only, which WR may choose to ignore.
• ReferenceFrameKind
• ReferenceTransformBinding
• RepeatMode
• Rotation
• SpatialTreeItem
• TransformStyle
• YuvColorSpace
• YuvData
• YuvFormat
• YuvRangedColorSpace

Constants

• POLYGON_CLIP_VERTEX_MAX
• ROOT_CLIP_ID 🔒
• ROOT_REFERENCE_FRAME_SPATIAL_ID 🔒
• ROOT_SCROLL_NODE_SPATIAL_ID 🔒

Functions

• sanitize_func_type 🔒
• sanitize_values 🔒

Type Aliases

• ItemKey
  An identifier used to refer to previously sent display items. Currently it refers to individual display items, but this may change later.
• ItemTag
  A tag that can be used to identify items during hit testing. If the tag is missing then the item doesn’t take part in hit testing at all. This is composed of two numbers. In Servo, the first is an identifier while the second is used to select the cursor that should be used during mouse movement. In Gecko, the first is a scrollframe identifier, while the second is used to store various flags that APZ needs to properly process input events.