Struct script_traits::compositor::CompositorDisplayListInfo

pub struct CompositorDisplayListInfo {
    pub pipeline_id: PipelineId,
    pub viewport_size: LayoutSize,
    pub epoch: Epoch,
    pub hit_test_info: Vec<HitTestInfo>,
    pub scroll_tree: ScrollTree,
    pub root_reference_frame_id: ScrollTreeNodeId,
    pub root_scroll_node_id: ScrollTreeNodeId,
}

A data structure which stores compositor-side information about display lists sent to the compositor.

Fields

pipeline_id: PipelineId

The WebRender PipelineId of this display list.

viewport_size: LayoutSize

The size of the viewport that this display list renders into.

epoch: Epoch

The epoch of the display list.

hit_test_info: Vec<HitTestInfo>

An array of HitTestInfo which is used to store information to assist the compositor to take various actions (set the cursor, scroll without layout) using a WebRender hit test result.

scroll_tree: ScrollTree

A ScrollTree used by the compositor to scroll the contents of the display list.

root_reference_frame_id: ScrollTreeNodeId

The ScrollTreeNodeId of the root reference frame of this info’s scroll tree.

root_scroll_node_id: ScrollTreeNodeId

The ScrollTreeNodeId of the topmost scrolling frame of this info’s scroll tree.

Implementations

impl CompositorDisplayListInfo

pub fn new(
    viewport_size: LayoutSize,
    content_size: LayoutSize,
    pipeline_id: PipelineId,
    epoch: Epoch
) -> Self

Create a new CompositorDisplayListInfo with the root reference frame and scroll frame already added to the scroll tree.

pub fn add_hit_test_info(
    &mut self,
    node: u64,
    cursor: Option<Cursor>,
    scroll_tree_node: ScrollTreeNodeId
) -> usize

Add or re-use a duplicate HitTestInfo entry in this CompositorHitTestInfo and return the index.

Trait Implementations

impl Debug for CompositorDisplayListInfo

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CompositorDisplayListInfo

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
    __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for CompositorDisplayListInfo

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where
    __S: Serializer,

Serialize this value into the given Serde serializer.