Struct layout_2013::display_list::builder::DisplayListBuildState

pub struct DisplayListBuildState<'a> {
    pub layout_context: &'a LayoutContext<'a>,
    pub root_stacking_context: StackingContext,
    stacking_context_info: FnvHashMap<StackingContextId, StackingContextInfo>,
    pub clip_scroll_nodes: Vec<ClipScrollNode>,
    pub items: FnvHashMap<StackingContextId, Vec<DisplayItem>>,
    pub processing_scrolling_overflow_element: bool,
    pub current_stacking_context_id: StackingContextId,
    pub current_clipping_and_scrolling: ClippingAndScrolling,
    pub iframe_sizes: FnvHashMap<BrowsingContextId, Size2D<f32, CSSPixel>>,
    pub indexable_text: IndexableText,
}

Fields

layout_context: &'a LayoutContext<'a>

A LayoutContext reference important for creating WebRender images.

root_stacking_context: StackingContext

The root of the StackingContext tree.

stacking_context_info: FnvHashMap<StackingContextId, StackingContextInfo>

StackingContext and ClipScrollNode children for each StackingContext.

clip_scroll_nodes: Vec<ClipScrollNode>

A vector of ClipScrollNodes which will be given ids during WebRender DL conversion.

items: FnvHashMap<StackingContextId, Vec<DisplayItem>>

The items in this display list.

processing_scrolling_overflow_element: bool

Whether or not we are processing an element that establishes scrolling overflow. Used to determine what ClipScrollNode to place backgrounds and borders into.

current_stacking_context_id: StackingContextId

The current stacking context id, used to keep track of state when building. recursively building and processing the display list.

current_clipping_and_scrolling: ClippingAndScrolling

The current clip and scroll info, used to keep track of state when recursively building and processing the display list.

iframe_sizes: FnvHashMap<BrowsingContextId, Size2D<f32, CSSPixel>>

Vector containing iframe sizes, used to inform the constellation about new iframe sizes

indexable_text: IndexableText

Stores text runs to answer text queries used to place a cursor inside text.

Implementations

impl<'a> DisplayListBuildState<'a>

pub fn new( layout_context: &'a LayoutContext<'_>, state: StackingContextCollectionState, ) -> DisplayListBuildState<'a>

pub fn add_display_item(&mut self, display_item: DisplayItem)

fn add_image_item(&mut self, base: BaseDisplayItem, item: ImageDisplayItem)

fn parent_clip_scroll_node_index( &self, index: ClipScrollNodeIndex, ) -> ClipScrollNodeIndex

fn is_background_or_border_of_clip_scroll_node( &self, section: DisplayListSection, ) -> bool

pub fn create_base_display_item( &self, clip_rect: Rect<Au>, node: OpaqueNode, unique_id: u64, cursor: Option<Cursor>, section: DisplayListSection, ) -> BaseDisplayItem

fn create_base_display_item_with_clipping_and_scrolling( &self, clip_rect: Rect<Au>, node: OpaqueNode, unique_id: u64, cursor: Option<Cursor>, section: DisplayListSection, clipping_and_scrolling: ClippingAndScrolling, ) -> BaseDisplayItem

fn add_late_clip_node( &mut self, rect: LayoutRect, radii: BorderRadius, ) -> ClipScrollNodeIndex

pub fn to_display_list(self) -> DisplayList

fn move_to_display_list_for_stacking_context( &mut self, list: &mut Vec<DisplayItem>, stacking_context: StackingContext, )

fn move_to_display_list_for_items( &mut self, list: &mut Vec<DisplayItem>, child_items: Vec<DisplayItem>, child_stacking_contexts: Vec<StackingContext>, )

fn clipping_and_scrolling_scope<R, F: FnOnce(&mut Self) -> R>( &mut self, function: F, ) -> R