Enum layout_2020::fragment_tree::fragment::Fragment

pub(crate) enum Fragment {
    Box(BoxFragment),
    Float(BoxFragment),
    Positioning(PositioningFragment),
    AbsoluteOrFixedPositioned(ArcRefCell<HoistedSharedFragment>),
    Text(TextFragment),
    Image(ImageFragment),
    IFrame(IFrameFragment),
}

Variants

Box(BoxFragment)

Float(BoxFragment)

Floating content. A floated fragment is very similar to a normal BoxFragment but it isn’t positioned using normal in block flow positioning rules (margin collapse, etc). Instead, they are laid out by the crate::flow::float::SequentialLayoutState of their float containing block formatting context.

Positioning(PositioningFragment)

AbsoluteOrFixedPositioned(ArcRefCell<HoistedSharedFragment>)

Absolute and fixed position fragments are hoisted up so that they are children of the BoxFragment that establishes their containing blocks, so that they can be laid out properly. When this happens an AbsoluteOrFixedPositioned fragment is left at the original tree position. This allows these hoisted fragments to be painted with regard to their original tree order during stacking context tree / display list construction.

Text(TextFragment)

Image(ImageFragment)

IFrame(IFrameFragment)

Implementations

impl Fragment

pub(crate) fn build_stacking_context_tree( &mut self, fragment_ref: &ArcRefCell<Fragment>, display_list: &mut DisplayList, containing_block_info: &ContainingBlockManager<'_, ContainingBlock>, stacking_context: &mut StackingContext, mode: StackingContextBuildMode, )

impl Fragment

pub(crate) fn build_display_list( &self, builder: &mut DisplayListBuilder<'_>, containing_block: &PhysicalRect<Au>, section: StackingContextSection, is_hit_test_for_scrollable_overflow: bool, )

fn maybe_push_hit_test_for_style_and_tag( &self, builder: &mut DisplayListBuilder<'_>, style: &ComputedValues, tag: Option<Tag>, rect: PhysicalRect<Au>, cursor: Cursor, )

fn build_display_list_for_text_fragment( &self, fragment: &TextFragment, builder: &mut DisplayListBuilder<'_>, containing_block: &PhysicalRect<Au>, )

fn build_display_list_for_text_decoration( &self, fragment: &TextFragment, builder: &mut DisplayListBuilder<'_>, rect: &PhysicalRect<Au>, color: &AbsoluteColor, )

impl Fragment

pub fn base(&self) -> Option<&BaseFragment>

pub(crate) fn content_rect_mut(&mut self) -> Option<&mut PhysicalRect<Au>>

pub fn tag(&self) -> Option<Tag>

pub fn print(&self, tree: &mut PrintTree)

pub fn scrolling_area( &self, containing_block: &PhysicalRect<Au>, ) -> PhysicalRect<Au>

pub fn scrollable_overflow(&self) -> PhysicalRect<Au>

pub(crate) fn find<T>( &self, manager: &ContainingBlockManager<'_, PhysicalRect<Au>>, level: usize, process_func: &mut impl FnMut(&Fragment, usize, &PhysicalRect<Au>) -> Option<T>, ) -> Option<T>

Trait Implementations

impl Serialize for Fragment

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

where __S: Serializer,

Serialize this value into the given Serde serializer.