Struct layout_2013::display_list::builder::SavedStackingContextCollectionState

pub struct SavedStackingContextCollectionState {
    stacking_context_id: StackingContextId,
    real_stacking_context_id: StackingContextId,
    parent_reference_frame_id: ClipScrollNodeIndex,
    clipping_and_scrolling: ClippingAndScrolling,
    containing_block_clipping_and_scrolling: ClippingAndScrolling,
    clips_pushed: usize,
    containing_block_clips_pushed: usize,
    stacking_relative_content_box: Rect<Au>,
}

This structure manages ensuring that modification to StackingContextCollectionState is only temporary. It’s useful for moving recursively down the flow tree and ensuring that the state is restored for siblings. To use this structure, we must call SavedStackingContextCollectionState::restore in order to restore the state. TODO(mrobinson): It would be nice to use RAII here to avoid having to call restore.

Fields

stacking_context_id: StackingContextId

real_stacking_context_id: StackingContextId

parent_reference_frame_id: ClipScrollNodeIndex

clipping_and_scrolling: ClippingAndScrolling

containing_block_clipping_and_scrolling: ClippingAndScrolling

clips_pushed: usize

containing_block_clips_pushed: usize

stacking_relative_content_box: Rect<Au>

Implementations

impl SavedStackingContextCollectionState

fn new( state: &mut StackingContextCollectionState, ) -> SavedStackingContextCollectionState

fn switch_to_containing_block_clip( &mut self, state: &mut StackingContextCollectionState, )

fn restore(self, state: &mut StackingContextCollectionState)

fn push_clip( &mut self, state: &mut StackingContextCollectionState, clip: Rect<Au>, positioning: StylePosition, )