Struct layout_2013::block::AbsoluteAssignBSizesTraversal

pub struct AbsoluteAssignBSizesTraversal<'a>(pub &'a SharedStyleContext<'a>);

The real assign-block-sizes traversal for flows with position ‘absolute’.

This is a traversal of an Absolute Flow tree.

• Relatively positioned flows and the Root flow start new Absolute flow trees.
• The kids of a flow in this tree will be the flows for which it is the absolute Containing Block.
• Thus, leaf nodes and inner non-root nodes are all Absolute Flows.

A Flow tree can have several Absolute Flow trees (depending on the number of relatively positioned flows it has).

Note that flows with position ‘fixed’ just form a flat list as they all have the Root flow as their CB.

Tuple Fields

0: &'a SharedStyleContext<'a>

Trait Implementations

impl<'a> PreorderFlowTraversal for AbsoluteAssignBSizesTraversal<'a>

fn process(&self, flow: &mut dyn Flow)

The operation to perform. Return true to continue or false to stop.

fn should_process_subtree(&self, _flow: &mut dyn Flow) -> bool

Returns true if this node should be processed and false if neither this node nor its descendants should be processed.

fn should_process(&self, _flow: &mut dyn Flow) -> bool

Returns true if this node must be processed in-order. If this returns false, we skip the operation for this node, but continue processing the descendants. This is called after parent nodes are visited.

fn traverse(&self, flow: &mut dyn Flow)

Traverses the tree in preorder.

fn traverse_absolute_flows(&self, flow: &mut dyn Flow)

Traverse the Absolute flow tree in preorder.