Enum Reserve 

pub enum Reserve {
    None,
    OwnExtent,
    IgnoreOthers,
}

Whether a panel keeps other windows out of its space.

Reserving is a request a window system may be unable to grant, which is different from being unable to build the panel at all: ShellCaps::PANEL_RESERVE says whether this backend can. Where it cannot — macOS, which lets nothing but the menu bar and the Dock reserve screen space — the panel is still created and simply overlaps what is behind it.

Variants

None

It reserves nothing, and keeps clear of the space other panels have reserved — a launcher placed below a bar rather than over it. Layer-shell’s exclusive zone 0.

OwnExtent

The edge it is anchored to gives up the panel’s own extent: maximised windows stop at it. A bar is this. Layer-shell’s exclusive zone equal to the panel’s extent across that edge.

The panel must name one edge: anchored to exactly one, or to one and both of the edges beside it — TOP, or TOP | LEFT | RIGHT, reserves the top. Any other anchoring has no edge to reserve, and creating it is ShellError::Unsupported on every backend; see PanelDesc::reserved_edge.

IgnoreOthers

It reserves nothing and is placed as if no other panel reserved anything — at the very edge, over other bars. Layer-shell’s exclusive zone -1.

Trait Implementations

impl Clone for Reserve

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Reserve

impl Debug for Reserve

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

Formats the value using the given formatter.

impl Default for Reserve

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Reserve

impl Hash for Reserve

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Reserve

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Reserve