Trait runa_wayland_protocols::unstable::xdg_shell_unstable_v6::zxdg_positioner_v6::v1::RequestDispatch

pub trait RequestDispatch<Ctx> {
    type Error;
    type DestroyFut<'a>: Future<Output = Result<(), Self::Error>> + 'a
       where Ctx: 'a;
    type SetSizeFut<'a>: Future<Output = Result<(), Self::Error>> + 'a
       where Ctx: 'a;
    type SetAnchorRectFut<'a>: Future<Output = Result<(), Self::Error>> + 'a
       where Ctx: 'a;
    type SetAnchorFut<'a>: Future<Output = Result<(), Self::Error>> + 'a
       where Ctx: 'a;
    type SetGravityFut<'a>: Future<Output = Result<(), Self::Error>> + 'a
       where Ctx: 'a;
    type SetConstraintAdjustmentFut<'a>: Future<Output = Result<(), Self::Error>> + 'a
       where Ctx: 'a;
    type SetOffsetFut<'a>: Future<Output = Result<(), Self::Error>> + 'a
       where Ctx: 'a;

    // Required methods
    fn destroy<'a>(ctx: &'a mut Ctx, object_id: u32) -> Self::DestroyFut<'a>;
    fn set_size<'a>(
        ctx: &'a mut Ctx,
        object_id: u32,
        width: i32,
        height: i32
    ) -> Self::SetSizeFut<'a>;
    fn set_anchor_rect<'a>(
        ctx: &'a mut Ctx,
        object_id: u32,
        x: i32,
        y: i32,
        width: i32,
        height: i32
    ) -> Self::SetAnchorRectFut<'a>;
    fn set_anchor<'a>(
        ctx: &'a mut Ctx,
        object_id: u32,
        anchor: Anchor
    ) -> Self::SetAnchorFut<'a>;
    fn set_gravity<'a>(
        ctx: &'a mut Ctx,
        object_id: u32,
        gravity: Gravity
    ) -> Self::SetGravityFut<'a>;
    fn set_constraint_adjustment<'a>(
        ctx: &'a mut Ctx,
        object_id: u32,
        constraint_adjustment: u32
    ) -> Self::SetConstraintAdjustmentFut<'a>;
    fn set_offset<'a>(
        ctx: &'a mut Ctx,
        object_id: u32,
        x: i32,
        y: i32
    ) -> Self::SetOffsetFut<'a>;
}

Required Associated Types

type Error

type DestroyFut<'a>: Future<Output = Result<(), Self::Error>> + 'a where Ctx: 'a

Type of future returned by destroy

type SetSizeFut<'a>: Future<Output = Result<(), Self::Error>> + 'a where Ctx: 'a

Type of future returned by set_size

type SetAnchorRectFut<'a>: Future<Output = Result<(), Self::Error>> + 'a where Ctx: 'a

Type of future returned by set_anchor_rect

type SetAnchorFut<'a>: Future<Output = Result<(), Self::Error>> + 'a where Ctx: 'a

Type of future returned by set_anchor

type SetGravityFut<'a>: Future<Output = Result<(), Self::Error>> + 'a where Ctx: 'a

Type of future returned by set_gravity

type SetConstraintAdjustmentFut<'a>: Future<Output = Result<(), Self::Error>> + 'a where Ctx: 'a

Type of future returned by set_constraint_adjustment

type SetOffsetFut<'a>: Future<Output = Result<(), Self::Error>> + 'a where Ctx: 'a

Type of future returned by set_offset

Required Methods

fn destroy<'a>(ctx: &'a mut Ctx, object_id: u32) -> Self::DestroyFut<'a>

destroy the xdg_positioner object

Notify the compositor that the xdg_positioner will no longer be used.

fn set_size<'a>( ctx: &'a mut Ctx, object_id: u32, width: i32, height: i32 ) -> Self::SetSizeFut<'a>

set the size of the to-be positioned rectangle

Set the size of the surface that is to be positioned with the positioner object. The size is in surface-local coordinates and corresponds to the window geometry. See xdg_surface.set_window_geometry.

If a zero or negative size is set the invalid_input error is raised.

fn set_anchor_rect<'a>( ctx: &'a mut Ctx, object_id: u32, x: i32, y: i32, width: i32, height: i32 ) -> Self::SetAnchorRectFut<'a>

set the anchor rectangle within the parent surface

Specify the anchor rectangle within the parent surface that the child surface will be placed relative to. The rectangle is relative to the window geometry as defined by xdg_surface.set_window_geometry of the parent surface. The rectangle must be at least 1x1 large.

When the xdg_positioner object is used to position a child surface, the anchor rectangle may not extend outside the window geometry of the positioned child’s parent surface.

If a zero or negative size is set the invalid_input error is raised.

fn set_anchor<'a>( ctx: &'a mut Ctx, object_id: u32, anchor: Anchor ) -> Self::SetAnchorFut<'a>

set anchor rectangle anchor edges

Defines a set of edges for the anchor rectangle. These are used to derive an anchor point that the child surface will be positioned relative to. If two orthogonal edges are specified (e.g. ‘top’ and ‘left’), then the anchor point will be the intersection of the edges (e.g. the top left position of the rectangle); otherwise, the derived anchor point will be centered on the specified edge, or in the center of the anchor rectangle if no edge is specified.

If two parallel anchor edges are specified (e.g. ‘left’ and ‘right’), the invalid_input error is raised.

fn set_gravity<'a>( ctx: &'a mut Ctx, object_id: u32, gravity: Gravity ) -> Self::SetGravityFut<'a>

set child surface gravity

Defines in what direction a surface should be positioned, relative to the anchor point of the parent surface. If two orthogonal gravities are specified (e.g. ‘bottom’ and ‘right’), then the child surface will be placed in the specified direction; otherwise, the child surface will be centered over the anchor point on any axis that had no gravity specified.

If two parallel gravities are specified (e.g. ‘left’ and ‘right’), the invalid_input error is raised.

fn set_constraint_adjustment<'a>( ctx: &'a mut Ctx, object_id: u32, constraint_adjustment: u32 ) -> Self::SetConstraintAdjustmentFut<'a>

set the adjustment to be done when constrained

Specify how the window should be positioned if the originally intended position caused the surface to be constrained, meaning at least partially outside positioning boundaries set by the compositor. The adjustment is set by constructing a bitmask describing the adjustment to be made when the surface is constrained on that axis.

If no bit for one axis is set, the compositor will assume that the child surface should not change its position on that axis when constrained.

If more than one bit for one axis is set, the order of how adjustments are applied is specified in the corresponding adjustment descriptions.

The default adjustment is none.

fn set_offset<'a>( ctx: &'a mut Ctx, object_id: u32, x: i32, y: i32 ) -> Self::SetOffsetFut<'a>

set surface position offset

Specify the surface position offset relative to the position of the anchor on the anchor rectangle and the anchor on the surface. For example if the anchor of the anchor rectangle is at (x, y), the surface has the gravity bottom|right, and the offset is (ox, oy), the calculated surface position will be (x + ox, y + oy). The offset position of the surface is the one used for constraint testing. See set_constraint_adjustment.

An example use case is placing a popup menu on top of a user interface element, while aligning the user interface element of the parent surface with some user interface element placed somewhere in the popup surface.

Implementors