aerc/lib/ui/interfaces.go

67 lines
1.4 KiB
Go
Raw Permalink Normal View History

package ui
import (
"github.com/gdamore/tcell/v2"
)
// AercMsg is used to communicate within aerc
type AercMsg interface{}
// Drawable is a UI component that can draw. Unless specified, all methods must
// only be called from a single goroutine, the UI goroutine.
type Drawable interface {
// Called when this renderable should draw itself.
Draw(ctx *Context)
// Invalidates the UI. This can be called from any goroutine.
Invalidate()
}
type RootDrawable interface {
Initialize(ui *UI)
}
type Interactive interface {
// Returns true if the event was handled by this component
Event(event tcell.Event) bool
2019-03-17 19:02:33 +01:00
// Indicates whether or not this control will receive input events
Focus(focus bool)
}
type Beeper interface {
OnBeep(func() error)
}
type DrawableInteractive interface {
Drawable
Interactive
}
type DrawableInteractiveBeeper interface {
DrawableInteractive
Beeper
}
// A drawable which contains other drawables
type Container interface {
Drawable
// Return all of the drawables which are children of this one (do not
// recurse into your grandchildren).
Children() []Drawable
}
type MouseHandler interface {
// Handle a mouse event which occurred at the local x and y positions
MouseEvent(localX int, localY int, event tcell.Event)
}
// A drawable that can be interacted with by the mouse
type Mouseable interface {
Drawable
MouseHandler
}
type MouseableDrawableInteractive interface {
DrawableInteractive
MouseHandler
}