3b09c07e7a
This introduces a new interface `Clickable`. I'd imagine this would be implemented for most widgets eventually and would allow for programs run in the terminal to also have their mouse events forwarded to them. For the tabs it was relatively simple to check that the position of the click is within the boxes for the tabs. For other components I'd imagine that some state representing their currently drawn bounding box would be useful.
50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
package ui
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import (
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"github.com/gdamore/tcell"
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)
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// Drawable is a UI component that can draw. Unless specified, all methods must
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// only be called from a single goroutine, the UI goroutine.
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type Drawable interface {
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// Called when this renderable should draw itself.
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Draw(ctx *Context)
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// Specifies a function to call when this cell needs to be redrawn. The
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// callback may be called in any goroutine.
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OnInvalidate(callback func(d Drawable))
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// Invalidates the drawable. This can be called from any goroutine.
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Invalidate()
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}
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type Interactive interface {
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// Returns true if the event was handled by this component
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Event(event tcell.Event) bool
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// Indicates whether or not this control will receive input events
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Focus(focus bool)
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}
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type Simulator interface {
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// Queues up the given input events for simulation
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Simulate(events []tcell.Event)
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}
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type DrawableInteractive interface {
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Drawable
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Interactive
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}
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// A drawable which contains other drawables
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type Container interface {
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Drawable
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// Return all of the drawables which are children of this one (do not
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// recurse into your grandchildren).
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Children() []Drawable
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}
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// A drawable that can be clicked
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type Clickable interface {
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Drawable
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MouseEvent(event tcell.Event)
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}
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