75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
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package objects
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import "git.tebibyte.media/tomo/tomo"
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import "git.tebibyte.media/tomo/tomo/input"
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import "git.tebibyte.media/tomo/tomo/event"
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import "git.tebibyte.media/tomo/objects/layouts"
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// MenuItem is a clickable button.
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type MenuItem struct {
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tomo.ContainerBox
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label *Label
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icon *Icon
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labelActive bool
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on struct {
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click event.FuncBroadcaster
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}
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}
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// NewMenuItem creates a new menu item with the specified text.
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func NewMenuItem (text string) *MenuItem {
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box := &MenuItem {
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ContainerBox: tomo.NewContainerBox(),
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label: NewLabel(text),
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icon: NewIcon("", tomo.IconSizeSmall),
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}
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box.SetRole(tomo.R("objects", "MenuItem", ""))
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tomo.Apply(box)
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box.label.SetAlign(tomo.AlignStart, tomo.AlignMiddle)
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box.SetLayout(layouts.NewGrid([]bool { false, true }, []bool { true }))
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box.Add(box.icon)
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box.Add(box.label)
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box.CaptureDND(true)
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box.CaptureMouse(true)
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box.CaptureScroll(true)
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box.CaptureKeyboard(true)
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box.OnMouseUp(box.handleMouseUp)
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box.OnKeyUp(box.handleKeyUp)
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box.SetFocusable(true)
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return box
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}
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// SetText sets the text of the items's label.
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func (this *MenuItem) SetText (text string) {
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this.label.SetText(text)
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}
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// SetIcon sets an icon for this item. Setting the icon to IconUnknown will
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// remove it.
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func (this *MenuItem) SetIcon (id tomo.Icon) {
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if this.icon != nil { this.Remove(this.icon) }
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this.Insert(NewIcon(id, tomo.IconSizeSmall), this.label)
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}
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// OnClick specifies a function to be called when the menu item is clicked.
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func (this *MenuItem) OnClick (callback func ()) event.Cookie {
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return this.on.click.Connect(callback)
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}
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func (this *MenuItem) handleKeyUp (key input.Key, numberPad bool) {
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if key != input.KeyEnter && key != input.Key(' ') { return }
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this.on.click.Broadcast()
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}
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func (this *MenuItem) handleMouseUp (button input.Button) {
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if button != input.ButtonLeft { return }
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if this.MousePosition().In(this.Bounds()) {
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this.on.click.Broadcast()
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}
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}
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