84 lines
2.2 KiB
Go
84 lines
2.2 KiB
Go
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 selectable memu item.
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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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box.label.SetAttr(tomo.AAlign(tomo.AlignStart, tomo.AlignMiddle))
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box.SetAttr(tomo.ALayout(layouts.Row { false, true }))
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box.Add(box.icon)
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box.Add(box.label)
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box.SetInputMask(true)
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box.OnButtonDown(box.handleButtonDown)
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box.OnButtonUp(box.handleButtonUp)
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box.OnKeyDown(box.handleKeyDown)
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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) handleKeyDown (key input.Key, numberPad bool) bool {
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if key != input.KeyEnter && key != input.Key(' ') { return false }
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return true
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}
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func (this *MenuItem) handleKeyUp (key input.Key, numberPad bool) bool {
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if key != input.KeyEnter && key != input.Key(' ') { return false }
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this.on.click.Broadcast()
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return true
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}
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func (this *MenuItem) handleButtonDown (button input.Button) bool {
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if button != input.ButtonLeft { return false }
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return true
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}
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func (this *MenuItem) handleButtonUp (button input.Button) bool {
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if button != input.ButtonLeft { return false }
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if this.Window().MousePosition().In(this.Bounds()) {
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this.on.click.Broadcast()
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}
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return true
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}
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