112 lines
3.1 KiB
Go
112 lines
3.1 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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var _ tomo.Object = new(MenuItem)
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// MenuItem is a selectable memu item.
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type MenuItem struct {
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box 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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return NewIconMenuItem(tomo.IconUnknown, text)
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}
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// NewIconMenuItem creates a new menu item with the specified icon and text.
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func NewIconMenuItem (icon tomo.Icon, text string) *MenuItem {
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menuItem := &MenuItem {
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box: tomo.NewContainerBox(),
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label: NewLabel(text),
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icon: NewIcon(icon, tomo.IconSizeSmall),
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}
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menuItem.box.SetRole(tomo.R("objects", "MenuItem"))
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menuItem.label.SetAlign(tomo.AlignStart, tomo.AlignMiddle)
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menuItem.box.SetAttr(tomo.ALayout(layouts.Row { false, true }))
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menuItem.box.Add(menuItem.icon)
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menuItem.box.Add(menuItem.label)
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menuItem.box.SetInputMask(true)
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menuItem.box.OnMouseEnter(menuItem.handleMouseEnter)
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menuItem.box.OnMouseLeave(menuItem.handleMouseLeave)
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menuItem.box.OnButtonDown(menuItem.handleButtonDown)
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menuItem.box.OnButtonUp(menuItem.handleButtonUp)
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menuItem.box.OnKeyDown(menuItem.handleKeyDown)
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menuItem.box.OnKeyUp(menuItem.handleKeyUp)
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menuItem.box.SetFocusable(true)
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return menuItem
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}
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// GetBox returns the underlying box.
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func (this *MenuItem) GetBox () tomo.Box {
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return this.box
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}
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// SetFocused sets whether or not this menu item has keyboard focus. If set to
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// true, this method will steal focus away from whichever object currently has
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// focus.
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func (this *MenuItem) SetFocused (focused bool) {
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this.box.SetFocused(focused)
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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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this.icon.SetIcon(id, tomo.IconSizeSmall)
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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) handleMouseEnter () {
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this.SetFocused(true)
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}
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func (this *MenuItem) handleMouseLeave () {
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this.SetFocused(false)
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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.box.Window().MousePosition().In(this.box.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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