Noah Petherbridge
336a949ed0
* Adds global modal support in the pkg/modal/ package. It has easy Alert() and Confirm() methods to prompt the user before calling a callback function on affirmative response. * Modals have global app state: they're processed in the main loop in pkg/doodle.go similar to the global command shell. * When a modal is active, a semitransparent black frame covers the screen (gameplay loop paused, last game frame rendered below) and the modal window appears on top. * The developer console retains higher priority than the modal system and always renders on top. * Editor Mode: track when the level pixels have been modified, and confirm the user about unsaved changes when they attempt to close the level (New, Open, Close, etc.) * Global: the Escape key no longer immediately shuts down the game, but will confirm the user's intent via a modal. * File->Quit in the Editor Mode also invokes the confirm shutdown modal.
92 lines
1.6 KiB
Go
92 lines
1.6 KiB
Go
package modal
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import (
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"fmt"
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"git.kirsle.net/apps/doodle/pkg/balance"
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"git.kirsle.net/go/ui"
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)
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// Confirm pops up an Ok/Cancel modal.
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func Confirm(message string, args ...interface{}) *Modal {
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if !ready {
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panic("modal.Confirm(): not ready")
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} else if current != nil {
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return current
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}
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// Reset the supervisor.
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supervisor = ui.NewSupervisor()
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m := &Modal{
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title: "Confirm",
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message: fmt.Sprintf(message, args...),
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}
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m.window = makeConfirm(m)
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center(m.window)
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current = m
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return m
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}
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// makeConfirm creates the ui.Window for the Confirm modal.
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func makeConfirm(m *Modal) *ui.Window {
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win := ui.NewWindow("Confirm")
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_, title := win.TitleBar()
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title.TextVariable = &m.title
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msgFrame := ui.NewFrame("Confirm Message")
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win.Pack(msgFrame, ui.Pack{
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Side: ui.N,
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})
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msg := ui.NewLabel(ui.Label{
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TextVariable: &m.message,
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Font: balance.UIFont,
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})
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msgFrame.Pack(msg, ui.Pack{
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Side: ui.N,
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})
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// Ok/Cancel button bar.
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btnBar := ui.NewFrame("Button Bar")
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msgFrame.Pack(btnBar, ui.Pack{
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Side: ui.N,
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PadY: 4,
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})
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for _, btn := range []struct {
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Label string
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F func(ui.EventData) error
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}{
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{"Ok", func(ev ui.EventData) error {
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m.Dismiss(true)
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return nil
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}},
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{"Cancel", func(ev ui.EventData) error {
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m.Dismiss(false)
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return nil
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}},
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} {
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btn := btn
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button := ui.NewButton(btn.Label+"Button", ui.NewLabel(ui.Label{
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Text: btn.Label,
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Font: balance.MenuFont,
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}))
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button.Handle(ui.Click, btn.F)
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button.Compute(engine)
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supervisor.Add(button)
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btnBar.Pack(button, ui.Pack{
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Side: ui.W,
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PadX: 2,
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})
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}
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win.Compute(engine)
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win.Supervise(supervisor)
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return win
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}
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