Files
8bitMyGoUI/overlay/notification.go
T
ZacharyZhang-NY 5c3c883b7d Add overlay components 176-195; pixel Harbor and Kit.Cue
Dialogs on DialogBase with focusable panels that harbor parked focus,
popovers on PopoverBase, bubbles, drawers, sheets, a lightbox, an RPG
dialogue box, notifications, a pause menu and a dithered title card.
Kit.Cue moves from feedback to pixel.
2026-10-11 23:11:46 -04:00

114 lines
3.1 KiB
Go
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package overlay
import (
"log/slog"
"time"
"github.com/egoist/mygo/ui"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/icon"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/input"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/text"
)
// Notification is a card in the queue Notifications shows.
type Notification struct {
Icon *pixel.Sprite
Title, Text string
// For is how long it shows; zero means five seconds.
For time.Duration
// id and shown are set as it first shows.
id uint64
shown time.Time
}
type NotificationsOptions struct {
// Width is each card's in dots; zero means 180.
Width int
Disabled bool
}
type NotificationsResult struct {
// Element holds the cards on screen.
Element *ui.Element
// Dismissed is the card × closed this frame, or nil.
Dismissed *Notification
}
type notesKey struct{}
// Notifications stacks timed cards at the top right; × dismisses.
func Notifications(c *ui.Context, queue *[]Notification, o NotificationsOptions) NotificationsResult {
k := pixel.K(c)
w := pixel.Or("Notifications Width", o.Width, 180)
now := k.Now()
kept := (*queue)[:0]
for _, n := range *queue {
if n.For < 0 {
panic("overlay: Notification For is negative")
}
life := n.For
if life == 0 {
life = 5 * time.Second
}
if n.shown.IsZero() || now.Sub(n.shown) < life {
kept = append(kept, n)
}
}
*queue = kept
shown := min(4, len(*queue))
last := ui.Local(c.Root(), notesKey{}, func() uint64 { return 0 })
for i := range shown {
if (*queue)[i].id == 0 {
*last++
(*queue)[i].id, (*queue)[i].shown = *last, now
}
}
if shown > 0 {
k.Tick(c, 4)
}
var res NotificationsResult
ui.Overlay(c, func() {
res.Element = ui.Column(c).Absolute().Right(k.D(8)).Top(k.D(8)).Width(k.D(w)).Gap(k.D(4)).AlignItems(ui.Stretch).Children(func() {
for i := range shown {
n := (*queue)[i]
ui.Row(c).Key(n.id).Padding(k.D(5), k.D(6)).Gap(k.D(6)).Role(ui.RoleStatus).Label(n.Title).Description(n.Text).Draw(func(p *ui.Painter, r ui.Rect) {
g := k.Canvas(p, r)
g.Frame(0, 0, g.W, g.H, pixel.Window, pixel.Face)
}).Children(func() {
art := n.Icon
if art == nil {
art = icon.Bell
}
ui.Box(c).Size(k.D(art.W), k.D(art.H)).Shrink(0).Draw(func(p *ui.Painter, r ui.Rect) {
k.Canvas(p, r).Sprite(0, 0, art, 0, pixel.Accent, 1)
})
ui.Column(c).Grow(1).Children(func() {
pixel.Text(c, n.Title, pixel.TextOptions{})
text.Paragraph(c, n.Text, text.ParagraphOptions{Slot: pixel.Faint})
})
if input.IconButton(c, icon.Close, k.Msg("close"), input.IconButtonOptions{Size: input.Small, Variant: input.Ghost, Disabled: o.Disabled}).Clicked {
res.Dismissed = &n
}
})
}
})
})
if res.Dismissed != nil {
*queue = dropNote(*queue, res.Dismissed.id)
slog.Debug("8bit: notification dismissed", "title", res.Dismissed.Title)
}
return res
}
// dropNote removes the card with id from q.
func dropNote(q []Notification, id uint64) []Notification {
for i := range q {
if q[i].id == id {
return append(q[:i], q[i+1:]...)
}
}
return q
}