ZacharyZhang-NYandClaude Opus 5.5
03e1f91706
Elements are now pass-scoped value handles: tests that read bounds after a frame bind a ui.Handle. pixel tells frames apart by the build pass's root, since the Tester clock no longer moves on its own. Fix the regressions the upgrade brought: - Clipboard reads in input handlers go through c.Services(). - MyGo notes an overlay's opener after building it, so AutoFocus inside lost it; pixel.AutoFocus focuses through a Handle, and archtest bans the raw call. Dialogs hand the focus back again. - Elements around a press stay hovered: Tooltip tells a press-given focus by focus arriving under the pointer. - The web host moves the Tester clock with real time, at most 500 ms a call, and gives components the real clock. The gallery's source index also accepts CRLF checkouts. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
80 lines
2.5 KiB
Go
80 lines
2.5 KiB
Go
package shop
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import (
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"fmt"
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"log/slog"
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"math"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/icon"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/input"
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"git.zacharyzhang.com/ZacharyZhang-NY/8bitMyGoUI/pixel"
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)
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// CartLine is a ware in the cart and how many.
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type CartLine struct {
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// Name is unique in the cart; it keys the row.
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Name string
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Price int
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Qty int
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}
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type CartOptions struct {
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Currency Currency
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// Width is in dots; zero means 260.
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Width int
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Disabled bool
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}
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type CartResult struct {
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Element ui.Element
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Changed bool
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// Removed is the line whose ✕ was pressed, else -1.
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Removed int
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}
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// Cart lists lines with quantities and their total.
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func Cart(c *ui.Context, text string, lines []CartLine, o CartOptions) CartResult {
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k := pixel.K(c)
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names, total := map[string]bool{}, 0
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for _, l := range lines {
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amount("Cart price", l.Price)
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// Checked against what is left, so totals cannot overflow.
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if l.Name == "" || names[l.Name] || l.Qty < 1 || l.Qty > 99 || l.Qty > 0 && l.Price > (math.MaxInt-total)/l.Qty {
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panic(fmt.Sprintf("shop: Cart line %q, twice %v, %d at %d", l.Name, names[l.Name], l.Qty, l.Price))
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}
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names[l.Name], total = true, total+l.Price*l.Qty
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}
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res := CartResult{Removed: -1}
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res.Element = ui.Column(c).Width(k.D(pixel.Or("Cart Width", o.Width, 260))).Gap(k.D(3)).Role(ui.RoleList).Label(text).Children(func() {
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for i := range lines {
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l := &lines[i]
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ui.Row(c).Key(l.Name).FillWidth().Gap(k.D(4)).AlignItems(ui.Center).Role(ui.RoleListItem).Children(func() {
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pixel.Text(c, l.Name, pixel.TextOptions{Wrap: true, MaxLines: 1}).Grow(1)
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// A raise may not carry the total past an int.
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most := 99
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if l.Price > 0 {
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most = min(99, (math.MaxInt-(total-l.Price*l.Qty))/l.Price)
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}
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res.Changed = Quantity(c, l.Name, &l.Qty, QuantityOptions{Min: 1, Max: most, Disabled: o.Disabled}).Changed || res.Changed
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money(c, k, o.Currency, l.Price*l.Qty, pixel.Ink)
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if input.IconButton(c, icon.Close, k.Msg("remove")+" "+l.Name, input.IconButtonOptions{Size: input.Small, Disabled: o.Disabled}).Clicked {
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res.Removed = i
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}
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})
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}
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if len(lines) == 0 {
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pixel.Text(c, k.Msg("empty"), pixel.TextOptions{Slot: pixel.Faint})
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}
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ui.Row(c).FillWidth().Gap(k.D(4)).Children(func() {
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pixel.Text(c, k.Msg("total"), pixel.TextOptions{}).Grow(1)
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money(c, k, o.Currency, total, pixel.Accent)
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})
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})
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if res.Removed >= 0 {
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slog.Debug("8bit: cart remove", "label", text, "line", res.Removed)
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}
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return res
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}
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