82 lines
2.1 KiB
Go
82 lines
2.1 KiB
Go
package display
|
|
|
|
import (
|
|
"fmt"
|
|
"log/slog"
|
|
"net/url"
|
|
|
|
"github.com/egoist/mygo/ui"
|
|
|
|
"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/core"
|
|
"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/internal"
|
|
"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/theme"
|
|
)
|
|
|
|
// LinkOptions configure a Link; empty URL means in-app action.
|
|
type LinkOptions struct {
|
|
// URL opens in the browser; paths go to the router.
|
|
URL string
|
|
// Error is the caller's open failure, shown below the link.
|
|
Error string
|
|
}
|
|
|
|
// Link is underlined text; malformed URLs show an error instead.
|
|
func Link(c *ui.Context, label string, opts LinkOptions) *ui.Element {
|
|
if label == "" {
|
|
panic("mujica: Link needs a label")
|
|
}
|
|
k := core.Tokens(c)
|
|
u := core.Density(c).Unit()
|
|
external := false
|
|
problem := opts.Error
|
|
target := opts.URL
|
|
if opts.URL != "" {
|
|
ok := false
|
|
external, ok = linkCheck(opts.URL)
|
|
if !ok {
|
|
external, target = false, ""
|
|
if problem == "" {
|
|
problem = fmt.Sprintf(core.Msg(c, "link.invalid"), opts.URL)
|
|
}
|
|
}
|
|
}
|
|
var l *ui.Element
|
|
ui.Column(c).Gap(u).AlignItems(ui.Start).Children(func() {
|
|
ui.Row(c).Gap(u).AlignItems(ui.Center).Children(func() {
|
|
l = ui.Link(c, label, target).Underline().DecorationThickness(1)
|
|
internal.Ring(l, k.Focus, theme.ControlRadius)
|
|
color := k.AccentText
|
|
if l.Pressed() || l.Hovered() {
|
|
color = k.Text
|
|
}
|
|
l.TextColor(color).DecorationColor(color)
|
|
if external {
|
|
Icon(c, "external-link", IconOptions{Size: 12, Tone: IconAccent})
|
|
}
|
|
})
|
|
if problem != "" {
|
|
l.Error(problem)
|
|
ui.Text(c, problem).TextColor(k.Danger).FontSize(core.FontSize(c, theme.CaptionSize))
|
|
}
|
|
})
|
|
if l.Clicked() {
|
|
slog.Debug("mujica: link activate", "url", opts.URL, "opened", target != "")
|
|
}
|
|
return l
|
|
}
|
|
|
|
// linkCheck reports whether raw has a scheme and is openable.
|
|
func linkCheck(raw string) (external, ok bool) {
|
|
p, err := url.Parse(raw)
|
|
if err != nil {
|
|
return false, false
|
|
}
|
|
switch p.Scheme {
|
|
case "":
|
|
return false, p.Path != "" || p.RawQuery != ""
|
|
case "http", "https":
|
|
return true, p.Host != ""
|
|
}
|
|
return true, p.Opaque != "" || p.Host != "" || p.Path != ""
|
|
}
|