40 lines
1.1 KiB
Go
40 lines
1.1 KiB
Go
|
package html
|
||
|
|
|
||
|
|
import "strings"
|
||
|
|
|
||
|
|
// Responsive wraps multiple Layout variants for breakpoint-aware rendering.
|
||
|
|
// Each variant is rendered inside a container with data-variant for CSS targeting.
|
||
|
|
type Responsive struct {
|
||
|
|
variants []responsiveVariant
|
||
|
|
}
|
||
|
|
|
||
|
|
type responsiveVariant struct {
|
||
|
|
name string
|
||
|
|
layout *Layout
|
||
|
|
}
|
||
|
|
|
||
|
|
// NewResponsive creates a new multi-variant responsive compositor.
|
||
|
|
func NewResponsive() *Responsive {
|
||
|
|
return &Responsive{}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Variant adds a named layout variant (e.g., "desktop", "tablet", "mobile").
|
||
|
|
// Variants render in insertion order.
|
||
|
|
func (r *Responsive) Variant(name string, layout *Layout) *Responsive {
|
||
|
|
r.variants = append(r.variants, responsiveVariant{name: name, layout: layout})
|
||
|
|
return r
|
||
|
|
}
|
||
|
|
|
||
|
|
// Render produces HTML with each variant in a data-variant container.
|
||
|
|
func (r *Responsive) Render(ctx *Context) string {
|
||
|
|
var b strings.Builder
|
||
|
|
for _, v := range r.variants {
|
||
|
|
b.WriteString(`<div data-variant="`)
|
||
|
|
b.WriteString(v.name)
|
||
|
|
b.WriteString(`">`)
|
||
|
|
b.WriteString(v.layout.Render(ctx))
|
||
|
|
b.WriteString(`</div>`)
|
||
|
|
}
|
||
|
|
return b.String()
|
||
|
|
}
|