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ferret/pkg/stdlib/html/focus.go
2019-09-07 12:59:37 -04:00

33 lines
734 B
Go

package html
import (
"context"
"github.com/MontFerret/ferret/pkg/drivers"
"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
)
// FOCUS Sets focus on the element.
// @param target (HTMLPage | HTMLDocument | HTMLElement) - Target node.
// @param selector (String, optional) - Optional CSS selector.
func Focus(ctx context.Context, args ...core.Value) (core.Value, error) {
err := core.ValidateArgs(args, 1, 2)
if err != nil {
return values.None, err
}
el, err := drivers.ToElement(args[0])
if err != nil {
return values.None, err
}
if len(args) == 1 {
return values.None, el.Focus(ctx)
}
return values.None, el.FocusBySelector(ctx, values.ToString(args[1]))
}