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utility.go
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utility.go
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package styles
import (
"github.com/AccentDesign/gcss"
"io"
"reflect"
)
var (
transitionColors = gcss.Style{
Selector: ".transition-colors",
CustomProps: []gcss.CustomProp{
{Attr: "transition-property", Value: "color, background-color, border-color, text-decoration-color, fill, stroke"},
{Attr: "transition-timing-function", Value: "cubic-bezier(0.4, 0, 0.2, 1)"},
{Attr: "transition-duration", Value: "150ms"},
},
}
)
var utilities = Styles{}
// UtilityCSS Writes the CSS for the utilities to the writer.
func UtilityCSS(w io.Writer) error {
for _, style := range utilities {
if err := style.CSS(w); err != nil {
return err
}
}
return nil
}
// MergeProps merges multiple gcss.Props structs into a single struct.
func MergeProps(props ...gcss.Props) gcss.Props {
merged := gcss.Props{}
for _, p := range props {
v := reflect.ValueOf(p)
vType := v.Type()
for i := 0; i < v.NumField(); i++ {
field := v.Field(i)
if !field.IsZero() {
reflect.ValueOf(&merged).Elem().FieldByName(vType.Field(i).Name).Set(field)
}
}
}
return merged
}
// MergeStyles merges multiple gcss.Style structs into a single struct.
// The first style is used as the base style.
func MergeStyles(styles ...gcss.Style) gcss.Style {
merged := gcss.Style{Selector: styles[0].Selector}
for _, s := range styles {
merged.Props = MergeProps(merged.Props, s.Props)
merged.CustomProps = append(merged.CustomProps, s.CustomProps...)
}
return merged
}