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textarea.go
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textarea.go
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package widget
import (
"github.com/benpate/form"
"github.com/benpate/html"
"github.com/benpate/rosetta/convert"
"github.com/benpate/rosetta/schema"
)
// TextArea renders a long text <textarea> widget
type TextArea struct{}
func (widget TextArea) View(element *form.Element, s *schema.Schema, _ form.LookupProvider, value any, b *html.Builder) error {
// find the path and schema to use
valueString := element.GetString(value, s)
// TODO: LOW: apply schema formats?
b.Div().Class("layout-value").InnerText(valueString).Close()
return nil
}
func (widget TextArea) Edit(element *form.Element, s *schema.Schema, _ form.LookupProvider, value any, b *html.Builder) error {
if element.ReadOnly {
return TextArea{}.View(element, s, nil, value, b)
}
// find the path and schema to use
schemaElement := element.GetSchema(s)
valueString := element.GetString(value, s)
elementID := element.ID
if elementID == "" {
elementID = "textarea-" + element.Path
}
// Start building a new tag
tag := b.Container("textarea").
Name(element.Path).
ID(elementID).
Attr("hint", element.Description).
Attr("rows", element.Options.GetString("rows"))
if focus, ok := element.Options.GetBoolOK("focus"); ok && focus {
tag.Attr("autofocus", "true")
}
// Add attributes that depend on what KIND of input we have.
if schemaString, ok := schemaElement.(schema.String); ok {
if schemaString.MinLength > 0 {
tag.Attr("minlength", convert.String(schemaString.MinLength))
}
if schemaString.MaxLength > 0 {
tag.Attr("maxlength", convert.String(schemaString.MaxLength))
}
if schemaString.Pattern != "" {
tag.Attr("pattern", schemaString.Pattern)
}
if schemaString.Required {
tag.Attr("required", "true")
}
}
tag.TabIndex("0")
tag.InnerText(valueString).Close()
return nil
}
/***********************************
* Wiget Metadata
***********************************/
func (widget TextArea) ShowLabels() bool {
return true
}
func (widget TextArea) Encoding(_ *form.Element) string {
return ""
}