rui_orig/dataList.go

323 lines
8.8 KiB
Go

package rui
import (
"fmt"
"strconv"
"strings"
"time"
)
const (
// DataList is the constant for "data-list" property tag.
//
// Used by ColorPicker, DatePicker, EditView, NumberPicker, TimePicker.
//
// # Usage in ColorPicker
//
// List of pre-defined colors.
//
// Supported types: []string, string, []fmt.Stringer, []Color, []any containing
// elements of string, fmt.Stringer, int, int8…int64, uint, uint8…uint64.
//
// Internal type is []string, other types converted to it during assignment.
//
// Conversion rules:
// - string - contain single item.
// - []string - an array of items.
// - []fmt.Stringer - an array of objects convertible to a string.
// - []Color - An array of color values which will be converted to a string array.
// - []any - this array must contain only types which were listed in Types section.
//
// # Usage in DatePicker
//
// List of predefined dates. If we set this property, date picker may have a drop-down menu with a list of these values.
// Some browsers may ignore this property, such as Safari for macOS. The value of this property must be an array of
// strings in the format "YYYY-MM-DD".
//
// Supported types: []string, string, []fmt.Stringer, []time.Time, []any containing elements of string, fmt.Stringer, time.Time.
//
// Internal type is []string, other types converted to it during assignment.
//
// Conversion rules:
// - string - contain single item.
// - []string - an array of items.
// - []fmt.Stringer - an array of objects convertible to a string.
// - []time.Time - an array of Time values which will be converted to a string array.
// - []any - this array must contain only types which were listed in Types section.
//
// # Usage in EditView
//
// Array of recommended values.
//
// Supported types: []string, string, []fmt.Stringer, and []any containing
// elements of string, fmt.Stringer, bool, rune, float32, float64, int, int8…int64, uint, uint8…uint64.
//
// Internal type is []string, other types converted to it during assignment.
//
// Conversion rules:
// - string - contain single item.
// - []string - an array of items.
// - []fmt.Stringer - an array of objects convertible to a string.
// - []any - this array must contain only types which were listed in Types section.
//
// # Usage in NumberPicker
//
// Specify an array of recommended values.
//
// Supported types: []string, string, []fmt.Stringer, []float, []int, []bool, []any containing elements
// of string, fmt.Stringer, rune, float32, float64, int, int8…int64, uint, uint8…uint64.
//
// Internal type is []string, other types converted to it during assignment.
//
// Conversion rules:
// - string - must contain integer or floating point number, converted to []string.
// - []string - an array of strings which must contain integer or floating point numbers, stored as is.
// - []fmt.Stringer - object which implement this interface must contain integer or floating point numbers, converted to a []string.
// - []float - converted to []string.
// - []int - converted to []string.
// - []any - an array which may contain types listed in Types section above, each value will be converted to a string and wrapped to array.
//
// # Usage in TimePicker
//
// An array of recommended values. The value of this property must be an array of strings in the format "HH:MM:SS" or
// "HH:MM".
//
// Supported types: []string, string, []fmt.Stringer, []time.Time, []any containing elements of string, fmt.Stringer, time.Time.
//
// Internal type is []string, other types converted to it during assignment.
//
// Conversion rules:
// - string - contain single item.
// - []string - an array of items.
// - []fmt.Stringer - an array of objects convertible to a string.
// - []time.Time - An array of Time values which will be converted to a string array.
// - []any - this array must contain only types which were listed in Types section.
DataList PropertyName = "data-list"
)
func dataListID(view View) string {
return view.htmlID() + "-datalist"
}
func normalizeDataListTag(tag PropertyName) PropertyName {
switch tag {
case "datalist":
return DataList
}
return tag
}
func setDataList(properties Properties, value any, dateTimeFormat string) []PropertyName {
if items, ok := anyToStringArray(value, dateTimeFormat); ok {
properties.setRaw(DataList, items)
return []PropertyName{DataList}
}
notCompatibleType(DataList, value)
return nil
}
func anyToStringArray(value any, dateTimeFormat string) ([]string, bool) {
switch value := value.(type) {
case string:
return []string{value}, true
case []string:
return value, true
case []DataValue:
items := make([]string, 0, len(value))
for _, val := range value {
if !val.IsObject() {
items = append(items, val.Value())
}
}
return items, true
case []fmt.Stringer:
items := make([]string, len(value))
for i, str := range value {
items[i] = str.String()
}
return items, true
case []Color:
items := make([]string, len(value))
for i, str := range value {
items[i] = str.String()
}
return items, true
case []SizeUnit:
items := make([]string, len(value))
for i, str := range value {
items[i] = str.String()
}
return items, true
case []AngleUnit:
items := make([]string, len(value))
for i, str := range value {
items[i] = str.String()
}
return items, true
case []float32:
items := make([]string, len(value))
for i, val := range value {
items[i] = fmt.Sprintf("%g", float64(val))
}
return items, true
case []float64:
items := make([]string, len(value))
for i, val := range value {
items[i] = fmt.Sprintf("%g", val)
}
return items, true
case []int:
return intArrayToStringArray(value), true
case []uint:
return intArrayToStringArray(value), true
case []int8:
return intArrayToStringArray(value), true
case []uint8:
return intArrayToStringArray(value), true
case []int16:
return intArrayToStringArray(value), true
case []uint16:
return intArrayToStringArray(value), true
case []int32:
return intArrayToStringArray(value), true
case []uint32:
return intArrayToStringArray(value), true
case []int64:
return intArrayToStringArray(value), true
case []uint64:
return intArrayToStringArray(value), true
case []bool:
items := make([]string, len(value))
for i, val := range value {
if val {
items[i] = "true"
} else {
items[i] = "false"
}
}
return items, true
case []time.Time:
if dateTimeFormat == "" {
dateTimeFormat = dateFormat + " " + timeFormat
}
items := make([]string, len(value))
for i, val := range value {
items[i] = val.Format(dateTimeFormat)
}
return items, true
case []any:
items := make([]string, 0, len(value))
for _, v := range value {
switch val := v.(type) {
case string:
items = append(items, val)
case fmt.Stringer:
items = append(items, val.String())
case bool:
if val {
items = append(items, "true")
} else {
items = append(items, "false")
}
case float32:
items = append(items, fmt.Sprintf("%g", float64(val)))
case float64:
items = append(items, fmt.Sprintf("%g", val))
case rune:
items = append(items, string(val))
default:
if n, ok := isInt(v); ok {
items = append(items, strconv.Itoa(n))
} else {
return []string{}, false
}
}
}
return items, true
}
return []string{}, false
}
func getDataListProperty(properties Properties) []string {
if value := properties.getRaw(DataList); value != nil {
if items, ok := value.([]string); ok {
return items
}
}
return nil
}
func dataListHtmlSubviews(view View, buffer *strings.Builder, normalizeItem func(text string, session Session) string) {
if items := getDataListProperty(view); len(items) > 0 {
session := view.Session()
buffer.WriteString(`<datalist id="`)
buffer.WriteString(dataListID(view))
buffer.WriteString(`">`)
for _, text := range items {
text = normalizeItem(text, session)
if strings.ContainsRune(text, '"') {
text = strings.ReplaceAll(text, `"`, `&#34;`)
}
if strings.ContainsRune(text, '\n') {
text = strings.ReplaceAll(text, "\n", `\n`)
}
buffer.WriteString(`<option value="`)
buffer.WriteString(text)
buffer.WriteString(`"></option>`)
}
buffer.WriteString(`</datalist>`)
}
}
func dataListHtmlProperties(view View, buffer *strings.Builder) {
if len(getDataListProperty(view)) > 0 {
buffer.WriteString(` list="`)
buffer.WriteString(dataListID(view))
buffer.WriteString(`"`)
}
}
// GetDataList returns the data list of an editor.
// If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
func GetDataList(view View, subviewID ...string) []string {
if view = getSubview(view, subviewID); view != nil {
return getDataListProperty(view)
}
return []string{}
}