rui_orig/dataList.go

116 lines
2.7 KiB
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2024-05-18 18:57:41 +03:00
package rui
import "strings"
const (
// DataList is the constant for the "data-list" property tag.
DataList = "data-list"
)
type dataList struct {
dataList []string
dataListHtml bool
}
func (list *dataList) dataListInit() {
list.dataList = []string{}
}
func (list *dataList) dataListID(view View) string {
return view.htmlID() + "-datalist"
}
func (list *dataList) normalizeDataListTag(tag string) string {
switch tag {
case "datalist":
return DataList
}
return tag
}
func (list *dataList) setDataList(view View, value any, created bool) bool {
items, ok := anyToStringArray(value)
if !ok {
notCompatibleType(DataList, value)
return false
}
list.dataList = items
if created {
session := view.Session()
dataListID := list.dataListID(view)
buffer := allocStringBuilder()
defer freeStringBuilder(buffer)
if list.dataListHtml {
list.dataListItemsHtml(buffer)
session.updateInnerHTML(dataListID, buffer.String())
} else {
list.dataListHtmlCode(view, buffer)
session.appendToInnerHTML(view.parentHTMLID(), buffer.String())
list.dataListHtml = true
session.updateProperty(view.htmlID(), "list", dataListID)
}
}
return true
}
func (list *dataList) dataListHtmlSubviews(view View, buffer *strings.Builder) {
if len(list.dataList) > 0 {
list.dataListHtmlCode(view, buffer)
list.dataListHtml = true
} else {
list.dataListHtml = false
}
}
func (list *dataList) dataListHtmlCode(view View, buffer *strings.Builder) {
buffer.WriteString(`<datalist id="`)
buffer.WriteString(list.dataListID(view))
buffer.WriteString(`">`)
list.dataListItemsHtml(buffer)
buffer.WriteString(`</datalist>`)
}
func (list *dataList) dataListItemsHtml(buffer *strings.Builder) {
for _, text := range list.dataList {
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>`)
}
}
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func (list *dataList) dataListHtmlProperties(view View, buffer *strings.Builder) {
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if len(list.dataList) > 0 {
buffer.WriteString(` list="`)
buffer.WriteString(list.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 len(subviewID) > 0 && subviewID[0] != "" {
view = ViewByID(view, subviewID[0])
}
if view != nil {
if value := view.Get(DataList); value != nil {
if list, ok := value.([]string); ok {
return list
}
}
}
return []string{}
}