mirror of https://github.com/anoshenko/rui.git
116 lines
2.7 KiB
Go
116 lines
2.7 KiB
Go
package rui
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import "strings"
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const (
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// DataList is the constant for the "data-list" property tag.
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DataList = "data-list"
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)
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type dataList struct {
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dataList []string
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dataListHtml bool
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}
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func (list *dataList) dataListInit() {
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list.dataList = []string{}
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}
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func (list *dataList) dataListID(view View) string {
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return view.htmlID() + "-datalist"
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}
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func (list *dataList) normalizeDataListTag(tag string) string {
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switch tag {
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case "datalist":
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return DataList
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}
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return tag
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}
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func (list *dataList) setDataList(view View, value any, created bool) bool {
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items, ok := anyToStringArray(value)
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if !ok {
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notCompatibleType(DataList, value)
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return false
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}
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list.dataList = items
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if created {
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session := view.Session()
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dataListID := list.dataListID(view)
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buffer := allocStringBuilder()
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defer freeStringBuilder(buffer)
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if list.dataListHtml {
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list.dataListItemsHtml(buffer)
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session.updateInnerHTML(dataListID, buffer.String())
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} else {
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list.dataListHtmlCode(view, buffer)
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session.appendToInnerHTML(view.parentHTMLID(), buffer.String())
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list.dataListHtml = true
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session.updateProperty(view.htmlID(), "list", dataListID)
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}
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}
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return true
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}
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func (list *dataList) dataListHtmlSubviews(view View, buffer *strings.Builder) {
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if len(list.dataList) > 0 {
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list.dataListHtmlCode(view, buffer)
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list.dataListHtml = true
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} else {
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list.dataListHtml = false
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}
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}
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func (list *dataList) dataListHtmlCode(view View, buffer *strings.Builder) {
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buffer.WriteString(`<datalist id="`)
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buffer.WriteString(list.dataListID(view))
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buffer.WriteString(`">`)
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list.dataListItemsHtml(buffer)
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buffer.WriteString(`</datalist>`)
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}
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func (list *dataList) dataListItemsHtml(buffer *strings.Builder) {
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for _, text := range list.dataList {
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if strings.ContainsRune(text, '"') {
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text = strings.ReplaceAll(text, `"`, `"`)
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}
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if strings.ContainsRune(text, '\n') {
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text = strings.ReplaceAll(text, "\n", `\n`)
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}
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buffer.WriteString(`<option value="`)
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buffer.WriteString(text)
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buffer.WriteString(`"></option>`)
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}
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}
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func (list *dataList) dataListHtmlProperties(view View, buffer *strings.Builder) {
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if len(list.dataList) > 0 {
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buffer.WriteString(` list="`)
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buffer.WriteString(list.dataListID(view))
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buffer.WriteString(`"`)
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}
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}
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// GetDataList returns the data list of an editor.
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// If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
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func GetDataList(view View, subviewID ...string) []string {
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if len(subviewID) > 0 && subviewID[0] != "" {
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view = ViewByID(view, subviewID[0])
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}
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if view != nil {
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if value := view.Get(DataList); value != nil {
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if list, ok := value.([]string); ok {
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return list
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}
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}
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}
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return []string{}
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}
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