mirror of https://github.com/anoshenko/rui.git
411 lines
11 KiB
Go
411 lines
11 KiB
Go
package rui
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import (
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"strconv"
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"strings"
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"time"
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)
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const (
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DateChangedEvent = "date-changed"
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DatePickerMin = "date-picker-min"
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DatePickerMax = "date-picker-max"
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DatePickerStep = "date-picker-step"
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DatePickerValue = "date-picker-value"
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dateFormat = "2006-01-02"
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)
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// DatePicker - DatePicker view
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type DatePicker interface {
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View
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}
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type datePickerData struct {
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viewData
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dateChangedListeners []func(DatePicker, time.Time, time.Time)
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}
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// NewDatePicker create new DatePicker object and return it
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func NewDatePicker(session Session, params Params) DatePicker {
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view := new(datePickerData)
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view.init(session)
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setInitParams(view, params)
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return view
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}
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func newDatePicker(session Session) View {
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return NewDatePicker(session, nil)
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}
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func (picker *datePickerData) init(session Session) {
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picker.viewData.init(session)
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picker.tag = "DatePicker"
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picker.hasHtmlDisabled = true
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picker.dateChangedListeners = []func(DatePicker, time.Time, time.Time){}
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}
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func (picker *datePickerData) String() string {
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return getViewString(picker, nil)
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}
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func (picker *datePickerData) Focusable() bool {
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return true
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}
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func (picker *datePickerData) normalizeTag(tag string) string {
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tag = strings.ToLower(tag)
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switch tag {
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case Type, Min, Max, Step, Value:
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return "date-picker-" + tag
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}
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return tag
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}
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func (picker *datePickerData) Remove(tag string) {
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picker.remove(picker.normalizeTag(tag))
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}
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func (picker *datePickerData) remove(tag string) {
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switch tag {
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case DateChangedEvent:
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if len(picker.dateChangedListeners) > 0 {
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picker.dateChangedListeners = []func(DatePicker, time.Time, time.Time){}
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picker.propertyChangedEvent(tag)
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}
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return
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case DatePickerMin:
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delete(picker.properties, DatePickerMin)
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if picker.created {
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picker.session.removeProperty(picker.htmlID(), Min)
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}
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case DatePickerMax:
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delete(picker.properties, DatePickerMax)
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if picker.created {
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picker.session.removeProperty(picker.htmlID(), Max)
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}
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case DatePickerStep:
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delete(picker.properties, DatePickerStep)
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if picker.created {
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picker.session.removeProperty(picker.htmlID(), Step)
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}
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case DatePickerValue:
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if _, ok := picker.properties[DatePickerValue]; ok {
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oldDate := GetDatePickerValue(picker)
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delete(picker.properties, DatePickerValue)
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date := GetDatePickerValue(picker)
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if picker.created {
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picker.session.callFunc("setInputValue", picker.htmlID(), date.Format(dateFormat))
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}
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for _, listener := range picker.dateChangedListeners {
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listener(picker, date, oldDate)
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}
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} else {
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return
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}
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default:
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picker.viewData.remove(tag)
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return
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}
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picker.propertyChangedEvent(tag)
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}
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func (picker *datePickerData) Set(tag string, value any) bool {
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return picker.set(picker.normalizeTag(tag), value)
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}
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func (picker *datePickerData) set(tag string, value any) bool {
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if value == nil {
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picker.remove(tag)
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return true
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}
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setTimeValue := func(tag string) (time.Time, bool) {
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switch value := value.(type) {
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case time.Time:
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picker.properties[tag] = value
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return value, true
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case string:
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if text, ok := picker.Session().resolveConstants(value); ok {
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format := "20060102"
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if strings.ContainsRune(text, '-') {
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if part := strings.Split(text, "-"); len(part) == 3 {
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if part[0] != "" && part[0][0] > '9' {
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if len(part[2]) == 2 {
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format = "Jan-02-06"
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} else {
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format = "Jan-02-2006"
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}
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} else if part[1] != "" && part[1][0] > '9' {
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format = "02-Jan-2006"
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} else {
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format = "2006-01-02"
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}
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}
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} else if strings.ContainsRune(text, ' ') {
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if part := strings.Split(text, " "); len(part) == 3 {
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if part[0] != "" && part[0][0] > '9' {
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format = "January 02, 2006"
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} else {
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format = "02 January 2006"
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}
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}
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} else if strings.ContainsRune(text, '/') {
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if part := strings.Split(text, "/"); len(part) == 3 {
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if len(part[2]) == 2 {
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format = "01/02/06"
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} else {
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format = "01/02/2006"
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}
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}
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} else if len(text) == 6 {
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format = "010206"
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}
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if date, err := time.Parse(format, text); err == nil {
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picker.properties[tag] = value
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return date, true
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}
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}
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}
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notCompatibleType(tag, value)
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return time.Now(), false
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}
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switch tag {
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case DatePickerMin:
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old, oldOK := getDateProperty(picker, DatePickerMin, Min)
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if date, ok := setTimeValue(DatePickerMin); ok {
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if !oldOK || date != old {
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if picker.created {
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picker.session.updateProperty(picker.htmlID(), Min, date.Format(dateFormat))
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}
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picker.propertyChangedEvent(tag)
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}
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return true
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}
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case DatePickerMax:
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old, oldOK := getDateProperty(picker, DatePickerMax, Max)
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if date, ok := setTimeValue(DatePickerMax); ok {
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if !oldOK || date != old {
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if picker.created {
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picker.session.updateProperty(picker.htmlID(), Max, date.Format(dateFormat))
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}
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picker.propertyChangedEvent(tag)
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}
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return true
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}
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case DatePickerStep:
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oldStep := GetDatePickerStep(picker)
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if picker.setIntProperty(DatePickerStep, value) {
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if step := GetDatePickerStep(picker); oldStep != step {
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if picker.created {
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if step > 0 {
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picker.session.updateProperty(picker.htmlID(), Step, strconv.Itoa(step))
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} else {
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picker.session.removeProperty(picker.htmlID(), Step)
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}
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}
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picker.propertyChangedEvent(tag)
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}
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return true
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}
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case DatePickerValue:
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oldDate := GetDatePickerValue(picker)
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if date, ok := setTimeValue(DatePickerValue); ok {
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if date != oldDate {
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if picker.created {
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picker.session.callFunc("setInputValue", picker.htmlID(), date.Format(dateFormat))
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}
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for _, listener := range picker.dateChangedListeners {
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listener(picker, date, oldDate)
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}
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picker.propertyChangedEvent(tag)
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}
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return true
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}
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case DateChangedEvent:
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listeners, ok := valueToEventWithOldListeners[DatePicker, time.Time](value)
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if !ok {
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notCompatibleType(tag, value)
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return false
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} else if listeners == nil {
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listeners = []func(DatePicker, time.Time, time.Time){}
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}
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picker.dateChangedListeners = listeners
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picker.propertyChangedEvent(tag)
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return true
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default:
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return picker.viewData.set(tag, value)
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}
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return false
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}
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func (picker *datePickerData) Get(tag string) any {
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return picker.get(picker.normalizeTag(tag))
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}
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func (picker *datePickerData) get(tag string) any {
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switch tag {
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case DateChangedEvent:
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return picker.dateChangedListeners
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default:
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return picker.viewData.get(tag)
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}
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}
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func (picker *datePickerData) htmlTag() string {
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return "input"
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}
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func (picker *datePickerData) htmlProperties(self View, buffer *strings.Builder) {
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picker.viewData.htmlProperties(self, buffer)
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buffer.WriteString(` type="date"`)
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if min, ok := getDateProperty(picker, DatePickerMin, Min); ok {
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buffer.WriteString(` min="`)
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buffer.WriteString(min.Format(dateFormat))
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buffer.WriteByte('"')
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}
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if max, ok := getDateProperty(picker, DatePickerMax, Max); ok {
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buffer.WriteString(` max="`)
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buffer.WriteString(max.Format(dateFormat))
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buffer.WriteByte('"')
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}
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if step, ok := intProperty(picker, DatePickerStep, picker.Session(), 0); ok && step > 0 {
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buffer.WriteString(` step="`)
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buffer.WriteString(strconv.Itoa(step))
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buffer.WriteByte('"')
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}
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buffer.WriteString(` value="`)
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buffer.WriteString(GetDatePickerValue(picker).Format(dateFormat))
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buffer.WriteByte('"')
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buffer.WriteString(` oninput="editViewInputEvent(this)"`)
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if picker.getRaw(ClickEvent) == nil {
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buffer.WriteString(` onclick="stopEventPropagation(this, event)"`)
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}
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}
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func (picker *datePickerData) handleCommand(self View, command string, data DataObject) bool {
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switch command {
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case "textChanged":
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if text, ok := data.PropertyValue("text"); ok {
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if value, err := time.Parse(dateFormat, text); err == nil {
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oldValue := GetDatePickerValue(picker)
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picker.properties[DatePickerValue] = value
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if value != oldValue {
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for _, listener := range picker.dateChangedListeners {
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listener(picker, value, oldValue)
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}
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}
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}
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}
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return true
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}
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return picker.viewData.handleCommand(self, command, data)
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}
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func getDateProperty(view View, mainTag, shortTag string) (time.Time, bool) {
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valueToTime := func(value any) (time.Time, bool) {
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if value != nil {
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switch value := value.(type) {
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case time.Time:
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return value, true
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case string:
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if text, ok := view.Session().resolveConstants(value); ok {
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if result, err := time.Parse(dateFormat, text); err == nil {
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return result, true
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}
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}
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}
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}
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return time.Now(), false
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}
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if view != nil {
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if result, ok := valueToTime(view.getRaw(mainTag)); ok {
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return result, true
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}
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if value := valueFromStyle(view, shortTag); value != nil {
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if result, ok := valueToTime(value); ok {
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return result, true
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}
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}
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}
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return time.Now(), false
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}
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// GetDatePickerMin returns the min date of DatePicker subview and "true" as the second value if the min date is set,
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// "false" as the second value otherwise.
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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 GetDatePickerMin(view View, subviewID ...string) (time.Time, bool) {
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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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return getDateProperty(view, DatePickerMin, Min)
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}
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return time.Now(), false
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}
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// GetDatePickerMax returns the max date of DatePicker subview and "true" as the second value if the min date is set,
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// "false" as the second value otherwise.
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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 GetDatePickerMax(view View, subviewID ...string) (time.Time, bool) {
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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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return getDateProperty(view, DatePickerMax, Max)
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}
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return time.Now(), false
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}
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// GetDatePickerStep returns the date changing step in days of DatePicker subview.
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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 GetDatePickerStep(view View, subviewID ...string) int {
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return intStyledProperty(view, subviewID, DatePickerStep, 0)
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}
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// GetDatePickerValue returns the date of DatePicker subview.
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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 GetDatePickerValue(view View, subviewID ...string) time.Time {
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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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return time.Now()
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}
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date, _ := getDateProperty(view, DatePickerValue, Value)
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return date
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}
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// GetDateChangedListeners returns the DateChangedListener list of an DatePicker subview.
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// If there are no listeners then the empty list is returned
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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 GetDateChangedListeners(view View, subviewID ...string) []func(DatePicker, time.Time, time.Time) {
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return getEventWithOldListeners[DatePicker, time.Time](view, subviewID, DateChangedEvent)
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}
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