rui_orig/timePicker.go

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package rui
import (
"strconv"
"strings"
"time"
)
// Constants for [TimePicker] specific properties and events.
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const (
// TimeChangedEvent is the constant for "time-changed" property tag.
//
// Used by `TimePicker`.
// Occur when current time of the time picker has been changed.
//
// General listener format:
// `func(picker rui.TimePicker, newTime, oldTime time.Time)`.
//
// where:
// picker - Interface of a time picker which generated this event,
// newTime - New time value,
// oldTime - Old time value.
//
// Allowed listener formats:
// `func(picker rui.TimePicker, newTime time.Time)`,
// `func(newTime, oldTime time.Time)`,
// `func(newTime time.Time)`,
// `func(picker rui.TimePicker)`,
// `func()`.
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TimeChangedEvent = "time-changed"
// TimePickerMin is the constant for "time-picker-min" property tag.
//
// Used by `TimePicker`.
// The minimum value of the time.
//
// Supported types: `time.Time`, `string`.
//
// Internal type is `time.Time`, other types converted to it during assignment.
//
// Conversion rules:
// `string` - values of this type parsed and converted to `time.Time`. The following formats are supported:
// "HH:MM:SS" - "08:15:00".
// "HH:MM:SS PM" - "08:15:00 AM".
// "HH:MM" - "08:15".
// "HH:MM PM" - "08:15 AM".
TimePickerMin = "time-picker-min"
// TimePickerMax is the constant for "time-picker-max" property tag.
//
// Used by `TimePicker`.
// The maximum value of the time.
//
// Supported types: `time.Time`, `string`.
//
// Internal type is `time.Time`, other types converted to it during assignment.
//
// Conversion rules:
// `string` - values of this type parsed and converted to `time.Time`. The following formats are supported:
// "HH:MM:SS" - "08:15:00".
// "HH:MM:SS PM" - "08:15:00 AM".
// "HH:MM" - "08:15".
// "HH:MM PM" - "08:15 AM".
TimePickerMax = "time-picker-max"
// TimePickerStep is the constant for "time-picker-step" property tag.
//
// Used by `TimePicker`.
// Time step in seconds.
//
// Supported types: `int`, `string`.
//
// Values:
// >= `0` or >= "0" - Step value in seconds used to increment or decrement time.
TimePickerStep = "time-picker-step"
// TimePickerValue is the constant for "time-picker-value" property tag.
//
// Used by `TimePicker`.
// Current value.
//
// Supported types: `time.Time`, `string`.
//
// Internal type is `time.Time`, other types converted to it during assignment.
//
// Conversion rules:
// `string` - values of this type parsed and converted to `time.Time`. The following formats are supported:
// "HH:MM:SS" - "08:15:00".
// "HH:MM:SS PM" - "08:15:00 AM".
// "HH:MM" - "08:15".
// "HH:MM PM" - "08:15 AM".
TimePickerValue = "time-picker-value"
timeFormat = "15:04:05"
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)
// TimePicker represents a TimePicker view
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type TimePicker interface {
View
}
type timePickerData struct {
viewData
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dataList
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timeChangedListeners []func(TimePicker, time.Time, time.Time)
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}
// NewTimePicker create new TimePicker object and return it
func NewTimePicker(session Session, params Params) TimePicker {
view := new(timePickerData)
view.init(session)
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setInitParams(view, params)
return view
}
func newTimePicker(session Session) View {
return NewTimePicker(session, nil)
}
func (picker *timePickerData) init(session Session) {
picker.viewData.init(session)
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picker.tag = "TimePicker"
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picker.hasHtmlDisabled = true
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picker.timeChangedListeners = []func(TimePicker, time.Time, time.Time){}
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picker.dataListInit()
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}
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func (picker *timePickerData) String() string {
return getViewString(picker, nil)
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}
func (picker *timePickerData) Focusable() bool {
return true
}
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func (picker *timePickerData) normalizeTag(tag string) string {
tag = strings.ToLower(tag)
switch tag {
case Type, Min, Max, Step, Value:
return "time-picker-" + tag
}
return tag
}
func (picker *timePickerData) Remove(tag string) {
picker.remove(picker.normalizeTag(tag))
}
func (picker *timePickerData) remove(tag string) {
switch tag {
case TimeChangedEvent:
if len(picker.timeChangedListeners) > 0 {
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picker.timeChangedListeners = []func(TimePicker, time.Time, time.Time){}
picker.propertyChangedEvent(tag)
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}
return
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case TimePickerMin:
delete(picker.properties, TimePickerMin)
if picker.created {
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picker.session.removeProperty(picker.htmlID(), Min)
}
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case TimePickerMax:
delete(picker.properties, TimePickerMax)
if picker.created {
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picker.session.removeProperty(picker.htmlID(), Max)
}
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case TimePickerStep:
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delete(picker.properties, TimePickerStep)
if picker.created {
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picker.session.removeProperty(picker.htmlID(), Step)
}
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case TimePickerValue:
if _, ok := picker.properties[TimePickerValue]; ok {
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oldTime := GetTimePickerValue(picker)
delete(picker.properties, TimePickerValue)
time := GetTimePickerValue(picker)
if picker.created {
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picker.session.callFunc("setInputValue", picker.htmlID(), time.Format(timeFormat))
}
for _, listener := range picker.timeChangedListeners {
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listener(picker, time, oldTime)
}
} else {
return
}
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case DataList:
if len(picker.dataList.dataList) > 0 {
picker.setDataList(picker, []string{}, true)
}
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default:
picker.viewData.remove(tag)
return
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}
picker.propertyChangedEvent(tag)
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}
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func (picker *timePickerData) Set(tag string, value any) bool {
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return picker.set(picker.normalizeTag(tag), value)
}
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func (picker *timePickerData) set(tag string, value any) bool {
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if value == nil {
picker.remove(tag)
return true
}
setTimeValue := func(tag string) (time.Time, bool) {
switch value := value.(type) {
case time.Time:
picker.properties[tag] = value
return value, true
case string:
if text, ok := picker.Session().resolveConstants(value); ok {
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lowText := strings.ToLower(text)
pm := strings.HasSuffix(lowText, "pm") || strings.HasSuffix(lowText, "am")
var format string
switch len(strings.Split(text, ":")) {
case 2:
if pm {
format = "3:04 PM"
} else {
format = "15:04"
}
default:
if pm {
format = "03:04:05 PM"
} else {
format = "15:04:05"
}
}
if time, err := time.Parse(format, text); err == nil {
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picker.properties[tag] = value
return time, true
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} else {
ErrorLog(err.Error())
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}
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return time.Now(), false
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}
}
notCompatibleType(tag, value)
return time.Now(), false
}
switch tag {
case TimePickerMin:
old, oldOK := getTimeProperty(picker, TimePickerMin, Min)
if time, ok := setTimeValue(TimePickerMin); ok {
if !oldOK || time != old {
if picker.created {
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picker.session.updateProperty(picker.htmlID(), Min, time.Format(timeFormat))
}
picker.propertyChangedEvent(tag)
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}
return true
}
case TimePickerMax:
old, oldOK := getTimeProperty(picker, TimePickerMax, Max)
if time, ok := setTimeValue(TimePickerMax); ok {
if !oldOK || time != old {
if picker.created {
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picker.session.updateProperty(picker.htmlID(), Max, time.Format(timeFormat))
}
picker.propertyChangedEvent(tag)
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}
return true
}
case TimePickerStep:
oldStep := GetTimePickerStep(picker)
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if picker.setIntProperty(TimePickerStep, value) {
if step := GetTimePickerStep(picker); oldStep != step {
if picker.created {
if step > 0 {
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picker.session.updateProperty(picker.htmlID(), Step, strconv.Itoa(step))
} else {
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picker.session.removeProperty(picker.htmlID(), Step)
}
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}
picker.propertyChangedEvent(tag)
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}
return true
}
case TimePickerValue:
oldTime := GetTimePickerValue(picker)
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if time, ok := setTimeValue(TimePickerValue); ok {
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if time != oldTime {
if picker.created {
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picker.session.callFunc("setInputValue", picker.htmlID(), time.Format(timeFormat))
}
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for _, listener := range picker.timeChangedListeners {
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listener(picker, time, oldTime)
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}
picker.propertyChangedEvent(tag)
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}
return true
}
case TimeChangedEvent:
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listeners, ok := valueToEventWithOldListeners[TimePicker, time.Time](value)
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if !ok {
notCompatibleType(tag, value)
return false
} else if listeners == nil {
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listeners = []func(TimePicker, time.Time, time.Time){}
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}
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picker.timeChangedListeners = listeners
picker.propertyChangedEvent(tag)
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return true
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case DataList:
return picker.setDataList(picker, value, picker.created)
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default:
return picker.viewData.set(tag, value)
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}
return false
}
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func (picker *timePickerData) Get(tag string) any {
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return picker.get(picker.normalizeTag(tag))
}
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func (picker *timePickerData) get(tag string) any {
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switch tag {
case TimeChangedEvent:
return picker.timeChangedListeners
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case DataList:
return picker.dataList.dataList
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default:
return picker.viewData.get(tag)
}
}
func (picker *timePickerData) htmlTag() string {
return "input"
}
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func (picker *timePickerData) htmlSubviews(self View, buffer *strings.Builder) {
picker.dataListHtmlSubviews(self, buffer)
}
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func (picker *timePickerData) htmlProperties(self View, buffer *strings.Builder) {
picker.viewData.htmlProperties(self, buffer)
buffer.WriteString(` type="time"`)
if min, ok := getTimeProperty(picker, TimePickerMin, Min); ok {
buffer.WriteString(` min="`)
buffer.WriteString(min.Format(timeFormat))
buffer.WriteByte('"')
}
if max, ok := getTimeProperty(picker, TimePickerMax, Max); ok {
buffer.WriteString(` max="`)
buffer.WriteString(max.Format(timeFormat))
buffer.WriteByte('"')
}
if step, ok := intProperty(picker, TimePickerStep, picker.Session(), 0); ok && step > 0 {
buffer.WriteString(` step="`)
buffer.WriteString(strconv.Itoa(step))
buffer.WriteByte('"')
}
buffer.WriteString(` value="`)
buffer.WriteString(GetTimePickerValue(picker).Format(timeFormat))
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buffer.WriteByte('"')
buffer.WriteString(` oninput="editViewInputEvent(this)"`)
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if picker.getRaw(ClickEvent) == nil {
buffer.WriteString(` onclick="stopEventPropagation(this, event)"`)
}
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picker.dataListHtmlProperties(picker, buffer)
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}
func (picker *timePickerData) handleCommand(self View, command string, data DataObject) bool {
switch command {
case "textChanged":
if text, ok := data.PropertyValue("text"); ok {
if value, err := time.Parse(timeFormat, text); err == nil {
oldValue := GetTimePickerValue(picker)
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picker.properties[TimePickerValue] = value
if value != oldValue {
for _, listener := range picker.timeChangedListeners {
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listener(picker, value, oldValue)
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}
}
}
}
return true
}
return picker.viewData.handleCommand(self, command, data)
}
func getTimeProperty(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 {
switch value := value.(type) {
case time.Time:
return value, true
case string:
if text, ok := view.Session().resolveConstants(value); ok {
if result, err := time.Parse(timeFormat, text); err == nil {
return result, true
}
}
}
}
return time.Now(), false
}
if view != nil {
if result, ok := valueToTime(view.getRaw(mainTag)); ok {
return result, true
}
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if value := valueFromStyle(view, shortTag); value != nil {
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if result, ok := valueToTime(value); ok {
return result, true
}
}
}
return time.Now(), false
}
// GetTimePickerMin returns the min time of TimePicker subview and "true" as the second value if the min time is set,
// "false" as the second value otherwise.
// If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
func GetTimePickerMin(view View, subviewID ...string) (time.Time, bool) {
if len(subviewID) > 0 && subviewID[0] != "" {
view = ViewByID(view, subviewID[0])
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}
if view != nil {
return getTimeProperty(view, TimePickerMin, Min)
}
return time.Now(), false
}
// GetTimePickerMax returns the max time of TimePicker subview and "true" as the second value if the min time is set,
// "false" as the second value otherwise.
// If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
func GetTimePickerMax(view View, subviewID ...string) (time.Time, bool) {
if len(subviewID) > 0 && subviewID[0] != "" {
view = ViewByID(view, subviewID[0])
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}
if view != nil {
return getTimeProperty(view, TimePickerMax, Max)
}
return time.Now(), false
}
// GetTimePickerStep returns the time changing step in seconds of TimePicker subview.
// If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
func GetTimePickerStep(view View, subviewID ...string) int {
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return intStyledProperty(view, subviewID, TimePickerStep, 60)
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}
// GetTimePickerValue returns the time of TimePicker subview.
// If the second argument (subviewID) is not specified or it is "" then a value from the first argument (view) is returned.
func GetTimePickerValue(view View, subviewID ...string) time.Time {
if len(subviewID) > 0 && subviewID[0] != "" {
view = ViewByID(view, subviewID[0])
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}
if view == nil {
return time.Now()
}
time, _ := getTimeProperty(view, TimePickerValue, Value)
return time
}
// GetTimeChangedListeners returns the TimeChangedListener list of an TimePicker subview.
// If there are no listeners then the empty list is returned
// 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 GetTimeChangedListeners(view View, subviewID ...string) []func(TimePicker, time.Time, time.Time) {
return getEventWithOldListeners[TimePicker, time.Time](view, subviewID, TimeChangedEvent)
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}