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fix: next and previous buttons should let you see the min and max date #48

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fix: next and previous buttons should let you see the min and max date #48

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36 changes: 32 additions & 4 deletions src/Components/DatePickerProvider.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -45,7 +45,6 @@ interface IDatePickerProviderProps {
}

const DatePickerProvider = ({ children, options: customOptions, onChange, show, setShow, selectedDateState }: IDatePickerProviderProps) => {

const options = { ...defaultOptions, ...customOptions }
const [view, setView] = useState<Views>("days")
const [selectedDate, setSelectedDate] = selectedDateState || useState<Date>(options?.defaultDate || new Date())
Expand All @@ -54,10 +53,39 @@ const DatePickerProvider = ({ children, options: customOptions, onChange, show,
const selectedYear = selectedDate.getFullYear()

const changeSelectedDate = (action: "prev" | "next" | "date" | "today", date: Date) => {
if (options?.maxDate && date > options.maxDate) return
if (options?.minDate && date < options.minDate) return
let compareDate = new Date(0)
if (action === "today" || action === "date") {
compareDate = date
} else {
switch (view) {
case "days":
if (action === "prev") compareDate.setFullYear(date.getFullYear(), date.getMonth() + 1, 0) // Last day of the month
if (action === "next") compareDate.setFullYear(date.getFullYear(), date.getMonth(), 1) // First day of the month
break
case "months":
if (action === "prev") compareDate.setFullYear(date.getFullYear(), 12, 0) // December 31st
if (action === "next") compareDate.setFullYear(date.getFullYear(), 0, 1) // January 1st
break
case "years":
if (action === "prev") compareDate.setFullYear(Math.floor(date.getFullYear() / 10) * 10 + 9, 12, 0) // December 31st, ???9
if (action === "next") compareDate.setFullYear(Math.floor(date.getFullYear() / 10) * 10, 0, 1) // January 1st, ???0
break
case "decades":
if (action === "prev") compareDate.setFullYear(Math.floor(date.getFullYear() / 100) * 100 + 99, 12, 0) // December 31st, ??99
if (action === "next") compareDate.setFullYear(Math.floor(date.getFullYear() / 100) * 100, 0, 1) // January 1st, ??00
break
}
}
if (options?.maxDate && compareDate >= options.maxDate) return
if (options?.minDate && compareDate <= options.minDate) return
if (options?.disabledDates && options.disabledDates.indexOf(date) >= 0) return
setSelectedDate(date)
if (options?.maxDate && date > options.maxDate) {
setSelectedDate(new Date(options.maxDate.toString()))
} else if (options?.minDate && date < options.minDate) {
setSelectedDate(new Date(options.minDate.toString()))
} else {
setSelectedDate(date)
}
setShowSelectedDate(true)
if (options?.autoHide && view === "days" && action === "date") setShow(false)
if (onChange) onChange(date)
Expand Down