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Initial date option #7

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Initial date option #7

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133858f
Add support for specifying initial date instead of today
jarmo Mar 27, 2022
f7de646
Use better values for setting date via options
jarmo Mar 27, 2022
c1f0c28
Add support for specifying initial date with year less than 1970
jarmo Mar 27, 2022
7d2470f
Use even better value for setting initial date
jarmo Mar 27, 2022
44f44ad
Fix today when this.date is provided via options and might not be today
jarmo Jun 20, 2022
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24 changes: 13 additions & 11 deletions CalendarPicker.js
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Original file line number Diff line number Diff line change
Expand Up @@ -18,24 +18,25 @@ if (!Element.prototype.closest) {
*/
function CalendarPicker(element, options) {
// Core variables.
this.date = new Date();
this._formatDateToInit(this.date);
var date = options.date ?
new Date(Math.min(options.max || Infinity,
Math.max(options.min || -Infinity, options.date))
) : new Date();
this.date = this._truncateTime(date);

this.day = this.date.getDay()
this.month = this.date.getMonth();
this.year = this.date.getFullYear();

// Storing the todays date for practical reasons.
this.today = this.date;
this.today = this._truncateTime(new Date());

// The calendars value should always be the current date.
this.value = this.date;

// Ranges for the calendar (optional).
this.min = options.min;
this.max = options.max;
this._formatDateToInit(this.min);
this._formatDateToInit(this.max);
this.min = this._truncateTime(options.min);
this.max = this._truncateTime(options.max);

// Element to insert calendar in.
this.userElement = document.querySelector(element);
Expand Down Expand Up @@ -121,12 +122,13 @@ CalendarPicker.prototype._getDaysInMonth = function (month, year) {
}

/**
* @param {DateObject} date.
* @description Sets the clock of a date to 00:00:00 to be consistent.
* @param {Date} date.
* @return {Date} new date with time set to 00:00:00.
* @description Sets the time of a date to 00:00:00 to be consistent.
*/
CalendarPicker.prototype._formatDateToInit = function (date) {
CalendarPicker.prototype._truncateTime = function (date) {
if (!date) return;
date.setHours(0, 0, 0);
return new Date(date.getFullYear(), date.getMonth(), date.getDate())
}

/**
Expand Down