Pikaday = function()

in server/site/js/pikaday.js [450:673]


    Pikaday = function(options)
    {
        var self = this,
            opts = self.config(options);

        self._onMouseDown = function(e)
        {
            if (!self._v) {
                return;
            }
            e = e || window.event;
            var target = e.target || e.srcElement;
            if (!target) {
                return;
            }

            if (!hasClass(target, 'is-disabled')) {
                if (hasClass(target, 'pika-button') && !hasClass(target, 'is-empty') && !hasClass(target.parentNode, 'is-disabled')) {
                    self.setDate(new Date(target.getAttribute('data-pika-year'), target.getAttribute('data-pika-month'), target.getAttribute('data-pika-day')));
                    if (opts.bound) {
                        sto(function() {
                            self.hide();
                            if (opts.blurFieldOnSelect && opts.field) {
                                opts.field.blur();
                            }
                        }, 100);
                    }
                }
                else if (hasClass(target, 'pika-prev')) {
                    self.prevMonth();
                }
                else if (hasClass(target, 'pika-next')) {
                    self.nextMonth();
                }
            }
            if (!hasClass(target, 'pika-select')) {
                // if this is touch event prevent mouse events emulation
                if (e.preventDefault) {
                    e.preventDefault();
                } else {
                    e.returnValue = false;
                    return false;
                }
            } else {
                self._c = true;
            }
        };

        self._onChange = function(e)
        {
            e = e || window.event;
            var target = e.target || e.srcElement;
            if (!target) {
                return;
            }
            if (hasClass(target, 'pika-select-month')) {
                self.gotoMonth(target.value);
            }
            else if (hasClass(target, 'pika-select-year')) {
                self.gotoYear(target.value);
            }
        };

        self._onKeyChange = function(e)
        {
            e = e || window.event;

            if (self.isVisible()) {

                switch(e.keyCode){
                    case 13:
                    case 27:
                        if (opts.field) {
                            opts.field.blur();
                        }
                        break;
                    case 37:
                        e.preventDefault();
                        self.adjustDate('subtract', 1);
                        break;
                    case 38:
                        self.adjustDate('subtract', 7);
                        break;
                    case 39:
                        self.adjustDate('add', 1);
                        break;
                    case 40:
                        self.adjustDate('add', 7);
                        break;
                }
            }
        };

        self._onInputChange = function(e)
        {
            var date;

            if (e.firedBy === self) {
                return;
            }
            if (opts.parse) {
                date = opts.parse(opts.field.value, opts.format);
            } else if (hasMoment) {
                date = moment(opts.field.value, opts.format, opts.formatStrict);
                date = (date && date.isValid()) ? date.toDate() : null;
            }
            else {
                date = new Date(Date.parse(opts.field.value));
            }
            if (isDate(date)) {
              self.setDate(date);
            }
            if (!self._v) {
                self.show();
            }
        };

        self._onInputFocus = function()
        {
            self.show();
        };

        self._onInputClick = function()
        {
            self.show();
        };

        self._onInputBlur = function()
        {
            // IE allows pika div to gain focus; catch blur the input field
            var pEl = document.activeElement;
            do {
                if (hasClass(pEl, 'pika-single')) {
                    return;
                }
            }
            while ((pEl = pEl.parentNode));

            if (!self._c) {
                self._b = sto(function() {
                    self.hide();
                }, 50);
            }
            self._c = false;
        };

        self._onClick = function(e)
        {
            e = e || window.event;
            var target = e.target || e.srcElement,
                pEl = target;
            if (!target) {
                return;
            }
            if (!hasEventListeners && hasClass(target, 'pika-select')) {
                if (!target.onchange) {
                    target.setAttribute('onchange', 'return;');
                    addEvent(target, 'change', self._onChange);
                }
            }
            do {
                if (hasClass(pEl, 'pika-single') || pEl === opts.trigger) {
                    return;
                }
            }
            while ((pEl = pEl.parentNode));
            if (self._v && target !== opts.trigger && pEl !== opts.trigger) {
                self.hide();
            }
        };

        self.el = document.createElement('div');
        self.el.className = 'pika-single' + (opts.isRTL ? ' is-rtl' : '') + (opts.theme ? ' ' + opts.theme : '');

        addEvent(self.el, 'mousedown', self._onMouseDown, true);
        addEvent(self.el, 'touchend', self._onMouseDown, true);
        addEvent(self.el, 'change', self._onChange);

        if (opts.keyboardInput) {
            addEvent(document, 'keydown', self._onKeyChange);
        }

        if (opts.field) {
            if (opts.container) {
                opts.container.appendChild(self.el);
            } else if (opts.bound) {
                document.body.appendChild(self.el);
            } else {
                opts.field.parentNode.insertBefore(self.el, opts.field.nextSibling);
            }
            addEvent(opts.field, 'change', self._onInputChange);

            if (!opts.defaultDate) {
                if (hasMoment && opts.field.value) {
                    opts.defaultDate = moment(opts.field.value, opts.format).toDate();
                } else {
                    opts.defaultDate = new Date(Date.parse(opts.field.value));
                }
                opts.setDefaultDate = true;
            }
        }

        var defDate = opts.defaultDate;

        if (isDate(defDate)) {
            if (opts.setDefaultDate) {
                self.setDate(defDate, true);
            } else {
                self.gotoDate(defDate);
            }
        } else {
            self.gotoDate(new Date());
        }

        if (opts.bound) {
            this.hide();
            self.el.className += ' is-bound';
            addEvent(opts.trigger, 'click', self._onInputClick);
            addEvent(opts.trigger, 'focus', self._onInputFocus);
            addEvent(opts.trigger, 'blur', self._onInputBlur);
        } else {
            this.show();
        }
    };