270 lines
12 KiB
JavaScript
270 lines
12 KiB
JavaScript
DateInput = (function ($) {
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function DateInput(el, opts) {
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if (typeof (opts) != "object") opts = {};
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$.extend(this, DateInput.DEFAULT_OPTS, opts);
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this.input = $(el);
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this.bindMethodsToObj("show", "hide", "hideIfClickOutside", "keydownHandler", "selectDate");
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this.build();
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this.selectDate();
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this.hide()
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};
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DateInput.DEFAULT_OPTS = {
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month_names: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
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short_month_names: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"],
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short_day_names: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"],
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start_of_week: 1
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};
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DateInput.prototype = {
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build: function () {
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var monthNav = $('<p class="month_nav">' + '<span class="button prev" title="[Page-Up]">«</span>' + ' <span class="month_name"></span> ' + '<span class="button next" title="[Page-Down]">»</span>' + '</p>');
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this.monthNameSpan = $(".month_name", monthNav);
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$(".prev", monthNav).click(this.bindToObj(function () {
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this.moveMonthBy(-1)
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}));
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$(".next", monthNav).click(this.bindToObj(function () {
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this.moveMonthBy(1)
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}));
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var yearNav = $('<p class="year_nav">' + '<span class="button prev" title="[Ctrl+Page-Up]">«</span>' + ' <span class="year_name"></span> ' + '<span class="button next" title="[Ctrl+Page-Down]">»</span>' + '</p>');
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this.yearNameSpan = $(".year_name", yearNav);
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$(".prev", yearNav).click(this.bindToObj(function () {
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this.moveMonthBy(-12)
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}));
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$(".next", yearNav).click(this.bindToObj(function () {
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this.moveMonthBy(12)
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}));
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var nav = $('<div class="nav"></div>').append(monthNav, yearNav);
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var tableShell = "<table><thead><tr>";
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$(this.adjustDays(this.short_day_names)).each(function () {
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tableShell += "<th>" + this + "</th>"
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});
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tableShell += "</tr></thead><tbody></tbody></table>";
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this.dateSelector = this.rootLayers = $('<div class="date_selector"></div>').append(nav, tableShell).insertAfter(this.input);
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if ($.browser.msie && $.browser.version < 7) {
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this.ieframe = $('<iframe class="date_selector_ieframe" frameborder="0" src="#"></iframe>').insertBefore(this.dateSelector);
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this.rootLayers = this.rootLayers.add(this.ieframe);
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$(".button", nav).mouseover(function () {
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$(this).addClass("hover")
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});
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$(".button", nav).mouseout(function () {
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$(this).removeClass("hover")
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})
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};
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this.tbody = $("tbody", this.dateSelector);
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this.input.change(this.bindToObj(function () {
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this.selectDate()
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}));
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this.selectDate()
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},
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selectMonth: function (date) {
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var newMonth = new Date(date.getFullYear(), date.getMonth(), 1);
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if (!this.currentMonth || !(this.currentMonth.getFullYear() == newMonth.getFullYear() && this.currentMonth.getMonth() == newMonth.getMonth())) {
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this.currentMonth = newMonth;
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var rangeStart = this.rangeStart(date),
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rangeEnd = this.rangeEnd(date);
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var numDays = this.daysBetween(rangeStart, rangeEnd);
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var dayCells = "";
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for (var i = 0; i <= numDays; i++) {
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var currentDay = new Date(rangeStart.getFullYear(), rangeStart.getMonth(), rangeStart.getDate() + i, 12, 00);
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if (this.isFirstDayOfWeek(currentDay)) dayCells += "<tr>";
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if (currentDay.getMonth() == date.getMonth()) {
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dayCells += '<td class="selectable_day" date="' + this.dateToString(currentDay) + '">' + currentDay.getDate() + '</td>'
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} else {
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dayCells += '<td class="unselected_month" date="' + this.dateToString(currentDay) + '">' + currentDay.getDate() + '</td>'
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};
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if (this.isLastDayOfWeek(currentDay)) dayCells += "</tr>"
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};
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this.tbody.empty().append(dayCells);
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this.monthNameSpan.empty().append(this.monthName(date));
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this.yearNameSpan.empty().append(this.currentMonth.getFullYear());
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$(".selectable_day", this.tbody).click(this.bindToObj(function (event) {
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this.changeInput($(event.target).attr("date"))
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}));
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$("td[date=" + this.dateToString(new Date()) + "]", this.tbody).addClass("today");
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$("td.selectable_day", this.tbody).mouseover(function () {
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$(this).addClass("hover")
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});
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$("td.selectable_day", this.tbody).mouseout(function () {
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$(this).removeClass("hover")
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})
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};
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$('.selected', this.tbody).removeClass("selected");
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$('td[date=' + this.selectedDateString + ']', this.tbody).addClass("selected")
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},
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selectDate: function (date) {
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if (typeof (date) == "undefined") {
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date = this.stringToDate(this.input.val())
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};
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if (!date) date = new Date();
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this.selectedDate = date;
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this.selectedDateString = this.dateToString(this.selectedDate);
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this.selectMonth(this.selectedDate)
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},
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changeInput: function (dateString) {
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this.input.val(dateString).change();
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this.hide()
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},
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show: function () {
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this.rootLayers.css("display", "block");
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$([window, document.body]).click(this.hideIfClickOutside);
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this.input.unbind("focus", this.show);
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$(document.body).keydown(this.keydownHandler);
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this.setPosition()
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},
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hide: function () {
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this.rootLayers.css("display", "none");
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$([window, document.body]).unbind("click", this.hideIfClickOutside);
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this.input.focus(this.show);
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$(document.body).unbind("keydown", this.keydownHandler)
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},
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hideIfClickOutside: function (event) {
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if (event.target != this.input[0] && !this.insideSelector(event)) {
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this.hide()
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}
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},
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insideSelector: function (event) {
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var offset = this.dateSelector.position();
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offset.right = offset.left + this.dateSelector.outerWidth();
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offset.bottom = offset.top + this.dateSelector.outerHeight();
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return event.pageY < offset.bottom && event.pageY > offset.top && event.pageX < offset.right && event.pageX > offset.left
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},
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keydownHandler: function (event) {
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switch (event.keyCode) {
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case 9:
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case 27:
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this.hide();
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return;
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break;
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case 13:
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this.changeInput(this.selectedDateString);
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break;
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case 33:
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this.moveDateMonthBy(event.ctrlKey ? -12 : -1);
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break;
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case 34:
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this.moveDateMonthBy(event.ctrlKey ? 12 : 1);
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break;
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case 38:
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this.moveDateBy(-7);
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break;
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case 40:
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this.moveDateBy(7);
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break;
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case 37:
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this.moveDateBy(-1);
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break;
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case 39:
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this.moveDateBy(1);
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break;
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default:
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return
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}
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event.preventDefault()
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},
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stringToDate: function (string) {
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var matches;
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if (matches = string.match(/^(\d{1,2}) ([^\s]+) (\d{4,4})$/)) {
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return new Date(matches[3], this.shortMonthNum(matches[2]), matches[1], 12, 00)
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} else {
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return null
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}
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},
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dateToString: function (date) {
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return date.getDate() + " " + this.short_month_names[date.getMonth()] + " " + date.getFullYear()
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},
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setPosition: function () {
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var offset = this.input.offset();
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this.rootLayers.css({
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top: offset.top + this.input.outerHeight(),
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left: offset.left
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});
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if (this.ieframe) {
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this.ieframe.css({
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width: this.dateSelector.outerWidth(),
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height: this.dateSelector.outerHeight()
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})
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}
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},
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moveDateBy: function (amount) {
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var newDate = new Date(this.selectedDate.getFullYear(), this.selectedDate.getMonth(), this.selectedDate.getDate() + amount);
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this.selectDate(newDate)
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},
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moveDateMonthBy: function (amount) {
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var newDate = new Date(this.selectedDate.getFullYear(), this.selectedDate.getMonth() + amount, this.selectedDate.getDate());
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if (newDate.getMonth() == this.selectedDate.getMonth() + amount + 1) {
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newDate.setDate(0)
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};
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this.selectDate(newDate)
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},
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moveMonthBy: function (amount) {
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var newMonth = new Date(this.currentMonth.getFullYear(), this.currentMonth.getMonth() + amount, this.currentMonth.getDate());
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this.selectMonth(newMonth)
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},
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monthName: function (date) {
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return this.month_names[date.getMonth()]
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},
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bindToObj: function (fn) {
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var self = this;
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return function () {
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return fn.apply(self, arguments)
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}
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},
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bindMethodsToObj: function () {
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for (var i = 0; i < arguments.length; i++) {
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this[arguments[i]] = this.bindToObj(this[arguments[i]])
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}
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},
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indexFor: function (array, value) {
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for (var i = 0; i < array.length; i++) {
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if (value == array[i]) return i
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}
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},
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monthNum: function (month_name) {
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return this.indexFor(this.month_names, month_name)
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},
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shortMonthNum: function (month_name) {
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return this.indexFor(this.short_month_names, month_name)
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},
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shortDayNum: function (day_name) {
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return this.indexFor(this.short_day_names, day_name)
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},
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daysBetween: function (start, end) {
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start = Date.UTC(start.getFullYear(), start.getMonth(), start.getDate());
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end = Date.UTC(end.getFullYear(), end.getMonth(), end.getDate());
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return (end - start) / 86400000
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},
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changeDayTo: function (dayOfWeek, date, direction) {
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var difference = direction * (Math.abs(date.getDay() - dayOfWeek - (direction * 7)) % 7);
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return new Date(date.getFullYear(), date.getMonth(), date.getDate() + difference)
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},
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rangeStart: function (date) {
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return this.changeDayTo(this.start_of_week, new Date(date.getFullYear(), date.getMonth()), -1)
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},
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rangeEnd: function (date) {
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return this.changeDayTo((this.start_of_week - 1) % 7, new Date(date.getFullYear(), date.getMonth() + 1, 0), 1)
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},
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isFirstDayOfWeek: function (date) {
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return date.getDay() == this.start_of_week
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},
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isLastDayOfWeek: function (date) {
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return date.getDay() == (this.start_of_week - 1) % 7
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},
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adjustDays: function (days) {
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var newDays = [];
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for (var i = 0; i < days.length; i++) {
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newDays[i] = days[(i + this.start_of_week) % 7]
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};
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return newDays
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}
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};
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$.fn.date_input = function (opts) {
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return this.each(function () {
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new DateInput(this, opts)
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})
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};
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$.date_input = {
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initialize: function (opts) {
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$("input.date_input").date_input(opts)
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}
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};
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return DateInput
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})(jQuery); |