Basis of rails-driven app for local business
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// CalendarDateSelect version 1.15 - a prototype based date picker
// Questions, comments, bugs? - see the project page: http://code.google.com/p/calendardateselect
if (typeof Prototype == 'undefined') alert("CalendarDateSelect Error: Prototype could not be found. Please make sure that your application's layout includes prototype.js (.g. <%= javascript_include_tag :defaults %>) *before* it includes calendar_date_select.js (.g. <%= calendar_date_select_includes %>).");
if (Prototype.Version < "1.6") alert("Prototype 1.6.0 is required. If using earlier version of prototype, please use calendar_date_select version 1.8.3");
Element.addMethods({
purgeChildren: function(element) { $A(element.childNodes).each(function(e){$(e).remove();}); },
build: function(element, type, options, style) {
var newElement = Element.buildAndAppend(type, options, style);
element.appendChild(newElement);
return newElement;
}
});
Element.buildAndAppend = function(type, options, style)
{
var e = $(document.createElement(type));
$H(options).each(function(pair) { e[pair.key] = pair.value });
if (style) e.setStyle(style);
return e;
};
nil = null;
Date.one_day = 24*60*60*1000;
Date.weekdays = $w("S M T W T F S");
Date.first_day_of_week = 0;
Date.months = $w("January February March April May June July August September October November December" );
Date.padded2 = function(hour) { var padded2 = parseInt(hour, 10); if (hour < 10) padded2 = "0" + padded2; return padded2; }
Date.prototype.getPaddedMinutes = function() { return Date.padded2(this.getMinutes()); }
Date.prototype.getAMPMHour = function() { var hour = this.getHours(); return (hour == 0) ? 12 : (hour > 12 ? hour - 12 : hour ) }
Date.prototype.getAMPM = function() { return (this.getHours() < 12) ? "AM" : "PM"; }
Date.prototype.stripTime = function() { return new Date(this.getFullYear(), this.getMonth(), this.getDate());};
Date.prototype.daysDistance = function(compare_date) { return Math.round((compare_date - this) / Date.one_day); };
Date.prototype.toFormattedString = function(include_time){
var hour, str;
str = Date.months[this.getMonth()] + " " + this.getDate() + ", " + this.getFullYear();
if (include_time) { hour = this.getHours(); str += " " + this.getAMPMHour() + ":" + this.getPaddedMinutes() + " " + this.getAMPM() }
return str;
}
Date.parseFormattedString = function(string) { return new Date(string);}
Math.floor_to_interval = function(n, i) { return Math.floor(n/i) * i;}
window.f_height = function() { return( [window.innerHeight ? window.innerHeight : null, document.documentElement ? document.documentElement.clientHeight : null, document.body ? document.body.clientHeight : null].select(function(x){return x>0}).first()||0); }
window.f_scrollTop = function() { return ([window.pageYOffset ? window.pageYOffset : null, document.documentElement ? document.documentElement.scrollTop : null, document.body ? document.body.scrollTop : null].select(function(x){return x>0}).first()||0 ); }
_translations = {
"OK": "OK",
"Now": "Now",
"Today": "Today",
"Clear": "Clear"
}
SelectBox = Class.create();
SelectBox.prototype = {
initialize: function(parent_element, values, html_options, style_options) {
this.element = $(parent_element).build("select", html_options, style_options);
this.populate(values);
},
populate: function(values) {
this.element.purgeChildren();
var that = this; $A(values).each(function(pair) { if (typeof(pair)!="object") {pair = [pair, pair]}; that.element.build("option", { value: pair[1], innerHTML: pair[0]}) });
},
setValue: function(value) {
var e = this.element;
var matched = false;
$R(0, e.options.length - 1 ).each(function(i) { if(e.options[i].value==value.toString()) {e.selectedIndex = i; matched = true;}; } );
return matched;
},
getValue: function() { return $F(this.element)}
}
CalendarDateSelect = Class.create();
CalendarDateSelect.prototype = {
initialize: function(target_element, options) {
this.target_element = $(target_element); // make sure it's an element, not a string
if (!this.target_element) { alert("Target element " + target_element + " not found!"); return false;}
if (this.target_element.tagName != "INPUT") this.target_element = this.target_element.down("INPUT")
this.target_element.calendar_date_select = this;
this.last_click_at = 0;
// initialize the date control
this.options = $H({
embedded: false,
popup: nil,
time: false,
buttons: true,
clear_button: true,
year_range: 10,
close_on_click: nil,
minute_interval: 5,
popup_by: this.target_element,
month_year: "dropdowns",
onchange: this.target_element.onchange,
valid_date_check: nil
}).merge(options || {});
this.use_time = this.options.get("time");
this.parseDate();
this.callback("before_show")
this.initCalendarDiv();
if(!this.options.get("embedded")) {
this.positionCalendarDiv()
// set the click handler to check if a user has clicked away from the document
Event.observe(document, "mousedown", this.closeIfClickedOut_handler = this.closeIfClickedOut.bindAsEventListener(this));
Event.observe(document, "keypress", this.keyPress_handler = this.keyPress.bindAsEventListener(this));
}
this.callback("after_show")
},
positionCalendarDiv: function() {
var above = false;
var c_pos = this.calendar_div.cumulativeOffset(), c_left = c_pos[0], c_top = c_pos[1], c_dim = this.calendar_div.getDimensions(), c_height = c_dim.height, c_width = c_dim.width;
var w_top = window.f_scrollTop(), w_height = window.f_height();
var e_dim = $(this.options.get("popup_by")).cumulativeOffset(), e_top = e_dim[1], e_left = e_dim[0], e_height = $(this.options.get("popup_by")).getDimensions().height, e_bottom = e_top + e_height;
if ( (( e_bottom + c_height ) > (w_top + w_height)) && ( e_bottom - c_height > w_top )) above = true;
var left_px = e_left.toString() + "px", top_px = (above ? (e_top - c_height ) : ( e_top + e_height )).toString() + "px";
this.calendar_div.style.left = left_px; this.calendar_div.style.top = top_px;
this.calendar_div.setStyle({visibility:""});
// draw an iframe behind the calendar -- ugly hack to make IE 6 happy
if(navigator.appName=="Microsoft Internet Explorer") this.iframe = $(document.body).build("iframe", {src: "javascript:false", className: "ie6_blocker"}, { left: left_px, top: top_px, height: c_height.toString()+"px", width: c_width.toString()+"px", border: "0px"})
},
initCalendarDiv: function() {
if (this.options.get("embedded")) {
var parent = this.target_element.parentNode;
var style = {}
} else {
var parent = document.body
var style = { position:"absolute", visibility: "hidden", left:0, top:0 }
}
this.calendar_div = $(parent).build('div', {className: "calendar_date_select"}, style);
var that = this;
// create the divs
$w("top header body buttons footer bottom").each(function(name) {
eval("var " + name + "_div = that." + name + "_div = that.calendar_div.build('div', { className: 'cds_"+name+"' }, { clear: 'left'} ); ");
});
this.initHeaderDiv();
this.initButtonsDiv();
this.initCalendarGrid();
this.updateFooter("&#160;");
this.refresh();
this.setUseTime(this.use_time);
},
initHeaderDiv: function() {
var header_div = this.header_div;
this.close_button = header_div.build("a", { innerHTML: "x", href:"#", onclick:function () { this.close(); return false; }.bindAsEventListener(this), className: "close" });
this.next_month_button = header_div.build("a", { innerHTML: "&gt;", href:"#", onclick:function () { this.navMonth(this.date.getMonth() + 1 ); return false; }.bindAsEventListener(this), className: "next" });
this.prev_month_button = header_div.build("a", { innerHTML: "&lt;", href:"#", onclick:function () { this.navMonth(this.date.getMonth() - 1 ); return false; }.bindAsEventListener(this), className: "prev" });
if (this.options.get("month_year")=="dropdowns") {
this.month_select = new SelectBox(header_div, $R(0,11).map(function(m){return [Date.months[m], m]}), {className: "month", onchange: function () { this.navMonth(this.month_select.getValue()) }.bindAsEventListener(this)});
this.year_select = new SelectBox(header_div, [], {className: "year", onchange: function () { this.navYear(this.year_select.getValue()) }.bindAsEventListener(this)});
this.populateYearRange();
} else {
this.month_year_label = header_div.build("span")
}
},
initCalendarGrid: function() {
var body_div = this.body_div;
this.calendar_day_grid = [];
var days_table = body_div.build("table", { cellPadding: "0px", cellSpacing: "0px", width: "100%" })
// make the weekdays!
var weekdays_row = days_table.build("thead").build("tr");
Date.weekdays.each( function(weekday) {
weekdays_row.build("th", {innerHTML: weekday});
});
var days_tbody = days_table.build("tbody")
// Make the days!
var row_number = 0, weekday;
for(var cell_index = 0; cell_index<42; cell_index++)
{
weekday = (cell_index+Date.first_day_of_week ) % 7;
if ( cell_index % 7==0 ) days_row = days_tbody.build("tr", {className: 'row_'+row_number++});
(this.calendar_day_grid[cell_index] = days_row.build("td", {
calendar_date_select: this,
onmouseover: function () { this.calendar_date_select.dayHover(this); },
onmouseout: function () { this.calendar_date_select.dayHoverOut(this) },
onclick: function() { this.calendar_date_select.updateSelectedDate(this, true); },
className: (weekday==0) || (weekday==6) ? " weekend" : "" //clear the class
},
{ cursor: "pointer" }
)).build("div");
this.calendar_day_grid[cell_index];
}
},
initButtonsDiv: function()
{
var buttons_div = this.buttons_div;
if (this.options.get("time"))
{
var blank_time = $A(this.options.get("time")=="mixed" ? [[" - ", ""]] : []);
buttons_div.build("span", {innerHTML:"@", className: "at_sign"});
var t = new Date();
this.hour_select = new SelectBox(buttons_div,
blank_time.concat($R(0,23).map(function(x) {t.setHours(x); return $A([t.getAMPMHour()+ " " + t.getAMPM(),x])} )),
{
calendar_date_select: this,
onchange: function() { this.calendar_date_select.updateSelectedDate( { hour: this.value });},
className: "hour"
}
);
buttons_div.build("span", {innerHTML:":", className: "seperator"});
var that = this;
this.minute_select = new SelectBox(buttons_div,
blank_time.concat($R(0,59).select(function(x){return (x % that.options.get('minute_interval')==0)}).map(function(x){ return $A([ Date.padded2(x), x]); } ) ),
{
calendar_date_select: this,
onchange: function() { this.calendar_date_select.updateSelectedDate( {minute: this.value }) },
className: "minute"
}
);
} else if (! this.options.get("buttons")) buttons_div.remove();
if (this.options.get("buttons")) {
buttons_div.build("span", {innerHTML: "&#160;"});
if (this.options.get("time")=="mixed" || !this.options.get("time")) b = buttons_div.build("a", {
innerHTML: _translations["Today"],
href: "#",
onclick: function() {this.today(false); return false;}.bindAsEventListener(this)
});
if (this.options.get("time")=="mixed") buttons_div.build("span", {innerHTML: "&#160;|&#160;", className:"button_seperator"})
if (this.options.get("time")) b = buttons_div.build("a", {
innerHTML: _translations["Now"],
href: "#",
onclick: function() {this.today(true); return false}.bindAsEventListener(this)
});
if (!this.options.get("embedded") && !this.closeOnClick())
{
buttons_div.build("span", {innerHTML: "&#160;|&#160;", className:"button_seperator"})
buttons_div.build("a", { innerHTML: _translations["OK"], href: "#", onclick: function() {this.close(); return false;}.bindAsEventListener(this) });
}
if (this.options.get('clear_button')) {
buttons_div.build("span", {innerHTML: "&#160;|&#160;", className:"button_seperator"})
buttons_div.build("a", { innerHTML: _translations["Clear"], href: "#", onclick: function() {this.clearDate(); if (!this.options.get("embedded")) this.close(); return false;}.bindAsEventListener(this) });
}
}
},
refresh: function ()
{
this.refreshMonthYear();
this.refreshCalendarGrid();
this.setSelectedClass();
this.updateFooter();
},
refreshCalendarGrid: function () {
this.beginning_date = new Date(this.date).stripTime();
this.beginning_date.setDate(1);
this.beginning_date.setHours(12); // Prevent daylight savings time boundaries from showing a duplicate day
var pre_days = this.beginning_date.getDay() // draw some days before the fact
if (pre_days < 3) pre_days += 7;
this.beginning_date.setDate(1 - pre_days + Date.first_day_of_week);
var iterator = new Date(this.beginning_date);
var today = new Date().stripTime();
var this_month = this.date.getMonth();
vdc = this.options.get("valid_date_check");
for (var cell_index = 0;cell_index<42; cell_index++)
{
day = iterator.getDate(); month = iterator.getMonth();
cell = this.calendar_day_grid[cell_index];
Element.remove(cell.childNodes[0]); div = cell.build("div", {innerHTML:day});
if (month!=this_month) div.className = "other";
cell.day = day; cell.month = month; cell.year = iterator.getFullYear();
if (vdc) { if (vdc(iterator.stripTime())) cell.removeClassName("disabled"); else cell.addClassName("disabled") };
iterator.setDate( day + 1);
}
if (this.today_cell) this.today_cell.removeClassName("today");
if ( $R( 0, 41 ).include(days_until = this.beginning_date.stripTime().daysDistance(today)) ) {
this.today_cell = this.calendar_day_grid[days_until];
this.today_cell.addClassName("today");
}
},
refreshMonthYear: function() {
var m = this.date.getMonth();
var y = this.date.getFullYear();
// set the month
if (this.options.get("month_year") == "dropdowns")
{
this.month_select.setValue(m, false);
var e = this.year_select.element;
if (this.flexibleYearRange() && (!(this.year_select.setValue(y, false)) || e.selectedIndex <= 1 || e.selectedIndex >= e.options.length - 2 )) this.populateYearRange();
this.year_select.setValue(y);
} else {
this.month_year_label.update( Date.months[m] + " " + y.toString() );
}
},
populateYearRange: function() {
this.year_select.populate(this.yearRange().toArray());
},
yearRange: function() {
if (!this.flexibleYearRange())
return $R(this.options.get("year_range")[0], this.options.get("year_range")[1]);
var y = this.date.getFullYear();
return $R(y - this.options.get("year_range"), y + this.options.get("year_range"));
},
flexibleYearRange: function() { return (typeof(this.options.get("year_range")) == "number"); },
validYear: function(year) { if (this.flexibleYearRange()) { return true;} else { return this.yearRange().include(year);} },
dayHover: function(element) {
var hover_date = new Date(this.selected_date);
hover_date.setYear(element.year); hover_date.setMonth(element.month); hover_date.setDate(element.day);
this.updateFooter(hover_date.toFormattedString(this.use_time));
},
dayHoverOut: function(element) { this.updateFooter(); },
clearSelectedClass: function() {if (this.selected_cell) this.selected_cell.removeClassName("selected");},
setSelectedClass: function() {
if (!this.selection_made) return;
this.clearSelectedClass()
if ($R(0,42).include( days_until = this.beginning_date.stripTime().daysDistance(this.selected_date.stripTime()) )) {
this.selected_cell = this.calendar_day_grid[days_until];
this.selected_cell.addClassName("selected");
}
},
reparse: function() { this.parseDate(); this.refresh(); },
dateString: function() {
return (this.selection_made) ? this.selected_date.toFormattedString(this.use_time) : "&#160;";
},
parseDate: function()
{
var value = $F(this.target_element).strip()
this.selection_made = (value != "");
this.date = value=="" ? NaN : Date.parseFormattedString(this.options.get("date") || value);
if (isNaN(this.date)) this.date = new Date();
if (!this.validYear(this.date.getFullYear())) this.date.setYear( (this.date.getFullYear() < this.yearRange().start) ? this.yearRange().start : this.yearRange().end);
this.selected_date = new Date(this.date);
this.use_time = /[0-9]:[0-9]{2}/.exec(value) ? true : false;
this.date.setDate(1);
},
updateFooter:function(text) { if (!text) text = this.dateString(); this.footer_div.purgeChildren(); this.footer_div.build("span", {innerHTML: text }); },
clearDate:function() {
if ((this.target_element.disabled || this.target_element.readOnly) && this.options.get("popup") != "force") return false;
var last_value = this.target_element.value;
this.target_element.value = "";
this.clearSelectedClass();
this.updateFooter('&#160;');
if (last_value!=this.target_element.value) this.callback("onchange");
},
updateSelectedDate:function(partsOrElement, via_click) {
var parts = $H(partsOrElement);
if ((this.target_element.disabled || this.target_element.readOnly) && this.options.get("popup") != "force") return false;
if (parts.get("day")) {
var t_selected_date = this.selected_date, vdc = this.options.get("valid_date_check");
for (var x = 0; x<=3; x++) t_selected_date.setDate(parts.get("day"));
t_selected_date.setYear(parts.get("year"));
t_selected_date.setMonth(parts.get("month"));
if (vdc && ! vdc(t_selected_date.stripTime())) { return false; }
this.selected_date = t_selected_date;
this.selection_made = true;
}
if (!isNaN(parts.get("hour"))) this.selected_date.setHours(parts.get("hour"));
if (!isNaN(parts.get("minute"))) this.selected_date.setMinutes( Math.floor_to_interval(parts.get("minute"), this.options.get("minute_interval")) );
if (parts.get("hour") === "" || parts.get("minute") === "")
this.setUseTime(false);
else if (!isNaN(parts.get("hour")) || !isNaN(parts.get("minute")))
this.setUseTime(true);
this.updateFooter();
this.setSelectedClass();
if (this.selection_made) this.updateValue();
if (this.closeOnClick()) { this.close(); }
if (via_click && !this.options.get("embedded")) {
if ((new Date() - this.last_click_at) < 333) this.close();
this.last_click_at = new Date();
}
},
closeOnClick: function() {
if (this.options.get("embedded")) return false;
if (this.options.get("close_on_click")===nil )
return (this.options.get("time")) ? false : true
else
return (this.options.get("close_on_click"))
},
navMonth: function(month) { (target_date = new Date(this.date)).setMonth(month); return (this.navTo(target_date)); },
navYear: function(year) { (target_date = new Date(this.date)).setYear(year); return (this.navTo(target_date)); },
navTo: function(date) {
if (!this.validYear(date.getFullYear())) return false;
this.date = date;
this.date.setDate(1);
this.refresh();
this.callback("after_navigate", this.date);
return true;
},
setUseTime: function(turn_on) {
this.use_time = this.options.get("time") && (this.options.get("time")=="mixed" ? turn_on : true) // force use_time to true if time==true && time!="mixed"
if (this.use_time && this.selected_date) { // only set hour/minute if a date is already selected
var minute = Math.floor_to_interval(this.selected_date.getMinutes(), this.options.get("minute_interval"));
var hour = this.selected_date.getHours();
this.hour_select.setValue(hour);
this.minute_select.setValue(minute)
} else if (this.options.get("time")=="mixed") {
this.hour_select.setValue(""); this.minute_select.setValue("");
}
},
updateValue: function() {
var last_value = this.target_element.value;
this.target_element.value = this.dateString();
if (last_value!=this.target_element.value) this.callback("onchange");
},
today: function(now) {
var d = new Date(); this.date = new Date();
var o = $H({ day: d.getDate(), month: d.getMonth(), year: d.getFullYear(), hour: d.getHours(), minute: d.getMinutes()});
if ( ! now ) o = o.merge({hour: "", minute:""});
this.updateSelectedDate(o, true);
this.refresh();
},
close: function() {
if (this.closed) return false;
this.callback("before_close");
this.target_element.calendar_date_select = nil;
Event.stopObserving(document, "mousedown", this.closeIfClickedOut_handler);
Event.stopObserving(document, "keypress", this.keyPress_handler);
this.calendar_div.remove(); this.closed = true;
if (this.iframe) this.iframe.remove();
if (this.target_element.type != "hidden" && ! this.target_element.disabled) this.target_element.focus();
this.callback("after_close");
},
closeIfClickedOut: function(e) {
if (! $(Event.element(e)).descendantOf(this.calendar_div) ) this.close();
},
keyPress: function(e) {
if (e.keyCode==Event.KEY_ESC) this.close();
},
callback: function(name, param) { if (this.options.get(name)) { this.options.get(name).bind(this.target_element)(param); } }
}