/* Copyright Mihai Bazon, 2002, 2003 | http://dynarch.com/mishoo/ * --------------------------------------------------------------------------- * * The DHTML Calendar * * Details and latest version at: * http://dynarch.com/mishoo/calendar.epl * * This script is distributed under the GNU Lesser General Public License. * Read the entire license text here: http://www.gnu.org/licenses/lgpl.html * * This file defines helper functions for setting up the calendar. They are * intended to help non-programmers get a working calendar on their site * quickly. This script should not be seen as part of the calendar. It just * shows you what one can do with the calendar, while in the same time * providing a quick and simple method for setting it up. If you need * exhaustive customization of the calendar creation process feel free to * modify this code to suit your needs (this is recommended and much better * than modifying calendar.js itself). */ // $Id: calendar-setup.js,v 1.15 2004/02/04 08:10:03 mishoo Exp $ /** * This function "patches" an input field (or other element) to use a calendar * widget for date selection. * * The "params" is a single object that can have the following properties: * * prop. name | description * ------------------------------------------------------------------------------------------------- * inputField | the ID of an input field to store the date * displayArea | the ID of a DIV or other element to show the date * button | ID of a button or other element that will trigger the calendar * eventName | event that will trigger the calendar, without the "on" prefix (default: "click") * ifFormat | date format that will be stored in the input field * daFormat | the date format that will be used to display the date in displayArea * singleClick | (true/false) wether the calendar is in single click mode or not (default: true) * firstDay | numeric: 0 to 6. "0" means display Sunday first, "1" means display Monday first, etc. * align | alignment (default: "Br"); if you don't know what's this see the calendar documentation * range | array with 2 elements. Default: [1900, 2999] -- the range of years available * weekNumbers | (true/false) if it's true (default) the calendar will display week numbers * flat | null or element ID; if not null the calendar will be a flat calendar having the parent with the given ID * flatCallback | function that receives a JS Date object and returns an URL to point the browser to (for flat calendar) * disableFunc | function that receives a JS Date object and should return true if that date has to be disabled in the calendar * onSelect | function that gets called when a date is selected. You don't _have_ to supply this (the default is generally okay) * onClose | function that gets called when the calendar is closed. [default] * onUpdate | function that gets called after the date is updated in the input field. Receives a reference to the calendar. * date | the date that the calendar will be initially displayed to * showsTime | default: false; if true the calendar will include a time selector * timeFormat | the time format; can be "12" or "24", default is "12" * electric | if true (default) then given fields/date areas are updated for each move; otherwise they're updated only on close * step | configures the step of the years in drop-down boxes; default: 2 * position | configures the calendar absolute position; default: null * cache | if "true" (but default: "false") it will reuse the same calendar object, where possible * showOthers | if "true" (but default: "false") it will show days from other months too * timezone | ERIC: offset in hours of desired timezone * * None of them is required, they all have default values. However, if you * pass none of "inputField", "displayArea" or "button" you'll get a warning * saying "nothing to setup". */ Calendar.setup = function (params) { function param_default(pname, def) { if (typeof params[pname] == "undefined") { params[pname] = def; } }; param_default("inputField", null); param_default("displayArea", null); param_default("button", null); param_default("eventName", "click"); param_default("ifFormat", "%Y/%m/%d"); param_default("daFormat", "%Y/%m/%d"); param_default("singleClick", true); param_default("disableFunc", null); param_default("dateStatusFunc", params["disableFunc"]); // takes precedence if both are defined param_default("firstDay", 0); // defaults to "Sunday" first param_default("align", "Br"); param_default("range", [1900, 2999]); param_default("weekNumbers", false); param_default("flat", null); param_default("flatCallback", null); param_default("onSelect", null); param_default("onClose", null); param_default("onUpdate", null); param_default("date", null); param_default("showsTime", false); param_default("timeFormat", "24"); param_default("electric", true); param_default("step", 2); param_default("position", null); param_default("cache", false); param_default("showOthers", false); param_default("multiple", null); param_default("timezone", -8); // for PST var tmp = ["inputField", "displayArea", "button"]; for (var i in tmp) { if (typeof params[tmp[i]] == "string") { params[tmp[i]] = document.getElementById(params[tmp[i]]); } } if (!(params.flat || params.inputField || params.displayArea || params.button)) { alert("Calendar.setup:\n Nothing to setup (no fields found). Please check your code"); return false; } function onSelect(cal) { var p = cal.params; var update = (cal.dateClicked || p.electric); if (update && p.flat) { if (typeof p.flatCallback == "function") p.flatCallback(cal); else alert("No flatCallback given -- doing nothing."); return false; } //if (update && p.inputField) { if (update && p.inputField && p.singleClick && cal.dateClicked) { p.inputField.value = cal.date.print(p.ifFormat); if (typeof p.inputField.onchange == "function") p.inputField.onchange(); } //if (update && p.displayArea) if (update && p.displayArea && p.singleClick && cal.dateClicked) p.displayArea.innerHTML = cal.date.print(p.daFormat); if (update && p.singleClick && cal.dateClicked) cal.callCloseHandler(); if (update && typeof p.onUpdate == "function") p.onUpdate(cal); }; if (params.flat != null) { if (typeof params.flat == "string") params.flat = document.getElementById(params.flat); if (!params.flat) { alert("Calendar.setup:\n Flat specified but cannot find parent."); return false; } var passDate = new Date(); if (ryear) { passDate.setFullYear(ryear); passDate.setMonth(rmonth); passDate.setDate(rday); } else { // today - forces PST timezone timezoneoffset = passDate.getTimezoneOffset(); if ((navigator.appVersion.indexOf('MSIE 3') != -1)) timezoneoffset = timezoneoffset * (-1); passDate.setTime(passDate.getTime() + timezoneoffset*60*1000); passDate.setTime(passDate.getTime() + params.timezone*60*60*1000); } var cal = new Calendar(params.firstDay, passDate, params.onSelect || onSelect); cal.showsTime = params.showsTime; cal.time24 = (params.timeFormat == "24"); cal.params = params; cal.weekNumbers = params.weekNumbers; cal.setRange(params.range[0], params.range[1]); cal.setDateStatusHandler(params.dateStatusFunc); cal.showsOtherMonths = params.showOthers; cal.setDisabledHandler(function(date, year, month, day) { // verify date and return true if it has to be disabled // ‘‘date’’ is a JS Date object, but if you only need the // year, month and/or day you can get them separately as // next 3 parameters, as you can see in the declaration // if the calendar needs updating without refreshing broswer // then use the following month, day, and year code. The below // code will refresh whenever something happens with calendar. // However, the date for the following code will be determined // by the enduser's computer time. Anyone outsided the PST // timezone could be trying to access non existant code.... var d = new Date(); // forces PST timezone timezoneoffset = d.getTimezoneOffset(); if ((navigator.appVersion.indexOf('MSIE 3') != -1)) timezoneoffset = timezoneoffset * (-1); d.setTime(d.getTime() + timezoneoffset*60*1000); d.setTime(d.getTime() + params.timezone*60*60*1000); xd = d.getDate(); xm = d.getMonth(); xy = d.getFullYear(); //alert(xd); // disable all dates from 2004 // remember to add or change logic for popup calendars below if (year < 2005) { return true; } else if ( year>xy ) { return true; } // all dates before Feb 2005 else if ( month<(2-1) && year<2006 ) { return true; } // all dates before Feb 2005 else if ( day<11 && month<=(2-1) && year<2006 ) { return true; } // all dates before Feb 11, 2005 else if ( month>xm && year>=xy) { return true; } // all dates greater than today in future months else if ( day>xd && month>=xm && year>=xy) { return true; } // all dates greater than today in this month return false; }); cal.create(params.flat); cal.show(); return false; } var triggerEl = params.button || params.displayArea || params.inputField; triggerEl["on" + params.eventName] = function() { var dateEl = params.inputField || params.displayArea; var dateFmt = params.inputField ? params.ifFormat : params.daFormat; var mustCreate = false; var cal = window.calendar; if (!(cal && params.cache)) { window.calendar = cal = new Calendar(params.firstDay, params.date, params.onSelect || onSelect, params.onClose || function(cal) { cal.hide(); }); cal.showsTime = params.showsTime; cal.time24 = (params.timeFormat == "24"); cal.weekNumbers = params.weekNumbers; mustCreate = true; } else { if (params.date) cal.setDate(params.date); cal.hide(); } cal.showsOtherMonths = params.showOthers; cal.yearStep = params.step; cal.setRange(params.range[0], params.range[1]); cal.params = params; // configure it to the calendar // cal.setDateStatusHandler(params.dateStatusFunc); calendar.setDateStatusHandler(dateStatusHandler); cal.setDateFormat(dateFmt); if (mustCreate) cal.create(); cal.parseDate(dateEl.value || dateEl.innerHTML); cal.refresh(); if (!params.position) cal.showAtElement(params.button || params.displayArea || params.inputField, params.align); else cal.showAt(params.position[0], params.position[1]); return false; }; // this table holds your special days, so that we can automatize // things a bit: var SPECIAL_DAYS = { 1 : [ 26 ], // special days in February 5 : [ 25 ], // special days in June 6 : [ 17 ], // special days in July 10 : [ 4 ], // special days in July 11 : [ 25, 29 ] // special days in December }; // this function returns true if the passed date is special function dateIsSpecial(year, month, day) { var m = SPECIAL_DAYS[month]; if (!m) return false; for (var i in m) if (m[i] == day) return true; return false; } // disble dates function disableMyDates(year, month, day) { var d = new Date(); // forces PST timezone timezoneoffset = d.getTimezoneOffset(); if ((navigator.appVersion.indexOf('MSIE 3') != -1)) timezoneoffset = timezoneoffset * (-1); d.setTime(d.getTime() + timezoneoffset*60*1000); d.setTime(d.getTime() + params.timezone*60*60*1000); xd = d.getDate(); xm = d.getMonth(); xy = d.getFullYear(); //alert(xd); // disable all dates from 2004 // remember to add or change logic for popup calendars below if (year < 2005) { return true; } else if ( year>xy ) { return true; } // all dates before Feb 2005 else if ( month<(2-1) && year<2006 ) { return true; } // all dates before Feb 2005 else if ( day<11 && month<=(2-1) && year<2006 ) { return true; } // all dates before Feb 11, 2005 else if ( month>xm && year>=xy) { return true; } // all dates greater than today in future months else if ( day>xd && month>=xm && year>=xy) { return true; } // all dates greater than today in this month return false; } // this is the actual date status handler. Note that it receives the // date object as well as separate values of year, month and date, for // your confort. function dateStatusHandler(date, y, m, d) { // return true above if you want to disable other dates if (disableMyDates(y, m, d)) return true; if (dateIsSpecial(y, m, d)) return "special"; else return false; } };