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/* 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).
*/
// $Id$
/**
* 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
*
* 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("dateTooltipFunc", null);
param_default("dateText", null);
param_default("firstDay", null);
param_default("align", "Br");
param_default("range", [1900, 2999]);
param_default("weekNumbers", true);
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);
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.multiple || 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.inputField) {
p.inputField.value = cal.date.print(p.ifFormat);
if (typeof p.inputField.onchange == "function")
p.inputField.onchange();
}
if (update && p.displayArea)
p.displayArea.innerHTML = cal.date.print(p.daFormat);
if (update && typeof p.onUpdate == "function")
p.onUpdate(cal);
if (update && p.flat) {
if (typeof p.flatCallback == "function")
p.flatCallback(cal);
}
if (update && p.singleClick && cal.dateClicked)
cal.callCloseHandler();
};
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 can't find parent.");
return false;
}
var cal = new Calendar(params.firstDay, params.date, params.onSelect || onSelect);
cal.setDateToolTipHandler(params.dateTooltipFunc);
cal.showsOtherMonths = params.showOthers;
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.getDateText = params.dateText;
if (params.ifFormat) {
cal.setDateFormat(params.ifFormat);
}
if (params.inputField && typeof params.inputField.value == "string") {
cal.parseDate(params.inputField.value);
}
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 (dateEl)
params.date = Date.parseDate(dateEl.value || dateEl.innerHTML, dateFmt);
if (!(cal && params.cache)) {
window.calendar = cal = new Calendar(params.firstDay,
params.date,
params.onSelect || onSelect,
params.onClose || function(cal) { cal.hide(); });
cal.setDateToolTipHandler(params.dateTooltipFunc);
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();
}
if (params.multiple) {
cal.multiple = {};
for (var i = params.multiple.length; --i >= 0;) {
var d = params.multiple[i];
var ds = d.print("%Y%m%d");
cal.multiple[ds] = d;
}
}
cal.showsOtherMonths = params.showOthers;
cal.yearStep = params.step;
cal.setRange(params.range[0], params.range[1]);
cal.params = params;
cal.setDateStatusHandler(params.dateStatusFunc);
cal.getDateText = params.dateText;
cal.setDateFormat(dateFmt);
if (mustCreate)
cal.create();
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;
};
return cal;
};
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