1 /* Copyright Mihai Bazon, 2002, 2003 | http://dynarch.com/mishoo/
2 * ---------------------------------------------------------------------------
6 * Details and latest version at:
7 * http://dynarch.com/mishoo/calendar.epl
9 * This script is distributed under the GNU Lesser General Public License.
10 * Read the entire license text here: http://www.gnu.org/licenses/lgpl.html
12 * This file defines helper functions for setting up the calendar. They are
13 * intended to help non-programmers get a working calendar on their site
14 * quickly. This script should not be seen as part of the calendar. It just
15 * shows you what one can do with the calendar, while in the same time
16 * providing a quick and simple method for setting it up. If you need
17 * exhaustive customization of the calendar creation process feel free to
18 * modify this code to suit your needs (this is recommended and much better
19 * than modifying calendar.js itself).
23 * This function "patches" an input field (or other element) to use a calendar
24 * widget for date selection.
26 * The "params" is a single object that can have the following properties:
28 * prop. name | description
29 * -------------------------------------------------------------------------------------------------
30 * inputField | the ID of an input field to store the date
31 * displayArea | the ID of a DIV or other element to show the date
32 * button | ID of a button or other element that will trigger the calendar
33 * eventName | event that will trigger the calendar, without the "on" prefix (default: "click")
34 * ifFormat | date format that will be stored in the input field
35 * daFormat | the date format that will be used to display the date in displayArea
36 * singleClick | (true/false) whether the calendar is in single click mode or not (default: true)
37 * firstDay | numeric: 0 to 6. "0" means display Sunday first, "1" means display Monday first, etc.
38 * align | alignment (default: "Br"); if you don't know what's this see the calendar documentation
39 * range | array with 2 elements. Default: [1900, 2999] -- the range of years available
40 * weekNumbers | (true/false) if it's true (default) the calendar will display week numbers
41 * flat | null or element ID; if not null the calendar will be a flat calendar having the parent with the given ID
42 * flatCallback | function that receives a JS Date object and returns an URL to point the browser to (for flat calendar)
43 * disableFunc | function that receives a JS Date object and should return true if that date has to be disabled in the calendar
44 * onSelect | function that gets called when a date is selected. You don't _have_ to supply this (the default is generally okay)
45 * onClose | function that gets called when the calendar is closed. [default]
46 * onUpdate | function that gets called after the date is updated in the input field. Receives a reference to the calendar.
47 * date | the date that the calendar will be initially displayed to
48 * showsTime | default: false; if true the calendar will include a time selector
49 * timeFormat | the time format; can be "12" or "24", default is "12"
50 * electric | if true (default) then given fields/date areas are updated for each move; otherwise they're updated only on close
51 * step | configures the step of the years in drop-down boxes; default: 2
52 * position | configures the calendar absolute position; default: null
53 * cache | if "true" (but default: "false") it will reuse the same calendar object, where possible
54 * showOthers | if "true" (but default: "false") it will show days from other months too
56 * None of them is required, they all have default values. However, if you
57 * pass none of "inputField", "displayArea" or "button" you'll get a warning
58 * saying "nothing to setup".
60 Calendar.setup = function (params) {
61 function param_default(pname, def) { if (typeof params[pname] == "undefined") { params[pname] = def; } };
63 param_default("inputField", null);
64 param_default("displayArea", null);
65 param_default("button", null);
66 param_default("eventName", "click");
67 param_default("ifFormat", "%Y/%m/%d");
68 param_default("daFormat", "%Y/%m/%d");
69 param_default("singleClick", true);
70 param_default("disableFunc", 'dateStatusHandler');
71 param_default("dateStatusFunc", params["disableFunc"]); // takes precedence if both are defined
72 param_default("firstDay", 0); // defaults to "Sunday" first
73 param_default("align", "Br");
74 param_default("range", [1900, 2999]);
75 param_default("weekNumbers", true);
76 param_default("flat", null);
77 param_default("flatCallback", null);
78 param_default("onSelect", null);
79 param_default("onClose", null);
80 param_default("onUpdate", null);
81 param_default("date", null);
82 param_default("showsTime", false);
83 param_default("timeFormat", "24");
84 param_default("electric", true);
85 param_default("step", 2);
86 param_default("position", null);
87 param_default("cache", false);
88 param_default("showOthers", false);
90 var tmp = ["inputField", "displayArea", "button"];
92 if (typeof params[tmp[i]] == "string") {
93 params[tmp[i]] = document.getElementById(params[tmp[i]]);
96 if (!(params.flat || params.inputField || params.displayArea || params.button)) {
97 alert("Calendar.setup:\n Nothing to setup (no fields found). Please check your code");
101 function onSelect(cal) {
103 var update = (cal.dateClicked || p.electric);
104 if (update && p.flat) {
105 if (typeof p.flatCallback == "function")
108 alert("No flatCallback given -- doing nothing.");
111 if (update && p.inputField) {
112 p.inputField.value = cal.date.print(p.ifFormat);
113 if (typeof p.inputField.onchange == "function")
114 p.inputField.onchange();
116 if (update && p.displayArea)
117 p.displayArea.innerHTML = cal.date.print(p.daFormat);
118 if (update && p.singleClick && cal.dateClicked)
119 cal.callCloseHandler();
120 if (update && typeof p.onUpdate == "function")
124 if (params.flat != null) {
125 if (typeof params.flat == "string")
126 params.flat = document.getElementById(params.flat);
128 alert("Calendar.setup:\n Flat specified but can't find parent.");
131 var cal = new Calendar(params.firstDay, params.date, params.onSelect || onSelect);
132 cal.showsTime = params.showsTime;
133 cal.time24 = (params.timeFormat == "24");
135 cal.weekNumbers = params.weekNumbers;
136 cal.setRange(params.range[0], params.range[1]);
137 cal.setDateStatusHandler(params.dateStatusFunc);
138 cal.create(params.flat);
143 var triggerEl = params.button || params.displayArea || params.inputField;
144 triggerEl["on" + params.eventName] = function() {
145 var dateEl = params.inputField || params.displayArea;
146 var dateFmt = params.inputField ? params.ifFormat : params.daFormat;
147 var mustCreate = false;
148 var cal = window.calendar;
149 if (!(cal && params.cache)) {
150 window.calendar = cal = new Calendar(params.firstDay,
152 params.onSelect || onSelect,
153 params.onClose || function(cal) { cal.hide(); });
154 cal.showsTime = params.showsTime;
155 cal.time24 = (params.timeFormat == "24");
156 cal.weekNumbers = params.weekNumbers;
160 cal.setDate(params.date);
163 cal.showsOtherMonths = params.showOthers;
164 cal.yearStep = params.step;
165 cal.setRange(params.range[0], params.range[1]);
167 cal.setDateStatusHandler(params.dateStatusFunc);
168 cal.setDateFormat(dateFmt);
171 cal.parseDate(dateEl.value || dateEl.innerHTML);
173 if (!params.position)
174 cal.showAtElement(params.button || params.displayArea || params.inputField, params.align);
176 cal.showAt(params.position[0], params.position[1]);