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jquery.countdown.js
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Wed Jan 15 14:45:11 2014 UTC (10 years, 7 months ago) by
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HEAD
- Update jquery.countdown to 1.6.3
1: /* http://keith-wood.name/countdown.html
2: Countdown for jQuery v1.6.3.
3: Written by Keith Wood (kbwood{at}iinet.com.au) January 2008.
4: Available under the MIT (https://github.com/jquery/jquery/blob/master/MIT-LICENSE.txt) license.
5: Please attribute the author if you use it. */
6:
7: /* Display a countdown timer.
8: Attach it with options like:
9: $('div selector').countdown(
10: {until: new Date(2009, 1 - 1, 1, 0, 0, 0), onExpiry: happyNewYear}); */
11:
12: (function($) { // Hide scope, no $ conflict
13:
14: /* Countdown manager. */
15: function Countdown() {
16: this.regional = []; // Available regional settings, indexed by language code
17: this.regional[''] = { // Default regional settings
18: // The display texts for the counters
19: labels: ['Years', 'Months', 'Weeks', 'Days', 'Hours', 'Minutes', 'Seconds'],
20: // The display texts for the counters if only one
21: labels1: ['Year', 'Month', 'Week', 'Day', 'Hour', 'Minute', 'Second'],
22: compactLabels: ['y', 'm', 'w', 'd'], // The compact texts for the counters
23: whichLabels: null, // Function to determine which labels to use
24: digits: ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9'], // The digits to display
25: timeSeparator: ':', // Separator for time periods
26: isRTL: false // True for right-to-left languages, false for left-to-right
27: };
28: this._defaults = {
29: until: null, // new Date(year, mth - 1, day, hr, min, sec) - date/time to count down to
30: // or numeric for seconds offset, or string for unit offset(s):
31: // 'Y' years, 'O' months, 'W' weeks, 'D' days, 'H' hours, 'M' minutes, 'S' seconds
32: since: null, // new Date(year, mth - 1, day, hr, min, sec) - date/time to count up from
33: // or numeric for seconds offset, or string for unit offset(s):
34: // 'Y' years, 'O' months, 'W' weeks, 'D' days, 'H' hours, 'M' minutes, 'S' seconds
35: timezone: null, // The timezone (hours or minutes from GMT) for the target times,
36: // or null for client local
37: serverSync: null, // A function to retrieve the current server time for synchronisation
38: format: 'dHMS', // Format for display - upper case for always, lower case only if non-zero,
39: // 'Y' years, 'O' months, 'W' weeks, 'D' days, 'H' hours, 'M' minutes, 'S' seconds
40: layout: '', // Build your own layout for the countdown
41: compact: false, // True to display in a compact format, false for an expanded one
42: significant: 0, // The number of periods with values to show, zero for all
43: description: '', // The description displayed for the countdown
44: expiryUrl: '', // A URL to load upon expiry, replacing the current page
45: expiryText: '', // Text to display upon expiry, replacing the countdown
46: alwaysExpire: false, // True to trigger onExpiry even if never counted down
47: onExpiry: null, // Callback when the countdown expires -
48: // receives no parameters and 'this' is the containing division
49: onTick: null, // Callback when the countdown is updated -
50: // receives int[7] being the breakdown by period (based on format)
51: // and 'this' is the containing division
52: tickInterval: 1 // Interval (seconds) between onTick callbacks
53: };
54: $.extend(this._defaults, this.regional['']);
55: this._serverSyncs = [];
56: var now = (typeof Date.now == 'function' ? Date.now :
57: function() { return new Date().getTime(); });
58: var perfAvail = (window.performance && typeof window.performance.now == 'function');
59: // Shared timer for all countdowns
60: function timerCallBack(timestamp) {
61: var drawStart = (timestamp < 1e12 ? // New HTML5 high resolution timer
62: (perfAvail ? (performance.now() + performance.timing.navigationStart) : now()) :
63: // Integer milliseconds since unix epoch
64: timestamp || now());
65: if (drawStart - animationStartTime >= 1000) {
66: plugin._updateTargets();
67: animationStartTime = drawStart;
68: }
69: requestAnimationFrame(timerCallBack);
70: }
71: var requestAnimationFrame = window.requestAnimationFrame ||
72: window.webkitRequestAnimationFrame || window.mozRequestAnimationFrame ||
73: window.oRequestAnimationFrame || window.msRequestAnimationFrame || null;
74: // This is when we expect a fall-back to setInterval as it's much more fluid
75: var animationStartTime = 0;
76: if (!requestAnimationFrame || $.noRequestAnimationFrame) {
77: $.noRequestAnimationFrame = null;
78: setInterval(function() { plugin._updateTargets(); }, 980); // Fall back to good old setInterval
79: }
80: else {
81: animationStartTime = window.animationStartTime ||
82: window.webkitAnimationStartTime || window.mozAnimationStartTime ||
83: window.oAnimationStartTime || window.msAnimationStartTime || now();
84: requestAnimationFrame(timerCallBack);
85: }
86: }
87:
88: var Y = 0; // Years
89: var O = 1; // Months
90: var W = 2; // Weeks
91: var D = 3; // Days
92: var H = 4; // Hours
93: var M = 5; // Minutes
94: var S = 6; // Seconds
95:
96: $.extend(Countdown.prototype, {
97: /* Class name added to elements to indicate already configured with countdown. */
98: markerClassName: 'hasCountdown',
99: /* Name of the data property for instance settings. */
100: propertyName: 'countdown',
101:
102: /* Class name for the right-to-left marker. */
103: _rtlClass: 'countdown_rtl',
104: /* Class name for the countdown section marker. */
105: _sectionClass: 'countdown_section',
106: /* Class name for the period amount marker. */
107: _amountClass: 'countdown_amount',
108: /* Class name for the countdown row marker. */
109: _rowClass: 'countdown_row',
110: /* Class name for the holding countdown marker. */
111: _holdingClass: 'countdown_holding',
112: /* Class name for the showing countdown marker. */
113: _showClass: 'countdown_show',
114: /* Class name for the description marker. */
115: _descrClass: 'countdown_descr',
116:
117: /* List of currently active countdown targets. */
118: _timerTargets: [],
119:
120: /* Override the default settings for all instances of the countdown widget.
121: @param options (object) the new settings to use as defaults */
122: setDefaults: function(options) {
123: this._resetExtraLabels(this._defaults, options);
124: $.extend(this._defaults, options || {});
125: },
126:
127: /* Convert a date/time to UTC.
128: @param tz (number) the hour or minute offset from GMT, e.g. +9, -360
129: @param year (Date) the date/time in that timezone or
130: (number) the year in that timezone
131: @param month (number, optional) the month (0 - 11) (omit if year is a Date)
132: @param day (number, optional) the day (omit if year is a Date)
133: @param hours (number, optional) the hour (omit if year is a Date)
134: @param mins (number, optional) the minute (omit if year is a Date)
135: @param secs (number, optional) the second (omit if year is a Date)
136: @param ms (number, optional) the millisecond (omit if year is a Date)
137: @return (Date) the equivalent UTC date/time */
138: UTCDate: function(tz, year, month, day, hours, mins, secs, ms) {
139: if (typeof year == 'object' && year.constructor == Date) {
140: ms = year.getMilliseconds();
141: secs = year.getSeconds();
142: mins = year.getMinutes();
143: hours = year.getHours();
144: day = year.getDate();
145: month = year.getMonth();
146: year = year.getFullYear();
147: }
148: var d = new Date();
149: d.setUTCFullYear(year);
150: d.setUTCDate(1);
151: d.setUTCMonth(month || 0);
152: d.setUTCDate(day || 1);
153: d.setUTCHours(hours || 0);
154: d.setUTCMinutes((mins || 0) - (Math.abs(tz) < 30 ? tz * 60 : tz));
155: d.setUTCSeconds(secs || 0);
156: d.setUTCMilliseconds(ms || 0);
157: return d;
158: },
159:
160: /* Convert a set of periods into seconds.
161: Averaged for months and years.
162: @param periods (number[7]) the periods per year/month/week/day/hour/minute/second
163: @return (number) the corresponding number of seconds */
164: periodsToSeconds: function(periods) {
165: return periods[0] * 31557600 + periods[1] * 2629800 + periods[2] * 604800 +
166: periods[3] * 86400 + periods[4] * 3600 + periods[5] * 60 + periods[6];
167: },
168:
169: /* Attach the countdown widget to a div.
170: @param target (element) the containing division
171: @param options (object) the initial settings for the countdown */
172: _attachPlugin: function(target, options) {
173: target = $(target);
174: if (target.hasClass(this.markerClassName)) {
175: return;
176: }
177: var inst = {options: $.extend({}, this._defaults), _periods: [0, 0, 0, 0, 0, 0, 0]};
178: target.addClass(this.markerClassName).data(this.propertyName, inst);
179: this._optionPlugin(target, options);
180: },
181:
182: /* Add a target to the list of active ones.
183: @param target (element) the countdown target */
184: _addTarget: function(target) {
185: if (!this._hasTarget(target)) {
186: this._timerTargets.push(target);
187: }
188: },
189:
190: /* See if a target is in the list of active ones.
191: @param target (element) the countdown target
192: @return (boolean) true if present, false if not */
193: _hasTarget: function(target) {
194: return ($.inArray(target, this._timerTargets) > -1);
195: },
196:
197: /* Remove a target from the list of active ones.
198: @param target (element) the countdown target */
199: _removeTarget: function(target) {
200: this._timerTargets = $.map(this._timerTargets,
201: function(value) { return (value == target ? null : value); }); // delete entry
202: },
203:
204: /* Update each active timer target. */
205: _updateTargets: function() {
206: for (var i = this._timerTargets.length - 1; i >= 0; i--) {
207: this._updateCountdown(this._timerTargets[i]);
208: }
209: },
210:
211: /* Reconfigure the settings for a countdown div.
212: @param target (element) the control to affect
213: @param options (object) the new options for this instance or
214: (string) an individual property name
215: @param value (any) the individual property value (omit if options
216: is an object or to retrieve the value of a setting)
217: @return (any) if retrieving a value */
218: _optionPlugin: function(target, options, value) {
219: target = $(target);
220: var inst = target.data(this.propertyName);
221: if (!options || (typeof options == 'string' && value == null)) { // Get option
222: var name = options;
223: options = (inst || {}).options;
224: return (options && name ? options[name] : options);
225: }
226:
227: if (!target.hasClass(this.markerClassName)) {
228: return;
229: }
230: options = options || {};
231: if (typeof options == 'string') {
232: var name = options;
233: options = {};
234: options[name] = value;
235: }
236: if (options.layout) {
237: options.layout = options.layout.replace(/</g, '<').replace(/>/g, '>');
238: }
239: this._resetExtraLabels(inst.options, options);
240: var timezoneChanged = (inst.options.timezone != options.timezone);
241: $.extend(inst.options, options);
242: this._adjustSettings(target, inst,
243: options.until != null || options.since != null || timezoneChanged);
244: var now = new Date();
245: if ((inst._since && inst._since < now) || (inst._until && inst._until > now)) {
246: this._addTarget(target[0]);
247: }
248: this._updateCountdown(target, inst);
249: },
250:
251: /* Redisplay the countdown with an updated display.
252: @param target (jQuery) the containing division
253: @param inst (object) the current settings for this instance */
254: _updateCountdown: function(target, inst) {
255: var $target = $(target);
256: inst = inst || $target.data(this.propertyName);
257: if (!inst) {
258: return;
259: }
260: $target.html(this._generateHTML(inst)).toggleClass(this._rtlClass, inst.options.isRTL);
261: if ($.isFunction(inst.options.onTick)) {
262: var periods = inst._hold != 'lap' ? inst._periods :
263: this._calculatePeriods(inst, inst._show, inst.options.significant, new Date());
264: if (inst.options.tickInterval == 1 ||
265: this.periodsToSeconds(periods) % inst.options.tickInterval == 0) {
266: inst.options.onTick.apply(target, [periods]);
267: }
268: }
269: var expired = inst._hold != 'pause' &&
270: (inst._since ? inst._now.getTime() < inst._since.getTime() :
271: inst._now.getTime() >= inst._until.getTime());
272: if (expired && !inst._expiring) {
273: inst._expiring = true;
274: if (this._hasTarget(target) || inst.options.alwaysExpire) {
275: this._removeTarget(target);
276: if ($.isFunction(inst.options.onExpiry)) {
277: inst.options.onExpiry.apply(target, []);
278: }
279: if (inst.options.expiryText) {
280: var layout = inst.options.layout;
281: inst.options.layout = inst.options.expiryText;
282: this._updateCountdown(target, inst);
283: inst.options.layout = layout;
284: }
285: if (inst.options.expiryUrl) {
286: window.location = inst.options.expiryUrl;
287: }
288: }
289: inst._expiring = false;
290: }
291: else if (inst._hold == 'pause') {
292: this._removeTarget(target);
293: }
294: $target.data(this.propertyName, inst);
295: },
296:
297: /* Reset any extra labelsn and compactLabelsn entries if changing labels.
298: @param base (object) the options to be updated
299: @param options (object) the new option values */
300: _resetExtraLabels: function(base, options) {
301: var changingLabels = false;
302: for (var n in options) {
303: if (n != 'whichLabels' && n.match(/[Ll]abels/)) {
304: changingLabels = true;
305: break;
306: }
307: }
308: if (changingLabels) {
309: for (var n in base) { // Remove custom numbered labels
310: if (n.match(/[Ll]abels[02-9]|compactLabels1/)) {
311: base[n] = null;
312: }
313: }
314: }
315: },
316:
317: /* Calculate interal settings for an instance.
318: @param target (element) the containing division
319: @param inst (object) the current settings for this instance
320: @param recalc (boolean) true if until or since are set */
321: _adjustSettings: function(target, inst, recalc) {
322: var now;
323: var serverOffset = 0;
324: var serverEntry = null;
325: for (var i = 0; i < this._serverSyncs.length; i++) {
326: if (this._serverSyncs[i][0] == inst.options.serverSync) {
327: serverEntry = this._serverSyncs[i][1];
328: break;
329: }
330: }
331: if (serverEntry != null) {
332: serverOffset = (inst.options.serverSync ? serverEntry : 0);
333: now = new Date();
334: }
335: else {
336: var serverResult = ($.isFunction(inst.options.serverSync) ?
337: inst.options.serverSync.apply(target, []) : null);
338: now = new Date();
339: serverOffset = (serverResult ? now.getTime() - serverResult.getTime() : 0);
340: this._serverSyncs.push([inst.options.serverSync, serverOffset]);
341: }
342: var timezone = inst.options.timezone;
343: timezone = (timezone == null ? -now.getTimezoneOffset() : timezone);
344: if (recalc || (!recalc && inst._until == null && inst._since == null)) {
345: inst._since = inst.options.since;
346: if (inst._since != null) {
347: inst._since = this.UTCDate(timezone, this._determineTime(inst._since, null));
348: if (inst._since && serverOffset) {
349: inst._since.setMilliseconds(inst._since.getMilliseconds() + serverOffset);
350: }
351: }
352: inst._until = this.UTCDate(timezone, this._determineTime(inst.options.until, now));
353: if (serverOffset) {
354: inst._until.setMilliseconds(inst._until.getMilliseconds() + serverOffset);
355: }
356: }
357: inst._show = this._determineShow(inst);
358: },
359:
360: /* Remove the countdown widget from a div.
361: @param target (element) the containing division */
362: _destroyPlugin: function(target) {
363: target = $(target);
364: if (!target.hasClass(this.markerClassName)) {
365: return;
366: }
367: this._removeTarget(target[0]);
368: target.removeClass(this.markerClassName).empty().removeData(this.propertyName);
369: },
370:
371: /* Pause a countdown widget at the current time.
372: Stop it running but remember and display the current time.
373: @param target (element) the containing division */
374: _pausePlugin: function(target) {
375: this._hold(target, 'pause');
376: },
377:
378: /* Pause a countdown widget at the current time.
379: Stop the display but keep the countdown running.
380: @param target (element) the containing division */
381: _lapPlugin: function(target) {
382: this._hold(target, 'lap');
383: },
384:
385: /* Resume a paused countdown widget.
386: @param target (element) the containing division */
387: _resumePlugin: function(target) {
388: this._hold(target, null);
389: },
390:
391: /* Pause or resume a countdown widget.
392: @param target (element) the containing division
393: @param hold (string) the new hold setting */
394: _hold: function(target, hold) {
395: var inst = $.data(target, this.propertyName);
396: if (inst) {
397: if (inst._hold == 'pause' && !hold) {
398: inst._periods = inst._savePeriods;
399: var sign = (inst._since ? '-' : '+');
400: inst[inst._since ? '_since' : '_until'] =
401: this._determineTime(sign + inst._periods[0] + 'y' +
402: sign + inst._periods[1] + 'o' + sign + inst._periods[2] + 'w' +
403: sign + inst._periods[3] + 'd' + sign + inst._periods[4] + 'h' +
404: sign + inst._periods[5] + 'm' + sign + inst._periods[6] + 's');
405: this._addTarget(target);
406: }
407: inst._hold = hold;
408: inst._savePeriods = (hold == 'pause' ? inst._periods : null);
409: $.data(target, this.propertyName, inst);
410: this._updateCountdown(target, inst);
411: }
412: },
413:
414: /* Return the current time periods.
415: @param target (element) the containing division
416: @return (number[7]) the current periods for the countdown */
417: _getTimesPlugin: function(target) {
418: var inst = $.data(target, this.propertyName);
419: return (!inst ? null : (inst._hold == 'pause' ? inst._savePeriods : (!inst._hold ? inst._periods :
420: this._calculatePeriods(inst, inst._show, inst.options.significant, new Date()))));
421: },
422:
423: /* A time may be specified as an exact value or a relative one.
424: @param setting (string or number or Date) - the date/time value
425: as a relative or absolute value
426: @param defaultTime (Date) the date/time to use if no other is supplied
427: @return (Date) the corresponding date/time */
428: _determineTime: function(setting, defaultTime) {
429: var offsetNumeric = function(offset) { // e.g. +300, -2
430: var time = new Date();
431: time.setTime(time.getTime() + offset * 1000);
432: return time;
433: };
434: var offsetString = function(offset) { // e.g. '+2d', '-4w', '+3h +30m'
435: offset = offset.toLowerCase();
436: var time = new Date();
437: var year = time.getFullYear();
438: var month = time.getMonth();
439: var day = time.getDate();
440: var hour = time.getHours();
441: var minute = time.getMinutes();
442: var second = time.getSeconds();
443: var pattern = /([+-]?[0-9]+)\s*(s|m|h|d|w|o|y)?/g;
444: var matches = pattern.exec(offset);
445: while (matches) {
446: switch (matches[2] || 's') {
447: case 's': second += parseInt(matches[1], 10); break;
448: case 'm': minute += parseInt(matches[1], 10); break;
449: case 'h': hour += parseInt(matches[1], 10); break;
450: case 'd': day += parseInt(matches[1], 10); break;
451: case 'w': day += parseInt(matches[1], 10) * 7; break;
452: case 'o':
453: month += parseInt(matches[1], 10);
454: day = Math.min(day, plugin._getDaysInMonth(year, month));
455: break;
456: case 'y':
457: year += parseInt(matches[1], 10);
458: day = Math.min(day, plugin._getDaysInMonth(year, month));
459: break;
460: }
461: matches = pattern.exec(offset);
462: }
463: return new Date(year, month, day, hour, minute, second, 0);
464: };
465: var time = (setting == null ? defaultTime :
466: (typeof setting == 'string' ? offsetString(setting) :
467: (typeof setting == 'number' ? offsetNumeric(setting) : setting)));
468: if (time) time.setMilliseconds(0);
469: return time;
470: },
471:
472: /* Determine the number of days in a month.
473: @param year (number) the year
474: @param month (number) the month
475: @return (number) the days in that month */
476: _getDaysInMonth: function(year, month) {
477: return 32 - new Date(year, month, 32).getDate();
478: },
479:
480: /* Determine which set of labels should be used for an amount.
481: @param num (number) the amount to be displayed
482: @return (number) the set of labels to be used for this amount */
483: _normalLabels: function(num) {
484: return num;
485: },
486:
487: /* Generate the HTML to display the countdown widget.
488: @param inst (object) the current settings for this instance
489: @return (string) the new HTML for the countdown display */
490: _generateHTML: function(inst) {
491: var self = this;
492: // Determine what to show
493: inst._periods = (inst._hold ? inst._periods :
494: this._calculatePeriods(inst, inst._show, inst.options.significant, new Date()));
495: // Show all 'asNeeded' after first non-zero value
496: var shownNonZero = false;
497: var showCount = 0;
498: var sigCount = inst.options.significant;
499: var show = $.extend({}, inst._show);
500: for (var period = Y; period <= S; period++) {
501: shownNonZero |= (inst._show[period] == '?' && inst._periods[period] > 0);
502: show[period] = (inst._show[period] == '?' && !shownNonZero ? null : inst._show[period]);
503: showCount += (show[period] ? 1 : 0);
504: sigCount -= (inst._periods[period] > 0 ? 1 : 0);
505: }
506: var showSignificant = [false, false, false, false, false, false, false];
507: for (var period = S; period >= Y; period--) { // Determine significant periods
508: if (inst._show[period]) {
509: if (inst._periods[period]) {
510: showSignificant[period] = true;
511: }
512: else {
513: showSignificant[period] = sigCount > 0;
514: sigCount--;
515: }
516: }
517: }
518: var labels = (inst.options.compact ? inst.options.compactLabels : inst.options.labels);
519: var whichLabels = inst.options.whichLabels || this._normalLabels;
520: var showCompact = function(period) {
521: var labelsNum = inst.options['compactLabels' + whichLabels(inst._periods[period])];
522: return (show[period] ? self._translateDigits(inst, inst._periods[period]) +
523: (labelsNum ? labelsNum[period] : labels[period]) + ' ' : '');
524: };
525: var showFull = function(period) {
526: var labelsNum = inst.options['labels' + whichLabels(inst._periods[period])];
527: return ((!inst.options.significant && show[period]) ||
528: (inst.options.significant && showSignificant[period]) ?
529: '<span class="' + plugin._sectionClass + '">' +
530: '<span class="' + plugin._amountClass + '">' +
531: self._translateDigits(inst, inst._periods[period]) + '</span><br/>' +
532: (labelsNum ? labelsNum[period] : labels[period]) + '</span>' : '');
533: };
534: return (inst.options.layout ? this._buildLayout(inst, show, inst.options.layout,
535: inst.options.compact, inst.options.significant, showSignificant) :
536: ((inst.options.compact ? // Compact version
537: '<span class="' + this._rowClass + ' ' + this._amountClass +
538: (inst._hold ? ' ' + this._holdingClass : '') + '">' +
539: showCompact(Y) + showCompact(O) + showCompact(W) + showCompact(D) +
540: (show[H] ? this._minDigits(inst, inst._periods[H], 2) : '') +
541: (show[M] ? (show[H] ? inst.options.timeSeparator : '') +
542: this._minDigits(inst, inst._periods[M], 2) : '') +
543: (show[S] ? (show[H] || show[M] ? inst.options.timeSeparator : '') +
544: this._minDigits(inst, inst._periods[S], 2) : '') :
545: // Full version
546: '<span class="' + this._rowClass + ' ' + this._showClass + (inst.options.significant || showCount) +
547: (inst._hold ? ' ' + this._holdingClass : '') + '">' +
548: showFull(Y) + showFull(O) + showFull(W) + showFull(D) +
549: showFull(H) + showFull(M) + showFull(S)) + '</span>' +
550: (inst.options.description ? '<span class="' + this._rowClass + ' ' + this._descrClass + '">' +
551: inst.options.description + '</span>' : '')));
552: },
553:
554: /* Construct a custom layout.
555: @param inst (object) the current settings for this instance
556: @param show (string[7]) flags indicating which periods are requested
557: @param layout (string) the customised layout
558: @param compact (boolean) true if using compact labels
559: @param significant (number) the number of periods with values to show, zero for all
560: @param showSignificant (boolean[7]) other periods to show for significance
561: @return (string) the custom HTML */
562: _buildLayout: function(inst, show, layout, compact, significant, showSignificant) {
563: var labels = inst.options[compact ? 'compactLabels' : 'labels'];
564: var whichLabels = inst.options.whichLabels || this._normalLabels;
565: var labelFor = function(index) {
566: return (inst.options[(compact ? 'compactLabels' : 'labels') +
567: whichLabels(inst._periods[index])] || labels)[index];
568: };
569: var digit = function(value, position) {
570: return inst.options.digits[Math.floor(value / position) % 10];
571: };
572: var subs = {desc: inst.options.description, sep: inst.options.timeSeparator,
573: yl: labelFor(Y), yn: this._minDigits(inst, inst._periods[Y], 1),
574: ynn: this._minDigits(inst, inst._periods[Y], 2),
575: ynnn: this._minDigits(inst, inst._periods[Y], 3), y1: digit(inst._periods[Y], 1),
576: y10: digit(inst._periods[Y], 10), y100: digit(inst._periods[Y], 100),
577: y1000: digit(inst._periods[Y], 1000),
578: ol: labelFor(O), on: this._minDigits(inst, inst._periods[O], 1),
579: onn: this._minDigits(inst, inst._periods[O], 2),
580: onnn: this._minDigits(inst, inst._periods[O], 3), o1: digit(inst._periods[O], 1),
581: o10: digit(inst._periods[O], 10), o100: digit(inst._periods[O], 100),
582: o1000: digit(inst._periods[O], 1000),
583: wl: labelFor(W), wn: this._minDigits(inst, inst._periods[W], 1),
584: wnn: this._minDigits(inst, inst._periods[W], 2),
585: wnnn: this._minDigits(inst, inst._periods[W], 3), w1: digit(inst._periods[W], 1),
586: w10: digit(inst._periods[W], 10), w100: digit(inst._periods[W], 100),
587: w1000: digit(inst._periods[W], 1000),
588: dl: labelFor(D), dn: this._minDigits(inst, inst._periods[D], 1),
589: dnn: this._minDigits(inst, inst._periods[D], 2),
590: dnnn: this._minDigits(inst, inst._periods[D], 3), d1: digit(inst._periods[D], 1),
591: d10: digit(inst._periods[D], 10), d100: digit(inst._periods[D], 100),
592: d1000: digit(inst._periods[D], 1000),
593: hl: labelFor(H), hn: this._minDigits(inst, inst._periods[H], 1),
594: hnn: this._minDigits(inst, inst._periods[H], 2),
595: hnnn: this._minDigits(inst, inst._periods[H], 3), h1: digit(inst._periods[H], 1),
596: h10: digit(inst._periods[H], 10), h100: digit(inst._periods[H], 100),
597: h1000: digit(inst._periods[H], 1000),
598: ml: labelFor(M), mn: this._minDigits(inst, inst._periods[M], 1),
599: mnn: this._minDigits(inst, inst._periods[M], 2),
600: mnnn: this._minDigits(inst, inst._periods[M], 3), m1: digit(inst._periods[M], 1),
601: m10: digit(inst._periods[M], 10), m100: digit(inst._periods[M], 100),
602: m1000: digit(inst._periods[M], 1000),
603: sl: labelFor(S), sn: this._minDigits(inst, inst._periods[S], 1),
604: snn: this._minDigits(inst, inst._periods[S], 2),
605: snnn: this._minDigits(inst, inst._periods[S], 3), s1: digit(inst._periods[S], 1),
606: s10: digit(inst._periods[S], 10), s100: digit(inst._periods[S], 100),
607: s1000: digit(inst._periods[S], 1000)};
608: var html = layout;
609: // Replace period containers: {p<}...{p>}
610: for (var i = Y; i <= S; i++) {
611: var period = 'yowdhms'.charAt(i);
612: var re = new RegExp('\\{' + period + '<\\}([\\s\\S]*)\\{' + period + '>\\}', 'g');
613: html = html.replace(re, ((!significant && show[i]) ||
614: (significant && showSignificant[i]) ? '$1' : ''));
615: }
616: // Replace period values: {pn}
617: $.each(subs, function(n, v) {
618: var re = new RegExp('\\{' + n + '\\}', 'g');
619: html = html.replace(re, v);
620: });
621: return html;
622: },
623:
624: /* Ensure a numeric value has at least n digits for display.
625: @param inst (object) the current settings for this instance
626: @param value (number) the value to display
627: @param len (number) the minimum length
628: @return (string) the display text */
629: _minDigits: function(inst, value, len) {
630: value = '' + value;
631: if (value.length >= len) {
632: return this._translateDigits(inst, value);
633: }
634: value = '0000000000' + value;
635: return this._translateDigits(inst, value.substr(value.length - len));
636: },
637:
638: /* Translate digits into other representations.
639: @param inst (object) the current settings for this instance
640: @param value (string) the text to translate
641: @return (string) the translated text */
642: _translateDigits: function(inst, value) {
643: return ('' + value).replace(/[0-9]/g, function(digit) {
644: return inst.options.digits[digit];
645: });
646: },
647:
648: /* Translate the format into flags for each period.
649: @param inst (object) the current settings for this instance
650: @return (string[7]) flags indicating which periods are requested (?) or
651: required (!) by year, month, week, day, hour, minute, second */
652: _determineShow: function(inst) {
653: var format = inst.options.format;
654: var show = [];
655: show[Y] = (format.match('y') ? '?' : (format.match('Y') ? '!' : null));
656: show[O] = (format.match('o') ? '?' : (format.match('O') ? '!' : null));
657: show[W] = (format.match('w') ? '?' : (format.match('W') ? '!' : null));
658: show[D] = (format.match('d') ? '?' : (format.match('D') ? '!' : null));
659: show[H] = (format.match('h') ? '?' : (format.match('H') ? '!' : null));
660: show[M] = (format.match('m') ? '?' : (format.match('M') ? '!' : null));
661: show[S] = (format.match('s') ? '?' : (format.match('S') ? '!' : null));
662: return show;
663: },
664:
665: /* Calculate the requested periods between now and the target time.
666: @param inst (object) the current settings for this instance
667: @param show (string[7]) flags indicating which periods are requested/required
668: @param significant (number) the number of periods with values to show, zero for all
669: @param now (Date) the current date and time
670: @return (number[7]) the current time periods (always positive)
671: by year, month, week, day, hour, minute, second */
672: _calculatePeriods: function(inst, show, significant, now) {
673: // Find endpoints
674: inst._now = now;
675: inst._now.setMilliseconds(0);
676: var until = new Date(inst._now.getTime());
677: if (inst._since) {
678: if (now.getTime() < inst._since.getTime()) {
679: inst._now = now = until;
680: }
681: else {
682: now = inst._since;
683: }
684: }
685: else {
686: until.setTime(inst._until.getTime());
687: if (now.getTime() > inst._until.getTime()) {
688: inst._now = now = until;
689: }
690: }
691: // Calculate differences by period
692: var periods = [0, 0, 0, 0, 0, 0, 0];
693: if (show[Y] || show[O]) {
694: // Treat end of months as the same
695: var lastNow = plugin._getDaysInMonth(now.getFullYear(), now.getMonth());
696: var lastUntil = plugin._getDaysInMonth(until.getFullYear(), until.getMonth());
697: var sameDay = (until.getDate() == now.getDate() ||
698: (until.getDate() >= Math.min(lastNow, lastUntil) &&
699: now.getDate() >= Math.min(lastNow, lastUntil)));
700: var getSecs = function(date) {
701: return (date.getHours() * 60 + date.getMinutes()) * 60 + date.getSeconds();
702: };
703: var months = Math.max(0,
704: (until.getFullYear() - now.getFullYear()) * 12 + until.getMonth() - now.getMonth() +
705: ((until.getDate() < now.getDate() && !sameDay) ||
706: (sameDay && getSecs(until) < getSecs(now)) ? -1 : 0));
707: periods[Y] = (show[Y] ? Math.floor(months / 12) : 0);
708: periods[O] = (show[O] ? months - periods[Y] * 12 : 0);
709: // Adjust for months difference and end of month if necessary
710: now = new Date(now.getTime());
711: var wasLastDay = (now.getDate() == lastNow);
712: var lastDay = plugin._getDaysInMonth(now.getFullYear() + periods[Y],
713: now.getMonth() + periods[O]);
714: if (now.getDate() > lastDay) {
715: now.setDate(lastDay);
716: }
717: now.setFullYear(now.getFullYear() + periods[Y]);
718: now.setMonth(now.getMonth() + periods[O]);
719: if (wasLastDay) {
720: now.setDate(lastDay);
721: }
722: }
723: var diff = Math.floor((until.getTime() - now.getTime()) / 1000);
724: var extractPeriod = function(period, numSecs) {
725: periods[period] = (show[period] ? Math.floor(diff / numSecs) : 0);
726: diff -= periods[period] * numSecs;
727: };
728: extractPeriod(W, 604800);
729: extractPeriod(D, 86400);
730: extractPeriod(H, 3600);
731: extractPeriod(M, 60);
732: extractPeriod(S, 1);
733: if (diff > 0 && !inst._since) { // Round up if left overs
734: var multiplier = [1, 12, 4.3482, 7, 24, 60, 60];
735: var lastShown = S;
736: var max = 1;
737: for (var period = S; period >= Y; period--) {
738: if (show[period]) {
739: if (periods[lastShown] >= max) {
740: periods[lastShown] = 0;
741: diff = 1;
742: }
743: if (diff > 0) {
744: periods[period]++;
745: diff = 0;
746: lastShown = period;
747: max = 1;
748: }
749: }
750: max *= multiplier[period];
751: }
752: }
753: if (significant) { // Zero out insignificant periods
754: for (var period = Y; period <= S; period++) {
755: if (significant && periods[period]) {
756: significant--;
757: }
758: else if (!significant) {
759: periods[period] = 0;
760: }
761: }
762: }
763: return periods;
764: }
765: });
766:
767: // The list of commands that return values and don't permit chaining
768: var getters = ['getTimes'];
769:
770: /* Determine whether a command is a getter and doesn't permit chaining.
771: @param command (string, optional) the command to run
772: @param otherArgs ([], optional) any other arguments for the command
773: @return true if the command is a getter, false if not */
774: function isNotChained(command, otherArgs) {
775: if (command == 'option' && (otherArgs.length == 0 ||
776: (otherArgs.length == 1 && typeof otherArgs[0] == 'string'))) {
777: return true;
778: }
779: return $.inArray(command, getters) > -1;
780: }
781:
782: /* Process the countdown functionality for a jQuery selection.
783: @param options (object) the new settings to use for these instances (optional) or
784: (string) the command to run (optional)
785: @return (jQuery) for chaining further calls or
786: (any) getter value */
787: $.fn.countdown = function(options) {
788: var otherArgs = Array.prototype.slice.call(arguments, 1);
789: if (isNotChained(options, otherArgs)) {
790: return plugin['_' + options + 'Plugin'].
791: apply(plugin, [this[0]].concat(otherArgs));
792: }
793: return this.each(function() {
794: if (typeof options == 'string') {
795: if (!plugin['_' + options + 'Plugin']) {
796: throw 'Unknown command: ' + options;
797: }
798: plugin['_' + options + 'Plugin'].
799: apply(plugin, [this].concat(otherArgs));
800: }
801: else {
802: plugin._attachPlugin(this, options || {});
803: }
804: });
805: };
806:
807: /* Initialise the countdown functionality. */
808: var plugin = $.countdown = new Countdown(); // Singleton instance
809:
810: })(jQuery);
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