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-/* http://keith-wood.name/countdown.html
- Countdown for jQuery v1.5.8.
- Written by Keith Wood (kbwood{at}iinet.com.au) January 2008.
- Dual licensed under the GPL (http://dev.jquery.com/browser/trunk/jquery/GPL-LICENSE.txt) and
- MIT (http://dev.jquery.com/browser/trunk/jquery/MIT-LICENSE.txt) licenses.
- Please attribute the author if you use it. */
-
-/* Display a countdown timer.
- Attach it with options like:
- $('div selector').countdown(
- {until: new Date(2009, 1 - 1, 1, 0, 0, 0), onExpiry: happyNewYear}); */
-
-(function($) { // Hide scope, no $ conflict
-
-/* Countdown manager. */
-function Countdown() {
- this.regional = []; // Available regional settings, indexed by language code
- this.regional[''] = { // Default regional settings
- // The display texts for the counters
- labels: ['Years', 'Months', 'Weeks', 'Days', 'Hours', 'Minutes', 'Seconds'],
- // The display texts for the counters if only one
- labels1: ['Year', 'Month', 'Week', 'Day', 'Hour', 'Minute', 'Second'],
- compactLabels: ['y', 'm', 'w', 'd'], // The compact texts for the counters
- whichLabels: null, // Function to determine which labels to use
- timeSeparator: ':', // Separator for time periods
- isRTL: false // True for right-to-left languages, false for left-to-right
- };
- this._defaults = {
- until: null, // new Date(year, mth - 1, day, hr, min, sec) - date/time to count down to
- // or numeric for seconds offset, or string for unit offset(s):
- // 'Y' years, 'O' months, 'W' weeks, 'D' days, 'H' hours, 'M' minutes, 'S' seconds
- since: null, // new Date(year, mth - 1, day, hr, min, sec) - date/time to count up from
- // or numeric for seconds offset, or string for unit offset(s):
- // 'Y' years, 'O' months, 'W' weeks, 'D' days, 'H' hours, 'M' minutes, 'S' seconds
- timezone: null, // The timezone (hours or minutes from GMT) for the target times,
- // or null for client local
- serverSync: null, // A function to retrieve the current server time for synchronisation
- format: 'dHMS', // Format for display - upper case for always, lower case only if non-zero,
- // 'Y' years, 'O' months, 'W' weeks, 'D' days, 'H' hours, 'M' minutes, 'S' seconds
- layout: '', // Build your own layout for the countdown
- compact: false, // True to display in a compact format, false for an expanded one
- significant: 0, // The number of periods with values to show, zero for all
- description: '', // The description displayed for the countdown
- expiryUrl: '', // A URL to load upon expiry, replacing the current page
- expiryText: '', // Text to display upon expiry, replacing the countdown
- alwaysExpire: false, // True to trigger onExpiry even if never counted down
- onExpiry: null, // Callback when the countdown expires -
- // receives no parameters and 'this' is the containing division
- onTick: null, // Callback when the countdown is updated -
- // receives int[7] being the breakdown by period (based on format)
- // and 'this' is the containing division
- tickInterval: 1 // Interval (seconds) between onTick callbacks
- };
- $.extend(this._defaults, this.regional['']);
- this._serverSyncs = [];
-}
-
-var PROP_NAME = 'countdown';
-
-var Y = 0; // Years
-var O = 1; // Months
-var W = 2; // Weeks
-var D = 3; // Days
-var H = 4; // Hours
-var M = 5; // Minutes
-var S = 6; // Seconds
-
-$.extend(Countdown.prototype, {
- /* Class name added to elements to indicate already configured with countdown. */
- markerClassName: 'hasCountdown',
-
- /* Shared timer for all countdowns. */
- _timer: setInterval(function() { $.countdown._updateTargets(); }, 980),
- /* List of currently active countdown targets. */
- _timerTargets: [],
-
- /* Override the default settings for all instances of the countdown widget.
- @param options (object) the new settings to use as defaults */
- setDefaults: function(options) {
- this._resetExtraLabels(this._defaults, options);
- extendRemove(this._defaults, options || {});
- },
-
- /* Convert a date/time to UTC.
- @param tz (number) the hour or minute offset from GMT, e.g. +9, -360
- @param year (Date) the date/time in that timezone or
- (number) the year in that timezone
- @param month (number, optional) the month (0 - 11) (omit if year is a Date)
- @param day (number, optional) the day (omit if year is a Date)
- @param hours (number, optional) the hour (omit if year is a Date)
- @param mins (number, optional) the minute (omit if year is a Date)
- @param secs (number, optional) the second (omit if year is a Date)
- @param ms (number, optional) the millisecond (omit if year is a Date)
- @return (Date) the equivalent UTC date/time */
- UTCDate: function(tz, year, month, day, hours, mins, secs, ms) {
- if (typeof year == 'object' && year.constructor == Date) {
- ms = year.getMilliseconds();
- secs = year.getSeconds();
- mins = year.getMinutes();
- hours = year.getHours();
- day = year.getDate();
- month = year.getMonth();
- year = year.getFullYear();
- }
- var d = new Date();
- d.setUTCFullYear(year);
- d.setUTCDate(1);
- d.setUTCMonth(month || 0);
- d.setUTCDate(day || 1);
- d.setUTCHours(hours || 0);
- d.setUTCMinutes((mins || 0) - (Math.abs(tz) < 30 ? tz * 60 : tz));
- d.setUTCSeconds(secs || 0);
- d.setUTCMilliseconds(ms || 0);
- return d;
- },
-
- /* Convert a set of periods into seconds.
- Averaged for months and years.
- @param periods (number[7]) the periods per year/month/week/day/hour/minute/second
- @return (number) the corresponding number of seconds */
- periodsToSeconds: function(periods) {
- return periods[0] * 31557600 + periods[1] * 2629800 + periods[2] * 604800 +
- periods[3] * 86400 + periods[4] * 3600 + periods[5] * 60 + periods[6];
- },
-
- /* Retrieve one or more settings values.
- @param name (string, optional) the name of the setting to retrieve
- or 'all' for all instance settings or omit for all default settings
- @return (any) the requested setting(s) */
- _settingsCountdown: function(target, name) {
- if (!name) {
- return $.countdown._defaults;
- }
- var inst = $.data(target, PROP_NAME);
- return (name == 'all' ? inst.options : inst.options[name]);
- },
-
- /* Attach the countdown widget to a div.
- @param target (element) the containing division
- @param options (object) the initial settings for the countdown */
- _attachCountdown: function(target, options) {
- var $target = $(target);
- if ($target.hasClass(this.markerClassName)) {
- return;
- }
- $target.addClass(this.markerClassName);
- var inst = {options: $.extend({}, options),
- _periods: [0, 0, 0, 0, 0, 0, 0]};
- $.data(target, PROP_NAME, inst);
- this._changeCountdown(target);
- },
-
- /* Add a target to the list of active ones.
- @param target (element) the countdown target */
- _addTarget: function(target) {
- if (!this._hasTarget(target)) {
- this._timerTargets.push(target);
- }
- },
-
- /* See if a target is in the list of active ones.
- @param target (element) the countdown target
- @return (boolean) true if present, false if not */
- _hasTarget: function(target) {
- return ($.inArray(target, this._timerTargets) > -1);
- },
-
- /* Remove a target from the list of active ones.
- @param target (element) the countdown target */
- _removeTarget: function(target) {
- this._timerTargets = $.map(this._timerTargets,
- function(value) { return (value == target ? null : value); }); // delete entry
- },
-
- /* Update each active timer target. */
- _updateTargets: function() {
- for (var i = this._timerTargets.length - 1; i >= 0; i--) {
- this._updateCountdown(this._timerTargets[i]);
- }
- },
-
- /* Redisplay the countdown with an updated display.
- @param target (jQuery) the containing division
- @param inst (object) the current settings for this instance */
- _updateCountdown: function(target, inst) {
- var $target = $(target);
- inst = inst || $.data(target, PROP_NAME);
- if (!inst) {
- return;
- }
- $target.html(this._generateHTML(inst));
- $target[(this._get(inst, 'isRTL') ? 'add' : 'remove') + 'Class']('countdown_rtl');
- var onTick = this._get(inst, 'onTick');
- if (onTick) {
- var periods = inst._hold != 'lap' ? inst._periods :
- this._calculatePeriods(inst, inst._show, this._get(inst, 'significant'), new Date());
- var tickInterval = this._get(inst, 'tickInterval');
- if (tickInterval == 1 || this.periodsToSeconds(periods) % tickInterval == 0) {
- onTick.apply(target, [periods]);
- }
- }
- var expired = inst._hold != 'pause' &&
- (inst._since ? inst._now.getTime() < inst._since.getTime() :
- inst._now.getTime() >= inst._until.getTime());
- if (expired && !inst._expiring) {
- inst._expiring = true;
- if (this._hasTarget(target) || this._get(inst, 'alwaysExpire')) {
- this._removeTarget(target);
- var onExpiry = this._get(inst, 'onExpiry');
- if (onExpiry) {
- onExpiry.apply(target, []);
- }
- var expiryText = this._get(inst, 'expiryText');
- if (expiryText) {
- var layout = this._get(inst, 'layout');
- inst.options.layout = expiryText;
- this._updateCountdown(target, inst);
- inst.options.layout = layout;
- }
- var expiryUrl = this._get(inst, 'expiryUrl');
- if (expiryUrl) {
- window.location = expiryUrl;
- }
- }
- inst._expiring = false;
- }
- else if (inst._hold == 'pause') {
- this._removeTarget(target);
- }
- $.data(target, PROP_NAME, inst);
- },
-
- /* Reconfigure the settings for a countdown div.
- @param target (element) the containing division
- @param options (object) the new settings for the countdown or
- (string) an individual property name
- @param value (any) the individual property value
- (omit if options is an object) */
- _changeCountdown: function(target, options, value) {
- options = options || {};
- if (typeof options == 'string') {
- var name = options;
- options = {};
- options[name] = value;
- }
- var inst = $.data(target, PROP_NAME);
- if (inst) {
- this._resetExtraLabels(inst.options, options);
- extendRemove(inst.options, options);
- this._adjustSettings(target, inst);
- $.data(target, PROP_NAME, inst);
- var now = new Date();
- if ((inst._since && inst._since < now) ||
- (inst._until && inst._until > now)) {
- this._addTarget(target);
- }
- this._updateCountdown(target, inst);
- }
- },
-
- /* Reset any extra labelsn and compactLabelsn entries if changing labels.
- @param base (object) the options to be updated
- @param options (object) the new option values */
- _resetExtraLabels: function(base, options) {
- var changingLabels = false;
- for (var n in options) {
- if (n != 'whichLabels' && n.match(/[Ll]abels/)) {
- changingLabels = true;
- break;
- }
- }
- if (changingLabels) {
- for (var n in base) { // Remove custom numbered labels
- if (n.match(/[Ll]abels[0-9]/)) {
- base[n] = null;
- }
- }
- }
- },
-
- /* Calculate interal settings for an instance.
- @param target (element) the containing division
- @param inst (object) the current settings for this instance */
- _adjustSettings: function(target, inst) {
- var now;
- var serverSync = this._get(inst, 'serverSync');
- var serverOffset = 0;
- var serverEntry = null;
- for (var i = 0; i < this._serverSyncs.length; i++) {
- if (this._serverSyncs[i][0] == serverSync) {
- serverEntry = this._serverSyncs[i][1];
- break;
- }
- }
- if (serverEntry != null) {
- serverOffset = (serverSync ? serverEntry : 0);
- now = new Date();
- }
- else {
- var serverResult = (serverSync ? serverSync.apply(target, []) : null);
- now = new Date();
- serverOffset = (serverResult ? now.getTime() - serverResult.getTime() : 0);
- this._serverSyncs.push([serverSync, serverOffset]);
- }
- var timezone = this._get(inst, 'timezone');
- timezone = (timezone == null ? -now.getTimezoneOffset() : timezone);
- inst._since = this._get(inst, 'since');
- if (inst._since != null) {
- inst._since = this.UTCDate(timezone, this._determineTime(inst._since, null));
- if (inst._since && serverOffset) {
- inst._since.setMilliseconds(inst._since.getMilliseconds() + serverOffset);
- }
- }
- inst._until = this.UTCDate(timezone, this._determineTime(this._get(inst, 'until'), now));
- if (serverOffset) {
- inst._until.setMilliseconds(inst._until.getMilliseconds() + serverOffset);
- }
- inst._show = this._determineShow(inst);
- },
-
- /* Remove the countdown widget from a div.
- @param target (element) the containing division */
- _destroyCountdown: function(target) {
- var $target = $(target);
- if (!$target.hasClass(this.markerClassName)) {
- return;
- }
- this._removeTarget(target);
- $target.removeClass(this.markerClassName).empty();
- $.removeData(target, PROP_NAME);
- },
-
- /* Pause a countdown widget at the current time.
- Stop it running but remember and display the current time.
- @param target (element) the containing division */
- _pauseCountdown: function(target) {
- this._hold(target, 'pause');
- },
-
- /* Pause a countdown widget at the current time.
- Stop the display but keep the countdown running.
- @param target (element) the containing division */
- _lapCountdown: function(target) {
- this._hold(target, 'lap');
- },
-
- /* Resume a paused countdown widget.
- @param target (element) the containing division */
- _resumeCountdown: function(target) {
- this._hold(target, null);
- },
-
- /* Pause or resume a countdown widget.
- @param target (element) the containing division
- @param hold (string) the new hold setting */
- _hold: function(target, hold) {
- var inst = $.data(target, PROP_NAME);
- if (inst) {
- if (inst._hold == 'pause' && !hold) {
- inst._periods = inst._savePeriods;
- var sign = (inst._since ? '-' : '+');
- inst[inst._since ? '_since' : '_until'] =
- this._determineTime(sign + inst._periods[0] + 'y' +
- sign + inst._periods[1] + 'o' + sign + inst._periods[2] + 'w' +
- sign + inst._periods[3] + 'd' + sign + inst._periods[4] + 'h' +
- sign + inst._periods[5] + 'm' + sign + inst._periods[6] + 's');
- this._addTarget(target);
- }
- inst._hold = hold;
- inst._savePeriods = (hold == 'pause' ? inst._periods : null);
- $.data(target, PROP_NAME, inst);
- this._updateCountdown(target, inst);
- }
- },
-
- /* Return the current time periods.
- @param target (element) the containing division
- @return (number[7]) the current periods for the countdown */
- _getTimesCountdown: function(target) {
- var inst = $.data(target, PROP_NAME);
- return (!inst ? null : (!inst._hold ? inst._periods :
- this._calculatePeriods(inst, inst._show, this._get(inst, 'significant'), new Date())));
- },
-
- /* Get a setting value, defaulting if necessary.
- @param inst (object) the current settings for this instance
- @param name (string) the name of the required setting
- @return (any) the setting's value or a default if not overridden */
- _get: function(inst, name) {
- return (inst.options[name] != null ?
- inst.options[name] : $.countdown._defaults[name]);
- },
-
- /* A time may be specified as an exact value or a relative one.
- @param setting (string or number or Date) - the date/time value
- as a relative or absolute value
- @param defaultTime (Date) the date/time to use if no other is supplied
- @return (Date) the corresponding date/time */
- _determineTime: function(setting, defaultTime) {
- var offsetNumeric = function(offset) { // e.g. +300, -2
- var time = new Date();
- time.setTime(time.getTime() + offset * 1000);
- return time;
- };
- var offsetString = function(offset) { // e.g. '+2d', '-4w', '+3h +30m'
- offset = offset.toLowerCase();
- var time = new Date();
- var year = time.getFullYear();
- var month = time.getMonth();
- var day = time.getDate();
- var hour = time.getHours();
- var minute = time.getMinutes();
- var second = time.getSeconds();
- var pattern = /([+-]?[0-9]+)\s*(s|m|h|d|w|o|y)?/g;
- var matches = pattern.exec(offset);
- while (matches) {
- switch (matches[2] || 's') {
- case 's': second += parseInt(matches[1], 10); break;
- case 'm': minute += parseInt(matches[1], 10); break;
- case 'h': hour += parseInt(matches[1], 10); break;
- case 'd': day += parseInt(matches[1], 10); break;
- case 'w': day += parseInt(matches[1], 10) * 7; break;
- case 'o':
- month += parseInt(matches[1], 10);
- day = Math.min(day, $.countdown._getDaysInMonth(year, month));
- break;
- case 'y':
- year += parseInt(matches[1], 10);
- day = Math.min(day, $.countdown._getDaysInMonth(year, month));
- break;
- }
- matches = pattern.exec(offset);
- }
- return new Date(year, month, day, hour, minute, second, 0);
- };
- var time = (setting == null ? defaultTime :
- (typeof setting == 'string' ? offsetString(setting) :
- (typeof setting == 'number' ? offsetNumeric(setting) : setting)));
- if (time) time.setMilliseconds(0);
- return time;
- },
-
- /* Determine the number of days in a month.
- @param year (number) the year
- @param month (number) the month
- @return (number) the days in that month */
- _getDaysInMonth: function(year, month) {
- return 32 - new Date(year, month, 32).getDate();
- },
-
- /* Determine which set of labels should be used for an amount.
- @param num (number) the amount to be displayed
- @return (number) the set of labels to be used for this amount */
- _normalLabels: function(num) {
- return num;
- },
-
- /* Generate the HTML to display the countdown widget.
- @param inst (object) the current settings for this instance
- @return (string) the new HTML for the countdown display */
- _generateHTML: function(inst) {
- // Determine what to show
- var significant = this._get(inst, 'significant');
- inst._periods = (inst._hold ? inst._periods :
- this._calculatePeriods(inst, inst._show, significant, new Date()));
- // Show all 'asNeeded' after first non-zero value
- var shownNonZero = false;
- var showCount = 0;
- var sigCount = significant;
- var show = $.extend({}, inst._show);
- for (var period = Y; period <= S; period++) {
- shownNonZero |= (inst._show[period] == '?' && inst._periods[period] > 0);
- show[period] = (inst._show[period] == '?' && !shownNonZero ? null : inst._show[period]);
- showCount += (show[period] ? 1 : 0);
- sigCount -= (inst._periods[period] > 0 ? 1 : 0);
- }
- var showSignificant = [false, false, false, false, false, false, false];
- for (var period = S; period >= Y; period--) { // Determine significant periods
- if (inst._show[period]) {
- if (inst._periods[period]) {
- showSignificant[period] = true;
- }
- else {
- showSignificant[period] = sigCount > 0;
- sigCount--;
- }
- }
- }
- var compact = this._get(inst, 'compact');
- var layout = this._get(inst, 'layout');
- var labels = (compact ? this._get(inst, 'compactLabels') : this._get(inst, 'labels'));
- var whichLabels = this._get(inst, 'whichLabels') || this._normalLabels;
- var timeSeparator = this._get(inst, 'timeSeparator');
- var description = this._get(inst, 'description') || '';
- var showCompact = function(period) {
- var labelsNum = $.countdown._get(inst,
- 'compactLabels' + whichLabels(inst._periods[period]));
- return (show[period] ? inst._periods[period] +
- (labelsNum ? labelsNum[period] : labels[period]) + ' ' : '');
- };
- var showFull = function(period) {
- var labelsNum = $.countdown._get(inst, 'labels' + whichLabels(inst._periods[period]));
- return ((!significant && show[period]) || (significant && showSignificant[period]) ?
- '<span class="countdown_section"><span class="countdown_amount">' +
- inst._periods[period] + '</span><br/>' +
- (labelsNum ? labelsNum[period] : labels[period]) + '</span>' : '');
- };
- return (layout ? this._buildLayout(inst, show, layout, compact, significant, showSignificant) :
- ((compact ? // Compact version
- '<span class="countdown_row countdown_amount' +
- (inst._hold ? ' countdown_holding' : '') + '">' +
- showCompact(Y) + showCompact(O) + showCompact(W) + showCompact(D) +
- (show[H] ? this._minDigits(inst._periods[H], 2) : '') +
- (show[M] ? (show[H] ? timeSeparator : '') +
- this._minDigits(inst._periods[M], 2) : '') +
- (show[S] ? (show[H] || show[M] ? timeSeparator : '') +
- this._minDigits(inst._periods[S], 2) : '') :
- // Full version
- '<span class="countdown_row countdown_show' + (significant || showCount) +
- (inst._hold ? ' countdown_holding' : '') + '">' +
- showFull(Y) + showFull(O) + showFull(W) + showFull(D) +
- showFull(H) + showFull(M) + showFull(S)) + '</span>' +
- (description ? '<span class="countdown_row countdown_descr">' + description + '</span>' : '')));
- },
-
- /* Construct a custom layout.
- @param inst (object) the current settings for this instance
- @param show (string[7]) flags indicating which periods are requested
- @param layout (string) the customised layout
- @param compact (boolean) true if using compact labels
- @param significant (number) the number of periods with values to show, zero for all
- @param showSignificant (boolean[7]) other periods to show for significance
- @return (string) the custom HTML */
- _buildLayout: function(inst, show, layout, compact, significant, showSignificant) {
- var labels = this._get(inst, (compact ? 'compactLabels' : 'labels'));
- var whichLabels = this._get(inst, 'whichLabels') || this._normalLabels;
- var labelFor = function(index) {
- return ($.countdown._get(inst,
- (compact ? 'compactLabels' : 'labels') + whichLabels(inst._periods[index])) ||
- labels)[index];
- };
- var digit = function(value, position) {
- return Math.floor(value / position) % 10;
- };
- var subs = {desc: this._get(inst, 'description'), sep: this._get(inst, 'timeSeparator'),
- yl: labelFor(Y), yn: inst._periods[Y], ynn: this._minDigits(inst._periods[Y], 2),
- ynnn: this._minDigits(inst._periods[Y], 3), y1: digit(inst._periods[Y], 1),
- y10: digit(inst._periods[Y], 10), y100: digit(inst._periods[Y], 100),
- y1000: digit(inst._periods[Y], 1000),
- ol: labelFor(O), on: inst._periods[O], onn: this._minDigits(inst._periods[O], 2),
- onnn: this._minDigits(inst._periods[O], 3), o1: digit(inst._periods[O], 1),
- o10: digit(inst._periods[O], 10), o100: digit(inst._periods[O], 100),
- o1000: digit(inst._periods[O], 1000),
- wl: labelFor(W), wn: inst._periods[W], wnn: this._minDigits(inst._periods[W], 2),
- wnnn: this._minDigits(inst._periods[W], 3), w1: digit(inst._periods[W], 1),
- w10: digit(inst._periods[W], 10), w100: digit(inst._periods[W], 100),
- w1000: digit(inst._periods[W], 1000),
- dl: labelFor(D), dn: inst._periods[D], dnn: this._minDigits(inst._periods[D], 2),
- dnnn: this._minDigits(inst._periods[D], 3), d1: digit(inst._periods[D], 1),
- d10: digit(inst._periods[D], 10), d100: digit(inst._periods[D], 100),
- d1000: digit(inst._periods[D], 1000),
- hl: labelFor(H), hn: inst._periods[H], hnn: this._minDigits(inst._periods[H], 2),
- hnnn: this._minDigits(inst._periods[H], 3), h1: digit(inst._periods[H], 1),
- h10: digit(inst._periods[H], 10), h100: digit(inst._periods[H], 100),
- h1000: digit(inst._periods[H], 1000),
- ml: labelFor(M), mn: inst._periods[M], mnn: this._minDigits(inst._periods[M], 2),
- mnnn: this._minDigits(inst._periods[M], 3), m1: digit(inst._periods[M], 1),
- m10: digit(inst._periods[M], 10), m100: digit(inst._periods[M], 100),
- m1000: digit(inst._periods[M], 1000),
- sl: labelFor(S), sn: inst._periods[S], snn: this._minDigits(inst._periods[S], 2),
- snnn: this._minDigits(inst._periods[S], 3), s1: digit(inst._periods[S], 1),
- s10: digit(inst._periods[S], 10), s100: digit(inst._periods[S], 100),
- s1000: digit(inst._periods[S], 1000)};
- var html = layout;
- // Replace period containers: {p<}...{p>}
- for (var i = Y; i <= S; i++) {
- var period = 'yowdhms'.charAt(i);
- var re = new RegExp('\\{' + period + '<\\}(.*)\\{' + period + '>\\}', 'g');
- html = html.replace(re, ((!significant && show[i]) ||
- (significant && showSignificant[i]) ? '$1' : ''));
- }
- // Replace period values: {pn}
- $.each(subs, function(n, v) {
- var re = new RegExp('\\{' + n + '\\}', 'g');
- html = html.replace(re, v);
- });
- return html;
- },
-
- /* Ensure a numeric value has at least n digits for display.
- @param value (number) the value to display
- @param len (number) the minimum length
- @return (string) the display text */
- _minDigits: function(value, len) {
- value = '' + value;
- if (value.length >= len) {
- return value;
- }
- value = '0000000000' + value;
- return value.substr(value.length - len);
- },
-
- /* Translate the format into flags for each period.
- @param inst (object) the current settings for this instance
- @return (string[7]) flags indicating which periods are requested (?) or
- required (!) by year, month, week, day, hour, minute, second */
- _determineShow: function(inst) {
- var format = this._get(inst, 'format');
- var show = [];
- show[Y] = (format.match('y') ? '?' : (format.match('Y') ? '!' : null));
- show[O] = (format.match('o') ? '?' : (format.match('O') ? '!' : null));
- show[W] = (format.match('w') ? '?' : (format.match('W') ? '!' : null));
- show[D] = (format.match('d') ? '?' : (format.match('D') ? '!' : null));
- show[H] = (format.match('h') ? '?' : (format.match('H') ? '!' : null));
- show[M] = (format.match('m') ? '?' : (format.match('M') ? '!' : null));
- show[S] = (format.match('s') ? '?' : (format.match('S') ? '!' : null));
- return show;
- },
-
- /* Calculate the requested periods between now and the target time.
- @param inst (object) the current settings for this instance
- @param show (string[7]) flags indicating which periods are requested/required
- @param significant (number) the number of periods with values to show, zero for all
- @param now (Date) the current date and time
- @return (number[7]) the current time periods (always positive)
- by year, month, week, day, hour, minute, second */
- _calculatePeriods: function(inst, show, significant, now) {
- // Find endpoints
- inst._now = now;
- inst._now.setMilliseconds(0);
- var until = new Date(inst._now.getTime());
- if (inst._since) {
- if (now.getTime() < inst._since.getTime()) {
- inst._now = now = until;
- }
- else {
- now = inst._since;
- }
- }
- else {
- until.setTime(inst._until.getTime());
- if (now.getTime() > inst._until.getTime()) {
- inst._now = now = until;
- }
- }
- // Calculate differences by period
- var periods = [0, 0, 0, 0, 0, 0, 0];
- if (show[Y] || show[O]) {
- // Treat end of months as the same
- var lastNow = $.countdown._getDaysInMonth(now.getFullYear(), now.getMonth());
- var lastUntil = $.countdown._getDaysInMonth(until.getFullYear(), until.getMonth());
- var sameDay = (until.getDate() == now.getDate() ||
- (until.getDate() >= Math.min(lastNow, lastUntil) &&
- now.getDate() >= Math.min(lastNow, lastUntil)));
- var getSecs = function(date) {
- return (date.getHours() * 60 + date.getMinutes()) * 60 + date.getSeconds();
- };
- var months = Math.max(0,
- (until.getFullYear() - now.getFullYear()) * 12 + until.getMonth() - now.getMonth() +
- ((until.getDate() < now.getDate() && !sameDay) ||
- (sameDay && getSecs(until) < getSecs(now)) ? -1 : 0));
- periods[Y] = (show[Y] ? Math.floor(months / 12) : 0);
- periods[O] = (show[O] ? months - periods[Y] * 12 : 0);
- // Adjust for months difference and end of month if necessary
- now = new Date(now.getTime());
- var wasLastDay = (now.getDate() == lastNow);
- var lastDay = $.countdown._getDaysInMonth(now.getFullYear() + periods[Y],
- now.getMonth() + periods[O]);
- if (now.getDate() > lastDay) {
- now.setDate(lastDay);
- }
- now.setFullYear(now.getFullYear() + periods[Y]);
- now.setMonth(now.getMonth() + periods[O]);
- if (wasLastDay) {
- now.setDate(lastDay);
- }
- }
- var diff = Math.floor((until.getTime() - now.getTime()) / 1000);
- var extractPeriod = function(period, numSecs) {
- periods[period] = (show[period] ? Math.floor(diff / numSecs) : 0);
- diff -= periods[period] * numSecs;
- };
- extractPeriod(W, 604800);
- extractPeriod(D, 86400);
- extractPeriod(H, 3600);
- extractPeriod(M, 60);
- extractPeriod(S, 1);
- if (diff > 0 && !inst._since) { // Round up if left overs
- var multiplier = [1, 12, 4.3482, 7, 24, 60, 60];
- var lastShown = S;
- var max = 1;
- for (var period = S; period >= Y; period--) {
- if (show[period]) {
- if (periods[lastShown] >= max) {
- periods[lastShown] = 0;
- diff = 1;
- }
- if (diff > 0) {
- periods[period]++;
- diff = 0;
- lastShown = period;
- max = 1;
- }
- }
- max *= multiplier[period];
- }
- }
- if (significant) { // Zero out insignificant periods
- for (var period = Y; period <= S; period++) {
- if (significant && periods[period]) {
- significant--;
- }
- else if (!significant) {
- periods[period] = 0;
- }
- }
- }
- return periods;
- }
-});
-
-/* jQuery extend now ignores nulls!
- @param target (object) the object to update
- @param props (object) the new settings
- @return (object) the updated object */
-function extendRemove(target, props) {
- $.extend(target, props);
- for (var name in props) {
- if (props[name] == null) {
- target[name] = null;
- }
- }
- return target;
-}
-
-/* Process the countdown functionality for a jQuery selection.
- @param command (string) the command to run (optional, default 'attach')
- @param options (object) the new settings to use for these countdown instances
- @return (jQuery) for chaining further calls */
-$.fn.countdown = function(options) {
- var otherArgs = Array.prototype.slice.call(arguments, 1);
- if (options == 'getTimes' || options == 'settings') {
- return $.countdown['_' + options + 'Countdown'].
- apply($.countdown, [this[0]].concat(otherArgs));
- }
- return this.each(function() {
- if (typeof options == 'string') {
- $.countdown['_' + options + 'Countdown'].apply($.countdown, [this].concat(otherArgs));
- }
- else {
- $.countdown._attachCountdown(this, options);
- }
- });
-};
-
-/* Initialise the countdown functionality. */
-$.countdown = new Countdown(); // singleton instance
-
-})(jQuery);