/**

[0] Fix | Delete

* Heartbeat API

[1] Fix | Delete

*

[2] Fix | Delete

* Heartbeat is a simple server polling API that sends XHR requests to

[3] Fix | Delete

* the server every 15 - 60 seconds and triggers events (or callbacks) upon

[4] Fix | Delete

* receiving data. Currently these 'ticks' handle transports for post locking,

[5] Fix | Delete

* login-expiration warnings, autosave, and related tasks while a user is logged in.

[6] Fix | Delete

*

[7] Fix | Delete

* Available PHP filters (in ajax-actions.php):

[8] Fix | Delete

* - heartbeat_received

[9] Fix | Delete

* - heartbeat_send

[10] Fix | Delete

* - heartbeat_tick

[11] Fix | Delete

* - heartbeat_nopriv_received

[12] Fix | Delete

* - heartbeat_nopriv_send

[13] Fix | Delete

* - heartbeat_nopriv_tick

[14] Fix | Delete

* @see wp_ajax_nopriv_heartbeat(), wp_ajax_heartbeat()

[15] Fix | Delete

*

[16] Fix | Delete

* Custom jQuery events:

[17] Fix | Delete

* - heartbeat-send

[18] Fix | Delete

* - heartbeat-tick

[19] Fix | Delete

* - heartbeat-error

[20] Fix | Delete

* - heartbeat-connection-lost

[21] Fix | Delete

* - heartbeat-connection-restored

[22] Fix | Delete

* - heartbeat-nonces-expired

[23] Fix | Delete

*

[24] Fix | Delete

* @since 3.6.0

[25] Fix | Delete

* @output wp-includes/js/heartbeat.js

[26] Fix | Delete

*/

[27] Fix | Delete

[28] Fix | Delete

( function( $, window, undefined ) {

[29] Fix | Delete

[30] Fix | Delete

/**

[31] Fix | Delete

* Constructs the Heartbeat API.

[32] Fix | Delete

*

[33] Fix | Delete

* @since 3.6.0

[34] Fix | Delete

*

[35] Fix | Delete

* @return {Object} An instance of the Heartbeat class.

[36] Fix | Delete

* @constructor

[37] Fix | Delete

*/

[38] Fix | Delete

var Heartbeat = function() {

[39] Fix | Delete

var $document = $(document),

[40] Fix | Delete

settings = {

[41] Fix | Delete

// Suspend/resume.

[42] Fix | Delete

suspend: false,

[43] Fix | Delete

[44] Fix | Delete

// Whether suspending is enabled.

[45] Fix | Delete

suspendEnabled: true,

[46] Fix | Delete

[47] Fix | Delete

// Current screen id, defaults to the JS global 'pagenow' when present

[48] Fix | Delete

// (in the admin) or 'front'.

[49] Fix | Delete

screenId: '',

[50] Fix | Delete

[51] Fix | Delete

// XHR request URL, defaults to the JS global 'ajaxurl' when present.

[52] Fix | Delete

url: '',

[53] Fix | Delete

[54] Fix | Delete

// Timestamp, start of the last connection request.

[55] Fix | Delete

lastTick: 0,

[56] Fix | Delete

[57] Fix | Delete

// Container for the enqueued items.

[58] Fix | Delete

queue: {},

[59] Fix | Delete

[60] Fix | Delete

// Connect interval (in seconds).

[61] Fix | Delete

mainInterval: 60,

[62] Fix | Delete

[63] Fix | Delete

// Used when the interval is set to 5 seconds temporarily.

[64] Fix | Delete

tempInterval: 0,

[65] Fix | Delete

[66] Fix | Delete

// Used when the interval is reset.

[67] Fix | Delete

originalInterval: 0,

[68] Fix | Delete

[69] Fix | Delete

// Used to limit the number of Ajax requests.

[70] Fix | Delete

minimalInterval: 0,

[71] Fix | Delete

[72] Fix | Delete

// Used together with tempInterval.

[73] Fix | Delete

countdown: 0,

[74] Fix | Delete

[75] Fix | Delete

// Whether a connection is currently in progress.

[76] Fix | Delete

connecting: false,

[77] Fix | Delete

[78] Fix | Delete

// Whether a connection error occurred.

[79] Fix | Delete

connectionError: false,

[80] Fix | Delete

[81] Fix | Delete

// Used to track non-critical errors.

[82] Fix | Delete

errorcount: 0,

[83] Fix | Delete

[84] Fix | Delete

// Whether at least one connection has been completed successfully.

[85] Fix | Delete

hasConnected: false,

[86] Fix | Delete

[87] Fix | Delete

// Whether the current browser window is in focus and the user is active.

[88] Fix | Delete

hasFocus: true,

[89] Fix | Delete

[90] Fix | Delete

// Timestamp, last time the user was active. Checked every 30 seconds.

[91] Fix | Delete

userActivity: 0,

[92] Fix | Delete

[93] Fix | Delete

// Flag whether events tracking user activity were set.

[94] Fix | Delete

userActivityEvents: false,

[95] Fix | Delete

[96] Fix | Delete

// Timer that keeps track of how long a user has focus.

[97] Fix | Delete

checkFocusTimer: 0,

[98] Fix | Delete

[99] Fix | Delete

// Timer that keeps track of how long needs to be waited before connecting to

[100] Fix | Delete

// the server again.

[101] Fix | Delete

beatTimer: 0

[102] Fix | Delete

};

[103] Fix | Delete

[104] Fix | Delete

/**

[105] Fix | Delete

* Sets local variables and events, then starts the heartbeat.

[106] Fix | Delete

*

[107] Fix | Delete

* @since 3.8.0

[108] Fix | Delete

* @access private

[109] Fix | Delete

*

[110] Fix | Delete

* @return {void}

[111] Fix | Delete

*/

[112] Fix | Delete

function initialize() {

[113] Fix | Delete

var options, hidden, visibilityState, visibilitychange;

[114] Fix | Delete

[115] Fix | Delete

if ( typeof window.pagenow === 'string' ) {

[116] Fix | Delete

settings.screenId = window.pagenow;

[117] Fix | Delete

}

[118] Fix | Delete

[119] Fix | Delete

if ( typeof window.ajaxurl === 'string' ) {

[120] Fix | Delete

settings.url = window.ajaxurl;

[121] Fix | Delete

}

[122] Fix | Delete

[123] Fix | Delete

// Pull in options passed from PHP.

[124] Fix | Delete

if ( typeof window.heartbeatSettings === 'object' ) {

[125] Fix | Delete

options = window.heartbeatSettings;

[126] Fix | Delete

[127] Fix | Delete

// The XHR URL can be passed as option when window.ajaxurl is not set.

[128] Fix | Delete

if ( ! settings.url && options.ajaxurl ) {

[129] Fix | Delete

settings.url = options.ajaxurl;

[130] Fix | Delete

}

[131] Fix | Delete

[132] Fix | Delete

/*

[133] Fix | Delete

* The interval can be from 15 to 120 seconds and can be set temporarily to 5 seconds.

[134] Fix | Delete

* It can be set in the initial options or changed later through JS and/or through PHP.

[135] Fix | Delete

*/

[136] Fix | Delete

if ( options.interval ) {

[137] Fix | Delete

settings.mainInterval = options.interval;

[138] Fix | Delete

[139] Fix | Delete

if ( settings.mainInterval < 15 ) {

[140] Fix | Delete

settings.mainInterval = 15;

[141] Fix | Delete

} else if ( settings.mainInterval > 120 ) {

[142] Fix | Delete

settings.mainInterval = 120;

[143] Fix | Delete

}

[144] Fix | Delete

}

[145] Fix | Delete

[146] Fix | Delete

/*

[147] Fix | Delete

* Used to limit the number of Ajax requests. Overrides all other intervals

[148] Fix | Delete

* if they are shorter. Needed for some hosts that cannot handle frequent requests

[149] Fix | Delete

* and the user may exceed the allocated server CPU time, etc. The minimal interval

[150] Fix | Delete

* can be up to 600 seconds, however setting it to longer than 120 seconds

[151] Fix | Delete

* will limit or disable some of the functionality (like post locks).

[152] Fix | Delete

* Once set at initialization, minimalInterval cannot be changed/overridden.

[153] Fix | Delete

*/

[154] Fix | Delete

if ( options.minimalInterval ) {

[155] Fix | Delete

options.minimalInterval = parseInt( options.minimalInterval, 10 );

[156] Fix | Delete

settings.minimalInterval = options.minimalInterval > 0 && options.minimalInterval <= 600 ? options.minimalInterval * 1000 : 0;

[157] Fix | Delete

}

[158] Fix | Delete

[159] Fix | Delete

if ( settings.minimalInterval && settings.mainInterval < settings.minimalInterval ) {

[160] Fix | Delete

settings.mainInterval = settings.minimalInterval;

[161] Fix | Delete

}

[162] Fix | Delete

[163] Fix | Delete

// 'screenId' can be added from settings on the front end where the JS global

[164] Fix | Delete

// 'pagenow' is not set.

[165] Fix | Delete

if ( ! settings.screenId ) {

[166] Fix | Delete

settings.screenId = options.screenId || 'front';

[167] Fix | Delete

}

[168] Fix | Delete

[169] Fix | Delete

if ( options.suspension === 'disable' ) {

[170] Fix | Delete

settings.suspendEnabled = false;

[171] Fix | Delete

}

[172] Fix | Delete

}

[173] Fix | Delete

[174] Fix | Delete

// Convert to milliseconds.

[175] Fix | Delete

settings.mainInterval = settings.mainInterval * 1000;

[176] Fix | Delete

settings.originalInterval = settings.mainInterval;

[177] Fix | Delete

[178] Fix | Delete

/*

[179] Fix | Delete

* Switch the interval to 120 seconds by using the Page Visibility API.

[180] Fix | Delete

* If the browser doesn't support it (Safari < 7, Android < 4.4, IE < 10), the

[181] Fix | Delete

* interval will be increased to 120 seconds after 5 minutes of mouse and keyboard

[182] Fix | Delete

* inactivity.

[183] Fix | Delete

*/

[184] Fix | Delete

if ( typeof document.hidden !== 'undefined' ) {

[185] Fix | Delete

hidden = 'hidden';

[186] Fix | Delete

visibilitychange = 'visibilitychange';

[187] Fix | Delete

visibilityState = 'visibilityState';

[188] Fix | Delete

} else if ( typeof document.msHidden !== 'undefined' ) { // IE10.

[189] Fix | Delete

hidden = 'msHidden';

[190] Fix | Delete

visibilitychange = 'msvisibilitychange';

[191] Fix | Delete

visibilityState = 'msVisibilityState';

[192] Fix | Delete

} else if ( typeof document.webkitHidden !== 'undefined' ) { // Android.

[193] Fix | Delete

hidden = 'webkitHidden';

[194] Fix | Delete

visibilitychange = 'webkitvisibilitychange';

[195] Fix | Delete

visibilityState = 'webkitVisibilityState';

[196] Fix | Delete

}

[197] Fix | Delete

[198] Fix | Delete

if ( hidden ) {

[199] Fix | Delete

if ( document[hidden] ) {

[200] Fix | Delete

settings.hasFocus = false;

[201] Fix | Delete

}

[202] Fix | Delete

[203] Fix | Delete

$document.on( visibilitychange + '.wp-heartbeat', function() {

[204] Fix | Delete

if ( document[visibilityState] === 'hidden' ) {

[205] Fix | Delete

blurred();

[206] Fix | Delete

window.clearInterval( settings.checkFocusTimer );

[207] Fix | Delete

} else {

[208] Fix | Delete

focused();

[209] Fix | Delete

if ( document.hasFocus ) {

[210] Fix | Delete

settings.checkFocusTimer = window.setInterval( checkFocus, 10000 );

[211] Fix | Delete

}

[212] Fix | Delete

}

[213] Fix | Delete

});

[214] Fix | Delete

}

[215] Fix | Delete

[216] Fix | Delete

// Use document.hasFocus() if available.

[217] Fix | Delete

if ( document.hasFocus ) {

[218] Fix | Delete

settings.checkFocusTimer = window.setInterval( checkFocus, 10000 );

[219] Fix | Delete

}

[220] Fix | Delete

[221] Fix | Delete

$(window).on( 'unload.wp-heartbeat', function() {

[222] Fix | Delete

// Don't connect anymore.

[223] Fix | Delete

settings.suspend = true;

[224] Fix | Delete

[225] Fix | Delete

// Abort the last request if not completed.

[226] Fix | Delete

if ( settings.xhr && settings.xhr.readyState !== 4 ) {

[227] Fix | Delete

settings.xhr.abort();

[228] Fix | Delete

}

[229] Fix | Delete

});

[230] Fix | Delete

[231] Fix | Delete

// Check for user activity every 30 seconds.

[232] Fix | Delete

window.setInterval( checkUserActivity, 30000 );

[233] Fix | Delete

[234] Fix | Delete

// Start one tick after DOM ready.

[235] Fix | Delete

$document.ready( function() {

[236] Fix | Delete

settings.lastTick = time();

[237] Fix | Delete

scheduleNextTick();

[238] Fix | Delete

});

[239] Fix | Delete

}

[240] Fix | Delete

[241] Fix | Delete

/**

[242] Fix | Delete

* Returns the current time according to the browser.

[243] Fix | Delete

*

[244] Fix | Delete

* @since 3.6.0

[245] Fix | Delete

* @access private

[246] Fix | Delete

*

[247] Fix | Delete

* @return {number} Returns the current time.

[248] Fix | Delete

*/

[249] Fix | Delete

function time() {

[250] Fix | Delete

return (new Date()).getTime();

[251] Fix | Delete

}

[252] Fix | Delete

[253] Fix | Delete

/**

[254] Fix | Delete

* Checks if the iframe is from the same origin.

[255] Fix | Delete

*

[256] Fix | Delete

* @since 3.6.0

[257] Fix | Delete

* @access private

[258] Fix | Delete

*

[259] Fix | Delete

* @return {boolean} Returns whether or not the iframe is from the same origin.

[260] Fix | Delete

*/

[261] Fix | Delete

function isLocalFrame( frame ) {

[262] Fix | Delete

var origin, src = frame.src;

[263] Fix | Delete

[264] Fix | Delete

/*

[265] Fix | Delete

* Need to compare strings as WebKit doesn't throw JS errors when iframes have

[266] Fix | Delete

* different origin. It throws uncatchable exceptions.

[267] Fix | Delete

*/

[268] Fix | Delete

if ( src && /^https?:\/\//.test( src ) ) {

[269] Fix | Delete

origin = window.location.origin ? window.location.origin : window.location.protocol + '//' + window.location.host;

[270] Fix | Delete

[271] Fix | Delete

if ( src.indexOf( origin ) !== 0 ) {

[272] Fix | Delete

return false;

[273] Fix | Delete

}

[274] Fix | Delete

}

[275] Fix | Delete

[276] Fix | Delete

try {

[277] Fix | Delete

if ( frame.contentWindow.document ) {

[278] Fix | Delete

return true;

[279] Fix | Delete

}

[280] Fix | Delete

} catch(e) {}

[281] Fix | Delete

[282] Fix | Delete

return false;

[283] Fix | Delete

}

[284] Fix | Delete

[285] Fix | Delete

/**

[286] Fix | Delete

* Checks if the document's focus has changed.

[287] Fix | Delete

*

[288] Fix | Delete

* @since 4.1.0

[289] Fix | Delete

* @access private

[290] Fix | Delete

*

[291] Fix | Delete

* @return {void}

[292] Fix | Delete

*/

[293] Fix | Delete

function checkFocus() {

[294] Fix | Delete

if ( settings.hasFocus && ! document.hasFocus() ) {

[295] Fix | Delete

blurred();

[296] Fix | Delete

} else if ( ! settings.hasFocus && document.hasFocus() ) {

[297] Fix | Delete

focused();

[298] Fix | Delete

}

[299] Fix | Delete

}

[300] Fix | Delete

[301] Fix | Delete

/**

[302] Fix | Delete

* Sets error state and fires an event on XHR errors or timeout.

[303] Fix | Delete

*

[304] Fix | Delete

* @since 3.8.0

[305] Fix | Delete

* @access private

[306] Fix | Delete

*

[307] Fix | Delete

* @param {string} error The error type passed from the XHR.

[308] Fix | Delete

* @param {number} status The HTTP status code passed from jqXHR

[309] Fix | Delete

* (200, 404, 500, etc.).

[310] Fix | Delete

*

[311] Fix | Delete

* @return {void}

[312] Fix | Delete

*/

[313] Fix | Delete

function setErrorState( error, status ) {

[314] Fix | Delete

var trigger;

[315] Fix | Delete

[316] Fix | Delete

if ( error ) {

[317] Fix | Delete

switch ( error ) {

[318] Fix | Delete

case 'abort':

[319] Fix | Delete

// Do nothing.

[320] Fix | Delete

break;

[321] Fix | Delete

case 'timeout':

[322] Fix | Delete

// No response for 30 seconds.

[323] Fix | Delete

trigger = true;

[324] Fix | Delete

break;

[325] Fix | Delete

case 'error':

[326] Fix | Delete

if ( 503 === status && settings.hasConnected ) {

[327] Fix | Delete

trigger = true;

[328] Fix | Delete

break;

[329] Fix | Delete

}

[330] Fix | Delete

/* falls through */

[331] Fix | Delete

case 'parsererror':

[332] Fix | Delete

case 'empty':

[333] Fix | Delete

case 'unknown':

[334] Fix | Delete

settings.errorcount++;

[335] Fix | Delete

[336] Fix | Delete

if ( settings.errorcount > 2 && settings.hasConnected ) {

[337] Fix | Delete

trigger = true;

[338] Fix | Delete

}

[339] Fix | Delete

[340] Fix | Delete

break;

[341] Fix | Delete

}

[342] Fix | Delete

[343] Fix | Delete

if ( trigger && ! hasConnectionError() ) {

[344] Fix | Delete

settings.connectionError = true;

[345] Fix | Delete

$document.trigger( 'heartbeat-connection-lost', [error, status] );

[346] Fix | Delete

wp.hooks.doAction( 'heartbeat.connection-lost', error, status );

[347] Fix | Delete

}

[348] Fix | Delete

}

[349] Fix | Delete

}

[350] Fix | Delete

[351] Fix | Delete

/**

[352] Fix | Delete

* Clears the error state and fires an event if there is a connection error.

[353] Fix | Delete

*

[354] Fix | Delete

* @since 3.8.0

[355] Fix | Delete

* @access private

[356] Fix | Delete

*

[357] Fix | Delete

* @return {void}

[358] Fix | Delete

*/

[359] Fix | Delete

function clearErrorState() {

[360] Fix | Delete

// Has connected successfully.

[361] Fix | Delete

settings.hasConnected = true;

[362] Fix | Delete

[363] Fix | Delete

if ( hasConnectionError() ) {

[364] Fix | Delete

settings.errorcount = 0;

[365] Fix | Delete

settings.connectionError = false;

[366] Fix | Delete

$document.trigger( 'heartbeat-connection-restored' );

[367] Fix | Delete

wp.hooks.doAction( 'heartbeat.connection-restored' );

[368] Fix | Delete

}

[369] Fix | Delete

}

[370] Fix | Delete

[371] Fix | Delete

/**

[372] Fix | Delete

* Gathers the data and connects to the server.

[373] Fix | Delete

*

[374] Fix | Delete

* @since 3.6.0

[375] Fix | Delete

* @access private

[376] Fix | Delete

*

[377] Fix | Delete

* @return {void}

[378] Fix | Delete

*/

[379] Fix | Delete

function connect() {

[380] Fix | Delete

var ajaxData, heartbeatData;

[381] Fix | Delete

[382] Fix | Delete

// If the connection to the server is slower than the interval,

[383] Fix | Delete

// heartbeat connects as soon as the previous connection's response is received.

[384] Fix | Delete

if ( settings.connecting || settings.suspend ) {

[385] Fix | Delete

return;

[386] Fix | Delete

}

[387] Fix | Delete

[388] Fix | Delete

settings.lastTick = time();

[389] Fix | Delete

[390] Fix | Delete

heartbeatData = $.extend( {}, settings.queue );

[391] Fix | Delete

// Clear the data queue. Anything added after this point will be sent on the next tick.

[392] Fix | Delete

settings.queue = {};

[393] Fix | Delete

[394] Fix | Delete

$document.trigger( 'heartbeat-send', [ heartbeatData ] );

[395] Fix | Delete

wp.hooks.doAction( 'heartbeat.send', heartbeatData );

[396] Fix | Delete

[397] Fix | Delete

ajaxData = {

[398] Fix | Delete

data: heartbeatData,

[399] Fix | Delete

interval: settings.tempInterval ? settings.tempInterval / 1000 : settings.mainInterval / 1000,

[400] Fix | Delete

_nonce: typeof window.heartbeatSettings === 'object' ? window.heartbeatSettings.nonce : '',

[401] Fix | Delete

action: 'heartbeat',

[402] Fix | Delete

screen_id: settings.screenId,

[403] Fix | Delete

has_focus: settings.hasFocus

[404] Fix | Delete

};

[405] Fix | Delete

[406] Fix | Delete

if ( 'customize' === settings.screenId ) {

[407] Fix | Delete

ajaxData.wp_customize = 'on';

[408] Fix | Delete

}

[409] Fix | Delete

[410] Fix | Delete

settings.connecting = true;

[411] Fix | Delete

settings.xhr = $.ajax({

[412] Fix | Delete

url: settings.url,

[413] Fix | Delete

type: 'post',

[414] Fix | Delete

timeout: 30000, // Throw an error if not completed after 30 seconds.

[415] Fix | Delete

data: ajaxData,

[416] Fix | Delete

dataType: 'json'

[417] Fix | Delete

}).always( function() {

[418] Fix | Delete

settings.connecting = false;

[419] Fix | Delete

scheduleNextTick();

[420] Fix | Delete

}).done( function( response, textStatus, jqXHR ) {

[421] Fix | Delete

var newInterval;

[422] Fix | Delete

[423] Fix | Delete

if ( ! response ) {

[424] Fix | Delete

setErrorState( 'empty' );

[425] Fix | Delete

return;

[426] Fix | Delete

}

[427] Fix | Delete

[428] Fix | Delete

clearErrorState();

[429] Fix | Delete

[430] Fix | Delete

if ( response.nonces_expired ) {

[431] Fix | Delete

$document.trigger( 'heartbeat-nonces-expired' );

[432] Fix | Delete

wp.hooks.doAction( 'heartbeat.nonces-expired' );

[433] Fix | Delete

}

[434] Fix | Delete

[435] Fix | Delete

// Change the interval from PHP.

[436] Fix | Delete

if ( response.heartbeat_interval ) {

[437] Fix | Delete

newInterval = response.heartbeat_interval;

[438] Fix | Delete

delete response.heartbeat_interval;

[439] Fix | Delete

}

[440] Fix | Delete

[441] Fix | Delete

// Update the heartbeat nonce if set.

[442] Fix | Delete

if ( response.heartbeat_nonce && typeof window.heartbeatSettings === 'object' ) {

[443] Fix | Delete

window.heartbeatSettings.nonce = response.heartbeat_nonce;

[444] Fix | Delete

delete response.heartbeat_nonce;

[445] Fix | Delete

}

[446] Fix | Delete

[447] Fix | Delete

// Update the Rest API nonce if set and wp-api loaded.

[448] Fix | Delete

if ( response.rest_nonce && typeof window.wpApiSettings === 'object' ) {

[449] Fix | Delete

window.wpApiSettings.nonce = response.rest_nonce;

[450] Fix | Delete

// This nonce is required for api-fetch through heartbeat.tick.

[451] Fix | Delete

// delete response.rest_nonce;

[452] Fix | Delete

}

[453] Fix | Delete

[454] Fix | Delete

$document.trigger( 'heartbeat-tick', [response, textStatus, jqXHR] );

[455] Fix | Delete

wp.hooks.doAction( 'heartbeat.tick', response, textStatus, jqXHR );

[456] Fix | Delete

[457] Fix | Delete

// Do this last. Can trigger the next XHR if connection time > 5 seconds and newInterval == 'fast'.

[458] Fix | Delete

if ( newInterval ) {

[459] Fix | Delete

interval( newInterval );

[460] Fix | Delete

}

[461] Fix | Delete

}).fail( function( jqXHR, textStatus, error ) {

[462] Fix | Delete

setErrorState( textStatus || 'unknown', jqXHR.status );

[463] Fix | Delete

$document.trigger( 'heartbeat-error', [jqXHR, textStatus, error] );

[464] Fix | Delete

wp.hooks.doAction( 'heartbeat.error', jqXHR, textStatus, error );

[465] Fix | Delete

});

[466] Fix | Delete

}

[467] Fix | Delete

[468] Fix | Delete

/**

[469] Fix | Delete

* Schedules the next connection.

[470] Fix | Delete

*

[471] Fix | Delete

* Fires immediately if the connection time is longer than the interval.

[472] Fix | Delete

*

[473] Fix | Delete

* @since 3.8.0

[474] Fix | Delete

* @access private

[475] Fix | Delete

*

[476] Fix | Delete

* @return {void}

[477] Fix | Delete

*/

[478] Fix | Delete

function scheduleNextTick() {

[479] Fix | Delete

var delta = time() - settings.lastTick,

[480] Fix | Delete

interval = settings.mainInterval;

[481] Fix | Delete

[482] Fix | Delete

if ( settings.suspend ) {

[483] Fix | Delete

return;

[484] Fix | Delete

}

[485] Fix | Delete

[486] Fix | Delete

if ( ! settings.hasFocus ) {

[487] Fix | Delete

interval = 120000; // 120 seconds. Post locks expire after 150 seconds.

[488] Fix | Delete

} else if ( settings.countdown > 0 && settings.tempInterval ) {

[489] Fix | Delete

interval = settings.tempInterval;

[490] Fix | Delete

settings.countdown--;

[491] Fix | Delete

[492] Fix | Delete

if ( settings.countdown < 1 ) {

[493] Fix | Delete

settings.tempInterval = 0;

[494] Fix | Delete

}

[495] Fix | Delete

}

[496] Fix | Delete

[497] Fix | Delete

if ( settings.minimalInterval && interval < settings.minimalInterval ) {

[498] Fix | Delete

interval = settings.minimalInterval;

[499] Fix | Delete