| define( [ |
| "../core", |
| "../var/document", |
| "../var/isFunction" |
| ], function( jQuery, document, isFunction ) { |
| |
| "use strict"; |
| |
| var readyCallbacks = [], |
| whenReady = function( fn ) { |
| readyCallbacks.push( fn ); |
| }, |
| executeReady = function( fn ) { |
| |
| // Prevent errors from freezing future callback execution (gh-1823) |
| // Not backwards-compatible as this does not execute sync |
| window.setTimeout( function() { |
| fn.call( document, jQuery ); |
| } ); |
| }; |
| |
| jQuery.fn.ready = function( fn ) { |
| whenReady( fn ); |
| return this; |
| }; |
| |
| jQuery.extend( { |
| |
| // Is the DOM ready to be used? Set to true once it occurs. |
| isReady: false, |
| |
| // A counter to track how many items to wait for before |
| // the ready event fires. See #6781 |
| readyWait: 1, |
| |
| ready: function( wait ) { |
| |
| // Abort if there are pending holds or we're already ready |
| if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) { |
| return; |
| } |
| |
| // Remember that the DOM is ready |
| jQuery.isReady = true; |
| |
| // If a normal DOM Ready event fired, decrement, and wait if need be |
| if ( wait !== true && --jQuery.readyWait > 0 ) { |
| return; |
| } |
| |
| whenReady = function( fn ) { |
| readyCallbacks.push( fn ); |
| |
| while ( readyCallbacks.length ) { |
| fn = readyCallbacks.shift(); |
| if ( isFunction( fn ) ) { |
| executeReady( fn ); |
| } |
| } |
| }; |
| |
| whenReady(); |
| } |
| } ); |
| |
| // Make jQuery.ready Promise consumable (gh-1778) |
| jQuery.ready.then = jQuery.fn.ready; |
| |
| /** |
| * The ready event handler and self cleanup method |
| */ |
| function completed() { |
| document.removeEventListener( "DOMContentLoaded", completed ); |
| window.removeEventListener( "load", completed ); |
| jQuery.ready(); |
| } |
| |
| // Catch cases where $(document).ready() is called |
| // after the browser event has already occurred. |
| // Support: IE9-10 only |
| // Older IE sometimes signals "interactive" too soon |
| if ( document.readyState === "complete" || |
| ( document.readyState !== "loading" && !document.documentElement.doScroll ) ) { |
| |
| // Handle it asynchronously to allow scripts the opportunity to delay ready |
| window.setTimeout( jQuery.ready ); |
| |
| } else { |
| |
| // Use the handy event callback |
| document.addEventListener( "DOMContentLoaded", completed ); |
| |
| // A fallback to window.onload, that will always work |
| window.addEventListener( "load", completed ); |
| } |
| |
| } ); |