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Diffstat (limited to 'node_modules/jquery/src/core/ready.js')
-rw-r--r-- | node_modules/jquery/src/core/ready.js | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/node_modules/jquery/src/core/ready.js b/node_modules/jquery/src/core/ready.js new file mode 100644 index 0000000000..7d93e67687 --- /dev/null +++ b/node_modules/jquery/src/core/ready.js @@ -0,0 +1,103 @@ +define( [ + "../core", + "../var/document", + "../core/init", + "../deferred" +], function( jQuery, document ) { + +// The deferred used on DOM ready +var readyList; + +jQuery.fn.ready = function( fn ) { + + // Add the callback + jQuery.ready.promise().done( 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, + + // Hold (or release) the ready event + holdReady: function( hold ) { + if ( hold ) { + jQuery.readyWait++; + } else { + jQuery.ready( true ); + } + }, + + // Handle when the DOM is ready + 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; + } + + // If there are functions bound, to execute + readyList.resolveWith( document, [ jQuery ] ); + + // Trigger any bound ready events + if ( jQuery.fn.triggerHandler ) { + jQuery( document ).triggerHandler( "ready" ); + jQuery( document ).off( "ready" ); + } + } +} ); + +/** + * The ready event handler and self cleanup method + */ +function completed() { + document.removeEventListener( "DOMContentLoaded", completed ); + window.removeEventListener( "load", completed ); + jQuery.ready(); +} + +jQuery.ready.promise = function( obj ) { + if ( !readyList ) { + + readyList = jQuery.Deferred(); + + // 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 ); + } + } + return readyList.promise( obj ); +}; + +// Kick off the DOM ready check even if the user does not +jQuery.ready.promise(); + +} ); |