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examples/web/jquery-1.5.2.js  view on Meta::CPAN

		return {

			send: function( _, callback ) {

				script = document.createElement( "script" );

				script.async = "async";

				if ( s.scriptCharset ) {
					script.charset = s.scriptCharset;
				}

				script.src = s.url;

				// Attach handlers for all browsers
				script.onload = script.onreadystatechange = function( _, isAbort ) {

					if ( !script.readyState || /loaded|complete/.test( script.readyState ) ) {

						// Handle memory leak in IE
						script.onload = script.onreadystatechange = null;

						// Remove the script
						if ( head && script.parentNode ) {
							head.removeChild( script );
						}

						// Dereference the script
						script = undefined;

						// Callback if not abort
						if ( !isAbort ) {
							callback( 200, "success" );
						}
					}
				};
				// Use insertBefore instead of appendChild  to circumvent an IE6 bug.
				// This arises when a base node is used (#2709 and #4378).
				head.insertBefore( script, head.firstChild );
			},

			abort: function() {
				if ( script ) {
					script.onload( 0, 1 );
				}
			}
		};
	}
} );




var // #5280: next active xhr id and list of active xhrs' callbacks
	xhrId = jQuery.now(),
	xhrCallbacks,

	// XHR used to determine supports properties
	testXHR;

// #5280: Internet Explorer will keep connections alive if we don't abort on unload
function xhrOnUnloadAbort() {
	jQuery( window ).unload(function() {
		// Abort all pending requests
		for ( var key in xhrCallbacks ) {
			xhrCallbacks[ key ]( 0, 1 );
		}
	});
}

// Functions to create xhrs
function createStandardXHR() {
	try {
		return new window.XMLHttpRequest();
	} catch( e ) {}
}

function createActiveXHR() {
	try {
		return new window.ActiveXObject( "Microsoft.XMLHTTP" );
	} catch( e ) {}
}

// Create the request object
// (This is still attached to ajaxSettings for backward compatibility)
jQuery.ajaxSettings.xhr = window.ActiveXObject ?
	/* Microsoft failed to properly
	 * implement the XMLHttpRequest in IE7 (can't request local files),
	 * so we use the ActiveXObject when it is available
	 * Additionally XMLHttpRequest can be disabled in IE7/IE8 so
	 * we need a fallback.
	 */
	function() {
		return !this.isLocal && createStandardXHR() || createActiveXHR();
	} :
	// For all other browsers, use the standard XMLHttpRequest object
	createStandardXHR;

// Test if we can create an xhr object
testXHR = jQuery.ajaxSettings.xhr();
jQuery.support.ajax = !!testXHR;

// Does this browser support crossDomain XHR requests
jQuery.support.cors = testXHR && ( "withCredentials" in testXHR );

// No need for the temporary xhr anymore
testXHR = undefined;

// Create transport if the browser can provide an xhr
if ( jQuery.support.ajax ) {

	jQuery.ajaxTransport(function( s ) {
		// Cross domain only allowed if supported through XMLHttpRequest
		if ( !s.crossDomain || jQuery.support.cors ) {

			var callback;

			return {
				send: function( headers, complete ) {

					// Get a new xhr