wp-go/static/wp-includes/js/jquery/jquery-migrate.js
2022-09-13 11:23:28 +08:00

860 lines
25 KiB
JavaScript
Executable File

/*!
* jQuery Migrate - v3.3.2 - 2020-11-18T08:29Z
* Copyright OpenJS Foundation and other contributors
*/
( function( factory ) {
"use strict";
if ( typeof define === "function" && define.amd ) {
// AMD. Register as an anonymous module.
define( [ "jquery" ], function( jQuery ) {
return factory( jQuery, window );
} );
} else if ( typeof module === "object" && module.exports ) {
// Node/CommonJS
// eslint-disable-next-line no-undef
module.exports = factory( require( "jquery" ), window );
} else {
// Browser globals
factory( jQuery, window );
}
} )( function( jQuery, window ) {
"use strict";
jQuery.migrateVersion = "3.3.2";
// Returns 0 if v1 == v2, -1 if v1 < v2, 1 if v1 > v2
function compareVersions( v1, v2 ) {
var i,
rVersionParts = /^(\d+)\.(\d+)\.(\d+)/,
v1p = rVersionParts.exec( v1 ) || [ ],
v2p = rVersionParts.exec( v2 ) || [ ];
for ( i = 1; i <= 3; i++ ) {
if ( +v1p[ i ] > +v2p[ i ] ) {
return 1;
}
if ( +v1p[ i ] < +v2p[ i ] ) {
return -1;
}
}
return 0;
}
function jQueryVersionSince( version ) {
return compareVersions( jQuery.fn.jquery, version ) >= 0;
}
( function() {
// Support: IE9 only
// IE9 only creates console object when dev tools are first opened
// IE9 console is a host object, callable but doesn't have .apply()
if ( !window.console || !window.console.log ) {
return;
}
// Need jQuery 3.0.0+ and no older Migrate loaded
if ( !jQuery || !jQueryVersionSince( "3.0.0" ) ) {
window.console.log( "JQMIGRATE: jQuery 3.0.0+ REQUIRED" );
}
if ( jQuery.migrateWarnings ) {
window.console.log( "JQMIGRATE: Migrate plugin loaded multiple times" );
}
// Show a message on the console so devs know we're active
window.console.log( "JQMIGRATE: Migrate is installed" +
( jQuery.migrateMute ? "" : " with logging active" ) +
", version " + jQuery.migrateVersion );
} )();
var warnedAbout = {};
// By default each warning is only reported once.
jQuery.migrateDeduplicateWarnings = true;
// List of warnings already given; public read only
jQuery.migrateWarnings = [];
// Set to false to disable traces that appear with warnings
if ( jQuery.migrateTrace === undefined ) {
jQuery.migrateTrace = true;
}
// Forget any warnings we've already given; public
jQuery.migrateReset = function() {
warnedAbout = {};
jQuery.migrateWarnings.length = 0;
};
function migrateWarn( msg ) {
var console = window.console;
if ( !jQuery.migrateDeduplicateWarnings || !warnedAbout[ msg ] ) {
warnedAbout[ msg ] = true;
jQuery.migrateWarnings.push( msg );
if ( console && console.warn && !jQuery.migrateMute ) {
console.warn( "JQMIGRATE: " + msg );
if ( jQuery.migrateTrace && console.trace ) {
console.trace();
}
}
}
}
function migrateWarnProp( obj, prop, value, msg ) {
Object.defineProperty( obj, prop, {
configurable: true,
enumerable: true,
get: function() {
migrateWarn( msg );
return value;
},
set: function( newValue ) {
migrateWarn( msg );
value = newValue;
}
} );
}
function migrateWarnFunc( obj, prop, newFunc, msg ) {
obj[ prop ] = function() {
migrateWarn( msg );
return newFunc.apply( this, arguments );
};
}
if ( window.document.compatMode === "BackCompat" ) {
// JQuery has never supported or tested Quirks Mode
migrateWarn( "jQuery is not compatible with Quirks Mode" );
}
var findProp,
class2type = {},
oldInit = jQuery.fn.init,
oldFind = jQuery.find,
rattrHashTest = /\[(\s*[-\w]+\s*)([~|^$*]?=)\s*([-\w#]*?#[-\w#]*)\s*\]/,
rattrHashGlob = /\[(\s*[-\w]+\s*)([~|^$*]?=)\s*([-\w#]*?#[-\w#]*)\s*\]/g,
// Support: Android <=4.0 only
// Make sure we trim BOM and NBSP
rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
jQuery.fn.init = function( arg1 ) {
var args = Array.prototype.slice.call( arguments );
if ( typeof arg1 === "string" && arg1 === "#" ) {
// JQuery( "#" ) is a bogus ID selector, but it returned an empty set before jQuery 3.0
migrateWarn( "jQuery( '#' ) is not a valid selector" );
args[ 0 ] = [];
}
return oldInit.apply( this, args );
};
jQuery.fn.init.prototype = jQuery.fn;
jQuery.find = function( selector ) {
var args = Array.prototype.slice.call( arguments );
// Support: PhantomJS 1.x
// String#match fails to match when used with a //g RegExp, only on some strings
if ( typeof selector === "string" && rattrHashTest.test( selector ) ) {
// The nonstandard and undocumented unquoted-hash was removed in jQuery 1.12.0
// First see if qS thinks it's a valid selector, if so avoid a false positive
try {
window.document.querySelector( selector );
} catch ( err1 ) {
// Didn't *look* valid to qSA, warn and try quoting what we think is the value
selector = selector.replace( rattrHashGlob, function( _, attr, op, value ) {
return "[" + attr + op + "\"" + value + "\"]";
} );
// If the regexp *may* have created an invalid selector, don't update it
// Note that there may be false alarms if selector uses jQuery extensions
try {
window.document.querySelector( selector );
migrateWarn( "Attribute selector with '#' must be quoted: " + args[ 0 ] );
args[ 0 ] = selector;
} catch ( err2 ) {
migrateWarn( "Attribute selector with '#' was not fixed: " + args[ 0 ] );
}
}
}
return oldFind.apply( this, args );
};
// Copy properties attached to original jQuery.find method (e.g. .attr, .isXML)
for ( findProp in oldFind ) {
if ( Object.prototype.hasOwnProperty.call( oldFind, findProp ) ) {
jQuery.find[ findProp ] = oldFind[ findProp ];
}
}
// The number of elements contained in the matched element set
migrateWarnFunc( jQuery.fn, "size", function() {
return this.length;
},
"jQuery.fn.size() is deprecated and removed; use the .length property" );
migrateWarnFunc( jQuery, "parseJSON", function() {
return JSON.parse.apply( null, arguments );
},
"jQuery.parseJSON is deprecated; use JSON.parse" );
migrateWarnFunc( jQuery, "holdReady", jQuery.holdReady,
"jQuery.holdReady is deprecated" );
migrateWarnFunc( jQuery, "unique", jQuery.uniqueSort,
"jQuery.unique is deprecated; use jQuery.uniqueSort" );
// Now jQuery.expr.pseudos is the standard incantation
migrateWarnProp( jQuery.expr, "filters", jQuery.expr.pseudos,
"jQuery.expr.filters is deprecated; use jQuery.expr.pseudos" );
migrateWarnProp( jQuery.expr, ":", jQuery.expr.pseudos,
"jQuery.expr[':'] is deprecated; use jQuery.expr.pseudos" );
// Prior to jQuery 3.1.1 there were internal refs so we don't warn there
if ( jQueryVersionSince( "3.1.1" ) ) {
migrateWarnFunc( jQuery, "trim", function( text ) {
return text == null ?
"" :
( text + "" ).replace( rtrim, "" );
},
"jQuery.trim is deprecated; use String.prototype.trim" );
}
// Prior to jQuery 3.2 there were internal refs so we don't warn there
if ( jQueryVersionSince( "3.2.0" ) ) {
migrateWarnFunc( jQuery, "nodeName", function( elem, name ) {
return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
},
"jQuery.nodeName is deprecated" );
migrateWarnFunc( jQuery, "isArray", Array.isArray,
"jQuery.isArray is deprecated; use Array.isArray"
);
}
if ( jQueryVersionSince( "3.3.0" ) ) {
migrateWarnFunc( jQuery, "isNumeric", function( obj ) {
// As of jQuery 3.0, isNumeric is limited to
// strings and numbers (primitives or objects)
// that can be coerced to finite numbers (gh-2662)
var type = typeof obj;
return ( type === "number" || type === "string" ) &&
// parseFloat NaNs numeric-cast false positives ("")
// ...but misinterprets leading-number strings, e.g. hex literals ("0x...")
// subtraction forces infinities to NaN
!isNaN( obj - parseFloat( obj ) );
},
"jQuery.isNumeric() is deprecated"
);
// Populate the class2type map
jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".
split( " " ),
function( _, name ) {
class2type[ "[object " + name + "]" ] = name.toLowerCase();
} );
migrateWarnFunc( jQuery, "type", function( obj ) {
if ( obj == null ) {
return obj + "";
}
// Support: Android <=2.3 only (functionish RegExp)
return typeof obj === "object" || typeof obj === "function" ?
class2type[ Object.prototype.toString.call( obj ) ] || "object" :
typeof obj;
},
"jQuery.type is deprecated" );
migrateWarnFunc( jQuery, "isFunction",
function( obj ) {
return typeof obj === "function";
},
"jQuery.isFunction() is deprecated" );
migrateWarnFunc( jQuery, "isWindow",
function( obj ) {
return obj != null && obj === obj.window;
},
"jQuery.isWindow() is deprecated"
);
}
// Support jQuery slim which excludes the ajax module
if ( jQuery.ajax ) {
var oldAjax = jQuery.ajax,
rjsonp = /(=)\?(?=&|$)|\?\?/;
jQuery.ajax = function( ) {
var jQXHR = oldAjax.apply( this, arguments );
// Be sure we got a jQXHR (e.g., not sync)
if ( jQXHR.promise ) {
migrateWarnFunc( jQXHR, "success", jQXHR.done,
"jQXHR.success is deprecated and removed" );
migrateWarnFunc( jQXHR, "error", jQXHR.fail,
"jQXHR.error is deprecated and removed" );
migrateWarnFunc( jQXHR, "complete", jQXHR.always,
"jQXHR.complete is deprecated and removed" );
}
return jQXHR;
};
// Only trigger the logic in jQuery <4 as the JSON-to-JSONP auto-promotion
// behavior is gone in jQuery 4.0 and as it has security implications, we don't
// want to restore the legacy behavior.
if ( !jQueryVersionSince( "4.0.0" ) ) {
// Register this prefilter before the jQuery one. Otherwise, a promoted
// request is transformed into one with the script dataType and we can't
// catch it anymore.
jQuery.ajaxPrefilter( "+json", function( s ) {
// Warn if JSON-to-JSONP auto-promotion happens.
if ( s.jsonp !== false && ( rjsonp.test( s.url ) ||
typeof s.data === "string" &&
( s.contentType || "" )
.indexOf( "application/x-www-form-urlencoded" ) === 0 &&
rjsonp.test( s.data )
) ) {
migrateWarn( "JSON-to-JSONP auto-promotion is deprecated" );
}
} );
}
}
var oldRemoveAttr = jQuery.fn.removeAttr,
oldToggleClass = jQuery.fn.toggleClass,
rmatchNonSpace = /\S+/g;
jQuery.fn.removeAttr = function( name ) {
var self = this;
jQuery.each( name.match( rmatchNonSpace ), function( _i, attr ) {
if ( jQuery.expr.match.bool.test( attr ) ) {
migrateWarn( "jQuery.fn.removeAttr no longer sets boolean properties: " + attr );
self.prop( attr, false );
}
} );
return oldRemoveAttr.apply( this, arguments );
};
jQuery.fn.toggleClass = function( state ) {
// Only deprecating no-args or single boolean arg
if ( state !== undefined && typeof state !== "boolean" ) {
return oldToggleClass.apply( this, arguments );
}
migrateWarn( "jQuery.fn.toggleClass( boolean ) is deprecated" );
// Toggle entire class name of each element
return this.each( function() {
var className = this.getAttribute && this.getAttribute( "class" ) || "";
if ( className ) {
jQuery.data( this, "__className__", className );
}
// If the element has a class name or if we're passed `false`,
// then remove the whole classname (if there was one, the above saved it).
// Otherwise bring back whatever was previously saved (if anything),
// falling back to the empty string if nothing was stored.
if ( this.setAttribute ) {
this.setAttribute( "class",
className || state === false ?
"" :
jQuery.data( this, "__className__" ) || ""
);
}
} );
};
function camelCase( string ) {
return string.replace( /-([a-z])/g, function( _, letter ) {
return letter.toUpperCase();
} );
}
var oldFnCss,
internalSwapCall = false,
ralphaStart = /^[a-z]/,
// The regex visualized:
//
// /----------\
// | | /-------\
// | / Top \ | | |
// /--- Border ---+-| Right |-+---+- Width -+---\
// | | Bottom | |
// | \ Left / |
// | |
// | /----------\ |
// | /-------------\ | | |- END
// | | | | / Top \ | |
// | | / Margin \ | | | Right | | |
// |---------+-| |-+---+-| Bottom |-+----|
// | \ Padding / \ Left / |
// BEGIN -| |
// | /---------\ |
// | | | |
// | | / Min \ | / Width \ |
// \--------------+-| |-+---| |---/
// \ Max / \ Height /
rautoPx = /^(?:Border(?:Top|Right|Bottom|Left)?(?:Width|)|(?:Margin|Padding)?(?:Top|Right|Bottom|Left)?|(?:Min|Max)?(?:Width|Height))$/;
// If this version of jQuery has .swap(), don't false-alarm on internal uses
if ( jQuery.swap ) {
jQuery.each( [ "height", "width", "reliableMarginRight" ], function( _, name ) {
var oldHook = jQuery.cssHooks[ name ] && jQuery.cssHooks[ name ].get;
if ( oldHook ) {
jQuery.cssHooks[ name ].get = function() {
var ret;
internalSwapCall = true;
ret = oldHook.apply( this, arguments );
internalSwapCall = false;
return ret;
};
}
} );
}
jQuery.swap = function( elem, options, callback, args ) {
var ret, name,
old = {};
if ( !internalSwapCall ) {
migrateWarn( "jQuery.swap() is undocumented and deprecated" );
}
// Remember the old values, and insert the new ones
for ( name in options ) {
old[ name ] = elem.style[ name ];
elem.style[ name ] = options[ name ];
}
ret = callback.apply( elem, args || [] );
// Revert the old values
for ( name in options ) {
elem.style[ name ] = old[ name ];
}
return ret;
};
if ( jQueryVersionSince( "3.4.0" ) && typeof Proxy !== "undefined" ) {
jQuery.cssProps = new Proxy( jQuery.cssProps || {}, {
set: function() {
migrateWarn( "JQMIGRATE: jQuery.cssProps is deprecated" );
return Reflect.set.apply( this, arguments );
}
} );
}
// Create a dummy jQuery.cssNumber if missing. It won't be used by jQuery but
// it will prevent code adding new keys to it unconditionally from crashing.
if ( !jQuery.cssNumber ) {
jQuery.cssNumber = {};
}
function isAutoPx( prop ) {
// The first test is used to ensure that:
// 1. The prop starts with a lowercase letter (as we uppercase it for the second regex).
// 2. The prop is not empty.
return ralphaStart.test( prop ) &&
rautoPx.test( prop[ 0 ].toUpperCase() + prop.slice( 1 ) );
}
oldFnCss = jQuery.fn.css;
jQuery.fn.css = function( name, value ) {
var camelName,
origThis = this;
if ( name && typeof name === "object" && !Array.isArray( name ) ) {
jQuery.each( name, function( n, v ) {
jQuery.fn.css.call( origThis, n, v );
} );
return this;
}
if ( typeof value === "number" ) {
camelName = camelCase( name );
if ( !isAutoPx( camelName ) && !jQuery.cssNumber[ camelName ] ) {
migrateWarn( "Number-typed values are deprecated for jQuery.fn.css( \"" +
name + "\", value )" );
}
}
return oldFnCss.apply( this, arguments );
};
var oldData = jQuery.data;
jQuery.data = function( elem, name, value ) {
var curData, sameKeys, key;
// Name can be an object, and each entry in the object is meant to be set as data
if ( name && typeof name === "object" && arguments.length === 2 ) {
curData = jQuery.hasData( elem ) && oldData.call( this, elem );
sameKeys = {};
for ( key in name ) {
if ( key !== camelCase( key ) ) {
migrateWarn( "jQuery.data() always sets/gets camelCased names: " + key );
curData[ key ] = name[ key ];
} else {
sameKeys[ key ] = name[ key ];
}
}
oldData.call( this, elem, sameKeys );
return name;
}
// If the name is transformed, look for the un-transformed name in the data object
if ( name && typeof name === "string" && name !== camelCase( name ) ) {
curData = jQuery.hasData( elem ) && oldData.call( this, elem );
if ( curData && name in curData ) {
migrateWarn( "jQuery.data() always sets/gets camelCased names: " + name );
if ( arguments.length > 2 ) {
curData[ name ] = value;
}
return curData[ name ];
}
}
return oldData.apply( this, arguments );
};
// Support jQuery slim which excludes the effects module
if ( jQuery.fx ) {
var intervalValue, intervalMsg,
oldTweenRun = jQuery.Tween.prototype.run,
linearEasing = function( pct ) {
return pct;
};
jQuery.Tween.prototype.run = function( ) {
if ( jQuery.easing[ this.easing ].length > 1 ) {
migrateWarn(
"'jQuery.easing." + this.easing.toString() + "' should use only one argument"
);
jQuery.easing[ this.easing ] = linearEasing;
}
oldTweenRun.apply( this, arguments );
};
intervalValue = jQuery.fx.interval || 13;
intervalMsg = "jQuery.fx.interval is deprecated";
// Support: IE9, Android <=4.4
// Avoid false positives on browsers that lack rAF
// Don't warn if document is hidden, jQuery uses setTimeout (#292)
if ( window.requestAnimationFrame ) {
Object.defineProperty( jQuery.fx, "interval", {
configurable: true,
enumerable: true,
get: function() {
if ( !window.document.hidden ) {
migrateWarn( intervalMsg );
}
return intervalValue;
},
set: function( newValue ) {
migrateWarn( intervalMsg );
intervalValue = newValue;
}
} );
}
}
var oldLoad = jQuery.fn.load,
oldEventAdd = jQuery.event.add,
originalFix = jQuery.event.fix;
jQuery.event.props = [];
jQuery.event.fixHooks = {};
migrateWarnProp( jQuery.event.props, "concat", jQuery.event.props.concat,
"jQuery.event.props.concat() is deprecated and removed" );
jQuery.event.fix = function( originalEvent ) {
var event,
type = originalEvent.type,
fixHook = this.fixHooks[ type ],
props = jQuery.event.props;
if ( props.length ) {
migrateWarn( "jQuery.event.props are deprecated and removed: " + props.join() );
while ( props.length ) {
jQuery.event.addProp( props.pop() );
}
}
if ( fixHook && !fixHook._migrated_ ) {
fixHook._migrated_ = true;
migrateWarn( "jQuery.event.fixHooks are deprecated and removed: " + type );
if ( ( props = fixHook.props ) && props.length ) {
while ( props.length ) {
jQuery.event.addProp( props.pop() );
}
}
}
event = originalFix.call( this, originalEvent );
return fixHook && fixHook.filter ? fixHook.filter( event, originalEvent ) : event;
};
jQuery.event.add = function( elem, types ) {
// This misses the multiple-types case but that seems awfully rare
if ( elem === window && types === "load" && window.document.readyState === "complete" ) {
migrateWarn( "jQuery(window).on('load'...) called after load event occurred" );
}
return oldEventAdd.apply( this, arguments );
};
jQuery.each( [ "load", "unload", "error" ], function( _, name ) {
jQuery.fn[ name ] = function() {
var args = Array.prototype.slice.call( arguments, 0 );
// If this is an ajax load() the first arg should be the string URL;
// technically this could also be the "Anything" arg of the event .load()
// which just goes to show why this dumb signature has been deprecated!
// jQuery custom builds that exclude the Ajax module justifiably die here.
if ( name === "load" && typeof args[ 0 ] === "string" ) {
return oldLoad.apply( this, args );
}
migrateWarn( "jQuery.fn." + name + "() is deprecated" );
args.splice( 0, 0, name );
if ( arguments.length ) {
return this.on.apply( this, args );
}
// Use .triggerHandler here because:
// - load and unload events don't need to bubble, only applied to window or image
// - error event should not bubble to window, although it does pre-1.7
// See http://bugs.jquery.com/ticket/11820
this.triggerHandler.apply( this, args );
return this;
};
} );
jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " +
"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
"change select submit keydown keypress keyup contextmenu" ).split( " " ),
function( _i, name ) {
// Handle event binding
jQuery.fn[ name ] = function( data, fn ) {
migrateWarn( "jQuery.fn." + name + "() event shorthand is deprecated" );
return arguments.length > 0 ?
this.on( name, null, data, fn ) :
this.trigger( name );
};
} );
// Trigger "ready" event only once, on document ready
jQuery( function() {
jQuery( window.document ).triggerHandler( "ready" );
} );
jQuery.event.special.ready = {
setup: function() {
if ( this === window.document ) {
migrateWarn( "'ready' event is deprecated" );
}
}
};
jQuery.fn.extend( {
bind: function( types, data, fn ) {
migrateWarn( "jQuery.fn.bind() is deprecated" );
return this.on( types, null, data, fn );
},
unbind: function( types, fn ) {
migrateWarn( "jQuery.fn.unbind() is deprecated" );
return this.off( types, null, fn );
},
delegate: function( selector, types, data, fn ) {
migrateWarn( "jQuery.fn.delegate() is deprecated" );
return this.on( types, selector, data, fn );
},
undelegate: function( selector, types, fn ) {
migrateWarn( "jQuery.fn.undelegate() is deprecated" );
return arguments.length === 1 ?
this.off( selector, "**" ) :
this.off( types, selector || "**", fn );
},
hover: function( fnOver, fnOut ) {
migrateWarn( "jQuery.fn.hover() is deprecated" );
return this.on( "mouseenter", fnOver ).on( "mouseleave", fnOut || fnOver );
}
} );
var rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi,
origHtmlPrefilter = jQuery.htmlPrefilter,
makeMarkup = function( html ) {
var doc = window.document.implementation.createHTMLDocument( "" );
doc.body.innerHTML = html;
return doc.body && doc.body.innerHTML;
},
warnIfChanged = function( html ) {
var changed = html.replace( rxhtmlTag, "<$1></$2>" );
if ( changed !== html && makeMarkup( html ) !== makeMarkup( changed ) ) {
migrateWarn( "HTML tags must be properly nested and closed: " + html );
}
};
jQuery.UNSAFE_restoreLegacyHtmlPrefilter = function() {
jQuery.htmlPrefilter = function( html ) {
warnIfChanged( html );
return html.replace( rxhtmlTag, "<$1></$2>" );
};
};
jQuery.htmlPrefilter = function( html ) {
warnIfChanged( html );
return origHtmlPrefilter( html );
};
var oldOffset = jQuery.fn.offset;
jQuery.fn.offset = function() {
var elem = this[ 0 ];
if ( elem && ( !elem.nodeType || !elem.getBoundingClientRect ) ) {
migrateWarn( "jQuery.fn.offset() requires a valid DOM element" );
return arguments.length ? this : undefined;
}
return oldOffset.apply( this, arguments );
};
// Support jQuery slim which excludes the ajax module
// The jQuery.param patch is about respecting `jQuery.ajaxSettings.traditional`
// so it doesn't make sense for the slim build.
if ( jQuery.ajax ) {
var oldParam = jQuery.param;
jQuery.param = function( data, traditional ) {
var ajaxTraditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
if ( traditional === undefined && ajaxTraditional ) {
migrateWarn( "jQuery.param() no longer uses jQuery.ajaxSettings.traditional" );
traditional = ajaxTraditional;
}
return oldParam.call( this, data, traditional );
};
}
var oldSelf = jQuery.fn.andSelf || jQuery.fn.addBack;
jQuery.fn.andSelf = function() {
migrateWarn( "jQuery.fn.andSelf() is deprecated and removed, use jQuery.fn.addBack()" );
return oldSelf.apply( this, arguments );
};
// Support jQuery slim which excludes the deferred module in jQuery 4.0+
if ( jQuery.Deferred ) {
var oldDeferred = jQuery.Deferred,
tuples = [
// Action, add listener, callbacks, .then handlers, final state
[ "resolve", "done", jQuery.Callbacks( "once memory" ),
jQuery.Callbacks( "once memory" ), "resolved" ],
[ "reject", "fail", jQuery.Callbacks( "once memory" ),
jQuery.Callbacks( "once memory" ), "rejected" ],
[ "notify", "progress", jQuery.Callbacks( "memory" ),
jQuery.Callbacks( "memory" ) ]
];
jQuery.Deferred = function( func ) {
var deferred = oldDeferred(),
promise = deferred.promise();
deferred.pipe = promise.pipe = function( /* fnDone, fnFail, fnProgress */ ) {
var fns = arguments;
migrateWarn( "deferred.pipe() is deprecated" );
return jQuery.Deferred( function( newDefer ) {
jQuery.each( tuples, function( i, tuple ) {
var fn = typeof fns[ i ] === "function" && fns[ i ];
// Deferred.done(function() { bind to newDefer or newDefer.resolve })
// deferred.fail(function() { bind to newDefer or newDefer.reject })
// deferred.progress(function() { bind to newDefer or newDefer.notify })
deferred[ tuple[ 1 ] ]( function() {
var returned = fn && fn.apply( this, arguments );
if ( returned && typeof returned.promise === "function" ) {
returned.promise()
.done( newDefer.resolve )
.fail( newDefer.reject )
.progress( newDefer.notify );
} else {
newDefer[ tuple[ 0 ] + "With" ](
this === promise ? newDefer.promise() : this,
fn ? [ returned ] : arguments
);
}
} );
} );
fns = null;
} ).promise();
};
if ( func ) {
func.call( deferred, deferred );
}
return deferred;
};
// Preserve handler of uncaught exceptions in promise chains
jQuery.Deferred.exceptionHook = oldDeferred.exceptionHook;
}
return jQuery;
} );