Ajax: Deprecate AJAX event aliases, inline event/alias into deprecated

A new `src/deprecated` directory makes it possible to exclude some deprecated
APIs from a custom build when their respective "parent" module is excluded
without keeping that module outside of the `src/deprecated` directory or
the `src/deprecated.js` file.

Closes gh-4572

(cherry picked from 23d5392)

Gruntfile.js

@@ -58,14 +58,15 @@ module.exports = function( grunt ) {
 
 				// Exclude specified modules if the module matching the key is removed
 				removeWith: {
-					ajax: [ "manipulation/_evalUrl", "event/ajax" ],
+					ajax: [ "manipulation/_evalUrl", "deprecated/ajax-event-alias" ],
 					callbacks: [ "deferred" ],
 					css: [ "effects", "dimensions", "offset" ],
 					"css/showHide": [ "effects" ],
 					deferred: {
 						remove: [ "ajax", "effects", "queue", "core/ready" ],
 						include: [ "core/ready-no-deferred" ]
 					},
+					event: [ "deprecated/ajax-event-alias", "deprecated/event" ],
 					sizzle: [ "css/hiddenVisibleSelectors", "effects/animatedSelector" ]
 				}
 			}

README.md

@@ -90,10 +90,9 @@ Some example modules that can be excluded are:
 - **deprecated**: Methods documented as deprecated but not yet removed.
 - **dimensions**: The `.width()` and `.height()` methods, including `inner-` and `outer-` variations.
 - **effects**: The `.animate()` method and its shorthands such as `.slideUp()` or `.hide("slow")`.
-- **event**: The `.on()` and `.off()` methods and all event functionality. Also removes `event/alias`.
-- **event/alias**: All event attaching/triggering shorthands like `.click()` or `.mouseover()`.
+- **event**: The `.on()` and `.off()` methods and all event functionality.
 - **event/focusin**: Cross-browser support for the focusin and focusout events.
-- **event/trigger**: The `.trigger()` and `.triggerHandler()` methods. Used by **alias** and **focusin** modules.
+- **event/trigger**: The `.trigger()` and `.triggerHandler()` methods.
 - **offset**: The `.offset()`, `.position()`, `.offsetParent()`, `.scrollLeft()`, and `.scrollTop()` methods.
 - **wrap**: The `.wrap()`, `.wrapAll()`, `.wrapInner()`, and `.unwrap()` methods.
 - **core/ready**: Exclude the ready module if you place your scripts at the end of the body. Any ready callbacks bound with `jQuery()` will simply be called immediately. However, `jQuery(document).ready()` will not be a function and `.on("ready", ...)` or similar will not be triggered.
@@ -154,7 +153,7 @@ grunt custom:-css
 Exclude a bunch of modules:
 
 ```bash
-grunt custom:-ajax,-css,-deprecated,-dimensions,-effects,-event/alias,-offset,-wrap
+grunt custom:-ajax/jsonp,-css,-deprecated,-dimensions,-effects,-offset,-wrap
 ```
 
 There is also a special alias to generate a build with the same configuration as the official jQuery Slim build is generated:

src/deprecated.js

@@ -7,7 +7,8 @@ define( [
 	"./var/isWindow",
 	"./var/slice",
 
-	"./event/alias"
+	"./deprecated/ajax-event-alias",
+	"./deprecated/event"
 ], function( jQuery, nodeName, camelCase, toType, isFunction, isWindow, slice ) {
 
 "use strict";
@@ -16,27 +17,6 @@ define( [
 // Make sure we trim BOM and NBSP
 var rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;
 
-jQuery.fn.extend( {
-
-	bind: function( types, data, fn ) {
-		return this.on( types, null, data, fn );
-	},
-	unbind: function( types, fn ) {
-		return this.off( types, null, fn );
-	},
-
-	delegate: function( selector, types, data, fn ) {
-		return this.on( types, selector, data, fn );
-	},
-	undelegate: function( selector, types, fn ) {
-
-		// ( namespace ) or ( selector, types [, fn] )
-		return arguments.length === 1 ?
-			this.off( selector, "**" ) :
-			this.off( types, selector || "**", fn );
-	}
-} );
-
 // Bind a function to a context, optionally partially applying any
 // arguments.
 // jQuery.proxy is deprecated to promote standards (specifically Function#bind)

src/event/ajax.js → src/deprecated/ajax-event-alias.js

@@ -1,11 +1,11 @@
 define( [
 	"../core",
+	"../ajax",
 	"../event"
 ], function( jQuery ) {
 
 "use strict";
 
-// Attach a bunch of functions for handling common AJAX events
 jQuery.each( [
 	"ajaxStart",
 	"ajaxStop",

src/deprecated/event.js

@@ -0,0 +1,48 @@
+define( [
+	"../core",
+
+	"../event",
+	"../event/trigger"
+], function( jQuery ) {
+
+"use strict";
+
+jQuery.fn.extend( {
+
+	bind: function( types, data, fn ) {
+		return this.on( types, null, data, fn );
+	},
+	unbind: function( types, fn ) {
+		return this.off( types, null, fn );
+	},
+
+	delegate: function( selector, types, data, fn ) {
+		return this.on( types, selector, data, fn );
+	},
+	undelegate: function( selector, types, fn ) {
+
+		// ( namespace ) or ( selector, types [, fn] )
+		return arguments.length === 1 ?
+			this.off( selector, "**" ) :
+			this.off( types, selector || "**", fn );
+	},
+
+	hover: function( fnOver, fnOut ) {
+		return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
+	}
+} );
+
+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 ) {
+			return arguments.length > 0 ?
+				this.on( name, null, data, fn ) :
+				this.trigger( name );
+		};
+	} );
+
+} );

src/jquery.js

@@ -23,7 +23,6 @@ define( [
 	"./ajax/script",
 	"./ajax/jsonp",
 	"./ajax/load",
-	"./event/ajax",
 	"./effects",
 	"./effects/animatedSelector",
 	"./offset",