Index: src/wp-admin/includes/class-wp-list-table.php
===================================================================
--- src/wp-admin/includes/class-wp-list-table.php	(revision 40322)
+++ src/wp-admin/includes/class-wp-list-table.php	(working copy)
@@ -470,7 +470,7 @@
 
 		echo "</select>\n";
 
-		submit_button( __( 'Apply' ), 'action', '', false, array( 'id' => "doaction$two" ) );
+		submit_button( __( 'Apply' ), 'action', '', false, array( 'id' => "doaction$two", 'disabled' => 'disabled' ) );
 		echo "\n";
 	}
 
Index: src/wp-admin/js/common.js
===================================================================
--- src/wp-admin/js/common.js	(revision 40322)
+++ src/wp-admin/js/common.js	(working copy)
@@ -204,7 +204,10 @@
 			adminbar: $adminbar.height(),
 			menu: $adminMenuWrap.height()
 		},
-		$headerEnd = $( '.wp-header-end' );
+		$headerEnd = $( '.wp-header-end' ),
+		listTable = $( '.wp-list-table' ).closest( 'form' ),
+		doActions = listTable.find( '#doaction, #doaction2' );
+		actions = listTable.find( '#bulk-action-selector-top, #bulk-action-selector-bottom' );
 
 
 	// when the menu is folded, make the fly-out submenu header clickable
@@ -416,6 +419,39 @@
 
 	// Init screen meta
 	screenMeta.init();
+	
+	/**
+	 * Enable and Disable Apply button in wp-list
+	 *
+	 * @param {jQuery.Event} e
+	 */
+	function setApplyButton( e ) {
+		
+		if ( ( 'SELECT' === e.target.tagName && e.target.value == -1 ) ) {
+			doActions.prop( 'disabled', true );
+            return
+        }
+		
+		var checkedLength = listTable.find( 'table tbody .check-column input[type="checkbox"]:checked' ).length;
+		
+		if( checkedLength && $( '#bulk-action-selector-top' ).val() != -1) {
+			doActions.prop( 'disabled', false );
+		} else {
+			doActions.prop( 'disabled', true );
+		}
+		
+	}
+	
+	// This event needs to be delegated. Ticket #31634
+	$body.on( 'click', '.cancel', function( event ) { 
+		setApplyButton( event );
+	});
+	
+	// This event needs to be delegated. Ticket #31634
+	$body.on( 'change', '#bulk-action-selector-top, #bulk-action-selector-bottom', function( event ) { 
+		actions.not( this ).val( this.value );
+		setApplyButton( event );
+	});
 
 	// This event needs to be delegated. Ticket #37973.
 	$body.on( 'click', 'tbody > tr > .check-column :checkbox', function( event ) {
@@ -444,6 +480,8 @@
 		$(this).closest('table').children('thead, tfoot').find(':checkbox').prop('checked', function() {
 			return ( 0 === unchecked.length );
 		});
+		
+		setApplyButton( event );
 
 		return true;
 	});
@@ -482,6 +520,9 @@
 
 				return false;
 			});
+		
+		setApplyButton( event );
+		
 	});
 
 	// Show row actions on keyboard focus of its parent container element or any other elements contained within
Index: src/wp-admin/js/inline-edit-post.js
===================================================================
--- src/wp-admin/js/inline-edit-post.js	(revision 40322)
+++ src/wp-admin/js/inline-edit-post.js	(working copy)
@@ -62,16 +62,17 @@
 
 		$('select[name="_status"] option[value="future"]', bulkRow).remove();
 
-		$('#doaction, #doaction2').click(function(e){
+		$( '#doaction, #doaction2' ).click(function(e){
 			var n;
 
 			t.whichBulkButtonId = $( this ).attr( 'id' );
 			n = t.whichBulkButtonId.substr( 2 );
 
 			if ( 'edit' === $( 'select[name="' + n + '"]' ).val() ) {
+				$( '#doaction, #doaction2' ).prop( 'disabled', true );
 				e.preventDefault();
 				t.setBulk();
-			} else if ( $('form#posts-filter tr.inline-editor').length > 0 ) {
+			} else if ( $( 'form#posts-filter tr.inline-editor' ).length > 0 ) {
 				t.revert();
 			}
 		});
@@ -316,7 +317,6 @@
 			}
 		}
 
-		return false;
 	},
 
 	getId : function(o) {