diff -r 490d5cc509ed -r cf61fcea0001 wp/wp-includes/js/tinymce/plugins/tabfocus/plugin.js
--- a/wp/wp-includes/js/tinymce/plugins/tabfocus/plugin.js	Tue Jun 09 11:14:17 2015 +0000
+++ b/wp/wp-includes/js/tinymce/plugins/tabfocus/plugin.js	Mon Oct 14 17:39:30 2019 +0200
@@ -1,120 +1,124 @@
-/**
- * plugin.js
- *
- * Copyright, Moxiecode Systems AB
- * Released under LGPL License.
- *
- * License: http://www.tinymce.com/license
- * Contributing: http://www.tinymce.com/contributing
- */
+(function () {
+var tabfocus = (function () {
+  'use strict';
+
+  var global = tinymce.util.Tools.resolve('tinymce.PluginManager');
 
-/*global tinymce:true */
+  var global$1 = tinymce.util.Tools.resolve('tinymce.dom.DOMUtils');
 
-tinymce.PluginManager.add('tabfocus', function(editor) {
-	var DOM = tinymce.DOM, each = tinymce.each, explode = tinymce.explode;
+  var global$2 = tinymce.util.Tools.resolve('tinymce.EditorManager');
+
+  var global$3 = tinymce.util.Tools.resolve('tinymce.Env');
 
-	function tabCancel(e) {
-		if (e.keyCode === 9 && !e.ctrlKey && !e.altKey && !e.metaKey) {
-			e.preventDefault();
-		}
-	}
+  var global$4 = tinymce.util.Tools.resolve('tinymce.util.Delay');
 
-	function tabHandler(e) {
-		var x, el, v, i;
+  var global$5 = tinymce.util.Tools.resolve('tinymce.util.Tools');
 
-		if (e.keyCode !== 9 || e.ctrlKey || e.altKey || e.metaKey || e.isDefaultPrevented()) {
-			return;
-		}
+  var global$6 = tinymce.util.Tools.resolve('tinymce.util.VK');
 
-		function find(direction) {
-			el = DOM.select(':input:enabled,*[tabindex]:not(iframe)');
-
-			function canSelectRecursive(e) {
-				return e.nodeName === "BODY" || (e.type != 'hidden' &&
-					e.style.display != "none" &&
-					e.style.visibility != "hidden" && canSelectRecursive(e.parentNode));
-			}
-
-			function canSelect(el) {
-				return /INPUT|TEXTAREA|BUTTON/.test(el.tagName) && tinymce.get(e.id) && el.tabIndex != -1 && canSelectRecursive(el);
-			}
+  var getTabFocusElements = function (editor) {
+    return editor.getParam('tabfocus_elements', ':prev,:next');
+  };
+  var getTabFocus = function (editor) {
+    return editor.getParam('tab_focus', getTabFocusElements(editor));
+  };
+  var $_8rita4kwjjgwed4m = { getTabFocus: getTabFocus };
 
-			each(el, function(e, i) {
-				if (e.id == editor.id) {
-					x = i;
-					return false;
-				}
-			});
-			if (direction > 0) {
-				for (i = x + 1; i < el.length; i++) {
-					if (canSelect(el[i])) {
-						return el[i];
-					}
-				}
-			} else {
-				for (i = x - 1; i >= 0; i--) {
-					if (canSelect(el[i])) {
-						return el[i];
-					}
-				}
-			}
-
-			return null;
-		}
-
-		v = explode(editor.getParam('tab_focus', editor.getParam('tabfocus_elements', ':prev,:next')));
-
-		if (v.length == 1) {
-			v[1] = v[0];
-			v[0] = ':prev';
-		}
+  var DOM = global$1.DOM;
+  var tabCancel = function (e) {
+    if (e.keyCode === global$6.TAB && !e.ctrlKey && !e.altKey && !e.metaKey) {
+      e.preventDefault();
+    }
+  };
+  var setup = function (editor) {
+    function tabHandler(e) {
+      var x, el, v, i;
+      if (e.keyCode !== global$6.TAB || e.ctrlKey || e.altKey || e.metaKey || e.isDefaultPrevented()) {
+        return;
+      }
+      function find(direction) {
+        el = DOM.select(':input:enabled,*[tabindex]:not(iframe)');
+        function canSelectRecursive(e) {
+          return e.nodeName === 'BODY' || e.type !== 'hidden' && e.style.display !== 'none' && e.style.visibility !== 'hidden' && canSelectRecursive(e.parentNode);
+        }
+        function canSelect(el) {
+          return /INPUT|TEXTAREA|BUTTON/.test(el.tagName) && global$2.get(e.id) && el.tabIndex !== -1 && canSelectRecursive(el);
+        }
+        global$5.each(el, function (e, i) {
+          if (e.id === editor.id) {
+            x = i;
+            return false;
+          }
+        });
+        if (direction > 0) {
+          for (i = x + 1; i < el.length; i++) {
+            if (canSelect(el[i])) {
+              return el[i];
+            }
+          }
+        } else {
+          for (i = x - 1; i >= 0; i--) {
+            if (canSelect(el[i])) {
+              return el[i];
+            }
+          }
+        }
+        return null;
+      }
+      v = global$5.explode($_8rita4kwjjgwed4m.getTabFocus(editor));
+      if (v.length === 1) {
+        v[1] = v[0];
+        v[0] = ':prev';
+      }
+      if (e.shiftKey) {
+        if (v[0] === ':prev') {
+          el = find(-1);
+        } else {
+          el = DOM.get(v[0]);
+        }
+      } else {
+        if (v[1] === ':next') {
+          el = find(1);
+        } else {
+          el = DOM.get(v[1]);
+        }
+      }
+      if (el) {
+        var focusEditor = global$2.get(el.id || el.name);
+        if (el.id && focusEditor) {
+          focusEditor.focus();
+        } else {
+          global$4.setTimeout(function () {
+            if (!global$3.webkit) {
+              window.focus();
+            }
+            el.focus();
+          }, 10);
+        }
+        e.preventDefault();
+      }
+    }
+    editor.on('init', function () {
+      if (editor.inline) {
+        DOM.setAttrib(editor.getBody(), 'tabIndex', null);
+      }
+      editor.on('keyup', tabCancel);
+      if (global$3.gecko) {
+        editor.on('keypress keydown', tabHandler);
+      } else {
+        editor.on('keydown', tabHandler);
+      }
+    });
+  };
+  var $_6zogdykpjjgwed4h = { setup: setup };
 
-		// Find element to focus
-		if (e.shiftKey) {
-			if (v[0] == ':prev') {
-				el = find(-1);
-			} else {
-				el = DOM.get(v[0]);
-			}
-		} else {
-			if (v[1] == ':next') {
-				el = find(1);
-			} else {
-				el = DOM.get(v[1]);
-			}
-		}
-
-		if (el) {
-			var focusEditor = tinymce.get(el.id || el.name);
+  global.add('tabfocus', function (editor) {
+    $_6zogdykpjjgwed4h.setup(editor);
+  });
+  function Plugin () {
+  }
 
-			if (el.id && focusEditor) {
-				focusEditor.focus();
-			} else {
-				window.setTimeout(function() {
-					if (!tinymce.Env.webkit) {
-						window.focus();
-					}
-
-					el.focus();
-				}, 10);
-			}
-
-			e.preventDefault();
-		}
-	}
+  return Plugin;
 
-	editor.on('init', function() {
-		if (editor.inline) {
-			// Remove default tabIndex in inline mode
-			tinymce.DOM.setAttrib(editor.getBody(), 'tabIndex', null);
-		}
-
-		editor.on('keyup', tabCancel);
-
-		if (tinymce.Env.gecko) {
-			editor.on('keypress keydown', tabHandler);
-		} else {
-			editor.on('keydown', tabHandler);
-		}
-	});
-});
+}());
+})();