--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_skin/resources/js/ext/tinymce/dev/plugins/tabfocus/plugin.js	Thu Feb 13 11:43:31 2020 +0100
@@ -0,0 +1,120 @@
+/**
+ * plugin.js
+ *
+ * Copyright, Moxiecode Systems AB
+ * Released under LGPL License.
+ *
+ * License: http://www.tinymce.com/license
+ * Contributing: http://www.tinymce.com/contributing
+ */
+
+/*global tinymce:true */
+
+tinymce.PluginManager.add('tabfocus', function(editor) {
+	var DOM = tinymce.DOM, each = tinymce.each, explode = tinymce.explode;
+
+	function tabCancel(e) {
+		if (e.keyCode === 9 && !e.ctrlKey && !e.altKey && !e.metaKey) {
+			e.preventDefault();
+		}
+	}
+
+	function tabHandler(e) {
+		var x, el, v, i;
+
+		if (e.keyCode !== 9 || 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) && tinymce.get(e.id) && el.tabIndex != -1 && canSelectRecursive(el);
+			}
+
+			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';
+		}
+
+		// 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);
+
+			if (el.id && focusEditor) {
+				focusEditor.focus();
+			} else {
+				window.setTimeout(function() {
+					if (!tinymce.Env.webkit) {
+						window.focus();
+					}
+
+					el.focus();
+				}, 10);
+			}
+
+			e.preventDefault();
+		}
+	}
+
+	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);
+		}
+	});
+});