diff -r 000000000000 -r bca7a7e058a3 src/pyams_skin/resources/js/ext/tinymce/dev/classes/ui/PanelButton.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_skin/resources/js/ext/tinymce/dev/classes/ui/PanelButton.js	Thu Feb 13 11:43:31 2020 +0100
@@ -0,0 +1,114 @@
+/**
+ * PanelButton.js
+ *
+ * Copyright, Moxiecode Systems AB
+ * Released under LGPL License.
+ *
+ * License: http://www.tinymce.com/license
+ * Contributing: http://www.tinymce.com/contributing
+ */
+
+/**
+ * Creates a new panel button.
+ *
+ * @class tinymce.ui.PanelButton
+ * @extends tinymce.ui.Button
+ */
+define("tinymce/ui/PanelButton", [
+	"tinymce/ui/Button",
+	"tinymce/ui/FloatPanel"
+], function(Button, FloatPanel) {
+	"use strict";
+
+	return Button.extend({
+		/**
+		 * Shows the panel for the button.
+		 *
+		 * @method showPanel
+		 */
+		showPanel: function() {
+			var self = this, settings = self.settings;
+
+			self.active(true);
+
+			if (!self.panel) {
+				var panelSettings = settings.panel;
+
+				// Wrap panel in grid layout if type if specified
+				// This makes it possible to add forms or other containers directly in the panel option
+				if (panelSettings.type) {
+					panelSettings = {
+						layout: 'grid',
+						items: panelSettings
+					};
+				}
+
+				panelSettings.role = panelSettings.role || 'dialog';
+				panelSettings.popover = true;
+				panelSettings.autohide = true;
+				panelSettings.ariaRoot = true;
+
+				self.panel = new FloatPanel(panelSettings).on('hide', function() {
+					self.active(false);
+				}).on('cancel', function(e) {
+					e.stopPropagation();
+					self.focus();
+					self.hidePanel();
+				}).parent(self).renderTo(self.getContainerElm());
+
+				self.panel.fire('show');
+				self.panel.reflow();
+			} else {
+				self.panel.show();
+			}
+
+			self.panel.moveRel(self.getEl(), settings.popoverAlign || (self.isRtl() ? ['bc-tr', 'bc-tc'] : ['bc-tl', 'bc-tc']));
+		},
+
+		/**
+		 * Hides the panel for the button.
+		 *
+		 * @method hidePanel
+		 */
+		hidePanel: function() {
+			var self = this;
+
+			if (self.panel) {
+				self.panel.hide();
+			}
+		},
+
+		/**
+		 * Called after the control has been rendered.
+		 *
+		 * @method postRender
+		 */
+		postRender: function() {
+			var self = this;
+
+			self.aria('haspopup', true);
+
+			self.on('click', function(e) {
+				if (e.control === self) {
+					if (self.panel && self.panel.visible()) {
+						self.hidePanel();
+					} else {
+						self.showPanel();
+						self.panel.focus(!!e.aria);
+					}
+				}
+			});
+
+			return self._super();
+		},
+
+		remove: function() {
+			if (this.panel) {
+				this.panel.remove();
+				this.panel = null;
+			}
+
+			return this._super();
+		}
+	});
+});
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