diff -r 000000000000 -r bca7a7e058a3 src/pyams_skin/resources/js/ext/tinymce/dev/plugins/autosave/plugin.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/pyams_skin/resources/js/ext/tinymce/dev/plugins/autosave/plugin.js	Thu Feb 13 11:43:31 2020 +0100
@@ -0,0 +1,165 @@
+/**
+ * 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 */
+
+// Internal unload handler will be called before the page is unloaded
+// Needs to be outside the plugin since it would otherwise keep
+// a reference to editor in closue scope
+/*eslint no-func-assign:0 */
+tinymce._beforeUnloadHandler = function() {
+	var msg;
+
+	tinymce.each(tinymce.editors, function(editor) {
+		// Store a draft for each editor instance
+		if (editor.plugins.autosave) {
+			editor.plugins.autosave.storeDraft();
+		}
+
+		// Setup a return message if the editor is dirty
+		if (!msg && editor.isDirty() && editor.getParam("autosave_ask_before_unload", true)) {
+			msg = editor.translate("You have unsaved changes are you sure you want to navigate away?");
+		}
+	});
+
+	return msg;
+};
+
+tinymce.PluginManager.add('autosave', function(editor) {
+	var settings = editor.settings, LocalStorage = tinymce.util.LocalStorage, prefix, started;
+
+	prefix = settings.autosave_prefix || 'tinymce-autosave-{path}{query}-{id}-';
+	prefix = prefix.replace(/\{path\}/g, document.location.pathname);
+	prefix = prefix.replace(/\{query\}/g, document.location.search);
+	prefix = prefix.replace(/\{id\}/g, editor.id);
+
+	function parseTime(time, defaultTime) {
+		var multipels = {
+			s: 1000,
+			m: 60000
+		};
+
+		time = /^(\d+)([ms]?)$/.exec('' + (time || defaultTime));
+
+		return (time[2] ? multipels[time[2]] : 1) * parseInt(time, 10);
+	}
+
+	function hasDraft() {
+		var time = parseInt(LocalStorage.getItem(prefix + "time"), 10) || 0;
+
+		if (new Date().getTime() - time > settings.autosave_retention) {
+			removeDraft(false);
+			return false;
+		}
+
+		return true;
+	}
+
+	function removeDraft(fire) {
+		LocalStorage.removeItem(prefix + "draft");
+		LocalStorage.removeItem(prefix + "time");
+
+		if (fire !== false) {
+			editor.fire('RemoveDraft');
+		}
+	}
+
+	function storeDraft() {
+		if (!isEmpty() && editor.isDirty()) {
+			LocalStorage.setItem(prefix + "draft", editor.getContent({format: 'raw', no_events: true}));
+			LocalStorage.setItem(prefix + "time", new Date().getTime());
+			editor.fire('StoreDraft');
+		}
+	}
+
+	function restoreDraft() {
+		if (hasDraft()) {
+			editor.setContent(LocalStorage.getItem(prefix + "draft"), {format: 'raw'});
+			editor.fire('RestoreDraft');
+		}
+	}
+
+	function startStoreDraft() {
+		if (!started) {
+			setInterval(function() {
+				if (!editor.removed) {
+					storeDraft();
+				}
+			}, settings.autosave_interval);
+
+			started = true;
+		}
+	}
+
+	settings.autosave_interval = parseTime(settings.autosave_interval, '30s');
+	settings.autosave_retention = parseTime(settings.autosave_retention, '20m');
+
+	function postRender() {
+		var self = this;
+
+		self.disabled(!hasDraft());
+
+		editor.on('StoreDraft RestoreDraft RemoveDraft', function() {
+			self.disabled(!hasDraft());
+		});
+
+		startStoreDraft();
+	}
+
+	function restoreLastDraft() {
+		editor.undoManager.beforeChange();
+		restoreDraft();
+		removeDraft();
+		editor.undoManager.add();
+	}
+
+	editor.addButton('restoredraft', {
+		title: 'Restore last draft',
+		onclick: restoreLastDraft,
+		onPostRender: postRender
+	});
+
+	editor.addMenuItem('restoredraft', {
+		text: 'Restore last draft',
+		onclick: restoreLastDraft,
+		onPostRender: postRender,
+		context: 'file'
+	});
+
+	function isEmpty(html) {
+		var forcedRootBlockName = editor.settings.forced_root_block;
+
+		html = tinymce.trim(typeof html == "undefined" ? editor.getBody().innerHTML : html);
+
+		return html === '' || new RegExp(
+			'^<' + forcedRootBlockName + '[^>]*>((\u00a0|&nbsp;|[ \t]|<br[^>]*>)+?|)<\/' + forcedRootBlockName + '>|<br>$', 'i'
+		).test(html);
+	}
+
+	if (editor.settings.autosave_restore_when_empty !== false) {
+		editor.on('init', function() {
+			if (hasDraft() && isEmpty()) {
+				restoreDraft();
+			}
+		});
+
+		editor.on('saveContent', function() {
+			removeDraft();
+		});
+	}
+
+	window.onbeforeunload = tinymce._beforeUnloadHandler;
+
+	this.hasDraft = hasDraft;
+	this.storeDraft = storeDraft;
+	this.restoreDraft = restoreDraft;
+	this.removeDraft = removeDraft;
+	this.isEmpty = isEmpty;
+});
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