closes #4505

public/language/en_GB/global.json

@@ -116,5 +116,7 @@
 	"enter_page_number": "Enter page number",
 	"upload_file": "Upload file",
 	"upload": "Upload",
-	"allowed-file-types": "Allowed file types are %1"
+	"allowed-file-types": "Allowed file types are %1",
+
+	"unsaved-changes": "You have unsaved changes. Are you sure you wish to navigate away?"
 }

public/src/admin/appearance/customise.js

@@ -16,6 +16,8 @@ define('admin/appearance/customise', ['admin/settings'], function(Settings) {
 			customCSS.getSession().setMode("ace/mode/css");	
 
 			customCSS.on('change', function(e) {
+				app.flags = app.flags || {};
+				app.flags._unsaved = true;
 			    $('#customCSS-holder').val(customCSS.getValue());
 			}); 
 
@@ -23,6 +25,8 @@ define('admin/appearance/customise', ['admin/settings'], function(Settings) {
 			customHTML.getSession().setMode("ace/mode/html");
 
 			customHTML.on('change', function(e) {
+				app.flags = app.flags || {};
+				app.flags._unsaved = true;
 			    $('#customHTML-holder').val(customHTML.getValue());
 			}); 
 		});

public/src/admin/manage/category.js

@@ -18,6 +18,9 @@ define('admin/manage/category', [
 			if (cid) {
 				modified_categories[cid] = modified_categories[cid] || {};
 				modified_categories[cid][$(el).attr('data-name')] = $(el).val();
+
+				app.flags = app.flags || {};
+				app.flags._unsaved = true;
 			}
 		}
 
@@ -31,6 +34,7 @@ define('admin/manage/category', [
 					}
 
 					if (result && result.length) {
+						app.flags._unsaved = false;
 						app.alert({
 							title: 'Updated Categories',
 							message: 'Category IDs ' + result.join(', ') + ' was successfully updated.',

public/src/admin/settings.js

@@ -27,6 +27,12 @@ define('admin/settings', ['uploader'], function(uploader) {
 			revertBtn = $('#revert'),
 			x, key, inputType, field;
 
+		// Handle unsaved changes
+		$(fields).on('change', function() {
+			app.flags = app.flags || {};
+			app.flags._unsaved = true;
+		});
+
 		for (x = 0; x < numFields; x++) {
 			field = fields.eq(x);
 			key = field.attr('data-field');
@@ -77,6 +83,9 @@ define('admin/settings', ['uploader'], function(uploader) {
 						type: 'danger'
 					});
 				}
+
+				app.flags._unsaved = false;
+
 				app.alert({
 					alert_id: 'config_status',
 					timeout: 2500,

public/src/ajaxify.js

@@ -1,11 +1,9 @@
 "use strict";
+/*global app, bootbox, templates, socket, config, RELATIVE_PATH*/
 
 var ajaxify = ajaxify || {};
 
 $(document).ready(function() {
-
-	/*global app, templates, socket, config, RELATIVE_PATH*/
-
 	var location = document.location || window.location;
 	var rootUrl = location.protocol + '//' + (location.hostname || location.host) + (location.port ? ':' + location.port : '');
 	var apiXHR = null;
@@ -295,6 +293,32 @@ $(document).ready(function() {
 
 		// Enhancing all anchors to ajaxify...
 		$(document.body).on('click', 'a', function (e) {
+			var _self = this;
+			var process = function() {
+				if (!e.ctrlKey && !e.shiftKey && !e.metaKey && e.which === 1) {
+					if (internalLink) {
+						var pathname = this.href.replace(rootUrl + RELATIVE_PATH + '/', '');
+
+						// Special handling for urls with hashes
+						if (window.location.pathname === this.pathname && this.hash.length) {
+							window.location.hash = this.hash;
+						} else {
+							if (ajaxify.go(pathname)) {
+								e.preventDefault();
+							}
+						}
+					} else if (window.location.pathname !== '/outgoing') {
+						if (config.openOutgoingLinksInNewTab) {
+							window.open(this.href, '_blank');
+							e.preventDefault();
+						} else if (config.useOutgoingLinksPage) {
+							ajaxify.go('outgoing?url=' + encodeURIComponent(this.href));
+							e.preventDefault();
+						}
+					}
+				}
+			};
+
 			if (this.target !== '' || (this.protocol !== 'http:' && this.protocol !== 'https:')) {
 				return;
 			}
@@ -311,6 +335,7 @@ $(document).ready(function() {
 				}
 			}
 
+			// Default behaviour for rss feeds
 			if (internalLink && $(this).attr('href').endsWith('.rss')) {
 				return;
 			}
@@ -319,28 +344,19 @@ $(document).ready(function() {
 				return e.preventDefault();
 			}
 
-			if (!e.ctrlKey && !e.shiftKey && !e.metaKey && e.which === 1) {
-				if (internalLink) {
-					var pathname = this.href.replace(rootUrl + RELATIVE_PATH + '/', '');
-
-					// Special handling for urls with hashes
-					if (window.location.pathname === this.pathname && this.hash.length) {
-						window.location.hash = this.hash;
-					} else {
-						if (ajaxify.go(pathname)) {
-							e.preventDefault();
+			if (app.flags && app.flags.hasOwnProperty('_unsaved') && app.flags._unsaved === true) {
+				translator.translate('[[global:unsaved-changes]]', function(text) {
+					bootbox.confirm(text, function(navigate) {
+						if (navigate) {
+							app.flags._unsaved = false;
+							process.call(_self);
 						}
-					}
-				} else if (window.location.pathname !== '/outgoing') {
-					if (config.openOutgoingLinksInNewTab) {
-						window.open(this.href, '_blank');
-						e.preventDefault();
-					} else if (config.useOutgoingLinksPage) {
-						ajaxify.go('outgoing?url=' + encodeURIComponent(this.href));
-						e.preventDefault();
-					}
-				}
+					});
+				});
+				return e.preventDefault();
 			}
+
+			process.call(_self);
 		});
 	}
 

public/src/modules/settings.js

@@ -473,6 +473,12 @@ define('settings', function () {
 				});
 				$(window).trigger('action:admin.settingsLoaded');
 
+				// Handle unsaved changes
+				$(formEl).on('change', 'input, select, textarea', function() {
+					app.flags = app.flags || {};
+					app.flags._unsaved = true;
+				});
+
 				callback(null, values);
 			});
 		},
@@ -498,6 +504,9 @@ define('settings', function () {
 					hash: hash,
 					values: values
 				}, function (err) {
+					// Remove unsaved flag to re-enable ajaxify
+					app.flags._unsaved = false;
+
 					if (typeof callback === 'function') {
 						callback();
 					} else {

src/views/admin/header.tpl

@@ -15,7 +15,8 @@
 		var app = {
 			template: "{template.name}",
 			user: JSON.parse('{{userJSON}}'),
-			config: JSON.parse(decodeURIComponent("{{adminConfigJSON}}"))
+			config: JSON.parse(decodeURIComponent("{{adminConfigJSON}}")),
+			flags: {}
 		};
 	</script>