Improve error reporting when using invalid argument types for dialog API methods

diff --git a/lib/browser/api/dialog.js b/lib/browser/api/dialog.js
index 414cd60..3a9d120 100644 (file)
--- a/lib/browser/api/dialog.js
+++ b/lib/browser/api/dialog.js
@@ -67,9 +67,13 @@ module.exports = {
     }
     if (options.title == null) {
       options.title = '';
+    } else if (typeof options.title !== 'string') {
+      throw new TypeError('Title need to be string');
     }
     if (options.defaultPath == null) {
       options.defaultPath = '';
+    } else if (typeof options.defaultPath !== 'string') {
+      throw new TypeError('Default path need to be string');
     }
     if (options.filters == null) {
       options.filters = [];
@@ -91,9 +95,13 @@ module.exports = {
     }
     if (options.title == null) {
       options.title = '';
+    } else if (typeof options.title !== 'string') {
+      throw new TypeError('Title need to be string');
     }
     if (options.defaultPath == null) {
       options.defaultPath = '';
+    } else if (typeof options.defaultPath !== 'string') {
+      throw new TypeError('Default path need to be string');
     }
     if (options.filters == null) {
       options.filters = [];
@@ -125,12 +133,18 @@ module.exports = {
     }
     if (options.title == null) {
       options.title = '';
+    } else if (typeof options.title !== 'string') {
+      throw new TypeError('Title need to be string');
     }
     if (options.message == null) {
       options.message = '';
+    } else if (typeof options.message !== 'string') {
+      throw new TypeError('Message need to be string');
     }
     if (options.detail == null) {
       options.detail = '';
+    } else if (typeof options.detail !== 'string') {
+      throw new TypeError('Detail need to be string');
     }
     if (options.icon == null) {
       options.icon = null;