Add API to SendActionToFirstResponder.

It's important to bind application menu items to curtain actions of
first responder, like 'quit', 'minimize', 'copy' etc. This API gives
developers ability to do most of them in javascript.

browser/api/atom_api_menu.cc

@@ -379,6 +379,8 @@ void Menu::Initialize(v8::Handle<v8::Object> target) {
   target->Set(v8::String::NewSymbol("Menu"), t->GetFunction());
 
   NODE_SET_METHOD(target, "setApplicationMenu", SetApplicationMenu);
+  NODE_SET_METHOD(
+      target, "sendActionToFirstResponder", SendActionToFirstResponder);
 }
 
 }  // namespace api

browser/api/atom_api_menu.h

@@ -69,6 +69,8 @@ class Menu : public EventEmitter,
   static v8::Handle<v8::Value> Popup(const v8::Arguments &args);
 
   static v8::Handle<v8::Value> SetApplicationMenu(const v8::Arguments &args);
+  static v8::Handle<v8::Value> SendActionToFirstResponder(
+      const v8::Arguments &args);
 
   DISALLOW_COPY_AND_ASSIGN(Menu);
 };

browser/api/atom_api_menu_mac.h

@@ -31,6 +31,9 @@ class MenuMac : public Menu {
   // submenus and set their titles.
   static void FixMenuTitles(NSMenu* menu);
 
+  // Fake sending an action from the application menu.
+  static void SendActionToFirstResponder(const std::string& action);
+
   DISALLOW_COPY_AND_ASSIGN(MenuMac);
 };
 

browser/api/atom_api_menu_mac.mm

@@ -6,6 +6,7 @@
 
 #include "base/message_loop.h"
 #include "base/mac/scoped_sending_event.h"
+#include "base/strings/sys_string_conversions.h"
 #include "browser/native_window.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_view.h"
@@ -71,6 +72,14 @@ void MenuMac::FixMenuTitles(NSMenu* menu) {
   }
 }
 
+// static
+void MenuMac::SendActionToFirstResponder(const std::string& action) {
+  SEL selector = NSSelectorFromString(base::SysUTF8ToNSString(action));
+  [[NSApplication sharedApplication] sendAction:selector
+                                             to:nil
+                                           from:[NSApp mainMenu]];
+}
+
 // static
 v8::Handle<v8::Value> Menu::SetApplicationMenu(const v8::Arguments &args) {
   v8::HandleScope scope;
@@ -94,6 +103,20 @@ v8::Handle<v8::Value> Menu::SetApplicationMenu(const v8::Arguments &args) {
   return v8::Undefined();
 }
 
+// static
+v8::Handle<v8::Value> Menu::SendActionToFirstResponder(
+    const v8::Arguments &args) {
+  v8::HandleScope scope;
+
+  if (!args[0]->IsString())
+    return node::ThrowTypeError("Bad argument");
+
+  std::string action(*v8::String::Utf8Value(args[0]));
+  MenuMac::SendActionToFirstResponder(action);
+
+  return v8::Undefined();
+}
+
 // static
 Menu* Menu::Create(v8::Handle<v8::Object> wrapper) {
   return new MenuMac(wrapper);

browser/api/lib/menu.coffee

@@ -28,5 +28,6 @@ Menu::appendSubMenu = (args...) -> @insertSubMenu -1, args...
 Menu.setApplicationMenu = (menu) ->
   throw new TypeError('Invalid menu') unless menu?.constructor is Menu
   bindings.setApplicationMenu menu
+Menu.sendActionToFirstResponder = bindings.sendActionToFirstResponder
 
 module.exports = Menu