Allow File>Open File with no window open.

chrome/browser/app_controller_mac.mm

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/app_controller_mac.h"
 
 #include "base/command_line.h"
 #include "base/message_loop.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/app/chrome_dll_resource.h"
@@ skipping 103 matching lines @@
   Profile* default_profile = [self defaultProfile];
 
   NSInteger tag = [sender tag];
   switch (tag) {
     case IDC_NEW_WINDOW:
       Browser::OpenEmptyWindow(default_profile);
       break;
     case IDC_NEW_INCOGNITO_WINDOW:
       Browser::OpenURLOffTheRecord(default_profile, GURL());
       break;
+    case IDC_OPEN_FILE:
+      Browser::OpenEmptyWindow(default_profile);

[pink (ping after 24hrs), 2009/04/28 16:12:12]

are you sure this is synchronous?

[Avi (use Gerrit), 2009/04/28 16:15:56]

No. That's why I was trying it out to see if it worked. I'd imagine the browser
window creation is, even if the page loading isn't.

+      BrowserList::GetLastActive()->
+          ExecuteCommandWithDisposition(IDC_OPEN_FILE, CURRENT_TAB);
+      break;
   };
 }
 
 // NSApplication delegate method called when someone clicks on the
 // dock icon and there are no open windows.  To match standard mac
 // behavior, we should open a new window.
 - (BOOL)applicationShouldHandleReopen:(NSApplication*)theApplication
                     hasVisibleWindows:(BOOL)flag {
   // Don't do anything if there are visible windows.  This will cause
   // AppKit to unminimize the most recently minimized window.
   if (flag)
     return YES;
 
   // Otherwise open a new window.
   Browser::OpenEmptyWindow([self defaultProfile]);
 
   // We've handled the reopen event, so return NO to tell AppKit not
   // to do anything.
   return NO;
 }
 
 - (void)initMenuState {
   menuState_ = new CommandUpdater(NULL);
   menuState_->UpdateCommandEnabled(IDC_NEW_WINDOW, true);
   menuState_->UpdateCommandEnabled(IDC_NEW_INCOGNITO_WINDOW, true);
+  menuState_->UpdateCommandEnabled(IDC_OPEN_FILE, true);
   // TODO(pinkerton): ...more to come...
 }
 
 - (Profile*)defaultProfile {
   // TODO(jrg): Find a better way to get the "default" profile.
   if (g_browser_process->profile_manager())
     return* g_browser_process->profile_manager()->begin();
 
   return NULL;
 }
@@ skipping 32 matching lines @@
   for (NSString* filename in filenames) {
     NSURL* fileURL = [NSURL fileURLWithPath:filename];
     GURL gurl(base::SysNSStringToUTF8([fileURL absoluteString]));
     gurlVector.push_back(gurl);
   }
 
   OpenURLs(gurlVector);
 }
 
 @end