Minimal athena shell main

apps/shell/app/shell_main.cc

 // Copyright (c) 2013 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.
 
 #include "apps/shell/app/shell_main_delegate.h"
+#include "apps/shell/browser/shell_browser_main_parts.h"
+#include "apps/shell/browser/shell_extension_system.h"
+#include "apps/shell/common/shell_delegate.h"
+#include "base/command_line.h"
+#include "base/file_util.h"
+#include "base/files/file_path.h"
 #include "content/public/app/content_main.h"
 
 #if defined(OS_WIN)
 #include "content/public/app/startup_helper_win.h"
 #include "sandbox/win/src/sandbox_types.h"
 #endif
 
+class AppShellDelegate : public apps::ShellDelegate {

[oshima, 2014/05/07 22:08:03]

I'm not sure where this code should live. Maybe in apps/shell/browser?

[James Cook, 2014/05/07 23:42:45]

The final code should live in apps/shell/browser, since ExtensionSystem (and
ShellExtensionSystem) are browser-process concepts.  But see later comment about
just using a callback.

[oshima, 2014/05/08 21:12:37]

moved to apps/shell/browser/shell_app_starter.

+ public:
+  AppShellDelegate() {}
+  virtual ~AppShellDelegate() {}
+
+  virtual void Start(content::BrowserContext* browser_context) OVERRIDE {
+    const std::string kAppSwitch = "app";
+    CommandLine* command_line = CommandLine::ForCurrentProcess();
+    if (command_line->HasSwitch(kAppSwitch)) {
+      base::FilePath app_dir(command_line->GetSwitchValueNative(kAppSwitch));
+      base::FilePath app_absolute_dir = base::MakeAbsoluteFilePath(app_dir);
+
+      extensions::ShellExtensionSystem* extension_system =
+          static_cast<extensions::ShellExtensionSystem*>(
+              extensions::ExtensionSystem::Get(browser_context));

[oshima, 2014/05/07 22:08:03]

Not sure if this is right thing to do either....

[James Cook, 2014/05/07 23:42:45]

The cast is fine.  It's just convenient to put LoadAndLaunchApp in the
ShellExtensionSystem class.  And this is the right way to look up the
ShellExtensionSystem.

+      extension_system->LoadAndLaunchApp(app_absolute_dir);
+    } else {
+      LOG(ERROR) << "--" << kAppSwitch << " unset; boredom is in your future";
+    }
+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(AppShellDelegate);
+};
+
 #if defined(OS_WIN)
 int APIENTRY wWinMain(HINSTANCE instance, HINSTANCE, wchar_t*, int) {
 #else
 int main(int argc, const char** argv) {
 #endif
-  apps::ShellMainDelegate delegate;
+  AppShellDelegate app_shell_delegate;
+  apps::ShellMainDelegate delegate(&app_shell_delegate);
   content::ContentMainParams params(&delegate);
 
 #if defined(OS_WIN)
   sandbox::SandboxInterfaceInfo sandbox_info = {0};
   content::InitializeSandboxInfo(&sandbox_info);
   params.instance = instance;
   params.sandbox_info = &sandbox_info;
 #else
   params.argc = argc;
   params.argv = argv;
 #endif
 
   return content::ContentMain(params);
 }