// Copyright (c) 2011 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 "chrome/browser/browser_main_posix.h"

#import <Cocoa/Cocoa.h>

#include "base/command_line.h"
#include "base/debug/debugger.h"
#include "base/file_path.h"
#include "base/mac/mac_util.h"
#include "base/memory/scoped_nsobject.h"
#include "base/path_service.h"
#include "crypto/nss_util.h"
#include "chrome/app/breakpad_mac.h"
#import "chrome/browser/app_controller_mac.h"
#include "chrome/browser/browser_main_win.h"
#import "chrome/browser/chrome_browser_application_mac.h"
#import "chrome/browser/cocoa/keystone_glue.h"
#include "chrome/browser/metrics/metrics_service.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/chrome_switches.h"
#include "content/common/main_function_params.h"
#include "content/common/result_codes.h"
#include "net/socket/client_socket_factory.h"
#include "ui/base/l10n/l10n_util_mac.h"
#include "ui/base/resource/resource_bundle.h"

void DidEndMainMessageLoop() {
  AppController* appController = [NSApp delegate];
  [appController didEndMainMessageLoop];
}

void RecordBreakpadStatusUMA(MetricsService* metrics) {
  metrics->RecordBreakpadRegistration(IsCrashReporterEnabled());
  metrics->RecordBreakpadHasDebugger(base::debug::BeingDebugged());
}

void RecordBrowserStartupTime() {
  // Not implemented on Mac for now.
}

void WarnAboutMinimumSystemRequirements() {
  // Nothing to check for on Mac right now.
}

// From browser_main_win.h, stubs until we figure out the right thing...

int DoUninstallTasks(bool chrome_still_running) {
  return ResultCodes::NORMAL_EXIT;
}

int HandleIconsCommands(const CommandLine& parsed_command_line) {
  return 0;
}

bool CheckMachineLevelInstall() {
  return false;
}

void PrepareRestartOnCrashEnviroment(const CommandLine& parsed_command_line) {
}

// BrowserMainPartsMac ---------------------------------------------------------

class BrowserMainPartsMac : public BrowserMainPartsPosix {
 public:
  explicit BrowserMainPartsMac(const MainFunctionParams& parameters)
      : BrowserMainPartsPosix(parameters) {}

 protected:
  virtual void PreEarlyInitialization() {
    BrowserMainPartsPosix::PreEarlyInitialization();

    if (base::mac::WasLaunchedAsHiddenLoginItem()) {
      CommandLine* singleton_command_line = CommandLine::ForCurrentProcess();
      singleton_command_line->AppendSwitch(switches::kNoStartupWindow);
    }
  }

  virtual void PreMainMessageLoopStart() {
    BrowserMainPartsPosix::PreMainMessageLoopStart();

    // Tell Cooca to finish its initalization, which we want to do manually
    // instead of calling NSApplicationMain(). The primary reason is that NSAM()
    // never returns, which would leave all the objects currently on the stack
    // in scoped_ptrs hanging and never cleaned up. We then load the main nib
    // directly. The main event loop is run from common code using the
    // MessageLoop API, which works out ok for us because it's a wrapper around
    // CFRunLoop.

    // Initialize NSApplication using the custom subclass.
    [BrowserCrApplication sharedApplication];

    // If ui_task is not NULL, the app is actually a browser_test, so startup is
    // handled outside of BrowserMain (which is what called this).
    if (!parameters().ui_task) {
      // The browser process only wants to support the language Cocoa will use,
      // so force the app locale to be overriden with that value.
      l10n_util::OverrideLocaleWithCocoaLocale();

      // Before we load the nib, we need to start up the resource bundle so we
      // have the strings avaiable for localization.
      // TODO(markusheintz): Read preference pref::kApplicationLocale in order
      // to enforce the application locale.
      const std::string loaded_locale =
          ResourceBundle::InitSharedInstance(std::string());
      CHECK(!loaded_locale.empty()) << "Default locale could not be found";

      FilePath resources_pack_path;
      PathService::Get(chrome::FILE_RESOURCES_PACK, &resources_pack_path);
      ResourceBundle::AddDataPackToSharedInstance(resources_pack_path);
    }

    // Now load the nib (from the right bundle).
    scoped_nsobject<NSNib>
        nib([[NSNib alloc] initWithNibNamed:@"MainMenu"
                                     bundle:base::mac::MainAppBundle()]);
    // TODO(viettrungluu): crbug.com/20504 - This currently leaks, so if you
    // change this, you'll probably need to change the Valgrind suppression.
    [nib instantiateNibWithOwner:NSApp topLevelObjects:nil];
    // Make sure the app controller has been created.
    DCHECK([NSApp delegate]);

    // This is a no-op if the KeystoneRegistration framework is not present.
    // The framework is only distributed with branded Google Chrome builds.
    [[KeystoneGlue defaultKeystoneGlue] registerWithKeystone];

    // Prevent Cocoa from turning command-line arguments into
    // |-application:openFiles:|, since we already handle them directly.
    [[NSUserDefaults standardUserDefaults]
        setObject:@"NO" forKey:@"NSTreatUnknownArgumentsAsOpen"];
  }

 private:
  virtual void InitializeSSL() {
    // Use NSS for SSL by default.
    // The default client socket factory uses NSS for SSL by default on Mac.
    if (parsed_command_line().HasSwitch(switches::kUseSystemSSL)) {
      net::ClientSocketFactory::UseSystemSSL();
    } else {
      // We want to be sure to init NSPR on the main thread.
      crypto::EnsureNSPRInit();
    }
  }
};

// static
BrowserMainParts* BrowserMainParts::CreateBrowserMainParts(
    const MainFunctionParams& parameters) {
  return new BrowserMainPartsMac(parameters);
}