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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "extensions/shell/app/shell_main_delegate.h"
      6 
      7 #include "base/command_line.h"
      8 #include "base/files/file_path.h"
      9 #include "base/logging.h"
     10 #include "base/path_service.h"
     11 #include "content/public/browser/browser_main_runner.h"
     12 #include "content/public/common/content_switches.h"
     13 #include "extensions/common/extension_paths.h"
     14 #include "extensions/shell/browser/default_shell_browser_main_delegate.h"
     15 #include "extensions/shell/browser/shell_content_browser_client.h"
     16 #include "extensions/shell/common/shell_content_client.h"
     17 #include "extensions/shell/renderer/shell_content_renderer_client.h"
     18 #include "ui/base/resource/resource_bundle.h"
     19 
     20 #if defined(OS_CHROMEOS)
     21 #include "chromeos/chromeos_paths.h"
     22 #endif
     23 
     24 #if !defined(DISABLE_NACL)
     25 #include "components/nacl/common/nacl_switches.h"
     26 #if defined(OS_LINUX)
     27 #include "components/nacl/common/nacl_paths.h"
     28 #include "components/nacl/zygote/nacl_fork_delegate_linux.h"
     29 #endif  // OS_LINUX
     30 #endif  // !DISABLE_NACL
     31 
     32 namespace {
     33 
     34 void InitLogging() {
     35   base::FilePath log_filename;
     36   PathService::Get(base::DIR_EXE, &log_filename);
     37   log_filename = log_filename.AppendASCII("app_shell.log");
     38   logging::LoggingSettings settings;
     39   settings.logging_dest = logging::LOG_TO_ALL;
     40   settings.log_file = log_filename.value().c_str();
     41   settings.delete_old = logging::DELETE_OLD_LOG_FILE;
     42   logging::InitLogging(settings);
     43   logging::SetLogItems(true, true, true, true);
     44 }
     45 
     46 }  // namespace
     47 
     48 namespace extensions {
     49 
     50 ShellMainDelegate::ShellMainDelegate() {
     51 }
     52 
     53 ShellMainDelegate::~ShellMainDelegate() {
     54 }
     55 
     56 bool ShellMainDelegate::BasicStartupComplete(int* exit_code) {
     57   InitLogging();
     58   content_client_.reset(CreateContentClient());
     59   SetContentClient(content_client_.get());
     60 
     61 #if defined(OS_CHROMEOS)
     62   chromeos::RegisterPathProvider();
     63 #endif
     64 #if !defined(DISABLE_NACL) && defined(OS_LINUX)
     65   nacl::RegisterPathProvider();
     66 #endif
     67   extensions::RegisterPathProvider();
     68   return false;
     69 }
     70 
     71 void ShellMainDelegate::PreSandboxStartup() {
     72   std::string process_type =
     73       CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
     74           switches::kProcessType);
     75   if (ProcessNeedsResourceBundle(process_type))
     76     InitializeResourceBundle();
     77 }
     78 
     79 content::ContentBrowserClient* ShellMainDelegate::CreateContentBrowserClient() {
     80   browser_client_.reset(CreateShellContentBrowserClient());
     81   return browser_client_.get();
     82 }
     83 
     84 content::ContentRendererClient*
     85 ShellMainDelegate::CreateContentRendererClient() {
     86   renderer_client_.reset(CreateShellContentRendererClient());
     87   return renderer_client_.get();
     88 }
     89 
     90 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
     91 void ShellMainDelegate::ZygoteStarting(
     92     ScopedVector<content::ZygoteForkDelegate>* delegates) {
     93 #if !defined(DISABLE_NACL)
     94   nacl::AddNaClZygoteForkDelegates(delegates);
     95 #endif  // DISABLE_NACL
     96 }
     97 #endif  // OS_POSIX && !OS_MACOSX && !OS_ANDROID
     98 
     99 content::ContentClient* ShellMainDelegate::CreateContentClient() {
    100   return new ShellContentClient();
    101 }
    102 
    103 content::ContentBrowserClient*
    104 ShellMainDelegate::CreateShellContentBrowserClient() {
    105   return new ShellContentBrowserClient(new DefaultShellBrowserMainDelegate());
    106 }
    107 
    108 content::ContentRendererClient*
    109 ShellMainDelegate::CreateShellContentRendererClient() {
    110   return new ShellContentRendererClient();
    111 }
    112 
    113 void ShellMainDelegate::InitializeResourceBundle() {
    114   base::FilePath extensions_shell_and_test_pak_path;
    115   PathService::Get(base::DIR_MODULE, &extensions_shell_and_test_pak_path);
    116   ui::ResourceBundle::InitSharedInstanceWithPakPath(
    117       extensions_shell_and_test_pak_path.AppendASCII(
    118           "extensions_shell_and_test.pak"));
    119 }
    120 
    121 // static
    122 bool ShellMainDelegate::ProcessNeedsResourceBundle(
    123     const std::string& process_type) {
    124   // The browser process has no process type flag, but needs resources.
    125   // On Linux the zygote process opens the resources for the renderers.
    126   return process_type.empty() ||
    127          process_type == switches::kZygoteProcess ||
    128          process_type == switches::kRendererProcess ||
    129 #if !defined(DISABLE_NACL)
    130          process_type == switches::kNaClLoaderProcess ||
    131 #endif
    132          process_type == switches::kUtilityProcess;
    133 }
    134 
    135 }  // namespace extensions
    136