Create 1453 release branch for CEF3.

git-svn-id: https://chromiumembedded.googlecode.com/svn/branches/1453@1183 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

cef3/libcef/browser/context.cc

@@ -0,0 +1,364 @@
+// Copyright (c) 2012 The Chromium Embedded Framework 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 "libcef/browser/context.h"
+#include "libcef/browser/browser_context.h"
+#include "libcef/browser/browser_host_impl.h"
+#include "libcef/browser/browser_info.h"
+#include "libcef/browser/browser_main.h"
+#include "libcef/browser/browser_message_loop.h"
+#include "libcef/browser/content_browser_client.h"
+#include "libcef/browser/scheme_registration.h"
+#include "libcef/browser/thread_util.h"
+#include "libcef/browser/trace_subscriber.h"
+#include "libcef/common/main_delegate.h"
+#include "libcef/renderer/content_renderer_client.h"
+
+#include "base/bind.h"
+#include "base/command_line.h"
+#include "base/file_util.h"
+#include "base/synchronization/waitable_event.h"
+#include "content/public/app/content_main.h"
+#include "content/public/app/content_main_runner.h"
+#include "content/public/browser/render_process_host.h"
+#include "content/public/common/content_switches.h"
+#include "ui/base/ui_base_switches.h"
+
+#if defined(OS_MACOSX)
+#include "libcef/browser/application_mac.h"
+#endif
+
+#if defined(OS_WIN)
+#include "content/public/app/startup_helper_win.h"
+#include "sandbox/win/src/sandbox_types.h"
+#endif
+
+// Global CefContext pointer
+CefRefPtr<CefContext> _Context;
+
+
+int CefExecuteProcess(const CefMainArgs& args,
+                      CefRefPtr<CefApp> application) {
+  CommandLine command_line(CommandLine::NO_PROGRAM);
+#if defined(OS_WIN)
+  command_line.ParseFromString(::GetCommandLineW());
+#else
+  command_line.InitFromArgv(args.argc, args.argv);
+#endif
+
+  // If no process type is specified then it represents the browser process and
+  // we do nothing.
+  std::string process_type =
+      command_line.GetSwitchValueASCII(switches::kProcessType);
+  if (process_type.empty())
+    return -1;
+
+#if defined(OS_MACOSX)
+  // Create the CefCrApplication instance.
+  CefCrApplicationCreate();
+#endif
+
+  CefMainDelegate main_delegate(application);
+
+  // Execute the secondary process.
+#if defined(OS_WIN)
+  sandbox::SandboxInterfaceInfo sandbox_info = {0};
+  content::InitializeSandboxInfo(&sandbox_info);
+
+  return content::ContentMain(args.instance, &sandbox_info, &main_delegate);
+#else
+  return content::ContentMain(args.argc, const_cast<const char**>(args.argv),
+                              &main_delegate);
+#endif
+}
+
+bool CefInitialize(const CefMainArgs& args,
+                   const CefSettings& settings,
+                   CefRefPtr<CefApp> application) {
+  // Return true if the global context already exists.
+  if (_Context.get())
+    return true;
+
+  if (settings.size != sizeof(cef_settings_t)) {
+    NOTREACHED() << "invalid CefSettings structure size";
+    return false;
+  }
+
+  // Create the new global context object.
+  _Context = new CefContext();
+
+  // Initialize the global context.
+  return _Context->Initialize(args, settings, application);
+}
+
+void CefShutdown() {
+  // Verify that the context is in a valid state.
+  if (!CONTEXT_STATE_VALID()) {
+    NOTREACHED() << "context not valid";
+    return;
+  }
+
+  // Must always be called on the same thread as Initialize.
+  if (!_Context->OnInitThread()) {
+    NOTREACHED() << "called on invalid thread";
+    return;
+  }
+
+  // Shut down the global context. This will block until shutdown is complete.
+  _Context->Shutdown();
+
+  // Delete the global context object.
+  _Context = NULL;
+}
+
+void CefDoMessageLoopWork() {
+  // Verify that the context is in a valid state.
+  if (!CONTEXT_STATE_VALID()) {
+    NOTREACHED() << "context not valid";
+    return;
+  }
+
+  // Must always be called on the same thread as Initialize.
+  if (!_Context->OnInitThread()) {
+    NOTREACHED() << "called on invalid thread";
+    return;
+  }
+
+  CefBrowserMessageLoop::current()->DoMessageLoopIteration();
+}
+
+void CefRunMessageLoop() {
+  // Verify that the context is in a valid state.
+  if (!CONTEXT_STATE_VALID()) {
+    NOTREACHED() << "context not valid";
+    return;
+  }
+
+  // Must always be called on the same thread as Initialize.
+  if (!_Context->OnInitThread()) {
+    NOTREACHED() << "called on invalid thread";
+    return;
+  }
+
+  CefBrowserMessageLoop::current()->RunMessageLoop();
+}
+
+void CefQuitMessageLoop() {
+  // Verify that the context is in a valid state.
+  if (!CONTEXT_STATE_VALID()) {
+    NOTREACHED() << "context not valid";
+    return;
+  }
+
+  // Must always be called on the same thread as Initialize.
+  if (!_Context->OnInitThread()) {
+    NOTREACHED() << "called on invalid thread";
+    return;
+  }
+
+  CefBrowserMessageLoop::current()->Quit();
+}
+
+
+// CefContext
+
+CefContext::CefContext()
+  : initialized_(false),
+    shutting_down_(false),
+    init_thread_id_(0) {
+}
+
+CefContext::~CefContext() {
+  if (!shutting_down_)
+    Shutdown();
+}
+
+bool CefContext::Initialize(const CefMainArgs& args,
+                            const CefSettings& settings,
+                            CefRefPtr<CefApp> application) {
+  init_thread_id_ = base::PlatformThread::CurrentId();
+  settings_ = settings;
+
+  cache_path_ = base::FilePath(CefString(&settings.cache_path));
+  if (!cache_path_.empty() &&
+      !file_util::DirectoryExists(cache_path_) &&
+      !file_util::CreateDirectory(cache_path_)) {
+    NOTREACHED() << "The cache_path directory could not be created";
+    cache_path_ = base::FilePath();
+  }
+  if (cache_path_.empty()) {
+    // Create and use a temporary directory.
+    if (cache_temp_dir_.CreateUniqueTempDir()) {
+      cache_path_ = cache_temp_dir_.path();
+    } else {
+      NOTREACHED() << "Failed to create temporary cache_path directory";
+    }
+  }
+
+#if !defined(OS_WIN)
+  if (settings.multi_threaded_message_loop) {
+    NOTIMPLEMENTED() << "multi_threaded_message_loop is not supported.";
+    return false;
+  }
+#endif
+
+  main_delegate_.reset(new CefMainDelegate(application));
+  main_runner_.reset(content::ContentMainRunner::Create());
+
+  int exit_code;
+
+  // Initialize the content runner.
+#if defined(OS_WIN)
+  sandbox::SandboxInterfaceInfo sandbox_info = {0};
+  content::InitializeSandboxInfo(&sandbox_info);
+
+  exit_code = main_runner_->Initialize(args.instance, &sandbox_info,
+                                       main_delegate_.get());
+#else
+  exit_code = main_runner_->Initialize(args.argc,
+                                       const_cast<const char**>(args.argv),
+                                       main_delegate_.get());
+#endif
+
+  DCHECK_LT(exit_code, 0);
+  if (exit_code >= 0)
+    return false;
+
+  // Run the process. Results in a call to CefMainDelegate::RunProcess() which
+  // will create the browser runner and message loop without blocking.
+  exit_code = main_runner_->Run();
+
+  initialized_ = true;
+
+  // Continue initialization on the UI thread.
+  CEF_POST_TASK(CEF_UIT, base::Bind(&CefContext::OnContextInitialized, this));
+
+  return true;
+}
+
+void CefContext::Shutdown() {
+  // Must always be called on the same thread as Initialize.
+  DCHECK(OnInitThread());
+
+  shutting_down_ = true;
+
+  if (settings_.multi_threaded_message_loop) {
+    // Events that will be used to signal when shutdown is complete. Start in
+    // non-signaled mode so that the event will block.
+    base::WaitableEvent uithread_shutdown_event(false, false);
+
+    // Finish shutdown on the UI thread.
+    CEF_POST_TASK(CEF_UIT,
+        base::Bind(&CefContext::FinishShutdownOnUIThread, this,
+                   &uithread_shutdown_event));
+
+    /// Block until UI thread shutdown is complete.
+    uithread_shutdown_event.Wait();
+
+    FinalizeShutdown();
+  } else {
+    // Finish shutdown on the current thread, which should be the UI thread.
+    FinishShutdownOnUIThread(NULL);
+
+    FinalizeShutdown();
+  }
+}
+
+bool CefContext::OnInitThread() {
+  return (base::PlatformThread::CurrentId() == init_thread_id_);
+}
+
+CefRefPtr<CefBrowserHostImpl> CefContext::GetBrowserByRoutingID(
+    int render_process_id, int render_view_id) {
+  scoped_refptr<CefBrowserInfo> info =
+      CefContentBrowserClient::Get()->GetBrowserInfo(render_process_id,
+                                                     render_view_id);
+  if (info.get()) {
+    CefRefPtr<CefBrowserHostImpl> browser = info->browser();
+    if (!browser.get()) {
+      LOG(WARNING) << "Found browser id " << info->browser_id() <<
+                      " but no browser object matching process id " <<
+                      render_process_id << " and view id " << render_view_id;
+    }
+    return browser;
+  }
+  return NULL;
+}
+
+CefRefPtr<CefApp> CefContext::application() const {
+  return main_delegate_->content_client()->application();
+}
+
+CefBrowserContext* CefContext::browser_context() const {
+  return main_delegate_->browser_client()->browser_main_parts()->
+      browser_context();
+}
+
+CefDevToolsDelegate* CefContext::devtools_delegate() const {
+  return main_delegate_->browser_client()->browser_main_parts()->
+      devtools_delegate();
+}
+
+scoped_ptr<net::ProxyConfigService> CefContext::proxy_config_service() const {
+  return main_delegate_->browser_client()->browser_main_parts()->
+      proxy_config_service();
+}
+
+PrefService* CefContext::pref_service() const {
+  return main_delegate_->browser_client()->browser_main_parts()->pref_service();
+}
+
+CefTraceSubscriber* CefContext::GetTraceSubscriber() {
+  CEF_REQUIRE_UIT();
+  if (shutting_down_)
+    return NULL;
+  if (!trace_subscriber_.get())
+    trace_subscriber_.reset(new CefTraceSubscriber());
+  return trace_subscriber_.get();
+}
+
+void CefContext::OnContextInitialized() {
+  CEF_REQUIRE_UIT();
+
+  // Register internal scheme handlers.
+  scheme::RegisterInternalHandlers();
+
+  // Notify the handler.
+  CefRefPtr<CefApp> app = application();
+  if (app.get()) {
+    CefRefPtr<CefBrowserProcessHandler> handler =
+        app->GetBrowserProcessHandler();
+    if (handler.get())
+      handler->OnContextInitialized();
+  }
+}
+
+void CefContext::FinishShutdownOnUIThread(
+    base::WaitableEvent* uithread_shutdown_event) {
+  CEF_REQUIRE_UIT();
+
+  CefContentBrowserClient::Get()->DestroyAllBrowsers();
+
+  if (trace_subscriber_.get())
+    trace_subscriber_.reset(NULL);
+
+  if (uithread_shutdown_event)
+    uithread_shutdown_event->Signal();
+}
+
+void CefContext::FinalizeShutdown() {
+  if (content::RenderProcessHost::run_renderer_in_process()) {
+    // Blocks until RenderProcess cleanup is complete.
+    CefContentRendererClient::Get()->RunSingleProcessCleanup();
+  }
+
+  // Shut down the browser runner or UI thread.
+  main_delegate_->ShutdownBrowser();
+
+  // Shut down the content runner.
+  main_runner_->Shutdown();
+
+  main_runner_.reset(NULL);
+  main_delegate_.reset(NULL);
+}