Pull shell window stuff out of ExtensionHost and put in ShellWindow

chrome/browser/ui/extensions/shell_window.cc

 // Copyright (c) 2012 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/ui/extensions/shell_window.h"
 
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/extensions/extension_process_manager.h"
 #include "chrome/browser/extensions/extension_tabs_module_constants.h"
 #include "chrome/browser/extensions/extension_window_controller.h"
+#include "chrome/browser/extensions/shell_window_registry.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sessions/session_id.h"
 #include "chrome/common/chrome_notification_types.h"
+#include "chrome/common/chrome_view_type.h"
 #include "chrome/common/extensions/extension.h"
+#include "chrome/common/extensions/extension_messages.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
+#include "content/public/browser/render_view_host.h"
+#include "content/public/browser/site_instance.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/common/renderer_preferences.h"
+
+using content::SiteInstance;
+using content::WebContents;
 
 namespace internal {
 
 class ShellWindowController : public ExtensionWindowController {
  public:
   ShellWindowController(ShellWindow* shell_window, Profile* profile);
 
   // Overriden from ExtensionWindowController
   virtual int GetWindowId() const OVERRIDE;
   virtual std::string GetWindowTypeText() const OVERRIDE;
-  virtual base::DictionaryValue* CreateWindowValue() const OVERRIDE;
   virtual base::DictionaryValue* CreateWindowValueWithTabs() const OVERRIDE;
   virtual bool CanClose(Reason* reason) const OVERRIDE;
   virtual void SetFullscreenMode(bool is_fullscreen,
                                  const GURL& extension_url) const OVERRIDE;
 
  private:
   ShellWindow* shell_window_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellWindowController);
 };
 
 ShellWindowController::ShellWindowController(
     ShellWindow* shell_window,
     Profile* profile)
     : ExtensionWindowController(shell_window, profile),
       shell_window_(shell_window) {
 }
 
 int ShellWindowController::GetWindowId() const {
   return static_cast<int>(shell_window_->session_id().id());
 }
 
-namespace keys = extension_tabs_module_constants;
-
 std::string ShellWindowController::GetWindowTypeText() const {
-  return keys::kWindowTypeValueShell;
-}
-
-base::DictionaryValue* ShellWindowController::CreateWindowValue() const {
-  DictionaryValue* result = ExtensionWindowController::CreateWindowValue();
-  return result;
+  return extension_tabs_module_constants::kWindowTypeValueShell;
 }
 
 base::DictionaryValue* ShellWindowController::CreateWindowValueWithTabs()
     const {
   return CreateWindowValue();
 }
 
 bool ShellWindowController::CanClose(Reason* reason) const {
   return true;
 }
 
 void ShellWindowController::SetFullscreenMode(bool is_fullscreen,
                                               const GURL& extension_url) const {
   // TODO(mihaip): implement
 }
 
 }  // namespace internal
 
 ShellWindow* ShellWindow::Create(Profile* profile,
                                  const Extension* extension,
                                  const GURL& url) {
-  ExtensionProcessManager* manager = profile->GetExtensionProcessManager();
-  DCHECK(manager);
-
   // This object will delete itself when the window is closed.
-  return ShellWindow::CreateShellWindow(
-      manager->CreateShellHost(extension, url));
+  return ShellWindow::CreateImpl(profile, extension, url);
 }
 
-void ShellWindow::Observe(int type,
-                          const content::NotificationSource& source,
-                          const content::NotificationDetails& details) {
-  switch (type) {
-    case chrome::NOTIFICATION_EXTENSION_HOST_VIEW_SHOULD_CLOSE:
-      if (content::Details<ExtensionHost>(host_.get()) == details)
-        Close();
-      break;
-    case chrome::NOTIFICATION_EXTENSION_UNLOADED: {
-      const Extension* unloaded_extension =
-          content::Details<UnloadedExtensionInfo>(details)->extension;
-      // We compare extension IDs and not Extension pointers since ExtensionHost
-      // nulls out its Extension pointer when it gets this notification.
-      if (host_->extension_id() == unloaded_extension->id())
-        Close();
-      break;
-    }
-    case content::NOTIFICATION_APP_TERMINATING:
-      Close();
-      break;
-    default:
-      NOTREACHED() << "Received unexpected notification";
-  }
-}
+ShellWindow::ShellWindow(Profile* profile,
+                         const Extension* extension,
+                         const GURL& url)
+    : profile_(profile),
+      extension_(extension),
+      ALLOW_THIS_IN_INITIALIZER_LIST(
+          extension_function_dispatcher_(profile, this)) {
+  web_contents_.reset(WebContents::Create(
+      profile, SiteInstance::CreateForURL(profile, url), MSG_ROUTING_NONE, NULL,
+      NULL));
+  content::WebContentsObserver::Observe(web_contents_.get());
+  web_contents_->SetDelegate(this);
+  web_contents_->SetViewType(chrome::VIEW_TYPE_APP_SHELL);
+  web_contents_->GetMutableRendererPrefs()->browser_handles_all_requests =
+      true;
+  web_contents_->GetRenderViewHost()->SyncRendererPrefs();
 
-ShellWindow::ShellWindow(ExtensionHost* host)
-    : host_(host) {
-  // Close the window in response to window.close() and the like.
-  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_HOST_VIEW_SHOULD_CLOSE,
-                 content::Source<Profile>(host->profile()));
-  // Also close if the window if the extension has been unloaded (parallels
-  // NOTIFICATION_EXTENSION_UNLOADED closing the app's tabs in TabStripModel).
+  web_contents_->GetController().LoadURL(
+      url, content::Referrer(), content::PAGE_TRANSITION_LINK,
+      std::string());
   registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
-                 content::Source<Profile>(host->profile()));
+                 content::Source<Profile>(profile_));
   // Close when the browser is exiting.
   // TODO(mihaip): we probably don't want this in the long run (when platform
   // apps are no longer tied to the browser process).
   registrar_.Add(this, content::NOTIFICATION_APP_TERMINATING,
                  content::NotificationService::AllSources());
 
   // Prevent the browser process from shutting down while this window is open.
   BrowserList::StartKeepAlive();
 
   // Make this window available to the extension API.
   extension_window_controller_.reset(
-      new internal::ShellWindowController(this, host->profile()));
+      new internal::ShellWindowController(this, profile_));
+
+  ShellWindowRegistry::Get(profile_)->AddShellWindow(this);
 }
 
 ShellWindow::~ShellWindow() {
   // Unregister now to prevent getting NOTIFICATION_APP_TERMINATING if we're the
   // last window open.
   registrar_.RemoveAll();
 
+  ShellWindowRegistry::Get(profile_)->RemoveShellWindow(this);
+
   // Remove shutdown prevention.
   BrowserList::EndKeepAlive();
 }
+
+bool ShellWindow::OnMessageReceived(const IPC::Message& message) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(ShellWindow, message)
+    IPC_MESSAGE_HANDLER(ExtensionHostMsg_Request, OnRequest)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  return handled;
+}
+
+void ShellWindow::CloseContents(WebContents* contents) {
+  Close();
+}
+
+// TODO(benwells): Rearrange so users of this can call
+// WebContents::set_should_suppress_dialogs(bool) instead of overriding
+// this delegate function.
+bool ShellWindow::ShouldSuppressDialogs() {
+  return true;
+}
+
+void ShellWindow::Observe(int type,
+                          const content::NotificationSource& source,
+                          const content::NotificationDetails& details) {
+  switch (type) {
+    case chrome::NOTIFICATION_EXTENSION_UNLOADED: {
+      const Extension* unloaded_extension =
+          content::Details<UnloadedExtensionInfo>(details)->extension;
+      if (extension_ == unloaded_extension)
+        Close();
+      break;
+    }
+    case content::NOTIFICATION_APP_TERMINATING:
+      Close();
+      break;
+    default:
+      NOTREACHED() << "Received unexpected notification";
+  }
+}
+
+void ShellWindow::OnRequest(const ExtensionHostMsg_Request_Params& params) {
+  extension_function_dispatcher_.Dispatch(params,
+                                          web_contents_->GetRenderViewHost());
+}