Options2: Pull the trigger.

chrome/browser/ui/webui/options2/extension_settings_handler.h

Index: chrome/browser/ui/webui/options2/extension_settings_handler.h
diff --git a/chrome/browser/ui/webui/options2/extension_settings_handler.h b/chrome/browser/ui/webui/options2/extension_settings_handler.h
new file mode 100644
index 0000000000000000000000000000000000000000..9ac9713d6f71f1c7673c03d049c0ce38f9e3c80f
--- /dev/null
+++ b/chrome/browser/ui/webui/options2/extension_settings_handler.h
@@ -0,0 +1,200 @@
+// 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.
+
+#ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS2_EXTENSION_SETTINGS_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_EXTENSION_SETTINGS_HANDLER_H_
+#pragma once
+
+#include <set>
+#include <string>
+#include <vector>
+
+#include "chrome/browser/extensions/extension_install_ui.h"
+#include "chrome/browser/extensions/extension_uninstall_dialog.h"
+#include "chrome/browser/extensions/extension_warning_set.h"
+#include "chrome/browser/ui/select_file_dialog.h"
+#include "chrome/browser/ui/webui/options2/options_ui2.h"
+#include "chrome/browser/ui/webui/chrome_web_ui.h"
+#include "chrome/common/extensions/extension_resource.h"
+#include "content/public/browser/notification_observer.h"
+#include "content/public/browser/notification_registrar.h"
+#include "googleurl/src/gurl.h"
+
+class Extension;
+class ExtensionService;
+class FilePath;
+class PrefService;
+class UserScript;
+
+namespace base {
+class DictionaryValue;
+class ListValue;
+}
+
+// Information about a page running in an extension, for example a popup bubble,
+// a background page, or a tab contents.
+struct ExtensionPage {
+  ExtensionPage(const GURL& url, int render_process_id, int render_view_id,
+                bool incognito)
+    : url(url),
+      render_process_id(render_process_id),
+      render_view_id(render_view_id),
+      incognito(incognito) {}
+  GURL url;
+  int render_process_id;
+  int render_view_id;
+  bool incognito;
+};
+
+// Extension Settings UI handler.
+class ExtensionSettingsHandler : public OptionsPage2UIHandler,
+                                 public SelectFileDialog::Listener,
+                                 public ExtensionUninstallDialog::Delegate {
+ public:
+  ExtensionSettingsHandler();
+  virtual ~ExtensionSettingsHandler();
+
+  static void RegisterUserPrefs(PrefService* prefs);
+
+  // Extension Detail JSON Struct for page. (static for ease of testing).
+  // Note: |service| and |warnings| can be NULL in unit tests.
+  static base::DictionaryValue* CreateExtensionDetailValue(
+      ExtensionService* service,
+      const Extension* extension,
+      const std::vector<ExtensionPage>& pages,
+      const ExtensionWarningSet* warnings,
+      bool enabled,
+      bool terminated);
+
+  // ContentScript JSON Struct for page. (static for ease of testing).
+  static base::DictionaryValue* CreateContentScriptDetailValue(
+      const UserScript& script,
+      const FilePath& extension_path);
+
+  // Callback for "requestExtensionsData" message.
+  void HandleRequestExtensionsData(const base::ListValue* args);
+
+  // Callback for "toggleDeveloperMode" message.
+  void HandleToggleDeveloperMode(const base::ListValue* args);
+
+  // Callback for "inspect" message.
+  void HandleInspectMessage(const base::ListValue* args);
+
+  // Callback for "reload" message.
+  void HandleReloadMessage(const base::ListValue* args);
+
+  // Callback for "enable" message.
+  void HandleEnableMessage(const base::ListValue* args);
+
+  // Callback for "enableIncognito" message.
+  void HandleEnableIncognitoMessage(const base::ListValue* args);
+
+  // Callback for "allowFileAcces" message.
+  void HandleAllowFileAccessMessage(const base::ListValue* args);
+
+  // Callback for "uninstall" message.
+  void HandleUninstallMessage(const base::ListValue* args);
+
+  // Callback for "options" message.
+  void HandleOptionsMessage(const base::ListValue* args);
+
+  // Callback for "showButton" message.
+  void HandleShowButtonMessage(const base::ListValue* args);
+
+  // Callback for "load" message.
+  void HandleLoadMessage(const base::ListValue* args);
+
+  // Callback for "pack" message.
+  void HandlePackMessage(const base::ListValue* args);
+
+  // Callback for "autoupdate" message.
+  void HandleAutoUpdateMessage(const base::ListValue* args);
+
+  // Utility for calling javascript window.alert in the page.
+  void ShowAlert(const std::string& message);
+
+  // Callback for "selectFilePath" message.
+  void HandleSelectFilePathMessage(const base::ListValue* args);
+
+  // Utility for callbacks that get an extension ID as the sole argument.
+  const Extension* GetExtension(const base::ListValue* args);
+
+  // Forces a UI update if appropriate after a notification is received.
+  void MaybeUpdateAfterNotification();
+
+  // Register for notifications that we need to reload the page.
+  void MaybeRegisterForNotifications();
+
+  // SelectFileDialog::Listener
+  virtual void FileSelected(const FilePath& path,
+                            int index, void* params) OVERRIDE;
+  virtual void MultiFilesSelected(
+      const std::vector<FilePath>& files, void* params) OVERRIDE;
+  virtual void FileSelectionCanceled(void* params) OVERRIDE {}
+
+  // WebUIMessageHandler implementation.
+  virtual void RegisterMessages() OVERRIDE;
+  virtual WebUIMessageHandler* Attach(WebUI* web_ui) OVERRIDE;
+
+  // OptionsUIHandler implementation.
+  virtual void GetLocalizedValues(
+      base::DictionaryValue* localized_strings) OVERRIDE;
+  virtual void Initialize() OVERRIDE;
+
+  // content::NotificationObserver implementation.
+  virtual void Observe(int type,
+                       const content::NotificationSource& source,
+                       const content::NotificationDetails& details) OVERRIDE;
+
+  // ExtensionUninstallDialog::Delegate implementation, used for receiving
+  // notification about uninstall confirmation dialog selections.
+  virtual void ExtensionUninstallAccepted() OVERRIDE;
+  virtual void ExtensionUninstallCanceled() OVERRIDE;
+
+ private:
+  // Helper that lists the current active html pages for an extension.
+  std::vector<ExtensionPage> GetActivePagesForExtension(
+      const Extension* extension);
+  void GetActivePagesForExtensionProcess(
+      const std::set<RenderViewHost*>& views,
+      std::vector<ExtensionPage> *result);
+
+  // Returns the ExtensionUninstallDialog object for this class, creating it if
+  // needed.
+  ExtensionUninstallDialog* GetExtensionUninstallDialog();
+
+  // Our model.  Outlives us since it's owned by our containing profile.
+  ExtensionService* extension_service_;
+
+  // Used to pick the directory when loading an extension.
+  scoped_refptr<SelectFileDialog> load_extension_dialog_;
+
+  // Used to show confirmation UI for uninstalling extensions in incognito mode.
+  scoped_ptr<ExtensionUninstallDialog> extension_uninstall_dialog_;
+
+  // The id of the extension we are prompting the user about.
+  std::string extension_id_prompting_;
+
+  // If true, we will ignore notifications in ::Observe(). This is needed
+  // to prevent reloading the page when we were the cause of the
+  // notification.
+  bool ignore_notifications_;
+
+  // The page may be refreshed in response to a RENDER_VIEW_HOST_DELETED,
+  // but the iteration over RenderViewHosts will include the host because the
+  // notification is sent when it is in the process of being deleted (and before
+  // it is removed from the process). Keep a pointer to it so we can exclude
+  // it from the active views.
+  RenderViewHost* deleting_rvh_;
+
+  // We want to register for notifications only after we've responded at least
+  // once to the page, otherwise we'd be calling javacsript functions on objects
+  // that don't exist yet when notifications come in. This variable makes sure
+  // we do so only once.
+  bool registered_for_notifications_;
+
+  DISALLOW_COPY_AND_ASSIGN(ExtensionSettingsHandler);
+};
+
+#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_EXTENSION_SETTINGS_HANDLER_H_