Add a webstore API for installing bundles of extensions.

chrome/browser/extensions/bundle_installer.h

Index: chrome/browser/extensions/bundle_installer.h
diff --git a/chrome/browser/extensions/bundle_installer.h b/chrome/browser/extensions/bundle_installer.h
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+// 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.
+
+#ifndef CHROME_BROWSER_EXTENSIONS_BUNDLE_INSTALLER_H_
+#define CHROME_BROWSER_EXTENSIONS_BUNDLE_INSTALLER_H_
+#pragma once
+
+#include <string>
+#include <vector>
+
+#include "base/memory/linked_ptr.h"
+#include "chrome/browser/extensions/extension_install_ui.h"
+#include "chrome/browser/extensions/webstore_installer.h"
+#include "chrome/browser/extensions/webstore_install_helper.h"
+#include "chrome/browser/ui/browser_list.h"
+#include "chrome/common/extensions/extension.h"
+
+namespace base {
+class DictionaryValue;
+}  // namespace base
+
+namespace content {
+class NavigationController;
+}  // namespace content
+
+class Browser;
+class Profile;
+
+namespace extensions {
+
+// Manages the installation life cycle for extension bundles.
+//
+// We install bundles in two steps:
+//  1) PromptForApproval: parse manifests and prompt the user
+//  2) CompleteInstall: install the CRXs and show confirmation bubble
+//
+class BundleInstaller : public WebstoreInstallHelper::Delegate,
+                        public ExtensionInstallUI::Delegate,
+                        public WebstoreInstaller::Delegate,
+                        public BrowserList::Observer,
+                        public base::RefCountedThreadSafe<BundleInstaller> {
+ public:
+  // Auto approve or cancel the permission prompt.
+  static void SetAutoApproveForTesting(bool approve);
+
+  class Delegate {
+   public:
+    virtual void OnBundleInstallApproved() {}
+    virtual void OnBundleInstallCanceled(bool user_initiated) {}
+    virtual void OnBundleInstallCompleted() {}
+  };
+
+  // Represents an individual member of the bundle.
+  struct Item {
+    // Items are in the PENDING state until they've been installed, or the
+    // install has failed or been canceled.
+    enum State {
+      STATE_PENDING,
+      STATE_INSTALLED,
+      STATE_FAILED
+    };
+
+    Item();
+
+    std::string id;
+    std::string manifest;
+    std::string localized_name;
+    State state;
+  };
+
+  typedef std::vector<Item> ItemList;
+
+  BundleInstaller(Profile* profile, const ItemList& items);
+  virtual ~BundleInstaller();
+
+  // Returns true if the user has approved the bundle's permissions.
+  bool approved() const { return approved_; }
+
+  // Gets the items in the given state.
+  ItemList GetItemsWithState(Item::State state) const;
+
+  // Parses the extension manifests and then prompts the user to approve their
+  // permissions. One of OnBundleInstallApproved or OnBundleInstallCanceled
+  // will be called when complete if |delegate| is not NULL.
+  // Note: the |delegate| must stay alive until receiving the callback.
+  void PromptForApproval(Delegate* delegate);
+
+  // If the bundle has been approved, this downloads and installs the member
+  // extensions. OnBundleInstallComplete will be called when the process is
+  // complete and |delegate| is not NULL. The download process uses the
+  // specified |controller|. When complete, we show a confirmation bubble in
+  // the specified |browser|.
+  // Note: the |delegate| must stay alive until receiving the callback.
+  void CompleteInstall(content::NavigationController* controller,
+                       Browser* browser,
+                       Delegate* delegate);
+
+ private:
+  friend class base::RefCountedThreadSafe<BundleInstaller>;
+
+  typedef std::map<std::string, Item> ItemMap;
+  typedef std::map<std::string, linked_ptr<base::DictionaryValue> > ManifestMap;
+
+  // Displays the install bubble for |bundle| on |browser|.
+  // Note: this is a platform specific implementation.
+  static void ShowInstalledBubble(const BundleInstaller* bundle,
+                                  Browser* browser);
+
+  // Parses the manifests using WebstoreInstallHelper.
+  void ParseManifests();
+
+  // Notifies the delegate that the installation has been approved.
+  void ReportApproved();
+
+  // Notifies the delegate that the installation was canceled.
+  void ReportCanceled(bool user_initiated);
+
+  // Notifies the delegate that the installation is complete.
+  void ReportComplete();
+
+  // Prompts the user to install the bundle once we have dummy extensions for
+  // all the pending items.
+  void ShowPromptIfDoneParsing();
+
+  // Prompts the user to install the bundle.
+  void ShowPrompt();
+
+  // Displays the installed bubble once all items have installed or failed.
+  void ShowInstalledBubbleIfDone();
+
+  // WebstoreInstallHelper::Delegate implementation:
+  virtual void OnWebstoreParseSuccess(
+      const std::string& id,
+      const SkBitmap& icon,
+      base::DictionaryValue* parsed_manifest) OVERRIDE;
+  virtual void OnWebstoreParseFailure(
+      const std::string& id,
+      InstallHelperResultCode result_code,
+      const std::string& error_message) OVERRIDE;
+
+  // ExtensionInstallUI::Delegate implementation:
+  virtual void InstallUIProceed() OVERRIDE;
+  virtual void InstallUIAbort(bool user_initiated) OVERRIDE;
+
+  // WebstoreInstaller::Delegate implementation:
+  virtual void OnExtensionInstallSuccess(const std::string& id) OVERRIDE;
+  virtual void OnExtensionInstallFailure(const std::string& id,
+                                         const std::string& error) OVERRIDE;
+
+  // BrowserList::observer implementation:
+  virtual void OnBrowserAdded(const Browser* browser) OVERRIDE;
+  virtual void OnBrowserRemoved(const Browser* browser) OVERRIDE;
+  virtual void OnBrowserSetLastActive(const Browser* browser) OVERRIDE;
+
+  // Holds the Extensions used to generate the permission warnings.
+  ExtensionList dummy_extensions_;
+
+  // Holds the parsed manifests, indexed by the extension ids.
+  ManifestMap parsed_manifests_;
+
+  // True if the user has approved the bundle.
+  bool approved_;
+
+  // Holds the bundle's Items, indexed by their ids.
+  ItemMap items_;
+
+  // The browser to show the confirmation bubble for.
+  Browser* browser_;
+
+  // The profile that the bundle should be installed in.
+  Profile* profile_;
+
+  Delegate* delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(BundleInstaller);
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_BUNDLE_INSTALLER_H_