extensions: Refactor ExtensionInstallUI class.

chrome/browser/extensions/extension_generic_dialog.h

+// 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_EXTENSIONS_EXTENSION_GENERIC_DIALOG_H_
+#define CHROME_BROWSER_EXTENSIONS_EXTENSION_GENERIC_DIALOG_H_
+#pragma once
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "chrome/browser/extensions/image_loading_tracker.h"
+#include "chrome/browser/extensions/extension_install_ui.h"
+
+class MessageLoop;
+
+class ExtensionGenericDialog : public ImageLoadingTracker::Observer {
+ public:
+  enum DialogType {
+    DIALOG_UNSET = -1,
+    DIALOG_INSTALL = 0,

[Aaron Boodman, 2011/03/23 00:30:19]

This one is unneeded in the new world.

+    DIALOG_UNINSTALL,
+    DIALOG_RE_ENABLE,
+    DIALOG_NUM_TYPES
+  };

[Aaron Boodman, 2011/03/23 00:30:19]

You will need to move ExtensionInstallUI::Delegate here (it will become
ExtensionGenericDialog::Delegate).

+
+  ExtensionGenericDialog();
+  virtual ~ExtensionGenericDialog();
+
+  // This is called by the extensions management page to verify whether the
+  // uninstallation should proceed. This is declared virtual for testing.
+  //
+  // We *MUST* eventually call either Proceed() or Abort()
+  // on |delegate|.
+  void ConfirmUninstall(ExtensionInstallUI::Delegate* delegate,

[Aaron Boodman, 2011/03/23 00:30:19]

It might be good to replace these with a single Confirm(Delegate* delegate,
DialogType type) method.

+                        const Extension* extension);
+
+  // This is called by the app handler launcher to verify whether the app
+  // should be re-enabled. This is declared virtual for testing.
+  //
+  // We *MUST* eventually call either Proceed() or Abort() on |delegate|.
+  void ConfirmReenable(ExtensionInstallUI::Delegate* delegate,
+                       const Extension* extension);
+
+ private:
+  // Starts the process of showing a confirmation UI, which is split into two.
+  // 1) Set off a 'load icon' task.
+  // 2) Handle the load icon response and show the UI (OnImageLoaded).
+  void ShowConfirmation(DialogType dialog_type);
+
+  // ImageLoadingTracker::Observer:
+  virtual void OnImageLoaded(SkBitmap* image,
+                             const ExtensionResource& resource,
+                             int index) OVERRIDE;
+
+  MessageLoop* ui_loop_;
+
+  DISALLOW_COPY_AND_ASSIGN(ExtensionGenericDialog);
+};
+
+#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_GENERIC_DIALOG_H_