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// 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_UNINSTALL_DIALOG_H_
#define CHROME_BROWSER_EXTENSIONS_EXTENSION_UNINSTALL_DIALOG_H_
#pragma once
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "chrome/browser/extensions/image_loading_tracker.h"
#include "third_party/skia/include/core/SkBitmap.h"
class MessageLoop;
class Profile;
class ExtensionUninstallDialog : public ImageLoadingTracker::Observer {
public:
class Delegate {
public:
// We call this method to signal that the uninstallation should continue.
virtual void ExtensionUninstallAccepted() = 0;
// We call this method to signal that the uninstallation should stop.
virtual void ExtensionUninstallCanceled() = 0;
protected:
virtual ~Delegate() {}
};
// Creates a platform specific implementation of ExtensionUninstallDialog.
static ExtensionUninstallDialog* Create(
Profile* profile, Delegate* delegate);
virtual ~ExtensionUninstallDialog();
// This is called to verify whether the uninstallation should proceed.
// 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 ConfirmUninstall(const Extension* extension);
protected:
// Constructor used by the derived classes.
explicit ExtensionUninstallDialog(Profile* profile, Delegate* delegate);
Profile* profile_;
// The delegate we will call Accepted/Canceled on after confirmation dialog.
Delegate* delegate_;
// The extension we are showing the dialog for.
const Extension* extension_;
// The extensions icon.
SkBitmap icon_;
private:
// Sets the icon that will be used in the dialog. If |icon| is NULL, or
// contains an empty bitmap, then we use a default icon instead.
void SetIcon(SkBitmap* icon);
// ImageLoadingTracker::Observer:
virtual void OnImageLoaded(SkBitmap* image,
const ExtensionResource& resource,
int index) OVERRIDE;
// Displays the prompt. This should only be called after loading the icon.
// The implementations of this method are platform-specific.
virtual void Show() = 0;
MessageLoop* ui_loop_;
// Keeps track of extension images being loaded on the File thread for the
// purpose of showing the dialog.
ImageLoadingTracker tracker_;
DISALLOW_COPY_AND_ASSIGN(ExtensionUninstallDialog);
};
#endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_UNINSTALL_DIALOG_H_
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