1// Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_ERROR_REPORTER_H_
6#define CHROME_BROWSER_EXTENSIONS_EXTENSION_ERROR_REPORTER_H_
7#pragma once
8
9#include <string>
10#include <vector>
11
12class MessageLoop;
13
14// Exposes an easy way for the various components of the extension system to
15// report errors. This is a singleton that lives on the UI thread, with the
16// exception of ReportError() which may be called from any thread.
17// TODO(aa): Hook this up to about:extensions, when we have about:extensions.
18// TODO(aa): Consider exposing directly, or via a helper, to the renderer
19// process and plumbing the errors out to the browser.
20// TODO(aa): Add ReportError(extension_id, message, be_noisy), so that we can
21// report errors that are specific to a particular extension.
22class ExtensionErrorReporter {
23 public:
24  // Initializes the error reporter. Must be called before any other methods
25  // and on the UI thread.
26  static void Init(bool enable_noisy_errors);
27
28  // Get the singleton instance.
29  static ExtensionErrorReporter* GetInstance();
30
31  // Report an error. Errors always go to VLOG(1). Optionally, they can also
32  // cause a noisy alert box. This method can be called from any thread.
33  void ReportError(const std::string& message, bool be_noisy);
34
35  // Get the errors that have been reported so far.
36  const std::vector<std::string>* GetErrors();
37
38  // Clear the list of errors reported so far.
39  void ClearErrors();
40
41 private:
42  static ExtensionErrorReporter* instance_;
43
44  explicit ExtensionErrorReporter(bool enable_noisy_errors);
45  ~ExtensionErrorReporter();
46
47  MessageLoop* ui_loop_;
48  std::vector<std::string> errors_;
49  bool enable_noisy_errors_;
50};
51
52#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_ERROR_REPORTER_H_
53