chrome/browser/extensions/extension_error_reporter.cc

   1 // Copyright (c) 2012 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 #include "chrome/browser/extensions/extension_error_reporter.h"
   6
   7 #include "build/build_config.h"
   8
   9 #include "base/bind.h"
  10 #include "base/bind_helpers.h"
  11 #include "base/logging.h"
  12 #include "base/message_loop/message_loop.h"
  13 #include "base/strings/utf_string_conversions.h"
  14 #include "chrome/browser/ui/simple_message_box.h"
  15
  16 ExtensionErrorReporter* ExtensionErrorReporter::instance_ = NULL;
  17
  18 // static
  19 void ExtensionErrorReporter::Init(bool enable_noisy_errors) {
  20   if (!instance_) {
  21     instance_ = new ExtensionErrorReporter(enable_noisy_errors);
  22   }
  23 }
  24
  25 // static
  26 ExtensionErrorReporter* ExtensionErrorReporter::GetInstance() {
  27   CHECK(instance_) << "Init() was never called";
  28   return instance_;
  29 }
  30
  31 ExtensionErrorReporter::ExtensionErrorReporter(bool enable_noisy_errors)
  32     : ui_loop_(base::MessageLoop::current()),
  33       enable_noisy_errors_(enable_noisy_errors) {
  34 }
  35
  36 ExtensionErrorReporter::~ExtensionErrorReporter() {}
  37
  38 void ExtensionErrorReporter::ReportError(const base::string16& message,
  39                                          bool be_noisy) {
  40   // NOTE: There won't be a ui_loop_ in the unit test environment.
  41   if (ui_loop_ && base::MessageLoop::current() != ui_loop_) {
  42     // base::Unretained is okay since the ExtensionErrorReporter is a singleton
  43     // that lives until the end of the process.
  44     ui_loop_->PostTask(FROM_HERE,
  45         base::Bind(&ExtensionErrorReporter::ReportError,
  46                    base::Unretained(this),
  47                    message,
  48                    be_noisy));
  49     return;
  50   }
  51
  52   errors_.push_back(message);
  53
  54   // TODO(aa): Print the error message out somewhere better. I think we are
  55   // going to need some sort of 'extension inspector'.
  56   LOG(WARNING) << "Extension error: " << message;
  57
  58   if (enable_noisy_errors_ && be_noisy) {
  59     chrome::ShowMessageBox(NULL, base::ASCIIToUTF16("Extension error"), message,
  60                            chrome::MESSAGE_BOX_TYPE_WARNING);
  61   }
  62 }
  63
  64 const std::vector<base::string16>* ExtensionErrorReporter::GetErrors() {
  65   return &errors_;
  66 }
  67
  68 void ExtensionErrorReporter::ClearErrors() {
  69   errors_.clear();
  70 }