Upstream ApplicationContext on iOS

Review URL: https://codereview.chromium.org/812833003

Cr-Commit-Position: refs/heads/master@{#309185}

8 files changed, 248 insertions, 0 deletions

diff --git a/ios/chrome/browser/application_context.cc b/ios/chrome/browser/application_context.cc
new file mode 100644
index 0000000..8cdff1c
--- /dev/null
+++ b/ios/chrome/browser/application_context.cc
@@ -0,0 +1,27 @@
+// Copyright 2014 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.
+
+#include "ios/chrome/browser/application_context.h"
+
+#include "base/logging.h"
+
+namespace {
+// Global ApplicationContext instance.
+ApplicationContext* g_application_context = nullptr;
+}
+
+ApplicationContext* GetApplicationContext() {
+  return g_application_context;
+}
+
+ApplicationContext::ApplicationContext() {
+}
+
+ApplicationContext::~ApplicationContext() {
+}
+
+// static
+void ApplicationContext::SetApplicationContext(ApplicationContext* context) {
+  g_application_context = context;
+}
diff --git a/ios/chrome/browser/application_context.h b/ios/chrome/browser/application_context.h
new file mode 100644
index 0000000..c10e8f8
--- /dev/null
+++ b/ios/chrome/browser/application_context.h
@@ -0,0 +1,44 @@
+// Copyright 2014 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 IOS_CHROME_BROWSER_APPLICATION_CONTEXT_H_
+#define IOS_CHROME_BROWSER_APPLICATION_CONTEXT_H_
+
+#include <string>
+
+#include "base/macros.h"
+
+namespace net {
+class URLRequestContextGetter;
+}
+
+class ApplicationContext;
+class PrefService;
+
+// Gets the global application context. Cannot return null.
+ApplicationContext* GetApplicationContext();
+
+class ApplicationContext {
+ public:
+  ApplicationContext();
+  virtual ~ApplicationContext();
+
+  // Gets the local state associated with this application.
+  virtual PrefService* GetLocalState() = 0;
+
+  // Gets the URL request context associated with this application.
+  virtual net::URLRequestContextGetter* GetSystemURLRequestContext() = 0;
+
+  // Gets the locale used by the application.
+  virtual const std::string& GetApplicationLocale() = 0;
+
+ protected:
+  // Sets the global ApplicationContext instance.
+  static void SetApplicationContext(ApplicationContext* context);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ApplicationContext);
+};
+
+#endif  // IOS_CHROME_BROWSER_APPLICATION_CONTEXT_H_
diff --git a/ios/chrome/browser/application_context_impl.cc b/ios/chrome/browser/application_context_impl.cc
new file mode 100644
index 0000000..b749899
--- /dev/null
+++ b/ios/chrome/browser/application_context_impl.cc
@@ -0,0 +1,43 @@
+// Copyright 2014 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.
+
+#include "ios/chrome/browser/application_context_impl.h"
+
+#include "base/logging.h"
+#include "components/translate/core/browser/translate_download_manager.h"
+#include "ios/public/provider/chrome/browser/chrome_browser_provider.h"
+
+ApplicationContextImpl::ApplicationContextImpl() {
+  DCHECK(!GetApplicationContext());
+  SetApplicationContext(this);
+}
+
+ApplicationContextImpl::~ApplicationContextImpl() {
+  DCHECK_EQ(this, GetApplicationContext());
+  SetApplicationContext(nullptr);
+}
+
+PrefService* ApplicationContextImpl::GetLocalState() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  return ios::GetChromeBrowserProvider()->GetLocalState();
+}
+
+net::URLRequestContextGetter*
+ApplicationContextImpl::GetSystemURLRequestContext() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  return ios::GetChromeBrowserProvider()->GetSystemURLRequestContext();
+}
+
+const std::string& ApplicationContextImpl::GetApplicationLocale() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  DCHECK(!application_locale_.empty());
+  return application_locale_;
+}
+
+void ApplicationContextImpl::SetApplicationLocale(const std::string& locale) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  application_locale_ = locale;
+  translate::TranslateDownloadManager::GetInstance()->set_application_locale(
+      application_locale_);
+}
diff --git a/ios/chrome/browser/application_context_impl.h b/ios/chrome/browser/application_context_impl.h
new file mode 100644
index 0000000..c44a7ef
--- /dev/null
+++ b/ios/chrome/browser/application_context_impl.h
@@ -0,0 +1,34 @@
+// Copyright 2014 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 IOS_CHROME_BROWSER_APPLICATION_CONTEXT_IMPL_H_
+#define IOS_CHROME_BROWSER_APPLICATION_CONTEXT_IMPL_H_
+
+#include <string>
+
+#include "base/macros.h"
+#include "base/threading/thread_checker.h"
+#include "ios/chrome/browser/application_context.h"
+
+class ApplicationContextImpl : public ApplicationContext {
+ public:
+  ApplicationContextImpl();
+  ~ApplicationContextImpl() override;
+
+  // Sets the locale used by the application.
+  void SetApplicationLocale(const std::string& locale);
+
+ private:
+  // ApplicationContext implementation.
+  PrefService* GetLocalState() override;
+  net::URLRequestContextGetter* GetSystemURLRequestContext() override;
+  const std::string& GetApplicationLocale() override;
+
+  base::ThreadChecker thread_checker_;
+  std::string application_locale_;
+
+  DISALLOW_COPY_AND_ASSIGN(ApplicationContextImpl);
+};
+
+#endif  // IOS_CHROME_BROWSER_APPLICATION_CONTEXT_IMPL_H_
diff --git a/ios/chrome/ios_chrome.gyp b/ios/chrome/ios_chrome.gyp
index fe3e2db..04c3c2a 100644
--- a/ios/chrome/ios_chrome.gyp
+++ b/ios/chrome/ios_chrome.gyp
@@ -29,6 +29,10 @@
         '../web/ios_web.gyp:ios_web',
       ],
       'sources': [
+        'browser/application_context.cc',
+        'browser/application_context.h',
+        'browser/application_context_impl.cc',
+        'browser/application_context_impl.h',
         'browser/browser_state/browser_state_otr_helper.cc',
         'browser/browser_state/browser_state_otr_helper.h',
         'browser/infobars/confirm_infobar_controller.h',
diff --git a/ios/chrome/ios_chrome_tests.gyp b/ios/chrome/ios_chrome_tests.gyp
index 871fc20..064638c 100644
--- a/ios/chrome/ios_chrome_tests.gyp
+++ b/ios/chrome/ios_chrome_tests.gyp
@@ -23,5 +23,18 @@
         'browser/net/image_fetcher_unittest.mm',
       ],
     },
+    {
+      'target_name': 'ios_chrome_test_support',
+      'type': 'static_library',
+      'dependencies': [
+        '../../base/base.gyp:base',
+        '../provider/ios_provider_chrome.gyp:ios_provider_chrome_browser',
+        'ios_chrome.gyp:ios_chrome_browser',
+      ],
+      'sources': [
+        'test/testing_application_context.cc',
+        'test/testing_application_context.h',
+      ],
+    },
   ],
 }
diff --git a/ios/chrome/test/testing_application_context.cc b/ios/chrome/test/testing_application_context.cc
new file mode 100644
index 0000000..5c0edc7
--- /dev/null
+++ b/ios/chrome/test/testing_application_context.cc
@@ -0,0 +1,46 @@
+// Copyright 2014 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.
+
+#include "ios/chrome/test/testing_application_context.h"
+
+#include "base/logging.h"
+#include "ios/public/provider/chrome/browser/chrome_browser_provider.h"
+
+TestingApplicationContext::TestingApplicationContext()
+    : application_locale_("en"), local_state_(nullptr) {
+  DCHECK(!GetApplicationContext());
+  SetApplicationContext(this);
+}
+
+TestingApplicationContext::~TestingApplicationContext() {
+  DCHECK_EQ(this, GetApplicationContext());
+  SetApplicationContext(nullptr);
+}
+
+void TestingApplicationContext::SetLocalState(PrefService* local_state) {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  local_state_ = local_state;
+}
+
+// static
+TestingApplicationContext* TestingApplicationContext::GetGlobal() {
+  return static_cast<TestingApplicationContext*>(GetApplicationContext());
+}
+
+PrefService* TestingApplicationContext::GetLocalState() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  return local_state_;
+}
+
+net::URLRequestContextGetter*
+TestingApplicationContext::GetSystemURLRequestContext() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  return ios::GetChromeBrowserProvider()->GetSystemURLRequestContext();
+}
+
+const std::string& TestingApplicationContext::GetApplicationLocale() {
+  DCHECK(thread_checker_.CalledOnValidThread());
+  DCHECK(!application_locale_.empty());
+  return application_locale_;
+}
diff --git a/ios/chrome/test/testing_application_context.h b/ios/chrome/test/testing_application_context.h
new file mode 100644
index 0000000..99e4cc9
--- /dev/null
+++ b/ios/chrome/test/testing_application_context.h
@@ -0,0 +1,37 @@
+// Copyright 2014 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 IOS_CHROME_TEST_TESTING_APPLICATION_CONTEXT_H_
+#define IOS_CHROME_TEST_TESTING_APPLICATION_CONTEXT_H_
+
+#include "base/macros.h"
+#include "base/threading/thread_checker.h"
+#include "ios/chrome/browser/application_context.h"
+
+class TestingApplicationContext : public ApplicationContext {
+ public:
+  TestingApplicationContext();
+  ~TestingApplicationContext() override;
+
+  // Convenience method to get the current application context as a
+  // TestingApplicationContext.
+  static TestingApplicationContext* GetGlobal();
+
+  // Sets the local state.
+  void SetLocalState(PrefService* local_state);
+
+  // ApplicationContext implementation.
+  PrefService* GetLocalState() override;
+  net::URLRequestContextGetter* GetSystemURLRequestContext() override;
+  const std::string& GetApplicationLocale() override;
+
+ private:
+  base::ThreadChecker thread_checker_;
+  std::string application_locale_;
+  PrefService* local_state_;
+
+  DISALLOW_COPY_AND_ASSIGN(TestingApplicationContext);
+};
+
+#endif  // IOS_CHROME_TEST_TESTING_APPLICATION_CONTEXT_H_