Upstream ios/web_view source code.

ios/web_view will provide a view similar to WKWebView while additionally exposing Chromium features.

BUG= 622967

Review-Url: https://codereview.chromium.org/2643773005
Cr-Commit-Position: refs/heads/master@{#446056}

ios/BUILD.gn

@@ -31,6 +31,7 @@ group("all") {
       "//ios/clean/chrome/app:chrome_clean_skeleton",
       "//ios/showcase",
       "//ios/web/shell:ios_web_shell",
+      "//ios/web_view/shell:ios_web_view_shell",
 
       # List all the test targets that need to be build on iOS by default.
       "//ios/chrome/test:all_tests",

ios/web_view/BUILD.gn

@@ -0,0 +1,14 @@
+# Copyright 2016 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.
+
+# Public target that should be used to depend on web_view. Only give access
+# to the web_view public headers while still linking with the implementation.
+group("web_view") {
+  public_deps = [
+    "//ios/web_view/public",
+  ]
+  deps = [
+    "//ios/web_view/internal",
+  ]
+}

ios/web_view/DEPS

@@ -0,0 +1,5 @@
+include_rules = [
+  # The subdirectories in ios/web_view/ will manually allow their own include
+  # directories in ios/web_view/ so we disallow all of them.
+  "-ios/web_view",
+]

ios/web_view/OWNERS

@@ -0,0 +1,6 @@
+eugenebut@chromium.org
+rohitrao@chromium.org
+
+# These are for the common case of adding or renaming files. If you're doing
+# structural changes, please get a review from an OWNER.
+per-file BUILD.gn=*

ios/web_view/internal/BUILD.gn

@@ -0,0 +1,48 @@
+# Copyright 2016 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.
+
+source_set("internal") {
+  visibility = [
+    "//ios/web_view",
+    "//ios/web_view/internal/*",
+  ]
+
+  sources = [
+    "criwv.mm",
+    "criwv_browser_state.h",
+    "criwv_browser_state.mm",
+    "criwv_network_delegate.cc",
+    "criwv_network_delegate.h",
+    "criwv_url_request_context_getter.h",
+    "criwv_url_request_context_getter.mm",
+    "criwv_web_client.h",
+    "criwv_web_client.mm",
+    "criwv_web_main_delegate.h",
+    "criwv_web_main_delegate.mm",
+    "criwv_web_main_parts.h",
+    "criwv_web_main_parts.mm",
+    "criwv_web_view_impl.h",
+    "criwv_web_view_impl.mm",
+    "pref_names.cc",
+    "pref_names.h",
+  ]
+  deps = [
+    "//base",
+    "//components/pref_registry",
+    "//components/prefs",
+    "//components/translate/core/browser",
+    "//components/translate/core/common",
+    "//ios/net",
+    "//ios/web",
+    "//ios/web:user_agent",
+    "//ios/web/public/app",
+    "//ios/web_view/internal/translate",
+    "//ios/web_view/public",
+    "//net",
+    "//net:extras",
+    "//ui/base",
+    "//url",
+  ]
+  allow_circular_includes_from = [ "//ios/web_view/internal/translate" ]
+}

ios/web_view/internal/DEPS

@@ -0,0 +1,20 @@
+include_rules = [
+  "+base",
+  "+components/infobars/core",
+  "+components/keyed_service/core",
+  "+components/keyed_service/ios",
+  "+components/pref_registry",
+  "+components/prefs",
+  "+components/translate/core",
+  "+components/translate/ios",
+  "+ios/net",
+  "+ios/web/public",
+  "+ios/web_view",
+  "+net",
+  "+ui/base",
+
+  # TODO(crbug.com/622967): Remove these exceptions.
+  "+ios/web/navigation/crw_session_controller.h",
+  "+ios/web/web_state/ui/crw_web_controller.h",
+  "+ios/web/web_state/web_state_impl.h",
+]

ios/web_view/internal/criwv.mm

@@ -0,0 +1,73 @@
+// 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.
+
+#import "ios/web_view/public/criwv.h"
+
+#include <memory>
+
+#include "base/location.h"
+#import "base/mac/bind_objc_block.h"
+#include "base/single_thread_task_runner.h"
+#include "ios/web/public/app/web_main.h"
+#include "ios/web/public/web_thread.h"
+#include "ios/web_view/internal/criwv_browser_state.h"
+#import "ios/web_view/internal/criwv_web_client.h"
+#import "ios/web_view/internal/criwv_web_main_delegate.h"
+#import "ios/web_view/internal/criwv_web_view_impl.h"
+#import "ios/web_view/public/criwv_delegate.h"
+
+namespace {
+CRIWV* g_criwv = nil;
+}
+
+@interface CRIWV () {
+  id<CRIWVDelegate> _delegate;
+  std::unique_ptr<ios_web_view::CRIWVWebMainDelegate> _webMainDelegate;
+  std::unique_ptr<web::WebMain> _webMain;
+}
+
+- (instancetype)initWithDelegate:(id<CRIWVDelegate>)delegate;
+- (ios_web_view::CRIWVBrowserState*)browserState;
+@end
+
+@implementation CRIWV
+
++ (void)configureWithDelegate:(id<CRIWVDelegate>)delegate {
+  g_criwv = [[CRIWV alloc] initWithDelegate:delegate];
+}
+
++ (void)shutDown {
+  [g_criwv release];
+  g_criwv = nil;
+}
+
++ (id<CRIWVWebView>)webView {
+  return [[[CRIWVWebViewImpl alloc] initWithBrowserState:[g_criwv browserState]]
+      autorelease];
+}
+
+- (instancetype)initWithDelegate:(id<CRIWVDelegate>)delegate {
+  self = [super init];
+  if (self) {
+    _delegate = delegate;
+    _webMainDelegate.reset(new ios_web_view::CRIWVWebMainDelegate(_delegate));
+    web::WebMainParams params(_webMainDelegate.get());
+    _webMain.reset(new web::WebMain(params));
+  }
+  return self;
+}
+
+- (void)dealloc {
+  _webMain.reset();
+  _webMainDelegate.reset();
+  [super dealloc];
+}
+
+- (ios_web_view::CRIWVBrowserState*)browserState {
+  ios_web_view::CRIWVWebClient* client =
+      static_cast<ios_web_view::CRIWVWebClient*>(web::GetWebClient());
+  return client->browser_state();
+}
+
+@end

ios/web_view/internal/criwv_browser_state.h

@@ -0,0 +1,59 @@
+// 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_WEB_VIEW_INTERNAL_CRIWV_BROWSER_STATE_H_
+#define IOS_WEB_VIEW_INTERNAL_CRIWV_BROWSER_STATE_H_
+
+#include <memory>
+
+#include "base/files/file_path.h"
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "components/prefs/pref_service.h"
+#include "ios/web/public/browser_state.h"
+
+namespace user_prefs {
+class PrefRegistrySyncable;
+}
+
+namespace ios_web_view {
+
+class CRIWVURLRequestContextGetter;
+
+// CRIWV implementation of BrowserState.  Can only be called from the UI thread.
+class CRIWVBrowserState : public web::BrowserState {
+ public:
+  CRIWVBrowserState();
+  ~CRIWVBrowserState() override;
+
+  // web::BrowserState implementation.
+  bool IsOffTheRecord() const override;
+  base::FilePath GetStatePath() const override;
+  net::URLRequestContextGetter* GetRequestContext() override;
+
+  // Returns the associated PrefService.
+  PrefService* GetPrefs();
+
+  // Converts from web::BrowserState to CRIWVBrowserState.
+  static CRIWVBrowserState* FromBrowserState(web::BrowserState* browser_state);
+
+ private:
+  // Registers the preferences for this BrowserState.
+  void RegisterPrefs(user_prefs::PrefRegistrySyncable* pref_registry);
+
+  // The path associated with this BrowserState object.
+  base::FilePath path_;
+
+  // The request context getter for this BrowserState object.
+  scoped_refptr<CRIWVURLRequestContextGetter> request_context_getter_;
+
+  // The PrefService associated with this BrowserState.
+  std::unique_ptr<PrefService> prefs_;
+
+  DISALLOW_COPY_AND_ASSIGN(CRIWVBrowserState);
+};
+
+}  // namespace ios_web_view
+
+#endif  // IOS_WEB_VIEW_INTERNAL_CRIWV_BROWSER_STATE_H_

ios/web_view/internal/criwv_browser_state.mm

@@ -0,0 +1,92 @@
+// 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/web_view/internal/criwv_browser_state.h"
+
+#include <memory>
+
+#include "base/base_paths.h"
+#include "base/files/file_path.h"
+#include "base/message_loop/message_loop.h"
+#include "base/path_service.h"
+#include "base/threading/thread_restrictions.h"
+#include "components/pref_registry/pref_registry_syncable.h"
+#include "components/prefs/json_pref_store.h"
+#include "components/prefs/pref_filter.h"
+#include "components/prefs/pref_service_factory.h"
+#include "components/translate/core/browser/translate_prefs.h"
+#include "components/translate/core/common/translate_pref_names.h"
+#include "ios/web/public/web_thread.h"
+#include "ios/web_view/internal/criwv_url_request_context_getter.h"
+#include "ios/web_view/internal/pref_names.h"
+#include "ui/base/l10n/l10n_util_mac.h"
+
+namespace {
+const char kPreferencesFilename[] = "Preferences";
+}
+
+namespace ios_web_view {
+
+CRIWVBrowserState::CRIWVBrowserState() : web::BrowserState() {
+  CHECK(PathService::Get(base::DIR_APP_DATA, &path_));
+
+  request_context_getter_ = new CRIWVURLRequestContextGetter(
+      GetStatePath(),
+      web::WebThread::GetTaskRunnerForThread(web::WebThread::IO),
+      web::WebThread::GetTaskRunnerForThread(web::WebThread::FILE),
+      web::WebThread::GetTaskRunnerForThread(web::WebThread::CACHE));
+
+  // Initialize prefs.
+  scoped_refptr<user_prefs::PrefRegistrySyncable> pref_registry =
+      new user_prefs::PrefRegistrySyncable;
+  RegisterPrefs(pref_registry.get());
+  scoped_refptr<base::SequencedTaskRunner> sequenced_task_runner =
+      JsonPrefStore::GetTaskRunnerForFile(path_,
+                                          web::WebThread::GetBlockingPool());
+
+  scoped_refptr<PersistentPrefStore> user_pref_store = new JsonPrefStore(
+      path_.Append(kPreferencesFilename), sequenced_task_runner, nullptr);
+
+  PrefServiceFactory factory;
+  factory.set_user_prefs(user_pref_store);
+  prefs_ = factory.Create(pref_registry.get());
+}
+
+CRIWVBrowserState::~CRIWVBrowserState() {}
+
+PrefService* CRIWVBrowserState::GetPrefs() {
+  DCHECK(prefs_);
+  return prefs_.get();
+}
+
+// static
+CRIWVBrowserState* CRIWVBrowserState::FromBrowserState(
+    web::BrowserState* browser_state) {
+  return static_cast<CRIWVBrowserState*>(browser_state);
+}
+
+bool CRIWVBrowserState::IsOffTheRecord() const {
+  return false;
+}
+
+base::FilePath CRIWVBrowserState::GetStatePath() const {
+  return path_;
+}
+
+net::URLRequestContextGetter* CRIWVBrowserState::GetRequestContext() {
+  return request_context_getter_.get();
+}
+
+void CRIWVBrowserState::RegisterPrefs(
+    user_prefs::PrefRegistrySyncable* pref_registry) {
+  // TODO(crbug.com/679895): Find a good value for the kAcceptLanguages pref.
+  // TODO(crbug.com/679895): Pass this value to the network stack somehow, for
+  // the HTTP header.
+  pref_registry->RegisterStringPref(prefs::kAcceptLanguages,
+                                    l10n_util::GetLocaleOverride());
+  pref_registry->RegisterBooleanPref(prefs::kEnableTranslate, true);
+  translate::TranslatePrefs::RegisterProfilePrefs(pref_registry);
+}
+
+}  // namespace ios_web_view