[win/cros/lin] Add back the spellcheck menu.

chrome/browser/renderer_context_menu/spellchecker_submenu_observer_browsertest.cc

Index: chrome/browser/renderer_context_menu/spellchecker_submenu_observer_browsertest.cc
diff --git a/chrome/browser/renderer_context_menu/spellchecker_submenu_observer_browsertest.cc b/chrome/browser/renderer_context_menu/spellchecker_submenu_observer_browsertest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..bbdbbc7d250106383ea4d9777109c61e83a53f18
--- /dev/null
+++ b/chrome/browser/renderer_context_menu/spellchecker_submenu_observer_browsertest.cc
@@ -0,0 +1,228 @@
+// 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 "chrome/browser/renderer_context_menu/spellchecker_submenu_observer.h"
+
+#include "base/prefs/pref_service.h"
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/app/chrome_command_ids.h"
+#include "chrome/browser/renderer_context_menu/render_view_context_menu.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/test/base/in_process_browser_test.h"
+#include "chrome/test/base/testing_profile.h"
+#include "components/renderer_context_menu/render_view_context_menu_observer.h"
+
+using content::RenderViewHost;
+using content::WebContents;
+
+namespace {
+
+// A mock context menu used in this test. This class overrides virtual methods
+// derived from the RenderViewContextMenuProxy class to monitor calls from the
+// SpellingMenuObserver class.
+class MockRenderViewContextMenu : public ui::SimpleMenuModel::Delegate,
+                                  public RenderViewContextMenuProxy {
+ public:
+  // A menu item used in this test.
+  struct MockMenuItem {
+    MockMenuItem()
+        : command_id(0),
+          enabled(false),
+          checked(false),
+          hidden(true) {}
+    int command_id;
+    bool enabled;
+    bool checked;
+    bool hidden;
+    base::string16 title;
+  };
+
+  MockRenderViewContextMenu() : observer_(NULL), profile_(new TestingProfile) {}
+  ~MockRenderViewContextMenu() override {}
+
+  // SimpleMenuModel::Delegate implementation.
+  bool IsCommandIdChecked(int command_id) const override {
+    return observer_->IsCommandIdChecked(command_id);
+  }
+  bool IsCommandIdEnabled(int command_id) const override {
+    return observer_->IsCommandIdEnabled(command_id);
+  }
+  void ExecuteCommand(int command_id, int event_flags) override {
+    observer_->ExecuteCommand(command_id);
+  }
+  void MenuWillShow(ui::SimpleMenuModel* source) override {}
+  void MenuClosed(ui::SimpleMenuModel* source) override {}
+  bool GetAcceleratorForCommandId(int command_id,
+                                  ui::Accelerator* accelerator) override {
+    return false;
+  }
+
+  // RenderViewContextMenuProxy implementation.
+  void AddMenuItem(int command_id, const base::string16& title) override {}
+  void AddCheckItem(int command_id, const base::string16& title) override {}
+  void AddSeparator() override {}
+  void AddSubMenu(int command_id,
+                  const base::string16& label,
+                  ui::MenuModel* model) override {}
+  void UpdateMenuItem(int command_id,
+                      bool enabled,
+                      bool hidden,
+                      const base::string16& title) override {}
+  RenderViewHost* GetRenderViewHost() const override { return NULL; }
+  content::BrowserContext* GetBrowserContext() const override {
+    return profile_.get();
+  }
+  content::WebContents* GetWebContents() const override { return NULL; }
+
+  // Attaches a RenderViewContextMenuObserver to be tested.
+  void SetObserver(RenderViewContextMenuObserver* observer) {
+    observer_ = observer;
+  }
+
+  // Returns the number of items added by the test.
+  size_t GetMenuSize() const {
+    return 0;
+  }
+
+  // Returns the i-th item.
+  bool GetMenuItem(size_t i, MockMenuItem* item) const {
+    return false;
+  }
+
+  // Returns the writable profile used in this test.
+  PrefService* GetPrefs() {
+    return profile_->GetPrefs();
+  }
+
+ private:
+  // An observer used for initializing the status of menu items added in this
+  // test. This is a weak pointer, the test is responsible for deleting this
+  // object.
+  RenderViewContextMenuObserver* observer_;
+
+  // A dummy profile used in this test. Call GetPrefs() when a test needs to
+  // change this profile and use PrefService methods.
+  scoped_ptr<TestingProfile> profile_;
+
+  DISALLOW_COPY_AND_ASSIGN(MockRenderViewContextMenu);
+};
+
+// A test class used in this file. This test should be a browser test because it
+// accesses resources.
+class SpellCheckerSubMenuObserverTest : public InProcessBrowserTest {
+ public:
+  SpellCheckerSubMenuObserverTest() {}
+  ~SpellCheckerSubMenuObserverTest() override {}
+
+  void SetUpOnMainThread() override {
+    menu_.reset(new MockRenderViewContextMenu);
+    observer_.reset(
+        new SpellCheckerSubMenuObserver(menu_.get(), menu_.get(), 1));
+    menu_->SetObserver(observer_.get());
+  }
+
+  void TearDownOnMainThread() override {
+    menu_->SetObserver(nullptr);
+    observer_.reset();
+    menu_.reset();
+  }
+
+  void InitMenu(bool enable_spellcheck,
+                const std::string& accept_languages,
+                const std::vector<std::string>& dictionaries) {
+    menu()->GetPrefs()->SetBoolean(prefs::kEnableContinuousSpellcheck,
+                                   enable_spellcheck);
+    menu()->GetPrefs()->SetString(prefs::kAcceptLanguages, accept_languages);
+    base::ListValue dictionaries_value;
+    for (const auto& dict : dictionaries) {
+      dictionaries_value.AppendString(dict);
+    }
+    menu()->GetPrefs()->Set(prefs::kSpellCheckDictionaries, dictionaries_value);
+    observer()->InitMenu(content::ContextMenuParams());
+  }
+
+  void ExpectPreferences(bool spellcheck_enabled,
+                         const std::vector<std::string>& dictionaries) {
+    EXPECT_EQ(spellcheck_enabled, menu()->GetPrefs()->GetBoolean(
+                                      prefs::kEnableContinuousSpellcheck));
+    base::ListValue dictionaries_value;
+    for (const auto& dict : dictionaries) {
+      dictionaries_value.AppendString(dict);
+    }
+    EXPECT_TRUE(dictionaries_value.Equals(
+        menu()->GetPrefs()->GetList(prefs::kSpellCheckDictionaries)));
+  }
+
+  MockRenderViewContextMenu* menu() { return menu_.get(); }
+  SpellCheckerSubMenuObserver* observer() { return observer_.get(); }
+
+ private:
+  scoped_ptr<MockRenderViewContextMenu> menu_;
+  scoped_ptr<SpellCheckerSubMenuObserver> observer_;
+
+  DISALLOW_COPY_AND_ASSIGN(SpellCheckerSubMenuObserverTest);
+};
+
+}  // namespace
+
+// Tests that selecting the "Check Spelling While Typing" item toggles the value
+// of the "browser.enable_spellchecking" profile.
+IN_PROC_BROWSER_TEST_F(SpellCheckerSubMenuObserverTest, ToggleSpelling) {
+  InitMenu(true, "en-US", {"en-US"});
+
+  // Verify this menu has the "Check Spelling While Typing" item and this item
+  // is checked.
+  EXPECT_TRUE(menu()->IsCommandIdEnabled(IDC_CHECK_SPELLING_WHILE_TYPING));
+  EXPECT_TRUE(menu()->IsCommandIdChecked(IDC_CHECK_SPELLING_WHILE_TYPING));
+
+  // Select this item and verify that the "Check Spelling While Typing" item is
+  // not checked. Also, verify that the value of "browser.enable_spellchecking"
+  // is now false.
+  menu()->ExecuteCommand(IDC_CHECK_SPELLING_WHILE_TYPING, 0);
+  ExpectPreferences(false, {"en-US"});
+  EXPECT_FALSE(menu()->IsCommandIdChecked(IDC_CHECK_SPELLING_WHILE_TYPING));
+}
+
+// Single accept language is selected based on the dictionaries preference.
+// Consequently selecting multilingual spellcheck should copy all accept
+// languages into spellcheck dictionaries preference.
+IN_PROC_BROWSER_TEST_F(SpellCheckerSubMenuObserverTest, SelectMultilingual) {
+  InitMenu(true, "en-US,es", {"en-US"});
+  EXPECT_FALSE(menu()->IsCommandIdChecked(IDC_SPELLCHECK_MULTI_LINGUAL));
+  EXPECT_TRUE(menu()->IsCommandIdChecked(IDC_SPELLCHECK_LANGUAGES_FIRST));
+  EXPECT_FALSE(menu()->IsCommandIdChecked(IDC_SPELLCHECK_LANGUAGES_FIRST + 1));
+
+  menu()->ExecuteCommand(IDC_SPELLCHECK_MULTI_LINGUAL, 0);
+  ExpectPreferences(true, {"en-US", "es"});
+}
+
+// Multilingual spellcheck is selected when all dictionaries are used for
+// spellcheck. Consequently selecting "English (United States)" should set
+// spellcheck dictionaries preferences to ["en-US"].
+IN_PROC_BROWSER_TEST_F(SpellCheckerSubMenuObserverTest, SelectFirstLanguage) {
+  InitMenu(true, "en-US,es", {"en-US", "es"});
+  EXPECT_TRUE(menu()->IsCommandIdChecked(IDC_SPELLCHECK_MULTI_LINGUAL));
+  EXPECT_FALSE(menu()->IsCommandIdChecked(IDC_SPELLCHECK_LANGUAGES_FIRST));
+  EXPECT_FALSE(menu()->IsCommandIdChecked(IDC_SPELLCHECK_LANGUAGES_FIRST + 1));
+
+  menu()->ExecuteCommand(IDC_SPELLCHECK_LANGUAGES_FIRST, 0);
+  ExpectPreferences(true, {"en-US"});
+}
+
+// Single dictionary should be selected based on preferences.
+IN_PROC_BROWSER_TEST_F(SpellCheckerSubMenuObserverTest,
+                       SingleLanguageSelected) {
+  InitMenu(true, "en-US", {"en-US"});
+  EXPECT_TRUE(menu()->IsCommandIdChecked(IDC_SPELLCHECK_LANGUAGES_FIRST));
+}
+
+// Single dictionary should be deselected based on preferences. Selecting the
+// dictionary should update the preference.
+IN_PROC_BROWSER_TEST_F(SpellCheckerSubMenuObserverTest, SelectTheOnlyLanguage) {
+  InitMenu(true, "en-US", std::vector<std::string>());
+  EXPECT_FALSE(menu()->IsCommandIdChecked(IDC_SPELLCHECK_LANGUAGES_FIRST));
+
+  menu()->ExecuteCommand(IDC_SPELLCHECK_LANGUAGES_FIRST, 0);
+  ExpectPreferences(true, {"en-US"});
+}