Integrate the Spelling service to Chrome.

chrome/browser/tab_contents/render_view_context_menu.cc

 // Copyright (c) 2011 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 <algorithm>
 #include <set>
 
 #include "chrome/browser/tab_contents/render_view_context_menu.h"
 
 #include "base/command_line.h"
@@ skipping 19 matching lines @@
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/printing/print_view_manager.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_io_data.h"
 #include "chrome/browser/search_engines/template_url.h"
 #include "chrome/browser/search_engines/template_url_service.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/spellchecker/spellcheck_host.h"
 #include "chrome/browser/spellchecker/spellcheck_host_metrics.h"
 #include "chrome/browser/spellchecker/spellchecker_platform_engine.h"
+#include "chrome/browser/tab_contents/spelling_menu_observer.h"
 #include "chrome/browser/translate/translate_manager.h"
 #include "chrome/browser/translate/translate_prefs.h"
 #include "chrome/browser/translate/translate_tab_helper.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/search_engines/search_engine_tab_helper.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/print_messages.h"
@@ skipping 495 matching lines @@
       break;
     case WebContextMenuData::MediaTypePlugin:
       AppendPluginItems();
       break;
 #ifdef WEBCONTEXT_MEDIATYPEFILE_DEFINED
     case WebContextMenuData::MediaTypeFile:
       break;
 #endif
   }
 
+  if (params_.is_editable) {
+    // Add a menu item that shows suggestions from the Spelling service.
+    const CommandLine& command_line = *CommandLine::ForCurrentProcess();
+    if (command_line.HasSwitch(switches::kExperimentalSpellcheckerFeatures)) {
+      PrefService* pref = profile_->GetPrefs();
+      bool use_spelling_service =
+          pref && pref->GetBoolean(prefs::kSpellCheckUseSpellingService);
+      if (use_spelling_service) {
+        if (!spelling_menu_observer_.get())
+            spelling_menu_observer_.reset(new SpellingMenuObserver(this));
+
+        if (spelling_menu_observer_.get())
+          observers_.AddObserver(spelling_menu_observer_.get());
+      }
+    }
+  }
+
+  // Ask our observers to add their menu items.
+  FOR_EACH_OBSERVER(RenderViewContextMenuObserver, observers_,
+                    InitMenu(params_));
+
   if (params_.is_editable)
     AppendEditableItems();
   else if (has_selection)
     AppendCopyItem();
 
   if (has_selection)
     AppendSearchProvider();
 
   if (!IsDevToolsURL(params_.page_url))
     AppendAllExtensionItems();
 
   AppendDeveloperItems();
 }
 
 void RenderViewContextMenu::LookUpInDictionary() {
   // Used only in the Mac port.
   NOTREACHED();
 }
 
+void RenderViewContextMenu::AddMenuItem(int command_id,
+                                        const string16& title) {
+  menu_model_.AddItem(command_id, title);
+}
+
+void RenderViewContextMenu::UpdateMenuItem(int command_id,
+                                           bool enabled,
+                                           const string16& label) {
+  // This function needs platform-specific implementation.
+  NOTIMPLEMENTED();
+}
+
+
+RenderViewHost* RenderViewContextMenu::GetRenderViewHost() const {
+  return source_tab_contents_->render_view_host();
+}
+
+Profile* RenderViewContextMenu::GetProfile() const {
+  return profile_;
+}
+
 bool RenderViewContextMenu::AppendCustomItems() {
   size_t total_items = 0;
   AddCustomItemsToMenu(params_.custom_items, 0, &total_items, this,
                        &menu_model_);
   return total_items > 0;
 }
 
 void RenderViewContextMenu::AppendDeveloperItems() {
   // Show Inspect Element in DevTools itself only in case of the debug
   // devtools build.
@@ skipping 203 matching lines @@
     menu_model_.AddSeparator();
 
     // |spellcheck_host| can be null when the suggested word is
     // provided by Web SpellCheck API.
     SpellCheckHost* spellcheck_host = profile_->GetSpellCheckHost();
     if (spellcheck_host && spellcheck_host->GetMetrics())
       spellcheck_host->GetMetrics()->RecordSuggestionStats(1);
   }
 
   // If word is misspelled, give option for "Add to dictionary"
-  if (!params_.misspelled_word.empty()) {
+  if (!spelling_menu_observer_.get() && !params_.misspelled_word.empty()) {
     if (params_.dictionary_suggestions.empty()) {
       menu_model_.AddItem(IDC_CONTENT_CONTEXT_NO_SPELLING_SUGGESTIONS,
           l10n_util::GetStringUTF16(
               IDS_CONTENT_CONTEXT_NO_SPELLING_SUGGESTIONS));
     }
     menu_model_.AddItemWithStringId(IDC_SPELLCHECK_ADD_TO_DICTIONARY,
                                     IDS_CONTENT_CONTEXT_ADD_TO_DICTIONARY);
     menu_model_.AddSeparator();
   }
 
@@ skipping 146 matching lines @@
     ExtensionMenuItem* item = manager->GetItemById(i->second);
     if (item)
       return item;
   }
   return NULL;
 }
 
 // Menu delegate functions -----------------------------------------------------
 
 bool RenderViewContextMenu::IsCommandIdEnabled(int id) const {
+  // If this command is is added by one of our observers, we dispatch it to the
+  // observer.
+  ObserverListBase<RenderViewContextMenuObserver>::Iterator it(observers_);
+  RenderViewContextMenuObserver* observer;
+  while ((observer = it.GetNext()) != NULL) {
+    if (observer->IsCommandIdSupported(id))
+      return observer->IsCommandIdEnabled(id);
+  }
+
   if (id == IDC_PRINT &&
       (source_tab_contents_->content_restrictions() &
           CONTENT_RESTRICTION_PRINT)) {
     return false;
   }
 
   if (id == IDC_SAVE_PAGE &&
       (source_tab_contents_->content_restrictions() &
           CONTENT_RESTRICTION_SAVE)) {
     return false;
@@ skipping 348 matching lines @@
   if ((id < IDC_SPELLCHECK_LANGUAGES_FIRST) ||
       (id >= IDC_SPELLCHECK_LANGUAGES_LAST))
     return false;
 
   std::vector<std::string> languages;
   return SpellCheckHost::GetSpellCheckLanguages(profile_, &languages) ==
       (id - IDC_SPELLCHECK_LANGUAGES_FIRST);
 }
 
 void RenderViewContextMenu::ExecuteCommand(int id) {
+  // If this command is is added by one of our observers, we dispatch it to the
+  // observer.
+  ObserverListBase<RenderViewContextMenuObserver>::Iterator it(observers_);
+  RenderViewContextMenuObserver* observer;
+  while ((observer = it.GetNext()) != NULL) {
+    if (observer->IsCommandIdSupported(id))
+      return observer->ExecuteCommand(id);
+  }
+
   // Check to see if one of the spell check language ids have been clicked.
   if (id >= IDC_SPELLCHECK_LANGUAGES_FIRST &&
       id < IDC_SPELLCHECK_LANGUAGES_LAST) {
     const size_t language_number = id - IDC_SPELLCHECK_LANGUAGES_FIRST;
     std::vector<std::string> languages;
     SpellCheckHost::GetSpellCheckLanguages(profile_, &languages);
     if (language_number < languages.size()) {
       StringPrefMember dictionary_language;
       dictionary_language.Init(prefs::kSpellCheckDictionary,
           profile_->GetPrefs(), NULL);
@@ skipping 513 matching lines @@
       g_browser_process->clipboard());
 }
 
 void RenderViewContextMenu::MediaPlayerActionAt(
     const gfx::Point& location,
     const WebMediaPlayerAction& action) {
   RenderViewHost* rvh = source_tab_contents_->render_view_host();
   rvh->Send(new ViewMsg_MediaPlayerActionAt(
       rvh->routing_id(), location, action));
 }