Options2: Pull the trigger.

chrome/browser/ui/webui/options2/font_settings_handler.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 "chrome/browser/ui/webui/options2/font_settings_handler.h"
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "base/i18n/rtl.h"
+#include "base/string_number_conversions.h"
+#include "base/string_util.h"
+#include "base/values.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/character_encoding.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/webui/options2/font_settings_utils.h"
+#include "chrome/common/chrome_notification_types.h"
+#include "chrome/common/pref_names.h"
+#include "content/public/browser/notification_details.h"
+#include "grit/chromium_strings.h"
+#include "grit/generated_resources.h"
+#include "ui/base/l10n/l10n_util.h"
+
+FontSettingsHandler::FontSettingsHandler() {
+}
+
+FontSettingsHandler::~FontSettingsHandler() {
+}
+
+void FontSettingsHandler::GetLocalizedValues(
+    DictionaryValue* localized_strings) {
+  DCHECK(localized_strings);
+
+  static OptionsStringResource resources[] = {
+    { "fontSettingsStandard",
+      IDS_FONT_LANGUAGE_SETTING_FONT_SELECTOR_STANDARD_LABEL },
+    { "fontSettingsSerif",
+      IDS_FONT_LANGUAGE_SETTING_FONT_SELECTOR_SERIF_LABEL },
+    { "fontSettingsSansSerif",
+      IDS_FONT_LANGUAGE_SETTING_FONT_SELECTOR_SANS_SERIF_LABEL },
+    { "fontSettingsFixedWidth",
+      IDS_FONT_LANGUAGE_SETTING_FONT_SELECTOR_FIXED_WIDTH_LABEL },
+    { "fontSettingsMinimumSize",
+      IDS_FONT_LANGUAGE_SETTING_MINIMUM_FONT_SIZE_TITLE },
+    { "fontSettingsEncoding",
+      IDS_FONT_LANGUAGE_SETTING_FONT_SUB_DIALOG_ENCODING_TITLE },
+    { "fontSettingsSizeTiny",
+      IDS_FONT_LANGUAGE_SETTING_FONT_SIZE_TINY },
+    { "fontSettingsSizeHuge",
+      IDS_FONT_LANGUAGE_SETTING_FONT_SIZE_HUGE },
+    { "fontSettingsLoremIpsum",
+      IDS_FONT_LANGUAGE_SETTING_LOREM_IPSUM },
+  };
+
+  RegisterStrings(localized_strings, resources, arraysize(resources));
+  RegisterTitle(localized_strings, "fontSettingsPage",
+                IDS_FONT_LANGUAGE_SETTING_FONT_TAB_TITLE);
+  localized_strings->SetString("fontSettingsPlaceholder",
+      l10n_util::GetStringUTF16(
+          IDS_FONT_LANGUAGE_SETTING_PLACEHOLDER));
+}
+
+void FontSettingsHandler::Initialize() {
+  DCHECK(web_ui_);
+  SetUpStandardFontSample();
+  SetUpSerifFontSample();
+  SetUpSansSerifFontSample();
+  SetUpFixedFontSample();
+  SetUpMinimumFontSample();
+}
+
+WebUIMessageHandler* FontSettingsHandler::Attach(WebUI* web_ui) {
+  // Call through to superclass.
+  WebUIMessageHandler* handler = OptionsPage2UIHandler::Attach(web_ui);
+
+  // Perform validation for saved fonts.
+  DCHECK(web_ui_);
+  PrefService* pref_service = Profile::FromWebUI(web_ui_)->GetPrefs();
+  FontSettingsUtilities::ValidateSavedFonts(pref_service);
+
+  // Register for preferences that we need to observe manually.
+  standard_font_.Init(prefs::kWebKitStandardFontFamily, pref_service, this);
+  serif_font_.Init(prefs::kWebKitSerifFontFamily, pref_service, this);
+  sans_serif_font_.Init(prefs::kWebKitSansSerifFontFamily, pref_service, this);
+  fixed_font_.Init(prefs::kWebKitFixedFontFamily, pref_service, this);
+  font_encoding_.Init(prefs::kDefaultCharset, pref_service, this);
+  default_font_size_.Init(prefs::kWebKitDefaultFontSize, pref_service, this);
+  default_fixed_font_size_.Init(prefs::kWebKitDefaultFixedFontSize,
+                                pref_service, this);
+  minimum_font_size_.Init(prefs::kWebKitMinimumFontSize, pref_service, this);
+
+  // Return result from the superclass.
+  return handler;
+}
+
+void FontSettingsHandler::RegisterMessages() {
+  web_ui_->RegisterMessageCallback("fetchFontsData",
+      base::Bind(&FontSettingsHandler::HandleFetchFontsData,
+                 base::Unretained(this)));
+}
+
+void FontSettingsHandler::HandleFetchFontsData(const ListValue* args) {
+  content::GetFontListAsync(
+      base::Bind(&FontSettingsHandler::FontsListHasLoaded,
+                 base::Unretained(this)));
+}
+
+void FontSettingsHandler::FontsListHasLoaded(
+    scoped_refptr<content::FontListResult> list) {
+  ListValue encoding_list;
+  const std::vector<CharacterEncoding::EncodingInfo>* encodings;
+  PrefService* pref_service = Profile::FromWebUI(web_ui_)->GetPrefs();
+  encodings = CharacterEncoding::GetCurrentDisplayEncodings(
+      g_browser_process->GetApplicationLocale(),
+      pref_service->GetString(prefs::kStaticEncodings),
+      pref_service->GetString(prefs::kRecentlySelectedEncoding));
+  DCHECK(encodings);
+  DCHECK(!encodings->empty());
+
+  std::vector<CharacterEncoding::EncodingInfo>::const_iterator it;
+  for (it = encodings->begin(); it != encodings->end(); ++it) {
+    ListValue* option = new ListValue();
+    if (it->encoding_id) {
+      int cmd_id = it->encoding_id;
+      std::string encoding =
+      CharacterEncoding::GetCanonicalEncodingNameByCommandId(cmd_id);
+      string16 name = it->encoding_display_name;
+      base::i18n::AdjustStringForLocaleDirection(&name);
+      option->Append(Value::CreateStringValue(encoding));
+      option->Append(Value::CreateStringValue(name));
+    } else {
+      // Add empty name/value to indicate a separator item.
+      option->Append(Value::CreateStringValue(""));
+      option->Append(Value::CreateStringValue(""));
+    }
+    encoding_list.Append(option);
+  }
+
+  ListValue selected_values;
+  selected_values.Append(Value::CreateStringValue(standard_font_.GetValue()));
+  selected_values.Append(Value::CreateStringValue(serif_font_.GetValue()));
+  selected_values.Append(Value::CreateStringValue(sans_serif_font_.GetValue()));
+  selected_values.Append(Value::CreateStringValue(fixed_font_.GetValue()));
+  selected_values.Append(Value::CreateStringValue(font_encoding_.GetValue()));
+
+  web_ui_->CallJavascriptFunction("FontSettings.setFontsData",
+                                  *list->list.get(), encoding_list,
+                                  selected_values);
+}
+
+void FontSettingsHandler::Observe(int type,
+                                  const content::NotificationSource& source,
+                                  const content::NotificationDetails& details) {
+  if (type == chrome::NOTIFICATION_PREF_CHANGED) {
+    std::string* pref_name = content::Details<std::string>(details).ptr();
+    if (*pref_name == prefs::kWebKitStandardFontFamily) {
+      SetUpStandardFontSample();
+    } else if (*pref_name == prefs::kWebKitSerifFontFamily) {
+      SetUpSerifFontSample();
+    } else if (*pref_name == prefs::kWebKitSansSerifFontFamily) {
+      SetUpSansSerifFontSample();
+    } else if (*pref_name == prefs::kWebKitFixedFontFamily ||
+               *pref_name == prefs::kWebKitDefaultFixedFontSize) {
+      SetUpFixedFontSample();
+    } else if (*pref_name == prefs::kWebKitDefaultFontSize) {
+      SetUpStandardFontSample();
+      SetUpSerifFontSample();
+      SetUpSansSerifFontSample();
+    } else if (*pref_name == prefs::kWebKitMinimumFontSize) {
+      SetUpMinimumFontSample();
+    }
+  }
+}
+
+void FontSettingsHandler::SetUpStandardFontSample() {
+  base::StringValue font_value(standard_font_.GetValue());
+  base::FundamentalValue size_value(default_font_size_.GetValue());
+  web_ui_->CallJavascriptFunction(
+      "FontSettings.setUpStandardFontSample", font_value, size_value);
+}
+
+void FontSettingsHandler::SetUpSerifFontSample() {
+  base::StringValue font_value(serif_font_.GetValue());
+  base::FundamentalValue size_value(default_font_size_.GetValue());
+  web_ui_->CallJavascriptFunction(
+      "FontSettings.setUpSerifFontSample", font_value, size_value);
+}
+
+void FontSettingsHandler::SetUpSansSerifFontSample() {
+  base::StringValue font_value(sans_serif_font_.GetValue());
+  base::FundamentalValue size_value(default_font_size_.GetValue());
+  web_ui_->CallJavascriptFunction(
+      "FontSettings.setUpSansSerifFontSample", font_value, size_value);
+}
+
+void FontSettingsHandler::SetUpFixedFontSample() {
+  base::StringValue font_value(fixed_font_.GetValue());
+  base::FundamentalValue size_value(default_fixed_font_size_.GetValue());
+  web_ui_->CallJavascriptFunction(
+      "FontSettings.setUpFixedFontSample", font_value, size_value);
+}
+
+void FontSettingsHandler::SetUpMinimumFontSample() {
+  base::FundamentalValue size_value(minimum_font_size_.GetValue());
+  web_ui_->CallJavascriptFunction("FontSettings.setUpMinimumFontSample",
+                                  size_value);
+}