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// Copyright 2015 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/settings/font_handler.h"
#include <stddef.h>
#include <utility>
#include "base/bind_helpers.h"
#include "base/i18n/rtl.h"
#include "base/prefs/pref_service.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/character_encoding.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ui/webui/options/font_settings_utils.h"
#include "chrome/common/pref_names.h"
#include "content/public/browser/font_list_async.h"
#include "content/public/browser/web_ui.h"
namespace settings {
FontHandler::FontHandler(content::WebUI* webui)
: weak_ptr_factory_(this) {
// Perform validation for saved fonts.
PrefService* pref_service = Profile::FromWebUI(webui)->GetPrefs();
options::FontSettingsUtilities::ValidateSavedFonts(pref_service);
}
FontHandler::~FontHandler() {}
void FontHandler::RegisterMessages() {
web_ui()->RegisterMessageCallback(
"fetchFontsData", base::Bind(&FontHandler::HandleFetchFontsData,
base::Unretained(this)));
}
void FontHandler::HandleFetchFontsData(
const base::ListValue* /*args*/) {
content::GetFontListAsync(base::Bind(&FontHandler::FontListHasLoaded,
weak_ptr_factory_.GetWeakPtr()));
}
void FontHandler::FontListHasLoaded(scoped_ptr<base::ListValue> list) {
// Font list. Selects the directionality for the fonts in the given list.
for (size_t i = 0; i < list->GetSize(); i++) {
base::ListValue* font;
bool has_font = list->GetList(i, &font);
DCHECK(has_font);
base::string16 value;
bool has_value = font->GetString(1, &value);
DCHECK(has_value);
bool has_rtl_chars = base::i18n::StringContainsStrongRTLChars(value);
font->Append(new base::StringValue(has_rtl_chars ? "rtl" : "ltr"));
}
// Character 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->empty());
base::ListValue encoding_list;
for (const auto& it : *encodings) {
scoped_ptr<base::ListValue> option(new base::ListValue());
if (it.encoding_id) {
option->AppendString(
CharacterEncoding::GetCanonicalEncodingNameByCommandId(
it.encoding_id));
option->AppendString(it.encoding_display_name);
option->AppendString(
base::i18n::StringContainsStrongRTLChars(it.encoding_display_name)
? "rtl"
: "ltr");
} else {
// Add empty value to indicate a separator item.
option->AppendString(std::string());
}
encoding_list.Append(std::move(option));
}
web_ui()->CallJavascriptFunction("Settings.setFontsData", *list,
encoding_list);
}
} // namespace settings
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