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// Copyright (c) 2012 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 CHROME_BROWSER_SEARCH_ENGINES_SEARCH_TERMS_DATA_H_
#define CHROME_BROWSER_SEARCH_ENGINES_SEARCH_TERMS_DATA_H_
#include <string>
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/string16.h"
class Profile;
// All data needed by TemplateURLRef::ReplaceSearchTerms which typically may
// only be accessed on the UI thread.
class SearchTermsData {
public:
SearchTermsData();
virtual ~SearchTermsData();
// Returns the value to use for replacements of type GOOGLE_BASE_URL. This
// implementation simply returns the default value.
virtual std::string GoogleBaseURLValue() const;
// Returns the value for the GOOGLE_BASE_SUGGEST_URL term. This
// implementation simply returns the default value.
std::string GoogleBaseSuggestURLValue() const;
// Returns the locale used by the application. This implementation returns
// "en" and thus should be overridden where the result is actually meaningful.
virtual std::string GetApplicationLocale() const;
#if defined(ENABLE_RLZ)
// Returns the value for the Chrome Omnibox rlz. This implementation returns
// the empty string.
virtual string16 GetRlzParameterValue() const;
#endif
// Returns a string indicating whether Instant (in the visible-preview mode)
// is enabled, suitable for adding as a query string param to the homepage
// (instant_url) request. Returns an empty string if Instant is disabled,
// or if it's only active in a hidden field trial mode. Determining this
// requires accessing the Profile, so this can only ever be non-empty for
// UIThreadSearchTermsData.
virtual std::string InstantEnabledParam() const;
private:
DISALLOW_COPY_AND_ASSIGN(SearchTermsData);
};
// Implementation of SearchTermsData that is only usable on the UI thread.
class UIThreadSearchTermsData : public SearchTermsData {
public:
// If |profile_| is NULL, the Google base URL accessors will return default
// values, and InstantEnabledParam() will return the empty string.
explicit UIThreadSearchTermsData(Profile* profile);
virtual std::string GoogleBaseURLValue() const OVERRIDE;
virtual std::string GetApplicationLocale() const OVERRIDE;
#if defined(ENABLE_RLZ)
virtual string16 GetRlzParameterValue() const OVERRIDE;
#endif
virtual std::string InstantEnabledParam() const OVERRIDE;
// Used by tests to override the value for the Google base URL. Passing the
// empty string cancels this override.
static void SetGoogleBaseURL(const std::string& base_url);
private:
static std::string* google_base_url_;
Profile* profile_;
DISALLOW_COPY_AND_ASSIGN(UIThreadSearchTermsData);
};
#endif // CHROME_BROWSER_SEARCH_ENGINES_SEARCH_TERMS_DATA_H_
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