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// Copyright 2018 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 COMPONENTS_OMNIBOX_BROWSER_QUERY_IN_OMNIBOX_H_
#define COMPONENTS_OMNIBOX_BROWSER_QUERY_IN_OMNIBOX_H_
#include "base/macros.h"
#include "base/strings/string16.h"
#include "components/security_state/core/security_state.h"
#include "url/gurl.h"
class AutocompleteClassifier;
class TemplateURLService;
// This class holds the business logic for Query in Omnibox shared between both
// Android and Desktop.
class QueryInOmnibox {
public:
QueryInOmnibox(AutocompleteClassifier* autocomplete_classifier,
TemplateURLService* template_url_service);
// Returns true if the toolbar should display the search terms. When this
// method returns true, the extracted search terms will be filled into
// |search_terms| if its not nullptr.
//
// This method will return false if any of the following are true:
// - Query in Omnibox is disabled
// - |security_level| is insufficient to show search terms instead of the URL
// - |url| is not from the default search provider
// - There are no search terms to extract from |url|
// - The extracted search terms look too much like a URL (could confuse user)
//
// This method can be called with nullptr |search_terms| if the caller wants
// to check the display status only.
bool GetDisplaySearchTerms(security_state::SecurityLevel security_level,
const GURL& url,
base::string16* search_terms);
// Sets a flag telling the model to ignore the security level in its check
// for whether to display search terms or not. This is useful for avoiding the
// flicker that occurs when loading a SRP URL before our SSL state updates.
void set_ignore_security_level(bool ignore_security_level) {
ignore_security_level_ = ignore_security_level;
}
private:
// Extracts search terms from |url|. Returns an empty string if |url| is not
// from the default search provider, if there are no search terms in |url|,
// or if the extracted search terms look too much like a URL.
base::string16 ExtractSearchTermsInternal(const GURL& url);
// If true, the security level preconditions are ignored for displaying the
// query in the omnibox.
bool ignore_security_level_ = false;
// Because extracting search terms from a URL string is relatively expensive,
// and we want to support cheap calls to GetDisplaySearchTerms, cache the
// result of the last-parsed URL string.
base::string16 cached_search_terms_;
GURL cached_url_;
// Non-owning weak pointers.
AutocompleteClassifier* const autocomplete_classifier_;
TemplateURLService* const template_url_service_;
DISALLOW_COPY_AND_ASSIGN(QueryInOmnibox);
};
#endif // COMPONENTS_OMNIBOX_BROWSER_QUERY_IN_OMNIBOX_H_
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