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// Copyright 2013 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_AUTOFILL_CORE_BROWSER_AUTOCOMPLETE_HISTORY_MANAGER_H_
#define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOCOMPLETE_HISTORY_MANAGER_H_
#include <vector>
#include "base/macros.h"
#include "components/autofill/core/browser/webdata/autofill_webdata_service.h"
#include "components/prefs/pref_member.h"
#include "components/webdata/common/web_data_service_consumer.h"
namespace autofill {
class AutofillDriver;
class AutofillExternalDelegate;
class AutofillClient;
struct FormData;
// Per-tab Autocomplete history manager. Handles receiving form data
// from the renderer and the storing and retrieving of form data
// through WebDataServiceBase.
class AutocompleteHistoryManager : public WebDataServiceConsumer {
public:
AutocompleteHistoryManager(AutofillDriver* driver,
AutofillClient* autofill_client);
~AutocompleteHistoryManager() override;
// Pass-through functions that are called by AutofillManager, after it has
// dispatched a message.
virtual void OnGetAutocompleteSuggestions(
int query_id,
const base::string16& name,
const base::string16& prefix,
const std::string& form_control_type);
virtual void OnWillSubmitForm(const FormData& form);
// Cancels the currently pending WebDataService query, if there is one.
void CancelPendingQuery();
// Must be public for the external delegate to use.
void OnRemoveAutocompleteEntry(const base::string16& name,
const base::string16& value);
// Sets our external delegate.
void SetExternalDelegate(AutofillExternalDelegate* delegate);
protected:
friend class AutofillManagerTest;
// Sends the stored suggestions plus the new autocomplete results for display
// in the Autofill popup. The parameter may be null if there are no new
// autocomplete additions.
void SendSuggestions(const std::vector<base::string16>* new_results);
private:
// WebDataServiceConsumer implementation.
void OnWebDataServiceRequestDone(
WebDataServiceBase::Handle h,
std::unique_ptr<WDTypedResult> result) override;
// Provides driver-level context. Must outlive this object.
AutofillDriver* driver_;
scoped_refptr<AutofillWebDataService> database_;
// When the manager makes a request from WebDataServiceBase, the database is
// queried on another thread, we record the query handle until we get called
// back.
WebDataServiceBase::Handle pending_query_handle_;
int query_id_;
// Delegate to perform external processing (display, selection) on
// our behalf. Weak.
AutofillExternalDelegate* external_delegate_;
// Delegate to provide whether or not autocomplete functionality is enabled.
AutofillClient* const autofill_client_;
// Whether IPC is sent.
bool send_ipc_;
DISALLOW_COPY_AND_ASSIGN(AutocompleteHistoryManager);
};
} // namespace autofill
#endif // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOCOMPLETE_HISTORY_MANAGER_H_
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