Move history extension API implementation to history dir.

chrome/browser/extensions/extension_history_api.h

-// 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.
-
-#ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_HISTORY_API_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_HISTORY_API_H_
-#pragma once
-
-#include <string>
-
-#include "base/compiler_specific.h"
-#include "chrome/browser/extensions/extension_function.h"
-#include "chrome/browser/history/history.h"
-#include "chrome/browser/history/history_notifications.h"
-#include "content/public/browser/notification_registrar.h"
-
-// Observes History service and routes the notifications as events to the
-// extension system.
-class ExtensionHistoryEventRouter : public content::NotificationObserver {
- public:
-  explicit ExtensionHistoryEventRouter();
-  virtual ~ExtensionHistoryEventRouter();
-
-  void ObserveProfile(Profile* profile);
-
- private:
-  // content::NotificationObserver::Observe.
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
-  void HistoryUrlVisited(Profile* profile,
-                         const history::URLVisitedDetails* details);
-
-  void HistoryUrlsRemoved(Profile* profile,
-                          const history::URLsDeletedDetails* details);
-
-  void DispatchEvent(Profile* profile,
-                     const char* event_name,
-                     const std::string& json_args);
-
-  // Used for tracking registrations to history service notifications.
-  content::NotificationRegistrar registrar_;
-
-  DISALLOW_COPY_AND_ASSIGN(ExtensionHistoryEventRouter);
-};
-
-
-// Base class for history function APIs.
-class HistoryFunction : public AsyncExtensionFunction {
- public:
-  virtual void Run() OVERRIDE;
-  virtual bool RunImpl() = 0;
-
-  bool GetUrlFromValue(base::Value* value, GURL* url);
-  bool GetTimeFromValue(base::Value* value, base::Time* time);
-};
-
-// Base class for history funciton APIs which require async interaction with
-// chrome services and the extension thread.
-class HistoryFunctionWithCallback : public HistoryFunction {
- public:
-  HistoryFunctionWithCallback();
-  virtual ~HistoryFunctionWithCallback();
-
-  // Return true if the async call was completed, false otherwise.
-  virtual bool RunAsyncImpl() = 0;
-
-  // Call this method to report the results of the async method to the caller.
-  // This method calls Release().
-  virtual void SendAsyncResponse();
-
-  // Override HistoryFunction::RunImpl.
-  virtual bool RunImpl() OVERRIDE;
-
- protected:
-  // The consumer for the HistoryService callbacks.
-  CancelableRequestConsumer cancelable_consumer_;
-
- private:
-  // The actual call to SendResponse.  This is required since the semantics for
-  // CancelableRequestConsumerT require it to be accessed after the call.
-  void SendResponseToCallback();
-};
-
-class GetVisitsHistoryFunction : public HistoryFunctionWithCallback {
- public:
-  // Override HistoryFunction.
-  virtual bool RunAsyncImpl() OVERRIDE;
-  DECLARE_EXTENSION_FUNCTION_NAME("history.getVisits");
-
-  // Callback for the history function to provide results.
-  void QueryComplete(HistoryService::Handle request_service,
-                     bool success,
-                     const history::URLRow* url_row,
-                     history::VisitVector* visits);
-};
-
-class SearchHistoryFunction : public HistoryFunctionWithCallback {
- public:
-  virtual bool RunAsyncImpl() OVERRIDE;
-  DECLARE_EXTENSION_FUNCTION_NAME("history.search");
-
-  // Callback for the history function to provide results.
-  void SearchComplete(HistoryService::Handle request_handle,
-                      history::QueryResults* results);
-};
-
-class AddUrlHistoryFunction : public HistoryFunction {
- public:
-  virtual bool RunImpl() OVERRIDE;
-  DECLARE_EXTENSION_FUNCTION_NAME("history.addUrl");
-};
-
-class DeleteAllHistoryFunction : public HistoryFunctionWithCallback {
- public:
-  virtual bool RunAsyncImpl() OVERRIDE;
-  DECLARE_EXTENSION_FUNCTION_NAME("history.deleteAll");
-
-  // Callback for the history service to acknowledge deletion.
-  void DeleteComplete();
-};
-
-
-class DeleteUrlHistoryFunction : public HistoryFunction {
- public:
-  virtual bool RunImpl() OVERRIDE;
-  DECLARE_EXTENSION_FUNCTION_NAME("history.deleteUrl");
-};
-
-class DeleteRangeHistoryFunction : public HistoryFunctionWithCallback {
- public:
-  virtual bool RunAsyncImpl() OVERRIDE;
-  DECLARE_EXTENSION_FUNCTION_NAME("history.deleteRange");
-
-  // Callback for the history service to acknowledge deletion.
-  void DeleteComplete();
-};
-
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_HISTORY_API_H_