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// 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_UI_WEBUI_POLICY_UI_H_
#define CHROME_BROWSER_UI_WEBUI_POLICY_UI_H_
#pragma once
#include "base/memory/scoped_ptr.h"
#include "base/values.h"
#include "chrome/browser/policy/cloud_policy_subsystem.h"
#include "chrome/browser/policy/configuration_policy_reader.h"
#include "chrome/browser/ui/webui/chrome_web_ui.h"
namespace policy {
class CloudPolicyDataStore;
}
// The base class handler of Javascript messages of the about:policy page.
class PolicyUIHandler : public WebUIMessageHandler,
public policy::PolicyStatus::Observer {
public:
PolicyUIHandler();
virtual ~PolicyUIHandler();
// WebUIMessageHandler implementation.
virtual void RegisterMessages() OVERRIDE;
// policy::PolicyStatus::Observer implementation.
virtual void OnPolicyValuesChanged() OVERRIDE;
private:
// Callback for the "requestData" message. The parameter |args| is unused.
void HandleRequestData(const ListValue* args);
// Callback for the "fetchPolicy" message. The parameter |args| is unused.
void HandleFetchPolicy(const ListValue* args);
// Send requested data to UI. |is_policy_update| should be set to true when
// policy data is pushed to the UI without having been requested by a
// javascript message and to false otherwise.
void SendDataToUI(bool is_policy_update);
// Returns a DictionaryValue pointer containing information about the status
// of the policy system. The caller acquires ownership of the returned
// DictionaryValue pointer.
DictionaryValue* GetStatusData();
// Returns the time at which policy was last fetched by the
// CloudPolicySubsystem |subsystem| in string form.
string16 GetLastFetchTime(policy::CloudPolicySubsystem* subsystem);
// Reads the device id from |data_store| and returns it as a string16.
string16 GetDeviceId(const policy::CloudPolicyDataStore* data_store);
// Reads the policy fetch interval from the preferences specified by
// |refresh_pref| and returns it as a string16.
string16 GetPolicyFetchInterval(const char* refresh_pref);
// Returns the string corresponding to the CloudPolicySubsystem::ErrorDetails
// enum value |error_details|.
static string16 CreateStatusMessageString(
policy::CloudPolicySubsystem::ErrorDetails error_details);
scoped_ptr<policy::PolicyStatus> policy_status_;
DISALLOW_COPY_AND_ASSIGN(PolicyUIHandler);
};
// The Web UI handler for about:policy.
class PolicyUI : public ChromeWebUI {
public:
explicit PolicyUI(TabContents* contents);
virtual ~PolicyUI();
private:
DISALLOW_COPY_AND_ASSIGN(PolicyUI);
};
#endif // CHROME_BROWSER_UI_WEBUI_POLICY_UI_H_
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