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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_UI_GLOBAL_ERROR_GLOBAL_ERROR_SERVICE_H_
#define CHROME_BROWSER_UI_GLOBAL_ERROR_GLOBAL_ERROR_SERVICE_H_
#include <vector>
#include "base/basictypes.h"
#include "components/browser_context_keyed_service/browser_context_keyed_service.h"
class GlobalError;
class Profile;
// This service manages a list of errors that are meant to be shown globally.
// If an error applies to an entire profile and not just to a tab then the
// error should be shown using this service. Examples of global errors are:
// - the previous session crashed for a given profile.
// - a sync error occurred
class GlobalErrorService : public ProfileKeyedService {
public:
// Type used to represent the list of currently active errors.
typedef std::vector<GlobalError*> GlobalErrorList;
// Constructs a GlobalErrorService object for the given profile. The profile
// maybe NULL for tests.
explicit GlobalErrorService(Profile* profile);
virtual ~GlobalErrorService();
// Adds the given error to the list of global errors and displays it on
// browswer windows. If no browser windows are open then the error is
// displayed once a browser window is opened. This class takes ownership of
// the error.
void AddGlobalError(GlobalError* error);
// Hides the given error and removes it from the list of global errors. Caller
// then takes ownership of the error and is responsible for deleting it.
void RemoveGlobalError(GlobalError* error);
// Gets the error with the given command ID or NULL if no such error exists.
// This class maintains ownership of the returned error.
GlobalError* GetGlobalErrorByMenuItemCommandID(int command_id) const;
// Gets the highest severity error that has a wrench menu item.
// Returns NULL if no such error exists.
GlobalError* GetHighestSeverityGlobalErrorWithWrenchMenuItem() const;
// Gets the first error that has a bubble view which hasn't been shown yet.
// Returns NULL if no such error exists.
GlobalError* GetFirstGlobalErrorWithBubbleView() const;
// Gets all errors.
const GlobalErrorList& errors() { return errors_; }
// Post a notification that a global error has changed and that the error UI
// should update it self. Pass NULL for the given error to mean all error UIs
// should update.
void NotifyErrorsChanged(GlobalError* error);
private:
GlobalErrorList errors_;
Profile* profile_;
DISALLOW_COPY_AND_ASSIGN(GlobalErrorService);
};
#endif // CHROME_BROWSER_UI_GLOBAL_ERROR_GLOBAL_ERROR_SERVICE_H_
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