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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_EXTENSIONS_EXTENSION_WARNING_SET_H_
#define CHROME_BROWSER_EXTENSIONS_EXTENSION_WARNING_SET_H_
#include <set>
#include <string>
#include "base/string16.h"
class ExtensionWarning;
class ExtensionGlobalErrorBadge;
class Profile;
// A set of warnings caused by extensions. These warnings (e.g. conflicting
// modifications of network requests by extensions, slow extensions, etc.)
// trigger a warning badge in the UI and and provide means to resolve them.
class ExtensionWarningSet {
public:
enum WarningType {
// Don't use this, it is only intended for the default constructor and
// does not have localized warning messages for the UI.
kInvalid = 0,
// An extension caused excessive network delays.
kNetworkDelay,
// This extension failed to modify a network request because the
// modification conflicted with a modification of another extension.
kNetworkConflict,
// The extension repeatedly flushed WebKit's in-memory cache, which slows
// down the overall performance.
kRepeatedCacheFlushes,
kMaxWarningType
};
// Returns a localized string describing |warning_type|.
static string16 GetLocalizedWarning(WarningType warning_type);
// |profile| may be NULL for testing. In this case, be sure to not insert
// any warnings.
explicit ExtensionWarningSet(Profile* profile);
virtual ~ExtensionWarningSet();
// Adds a warning and triggers a chrome::NOTIFICATION_EXTENSION_WARNING
// message if this warning is is new. If the warning is new and has not
// been suppressed, this may activate a badge on the wrench menu.
void SetWarning(ExtensionWarningSet::WarningType type,
const std::string& extension_id);
// Clears all warnings of types contained in |types| and triggers a
// chrome::NOTIFICATION_EXTENSION_WARNING message if such warnings existed.
// If no warning remains that is not suppressed, this may deactivate a
// warning badge on the wrench mennu.
void ClearWarnings(const std::set<WarningType>& types);
// Suppresses showing a badge for all currently existing warnings in the
// future.
void SuppressBadgeForCurrentWarnings();
// Stores all warnings for extension |extension_id| in |result|. The previous
// content of |result| is erased.
void GetWarningsAffectingExtension(
const std::string& extension_id,
std::set<WarningType>* result) const;
// Notifies the ExtensionWarningSet of profile |profile_id| that
// |extension_ids| caused warning |warning_type|. This function must only be
// called on the UI thread.
static void NotifyWarningsOnUI(void* profile_id,
std::set<std::string> extension_ids,
WarningType warning_type);
protected:
// Virtual for testing.
virtual void NotifyWarningsChanged();
private:
typedef std::set<ExtensionWarning>::const_iterator const_iterator;
typedef std::set<ExtensionWarning>::iterator iterator;
// Shows or hides the warning badge on the wrench menu depending on whether
// any non-suppressed warnings exist.
void UpdateWarningBadge();
// Currently existing warnings.
std::set<ExtensionWarning> warnings_;
// Warnings that do not trigger a badge on the wrench menu.
std::set<ExtensionWarning> badge_suppressions_;
Profile* profile_;
};
#endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_WARNING_SET_H_
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