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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_EXTENSIONS_EXTENSION_WARNING_SET_H_
+#define CHROME_BROWSER_EXTENSIONS_EXTENSION_WARNING_SET_H_
+#pragma once
+
+#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,
+ 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;
+
+ protected:
+ // Virtual for testing.
+ virtual void NotifyWarningsChanged();
+ virtual void ActivateBadge();
+ virtual void DeactivateBadge();
+
+ // Tracks the currently existing ExtensionGlobalErrorBadge that indicates in
+ // the UI that there are |extension_warnings_|. Weak pointer as the object is
+ // owned by the GlobalErrorService. NULL if there is no warning to be
+ // displayed on the wrench menu currently.
+ ExtensionGlobalErrorBadge* extension_global_error_badge_;
+
+ private:
+ typedef std::set<ExtensionWarning>::const_iterator const_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_