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// Copyright (c) 2009 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_PREFS_H_
#define CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFS_H_
#include <set>
#include <string>
#include <vector>
#include "base/linked_ptr.h"
#include "base/task.h"
#include "chrome/common/extensions/extension.h"
#include "chrome/common/pref_service.h"
#include "googleurl/src/gurl.h"
// Class for managing global and per-extension preferences.
// This class is instantiated by ExtensionsService, so it should be accessed
// from there.
class ExtensionPrefs {
public:
typedef std::vector<linked_ptr<ExtensionInfo> > ExtensionsInfo;
explicit ExtensionPrefs(PrefService* prefs, const FilePath& root_dir_);
// Returns a copy of the Extensions prefs.
// TODO(erikkay) Remove this so that external consumers don't need to be
// aware of the internal structure of the preferences.
DictionaryValue* CopyCurrentExtensions();
// Populate |killed_ids| with extension ids that have been killed.
void GetKilledExtensionIds(std::set<std::string>* killed_ids);
// Get the order that toolstrip URLs appear in the shelf.
typedef std::vector<GURL> URLList;
URLList GetShelfToolstripOrder();
// Sets the order that toolstrip URLs appear in the shelf.
void SetShelfToolstripOrder(const URLList& urls);
// Get the order that the browser actions appear in the toolbar.
std::vector<std::string> GetToolbarOrder();
// Set the order that the browser actions appear in the toolbar.
void SetToolbarOrder(const std::vector<std::string>& extension_ids);
// Called when an extension is installed, so that prefs get created.
void OnExtensionInstalled(Extension* extension);
// Called when an extension is uninstalled, so that prefs get cleaned up.
void OnExtensionUninstalled(const Extension* extension,
bool external_uninstall);
// Returns the state (enabled/disabled) of the given extension.
Extension::State GetExtensionState(const std::string& extension_id);
// Called to change the extension's state when it is enabled/disabled.
void SetExtensionState(Extension* extension, Extension::State);
// Returns the version string for the currently installed extension, or
// the empty string if not found.
std::string GetVersionString(const std::string& extension_id);
// Re-writes the extension manifest into the prefs.
// Called to change the extension's manifest when it's re-localized.
void UpdateManifest(Extension* extension);
// Returns extension path based on extension ID, or empty FilePath on error.
FilePath GetExtensionPath(const std::string& extension_id);
// Returns base extensions install directory.
const FilePath& install_directory() const { return install_directory_; }
// Updates the prefs based on the blacklist.
void UpdateBlacklist(const std::set<std::string>& blacklist_set);
// Based on extension id, checks prefs to see if it is blacklisted.
bool IsExtensionBlacklisted(const std::string& id);
// Saves ExtensionInfo for each installed extension with the path to the
// version directory and the location. Blacklisted extensions won't be saved
// and neither will external extensions the user has explicitly uninstalled.
// Caller takes ownership of returned structure.
static ExtensionsInfo* CollectExtensionsInfo(ExtensionPrefs* extension_prefs);
private:
// Converts absolute paths in the pref to paths relative to the
// install_directory_.
void MakePathsRelative();
// Converts internal relative paths to be absolute. Used for export to
// consumers who expect full paths.
void MakePathsAbsolute(DictionaryValue* dict);
// Sets the pref |key| for extension |id| to |value|.
void UpdateExtensionPref(const std::string& id,
const std::wstring& key,
Value* value);
// Deletes the pref dictionary for extension |id|.
void DeleteExtensionPrefs(const std::string& id);
// Ensures and returns a mutable dictionary for extension |id|'s prefs.
DictionaryValue* GetOrCreateExtensionPref(const std::string& id);
// Same as above, but returns NULL if it doesn't exist.
DictionaryValue* GetExtensionPref(const std::string& id);
// Checks if kPrefBlacklist is set to true in the DictionaryValue.
// Return false if the value is false or kPrefBlacklist does not exist.
// This is used to decide if an extension is blacklisted.
bool IsBlacklistBitSet(DictionaryValue* ext);
// The pref service specific to this set of extension prefs.
PrefService* prefs_;
// Base extensions install directory.
FilePath install_directory_;
// The URLs of all of the toolstrips.
URLList shelf_order_;
DISALLOW_COPY_AND_ASSIGN(ExtensionPrefs);
};
#endif // CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFS_H_
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