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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_INSTALLER_UTIL_CHANNEL_INFO_H_
#define CHROME_INSTALLER_UTIL_CHANNEL_INFO_H_
#include <string>
namespace base {
namespace win {
class RegKey;
}
}
namespace installer {
// A helper class for parsing and modifying the Google Update additional
// parameter ("ap") client state value for a product.
class ChannelInfo {
public:
// Initialize an instance from the "ap" value in a given registry key.
// Returns false if the value is present but could not be read from the
// registry. Returns true if the value was not present or could be read.
// Also returns true if the key is not valid.
// An absent "ap" value is treated identically to an empty "ap" value.
bool Initialize(const base::win::RegKey& key);
// Writes the info to the "ap" value in a given registry key.
// Returns false if the value could not be written to the registry.
bool Write(base::win::RegKey* key) const;
const std::wstring& value() const { return value_; }
void set_value(const std::wstring& value) { value_ = value; }
bool Equals(const ChannelInfo& other) const {
return value_ == other.value_;
}
// Determines the update channel for the value. Possible |channel_name|
// results are the empty string (stable channel), "beta", and "dev". Returns
// false (without modifying |channel_name|) if the channel could not be
// determined.
bool GetChannelName(std::wstring* channel_name) const;
// Returns true if the -chrome modifier is present in the value.
bool IsChrome() const;
// Adds or removes the -chrome modifier, returning true if the value is
// modified.
bool SetChrome(bool value);
// Returns true if the -chromeframe modifier is present in the value.
bool IsChromeFrame() const;
// Adds or removes the -chromeframe modifier, returning true if the value is
// modified.
bool SetChromeFrame(bool value);
// Returns true if the -apphost modifier is present in the value.
bool IsAppHost() const;
// Adds or removes the -apphost modifier, returning true if the value is
// modified.
bool SetAppHost(bool value);
// Returns true if the -multi modifier is present in the value.
bool IsMultiInstall() const;
// Adds or removes the -multi modifier, returning true if the value is
// modified.
bool SetMultiInstall(bool value);
// Returns true if the -readymode modifier is present in the value.
bool IsReadyMode() const;
// Adds or removes the -readymode modifier, returning true if the value is
// modified.
bool SetReadyMode(bool value);
// Adds the -stage: modifier with the given string (if |stage| is non-NULL) or
// removes the -stage: modifier (otherwise), returning true if the value is
// modified.
bool SetStage(const wchar_t* stage);
// Returns the string identifying the current stage, or an empty string if the
// -stage: modifier is not present in the value.
std::wstring GetStage() const;
// Returns true if the -full suffix is present in the value.
bool HasFullSuffix() const;
// Adds or removes the -full suffix, returning true if the value is
// modified.
bool SetFullSuffix(bool value);
// Returns true if the -multifail suffix is present in the value.
bool HasMultiFailSuffix() const;
// Adds or removes the -multifail suffix, returning true if the value is
// modified.
bool SetMultiFailSuffix(bool value);
private:
std::wstring value_;
}; // class ChannelInfo
} // namespace installer
#endif // CHROME_INSTALLER_UTIL_CHANNEL_INFO_H_
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