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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 COMPONENTS_WEBDATA_COMMON_WEB_DATA_RESULTS_H_
#define COMPONENTS_WEBDATA_COMMON_WEB_DATA_RESULTS_H_
#include "base/basictypes.h"
#include "base/callback.h"
#include "components/webdata/common/webdata_export.h"
class WDTypedResult;
//
// Result types for WebDataService.
//
typedef enum {
BOOL_RESULT = 1, // WDResult<bool>
KEYWORDS_RESULT, // WDResult<WDKeywordsResult>
INT64_RESULT, // WDResult<int64>
#if defined(OS_WIN)
PASSWORD_IE7_RESULT, // WDResult<IE7PasswordInfo>
#endif
WEB_APP_IMAGES, // WDResult<WDAppImagesResult>
TOKEN_RESULT, // WDResult<std::vector<std::string>>
AUTOFILL_VALUE_RESULT, // WDResult<std::vector<base::string16>>
AUTOFILL_CHANGES, // WDResult<std::vector<AutofillChange>>
AUTOFILL_PROFILE_RESULT, // WDResult<AutofillProfile>
AUTOFILL_PROFILES_RESULT, // WDResult<std::vector<AutofillProfile*>>
AUTOFILL_CREDITCARD_RESULT, // WDResult<CreditCard>
AUTOFILL_CREDITCARDS_RESULT, // WDResult<std::vector<CreditCard*>>
WEB_INTENTS_RESULT, // WDResult<std::vector<WebIntentServiceData>>
WEB_INTENTS_DEFAULTS_RESULT, // WDResult<std::vector<DefaultWebIntentService>>
} WDResultType;
typedef base::Callback<void(const WDTypedResult*)> DestroyCallback;
//
// The top level class for a result.
//
class WEBDATA_EXPORT WDTypedResult {
public:
virtual ~WDTypedResult() {
}
// Return the result type.
WDResultType GetType() const {
return type_;
}
virtual void Destroy() {
}
protected:
explicit WDTypedResult(WDResultType type)
: type_(type) {
}
private:
WDResultType type_;
DISALLOW_COPY_AND_ASSIGN(WDTypedResult);
};
// A result containing one specific pointer or literal value.
template <class T> class WDResult : public WDTypedResult {
public:
WDResult(WDResultType type, const T& v)
: WDTypedResult(type), value_(v) {
}
virtual ~WDResult() {
}
// Return a single value result.
T GetValue() const {
return value_;
}
private:
T value_;
DISALLOW_COPY_AND_ASSIGN(WDResult);
};
template <class T> class WDDestroyableResult : public WDTypedResult {
public:
WDDestroyableResult(
WDResultType type,
const T& v,
const DestroyCallback& callback)
: WDTypedResult(type),
value_(v),
callback_(callback) {
}
virtual ~WDDestroyableResult() {
}
virtual void Destroy() OVERRIDE {
if (!callback_.is_null()) {
callback_.Run(this);
}
}
// Return a single value result.
T GetValue() const {
return value_;
}
private:
T value_;
DestroyCallback callback_;
DISALLOW_COPY_AND_ASSIGN(WDDestroyableResult);
};
template <class T> class WDObjectResult : public WDTypedResult {
public:
explicit WDObjectResult(WDResultType type)
: WDTypedResult(type) {
}
T* GetValue() const {
return &value_;
}
private:
// mutable to keep GetValue() const.
mutable T value_;
DISALLOW_COPY_AND_ASSIGN(WDObjectResult);
};
#endif // COMPONENTS_WEBDATA_COMMON_WEB_DATA_RESULTS_H_
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