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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_TEST_AUTOMATION_VALUE_CONVERSION_UTIL_H_
#define CHROME_TEST_AUTOMATION_VALUE_CONVERSION_UTIL_H_
#include <string>
#include "base/values.h"
#include "chrome/test/automation/value_conversion_traits.h"
// Creates a value from the given parameter. Will not return NULL.
template <typename T>
base::Value* CreateValueFrom(const T& t) {
return ValueConversionTraits<T>::CreateValueFrom(t);
}
// Sets |t| from the given value. Returns true on success. |t| will not be
// modified unless successful.
template <typename T>
bool SetFromValue(const base::Value* value, T* t) {
return ValueConversionTraits<T>::SetFromValue(value, t);
}
// Creates a list value containing the converted value from the the given
// parameter.
template <typename T>
base::ListValue* CreateListValueFrom(const T& t) {
base::ListValue* list = new base::ListValue();
list->Append(CreateValueFrom(t));
return list;
}
// Same as above, but with more arguments.
template <typename T1, typename T2>
base::ListValue* CreateListValueFrom(const T1& t1, const T2& t2) {
base::ListValue* list = new base::ListValue();
list->Append(CreateValueFrom(t1));
list->Append(CreateValueFrom(t2));
return list;
}
// Same as above, but with more arguments.
template <typename T1, typename T2, typename T3>
base::ListValue* CreateListValueFrom(const T1& t1, const T2& t2, const T3& t3) {
base::ListValue* list = new base::ListValue();
list->Append(CreateValueFrom(t1));
list->Append(CreateValueFrom(t2));
list->Append(CreateValueFrom(t3));
return list;
}
// Sets |t| from the first element in the given list. Returns true on success.
// |t| will not be modified unless successful.
template <typename T>
bool SetFromListValue(const base::ListValue* list, T* t) {
if (list->GetSize() != 1)
return false;
if (!ValueConversionTraits<T>::CanConvert(*list->begin()))
return false;
CHECK(SetFromValue(*list->begin(), t));
return true;
}
// Same as above, but with more arguments.
template <typename T1, typename T2>
bool SetFromListValue(const base::ListValue* list, T1* t1, T2* t2) {
if (list->GetSize() != 2)
return false;
if (!ValueConversionTraits<T1>::CanConvert(*list->begin()))
return false;
if (!ValueConversionTraits<T2>::CanConvert(*(list->begin() + 1)))
return false;
CHECK(SetFromValue(*list->begin(), t1));
CHECK(SetFromValue(*(list->begin() + 1), t2));
return true;
}
// Same as above, but with more arguments.
template <typename T1, typename T2, typename T3>
bool SetFromListValue(const base::ListValue* list, T1* t1, T2* t2, T3* t3) {
if (list->GetSize() != 3)
return false;
if (!ValueConversionTraits<T1>::CanConvert(*list->begin()))
return false;
if (!ValueConversionTraits<T2>::CanConvert(*(list->begin() + 1)))
return false;
if (!ValueConversionTraits<T3>::CanConvert(*(list->begin() + 2)))
return false;
CHECK(SetFromValue(*list->begin(), t1));
CHECK(SetFromValue(*(list->begin() + 1), t2));
CHECK(SetFromValue(*(list->begin() + 2), t3));
return true;
}
#endif // CHROME_TEST_AUTOMATION_VALUE_CONVERSION_UTIL_H_
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