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/*
* Copyright (C) 2010, 2011, 2012 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef WebPreferencesStore_h
#define WebPreferencesStore_h
#include "ArgumentDecoder.h"
#include "ArgumentEncoder.h"
#include <wtf/HashMap.h>
#include <wtf/text/StringHash.h>
#include <wtf/text/WTFString.h>
namespace WebKit {
struct WebPreferencesStore {
WebPreferencesStore();
void encode(IPC::ArgumentEncoder&) const;
static bool decode(IPC::ArgumentDecoder&, WebPreferencesStore&);
// NOTE: The getters in this class have non-standard names to aid in the use of the preference macros.
bool setStringValueForKey(const String& key, const String& value);
String getStringValueForKey(const String& key) const;
bool setBoolValueForKey(const String& key, bool value);
bool getBoolValueForKey(const String& key) const;
bool setUInt32ValueForKey(const String& key, uint32_t value);
uint32_t getUInt32ValueForKey(const String& key) const;
bool setDoubleValueForKey(const String& key, double value);
double getDoubleValueForKey(const String& key) const;
void setOverrideDefaultsStringValueForKey(const String& key, String value);
void setOverrideDefaultsBoolValueForKey(const String& key, bool value);
void setOverrideDefaultsUInt32ValueForKey(const String& key, uint32_t value);
void setOverrideDefaultsDoubleValueForKey(const String& key, double value);
// For WebKitTestRunner usage.
static void overrideBoolValueForKey(const String& key, bool value);
static void removeTestRunnerOverrides();
struct Value {
enum class Type {
None,
String,
Bool,
UInt32,
Double,
};
void encode(IPC::ArgumentEncoder&) const;
static bool decode(IPC::ArgumentDecoder&, Value&);
explicit Value() : m_type(Type::None) { }
explicit Value(const String& value) : m_type(Type::String), m_string(value) { }
explicit Value(bool value) : m_type(Type::Bool), m_bool(value) { }
explicit Value(uint32_t value) : m_type(Type::UInt32), m_uint32(value) { }
explicit Value(double value) : m_type(Type::Double), m_double(value) { }
Value(Value&& value)
: m_type(value.m_type)
{
switch (m_type) {
case Type::None:
break;
case Type::String:
new (&m_string) String(WTF::move(value.m_string));
break;
case Type::Bool:
m_bool = value.m_bool;
break;
case Type::UInt32:
m_uint32 = value.m_uint32;
break;
case Type::Double:
m_double = value.m_double;
break;
}
}
Value& operator=(const Value& other)
{
if (this == &other)
return *this;
destroy();
m_type = other.m_type;
switch (m_type) {
case Type::None:
break;
case Type::String:
new (&m_string) String(other.m_string);
break;
case Type::Bool:
m_bool = other.m_bool;
break;
case Type::UInt32:
m_uint32 = other.m_uint32;
break;
case Type::Double:
m_double = other.m_double;
break;
}
return *this;
}
~Value()
{
destroy();
}
Type type() const { return m_type; }
String asString() const
{
ASSERT(m_type == Type::String);
return m_string;
}
bool asBool() const
{
ASSERT(m_type == Type::Bool);
return m_bool;
}
uint32_t asUInt32() const
{
ASSERT(m_type == Type::UInt32);
return m_uint32;
}
double asDouble() const
{
ASSERT(m_type == Type::Double);
return m_double;
}
private:
void destroy()
{
if (m_type == Type::String)
m_string.~String();
}
Type m_type;
union {
String m_string;
bool m_bool;
uint32_t m_uint32;
double m_double;
};
};
typedef HashMap<String, Value> ValueMap;
ValueMap m_values;
ValueMap m_overridenDefaults;
};
} // namespace WebKit
#endif // WebPreferencesStore_h
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