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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef Values_h | |
| 6 #define Values_h | |
| 7 | |
| 8 #include "platform/inspector_protocol/Allocator.h" | |
| 9 #include "platform/inspector_protocol/Collections.h" | |
| 10 #include "platform/inspector_protocol/Platform.h" | |
| 11 #include "platform/inspector_protocol/String16.h" | |
| 12 | |
| 13 #include <vector> | |
| 14 | |
| 15 namespace blink { | |
| 16 namespace protocol { | |
| 17 | |
| 18 class ListValue; | |
| 19 class DictionaryValue; | |
| 20 class Value; | |
| 21 | |
| 22 class PLATFORM_EXPORT Value { | |
| 23 PROTOCOL_DISALLOW_COPY(Value); | |
| 24 public: | |
| 25 static const int maxDepth = 1000; | |
| 26 | |
| 27 virtual ~Value() { } | |
| 28 | |
| 29 static std::unique_ptr<Value> null() | |
| 30 { | |
| 31 return wrapUnique(new Value()); | |
| 32 } | |
| 33 | |
| 34 enum ValueType { | |
| 35 TypeNull = 0, | |
| 36 TypeBoolean, | |
| 37 TypeInteger, | |
| 38 TypeDouble, | |
| 39 TypeString, | |
| 40 TypeObject, | |
| 41 TypeArray, | |
| 42 TypeSerialized | |
| 43 }; | |
| 44 | |
| 45 ValueType type() const { return m_type; } | |
| 46 | |
| 47 bool isNull() const { return m_type == TypeNull; } | |
| 48 | |
| 49 virtual bool asBoolean(bool* output) const; | |
| 50 virtual bool asDouble(double* output) const; | |
| 51 virtual bool asInteger(int* output) const; | |
| 52 virtual bool asString(String16* output) const; | |
| 53 virtual bool asSerialized(String16* output) const; | |
| 54 | |
| 55 String16 toJSONString() const; | |
| 56 virtual void writeJSON(String16Builder* output) const; | |
| 57 virtual std::unique_ptr<Value> clone() const; | |
| 58 | |
| 59 protected: | |
| 60 Value() : m_type(TypeNull) { } | |
| 61 explicit Value(ValueType type) : m_type(type) { } | |
| 62 | |
| 63 private: | |
| 64 friend class DictionaryValue; | |
| 65 friend class ListValue; | |
| 66 | |
| 67 ValueType m_type; | |
| 68 }; | |
| 69 | |
| 70 class PLATFORM_EXPORT FundamentalValue : public Value { | |
| 71 public: | |
| 72 static std::unique_ptr<FundamentalValue> create(bool value) | |
| 73 { | |
| 74 return wrapUnique(new FundamentalValue(value)); | |
| 75 } | |
| 76 | |
| 77 static std::unique_ptr<FundamentalValue> create(int value) | |
| 78 { | |
| 79 return wrapUnique(new FundamentalValue(value)); | |
| 80 } | |
| 81 | |
| 82 static std::unique_ptr<FundamentalValue> create(double value) | |
| 83 { | |
| 84 return wrapUnique(new FundamentalValue(value)); | |
| 85 } | |
| 86 | |
| 87 bool asBoolean(bool* output) const override; | |
| 88 bool asDouble(double* output) const override; | |
| 89 bool asInteger(int* output) const override; | |
| 90 void writeJSON(String16Builder* output) const override; | |
| 91 std::unique_ptr<Value> clone() const override; | |
| 92 | |
| 93 private: | |
| 94 explicit FundamentalValue(bool value) : Value(TypeBoolean), m_boolValue(valu
e) { } | |
| 95 explicit FundamentalValue(int value) : Value(TypeInteger), m_integerValue(va
lue) { } | |
| 96 explicit FundamentalValue(double value) : Value(TypeDouble), m_doubleValue(v
alue) { } | |
| 97 | |
| 98 union { | |
| 99 bool m_boolValue; | |
| 100 double m_doubleValue; | |
| 101 int m_integerValue; | |
| 102 }; | |
| 103 }; | |
| 104 | |
| 105 class PLATFORM_EXPORT StringValue : public Value { | |
| 106 public: | |
| 107 static std::unique_ptr<StringValue> create(const String16& value) | |
| 108 { | |
| 109 return wrapUnique(new StringValue(value)); | |
| 110 } | |
| 111 | |
| 112 static std::unique_ptr<StringValue> create(const char* value) | |
| 113 { | |
| 114 return wrapUnique(new StringValue(value)); | |
| 115 } | |
| 116 | |
| 117 bool asString(String16* output) const override; | |
| 118 void writeJSON(String16Builder* output) const override; | |
| 119 std::unique_ptr<Value> clone() const override; | |
| 120 | |
| 121 private: | |
| 122 explicit StringValue(const String16& value) : Value(TypeString), m_stringVal
ue(value) { } | |
| 123 explicit StringValue(const char* value) : Value(TypeString), m_stringValue(v
alue) { } | |
| 124 | |
| 125 String16 m_stringValue; | |
| 126 }; | |
| 127 | |
| 128 class PLATFORM_EXPORT SerializedValue : public Value { | |
| 129 public: | |
| 130 static std::unique_ptr<SerializedValue> create(const String16& value) | |
| 131 { | |
| 132 return wrapUnique(new SerializedValue(value)); | |
| 133 } | |
| 134 | |
| 135 bool asSerialized(String16* output) const override; | |
| 136 void writeJSON(String16Builder* output) const override; | |
| 137 std::unique_ptr<Value> clone() const override; | |
| 138 | |
| 139 private: | |
| 140 explicit SerializedValue(const String16& value) : Value(TypeSerialized), m_s
erializedValue(value) { } | |
| 141 explicit SerializedValue(const char* value) : Value(TypeSerialized), m_seria
lizedValue(value) { } | |
| 142 | |
| 143 String16 m_serializedValue; | |
| 144 }; | |
| 145 | |
| 146 class PLATFORM_EXPORT DictionaryValue : public Value { | |
| 147 public: | |
| 148 using Entry = std::pair<String16, Value*>; | |
| 149 static std::unique_ptr<DictionaryValue> create() | |
| 150 { | |
| 151 return wrapUnique(new DictionaryValue()); | |
| 152 } | |
| 153 | |
| 154 static DictionaryValue* cast(Value* value) | |
| 155 { | |
| 156 if (!value || value->type() != TypeObject) | |
| 157 return nullptr; | |
| 158 return static_cast<DictionaryValue*>(value); | |
| 159 } | |
| 160 | |
| 161 static std::unique_ptr<DictionaryValue> cast(std::unique_ptr<Value> value) | |
| 162 { | |
| 163 return wrapUnique(DictionaryValue::cast(value.release())); | |
| 164 } | |
| 165 | |
| 166 void writeJSON(String16Builder* output) const override; | |
| 167 std::unique_ptr<Value> clone() const override; | |
| 168 | |
| 169 size_t size() const { return m_data.size(); } | |
| 170 | |
| 171 void setBoolean(const String16& name, bool); | |
| 172 void setInteger(const String16& name, int); | |
| 173 void setDouble(const String16& name, double); | |
| 174 void setString(const String16& name, const String16&); | |
| 175 void setValue(const String16& name, std::unique_ptr<Value>); | |
| 176 void setObject(const String16& name, std::unique_ptr<DictionaryValue>); | |
| 177 void setArray(const String16& name, std::unique_ptr<ListValue>); | |
| 178 | |
| 179 bool getBoolean(const String16& name, bool* output) const; | |
| 180 bool getInteger(const String16& name, int* output) const; | |
| 181 bool getDouble(const String16& name, double* output) const; | |
| 182 bool getString(const String16& name, String16* output) const; | |
| 183 | |
| 184 DictionaryValue* getObject(const String16& name) const; | |
| 185 ListValue* getArray(const String16& name) const; | |
| 186 Value* get(const String16& name) const; | |
| 187 Entry at(size_t index) const; | |
| 188 | |
| 189 bool booleanProperty(const String16& name, bool defaultValue) const; | |
| 190 int integerProperty(const String16& name, int defaultValue) const; | |
| 191 double doubleProperty(const String16& name, double defaultValue) const; | |
| 192 void remove(const String16& name); | |
| 193 | |
| 194 ~DictionaryValue() override; | |
| 195 | |
| 196 private: | |
| 197 DictionaryValue(); | |
| 198 template<typename T> | |
| 199 void set(const String16& key, std::unique_ptr<T>& value) | |
| 200 { | |
| 201 DCHECK(value); | |
| 202 bool isNew = m_data.find(key) == m_data.end(); | |
| 203 m_data[key] = std::move(value); | |
| 204 if (isNew) | |
| 205 m_order.push_back(key); | |
| 206 } | |
| 207 | |
| 208 using Dictionary = protocol::HashMap<String16, std::unique_ptr<Value>>; | |
| 209 Dictionary m_data; | |
| 210 std::vector<String16> m_order; | |
| 211 }; | |
| 212 | |
| 213 class PLATFORM_EXPORT ListValue : public Value { | |
| 214 public: | |
| 215 static std::unique_ptr<ListValue> create() | |
| 216 { | |
| 217 return wrapUnique(new ListValue()); | |
| 218 } | |
| 219 | |
| 220 static ListValue* cast(Value* value) | |
| 221 { | |
| 222 if (!value || value->type() != TypeArray) | |
| 223 return nullptr; | |
| 224 return static_cast<ListValue*>(value); | |
| 225 } | |
| 226 | |
| 227 static std::unique_ptr<ListValue> cast(std::unique_ptr<Value> value) | |
| 228 { | |
| 229 return wrapUnique(ListValue::cast(value.release())); | |
| 230 } | |
| 231 | |
| 232 ~ListValue() override; | |
| 233 | |
| 234 void writeJSON(String16Builder* output) const override; | |
| 235 std::unique_ptr<Value> clone() const override; | |
| 236 | |
| 237 void pushValue(std::unique_ptr<Value>); | |
| 238 | |
| 239 Value* at(size_t index); | |
| 240 size_t size() const { return m_data.size(); } | |
| 241 | |
| 242 private: | |
| 243 ListValue(); | |
| 244 std::vector<std::unique_ptr<Value>> m_data; | |
| 245 }; | |
| 246 | |
| 247 } // namespace protocol | |
| 248 } // namespace blink | |
| 249 | |
| 250 #endif // Values_h | |
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