cef/libcef/common/values_impl.cc

817 lines
22 KiB
C++

// Copyright (c) 2012 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that
// can be found in the LICENSE file.
#include "libcef/common/values_impl.h"
#include <algorithm>
#include <vector>
// CefBinaryValueImpl implementation.
CefRefPtr<CefBinaryValue> CefBinaryValue::Create(const void* data,
size_t data_size) {
DCHECK(data);
DCHECK_GT(data_size, (size_t)0);
if (!data || data_size == 0)
return NULL;
return new CefBinaryValueImpl(static_cast<char*>(const_cast<void*>(data)),
data_size, true);
}
// static
CefRefPtr<CefBinaryValue> CefBinaryValueImpl::GetOrCreateRef(
base::BinaryValue* value,
void* parent_value,
CefValueController* controller) {
DCHECK(value);
DCHECK(parent_value);
DCHECK(controller);
CefValueController::Object* object = controller->Get(value);
if (object)
return static_cast<CefBinaryValueImpl*>(object);
return new CefBinaryValueImpl(value, parent_value,
CefBinaryValueImpl::kReference, controller);
}
base::BinaryValue* CefBinaryValueImpl::CopyValue() {
CEF_VALUE_VERIFY_RETURN(false, NULL);
return const_value().DeepCopy();
}
base::BinaryValue* CefBinaryValueImpl::CopyOrDetachValue(
CefValueController* new_controller) {
base::BinaryValue* new_value;
if (!will_delete()) {
// Copy the value.
new_value = CopyValue();
} else {
// Take ownership of the value.
new_value = Detach(new_controller);
}
DCHECK(new_value);
return new_value;
}
bool CefBinaryValueImpl::IsValid() {
return !detached();
}
bool CefBinaryValueImpl::IsOwned() {
return !will_delete();
}
CefRefPtr<CefBinaryValue> CefBinaryValueImpl::Copy() {
CEF_VALUE_VERIFY_RETURN(false, NULL);
return new CefBinaryValueImpl(const_value().DeepCopy(), NULL,
CefBinaryValueImpl::kOwnerWillDelete, NULL);
}
size_t CefBinaryValueImpl::GetSize() {
CEF_VALUE_VERIFY_RETURN(false, 0);
return const_value().GetSize();
}
size_t CefBinaryValueImpl::GetData(void* buffer,
size_t buffer_size,
size_t data_offset) {
DCHECK(buffer);
DCHECK_GT(buffer_size, (size_t)0);
if (!buffer || buffer_size == 0)
return 0;
CEF_VALUE_VERIFY_RETURN(false, 0);
size_t size = const_value().GetSize();
DCHECK_LT(data_offset, size);
if (data_offset >= size)
return 0;
size = std::min(buffer_size, size-data_offset);
const char* data = const_value().GetBuffer();
memcpy(buffer, data+data_offset, size);
return size;
}
CefBinaryValueImpl::CefBinaryValueImpl(base::BinaryValue* value,
void* parent_value,
ValueMode value_mode,
CefValueController* controller)
: CefValueBase<CefBinaryValue, base::BinaryValue>(
value, parent_value, value_mode, true, controller) {
}
CefBinaryValueImpl::CefBinaryValueImpl(char* data,
size_t data_size,
bool copy)
: CefValueBase<CefBinaryValue, base::BinaryValue>(
copy ? base::BinaryValue::CreateWithCopiedBuffer(data, data_size) :
base::BinaryValue::Create(data, data_size),
NULL, kOwnerWillDelete, true, NULL) {
}
// CefDictionaryValueImpl implementation.
// static
CefRefPtr<CefDictionaryValue> CefDictionaryValue::Create() {
return new CefDictionaryValueImpl(new base::DictionaryValue(),
NULL, CefDictionaryValueImpl::kOwnerWillDelete, false, NULL);
}
// static
CefRefPtr<CefDictionaryValue> CefDictionaryValueImpl::GetOrCreateRef(
base::DictionaryValue* value,
void* parent_value,
bool read_only,
CefValueController* controller) {
CefValueController::Object* object = controller->Get(value);
if (object)
return static_cast<CefDictionaryValueImpl*>(object);
return new CefDictionaryValueImpl(value, parent_value,
CefDictionaryValueImpl::kReference, read_only, controller);
}
base::DictionaryValue* CefDictionaryValueImpl::CopyValue() {
CEF_VALUE_VERIFY_RETURN(false, NULL);
return const_value().DeepCopy();
}
base::DictionaryValue* CefDictionaryValueImpl::CopyOrDetachValue(
CefValueController* new_controller) {
base::DictionaryValue* new_value;
if (!will_delete()) {
// Copy the value.
new_value = CopyValue();
} else {
// Take ownership of the value.
new_value = Detach(new_controller);
}
DCHECK(new_value);
return new_value;
}
bool CefDictionaryValueImpl::IsValid() {
return !detached();
}
bool CefDictionaryValueImpl::IsOwned() {
return !will_delete();
}
bool CefDictionaryValueImpl::IsReadOnly() {
return read_only();
}
CefRefPtr<CefDictionaryValue> CefDictionaryValueImpl::Copy(
bool exclude_empty_children) {
CEF_VALUE_VERIFY_RETURN(false, NULL);
base::DictionaryValue* value;
if (exclude_empty_children) {
value = const_cast<base::DictionaryValue&>(
const_value()).DeepCopyWithoutEmptyChildren();
} else {
value = const_value().DeepCopy();
}
return new CefDictionaryValueImpl(value, NULL,
CefDictionaryValueImpl::kOwnerWillDelete, false, NULL);
}
size_t CefDictionaryValueImpl::GetSize() {
CEF_VALUE_VERIFY_RETURN(false, 0);
return const_value().size();
}
bool CefDictionaryValueImpl::Clear() {
CEF_VALUE_VERIFY_RETURN(true, false);
// Detach any dependent values.
controller()->RemoveDependencies(mutable_value());
mutable_value()->Clear();
return true;
}
bool CefDictionaryValueImpl::HasKey(const CefString& key) {
CEF_VALUE_VERIFY_RETURN(false, 0);
return const_value().HasKey(key);
}
bool CefDictionaryValueImpl::GetKeys(KeyList& keys) {
CEF_VALUE_VERIFY_RETURN(false, 0);
base::DictionaryValue::key_iterator it = const_value().begin_keys();
for (; it != const_value().end_keys(); ++it)
keys.push_back(*it);
return true;
}
bool CefDictionaryValueImpl::Remove(const CefString& key) {
CEF_VALUE_VERIFY_RETURN(true, false);
return RemoveInternal(key);
}
CefValueType CefDictionaryValueImpl::GetType(const CefString& key) {
CEF_VALUE_VERIFY_RETURN(false, VTYPE_INVALID);
const base::Value* out_value = NULL;
if (const_value().GetWithoutPathExpansion(key, &out_value)) {
switch (out_value->GetType()) {
case base::Value::TYPE_NULL:
return VTYPE_NULL;
case base::Value::TYPE_BOOLEAN:
return VTYPE_BOOL;
case base::Value::TYPE_INTEGER:
return VTYPE_INT;
case base::Value::TYPE_DOUBLE:
return VTYPE_DOUBLE;
case base::Value::TYPE_STRING:
return VTYPE_STRING;
case base::Value::TYPE_BINARY:
return VTYPE_BINARY;
case base::Value::TYPE_DICTIONARY:
return VTYPE_DICTIONARY;
case base::Value::TYPE_LIST:
return VTYPE_LIST;
}
}
return VTYPE_INVALID;
}
bool CefDictionaryValueImpl::GetBool(const CefString& key) {
CEF_VALUE_VERIFY_RETURN(false, false);
const base::Value* out_value = NULL;
bool ret_value = false;
if (const_value().GetWithoutPathExpansion(key, &out_value))
out_value->GetAsBoolean(&ret_value);
return ret_value;
}
int CefDictionaryValueImpl::GetInt(const CefString& key) {
CEF_VALUE_VERIFY_RETURN(false, 0);
const base::Value* out_value = NULL;
int ret_value = 0;
if (const_value().GetWithoutPathExpansion(key, &out_value))
out_value->GetAsInteger(&ret_value);
return ret_value;
}
double CefDictionaryValueImpl::GetDouble(const CefString& key) {
CEF_VALUE_VERIFY_RETURN(false, 0);
const base::Value* out_value = NULL;
double ret_value = 0;
if (const_value().GetWithoutPathExpansion(key, &out_value))
out_value->GetAsDouble(&ret_value);
return ret_value;
}
CefString CefDictionaryValueImpl::GetString(const CefString& key) {
CEF_VALUE_VERIFY_RETURN(false, CefString());
const base::Value* out_value = NULL;
std::string ret_value;
if (const_value().GetWithoutPathExpansion(key, &out_value))
out_value->GetAsString(&ret_value);
return ret_value;
}
CefRefPtr<CefBinaryValue> CefDictionaryValueImpl::GetBinary(
const CefString& key) {
CEF_VALUE_VERIFY_RETURN(false, NULL);
const base::Value* out_value = NULL;
if (const_value().GetWithoutPathExpansion(key, &out_value) &&
out_value->IsType(base::Value::TYPE_BINARY)) {
base::BinaryValue* binary_value =
static_cast<base::BinaryValue*>(const_cast<base::Value*>(out_value));
return CefBinaryValueImpl::GetOrCreateRef(binary_value,
const_cast<base::DictionaryValue*>(&const_value()), controller());
}
return NULL;
}
CefRefPtr<CefDictionaryValue> CefDictionaryValueImpl::GetDictionary(
const CefString& key) {
CEF_VALUE_VERIFY_RETURN(false, NULL);
const base::Value* out_value = NULL;
if (const_value().GetWithoutPathExpansion(key, &out_value) &&
out_value->IsType(base::Value::TYPE_DICTIONARY)) {
base::DictionaryValue* dict_value =
static_cast<base::DictionaryValue*>(
const_cast<base::Value*>(out_value));
return CefDictionaryValueImpl::GetOrCreateRef(
dict_value,
const_cast<base::DictionaryValue*>(&const_value()),
read_only(),
controller());
}
return NULL;
}
CefRefPtr<CefListValue> CefDictionaryValueImpl::GetList(const CefString& key) {
CEF_VALUE_VERIFY_RETURN(false, NULL);
const base::Value* out_value = NULL;
if (const_value().GetWithoutPathExpansion(key, &out_value) &&
out_value->IsType(base::Value::TYPE_LIST)) {
base::ListValue* list_value =
static_cast<base::ListValue*>(const_cast<base::Value*>(out_value));
return CefListValueImpl::GetOrCreateRef(
list_value,
const_cast<base::DictionaryValue*>(&const_value()),
read_only(),
controller());
}
return NULL;
}
bool CefDictionaryValueImpl::SetNull(const CefString& key) {
CEF_VALUE_VERIFY_RETURN(true, false);
RemoveInternal(key);
mutable_value()->SetWithoutPathExpansion(key, base::Value::CreateNullValue());
return true;
}
bool CefDictionaryValueImpl::SetBool(const CefString& key, bool value) {
CEF_VALUE_VERIFY_RETURN(true, false);
RemoveInternal(key);
mutable_value()->SetWithoutPathExpansion(key,
base::Value::CreateBooleanValue(value));
return true;
}
bool CefDictionaryValueImpl::SetInt(const CefString& key, int value) {
CEF_VALUE_VERIFY_RETURN(true, false);
RemoveInternal(key);
mutable_value()->SetWithoutPathExpansion(key,
base::Value::CreateIntegerValue(value));
return true;
}
bool CefDictionaryValueImpl::SetDouble(const CefString& key, double value) {
CEF_VALUE_VERIFY_RETURN(true, false);
RemoveInternal(key);
mutable_value()->SetWithoutPathExpansion(key,
base::Value::CreateDoubleValue(value));
return true;
}
bool CefDictionaryValueImpl::SetString(const CefString& key,
const CefString& value) {
CEF_VALUE_VERIFY_RETURN(true, false);
RemoveInternal(key);
mutable_value()->SetWithoutPathExpansion(key,
base::Value::CreateStringValue(value.ToString()));
return true;
}
bool CefDictionaryValueImpl::SetBinary(const CefString& key,
CefRefPtr<CefBinaryValue> value) {
CEF_VALUE_VERIFY_RETURN(true, false);
RemoveInternal(key);
CefBinaryValueImpl* impl = static_cast<CefBinaryValueImpl*>(value.get());
DCHECK(impl);
mutable_value()->SetWithoutPathExpansion(key,
impl->CopyOrDetachValue(controller()));
return true;
}
bool CefDictionaryValueImpl::SetDictionary(
const CefString& key, CefRefPtr<CefDictionaryValue> value) {
CEF_VALUE_VERIFY_RETURN(true, false);
RemoveInternal(key);
CefDictionaryValueImpl* impl =
static_cast<CefDictionaryValueImpl*>(value.get());
DCHECK(impl);
mutable_value()->SetWithoutPathExpansion(key,
impl->CopyOrDetachValue(controller()));
return true;
}
bool CefDictionaryValueImpl::SetList(const CefString& key,
CefRefPtr<CefListValue> value) {
CEF_VALUE_VERIFY_RETURN(true, false);
RemoveInternal(key);
CefListValueImpl* impl = static_cast<CefListValueImpl*>(value.get());
DCHECK(impl);
mutable_value()->SetWithoutPathExpansion(key,
impl->CopyOrDetachValue(controller()));
return true;
}
bool CefDictionaryValueImpl::RemoveInternal(const CefString& key) {
base::Value* out_value = NULL;
if (!mutable_value()->RemoveWithoutPathExpansion(key, &out_value))
return false;
// Remove the value.
controller()->Remove(out_value, true);
// Only list and dictionary types may have dependencies.
if (out_value->IsType(base::Value::TYPE_LIST) ||
out_value->IsType(base::Value::TYPE_DICTIONARY)) {
controller()->RemoveDependencies(out_value);
}
delete out_value;
return true;
}
CefDictionaryValueImpl::CefDictionaryValueImpl(
base::DictionaryValue* value,
void* parent_value,
ValueMode value_mode,
bool read_only,
CefValueController* controller)
: CefValueBase<CefDictionaryValue, base::DictionaryValue>(
value, parent_value, value_mode, read_only, controller) {
}
// CefListValueImpl implementation.
// static
CefRefPtr<CefListValue> CefListValue::Create() {
return new CefListValueImpl(new base::ListValue(),
NULL, CefListValueImpl::kOwnerWillDelete, false, NULL);
}
// static
CefRefPtr<CefListValue> CefListValueImpl::GetOrCreateRef(
base::ListValue* value,
void* parent_value,
bool read_only,
CefValueController* controller) {
CefValueController::Object* object = controller->Get(value);
if (object)
return static_cast<CefListValueImpl*>(object);
return new CefListValueImpl(value, parent_value,
CefListValueImpl::kReference, read_only, controller);
}
base::ListValue* CefListValueImpl::CopyValue() {
CEF_VALUE_VERIFY_RETURN(false, NULL);
return const_value().DeepCopy();
}
base::ListValue* CefListValueImpl::CopyOrDetachValue(
CefValueController* new_controller) {
base::ListValue* new_value;
if (!will_delete()) {
// Copy the value.
new_value = CopyValue();
} else {
// Take ownership of the value.
new_value = Detach(new_controller);
}
DCHECK(new_value);
return new_value;
}
bool CefListValueImpl::IsValid() {
return !detached();
}
bool CefListValueImpl::IsOwned() {
return !will_delete();
}
bool CefListValueImpl::IsReadOnly() {
return read_only();
}
CefRefPtr<CefListValue> CefListValueImpl::Copy() {
CEF_VALUE_VERIFY_RETURN(false, NULL);
return new CefListValueImpl(const_value().DeepCopy(), NULL,
CefListValueImpl::kOwnerWillDelete, false, NULL);
}
bool CefListValueImpl::SetSize(size_t size) {
CEF_VALUE_VERIFY_RETURN(true, false);
size_t current_size = const_value().GetSize();
if (size < current_size) {
// Clean up any values above the requested size.
for (size_t i = current_size-1; i >= size; --i)
RemoveInternal(i);
} else if (size > 0) {
// Expand the list size.
mutable_value()->Set(size-1, base::Value::CreateNullValue());
}
return true;
}
size_t CefListValueImpl::GetSize() {
CEF_VALUE_VERIFY_RETURN(false, 0);
return const_value().GetSize();
}
bool CefListValueImpl::Clear() {
CEF_VALUE_VERIFY_RETURN(true, false);
// Detach any dependent values.
controller()->RemoveDependencies(mutable_value());
mutable_value()->Clear();
return true;
}
bool CefListValueImpl::Remove(int index) {
CEF_VALUE_VERIFY_RETURN(true, false);
return RemoveInternal(index);
}
CefValueType CefListValueImpl::GetType(int index) {
CEF_VALUE_VERIFY_RETURN(false, VTYPE_INVALID);
const base::Value* out_value = NULL;
if (const_value().Get(index, &out_value)) {
switch (out_value->GetType()) {
case base::Value::TYPE_NULL:
return VTYPE_NULL;
case base::Value::TYPE_BOOLEAN:
return VTYPE_BOOL;
case base::Value::TYPE_INTEGER:
return VTYPE_INT;
case base::Value::TYPE_DOUBLE:
return VTYPE_DOUBLE;
case base::Value::TYPE_STRING:
return VTYPE_STRING;
case base::Value::TYPE_BINARY:
return VTYPE_BINARY;
case base::Value::TYPE_DICTIONARY:
return VTYPE_DICTIONARY;
case base::Value::TYPE_LIST:
return VTYPE_LIST;
}
}
return VTYPE_INVALID;
}
bool CefListValueImpl::GetBool(int index) {
CEF_VALUE_VERIFY_RETURN(false, false);
const base::Value* out_value = NULL;
bool ret_value = false;
if (const_value().Get(index, &out_value))
out_value->GetAsBoolean(&ret_value);
return ret_value;
}
int CefListValueImpl::GetInt(int index) {
CEF_VALUE_VERIFY_RETURN(false, 0);
const base::Value* out_value = NULL;
int ret_value = 0;
if (const_value().Get(index, &out_value))
out_value->GetAsInteger(&ret_value);
return ret_value;
}
double CefListValueImpl::GetDouble(int index) {
CEF_VALUE_VERIFY_RETURN(false, 0);
const base::Value* out_value = NULL;
double ret_value = 0;
if (const_value().Get(index, &out_value))
out_value->GetAsDouble(&ret_value);
return ret_value;
}
CefString CefListValueImpl::GetString(int index) {
CEF_VALUE_VERIFY_RETURN(false, CefString());
const base::Value* out_value = NULL;
std::string ret_value;
if (const_value().Get(index, &out_value))
out_value->GetAsString(&ret_value);
return ret_value;
}
CefRefPtr<CefBinaryValue> CefListValueImpl::GetBinary(int index) {
CEF_VALUE_VERIFY_RETURN(false, NULL);
const base::Value* out_value = NULL;
if (const_value().Get(index, &out_value) &&
out_value->IsType(base::Value::TYPE_BINARY)) {
base::BinaryValue* binary_value =
static_cast<base::BinaryValue*>(const_cast<base::Value*>(out_value));
return CefBinaryValueImpl::GetOrCreateRef(binary_value,
const_cast<base::ListValue*>(&const_value()), controller());
}
return NULL;
}
CefRefPtr<CefDictionaryValue> CefListValueImpl::GetDictionary(int index) {
CEF_VALUE_VERIFY_RETURN(false, NULL);
const base::Value* out_value = NULL;
if (const_value().Get(index, &out_value) &&
out_value->IsType(base::Value::TYPE_DICTIONARY)) {
base::DictionaryValue* dict_value =
static_cast<base::DictionaryValue*>(
const_cast<base::Value*>(out_value));
return CefDictionaryValueImpl::GetOrCreateRef(
dict_value,
const_cast<base::ListValue*>(&const_value()),
read_only(),
controller());
}
return NULL;
}
CefRefPtr<CefListValue> CefListValueImpl::GetList(int index) {
CEF_VALUE_VERIFY_RETURN(false, NULL);
const base::Value* out_value = NULL;
if (const_value().Get(index, &out_value) &&
out_value->IsType(base::Value::TYPE_LIST)) {
base::ListValue* list_value =
static_cast<base::ListValue*>(const_cast<base::Value*>(out_value));
return CefListValueImpl::GetOrCreateRef(
list_value,
const_cast<base::ListValue*>(&const_value()),
read_only(),
controller());
}
return NULL;
}
bool CefListValueImpl::SetNull(int index) {
CEF_VALUE_VERIFY_RETURN(true, false);
base::Value* new_value = base::Value::CreateNullValue();
if (RemoveInternal(index))
mutable_value()->Insert(index, new_value);
else
mutable_value()->Set(index, new_value);
return true;
}
bool CefListValueImpl::SetBool(int index, bool value) {
CEF_VALUE_VERIFY_RETURN(true, false);
base::Value* new_value = base::Value::CreateBooleanValue(value);
if (RemoveInternal(index))
mutable_value()->Insert(index, new_value);
else
mutable_value()->Set(index, new_value);
return true;
}
bool CefListValueImpl::SetInt(int index, int value) {
CEF_VALUE_VERIFY_RETURN(true, false);
base::Value* new_value = base::Value::CreateIntegerValue(value);
if (RemoveInternal(index))
mutable_value()->Insert(index, new_value);
else
mutable_value()->Set(index, new_value);
return true;
}
bool CefListValueImpl::SetDouble(int index, double value) {
CEF_VALUE_VERIFY_RETURN(true, false);
base::Value* new_value = base::Value::CreateDoubleValue(value);
if (RemoveInternal(index))
mutable_value()->Insert(index, new_value);
else
mutable_value()->Set(index, new_value);
return true;
}
bool CefListValueImpl::SetString(int index, const CefString& value) {
CEF_VALUE_VERIFY_RETURN(true, false);
base::Value* new_value = base::Value::CreateStringValue(value.ToString());
if (RemoveInternal(index))
mutable_value()->Insert(index, new_value);
else
mutable_value()->Set(index, new_value);
return true;
}
bool CefListValueImpl::SetBinary(int index, CefRefPtr<CefBinaryValue> value) {
CEF_VALUE_VERIFY_RETURN(true, false);
CefBinaryValueImpl* impl = static_cast<CefBinaryValueImpl*>(value.get());
DCHECK(impl);
base::Value* new_value = impl->CopyOrDetachValue(controller());
if (RemoveInternal(index))
mutable_value()->Insert(index, new_value);
else
mutable_value()->Set(index, new_value);
return true;
}
bool CefListValueImpl::SetDictionary(int index,
CefRefPtr<CefDictionaryValue> value) {
CEF_VALUE_VERIFY_RETURN(true, false);
CefDictionaryValueImpl* impl =
static_cast<CefDictionaryValueImpl*>(value.get());
DCHECK(impl);
base::Value* new_value = impl->CopyOrDetachValue(controller());
if (RemoveInternal(index))
mutable_value()->Insert(index, new_value);
else
mutable_value()->Set(index, new_value);
return true;
}
bool CefListValueImpl::SetList(int index, CefRefPtr<CefListValue> value) {
CEF_VALUE_VERIFY_RETURN(true, false);
CefListValueImpl* impl = static_cast<CefListValueImpl*>(value.get());
DCHECK(impl);
base::Value* new_value = impl->CopyOrDetachValue(controller());
if (RemoveInternal(index))
mutable_value()->Insert(index, new_value);
else
mutable_value()->Set(index, new_value);
return true;
}
bool CefListValueImpl::RemoveInternal(int index) {
base::Value* out_value = NULL;
if (!mutable_value()->Remove(index, &out_value))
return false;
// Remove the value.
controller()->Remove(out_value, true);
// Only list and dictionary types may have dependencies.
if (out_value->IsType(base::Value::TYPE_LIST) ||
out_value->IsType(base::Value::TYPE_DICTIONARY)) {
controller()->RemoveDependencies(out_value);
}
delete out_value;
return true;
}
CefListValueImpl::CefListValueImpl(
base::ListValue* value,
void* parent_value,
ValueMode value_mode,
bool read_only,
CefValueController* controller)
: CefValueBase<CefListValue, base::ListValue>(
value, parent_value, value_mode, read_only, controller) {
}