overte/libraries/script-engine/src/ArrayBufferViewClass.cpp
Atlante45 b2b1701965 - Bunch of fixes to typed arrays
- First working prototype for Int8Array
- Base classes for all other typed arrays
2014-07-09 17:47:09 -07:00

104 lines
3.9 KiB
C++

//
// ArrayBufferViewClass.cpp
//
//
// Created by Clement on 7/8/14.
// Copyright 2014 High Fidelity, Inc.
//
// Distributed under the Apache License, Version 2.0.
// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
#include "ArrayBufferViewClass.h"
Q_DECLARE_METATYPE(QByteArray*)
ArrayBufferViewClass::ArrayBufferViewClass(ScriptEngine* scriptEngine) :
QObject(scriptEngine->getScriptEngine()),
QScriptClass(scriptEngine->getScriptEngine()),
_scriptEngine(scriptEngine) {
// Save string handles for quick lookup
_bufferName = engine()->toStringHandle(BUFFER_PROPERTY_NAME.toLatin1());
_byteOffsetName = engine()->toStringHandle(BYTE_OFFSET_PROPERTY_NAME.toLatin1());
_byteLengthName = engine()->toStringHandle(BYTE_LENGTH_PROPERTY_NAME.toLatin1());
}
QScriptClass::QueryFlags ArrayBufferViewClass::queryProperty(const QScriptValue& object,
const QScriptString& name,
QueryFlags flags, uint* id) {
if (name == _bufferName || name == _byteOffsetName || name == _byteLengthName) {
return flags &= HandlesReadAccess; // Only keep read access flags
}
return 0; // No access
}
QScriptValue ArrayBufferViewClass::property(const QScriptValue &object,
const QScriptString &name, uint id) {
if (name == _bufferName) {
return object.data().property(_bufferName);
}
if (name == _byteOffsetName) {
return object.data().property(_byteOffsetName);
}
if (name == _byteLengthName) {
return object.data().property(_byteLengthName);
}
return QScriptValue();
}
QScriptValue::PropertyFlags ArrayBufferViewClass::propertyFlags(const QScriptValue& object,
const QScriptString& name, uint id) {
return QScriptValue::Undeletable;
}
//QScriptClass::QueryFlags DataViewClass::queryProperty(const QScriptValue& object,
// const QScriptString& name,
// QueryFlags flags, uint* id) {
// QByteArray* arrayBuffer = qscriptvalue_cast<QByteArray*>(object.property(_bufferName).data());
// bool ok = false;
// int pos = name.toArrayIndex(&ok);
//
// // Check that name is a valid index and arrayBuffer exists
// if (ok && arrayBuffer && pos > 0 && pos < arrayBuffer->size()) {
// *id = pos; // save pos to avoid recomputation
// return HandlesReadAccess | HandlesWriteAccess; // Read/Write access
// }
//
// return ArrayBufferViewClass::queryProperty(object, name, flags, id);
//}
//
//QScriptValue DataViewClass::property(const QScriptValue &object,
// const QScriptString &name, uint id) {
// QByteArray* arrayBuffer = qscriptvalue_cast<QByteArray*>(object.property(_bufferName).data());
// bool ok = false;
// name.toArrayIndex(&ok);
//
// if (ok && arrayBuffer) {
// return (*arrayBuffer)[id];
// }
//
// return ArrayBufferViewClass::queryProperty(object, name, flags, id);
//}
//
//void DataViewClass::setProperty(QScriptValue &object,
// const QScriptString &name,
// uint id, const QScriptValue &value) {
// QByteArray *ba = qscriptvalue_cast<QByteArray*>(object.data());
// if (!ba)
// return;
// if (name == length) {
// resize(*ba, value.toInt32());
// } else {
// qint32 pos = id;
// if (pos < 0)
// return;
// if (ba->size() <= pos)
// resize(*ba, pos + 1);
// (*ba)[pos] = char(value.toInt32());
// }
//}
//
//QScriptValue::PropertyFlags DataViewClass::propertyFlags(const QScriptValue& object,
// const QScriptString& name, uint id) {
// return QScriptValue::Undeletable;
//}