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Added ArrayBufferView scriptable objects

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Atlante45 2014-07-08 16:09:06 -07:00
parent 1f6e1b9509
commit 13fe8b579f
2 changed files with 150 additions and 0 deletions
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103
libraries/script-engine/src/ArrayBufferViewClass.cpp Normal file
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//
// 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(QScriptEngine* engine) :
QObject(engine),
QScriptClass(engine) {
// 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;
//}

47
libraries/script-engine/src/ArrayBufferViewClass.h Normal file
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//
// ArrayBufferViewClass.h
//
//
// 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
//
#ifndef hifi_ArrayBufferViewClass_h
#define hifi_ArrayBufferViewClass_h
#include <QScriptClass>
#include <QtCore/QObject>
#include <QtScript/QScriptClass>
#include <QtScript/QScriptContext>
#include <QtScript/QScriptEngine>
#include <QtScript/QScriptString>
#include <QtScript/QScriptValue>
static const QString BUFFER_PROPERTY_NAME = "buffer";
static const QString BYTE_OFFSET_PROPERTY_NAME = "byteOffset";
static const QString BYTE_LENGTH_PROPERTY_NAME = "byteLength";
class ArrayBufferViewClass : public QObject, public QScriptClass {
Q_OBJECT
public:
ArrayBufferViewClass(QScriptEngine* engine);
QueryFlags queryProperty(const QScriptValue& object,
const QScriptString& name,
QueryFlags flags, uint* id);
QScriptValue property(const QScriptValue &object,
const QScriptString &name, uint id);
QScriptValue::PropertyFlags propertyFlags(const QScriptValue& object,
const QScriptString& name, uint id);
protected:
// JS Object attributes
QScriptString _bufferName;
QScriptString _byteOffsetName;
QScriptString _byteLengthName;
};
#endif // hifi_ArrayBufferViewClass_h