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Diffstat (limited to 'src/declarative/qml/v8/qjsengine.cpp')
| -rw-r--r-- | src/declarative/qml/v8/qjsengine.cpp | 476 |
1 files changed, 0 insertions, 476 deletions
diff --git a/src/declarative/qml/v8/qjsengine.cpp b/src/declarative/qml/v8/qjsengine.cpp deleted file mode 100644 index 3121d1b361..0000000000 --- a/src/declarative/qml/v8/qjsengine.cpp +++ /dev/null @@ -1,476 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). -** Contact: http://www.qt-project.org/ -** -** This file is part of the QtScript module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL-ONLY$ -** GNU Lesser General Public License Usage -** This file may be used under the terms of the GNU Lesser -** General Public License version 2.1 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 2.1 requirements -** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. -** -** If you have questions regarding the use of this file, please contact -** us via http://www.qt-project.org/. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#include "qjsengine.h" -#include "qjsengine_p.h" -#include "qjsvalue.h" -#include "qjsvalue_p.h" -#include "qscriptisolate_p.h" -#include "qscript_impl_p.h" -#include "qv8engine_p.h" - -#include <QtCore/qdatetime.h> -#include <QtCore/qmetaobject.h> -#include <QtCore/qstringlist.h> -#include <QtCore/qvariant.h> -#include <QtCore/qdatetime.h> - -#include <QtCore/qcoreapplication.h> -#include <QtCore/qdir.h> -#include <QtCore/qfile.h> -#include <QtCore/qfileinfo.h> -#include <QtCore/qpluginloader.h> -#include <qthread.h> -#include <qmutex.h> -#include <qwaitcondition.h> - -#undef Q_D -#undef Q_Q -#define Q_D(blah) -#define Q_Q(blah) - -Q_DECLARE_METATYPE(QJSValue) -Q_DECLARE_METATYPE(QObjectList) -Q_DECLARE_METATYPE(QList<int>) - -/*! - \since 5.0 - \class QJSEngine - - \brief The QJSEngine class provides an environment for evaluating JavaScript code. - - \ingroup qtjavascript - \mainclass - - \section1 Evaluating Scripts - - Use evaluate() to evaluate script code. - - \snippet doc/src/snippets/code/src_script_qjsengine.cpp 0 - - evaluate() returns a QJSValue that holds the result of the - evaluation. The QJSValue class provides functions for converting - the result to various C++ types (e.g. QJSValue::toString() - and QJSValue::toNumber()). - - The following code snippet shows how a script function can be - defined and then invoked from C++ using QJSValue::call(): - - \snippet doc/src/snippets/code/src_script_qjsengine.cpp 1 - - As can be seen from the above snippets, a script is provided to the - engine in the form of a string. One common way of loading scripts is - by reading the contents of a file and passing it to evaluate(): - - \snippet doc/src/snippets/code/src_script_qjsengine.cpp 2 - - Here we pass the name of the file as the second argument to - evaluate(). This does not affect evaluation in any way; the second - argument is a general-purpose string that is used to identify the - script for debugging purposes (for example, our filename will now - show up in any uncaughtExceptionBacktrace() involving the script). - - \section1 Engine Configuration - - The globalObject() function returns the \bold {Global Object} - associated with the script engine. Properties of the Global Object - are accessible from any script code (i.e. they are global - variables). Typically, before evaluating "user" scripts, you will - want to configure a script engine by adding one or more properties - to the Global Object: - - \snippet doc/src/snippets/code/src_script_qjsengine.cpp 3 - - Adding custom properties to the scripting environment is one of the - standard means of providing a scripting API that is specific to your - application. Usually these custom properties are objects created by - the newQObject() or newObject() functions. - - \section1 Script Exceptions - - evaluate() can throw a script exception (e.g. due to a syntax - error); in that case, the return value is the value that was thrown - (typically an \c{Error} object). You can check whether the - evaluation caused an exception by calling hasUncaughtException(). In - that case, you can call toString() on the error object to obtain an - error message. The current uncaught exception is also available - through uncaughtException(). - Calling clearExceptions() will cause any uncaught exceptions to be - cleared. - - \snippet doc/src/snippets/code/src_script_qjsengine.cpp 4 - - \section1 Script Object Creation - - Use newObject() to create a JavaScript object; this is the - C++ equivalent of the script statement \c{new Object()}. You can use - the object-specific functionality in QJSValue to manipulate the - script object (e.g. QJSValue::setProperty()). Similarly, use - newArray() to create a JavaScript array object. - - \section1 QObject Integration - - Use newQObject() to wrap a QObject (or subclass) - pointer. newQObject() returns a proxy script object; properties, - children, and signals and slots of the QObject are available as - properties of the proxy object. No binding code is needed because it - is done dynamically using the Qt meta object system. - - \snippet doc/src/snippets/code/src_script_qjsengine.cpp 5 - - \sa QJSValue, {Making Applications Scriptable} - -*/ - -QT_BEGIN_NAMESPACE - - -/*! - Constructs a QJSEngine object. - - The globalObject() is initialized to have properties as described in - \l{ECMA-262}, Section 15.1. -*/ -QJSEngine::QJSEngine() - : d(new QV8Engine(this)) -{ -} - -#ifdef QT_DEPRECATED - -/*! - \internal -*/ -QJSEngine::QJSEngine(QJSEngine::ContextOwnership ownership) - : d(new QV8Engine(this, ownership)) -{ -} - -#endif // QT_DEPRECATED - -/*! - Constructs a QJSEngine object with the given \a parent. - - The globalObject() is initialized to have properties as described in - \l{ECMA-262}, Section 15.1. -*/ - -QJSEngine::QJSEngine(QObject *parent) - : QObject(parent) - , d(new QV8Engine(this)) -{ -} - -QJSEngine::QJSEngine(QJSEnginePrivate &dd, QObject *parent) - : QObject(dd, parent) - , d(new QV8Engine(this)) -{ -} - -/*! - Destroys this QJSEngine. -*/ -QJSEngine::~QJSEngine() -{ - delete d; -} - -/*! - \fn QV8Engine *QJSEngine::handle() const - \internal -*/ - -#ifdef QT_DEPRECATED - -/*! - \obsolete - - Returns true if the last script evaluation resulted in an uncaught - exception; otherwise returns false. - - The exception state is cleared when evaluate() is called. - - \sa uncaughtException(), uncaughtExceptionLineNumber(), - uncaughtExceptionBacktrace() -*/ -bool QJSEngine::hasUncaughtException() const -{ - Q_D(const QJSEngine); - QScriptIsolate api(d); - return d->hasUncaughtException(); -} - -/*! - \obsolete - - Returns the current uncaught exception, or an invalid QJSValue - if there is no uncaught exception. - - The exception value is typically an \c{Error} object; in that case, - you can call toString() on the return value to obtain an error - message. - - \sa hasUncaughtException(), uncaughtExceptionLineNumber(), - uncaughtExceptionBacktrace() -*/ -QJSValue QJSEngine::uncaughtException() const -{ - Q_D(const QJSEngine); - QScriptIsolate api(d); - return d->scriptValueFromInternal(d->uncaughtException()); -} - -/*! - \obsolete - - Clears any uncaught exceptions in this engine. - - \sa hasUncaughtException() -*/ -void QJSEngine::clearExceptions() -{ - Q_D(QJSEngine); - QScriptIsolate api(d); - d->clearExceptions(); -} - -#endif // QT_DEPRECATED - -/*! - Runs the garbage collector. - - The garbage collector will attempt to reclaim memory by locating and disposing of objects that are - no longer reachable in the script environment. - - Normally you don't need to call this function; the garbage collector will automatically be invoked - when the QJSEngine decides that it's wise to do so (i.e. when a certain number of new objects - have been created). However, you can call this function to explicitly request that garbage - collection should be performed as soon as possible. - - \sa reportAdditionalMemoryCost() -*/ -void QJSEngine::collectGarbage() -{ - Q_D(QJSEngine); - QScriptIsolate api(d); - d->collectGarbage(); -} - -/*! - Evaluates \a program, using \a lineNumber as the base line number, - and returns the result of the evaluation. - - The script code will be evaluated in the current context. - - The evaluation of \a program can cause an exception in the - engine; in this case the return value will be the exception - that was thrown (typically an \c{Error} object). You can call - hasUncaughtException() to determine if an exception occurred in - the last call to evaluate(). - - \a lineNumber is used to specify a starting line number for \a - program; line number information reported by the engine that pertain - to this evaluation (e.g. uncaughtExceptionLineNumber()) will be - based on this argument. For example, if \a program consists of two - lines of code, and the statement on the second line causes a script - exception, uncaughtExceptionLineNumber() would return the given \a - lineNumber plus one. When no starting line number is specified, line - numbers will be 1-based. - - \a fileName is used for error reporting. For example in error objects - the file name is accessible through the "fileName" property if it's - provided with this function. -*/ -QJSValue QJSEngine::evaluate(const QString& program, const QString& fileName, int lineNumber) -{ - Q_D(QJSEngine); - QScriptIsolate api(d, QScriptIsolate::NotNullEngine); - v8::HandleScope handleScope; - return QJSValuePrivate::get(d->evaluate(program, fileName, lineNumber)); -} - -/*! - Creates a JavaScript object of class Object. - - The prototype of the created object will be the Object - prototype object. - - \sa newArray(), QJSValue::setProperty() -*/ -QJSValue QJSEngine::newObject() -{ - Q_D(QJSEngine); - QScriptIsolate api(d, QScriptIsolate::NotNullEngine); - v8::HandleScope handleScope; - return QJSValuePrivate::get(new QJSValuePrivate(d, v8::Object::New())); -} - -/*! - Creates a JavaScript object of class Array with the given \a length. - - \sa newObject() -*/ -QJSValue QJSEngine::newArray(uint length) -{ - Q_D(QJSEngine); - QScriptIsolate api(d, QScriptIsolate::NotNullEngine); - v8::HandleScope handleScope; - return QJSValuePrivate::get(d->newArray(length)); -} - -/*! - Creates a JavaScript object that wraps the given QObject \a - object, using JavaScriptOwnership. The given \a options control - various aspects of the interaction with the resulting script object. - - Signals and slots, properties and children of \a object are - available as properties of the created QJSValue. - - If \a object is a null pointer, this function returns a null value. - - If a default prototype has been registered for the \a object's class - (or its superclass, recursively), the prototype of the new script - object will be set to be that default prototype. - - If the given \a object is deleted outside of the engine's control, any - attempt to access the deleted QObject's members through the JavaScript - wrapper object (either by script code or C++) will result in a - script exception. - - \sa QJSValue::toQObject(), reportAdditionalMemoryCost() -*/ -QJSValue QJSEngine::newQObject(QObject *object) -{ - Q_D(QJSEngine); - QScriptIsolate api(d, QScriptIsolate::NotNullEngine); - v8::HandleScope handleScope; - return d->scriptValueFromInternal(d->newQObject(object, QV8Engine::JavaScriptOwnership)); -} - -/*! - Returns this engine's Global Object. - - By default, the Global Object contains the built-in objects that are - part of \l{ECMA-262}, such as Math, Date and String. Additionally, - you can set properties of the Global Object to make your own - extensions available to all script code. Non-local variables in - script code will be created as properties of the Global Object, as - well as local variables in global code. -*/ -QJSValue QJSEngine::globalObject() const -{ - Q_D(const QJSEngine); - QScriptIsolate api(d, QScriptIsolate::NotNullEngine); - v8::HandleScope handleScope; - return d->scriptValueFromInternal(d->global()); -} - -/*! - * \internal - * used by QJSEngine::toScriptValue - */ -QJSValue QJSEngine::create(int type, const void *ptr) -{ - Q_D(QJSEngine); - QScriptIsolate api(d, QScriptIsolate::NotNullEngine); - v8::HandleScope handleScope; - return d->scriptValueFromInternal(d->metaTypeToJS(type, ptr)); -} - -/*! - \internal - \since 4.5 - convert \a value to \a type, store the result in \a ptr -*/ -bool QJSEngine::convertV2(const QJSValue &value, int type, void *ptr) -{ - QJSValuePrivate *vp = QJSValuePrivate::get(value); - QV8Engine *engine = vp->engine(); - if (engine) { - QScriptIsolate api(engine, QScriptIsolate::NotNullEngine); - v8::HandleScope handleScope; - return engine->metaTypeFromJS(*vp, type, ptr); - } else { - switch (type) { - case QMetaType::Bool: - *reinterpret_cast<bool*>(ptr) = vp->toBool(); - return true; - case QMetaType::Int: - *reinterpret_cast<int*>(ptr) = vp->toInt32(); - return true; - case QMetaType::UInt: - *reinterpret_cast<uint*>(ptr) = vp->toUInt32(); - return true; - case QMetaType::LongLong: - *reinterpret_cast<qlonglong*>(ptr) = vp->toInteger(); - return true; - case QMetaType::ULongLong: - *reinterpret_cast<qulonglong*>(ptr) = vp->toInteger(); - return true; - case QMetaType::Double: - *reinterpret_cast<double*>(ptr) = vp->toNumber(); - return true; - case QMetaType::QString: - *reinterpret_cast<QString*>(ptr) = vp->toString(); - return true; - case QMetaType::Float: - *reinterpret_cast<float*>(ptr) = vp->toNumber(); - return true; - case QMetaType::Short: - *reinterpret_cast<short*>(ptr) = vp->toInt32(); - return true; - case QMetaType::UShort: - *reinterpret_cast<unsigned short*>(ptr) = vp->toUInt16(); - return true; - case QMetaType::Char: - *reinterpret_cast<char*>(ptr) = vp->toInt32(); - return true; - case QMetaType::UChar: - *reinterpret_cast<unsigned char*>(ptr) = vp->toUInt16(); - return true; - case QMetaType::QChar: - *reinterpret_cast<QChar*>(ptr) = vp->toUInt16(); - return true; - default: - return false; - } - } -} - -/*! \fn QJSValue QJSEngine::toScriptValue(const T &value) - - Creates a QJSValue with the given \a value. - - \sa fromScriptValue() -*/ - -/*! \fn T QJSEngine::fromScriptValue(const QJSValue &value) - - Returns the given \a value converted to the template type \c{T}. - - \sa toScriptValue() -*/ - -QT_END_NAMESPACE - -#include "moc_qjsengine.cpp" |