QQmlBinding::QQmlBinding(const QQmlScriptString &script, QObject *obj, QQmlContext *ctxt)
: QQmlJavaScriptExpression(&QQmlBinding_jsvtable), QQmlAbstractBinding(Binding)
{
if (ctxt && !ctxt->isValid())
return;
const QQmlScriptStringPrivate *scriptPrivate = script.d.data();
if (!ctxt && (!scriptPrivate->context || !scriptPrivate->context->isValid()))
return;
QString url;
QV4::Function *runtimeFunction = 0;
QQmlContextData *ctxtdata = QQmlContextData::get(scriptPrivate->context);
QQmlEnginePrivate *engine = QQmlEnginePrivate::get(scriptPrivate->context->engine());
if (engine && ctxtdata && !ctxtdata->url.isEmpty() && ctxtdata->typeCompilationUnit) {
url = ctxtdata->url.toString();
if (scriptPrivate->bindingId != QQmlBinding::Invalid)
runtimeFunction = ctxtdata->typeCompilationUnit->runtimeFunctions.at(scriptPrivate->bindingId);
}
setNotifyOnValueChanged(true);
QQmlAbstractExpression::setContext(QQmlContextData::get(ctxt ? ctxt : scriptPrivate->context));
setScopeObject(obj ? obj : scriptPrivate->scope);
if (runtimeFunction) {
v4function = QV4::QmlBindingWrapper::createQmlCallableForFunction(ctxtdata, scopeObject(), runtimeFunction);
} else {
QString code = scriptPrivate->script;
v4function = qmlBinding(context(), scopeObject(), code, url, scriptPrivate->lineNumber);
}
}
void QQmlExpressionPrivate::init(QQmlContextData *ctxt, QV4::Function *runtimeFunction, QObject *me)
{
expressionFunctionValid = true;
function = QV4::QmlBindingWrapper::createQmlCallableForFunction(ctxt, me, runtimeFunction);
QQmlAbstractExpression::setContext(ctxt);
setScopeObject(me);
}
void QQmlExpressionPrivate::init(QQmlContextData *ctxt, const QString &expr, QObject *me)
{
expression = expr;
QQmlAbstractExpression::setContext(ctxt);
setScopeObject(me);
expressionFunctionValid = false;
}
void QQmlBoundSignalExpression::init(QQmlContextData *ctxt, QObject *scope)
{
setNotifyOnValueChanged(false);
setContext(ctxt);
setScopeObject(scope);
Q_ASSERT(m_target && m_index > -1);
m_index = QQmlPropertyCache::originalClone(m_target, m_index);
}
QQmlBinding::QQmlBinding(const QString &str, QObject *obj, QQmlContext *ctxt)
: QQmlJavaScriptExpression(&QQmlBinding_jsvtable), QQmlAbstractBinding(Binding)
{
setNotifyOnValueChanged(true);
QQmlAbstractExpression::setContext(QQmlContextData::get(ctxt));
setScopeObject(obj);
v4function = qmlBinding(context(), obj, str, QString(), 0);
}
QQmlBinding::QQmlBinding(const QV4::ValueRef functionPtr, QObject *obj, QQmlContextData *ctxt)
: QQmlJavaScriptExpression(&QQmlBinding_jsvtable), QQmlAbstractBinding(Binding)
{
setNotifyOnValueChanged(true);
QQmlAbstractExpression::setContext(ctxt);
setScopeObject(obj);
v4function = functionPtr;
}
/*!
\internal
To avoid exposing v8 in the public API, functionPtr must be a pointer to a v8::Handle<v8::Function>.
For example:
v8::Handle<v8::Function> function;
new QQmlBinding(&function, scope, ctxt);
*/
QQmlBinding::QQmlBinding(void *functionPtr, QObject *obj, QQmlContextData *ctxt,
const QString &url, quint16 lineNumber, quint16 columnNumber)
: QQmlJavaScriptExpression(&QQmlBinding_jsvtable), QQmlAbstractBinding(Binding),
m_url(url), m_lineNumber(lineNumber), m_columnNumber(columnNumber)
{
setNotifyOnValueChanged(true);
QQmlAbstractExpression::setContext(ctxt);
setScopeObject(obj);
v8function = qPersistentNew<v8::Function>(*(v8::Handle<v8::Function> *)functionPtr);
}
QQmlBinding::QQmlBinding(const QString &str, QObject *obj,
QQmlContextData *ctxt,
const QString &url, quint16 lineNumber, quint16 columnNumber)
: QQmlJavaScriptExpression(&QQmlBinding_jsvtable), QQmlAbstractBinding(Binding)
{
Q_UNUSED(columnNumber);
setNotifyOnValueChanged(true);
QQmlAbstractExpression::setContext(ctxt);
setScopeObject(obj);
v4function = qmlBinding(ctxt, obj, str, url, lineNumber);
}
QQmlBinding::QQmlBinding(const QString &str, QObject *obj, QQmlContextData *ctxt)
: QQmlJavaScriptExpression(&QQmlBinding_jsvtable), QQmlAbstractBinding(Binding),
m_lineNumber(0), m_columnNumber(0)
{
setNotifyOnValueChanged(true);
QQmlAbstractExpression::setContext(ctxt);
setScopeObject(obj);
QQmlRewrite::RewriteBinding rewriteBinding;
QString code = rewriteBinding(str);
m_expression = str.toUtf8();
v8function = evalFunction(ctxt, obj, code, QString(), 0);
}
QQmlBinding::QQmlBinding(const QQmlScriptString &script, QObject *obj, QQmlContext *ctxt)
: QQmlJavaScriptExpression(&QQmlBinding_jsvtable), QQmlAbstractBinding(Binding)
{
if (ctxt && !ctxt->isValid())
return;
const QQmlScriptStringPrivate *scriptPrivate = script.d.data();
if (!ctxt && (!scriptPrivate->context || !scriptPrivate->context->isValid()))
return;
bool needRewrite = true;
QString code;
int id = scriptPrivate->bindingId;
if (id >= 0) {
QQmlContextData *ctxtdata = QQmlContextData::get(scriptPrivate->context);
QQmlEnginePrivate *engine = QQmlEnginePrivate::get(scriptPrivate->context->engine());
if (engine && ctxtdata && !ctxtdata->url.isEmpty()) {
QQmlTypeData *typeData = engine->typeLoader.getType(ctxtdata->url);
Q_ASSERT(typeData);
if (QQmlCompiledData *cdata = typeData->compiledData()) {
needRewrite = false;
code = cdata->primitives.at(id);
m_url = cdata->name;
}
typeData->release();
}
}
if (needRewrite) {
QQmlRewrite::RewriteBinding rewriteBinding;
code = rewriteBinding(scriptPrivate->script);
}
setNotifyOnValueChanged(true);
QQmlAbstractExpression::setContext(QQmlContextData::get(ctxt ? ctxt : scriptPrivate->context));
setScopeObject(obj ? obj : scriptPrivate->scope);
m_expression = scriptPrivate->script.toUtf8();
m_lineNumber = scriptPrivate->lineNumber;
m_columnNumber = scriptPrivate->columnNumber;
v8function = evalFunction(context(), scopeObject(), code, QString(), m_lineNumber);
}
QQmlBinding::QQmlBinding(const QString &str, bool isRewritten, QObject *obj,
QQmlContextData *ctxt,
const QString &url, quint16 lineNumber, quint16 columnNumber)
: QQmlJavaScriptExpression(&QQmlBinding_jsvtable), QQmlAbstractBinding(Binding),
m_url(url), m_lineNumber(lineNumber), m_columnNumber(columnNumber)
{
setNotifyOnValueChanged(true);
QQmlAbstractExpression::setContext(ctxt);
setScopeObject(obj);
QString code;
if (isRewritten) {
code = str;
} else {
QQmlRewrite::RewriteBinding rewriteBinding;
code = rewriteBinding(str);
}
m_expression = str.toUtf8();
v8function = evalFunction(ctxt, obj, code, url, m_lineNumber);
}
