/*!
Set the \a value of the \a name property on this context.
QDeclarativeContext does \bold not take ownership of \a value.
*/
void QDeclarativeContext::setContextProperty(const QString &name, QObject *value)
{
Q_D(QDeclarativeContext);
if (d->notifyIndex == -1)
d->notifyIndex = this->metaObject()->methodCount();
QDeclarativeContextData *data = d->data;
if (data->isInternal) {
qWarning("QDeclarativeContext: Cannot set property on internal context.");
return;
}
if (!isValid()) {
qWarning("QDeclarativeContext: Cannot set property on invalid context.");
return;
}
if (!data->propertyNames) data->propertyNames = new QDeclarativeIntegerCache(data->engine);
int idx = data->propertyNames->value(name);
if (idx == -1) {
data->propertyNames->add(name, data->idValueCount + d->propertyValues.count());
d->propertyValues.append(QVariant::fromValue(value));
data->refreshExpressions();
} else {
d->propertyValues[idx] = QVariant::fromValue(value);
QMetaObject::activate(this, idx + d->notifyIndex, 0);
}
}
/*
Refreshes all expressions that could possibly depend on this context. Refreshing flushes all
context-tree dependent caches in the expressions, and should occur every time the context tree
*structure* (not values) changes.
*/
void QDeclarativeContextData::refreshExpressions()
{
QDeclarativeContextData *child = childContexts;
while (child) {
child->refreshExpressions();
child = child->nextChild;
}
QDeclarativeAbstractExpression *expression = expressions;
while (expression) {
expression->refresh();
expression = expression->m_nextExpression;
}
}