107 lines
3.2 KiB
C++
107 lines
3.2 KiB
C++
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#include "FGQmlInstance.hxx"
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#include <QDebug>
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#include <QJSValueIterator>
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#include "FGQmlPropertyNode.hxx"
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#include <simgear/structure/commands.hxx>
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#include <Main/fg_props.hxx>
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namespace {
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void convertJSObjectToPropertyNode(QJSValue js, SGPropertyNode *node);
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void convertSingleJSValue(QJSValue v, SGPropertyNode* node)
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{
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if (v.isNumber()) {
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node->setDoubleValue(v.toNumber());
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} else if (v.isBool()) {
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node->setBoolValue(v.toBool());
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} else if (v.isString()) {
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node->setStringValue(v.toString().toStdString());
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} else {
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qWarning() << Q_FUNC_INFO << "unhandld JS type";
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}
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}
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void convertJSObjectToPropertyNode(QJSValue js, SGPropertyNode* node)
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{
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QJSValueIterator it(js);
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while (it.hasNext()) {
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it.next();
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const auto propName = it.name().toStdString();
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QJSValue v = it.value();
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if (v.isObject()) {
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// recursion is fun :)
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SGPropertyNode_ptr childNode = node->getChild(propName, true);
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convertJSObjectToPropertyNode(v, childNode);
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} else if (v.isArray()) {
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// mapping arbitrary JS arrays is slightly uncomfortable, but
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// this makes the common case work:
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// foobar: [1,4, "apples", false]
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// becomes foobar[0] = 1; foobar[1] = 4; foobar[2] = "apples";
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// foobar[3] = false;
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// not perfect but useful enough to be worth supporting.
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QJSValueIterator arrayIt(v);
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int propIndex = 0;
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while (arrayIt.hasNext()) {
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arrayIt.next();
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SGPropertyNode_ptr childNode = node->getChild(propName, propIndex++, true);
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if (arrayIt.value().isArray()) {
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// there is no sensible mapping of this to SGPropertyNode
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qWarning() << Q_FUNC_INFO <<"arrays of array not possible";
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} else if (arrayIt.value().isObject()) {
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convertJSObjectToPropertyNode(arrayIt.value(), childNode);
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} else {
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// simple case, just convert the value in place
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convertSingleJSValue(arrayIt.value(), childNode);
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}
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}
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} else {
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convertSingleJSValue(v, node->getChild(propName, true));
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}
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}
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}
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} // of anonymous namespace
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FGQmlInstance::FGQmlInstance(QObject *parent) : QObject(parent)
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{
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}
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bool FGQmlInstance::command(QString name, QJSValue args)
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{
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const std::string cmdName = name.toStdString();
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SGCommandMgr* mgr = SGCommandMgr::instance();
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if (!mgr->getCommand(cmdName)) {
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qWarning() << "No such command" << name;
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return false;
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}
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SGPropertyNode_ptr propArgs(new SGPropertyNode);
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// convert JSValue args into a property tree.
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if (args.isObject()) {
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convertJSObjectToPropertyNode(args, propArgs);
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}
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//////
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return mgr->execute(cmdName, propArgs, globals->get_props());
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}
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FGQmlPropertyNode *FGQmlInstance::property(QString path, bool create) const
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{
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SGPropertyNode_ptr node = fgGetNode(path.toStdString(), create);
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if (!node)
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return nullptr;
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FGQmlPropertyNode* result = new FGQmlPropertyNode;
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result->setNode(node);
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return result;
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}
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