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#include <QFile>
#include <QDir>
#include <QUrl>
#include "jskitmanager.h"
#include "jskitpebble.h"
JSKitManager::JSKitManager(Pebble *pebble, WatchConnection *connection, AppManager *apps, AppMsgManager *appmsg, QObject *parent) :
QObject(parent),
l(metaObject()->className()),
m_pebble(pebble),
m_connection(connection),
m_apps(apps),
m_appmsg(appmsg),
m_engine(0),
m_configurationUuid(0)
{
connect(m_appmsg, &AppMsgManager::appStarted, this, &JSKitManager::handleAppStarted);
connect(m_appmsg, &AppMsgManager::appStopped, this, &JSKitManager::handleAppStopped);
}
JSKitManager::~JSKitManager()
{
if (m_engine) {
stopJsApp();
}
}
QJSEngine * JSKitManager::engine()
{
return m_engine;
}
bool JSKitManager::isJSKitAppRunning() const
{
return m_engine != 0;
}
QString JSKitManager::describeError(QJSValue error)
{
return QString("%1:%2: %3")
.arg(error.property("fileName").toString())
.arg(error.property("lineNumber").toInt())
.arg(error.toString());
}
void JSKitManager::showConfiguration()
{
if (m_engine) {
qCDebug(l) << "requesting configuration";
m_jspebble->invokeCallbacks("showConfiguration");
} else {
qCWarning(l) << "requested to show configuration, but JS engine is not running";
}
}
void JSKitManager::handleWebviewClosed(const QString &result)
{
if (m_engine) {
QJSValue eventObj = m_engine->newObject();
eventObj.setProperty("response", QUrl::fromPercentEncoding(result.toUtf8()));
qCDebug(l) << "Sending" << eventObj.property("response").toString();
m_jspebble->invokeCallbacks("webviewclosed", QJSValueList({eventObj}));
loadJsFile(":/cacheLocalStorage.js");
} else {
qCWarning(l) << "webview closed event, but JS engine is not running";
}
}
void JSKitManager::setConfigurationId(const QUuid &uuid)
{
m_configurationUuid = uuid;
}
AppInfo JSKitManager::currentApp()
{
return m_curApp;
}
void JSKitManager::handleAppStarted(const QUuid &uuid)
{
AppInfo info = m_apps->info(uuid);
if (!info.uuid().isNull() && info.isJSKit()) {
qCDebug(l) << "Preparing to start JSKit app" << info.uuid() << info.shortName();
m_curApp = info;
startJsApp();
}
}
void JSKitManager::handleAppStopped(const QUuid &uuid)
{
if (!m_curApp.uuid().isNull()) {
if (m_curApp.uuid() != uuid) {
qCWarning(l) << "Closed app with invalid UUID";
}
stopJsApp();
m_curApp = AppInfo();
qCDebug(l) << "App stopped" << uuid;
}
}
void JSKitManager::handleAppMessage(const QUuid &uuid, const QVariantMap &msg)
{
if (m_curApp.uuid() == uuid) {
qCDebug(l) << "handling app message" << uuid << msg;
if (m_engine) {
QJSValue eventObj = m_engine->newObject();
eventObj.setProperty("payload", m_engine->toScriptValue(msg));
m_jspebble->invokeCallbacks("appmessage", QJSValueList({eventObj}));
loadJsFile(":/cacheLocalStorage.js");
}
else {
qCDebug(l) << "but engine is stopped";
}
}
}
bool JSKitManager::loadJsFile(const QString &filename)
{
Q_ASSERT(m_engine);
QFile file(filename);
if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
qCWarning(l) << "Failed to load JS file:" << file.fileName();
return false;
}
qCDebug(l) << "evaluating js file" << file.fileName();
QJSValue result = m_engine->evaluate(QString::fromUtf8(file.readAll()), file.fileName());
if (result.isError()) {
qCWarning(l) << "error while evaluating JS script:" << describeError(result);
return false;
}
qCDebug(l) << "JS script evaluated";
return true;
}
void JSKitManager::startJsApp()
{
if (m_engine) stopJsApp();
if (m_curApp.uuid().isNull()) {
qCWarning(l) << "Attempting to start JS app with invalid UUID";
return;
}
m_engine = new QJSEngine(this);
m_jspebble = new JSKitPebble(m_curApp, this, m_engine);
m_jsconsole = new JSKitConsole(m_engine);
m_jsstorage = new JSKitLocalStorage(m_engine, m_pebble->storagePath(), m_curApp.uuid());
m_jsgeo = new JSKitGeolocation(m_engine);
m_jstimer = new JSKitTimer(m_engine);
m_jsperformance = new JSKitPerformance(m_engine);
qCDebug(l) << "starting JS app" << m_curApp.shortName();
QJSValue globalObj = m_engine->globalObject();
QJSValue jskitObj = m_engine->newObject();
jskitObj.setProperty("pebble", m_engine->newQObject(m_jspebble));
jskitObj.setProperty("console", m_engine->newQObject(m_jsconsole));
jskitObj.setProperty("localstorage", m_engine->newQObject(m_jsstorage));
jskitObj.setProperty("geolocation", m_engine->newQObject(m_jsgeo));
jskitObj.setProperty("timer", m_engine->newQObject(m_jstimer));
jskitObj.setProperty("performance", m_engine->newQObject(m_jsperformance));
globalObj.setProperty("_jskit", jskitObj);
QJSValue navigatorObj = m_engine->newObject();
navigatorObj.setProperty("language", m_engine->toScriptValue(QLocale().name()));
globalObj.setProperty("navigator", navigatorObj);
// Set this.window = this
globalObj.setProperty("window", globalObj);
// Shims for compatibility...
loadJsFile(":/jskitsetup.js");
// Polyfills...
loadJsFile(":/typedarray.js");
// Now the actual script
QString jsApp = m_curApp.file(AppInfo::FileTypeJsApp, HardwarePlatformUnknown);
QFile f(jsApp);
if (!f.open(QFile::ReadOnly)) {
qCWarning(l) << "Error opening" << jsApp;
return;
}
QJSValue ret = m_engine->evaluate(QString::fromUtf8(f.readAll()));
qCDebug(l) << "loaded script" << ret.toString();
// Setup the message callback
QUuid uuid = m_curApp.uuid();
m_appmsg->setMessageHandler(uuid, [this, uuid](const QVariantMap &msg) {
QMetaObject::invokeMethod(this, "handleAppMessage", Qt::QueuedConnection,
Q_ARG(QUuid, uuid),
Q_ARG(QVariantMap, msg));
// Invoke the slot as a queued connection to give time for the ACK message
// to go through first.
return true;
});
// We try to invoke the callbacks even if script parsing resulted in error...
m_jspebble->invokeCallbacks("ready");
loadJsFile(":/cacheLocalStorage.js");
if (m_configurationUuid == m_curApp.uuid()) {
qCDebug(l) << "going to launch config for" << m_configurationUuid;
showConfiguration();
}
m_configurationUuid = QUuid();
}
void JSKitManager::stopJsApp()
{
qCDebug(l) << "stop js app" << m_curApp.uuid();
if (!m_engine) return; // Nothing to do!
loadJsFile(":/cacheLocalStorage.js");
if (!m_curApp.uuid().isNull()) {
m_appmsg->clearMessageHandler(m_curApp.uuid());
}
m_engine->collectGarbage();
m_engine->deleteLater();
m_engine = 0;
}
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