preparing for library package

1 files changed, 96 insertions, 0 deletions

diff --git a/libsowatch/declarativewatchlet.cpp b/libsowatch/declarativewatchlet.cpp
new file mode 100644
index 0000000..7e6768e
--- /dev/null
+++ b/libsowatch/declarativewatchlet.cpp
@@ -0,0 +1,96 @@
+#include <QtCore/QDebug>
+#include <QtDeclarative/QtDeclarative>
+#include "watchserver.h"
+#include "declarativewatchwrapper.h"
+#include "declarativewatchlet.h"
+
+using namespace sowatch;
+
+bool DeclarativeWatchlet::_registered = false;
+
+DeclarativeWatchlet::DeclarativeWatchlet(WatchServer* server, const QString& id) :
+	GraphicsWatchlet(server, id),
+	_engine(0),
+	_component(0),
+	_item(0),
+	_wrapper(0)
+{
+	setScene(new QGraphicsScene(this));
+
+	if (!_registered) {
+		qmlRegisterUncreatableType<DeclarativeWatchWrapper>("com.javispedro.sowatch", 1, 0,
+			"Watch", "Watch is only available via the 'watch' object");
+		_registered = true;
+	}
+
+	_engine = new QDeclarativeEngine(this);
+	_wrapper = new DeclarativeWatchWrapper(server->watch(), this);
+
+	_engine->rootContext()->setContextProperty("watch", _wrapper);
+}
+
+void DeclarativeWatchlet::setSource(const QUrl &url)
+{
+	if (_item) {
+		scene()->removeItem(_item);
+		delete _item;
+		_item = 0;
+	}
+	if (_component) {
+		delete _component;
+		_component = 0;
+	}
+	if (!url.isEmpty()) {
+		_component = new QDeclarativeComponent(_engine, url, this);
+		connect(_component, SIGNAL(statusChanged(QDeclarativeComponent::Status)),
+				SLOT(handleComponentStatus(QDeclarativeComponent::Status)));
+		if (!_component->isLoading()) {
+			/* No signals are going to be generated for this. */
+			handleComponentStatus(_component->status());
+		} else {
+			connect(_component, SIGNAL(statusChanged(QDeclarativeComponent::Status)),
+					this, SLOT(handleComponentStatus(QDeclarativeComponent::Status)));
+		}
+	}
+}
+
+void DeclarativeWatchlet::activate()
+{
+	Watchlet::activate();
+	_wrapper->activate();
+	_scene->update();
+}
+
+void DeclarativeWatchlet::deactivate()
+{
+	Watchlet::deactivate();
+	_wrapper->deactivate();
+}
+
+void DeclarativeWatchlet::handleComponentStatus(QDeclarativeComponent::Status status)
+{
+	QObject *obj;
+	disconnect(_component, SIGNAL(statusChanged(QDeclarativeComponent::Status)),
+			   this, SLOT(handleComponentStatus(QDeclarativeComponent::Status)));
+	switch (status) {
+	case QDeclarativeComponent::Null:
+	case QDeclarativeComponent::Loading:
+		/* Nothing to do */
+		break;
+	case QDeclarativeComponent::Ready:
+		obj = _component->create();
+		if (_component->isError()) {
+			qWarning() << "QML has instantation errors:";
+			qWarning() <<  _component->errors();
+			return;
+		}
+		Q_ASSERT(_item == 0);
+		_item = qobject_cast<QDeclarativeItem*>(obj);
+		scene()->addItem(_item);
+		break;
+	case QDeclarativeComponent::Error:
+		qWarning() << "QML has errors:";
+		qWarning() <<  _component->errors();
+		break;
+	}
+}