Implement FileOpen event

This allows Quackle to respond to system file open
events.  So, if .gcg is associated with Quackle, then
double-clicking a .gcg file will now make it open in
Quackle (whether it's running or not).  And drag and
drop, etc.

This definitely fixes issues trying to open files with
double-click on Mac.  Windows doesn't have the
.gcg association set up yet, so code is untested
there, but it should be platform independent.

1 files changed, 41 insertions, 1 deletions

diff --git a/quacker/main.cpp b/quacker/main.cpp
index 964f9b2..213297f 100644
--- a/quacker/main.cpp
+++ b/quacker/main.cpp
@@ -17,13 +17,53 @@
  */
 
 #include <QApplication>
+#include <QFileOpenEvent>
 
 #include "quacker.h"
 
+class QuackerApplication : public QApplication
+{
+public:
+	QuackerApplication(int& argc, char** argv)
+		: QApplication(argc, argv)
+		, m_TopLevel(NULL)
+	{
+		// empty
+	};
+
+	virtual bool event(QEvent* event)
+	{
+		switch(event->type())
+		{
+			case QEvent::FileOpen:
+			{
+				QFileOpenEvent* fileOpenEvent = static_cast<QFileOpenEvent*>(event);
+				if (m_TopLevel && !fileOpenEvent->file().isEmpty())
+				{
+					m_TopLevel->openFile(fileOpenEvent->file());
+					return true;
+				}
+			}
+			// no break
+			default:
+				return QApplication::event(event);
+		}
+	}
+
+	void setTopLevel(TopLevel* topLevel)
+	{
+		m_TopLevel = topLevel;
+	}
+
+private:
+	TopLevel* m_TopLevel;
+};
+
 int main(int argc, char **argv)
 {
-	QApplication a(argc, argv);
+	QuackerApplication a(argc, argv);
 	TopLevel topLevel;
+	a.setTopLevel(&topLevel);
 	topLevel.show();
 	return a.exec();
 }