From e6c8ffe793d20f8d2d959b74ae62f15886c5e3cb Mon Sep 17 00:00:00 2001
From: Fabien Freling <public@ffreling.com>
Date: Fri, 7 Jun 2019 14:25:34 +0200
Subject: [PATCH] Add loaded state

---
 src/qt/main.qml |  1 +
 src/qt/oboy.cpp | 10 ++++++++--
 src/qt/oboy.h   |  8 ++++++++
 3 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/src/qt/main.qml b/src/qt/main.qml
index 0f523b7..168b195 100644
--- a/src/qt/main.qml
+++ b/src/qt/main.qml
@@ -57,6 +57,7 @@ ApplicationWindow {
     MainForm {
         anchors.fill: parent
         openButton.onClicked: fileDialog.open()
+        openButton.text: oboy.loaded ? "Loaded" : "Open ROM"
     }
 
     MessageDialog {
diff --git a/src/qt/oboy.cpp b/src/qt/oboy.cpp
index 09d8ded..0575eee 100644
--- a/src/qt/oboy.cpp
+++ b/src/qt/oboy.cpp
@@ -62,7 +62,13 @@ bool OBoy::load(const QString &path)
 
     ocaml_path = caml_copy_string_of_os(ba.data());
 
-    const bool success = Bool_val(caml_callback(*closure_f, ocaml_path));
+    _loaded = Bool_val(caml_callback(*closure_f, ocaml_path));
+    this->loadedChanged(_loaded);
     CAMLdrop;
-    return success;
+    return _loaded;
+}
+
+bool OBoy::loaded() const
+{
+    return _loaded;
 }
diff --git a/src/qt/oboy.h b/src/qt/oboy.h
index 5a67932..0f9c852 100644
--- a/src/qt/oboy.h
+++ b/src/qt/oboy.h
@@ -7,10 +7,18 @@ class OBoy : public QObject
     Q_OBJECT
     Q_PROPERTY(QString name READ name CONSTANT)
     Q_PROPERTY(QString version READ version CONSTANT)
+    Q_PROPERTY(bool loaded READ loaded NOTIFY loadedChanged)
 public:
     explicit OBoy(QObject *parent = nullptr);
 
     QString name() const;
     QString version() const;
+    bool loaded() const;
     Q_INVOKABLE bool load(const QString &path);
+
+signals:
+    void loadedChanged(bool loaded);
+
+private:
+    bool _loaded = false;
 };