From 1874d01eda378031623972fcdd1a7224fce7635d Mon Sep 17 00:00:00 2001
From: Jochen Henneberg <jh@henneberg-systemdesign.com>
Date: Wed, 6 Sep 2017 07:59:56 +0000
Subject: [PATCH] qmlglsink: Expose itemInitialized as property

Instead of just signalling when ready exposing the state
as a property allows us to bind at any time if player is
loaded async.
---
 ext/qt/qtitem.cc | 8 +++++++-
 ext/qt/qtitem.h  | 8 +++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/ext/qt/qtitem.cc b/ext/qt/qtitem.cc
index b20a6fb5da..65b883eab8 100644
--- a/ext/qt/qtitem.cc
+++ b/ext/qt/qtitem.cc
@@ -178,6 +178,12 @@ QtGLVideoItem::getForceAspectRatio()
   return this->priv->force_aspect_ratio;
 }
 
+bool
+QtGLVideoItem::itemInitialized()
+{
+  return m_openGlContextInitialized;
+}
+
 QSGNode *
 QtGLVideoItem::updatePaintNode(QSGNode * oldNode,
     UpdatePaintNodeData * updatePaintNodeData)
@@ -290,7 +296,7 @@ QtGLVideoItem::onSceneGraphInitialized ()
   GST_DEBUG ("%p created wrapped GL context %" GST_PTR_FORMAT, this,
       this->priv->other_context);
 
-  emit itemInitialized();
+  emit itemInitializedChanged();
 }
 
 void
diff --git a/ext/qt/qtitem.h b/ext/qt/qtitem.h
index 8cffc24454..065d043eaf 100644
--- a/ext/qt/qtitem.h
+++ b/ext/qt/qtitem.h
@@ -64,6 +64,11 @@ class InitializeSceneGraph;
 class QtGLVideoItem : public QQuickItem, protected QOpenGLFunctions
 {
     Q_OBJECT
+
+    Q_PROPERTY(bool itemInitialized
+               READ itemInitialized
+               NOTIFY itemInitializedChanged)
+
 public:
     QtGLVideoItem();
     ~QtGLVideoItem();
@@ -72,13 +77,14 @@ public:
     void getDAR(gint *, gint *);
     void setForceAspectRatio(bool);
     bool getForceAspectRatio();
+    bool itemInitialized();
 
     QSharedPointer<QtGLVideoItemInterface> getInterface() { return proxy; };
     /* private for C interface ... */
     QtGLVideoItemPrivate *priv;
 
 Q_SIGNALS:
-    void itemInitialized();
+    void itemInitializedChanged();
 
 private Q_SLOTS:
     void handleWindowChanged(QQuickWindow * win);