[QSoundBuffer] Replace isReady() with state() states

The two-state "isReady" is not enough for checking if loading was
already requested.
This also makes it abvious we're accepting load() after error.

Change-Id: I8181f99e8b36be484ec791862941b5b2ec78eb1f
Reviewed-by: Yoann Lopes <yoann.lopes@theqtcompany.com>

1 files changed, 12 insertions, 1 deletions

diff --git a/src/imports/audioengine/qsoundbuffer_p.h b/src/imports/audioengine/qsoundbuffer_p.h
index e9cc4cc01..9a98b59ba 100644
--- a/src/imports/audioengine/qsoundbuffer_p.h
+++ b/src/imports/audioengine/qsoundbuffer_p.h
@@ -41,11 +41,22 @@ QT_BEGIN_NAMESPACE
 class QSoundBuffer : public QObject
 {
     Q_OBJECT
+
 public:
-    virtual bool isReady() const = 0;
+    enum State
+    {
+        Creating,
+        Loading,
+        Error,
+        Ready
+    };
+
+    virtual State state() const = 0;
+
     virtual void load() = 0;
 
 Q_SIGNALS:
+    void stateChanged(State state);
     void ready();
     void error();