feat(ui/views/App/Calls/Incall): supports call quality

tests/src/components/call/CallModel.cpp

@@ -57,6 +57,10 @@ void CallModel::transfer () {
   // TODO
 }
 
+float CallModel::getQuality () const {
+  return m_linphone_call->getCurrentQuality();
+}
+
 // -----------------------------------------------------------------------------
 
 QString CallModel::getSipAddress () const {

tests/src/components/call/CallModel.hpp

@@ -37,6 +37,8 @@ public:
   Q_INVOKABLE void terminate ();
   Q_INVOKABLE void transfer ();
 
+  Q_INVOKABLE float getQuality () const;
+
 signals:
   void statusChanged (CallStatus status);
   void microMutedChanged (bool status);

tests/ui/views/App/Calls/Incall.qml

@@ -47,8 +47,25 @@ Rectangle {
         id: callQuality
 
         anchors.left: parent.left
-        icon: 'call_quality_' + 2
+        icon: 'call_quality_0'
         iconSize: CallStyle.header.iconSize
+        onIconChanged: console.log(icon)
+        // See: http://www.linphone.org/docs/liblinphone/group__call__misc.html#ga62c7d3d08531b0cc634b797e273a0a73
+        Timer {
+          interval: 5000
+          repeat: true
+          running: true
+          triggeredOnStart: true
+
+          onTriggered: {
+            var quality = call.getQuality()
+            callQuality.icon = 'call_quality_' + (
+              // Note: `quality` is in the [0, 5] interval.
+              // It's necessary to map in the `call_quality_` interval. ([0, 3])
+              quality >= 0 ? Math.round(quality / (5 / 3)) : 0
+            )
+          }
+        }
       }
 
       ContactDescription {