Add refresh button which updates sound device list (#3387)

* Add refresh button which updates sound device list

* Update changelog

CHANGES.rst

@@ -18,6 +18,8 @@ New Features
 Cubeviz
 ^^^^^^^
 
+- Enhancements for the cube sonification plugin. [#3387]
+
 Imviz
 ^^^^^
 

jdaviz/configs/cubeviz/plugins/sonify_data/sonify_data.py

@@ -66,10 +66,8 @@ def __init__(self, *args, **kwargs):
                                  ' works on devices with valid sound output.')
 
         else:
-            devices, indexes = self.build_device_lists()
-            self.sound_device_indexes = dict(zip(devices, indexes))
-            self.sound_devices_items = devices
-            self.sound_devices_selected = dict(zip(indexes, devices))[sd.default.device[1]]
+            self.sound_device_indexes = None
+            self.refresh_device_list()
 
         # TODO: Remove hardcoded range and flux viewer
         self.spec_viewer = self.app.get_viewer('spectrum-viewer')
@@ -118,6 +116,15 @@ def update_sound_device(self, event):
             didx = dict(zip(*self.build_device_lists()))[event['new']]
             self.flux_viewer.update_sound_device(didx)
 
+    def refresh_device_list(self):
+        devices, indexes = self.build_device_lists()
+        self.sound_device_indexes = dict(zip(devices, indexes))
+        self.sound_devices_items = devices
+        self.sound_devices_selected = dict(zip(indexes, devices))[sd.default.device[1]]
+
+    def vue_refresh_device_list_in_dropdown(self, *args):
+        self.refresh_device_list()
+
     def build_device_lists(self):
         # dedicated function to build the current *output*
         # device and index lists

jdaviz/configs/cubeviz/plugins/sonify_data/sonify_data.vue

@@ -132,6 +132,11 @@
       >
         Stop stream
       </plugin-action-button>
+      <plugin-action-button
+        @click="refresh_device_list_in_dropdown"
+      >
+        Refresh Device List
+      </plugin-action-button>
     </v-row>
     <v-row>
       <v-select