[client] keybind: add ScrollLock+C to cycle microphone defaults

This makes it possible to change the default action taken the next time
an application tries to open the microphone without restarting the
client.

client/src/keybind.c

@@ -139,6 +139,27 @@ void keybind_commonRegister(void)
       "Toggle overlay");
 }
 
+#if ENABLE_AUDIO
+static void bind_toggleMicDefault(int sc, void * opaque)
+{
+  g_state.micDefaultState = (g_state.micDefaultState + 1) % MIC_DEFAULT_MAX;
+
+  switch (g_state.micDefaultState)
+  {
+    case MIC_DEFAULT_PROMPT:
+      app_alert(LG_ALERT_INFO, "Microphone access will prompt");
+      break;
+
+    case MIC_DEFAULT_ALLOW:
+      app_alert(LG_ALERT_INFO, "Microphone access allowed by default");
+      break;
+
+    case MIC_DEFAULT_DENY:
+      app_alert(LG_ALERT_INFO, "Microphone access denied by default");
+  }
+}
+#endif
+
 void keybind_spiceRegister(void)
 {
   /* register the common keybinds for spice */
@@ -170,6 +191,8 @@ void keybind_spiceRegister(void)
     {
       app_registerKeybind(0, 'E', audio_recordToggleKeybind, NULL,
           "Toggle audio recording");
+      app_registerKeybind(0, 'C', bind_toggleMicDefault, NULL,
+          "Cycle audio recording default");
     }
 #endif
 

client/src/main.h

@@ -50,6 +50,7 @@ enum MicDefaultState {
   MIC_DEFAULT_ALLOW,
   MIC_DEFAULT_DENY
 };
+#define MIC_DEFAULT_MAX (MIC_DEFAULT_DENY + 1)
 
 struct AppState
 {