From 76de87fecd072c46df7443bba267b6b5b3797e96 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fernando=20Jim=C3=A9nez=20Moreno?= <ferjmoreno@gmail.com>
Date: Wed, 11 Jul 2018 15:31:27 +0200
Subject: [PATCH] Add GetParamValue message type

---
 servo-media/src/audio/node.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/servo-media/src/audio/node.rs b/servo-media/src/audio/node.rs
index 2a8e2402..61bba7d8 100644
--- a/servo-media/src/audio/node.rs
+++ b/servo-media/src/audio/node.rs
@@ -4,6 +4,7 @@ use audio::block::{Chunk, Tick};
 use audio::buffer_source_node::{AudioBufferSourceNodeMessage, AudioBufferSourceNodeOptions};
 use audio::gain_node::GainNodeOptions;
 use audio::oscillator_node::OscillatorNodeOptions;
+use std::sync::mpsc::Sender;
 
 /// Information required to construct an audio node
 #[derive(Debug, Clone)]
@@ -115,6 +116,9 @@ pub(crate) trait AudioNodeEngine: Send + AudioNodeCommon {
 
     fn message(&mut self, msg: AudioNodeMessage, sample_rate: f32) {
         match msg {
+            AudioNodeMessage::GetParamValue(id, tx) => {
+                let _ = tx.send(self.get_param(id).value());
+            }
             AudioNodeMessage::SetChannelCount(c) => self.set_channel_count(c),
             AudioNodeMessage::SetChannelMode(c) => self.set_channel_count_mode(c),
             AudioNodeMessage::SetChannelInterpretation(c) => self.set_channel_interpretation(c),
@@ -175,6 +179,7 @@ pub(crate) trait AudioNodeEngine: Send + AudioNodeCommon {
 pub enum AudioNodeMessage {
     AudioBufferSourceNode(AudioBufferSourceNodeMessage),
     AudioScheduledSourceNode(AudioScheduledSourceNodeMessage),
+    GetParamValue(ParamType, Sender<f32>),
     SetChannelCount(u8),
     SetChannelMode(ChannelCountMode),
     SetChannelInterpretation(ChannelInterpretation),