From b700eaa3f35b931445df06ba1ff952a709f82cc5 Mon Sep 17 00:00:00 2001
From: Gubolin <gubolin@fantasymail.de>
Date: Sun, 3 Aug 2014 12:41:23 +0200
Subject: add mute functions

---
 gui.js     | 19 +++++++++++++++----
 objects.js | 23 +++++++++++++++++++++++
 2 files changed, 38 insertions(+), 4 deletions(-)

diff --git a/gui.js b/gui.js
index 38e70ac..28549df 100644
--- a/gui.js
+++ b/gui.js
@@ -3407,10 +3407,21 @@ IDE_Morph.prototype.toggleMuteSounds = function (isMuted) {
     this.isMuted = isNil(isMuted) ? !this.isMuted : isMuted;
     this.controlBar.muteSoundsButton.refresh();
 	
-    this.sprites.asArray().forEach(function (sprt) {
-        sprt.refreshVolumeOfAllActiveSounds();
-    });
-    this.stage.refreshVolumeOfAllActiveSounds();
+    /* stage.activeSounds holds all active sounds
+     * a sprite's .activeSounds holds just its own
+     * so you have to use the stage to mute
+     * and the sprite to unmute, because the stage's volume
+     * overrides the sprite's one.
+     */
+
+    if (this.isMuted === false) {
+        this.stage.unmuteAllSounds();
+        this.sprites.asArray().forEach(function (sprt) {
+            sprt.unmuteAllSounds();
+        });
+    } else {
+        this.stage.muteAllSounds();
+    }
 };
 
 IDE_Morph.prototype.createNewProject = function () {
diff --git a/objects.js b/objects.js
index fda06f6..c8147d9 100644
--- a/objects.js
+++ b/objects.js
@@ -2619,6 +2619,10 @@ SpriteMorph.prototype.playSound = function (name) {
         sound.volume = this.volume;
         active = sound.play();
 
+        if (stage.muted === true) {
+            active.volume = 0;
+        }
+
         this.activeSounds.push(active);
         this.activeSounds = this.activeSounds.filter(function (aud) {
             return !aud.ended && !aud.terminated;
@@ -2651,6 +2655,13 @@ SpriteMorph.prototype.reportVolume = function () {
     return this.volume;
 }
 
+SpriteMorph.prototype.unmuteAllSounds = function () {
+    var stage = this.parentThatIsA(StageMorph);
+    stage.muted = false;
+
+    this.doSetVolume(this.volume);
+};
+
 SpriteMorph.prototype.reportSounds = function () {
     return this.sounds;
 };
@@ -4293,6 +4304,7 @@ StageMorph.prototype.init = function (globals) {
     this.isFastTracked = false;
     this.cloneCount = 0;
     this.volume = 100;
+    this.muted = false;
 
     this.timerStart = Date.now();
     this.tempo = 60; // bpm
@@ -5507,6 +5519,17 @@ StageMorph.prototype.resumeAllActiveSounds = function () {
     });
 };
 
+StageMorph.prototype.muteAllSounds = function () {
+    this.muted = true;
+
+    this.activeSounds.forEach(function (audio) {
+        audio.volume = 0;
+    });
+};
+
+StageMorph.prototype.unmuteAllSounds
+    = SpriteMorph.prototype.unmuteAllSounds;
+
 StageMorph.prototype.reportSounds
     = SpriteMorph.prototype.reportSounds;
 
-- 
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