Add function: You can specify sound volume. (linuxmint#3678)

* Add function: You can specify sound volume.

applet.js
Add a parameter to spawnCommandLine.

settings-schema.json
Add scale for specify volume.

* Update settings-schema.json

cinnamon-timer@jake1164/files/cinnamon-timer@jake1164/3.4/applet.js

@@ -179,6 +179,7 @@ MyApplet.prototype = {
  this.MessagePromptOn = this.settings.getValue("message-prompt-enable");
  this.ShowMenuOn = this.settings.getValue("display-menu-enable");
  this.SoundPath = this.settings.getValue("sound-file");
+ this.SoundVolume = this.settings.getValue("sound-volume");
  this.MessageStr = this.settings.getValue("display-message");
  this.AutoLoopPromptOn = this.settings.getValue("auto-loop-enable");
  this.on_orientation_changed(this._orientation);
@@ -401,7 +402,7 @@ MyApplet.prototype = {
  }
  if (this.SoundPromptOn) {
  try {
- Util.spawnCommandLine("play " + this.SoundPath);
+ Util.spawnCommandLine("play -v " + this.SoundVolume/100 + " " + this.SoundPath);
  }
  catch (e) {
  // spawnCommandLine does not actually throw exception when a sound fails to play

cinnamon-timer@jake1164/files/cinnamon-timer@jake1164/3.4/settings-schema.json

@@ -41,7 +41,7 @@
  "section2": {
  "type": "section",
  "title": "Sound Settings",
- "keys": ["sound-prompt-enable", "sound-file"]
+ "keys": ["sound-prompt-enable", "sound-file", "sound-volume"]
  },
  "section3": {
  "type": "section",
@@ -85,6 +85,16 @@
  "description": "Full path and filename of alert sound file",
  "tooltip": "Must have Sox installed. Most sound file types supported"
  },
+ "sound-volume" : {
+ "type" : "scale",
+ "default" : 50,
+ "min" : 10,
+ "max" : 100,
+ "step" : 5,
+ "description" : "Specify the playback volume",
+ "tooltip" : "Specify the playback volume"
+ },
+
  "display-menu-enable" : {
  "type" : "checkbox",
  "default" : false,