added mute command; make it work with .net 3.5

README.md

@@ -0,0 +1,16 @@
+# Wox.Plugin.Volume
+Control the system volume with [Wox](http://www.getwox.com/).
+
+## Usage
+Keyword: `vol`
+
+Type `+` to increase the volume, `-` to decrease the volume, and `m` to mute. If you type something like `++-`, it will increase twice, and decrease once!
+The increase/decrease step, and the keys to control the volume can be configured: just edit the `config.json` file and restart Wox.
+
+You can also change the style: default style (`percent`) shows a percentage; `bar` will show a ASCII volume bar.
+
+## Gift
+Feel free to offer me some nice icons :)
+
+## Disclaimer
+I don't have sound keys at work..

Wox.Plugin.Volume/Config.cs

@@ -2,8 +2,14 @@
 {
     class Config
     {
+        public const string STYLE_BAR = "bar";
+        public const string STYLE_PERCENT = "percent";
+
         public int step { get; set; }
         public string up { get; set; }
         public string down { get; set; }
+        public string mute { get; set; }
+        public string style { get; set; }
+        public bool applyOnDelete { get; set; }
     }
 }

Wox.Plugin.Volume/Main.cs

@@ -1,40 +1,49 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
 using System.Web.Script.Serialization;
-using CoreAudioApi;
 using System.IO;
 
 namespace Wox.Plugin.Volume
 {
     public class Main : IPlugin
     {
         private PluginInitContext context;
-        private MMDevice PlaybackDevice;
+        private Manager volumeManager;
         private Config config;
         private bool initialized = false;
+        private string initializaionError;
+        private string lastQuery = "";
 
         public void Init(PluginInitContext context)
         {
             this.context = context;
-
+
+            // 1. read the config.json
             try
             {
-                string json = (new StreamReader(context.CurrentPluginMetadata.PluginDirectory + "\\config.json")).ReadToEnd();
-                config = (new JavaScriptSerializer()).Deserialize<Config>(json);
+                using (StreamReader sr = new StreamReader(context.CurrentPluginMetadata.PluginDirectory + "\\config.json"))
+                {
+                    config = (new JavaScriptSerializer()).Deserialize<Config>(sr.ReadToEnd());
+                }
             }
-            catch (System.Exception)
+            catch (Exception e)
             {
+                initializaionError = e.Message;
                 return;
             }
 
+            // 2. initialize the volume handling
             try
             {
-                PlaybackDevice = MMDeviceEnumerator.GetDefaultAudioEndpoint(DataFlow.Render, Role.Multimedia);
+                volumeManager = new Manager();
             }
-            catch (CoreAudioException)
+            catch (Exception e)
             {
+                initializaionError = e.Message;
                 return;
             }
 
+            // 3. all good
             initialized = true;
         }
 
@@ -50,59 +59,97 @@ private Result GetResult(Query query)
             Result result = new Result()
             {
                 Title = "Current volume",
-                SubTitle = "no info",
+                SubTitle = initializaionError,
                 IcoPath = "Images\\icon.png"
             };
 
+            // initialization failed, we can't process the input
             if (!initialized)
             {
                 return result;
             }
 
-            string queryString = query.ToString();
-            string lastChar = queryString.Substring(queryString.Length - 1);
+            string queryString = query.RawQuery;
 
-            int volume = GetVolume();
-            if (lastChar.Equals(config.up))
-            {
-                volume += config.step;
-            }
-            else if (lastChar.Equals(config.down))
+            // do nothing if the config says so and the user deleted the input
+            if (config.applyOnDelete || !config.applyOnDelete && lastQuery.Length < queryString.Length)
             {
-                volume -= config.step;
+                // process the last char
+                ApplyKey(
+                    queryString.Substring(queryString.Length - 1)
+                );
             }
+
+            // write the volume description in the result
+            result.SubTitle = GetVolumeDescription();
 
-            SetVolume(volume);
-            volume = GetVolume();
+            // store the query as last query
+            lastQuery = queryString;
 
-            string volumeDesc = "[";
-            for (int i = 0; i < 100; i += config.step)
+            // change the icon if muted
+            if (volumeManager.IsMute())
             {
-                volumeDesc = string.Concat(volumeDesc, volume > i ? "=" : "-");
+                result.IcoPath = "Images\\mute.png";
             }
-            volumeDesc = string.Concat(volumeDesc, "]");
 
-            result.SubTitle = volumeDesc;
             return result;
         }
 
-        public int GetVolume()
+        private string GetVolumeDescription()
         {
-            return (int) (PlaybackDevice.AudioEndpointVolumeEx.GetMasterVolumeLevelScalar() * 100);
+            if (volumeManager.IsMute())
+            {
+                return "[X]";
+            }
+
+            int volume = volumeManager.GetVolume();
+            string volumeDesc;
+            switch (config.style)
+            {
+                case Config.STYLE_PERCENT:
+                    volumeDesc = volume + "%";
+                    break;
+
+                case Config.STYLE_BAR:
+                    volumeDesc = "[";
+                    for (int i = 0; i < 100; i += config.step)
+                    {
+                        volumeDesc = string.Concat(volumeDesc, volume > i ? "=" : "-");
+                    }
+                    volumeDesc = string.Concat(volumeDesc, "]");
+                    break;
+
+                default:
+                    volumeDesc = "";
+                    break;
+            }
+
+            return volumeDesc;
         }
 
-        public void SetVolume(int volume)
+        private void ApplyKey(string lastChar)
         {
-            if (volume < 0)
+            if (lastChar.Equals(config.mute))
+            {
+                volumeManager.ToggleMute();
+            }
+
+            if (volumeManager.IsMute())
+            {
+                return;
+            }
+
+            int volume = volumeManager.GetVolume();
+            if (lastChar.Equals(config.up))
             {
-                volume = 0;
+                volume += config.step;
             }
-            else if (volume > 100)
+            else if (lastChar.Equals(config.down))
             {
-                volume = 100;
+                volume -= config.step;
             }
 
-            PlaybackDevice.AudioEndpointVolumeEx.SetMasterVolumeLevelScalar(volume / 100.0f);
+            volumeManager.SetVolume(volume);
         }
 
     }

Wox.Plugin.Volume/Manager.cs

@@ -0,0 +1,43 @@
+using CoreAudio;
+
+namespace Wox.Plugin.Volume
+{
+    class Manager
+    {
+        private MMDevice playbackDevice;
+
+        public Manager()
+        {
+            playbackDevice = (new MMDeviceEnumerator()).GetDefaultAudioEndpoint(EDataFlow.eRender, ERole.eMultimedia);
+        }
+
+        public int GetVolume()
+        {
+            return (int)(playbackDevice.AudioEndpointVolume.MasterVolumeLevelScalar * 100);
+        }
+
+        public void SetVolume(int volume)
+        {
+            if (volume < 0)
+            {
+                volume = 0;
+            }
+            else if (volume > 100)
+            {
+                volume = 100;
+            }
+
+            playbackDevice.AudioEndpointVolume.MasterVolumeLevelScalar = volume / 100.0f;
+        }
+
+        public void ToggleMute()
+        {
+            playbackDevice.AudioEndpointVolume.Mute = !IsMute();
+        }
+
+        public bool IsMute()
+        {
+            return playbackDevice.AudioEndpointVolume.Mute;
+        }
+    }
+}

Wox.Plugin.Volume/Wox.Plugin.Volume.csproj

@@ -9,7 +9,7 @@
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>Wox.Plugin.Volume</RootNamespace>
     <AssemblyName>Wox.Plugin.Volume</AssemblyName>
-    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <TargetFrameworkProfile>
     </TargetFrameworkProfile>
@@ -34,26 +34,26 @@
     <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="CoreAudioApi">
-      <HintPath>.\CoreAudioApi.dll</HintPath>
+    <Reference Include="CoreAudio, Version=2.0.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>.\CoreAudio.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Web.Extensions" />
     <Reference Include="System.Xml.Linq" />
     <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="Microsoft.CSharp" />
     <Reference Include="System.Data" />
-    <Reference Include="System.Net.Http" />
     <Reference Include="System.Xml" />
-    <Reference Include="Wox.Plugin, Version=1.1.1.295, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\..\..\packages\Wox.Plugin.1.1.1.295\lib\net35\Wox.Plugin.dll</HintPath>
+    <Reference Include="Wox.Plugin, Version=1.1.0.268, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\..\..\packages\Wox.Plugin.1.1.0\lib\net35\Wox.Plugin.dll</HintPath>
       <Private>True</Private>
     </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Config.cs" />
     <Compile Include="Main.cs" />
+    <Compile Include="Manager.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>

Wox.Plugin.Volume/config.json

@@ -1,5 +1,8 @@
 {
   "step": 5,
   "up": "+",
-  "down":  "-"
+  "down": "-",
+  "mute":  "m",
+  "style": "percent",
+  "applyOnDelete":  false
 }

Wox.Plugin.Volume/packages.config

@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Wox.Plugin" version="1.1.1.295" targetFramework="net452" />
+  <package id="Wox.Plugin" version="1.1.0" targetFramework="net35" />
 </packages>