Open
Description
This stackoverflow post implies that notification managers can actually control sounds. Not 100% sure if many applications use this, or if they just play the sounds themselves, but that's the deal. This is from the hints table:
+------------------------------------------------------------------------+
| Name | Value Type | Description |
|------------------+------------+----------------------------------------|
| "urgency" | byte | The urgency level. |
|------------------+------------+----------------------------------------|
| "category" | string | The type of notification this is. |
|------------------+------------+----------------------------------------|
| | | This specifies the name of the |
| | | desktop filename representing the |
| | | calling program. This should be the |
| | | same as the prefix used for the |
| "desktop-entry"> | string | application's .desktop file. An |
| | | example would be "rhythmbox" from |
| | | "rhythmbox.desktop". This can be used |
| | | by the daemon to retrieve the correct |
| | | icon for the application, for logging |
| | | purposes, etc. |
|------------------+------------+----------------------------------------|
| | | This is a raw data image format |
| | | which describes the width, height, |
| "image_data" | (iiibiiay) | rowstride, has alpha, bits per sample, |
| | | channels and image data respectively. |
| | | We use this value if the icon field is |
| | | left blank. |
|------------------+------------+----------------------------------------|
| "sound-file" | string | The path to a sound file to play |
| | | when the notification pops up. |
|------------------+------------+----------------------------------------|
| | | Causes the server to suppress |
| | | playing any sounds, if it has that |
| "suppress-sound" | boolean | ability. This is usually set when the |
| | | client itself is going to play its own |
| | | sound. |
|------------------+------------+----------------------------------------|
| | | Specifies the X location on the |
| "x" | int | screen that the notification should |
| | | point to. The "y" hint must also be |
| | | specified. |
|------------------+------------+----------------------------------------|
| | | Specifies the Y location on the |
| "y" | int | screen that the notification should |
| | | point to. The "x" hint must also be |
| | | specified. |
+------------------------------------------------------------------------+
It'd be cool to try to implement this functionality, specifically sound-file and suppress-sound.