execute_command
Description:
The signal is emitted when a command should be executed.
This might be something like `GtkSourceVimIMContext:wq` or `GtkSourceVimIMContext:e <path>`.
If the application chooses to implement this, it should return true from this signal to indicate the command has been handled.
Parameters:
| command |
the command to execute |
Returns:
|
true if handled; otherwise false. |