Understand how to bind ExecutablePath and data from AppInfo

[ForNeVeR]

See the code near this line:

ProcessDoctor/ProcessDoctor.Backend.Linux/LinuxProcess.cs

Line 35 in 0eeea96

// TODO: Understand how to bind ExecutablePath and data from AppInfo

So, we know the executable of some app and want to get the corresponding AppInfo from GLib.

Currently, to do that, we enumerate all the available AppInfo objects and just pick the first one with the corresponding Executable field.

Maybe we could improve this? How is it supposed to really work? Can a single executable have several AppInfo entries?

[y0ung3r]

Can a single executable have several AppInfo entries?

I don't think so. AppInfo represents the metadata of the application installed on the system

[y0ung3r]

At the moment I know of only three ways to get icons

• Through the AppInfoAdapter class (implemented now).

• Through the FileFactory class:

var file = FileFactory.NewForPath(ExecutablePath);
using var fileMetadata = file.QueryInfo(
    "standard::*", 
    FileQueryInfoFlags.None, 
    cancellable: null);
        
using var iconTheme = new IconTheme();
using var icon = iconTheme.LookupIcon(
    fileMetadata.Icon, 
    size: 1024, 
    IconLookupFlags.UseBuiltin);

• Through the IconTheme.ListIcons method:

using var iconTheme = new IconTheme();
var iconName = iconTheme
     .ListIcons("Applications")
     .FirstOrDefault(applicationName => applicationName == Name);

if (iconName is null)
    return ExtractStockIcon(iconTheme);
        
using var icon = iconTheme.LoadIcon(
    iconName,
    size: 1024,
    IconLookupFlags.UseBuiltin);

Maybe someone knows more ways? For example, these methods don't work for the firefox application (Firefox Browser).

We need to find a way to get icons for as many applications as possible.