Color Picker Not Available

[dev-nicolaos]

Describe the bug

When launching the app (installed via flatpak), I'm presented with the message "Color Picker Not Available" as seen in the screenshot below.

To Reproduce

Open the application

1. Open application
2. See error

Expected behavior

The application launches and allows for colors to be selected.

Screenshots

Information

The application is installed via Flatpak. I've seen #72 and #209 but in those issues either the application wasn't installed via Flatpak or the gnome xdg portal wasn't installed, so I think this is different.

When running flatpak run com.github.finefindus.eyedropper with RUST_LOG=debug set via flatseal, I get the following output:

Debugging Information

 INFO  eyedropper::application > Eyedropper (com.github.finefindus.eyedropper)
 INFO  eyedropper::application > Version: 2.1.0 ()
 INFO  eyedropper::application > Datadir: /app/share/eyedropper
 DEBUG eyedropper::application::imp > GtkApplication<App>::startup
 DEBUG eyedropper::application::imp > Starting search provider as com.github.finefindus.eyedropper.SearchProvider on /com/github/finefindus/eyedropper/SearchProvider
 DEBUG eyedropper::application::imp > GtkApplication<App>::activate
 DEBUG eyedropper::window           > Formats: ["name", "hex", "rgb", "hsl", "hsv", "cmyk", "xyz", "cielab", "hwb", "hcl", "lms", "hunterlab", "oklab", "oklch"]
 DEBUG eyedropper::window           > Visible: ["name", "hex", "rgb", "hsl", "hsv", "cmyk"]
 WARN  eyedropper::window::imp      > System does not support color picking
 ERROR eyedropper::window::imp      > Failed to request global shortcuts: A portal frontend implementing `org.freedesktop.portal.GlobalShortcuts` was not found

(eyedropper:2): Gdk-WARNING **: 16:14:19.437: vkAcquireNextImageKHR(): A swapchain no longer matches the surface properties exactly, but can still be used to present to the surface successfully. (VK_SUBOPTIMAL_KHR) (1000001003)

Additional context

flatpak info com.github.finefindus.eyedropper outputs the following

Eyedropper - Pick and format colors

ID: com.github.finefindus.eyedropper
Ref: app/com.github.finefindus.eyedropper/x86_64/stable
Arch: x86_64
Branch: stable
Version: 2.1.0
License: GPL-3.0
Origin: flathub
Collection: org.flathub.Stable
Installation: system
Installed: 6.0 MB
Runtime: org.gnome.Platform/x86_64/48
Sdk: org.gnome.Sdk/x86_64/48

Commit: debdfbfaf7606ed4250f728e94d3b4eabd988d16f68751a9bbcd974052ffa717
Parent: 1adf0101abeb6a658638c3c7a55fe3a7f819ea2feaa2278f70ac676bdf49ac62
Subject: chore: update to v2.1.0 (53c8836c)
Date: 2025-03-23 09:19:49 +0000

The required portals are installed. Running dnf list --installed | grep portal outputs:

libportal.x86_64                                     0.9.1-3.fc43                         updates
libportal-gtk3.x86_64                                0.9.1-3.fc43                         updates
libportal-gtk4.x86_64                                0.9.1-3.fc43                         updates
xdg-desktop-portal.x86_64                            1.20.3-2.fc43                        fedora
xdg-desktop-portal-gnome.x86_64                      49.0-1.fc43                          fedora
xdg-desktop-portal-gtk.x86_64                        1.15.3-2.fc43                        fedora
xdg-desktop-portal-termfilechooser.x86_64            v1.2.1-1.20251108gitv1.2.1.fc43      copr:copr.fedorainfracloud.org:mo-k12:personal

[FineFindus]

Hi,
thanks for the detailed bug report. This is a misconfiguration with your system, Eyedropper merely check whether the portal provides the color picking method, and if it doesn't, the warning screen is displayed.

eyedropper/src/window.rs

Lines 233 to 246 in 7a60797

	async fn is_color_picker_available(&self) -> zbus::Result<bool> {
	let connection = zbus::Connection::session().await?;
	let proxy: zbus::Proxy = zbus::proxy::Builder::new(&connection)
	.interface("org.freedesktop.portal.Screenshot")?
	.path("/org/freedesktop/portal/desktop")?
	.destination("org.freedesktop.portal.Desktop")?
	.build()
	.await?;
	let version = proxy.get_property::<u32>("version").await?;
	// version 2 indicates that the color picker is supported:
	// see: https://github.com/flatpak/xdg-desktop-portal/pull/766,
	Ok(version >= 2)
	}

[bilelmoussaoui]

Hi, thanks for the detailed bug report. This is a misconfiguration with your system, Eyedropper merely check whether the portal provides the color picking method, and if it doesn't, the warning screen is displayed.

eyedropper/src/window.rs

Lines 233 to 246 in 7a60797
async fn is_color_picker_available(&self) -> zbus::Result {
let connection = zbus::Connection::session().await?;
let proxy: zbus::Proxy = zbus::proxy::Builder::new(&connection)
.interface("org.freedesktop.portal.Screenshot")?
.path("/org/freedesktop/portal/desktop")?
.destination("org.freedesktop.portal.Desktop")?
.build()
.await?;
let version = proxy.get_property::("version").await?;

         // version 2 indicates that the color picker is supported: 
         // see: https://github.com/flatpak/xdg-desktop-portal/pull/766, 
         Ok(version >= 2) 
     }

Note that ashpd now allows you to retrieve the version from the proxy with https://docs.rs/ashpd/0.13.7/ashpd/desktop/screenshot/struct.ScreenshotProxy.html#method.version so you can simplify the code a bit.

[bilelmoussaoui]

Might as well switch to request_versioned in https://github.com/bilelmoussaoui/ashpd/blob/main/client/src/desktop/screenshot.rs#L183 so you get a Error::RequiresVersion instead of a random dbus failure.

[FineFindus]

Note that ashpd now allows you to retrieve the version from the proxy with https://docs.rs/ashpd/0.13.7/ashpd/desktop/screenshot/struct.ScreenshotProxy.html#method.version so you can simplify the code a bit.

Oh neat, thanks for the info!