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// Copyright (C) 2026 Danilo M. <danix@danix.xyz>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2 as
// published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
pragma Singleton
import Quickshell
import Quickshell.Io
import QtQuick
// The icon and cursor themes installed on this machine. Previews are resolved
// from each theme, not just the active one: Quickshell.iconPath can only read
// the platform theme or QS_ICON_THEME, both fixed at load.
Singleton {
id: root
readonly property string home: Quickshell.env("HOME")
readonly property string iconScript: `
import sys
import gi
gi.require_version("Gtk", "3.0")
from gi.repository import Gtk
SAMPLES = ["folder","text-x-generic","image-x-generic","network-wireless",
"audio-x-generic","video-x-generic","battery-full","printer"]
t = Gtk.IconTheme.new()
for name in sys.argv[1:]:
t.set_custom_theme(name)
for s in SAMPLES:
info = t.lookup_icon(s, 32, 0)
if info:
print("%s\\t%s\\t%s" % (name, s, info.get_filename()))
print("%s\\tEND\\t" % name)
`
property var iconThemes: []
property var cursorThemes: []
property string currentIcon: ""
property string currentCursor: ""
property var iconPreview: ({})
property var cursorPreview: ({})
property bool scanning: true
property string notice: ""
// Pure: classify works on entries shaped { name, index, cursors, manifest }
// so it can be tested without touching the filesystem.
function classify(entries) {
const icons = [], cursors = [];
for (const e of entries) {
if (e.cursors || e.manifest) cursors.push(e.name);
else if (e.index && /Directories=\S/.test(e.index)) icons.push(e.name);
}
const uniq = a => a.filter((v, i) => a.indexOf(v) === i).sort();
return { icons: uniq(icons), cursors: uniq(cursors) };
}
function selftest(): string {
const entries = [
{ name: "Material-Black-Plum-Suru", index: "Directories=32x32/apps\n", cursors: false, manifest: false },
{ name: "hypr_bibata-modern-amber", index: "", cursors: false, manifest: true },
{ name: "default", index: "Inherits=Bibata-Modern-Amber\n", cursors: false, manifest: false },
{ name: "breeze_cursors", index: "", cursors: true, manifest: false },
];
const r = root.classify(entries);
if (r.icons.length !== 1 || r.icons[0] !== "Material-Black-Plum-Suru")
return `SELFTEST Icons FAIL: icons ${JSON.stringify(r.icons)}`;
if (r.cursors.length !== 2 || r.cursors.indexOf("hypr_bibata-modern-amber") < 0 ||
r.cursors.indexOf("breeze_cursors") < 0)
return `SELFTEST Icons FAIL: cursors ${JSON.stringify(r.cursors)}`;
return "SELFTEST Icons PASS";
}
function refresh() {
scanProc.running = false;
scanProc.running = true;
curProc.running = false;
curProc.running = true;
}
// One shell pass over every theme root. Format per line:
// name|hasIndex|cursors|manifest|Directories=
Process {
id: scanProc
command: ["sh", "-c",
`for d in ${root.home}/.icons/* ${root.home}/.local/share/icons/* ` +
`/usr/share/icons/*; do [ -d "$d" ] || continue; ` +
`i=0; c=0; m=0; dirs=""; ` +
`[ -d "$d/cursors" ] && c=1; ` +
`[ -f "$d/manifest.hl" ] && m=1; ` +
`if [ -f "$d/index.theme" ]; then i=1; dirs=$(sed -n 's/^Directories=//p' "$d/index.theme"); fi; ` +
`echo "$(basename "$d")|$i|$c|$m|$dirs"; done`]
stdout: StdioCollector {
onStreamFinished: {
const entries = [];
for (const line of text.trim().split("\n")) {
const p = line.split("|");
if (p.length < 5) continue;
entries.push({ name: p[0], index: p[1] === "1" ? "Directories=" + (p[4] || "x") : "",
cursors: p[2] === "1", manifest: p[3] === "1" });
}
const r = root.classify(entries);
root.iconThemes = r.icons;
root.cursorThemes = r.cursors;
root.scanning = false;
if (root.iconThemes.length) root.previewIcons();
}
}
}
// One python process for every icon theme, so opening the tab costs one
// spawn, not one per theme.
function previewIcons() {
if (!root.iconThemes.length) return;
iconProc.command = ["python3", "-c", root.iconScript].concat(root.iconThemes);
iconProc.running = false;
iconProc.running = true;
}
Process {
id: iconProc
stdout: StdioCollector {
onStreamFinished: {
const next = {};
for (const line of text.split("\n")) {
const p = line.split("\t");
if (p.length < 2 || p[1] === "END" || !p[2]) continue;
if (!next[p[0]]) next[p[0]] = {};
next[p[0]][p[1]] = p[2];
}
root.iconPreview = next;
}
}
}
// gsettings for the current values.
Process {
id: curProc
command: ["sh", "-c",
`gsettings get org.gnome.desktop.interface icon-theme; ` +
`gsettings get org.gnome.desktop.interface cursor-theme`]
stdout: StdioCollector {
onStreamFinished: {
const lines = text.trim().split("\n");
root.currentIcon = (lines[0] ?? "").replace(/'/g, "");
root.currentCursor = (lines[1] ?? "").replace(/'/g, "");
}
}
}
// A cursor theme is a manifest + .hlc shapes, a shape directory with SVGs,
// or a legacy Xcursor cursors/ directory. The extracted image goes to the
// per-shell cache; on failure the tab shows nothing rather than a broken
// image.
function previewCursor(name) {
const dir = Quickshell.cachePath("cursors");
const out = `${dir}/${name}.png`;
curPreviewProc.themeName = name;
curPreviewProc.command = ["sh", "-c",
`set -e; ` +
`d=""; for r in ${root.home}/.icons ${root.home}/.local/share/icons /usr/share/icons; do ` +
`[ -d "$r/${name}" ] && d="$r/${name}" && break; done; [ -n "$d" ] || exit 1; ` +
`mkdir -p ${dir}; ` +
`c=""; for n in left_ptr default pointer hand2; do ` +
`if [ -f "$d/hyprcursors/$n.hlc" ]; then c="$d/hyprcursors/$n.hlc"; break; fi; ` +
`if [ -f "$d/hyprcursors/$n/$n.svg" ]; then c="$d/hyprcursors/$n/$n.svg"; break; fi; ` +
`if [ -f "$d/$n.hlc" ]; then c="$d/$n.hlc"; break; fi; ` +
`if [ -f "$d/$n/$n.svg" ]; then c="$d/$n/$n.svg"; break; fi; ` +
`if [ -f "$d/cursors/$n" ]; then c="$d/cursors/$n"; break; fi; done; ` +
`[ -n "$c" ] || exit 1; ` +
`case "$c" in ` +
`*.hlc) unzip -p "$c" '*.svg' > ${out} 2>/dev/null; ` +
`[ -s ${out} ] || unzip -p "$c" '*.png' > ${out} 2>/dev/null; ` +
`[ -s ${out} ] || exit 1;; ` +
`*.svg) cp "$c" ${out};; ` +
`*) rm -rf ${dir}/raw-${name}; mkdir -p ${dir}/raw-${name}; ` +
`xcur2png -d ${dir}/raw-${name} "$c" >/dev/null 2>&1; ` +
`cp "$(ls ${dir}/raw-${name}/$(basename "$c")_*.png | tail -1)" ${out};; esac`]
curPreviewProc.running = false;
curPreviewProc.running = true;
}
Process {
id: curPreviewProc
property string themeName: ""
onExited: code => {
if (code === 0) {
const next = Object.assign({}, root.cursorPreview);
next[themeName] = `${Quickshell.cachePath("cursors")}/${themeName}.png`;
root.cursorPreview = next;
}
}
}
// Writes go through FileView so no shell quoting is involved. They are
// preloaded because setText on an unloaded FileView would write empty.
FileView { id: qt6File; path: `${root.home}/.config/qt6ct/qt6ct.conf`; blockLoading: true }
FileView { id: qt5File; path: `${root.home}/.config/qt5ct/qt5ct.conf`; blockLoading: true }
FileView { id: envFile; path: `${root.home}/.config/hypr/sections/environment.lua`; blockLoading: true }
function gsettingsSet(key, value) {
gsetProc.command = ["gsettings", "set", "org.gnome.desktop.interface", key, value];
gsetProc.running = false;
gsetProc.running = true;
}
Process { id: gsetProc }
function applyIcon(name) {
root.gsettingsSet("icon-theme", name);
const files = [qt6File, qt5File];
for (let i = 0; i < files.length; i++) {
const text = files[i].text();
if (text !== "") files[i].setText(text.replace(/^icon_theme=.*/m, `icon_theme=${name}`));
}
root.currentIcon = name;
root.notice = `${name} set. Restart apps to see it.`;
}
function applyCursor(name) {
// Live switch first, then persistence.
Quickshell.execDetached(["hyprctl", "setcursor", name, "24"]);
root.gsettingsSet("cursor-theme", name);
const text = envFile.text();
// Matches both XCURSOR_THEME and HYPRCURSOR_THEME: both end in
// CURSOR_THEME", ".
if (text !== "")
envFile.setText(text.replace(/(CURSOR_THEME", ")[^"]*/g, (m, p1) => p1 + name));
root.currentCursor = name;
root.notice = `${name} set live. environment.lua updated for next login.`;
}
}
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