feat(appearance): steps window, icon regen, cursor out of hypr-theme

StepsWindow shows unified-desktop-theme's pending manual steps, one tab per
consumer, centred on DP-3 on the top layer with on-demand focus so it can
stay open while commands are pasted elsewhere. udt-steps writes the files
and calls the new `steps` IPC verb; indented lines become command blocks
with a copy button. The Theme tab pipes install.sh's output into it.

The icon switch now also reruns udt-accent (SDDM power icons) and
waybar-theme-udt's install.sh (taskbar theme, module icons), chained after
the gsettings write both read. Cursor changes write ~/.config/udt/cursor.lua
instead of editing hypr-theme's tracked environment.lua.

The theme notice and the Udt.qml comment claimed install.sh reloads
nothing; it reloads Hyprland, waybar, kitty and conky now.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 106 insertions, 0 deletions

diff --git a/appearance/Steps.qml b/appearance/Steps.qml
new file mode 100644
index 0000000..5bab158
--- /dev/null
+++ b/appearance/Steps.qml
@@ -0,0 +1,106 @@
+// 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 manual steps unified-desktop-theme cannot run itself: root copies into
+// /boot and /usr/share/sddm, the finish on the homepage host, and the last
+// install.sh log. Each is a file in ~/.cache/udt/steps/, written by
+// udt-steps, which then calls this shell's `steps` IPC verb. Nothing is
+// watched: the poke is the signal, and a shell started later finds the files
+// on its first reload.
+Singleton {
+    id: root
+
+    readonly property string dir: `${Quickshell.env("HOME")}/.cache/udt/steps`
+
+    // [{ name, blocks: [{ cmd, text }] }], sorted by name.
+    property var tabs: []
+    signal loaded
+
+    // A line indented two spaces is a command, and a run of them is one block
+    // with its own copy button. Blank lines split prose into paragraphs. The
+    // format is what the producers already print to a terminal.
+    function parse(text) {
+        const out = [];
+        const lines = text.split("\n");
+        for (let i = 0; i < lines.length; i++) {
+            const line = lines[i];
+            const cmd = line.startsWith("  ");
+            const last = out.length ? out[out.length - 1] : null;
+            if (!cmd && line.trim() === "") {
+                if (last) last.closed = true;
+                continue;
+            }
+            const body = cmd ? line.slice(2) : line;
+            if (last && last.cmd === cmd && !last.closed) last.lines.push(body);
+            else out.push({ cmd: cmd, lines: [body], closed: false });
+        }
+        return out.map(b => ({ cmd: b.cmd, text: b.lines.join("\n") }));
+    }
+
+    function commands(tab) {
+        return tab.blocks.filter(b => b.cmd).map(b => b.text).join("\n");
+    }
+
+    function copy(text) {
+        Quickshell.execDetached(["wl-copy", "--", text]);
+    }
+
+    function refresh() {
+        listProc.running = false;
+        listProc.running = true;
+    }
+
+    function dismiss(name) {
+        rmProc.command = ["rm", "-f", `${root.dir}/${name}`];
+        rmProc.running = true;
+    }
+
+    // One pass over every file, each prefixed by an ASCII record separator
+    // and its name. The names are udt-steps' [a-z0-9-], and its temporary
+    // files are dotfiles, which the glob skips.
+    Process {
+        id: listProc
+        command: ["sh", "-c",
+            `cd ${JSON.stringify(root.dir)} 2>/dev/null || exit 0; ` +
+            `for f in *; do [ -f "$f" ] && printf '\\036%s\\n' "$f" && cat "$f"; done`]
+        stdout: StdioCollector {
+            onStreamFinished: {
+                root.tabs = text.split("\x1e").filter(s => s.length).map(rec => {
+                    const nl = rec.indexOf("\n");
+                    return { name: rec.slice(0, nl), blocks: root.parse(rec.slice(nl + 1)) };
+                });
+                root.loaded();
+            }
+        }
+    }
+
+    Process {
+        id: rmProc
+        onExited: root.refresh()
+    }
+
+    function selftest(): string {
+        const b = root.parse("Intro line\nstill intro\n  cmd one\n  cmd two\n\nNext para\n  cmd three\n");
+        if (b.length !== 4 || b[0].cmd || b[0].text !== "Intro line\nstill intro" ||
+            !b[1].cmd || b[1].text !== "cmd one\ncmd two" || b[2].text !== "Next para" ||
+            b[3].text !== "cmd three")
+            return `SELFTEST Steps FAIL: ${JSON.stringify(b)}`;
+        if (root.commands({ blocks: b }) !== "cmd one\ncmd two\ncmd three")
+            return "SELFTEST Steps FAIL: commands";
+        return "SELFTEST Steps PASS";
+    }
+}