jochen
838a6e510b
Research 026/04 counted two plain dmenu calls failing with dmenu installed nowhere. Measured, they are one line on each workstation: dunst's `dmenu = /usr/bin/dmenu -p dunst:`. Installing the package fixes both by existing; the line stays the dunst module's. No claim: node-launcher is not in the controller's seat table yet, and the module says so. Two Go tools: menu, shaped like that seat's verb (chosen line, index, typed, cancelled, timed out within 25 s), and session.
71 lines
2.7 KiB
Go
71 lines
2.7 KiB
Go
// The dmenu module's tool (novox/hq research 026/04, 026/05): show the operator a menu of choices in
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// the graphical session and answer the one chosen — the dmenu-compatible command as a tool. A Go
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// bundle the node's runtime launches over stdio (ADR 0188, ADR 0193). It runs as the operator account
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// and reaches the account's X session as session.go finds it; with no session, it says so.
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package main
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import (
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"fmt"
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"os"
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stdio "git.novox.be/novox/mesh-sdk/go"
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)
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var providedBy = map[string]string{
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"dmenu": "the dmenu package, which this module installs",
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}
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func main() {
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if err := stdio.Serve("", tools()); err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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}
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func tools() []stdio.Tool {
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return []stdio.Tool{
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{
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Name: "dmenu_menu",
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Description: "Show the operator a menu of choices on their screen and answer the line chosen, its index, or " +
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"that the menu was dismissed or not answered in time (default 20 s, at most 25). The operator may also " +
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"type a line that is not a choice. Needs the operator's graphical session. (d)",
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Input: map[string]any{
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"choices": map[string]any{"type": "array", "items": map[string]any{"type": "string"}, "description": "the lines to choose from, at most 1000, none with a line break"},
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"prompt": map[string]any{"type": "string", "description": "a prompt shown left of the input"},
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"lines": map[string]any{"type": "integer", "description": "show the choices as a vertical list of this many lines (default 0: one horizontal line; at most 40)"},
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"case_insensitive": map[string]any{"type": "boolean", "description": "match what is typed regardless of case (default true)"},
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"timeout_seconds": map[string]any{"type": "integer", "description": "close the menu unanswered after this long (default 20, at most 25)"},
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},
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Run: func(args map[string]any) (any, error) {
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choices, err := optList(args, "choices")
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if err != nil {
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return nil, err
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}
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prompt, err := optText(args, "prompt", "")
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if err != nil {
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return nil, err
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}
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n, err := optWhole(args, "lines", 0, 0, 40)
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if err != nil {
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return nil, err
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}
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ci, err := optFlag(args, "case_insensitive", true)
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if err != nil {
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return nil, err
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}
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timeout, err := optWhole(args, "timeout_seconds", 20, 1, MostWait)
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if err != nil {
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return nil, err
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}
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return Menu(Ask{Choices: choices, Prompt: prompt, Lines: n, CaseInsensitive: ci, Timeout: timeout})
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},
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},
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{
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Name: "dmenu_session",
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Description: "Which X session the menu would appear in and how it was found, or why there is none; and dmenu's version. (r)",
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Input: map[string]any{},
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Run: func(map[string]any) (any, error) { return SessionCheck() },
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},
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}
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}
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