feat: F4.6g4 the Gnutella window, measured against Java's
GnutellaWindowRun uses Java's Gnutella window on terminal-net beside the line of GnutellaRun's story "search". The core cancels a search as Java does (every connection of the program's own requests closed, passed-on queries kept), lets the number of peers change and lists /peer2peer's files; the room takes the window's actions and sends its view; the editor shows Java's four tabs with Java's symbols. Not adopted from Java: a number of peers of one digit only, a results table that keeps the last search's rows, a files table that lags behind the folder. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Claude Opus 5.5
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// A computer's Gnutella program, after Java's
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// GUIApplicationPeerToPeerAnwendungWindow (measured with tools/java-oracle's
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// GnutellaWindowRun): four tabs with Java's symbols. "Netzwerk": a peer's
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// address (it starts as Java's, 192.168.0.1; red while it is no address)
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// with "Netz beitreten", the table of known peers, "Netz verlassen".
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// "Suche": the words with "Suchen" and "Stopp!", the table of results (a row
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// chosen), "Herunterladen" and "Liste leeren". "Dateien": the files of
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// /peer2peer. "Einstellungen": how many peers it keeps at most, with
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// "Speichern". The program is the room's: the panel shows its view and hands
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// over what is done.
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//
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// Better than Java:
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// - the tables show what the program keeps at once: Java's results still
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// show the last search's after a new one until a hit comes, and its files
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// only what was there when the program last told the window of a change.
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// - any whole number of peers is taken (Java's check takes one digit only).
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// - what is not taken is said under its field (Java opens a dialog), and
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// "Herunterladen" can be pressed only with a result chosen.
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import { useEffect, useState } from 'react';
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import { gnutellaPeerCountOfText, IP_ADDRESS_PATTERN } from '@mdg-filius/core';
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import type { GnutellaView } from '@mdg-filius/protocol';
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import networkIcon from '../assets/desktop/peertopeer_netzwerk_klein.png';
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import searchIcon from '../assets/desktop/peertopeer_suchen_klein.png';
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import filesIcon from '../assets/desktop/peertopeer_dateien_klein.png';
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import settingsIcon from '../assets/desktop/peertopeer_einstellungen.png';
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import { useTranslate } from '../i18n/i18n.js';
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import type { Simulation } from '../simulation/useSimulation.js';
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type Tab = 'network' | 'search' | 'files' | 'settings';
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const TABS: readonly (readonly [Tab, string, string])[] = [
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['network', 'gnutella.networkTab', networkIcon],
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['search', 'gnutella.searchTab', searchIcon],
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['files', 'gnutella.filesTab', filesIcon],
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['settings', 'gnutella.settingsTab', settingsIcon],
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];
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export function GnutellaPanel({ node, simulation }: { readonly node: string; readonly simulation: Simulation }) {
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const t = useTranslate();
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const topic = `app:${node}/gnutella` as const;
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const { watch, act } = simulation;
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useEffect(() => watch([topic]), [watch, topic]);
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const view = simulation.views.get(topic) as GnutellaView | null | undefined;
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const [tab, setTab] = useState<Tab>('network');
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const [address, setAddress] = useState('192.168.0.1');
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const [criteria, setCriteria] = useState('');
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const [chosen, setChosen] = useState<number | null>(null);
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const [maximum, setMaximum] = useState<string | null>(null);
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const [notice, setNotice] = useState<string | null>(null);
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const results = JSON.stringify(view?.results ?? []);
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// Java's table is filled anew with each change and loses its choice.
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useEffect(() => setChosen(null), [results]);
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if (view === null || view === undefined) return <div className="web-server" />;
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const addressValid = IP_ADDRESS_PATTERN.test(address);
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const maximumText = maximum ?? String(view.maximumKnownPeers);
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const count = gnutellaPeerCountOfText(maximumText);
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const join = () => {
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if (!addressValid) {
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setNotice(t('gnutella.invalidAddress'));
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return;
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}
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act(node, 'gnutella', 'join', { address });
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setNotice(null);
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};
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const search = () => act(node, 'gnutella', 'search', { criteria });
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const save = () => {
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if (count === undefined) {
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setNotice(t('gnutella.onlyNumbers'));
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return;
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}
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act(node, 'gnutella', 'setMaximumPeers', { count });
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setMaximum(null);
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setNotice(null);
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};
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const noticeLine =
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notice === null ? null : (
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<p className="mail-notice" role="alert">
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{notice}
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</p>
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);
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return (
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<div className="web-server gnutella">
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<div className="mail-tabs" role="tablist">
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{TABS.map(([each, label, icon]) => (
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<button
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key={each}
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type="button"
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role="tab"
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aria-selected={tab === each}
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onClick={() => {
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setTab(each);
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setNotice(null);
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}}
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>
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<img src={icon} alt="" />
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{t(label)}
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</button>
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))}
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</div>
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{tab === 'network' ? (
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<div className="gnutella-page" role="tabpanel" aria-label={t('gnutella.networkTab')}>
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<div className="web-server-bar">
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<label>
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{t('gnutella.address')}
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<input
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value={address}
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inputMode="decimal"
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autoCapitalize="off"
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autoCorrect="off"
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spellCheck={false}
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aria-invalid={addressValid ? undefined : 'true'}
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onChange={(event) => {
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setAddress(event.target.value);
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setNotice(null);
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}}
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onKeyDown={(event) => event.key === 'Enter' && join()}
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/>
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</label>
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<button type="button" title={t('gnutella.joinHint')} onClick={join}>
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{t('gnutella.join')}
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</button>
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</div>
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{noticeLine}
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<p className="gnutella-label">{t('gnutella.neighbours')}</p>
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<table className="dns-server-table gnutella-table" aria-label={t('gnutella.neighbours')}>
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<thead>
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<tr>
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<th>{t('gnutella.number')}</th>
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<th>{t('gnutella.addressColumn')}</th>
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</tr>
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</thead>
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<tbody>
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{view.peers.map((peer, index) => (
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<tr key={peer}>
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<td>{index + 1}</td>
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<td>{peer}</td>
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</tr>
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))}
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</tbody>
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</table>
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<div className="web-server-bar">
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<button type="button" title={t('gnutella.leaveHint')} onClick={() => act(node, 'gnutella', 'leave')}>
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{t('gnutella.leave')}
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</button>
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</div>
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</div>
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) : tab === 'search' ? (
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<div className="gnutella-page" role="tabpanel" aria-label={t('gnutella.searchTab')}>
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<div className="web-server-bar">
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<label>
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{t('gnutella.searchTerm')}
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<input
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value={criteria}
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title={t('gnutella.searchHint')}
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autoCapitalize="off"
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autoCorrect="off"
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spellCheck={false}
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onChange={(event) => setCriteria(event.target.value)}
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onKeyDown={(event) => event.key === 'Enter' && search()}
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/>
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</label>
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<button type="button" onClick={search}>
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{t('gnutella.search')}
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</button>
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<button type="button" title={t('gnutella.stopHint')} onClick={() => act(node, 'gnutella', 'cancelSearch')}>
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{t('gnutella.stop')}
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</button>
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</div>
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<table className="dns-server-table gnutella-table" aria-label={t('gnutella.searchTab')}>
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<thead>
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<tr>
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<th>{t('gnutella.resultAddress')}</th>
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<th>{t('gnutella.resultName')}</th>
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<th>{t('gnutella.resultSize')}</th>
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</tr>
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</thead>
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<tbody>
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{view.results.map((cells, row) => (
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<tr
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key={row}
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tabIndex={0}
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aria-selected={row === chosen}
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onPointerDown={() => setChosen(row)}
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onKeyDown={(event) => {
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if (event.key !== 'Enter' && event.key !== ' ') return;
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event.preventDefault();
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setChosen(row);
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}}
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>
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{cells.map((cell, column) => (
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<td key={column}>{cell}</td>
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))}
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</tr>
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))}
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</tbody>
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</table>
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<div className="web-server-bar">
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<button type="button" title={t('gnutella.downloadHint')} disabled={chosen === null} onClick={() => chosen !== null && act(node, 'gnutella', 'download', { row: chosen })}>
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{t('gnutella.download')}
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</button>
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<button type="button" title={t('gnutella.clearHint')} onClick={() => act(node, 'gnutella', 'clearResults')}>
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{t('gnutella.clear')}
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</button>
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</div>
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</div>
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) : tab === 'files' ? (
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<div className="gnutella-page" role="tabpanel" aria-label={t('gnutella.filesTab')}>
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<p className="gnutella-label">{t('gnutella.files')}</p>
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<table className="dns-server-table gnutella-table" aria-label={t('gnutella.filesTab')}>
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<thead>
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<tr>
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<th>{t('gnutella.fileName')}</th>
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<th>{t('gnutella.fileType')}</th>
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</tr>
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</thead>
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<tbody>
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{view.files.map(([name, type]) => (
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<tr key={name}>
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<td>{name}</td>
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<td>{type}</td>
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</tr>
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))}
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</tbody>
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</table>
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</div>
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) : (
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<div className="gnutella-page" role="tabpanel" aria-label={t('gnutella.settingsTab')}>
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<div className="web-server-bar">
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<label>
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{t('gnutella.maximum')}
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<input
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value={maximumText}
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inputMode="numeric"
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aria-invalid={count === undefined ? 'true' : undefined}
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onChange={(event) => {
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setMaximum(event.target.value);
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setNotice(null);
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}}
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onKeyDown={(event) => event.key === 'Enter' && save()}
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/>
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</label>
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<button type="button" onClick={save}>
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{t('gnutella.save')}
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</button>
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</div>
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{noticeLine}
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</div>
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)}
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</div>
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);
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}
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