feat(web): render web_search/web_fetch output as a web card
Consume the card:'web' result view (structured sources + answer for search, the URL and HTTP status for fetch) the web backend PR added. WebBlock (ui-primitives) draws both kinds via the kind discriminant: a citation list of safe external links (the MarkdownText protocol allowlist, title-or-hostname label), a truncation indicator, a height cap matching TerminalBlock; a fetch summary for the other kind. web-card-model is the single resultView derivation; a keyed WebRow registers under web_search and web_fetch with the card resident under its summary. The generic fallback and the details panel are web-aware. Fixture gains web_search and web_fetch turns for the built-boot snapshot.
This commit is contained in:
Chinesezjc
124
packages/client/ui-primitives/src/WebBlock.module.css
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124
packages/client/ui-primitives/src/WebBlock.module.css
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/* Geometry mirrors CodeBlock/TerminalBlock (12px radius, code-block surface,
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16px vertical margin) so a web card, a terminal card, and a fenced code block
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read as one family. A source list is prose, not aligned output, so it wraps
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normally rather than scrolling horizontally like a terminal card's output. */
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.block {
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--dsl-web-radius: 12px;
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margin: 16px 0;
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padding: 12px 14px;
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color: var(--dsw-alias-label-primary);
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background: var(--dsw-alias-markdown-code-block);
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border-radius: var(--dsl-web-radius);
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}
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/* The provider answer reads as body prose above the citation list; its own
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MarkdownText margins are trimmed so the list sits tight under it. */
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.answer {
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margin-bottom: 8px;
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}
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.answer > :global(div) > :first-child {
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margin-top: 0;
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}
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.answer > :global(div) > :last-child {
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margin-bottom: 0;
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}
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/* The citation list: ordered so each source reads as a numbered reference. */
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.sources {
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margin: 0;
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padding-left: 20px;
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display: flex;
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flex-direction: column;
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gap: 10px;
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}
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.source {
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min-width: 0;
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}
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.sourceLink {
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color: var(--dsw-alias-state-business-primary);
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font-size: 14px;
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line-height: 20px;
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word-break: break-word;
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}
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.sourceLink:hover {
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text-decoration: underline;
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}
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.snippet {
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margin-top: 2px;
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color: var(--dsw-alias-label-secondary);
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font-size: 13px;
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line-height: 19px;
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word-break: break-word;
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}
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.published {
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margin-top: 2px;
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color: var(--dsw-alias-label-tertiary);
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font: var(--dsw-font-xs-13);
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}
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.expand {
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display: block;
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width: 100%;
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padding: 0;
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border: none;
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background-color: transparent;
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color: var(--dsw-alias-label-tertiary);
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cursor: pointer;
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font: inherit;
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text-align: left;
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}
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.expand:hover {
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color: var(--dsw-alias-label-secondary);
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}
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.truncated {
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margin-top: 8px;
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color: var(--dsw-alias-label-tertiary);
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font: var(--dsw-font-xs-13);
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}
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/* The fetch card is a compact summary: the URL over a status/truncation row. */
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.fetch {
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display: flex;
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flex-direction: column;
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gap: 6px;
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}
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.fetchUrl {
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color: var(--dsw-alias-state-business-primary);
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font-family: var(--ds-font-family-code);
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font-size: 13px;
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line-height: 19px;
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word-break: break-all;
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}
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.fetchUrl:hover {
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text-decoration: underline;
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}
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.fetchMeta {
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display: flex;
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align-items: baseline;
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gap: 12px;
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}
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.status {
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color: var(--dsw-alias-label-secondary);
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font: var(--dsw-font-xs-13);
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}
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/* The fetch card's truncation note sits inline beside the status, so it drops
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the search card's top margin. */
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.fetch .truncated {
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margin-top: 0;
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}
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209
packages/client/ui-primitives/src/WebBlock.tsx
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209
packages/client/ui-primitives/src/WebBlock.tsx
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// WebBlock: the surface for a completed web retrieval. One component draws both
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// kinds of the `web` render intent, discriminated by `kind`: a `search` shows an
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// optional provider answer above a citation list of sources (each a safe
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// external link labelled by its title, or its hostname when the provider gave
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// none, with the snippet and publication date below it), and a `fetch` shows a
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// compact retrieval summary (the linked final URL and its HTTP status). Both
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// mark a capped retrieval. Every link is a same-origin-safe external anchor:
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// only http(s) URLs become anchors (target/rel set), the same protocol allowlist
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// MarkdownText applies to untrusted assistant-authored links; an unparseable or
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// non-http URL renders as plain text. Geometry, radius, and fonts mirror
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// CodeBlock/TerminalBlock so a web card reads as one family with them; a long
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// source list caps at maxSources with a head/tail collapse using the same
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// arithmetic as TerminalBlock's output cap.
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import { useCallback, useState } from 'react'
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import clsx from 'clsx'
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import { MarkdownText } from './markdown/MarkdownText.tsx'
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import css from './WebBlock.module.css'
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/**
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* Sources shown before the height cap collapses the middle of a citation list.
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* Matches TerminalBlock's default output budget so both cards cut a long body
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* at the same place; the chat row narrows it through the maxSources prop.
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*/
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export const DEFAULT_WEB_MAX_SOURCES = 16
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/**
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* One citeable source drawn in a search card: the projection of the contract's
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* `WebSource`, with the optional fields kept optional so a provider that
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* returned only a URL still renders (its hostname becomes the label).
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*/
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export interface WebSourceView {
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/** The source URL; becomes a safe external link when it is http(s). */
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url: string
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/** The source title; when absent the URL's hostname labels the link. */
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title?: string | undefined
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/** A short excerpt or summary shown under the link. */
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snippet?: string | undefined
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/** Publication/crawl timestamp, a provider-supplied string shown under the link. */
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publishedAt?: string | undefined
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}
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/** A `web_search` card: an optional answer over a capped citation list. */
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export interface WebSearchBlockProps {
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kind: 'search'
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/** The provider-generated answer, rendered as markdown above the sources. */
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answer?: string | undefined
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/** The cited sources, in provider order. */
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sources: WebSourceView[]
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/** True when the tool cut the source list to its result cap. */
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truncated: boolean
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/** Sources shown before the middle collapses (default {@link DEFAULT_WEB_MAX_SOURCES}). */
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maxSources?: number | undefined
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/** Extra class merged onto the wrapper (callers position; this component draws). */
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className?: string | undefined
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}
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/** A `web_fetch` card: the retrieval summary for one fetched URL. */
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export interface WebFetchBlockProps {
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kind: 'fetch'
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/** The final URL after allowed redirects; becomes a safe external link when http(s). */
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url: string
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/** HTTP status code of the fetched response. */
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statusCode: number
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/** True when the provider or the output cap cut the fetched content. */
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truncated: boolean
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/** Extra class merged onto the wrapper (callers position; this component draws). */
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className?: string | undefined
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}
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/** A completed web retrieval card, discriminated by `kind`. */
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export type WebBlockProps = WebSearchBlockProps | WebFetchBlockProps
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/**
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* The URL to link to, or undefined when the URL must render as plain text. The
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* allowlist is MarkdownText's own for untrusted links: only http(s) becomes a
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* navigable external anchor, so a `javascript:`/`data:`/`file:` URL or an
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* unparseable string never reaches the DOM as an href.
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* @param url - the source or fetch URL, from tool result content.
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* @returns the href to use, or undefined for plain text.
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*/
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function safeHref(url: string): string | undefined {
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try {
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const { protocol } = new URL(url)
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return protocol === 'http:' || protocol === 'https:' ? url : undefined
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} catch {
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return undefined
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}
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}
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/**
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* The link's visible label: the title when the provider gave one, otherwise the
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* URL's hostname, falling back to the raw URL when it does not parse.
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* @param url - the source URL.
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* @param title - the provider title, if any.
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* @returns the label text.
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*/
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function linkLabel(url: string, title: string | undefined): string {
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if (title !== undefined && title !== '') return title
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try {
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return new URL(url).hostname
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} catch {
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return url
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}
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}
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/**
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* A single URL rendered as a safe external anchor, or as plain text when the
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* URL is not an http(s) link.
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* @param props.url - the URL to render.
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* @param props.label - the visible label.
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* @param props.className - class for the anchor or the plain span.
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* @returns the anchor or span element.
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*/
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function SafeLink({ url, label, className }: { url: string; label: string; className?: string | undefined }) {
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const href = safeHref(url)
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if (href === undefined) return <span className={className}>{label}</span>
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return (
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<a className={className} href={href} target="_blank" rel="noopener noreferrer">
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{label}
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</a>
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)
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}
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/**
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* One source row in a search card: the safe link plus its snippet and date.
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* @param props.source - the source to render.
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* @returns the source list item.
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*/
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function SourceItem({ source }: { source: WebSourceView }) {
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return (
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<li className={css.source}>
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<SafeLink url={source.url} label={linkLabel(source.url, source.title)} className={css.sourceLink} />
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{source.snippet !== undefined && source.snippet !== '' && (
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<div className={css.snippet}>{source.snippet}</div>
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)}
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{source.publishedAt !== undefined && source.publishedAt !== '' && (
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<div className={css.published}>{source.publishedAt}</div>
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)}
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</li>
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)
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}
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/**
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* The search card body: the answer over the capped source list.
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* @param props - see {@link WebSearchBlockProps}.
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* @returns the search card element.
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*/
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function WebSearchBlock({ answer, sources, truncated, maxSources = DEFAULT_WEB_MAX_SOURCES, className }: WebSearchBlockProps) {
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const [expanded, setExpanded] = useState(false)
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const onToggle = useCallback(() => { setExpanded(value => !value) }, [])
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const hidden = sources.length - maxSources
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const capped = hidden > 0 && !expanded
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// Same split arithmetic as TerminalBlock's output cap, so a long body's head
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// and tail slices agree between the two cards.
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const headCount = Math.ceil(maxSources / 2)
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const tailCount = maxSources - headCount
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const head = capped ? sources.slice(0, headCount) : sources
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const tail = capped ? sources.slice(sources.length - tailCount) : []
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return (
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<div className={clsx(css.block, className)} data-web="search">
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{answer !== undefined && answer !== '' && (
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<div className={css.answer}><MarkdownText text={answer} /></div>
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)}
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<ol className={css.sources}>
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{head.map((source, index) => <SourceItem key={index} source={source} />)}
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{hidden > 0 && (
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<button
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type="button"
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className={css.expand}
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aria-expanded={expanded}
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aria-label={expanded ? '收起来源' : `展开其余 ${hidden} 条来源`}
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onClick={onToggle}
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>
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{expanded ? '收起' : `… 其余 ${hidden} 条来源`}
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</button>
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)}
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{tail.map((source, index) => <SourceItem key={sources.length - tailCount + index} source={source} />)}
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</ol>
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{truncated && <div className={css.truncated}>来源列表已截断</div>}
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</div>
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)
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}
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/**
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* The fetch card body: the linked URL and its HTTP status.
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* @param props - see {@link WebFetchBlockProps}.
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* @returns the fetch card element.
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*/
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function WebFetchBlock({ url, statusCode, truncated, className }: WebFetchBlockProps) {
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return (
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<div className={clsx(css.block, css.fetch, className)} data-web="fetch">
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<SafeLink url={url} label={url} className={css.fetchUrl} />
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<div className={css.fetchMeta}>
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<span className={css.status}>HTTP {statusCode}</span>
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{truncated && <span className={css.truncated}>内容已截断</span>}
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</div>
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</div>
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)
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}
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/**
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* Render a completed web retrieval as a structured card.
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* @param props - see {@link WebBlockProps}; `kind` selects the search or fetch body.
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* @returns the web card element.
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*/
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export function WebBlock(props: WebBlockProps) {
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return props.kind === 'search' ? <WebSearchBlock {...props} /> : <WebFetchBlock {...props} />
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}
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@@ -22,6 +22,8 @@ export { JsonTree } from './JsonTree.tsx'
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export type { JsonTreeProps } from './JsonTree.tsx'
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export { TerminalBlock, DEFAULT_TERMINAL_MAX_LINES } from './TerminalBlock.tsx'
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export type { TerminalBlockProps } from './TerminalBlock.tsx'
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export { WebBlock, DEFAULT_WEB_MAX_SOURCES } from './WebBlock.tsx'
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export type { WebBlockProps, WebSearchBlockProps, WebFetchBlockProps, WebSourceView } from './WebBlock.tsx'
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export { CodeBlock } from './markdown/CodeBlock.tsx'
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export { JsonBlock } from './markdown/JsonBlock.tsx'
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export { MarkdownText } from './markdown/MarkdownText.tsx'
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165
packages/client/ui-primitives/tests/web-block.spec.tsx
Normal file
165
packages/client/ui-primitives/tests/web-block.spec.tsx
Normal file
@@ -0,0 +1,165 @@
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// @vitest-environment jsdom
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// WebBlock: both kinds of the web card. The search card's answer, its citation
|
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// list with the title-or-hostname label fallback and optional snippet/date, the
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// source-list height cap and its expand control, and the truncated indicator;
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// the fetch card's linked URL, status, and truncation. Safe-link attributes on
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// both kinds: an http(s) URL becomes an external anchor (target/rel), any other
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// URL renders as plain text with no href.
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import { afterEach, describe, expect, it } from 'vitest'
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import { cleanup, fireEvent, render } from '@testing-library/react'
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import { DEFAULT_WEB_MAX_SOURCES, WebBlock } from '../src/index.ts'
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import type { WebSourceView } from '../src/index.ts'
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afterEach(cleanup)
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/** `count` sources with sequential hostnames, so the cap slices read distinctly. */
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function sources(count: number): WebSourceView[] {
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return Array.from({ length: count }, (_value, index) => ({
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url: `https://site-${index}.example.com/page`,
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title: `Source ${index}`,
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}))
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}
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describe('WebBlock search card', () => {
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it('renders the answer above the citation list', () => {
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const view = render(<WebBlock kind="search" answer="**Answer** text" sources={sources(2)} truncated={false} />)
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expect(view.getByText('Answer')).toBeTruthy()
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expect(view.getByText('Source 0')).toBeTruthy()
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expect(view.getByText('Source 1')).toBeTruthy()
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})
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it('omits the answer block when there is no answer', () => {
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const view = render(<WebBlock kind="search" sources={sources(1)} truncated={false} />)
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expect(view.container.querySelector('[class^="_answer_"]')).toBeNull()
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const empty = render(<WebBlock kind="search" answer="" sources={sources(1)} truncated={false} />)
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expect(empty.container.querySelector('[class^="_answer_"]')).toBeNull()
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})
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it('labels a source by its title, and by hostname when the title is absent', () => {
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const view = render(<WebBlock kind="search" truncated={false} sources={[
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{ url: 'https://example.com/a', title: 'Titled' },
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{ url: 'https://plain.example.org/b' },
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{ url: 'https://empty.example.net/c', title: '' },
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]} />)
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expect(view.getByText('Titled')).toBeTruthy()
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// No title / empty title: the hostname labels the link.
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expect(view.getByText('plain.example.org')).toBeTruthy()
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expect(view.getByText('empty.example.net')).toBeTruthy()
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})
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it('renders a source as a safe external anchor for an http(s) url', () => {
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const view = render(<WebBlock kind="search" truncated={false} sources={[
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{ url: 'https://example.com/a', title: 'Titled' },
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]} />)
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const anchor = view.getByText('Titled') as HTMLAnchorElement
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expect(anchor.tagName).toBe('A')
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expect(anchor.getAttribute('href')).toBe('https://example.com/a')
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expect(anchor.getAttribute('target')).toBe('_blank')
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expect(anchor.getAttribute('rel')).toBe('noopener noreferrer')
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})
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it('renders a non-http url as plain text with no href, and its raw text label when unparseable', () => {
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const view = render(<WebBlock kind="search" truncated={false} sources={[
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{ url: 'javascript:alert(1)', title: 'Dangerous' },
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{ url: 'not a url' },
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]} />)
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const unsafe = view.getByText('Dangerous')
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expect(unsafe.tagName).toBe('SPAN')
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expect(unsafe.getAttribute('href')).toBeNull()
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// An unparseable url is not a link and cannot yield a hostname, so its raw
|
||||
// text is the label.
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const raw = view.getByText('not a url')
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expect(raw.tagName).toBe('SPAN')
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})
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it('shows a source snippet and publication date when present, and omits them when absent or empty', () => {
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const view = render(<WebBlock kind="search" truncated={false} sources={[
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{ url: 'https://a.example.com', title: 'A', snippet: 'excerpt', publishedAt: '2026-07-01' },
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||||
{ url: 'https://b.example.com', title: 'B', snippet: '', publishedAt: '' },
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||||
{ url: 'https://c.example.com', title: 'C' },
|
||||
]} />)
|
||||
expect(view.getByText('excerpt')).toBeTruthy()
|
||||
expect(view.getByText('2026-07-01')).toBeTruthy()
|
||||
// The empty-string and absent arms both draw nothing beyond the link.
|
||||
expect(view.container.querySelectorAll('[class^="_snippet_"]')).toHaveLength(1)
|
||||
expect(view.container.querySelectorAll('[class^="_published_"]')).toHaveLength(1)
|
||||
})
|
||||
|
||||
it('shows the truncated indicator only when the list was capped by the tool', () => {
|
||||
const on = render(<WebBlock kind="search" sources={sources(1)} truncated />)
|
||||
expect(on.getByText('来源列表已截断')).toBeTruthy()
|
||||
cleanup()
|
||||
const off = render(<WebBlock kind="search" sources={sources(1)} truncated={false} />)
|
||||
expect(off.queryByText('来源列表已截断')).toBeNull()
|
||||
})
|
||||
|
||||
it('renders every source and no expand control under the cap', () => {
|
||||
const view = render(<WebBlock kind="search" sources={sources(4)} truncated={false} maxSources={4} />)
|
||||
expect(view.container.querySelectorAll('[class^="_source_"]')).toHaveLength(4)
|
||||
expect(view.container.querySelector('[aria-expanded]')).toBeNull()
|
||||
})
|
||||
|
||||
it('slices head and tail over the cap and expands on click', () => {
|
||||
const view = render(<WebBlock kind="search" sources={sources(10)} truncated={false} maxSources={4} />)
|
||||
// maxSources 4: head = ceil(4/2) = 2, tail = 4 - 2 = 2, 6 hidden.
|
||||
expect([...view.container.querySelectorAll('[class^="_sourceLink_"]')].map(n => n.textContent))
|
||||
.toEqual(['Source 0', 'Source 1', 'Source 8', 'Source 9'])
|
||||
const toggle = view.getByRole('button', { name: '展开其余 6 条来源' })
|
||||
expect(toggle.getAttribute('aria-expanded')).toBe('false')
|
||||
expect(toggle.textContent).toBe('… 其余 6 条来源')
|
||||
|
||||
fireEvent.click(toggle)
|
||||
expect(view.container.querySelectorAll('[class^="_source_"]')).toHaveLength(10)
|
||||
const collapse = view.getByRole('button', { name: '收起来源' })
|
||||
expect(collapse.getAttribute('aria-expanded')).toBe('true')
|
||||
expect(collapse.textContent).toBe('收起')
|
||||
|
||||
fireEvent.click(collapse)
|
||||
expect(view.container.querySelectorAll('[class^="_source_"]')).toHaveLength(4)
|
||||
})
|
||||
|
||||
it('renders the head slice alone when the cap leaves no tail', () => {
|
||||
const view = render(<WebBlock kind="search" sources={sources(5)} truncated={false} maxSources={1} />)
|
||||
expect([...view.container.querySelectorAll('[class^="_sourceLink_"]')].map(n => n.textContent)).toEqual(['Source 0'])
|
||||
expect(view.getByRole('button', { name: '展开其余 4 条来源' })).toBeTruthy()
|
||||
})
|
||||
|
||||
it('caps at the documented default when maxSources is absent', () => {
|
||||
const view = render(<WebBlock kind="search" sources={sources(DEFAULT_WEB_MAX_SOURCES + 1)} truncated={false} />)
|
||||
expect(view.container.querySelectorAll('[class^="_source_"]')).toHaveLength(DEFAULT_WEB_MAX_SOURCES)
|
||||
expect(view.getByRole('button', { name: '展开其余 1 条来源' })).toBeTruthy()
|
||||
})
|
||||
})
|
||||
|
||||
describe('WebBlock fetch card', () => {
|
||||
it('renders the fetched url as a safe external anchor and its HTTP status', () => {
|
||||
const view = render(<WebBlock kind="fetch" url="https://example.com/page" statusCode={200} truncated={false} />)
|
||||
const anchor = view.getByText('https://example.com/page') as HTMLAnchorElement
|
||||
expect(anchor.tagName).toBe('A')
|
||||
expect(anchor.getAttribute('href')).toBe('https://example.com/page')
|
||||
expect(anchor.getAttribute('target')).toBe('_blank')
|
||||
expect(anchor.getAttribute('rel')).toBe('noopener noreferrer')
|
||||
expect(view.getByText('HTTP 200')).toBeTruthy()
|
||||
})
|
||||
|
||||
it('renders a non-http fetch url as plain text with no href', () => {
|
||||
const view = render(<WebBlock kind="fetch" url="file:///etc/passwd" statusCode={200} truncated={false} />)
|
||||
const label = view.getByText('file:///etc/passwd')
|
||||
expect(label.tagName).toBe('SPAN')
|
||||
expect(label.getAttribute('href')).toBeNull()
|
||||
})
|
||||
|
||||
it('shows the truncated indicator only when the content was cut', () => {
|
||||
const on = render(<WebBlock kind="fetch" url="https://example.com" statusCode={200} truncated />)
|
||||
expect(on.getByText('内容已截断')).toBeTruthy()
|
||||
cleanup()
|
||||
const off = render(<WebBlock kind="fetch" url="https://example.com" statusCode={200} truncated={false} />)
|
||||
expect(off.queryByText('内容已截断')).toBeNull()
|
||||
})
|
||||
|
||||
it('carries a non-200 status verbatim', () => {
|
||||
const view = render(<WebBlock kind="fetch" url="https://example.com/missing" statusCode={404} truncated={false} />)
|
||||
expect(view.getByText('HTTP 404')).toBeTruthy()
|
||||
})
|
||||
})
|
||||
Reference in New Issue
Block a user