| 1 | import { mediaKindFromPath } from "@t3tools/shared/filePreview"; |
| 2 | import { mediaUrlReference } from "@t3tools/client-runtime/media-reference"; |
| 3 | import type { ExpandedImageItem, ExpandedImagePreview } from "./ExpandedImagePreview"; |
| 4 | import { resolveExternalWebLinkHost } from "./externalLinkContextMenu"; |
| 5 | import { resolveProtocolRelativeMediaUrl } from "../media/mediaContent"; |
| 6 | |
| 7 | // Weak keys retain resolved media actions only while the rendered image is reachable. |
| 8 | export const markdownImageItems = new WeakMap<Element, ExpandedImageItem>(); |
| 9 | |
| 10 | /** Collect in document order only when opened, including PR sections separated by videos. */ |
| 11 | export function markdownImageGallery( |
| 12 | element: Element, |
| 13 | selected: ExpandedImageItem, |
| 14 | ): ExpandedImagePreview { |
| 15 | const scope = element.closest("[data-image-gallery]") ?? element.closest(".chat-markdown"); |
| 16 | const images: ExpandedImageItem[] = []; |
| 17 | let index = -1; |
| 18 | for (const image of scope?.querySelectorAll("img") ?? []) { |
| 19 | const registered = markdownImageItems.get(image); |
| 20 | if (!registered) continue; |
| 21 | const link = image.closest("a"); |
| 22 | const href = link?.getAttribute("href") ?? ""; |
| 23 | if (link && mediaKindFromPath(href) !== "image") continue; |
| 24 | const linkedSource = |
| 25 | resolveExternalWebLinkHost(href) !== null ? resolveProtocolRelativeMediaUrl(href) : null; |
| 26 | const reference = mediaUrlReference(href); |
| 27 | const item = linkedSource |
| 28 | ? { |
| 29 | ...registered, |
| 30 | src: linkedSource, |
| 31 | originalUrl: href, |
| 32 | actionsSource: { |
| 33 | kind: "image" as const, |
| 34 | name: registered.name, |
| 35 | src: linkedSource, |
| 36 | ...(reference ? { reference } : {}), |
| 37 | }, |
| 38 | } |
| 39 | : registered; |
| 40 | if ( |
| 41 | image === element || |
| 42 | (!markdownImageItems.has(element) && index < 0 && item.src === selected.src) |
| 43 | ) { |
| 44 | index = images.length; |
| 45 | images.push(selected); |
| 46 | } else { |
| 47 | images.push(item); |
| 48 | } |
| 49 | } |
| 50 | return index < 0 ? { images: [selected], index: 0 } : { images, index }; |
| 51 | } |