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a tool for shared writing and social publishing
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109import { useEntity } from "src/replicache";import { ImageAltModal } from "./ImageAltModal";import { EditTiny } from "components/Icons/EditTiny";import { useState } from "react";import { useSpring, animated } from "@react-spring/web";import useMeasure from "react-use-measure";import { AltTextBody, ReadOnlyAltText } from "./ReadOnlyAltText";
// Overlaid on an image; visible on hover (within a `group/image`), while the// containing block is selected, or whenever alt text already exists. Opens the// alt-text modal. Shared by ImageBlock and the image gallery.// Readers (canEdit === false) get only the "ALT" toggle to reveal existing alt// text — the edit/add-alt trigger is hidden.export function ImageAltButton(props: { entityID: string; selected: boolean; canEdit?: boolean; className?: string; onSeeMore?: () => void; placeholder?: string;}) { let canEdit = props.canEdit ?? true; let alt = useEntity(props.entityID, "image/alt")?.data.value; let hasAlt = !!alt; let imageSize = useEntity(props.entityID, "image/max-width")?.data.value; let [showAlt, setShowAlt] = useState(false); let [altRef, { height: altHeight }] = useMeasure(); let altStyle = useSpring({ height: showAlt ? altHeight : 0, opacity: showAlt ? 1 : 0, config: { tension: 450, friction: 30, clamp: true }, });
// Readers have nothing to interact with when there's no alt text. if (!canEdit && !hasAlt) return null; // Readers get the plain ALT pill + preview, shared with published posts. if (!canEdit) return ( <ReadOnlyAltText alt={alt ?? ""} className={props.className} onSeeMore={props.onSeeMore} /> ); return ( <div // Hide the alt preview only when focus leaves the whole group — moving // focus between siblings (e.g. ALT button → Edit trigger) keeps it open // so the trigger's click isn't swallowed by an early close. relatedTarget // is briefly null mid-handoff, so check where focus actually settled. onBlur={(e) => { let group = e.currentTarget; requestAnimationFrame(() => { if (!group.contains(document.activeElement)) setShowAlt(false); }); }} className={`imageAltButton absolute bottom-1.5 right-1.5 left-1.5 transition-opacity flex flex-col h-fit ${ props.selected || hasAlt ? "opacity-100" : "opacity-0 group-hover/image:opacity-100" } ${props.className || ""}`} > <div className="flex gap-1 items-center justify-end"> {canEdit && ( <ImageAltModal trigger={ <div aria-label="Edit alt text" // Keep focus on the ALT button through the click so the preview // doesn't blur-close and reflow the buttons mid-click. onMouseDown={(e) => e.preventDefault()} className={`hover:cursor-pointer opaque-container border-2! border-secondary! rounded-md! h-5 text-secondary`} > {hasAlt ? ( <EditTiny /> ) : ( <div className="text-xs font-bold px-1 leading-tight w-max"> {imageSize && imageSize < 100 ? "+ ALT" : "ADD ALT"} </div> )} </div> } entityID={props.entityID} placeholder={props.placeholder} title={hasAlt ? "Edit Alt Text" : "Add Alt Text"} /> )} {hasAlt && ( <button onMouseDown={(e) => { e.stopPropagation(); setShowAlt((s) => !s); }} > <div className="text-xs font-bold px-1 leading-tight opaque-container border-2! border-secondary! text-secondary rounded-md! h-5"> ALT </div> </button> )} </div> <animated.div style={{ ...altStyle, overflow: "hidden" }}> <div className="pt-1" ref={altRef}> <AltTextBody alt={alt ?? ""} onSeeMore={props.onSeeMore} /> </div> </animated.div> </div> );}