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ComfyAssets-ComfyUI_PromptM…/tests/browser/concept-inventory.mjs
T
Vito 762669758b feat(history): concept gallery cards, history comparison and CSS retirement (#266)
* feat(history): concept shared gallery

The history page's gallery is the concept's section.history-gallery with its
panel heading (Shared gallery, <name> · same positive prompt) and the Images
media cards, followed by the recorded executions. A saved variant with no
images shows the concept's empty copy. Recorded as D47.

* feat(history): drop the shared gallery's Linked images caption (D47 ruling)

The concept's "Shared gallery" heading is the gallery's only heading: the
embedded collection's "Linked images" heading and "N loaded · N linked
images" count repeated it. mountImages gains caption: false and a
focusTarget; only the history page's shared gallery passes them, so the
Images page and the All images and Repeat run dialogs keep their caption.
The layout row and the selected-image side panel stay (TESTING.md D47).

* test(history): concept comparison for prompt history

history-concept.spec.mjs compares the Prompt history with the concept's
#prompt/alpine on the concept fixture at 1600x1100 and 390x844, both
themes and motion settings, on Chromium and touch, with its behaviors
in both documents and a mutation check. inventoryOf gains a history
section; mapHistoryConcept applies D24, D35, D45, D46, D47 and the
approved Show archived button, laying the concept out at runtime.

Corrections it demonstrated: each compared negative mounts in a
display: contents child of the concept's .compare-item (D25), and the
concept fixture now links images oldest first and counts one pair use
per image, so newest-first reads and lane run counts match the concept.
history-canonical-comparison.mjs uses the concept's selectors for
production and drops its closed polish entries.

* feat(history): drop the Linked images caption from the history dialogs (D47 ruling)

The maintainer extended the D47 trim to the history page's two media
dialogs. All images for this positive and Repeat run are named by their
own dialog title, as in the concept (app.js a1282-1304), so their
embedded collection no longer shows the "Linked images" heading or the
"N loaded · N linked images" count. A stranded focus returns to the
dialog's close button. The Images page keeps its caption.

The history concept comparison now records each dialog's caption count
in both documents, and TESTING.md D47 covers the dialogs.

* refactor(workspace): retire library.css and the interim page guards

Every page is rebuilt, so the rules that waited for PRs D, E and F go.
library.css is deleted with its link; the overlay is now the only
stylesheet after concept.css.

Deleted because the concept already draws them: the .library-grid
tracks and breakpoints, the history .row-actions flex row and button
size, summary cursors, h2 margins, and the sender and Recorded run
dialogs' colors and border. Deleted because they had no effect:
min-inline-size on block children, a .recorded-run-dialog pre limit,
the general .prompt-inspector margin (now scoped to the Recorded run
dialog, the only mount point that is not display: contents) and a 700px
padding a later rule overrode. The duplicated sender and Recorded run
dialog guards are merged into one rule each.

Kept with a marker: windowed Library rows (D3), the shelf states (D40),
the history panel's wrap, archived-lane and coarse-target rules (D45),
and under the new D48 the production surfaces the concept never shows:
recorded executions and the Recorded run dialog (#209, D26), the
Archive negative confirmation (#235) and the prompt sender. They now use
the concept's --green and --red tokens instead of private copies with
the same values.

The workspace browser specs on Chromium and the concept specs on touch
pass unchanged. TESTING.md records D48 and closes the role-block gap.

* refactor(workspace): drop the dead embedded caption and tighten the review guards

- images.mjs: an embedded collection never has a caption (D47), so the
  caption option, its "Linked images" heading, the embedded count string
  and the heading arm of the focus fallback are removed; callers no
  longer pass caption:false. Behavior is unchanged.
- workspace.css: delete the never-applied .recorded-run-dialog::backdrop
  rule (the concept's .ca-tools dialog::backdrop always won) and note that
  the D3 row's min-inline-size: 0 is load-bearing for the concept's
  <=700px 1fr track.
- concept-css test: the waiting-rule guard is case-insensitive and is
  proven against the exact retired comments and the kept provenance labels.
- history-concept spec: function replacement for the singular run label,
  and the DOM mutation removes Compare negatives by role.
- D47 markers sit where the caption trim happens.
2026-10-21 05:16:38 -07:00

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// Shared concept-vs-production inventory for the mock-true rebuild (#249, spec §7). One in-page measurer runs the
// same concept selectors in the immutable concept (/__test__/canonical/workspace) and in production, which now renders
// the concept's classes. The concept is never rewritten: each page's map<Page>Concept(reference) applies only the
// recorded spec-§8 deviations, each commented with its D-number, and diffInventory must then report nothing.
import {expect} from '../../tools/vendor/node_modules/@playwright/test/index.mjs';
export {diffInventory} from './library-editor-canonical-comparison.mjs';
export const CONCEPT_URL='/__test__/canonical/workspace';
export const PRODUCTION_URL='/prompt_manager/workspace';
export const SIZES=Object.freeze([[1600,1100],[390,844]]);
export const THEMES=Object.freeze(['dark','light']);
export const MOTIONS=Object.freeze(['no-preference','reduce']);
/** D35: production uses the singular for exactly one; the concept's plurals are hard-coded (app.js 447, 489, 517-521). */
export const countCopy=text=>text.replace(/(^|\D)1 positive prompts\b/g,'$11 positive prompt')
.replace(/(^|\D)1 more images\b/g,'$11 more image').replace(/(^|\D)1 images\b/g,'$11 image');
/**
* The row's flex lines laid out again from the concept's own item boxes, in order: an item breaks to a new line when its
* hypothetical size (`flex-basis: 100%` → the row; a growing item → its min-width; otherwise its box) no longer fits
* after the line's items and gaps; a growing item (the search field, `flex: 1`) takes its line's free space; items pack
* from the start and centre in their line (`align-items: center`). The test proves this model on the concept rows first.
*/
export function reflow(row,items) {
const gap=parseFloat(row.columnGap)||0,rowGap=parseFloat(row.rowGap)||0;
// The unrounded boxes (`exact`); rounding happens once, on the result.
const rowWidth=row.exact?.width??row.width;
const exact=item=>item.exact??{left:item.left,width:item.width};
const grows=item=>parseFloat(item.flexGrow)>0;
const basis=item=>item.flexBasis==='100%'?rowWidth:grows(item)?parseFloat(item.minWidth)||0:exact(item).width;
const lines=[];
const order=row.items.filter(entry=>entry.shown);
for(const item of items.filter(entry=>entry.shown)) {
const line=lines.at(-1),used=line?line.reduce((sum,entry)=>sum+basis(entry)+gap,0):0;
// The slack is one layout unit (1/60px in Firefox), which float sums of the browser's boxes may exceed.
if(line&&used+basis(item)<=rowWidth+1/60)line.push(item);else lines.push([item]);
}
const placed=new Map();let top=0;
const sameLine=(a,b)=>a.top<b.top+b.height&&b.top<a.top+a.height;
const freeOf=line=>rowWidth-line.reduce((sum,item)=>sum+basis(item),0)-gap*(line.length-1);
for(const line of lines) {
const free=freeOf(line);
const growing=line.filter(grows);
const height=Math.max(...line.map(item=>item.height));
let x=0,previous=null;
for(const item of line) {
// A growing item keeps its concept width plus the space its line gained.
const width=growing.includes(item)?exact(item).width+(free-freeOf(order.filter(entry=>sameLine(entry,item))))/growing.length:exact(item).width;
// An item that followed the same neighbour on the same line in the concept keeps the concept's own spacing,
// moved by however much that neighbour grew; otherwise it follows the previous box and the gap.
const adjacent=previous&&order.indexOf(item)===order.indexOf(previous)+1&&sameLine(item,previous);
const before=previous&&placed.get(previous);
const left=line.indexOf(item)===0?0:adjacent?before.left+exact(item).left-exact(previous).left+before.width-exact(previous).width:x;
placed.set(item,{left,width,top:Math.round(top+(height-item.height)/2)});
x=left+width+gap;previous=item;
}
top+=height+rowGap;
}
const moved=item=>{
const box=placed.get(item);
if(!box)return item;
const grown=box.width-exact(item).width;
return {...item,left:Math.round(box.left),top:box.top,width:Math.round(box.width),
input:item.input&&{...item.input,width:Math.round((item.input.exact?.width??item.input.width)+grown)}};
};
return {...row,height:Math.round(top-rowGap),items:items.map(moved)};
}
/** A flex row without the items `isRemoved` picks; the remaining items flow again from the concept's boxes. */
export function withoutItems(row,isRemoved) {
return reflow(row,row.items.filter(item=>!isRemoved(item)));
}
/** Seed the concept-shaped real fixture (tests/browser/workspace_concept_fixture.py) and return its manifest. */
export async function seedConcept(request,data={}) {
const response=await request.post('/__test__/concept/reset',{data});
await expect(response).toBeOK();
return response.json();
}
async function selectTheme(page,theme) {
await page.getByRole('combobox',{name:'Theme',exact:true}).selectOption(theme);
}
/** The concept at `#<route>` with its own Theme select. */
export async function openConcept(page,route,theme,motion='no-preference') {
await page.emulateMedia({reducedMotion:motion});
await page.goto('about:blank');await page.goto(`${CONCEPT_URL}#${route}`);
await selectTheme(page,theme);
await expect(page.locator('#main #page-title')).toBeVisible();
}
/** Production at `#/<route>` with the D4 Theme select, once the sidebar's real counts (D27) have settled. */
export async function openProduction(page,route,theme,motion='no-preference') {
await page.emulateMedia({reducedMotion:motion});
await page.goto('about:blank');await page.goto(`${PRODUCTION_URL}#/${route}`);
await selectTheme(page,theme);
await expect(page.locator('#workspace-main #page-title')).toBeVisible();
await expect(page.locator('#primary-nav .nav-count')).toHaveCount(3);
}
/** Computed outline of the focused element, after keyboard focus so `:focus-visible` applies. */
export async function focusRingOf(locator) {
return locator.evaluate(node=>{const style=getComputedStyle(node);return {focused:document.activeElement===node,
visible:node.matches(':focus-visible'),outlineStyle:style.outlineStyle,outlineWidth:style.outlineWidth,
outlineColor:style.outlineColor,outlineOffset:style.outlineOffset};});
}
/** Computed colors of an element while the pointer rests on it; the pointer is parked again afterwards. */
export async function hoverStateOf(page,locator) {
await locator.hover();
const state=await locator.evaluate(node=>{const style=getComputedStyle(node);return {hovered:node.matches(':hover'),
color:style.color,backgroundColor:style.backgroundColor,borderTopColor:style.borderTopColor,
textDecorationLine:style.textDecorationLine,boxShadow:style.boxShadow};});
await page.mouse.move(0,0);
return state;
}
/**
* Mutate the open page so a comparison can be shown to notice a change (the A7 mutation check): `css` is appended as
* the last stylesheet, so it wins over equally specific concept rules, and every element matching a `remove` selector
* is detached. Returns an async undo that restores the stylesheet and the removed elements in place.
*/
export async function mutate(page,{css=null,remove=[]}={}) {
const token=await page.evaluate(({css,remove})=>{
const token=`mutation-${Math.random().toString(36).slice(2)}`;
const undo=[];
if(css) {
const style=document.createElement('style');style.dataset.mutation=token;style.textContent=css;
document.head.append(style);undo.push(()=>style.remove());
}
for(const selector of remove) {
const nodes=[...document.querySelectorAll(selector)];
if(!nodes.length)throw new Error(`mutate: nothing matches ${selector}`);
for(const node of nodes) {
const parent=node.parentNode,next=node.nextSibling;
node.remove();undo.push(()=>parent.insertBefore(node,next));
}
}
(window.__conceptMutations??=new Map()).set(token,undo);
return token;
},{css,remove});
return ()=>page.evaluate(token=>{
const undo=window.__conceptMutations?.get(token);
if(!undo)throw new Error('mutate: this mutation was already undone or the page reloaded');
undo.reverse().forEach(step=>step());window.__conceptMutations.delete(token);
},token);
}
/**
* Inventory sections: {chrome, heading, toolbar, filterRow, bulkbar, caption, grid, cards, continuation, panel, library,
* history, noPageScroll}. A section is null when its element is absent. The Images sections (toolbar … panel, #249 C7)
* measure the concept's Images markup; `cards` holds the first six; `bulkbar` is the selection bar's place and, while
* anything is checked, its `.bulkbar` row. `library` (#249 E3) holds the Prompt library's toolbar,
* caption, grid, first six cards and whatever follows the grid. `history` (#249 F5) holds the Prompt history's summary,
* negative variants panel, comparison (while Compare negatives is pressed) and the shared gallery's heading.
*/
export function inventoryOf(page,scope='main') {
return page.evaluate(measureInventory,scope);
}
/** The inventory without its `exact` (unrounded) helper values, which only a re-layout reads; compare after this. */
export function stripExact(value) {
if(Array.isArray(value))return value.map(stripExact);
if(value&&typeof value==='object')return Object.fromEntries(Object.entries(value).filter(([key])=>key!=='exact').map(([key,item])=>[key,stripExact(item)]));
return value;
}
/** Runs in the page; self-contained. `scope` selects the page's main element. */
export function measureInventory(scope) {
const px=value=>Math.round(value);
const css=(node,...keys)=>{const style=getComputedStyle(node);return Object.fromEntries(keys.map(key=>[key,style[key]]));};
const shown=node=>Boolean(node)&&node.getClientRects().length>0&&getComputedStyle(node).visibility!=='hidden';
const rect=node=>node.getBoundingClientRect();
const font=node=>css(node,'fontFamily','fontSize','fontWeight','lineHeight','letterSpacing','color','textTransform');
const edges=node=>css(node,'paddingTop','paddingRight','paddingBottom','paddingLeft','marginTop','marginRight','marginBottom','marginLeft',
'borderTopWidth','borderTopStyle','borderTopColor','borderRightWidth','borderRightStyle','borderRightColor',
'borderBottomWidth','borderBottomStyle','borderBottomColor','borderTopLeftRadius','backgroundColor');
const layout=node=>css(node,'display','flexDirection','flexWrap','justifyContent','alignItems','columnGap','rowGap','position');
// Text of a node without its descendants matching `skip` (counts, nested controls), whitespace collapsed.
const textOf=(node,skip)=>{const copy=node.cloneNode(true);if(skip)copy.querySelectorAll(skip).forEach(item=>item.remove());
return copy.textContent.replace(/\s+/g,' ').trim();};
const relative=(node,origin)=>{const a=rect(node),b=rect(origin);return {left:px(a.left-b.left),top:px(a.top-b.top),width:px(a.width),height:px(a.height)};};
const main=document.querySelector(scope);
const sidebar=document.querySelector('aside.sidebar');
const workspace=document.querySelector('.workspace');
function iconOf(node) {
const svg=node.querySelector(':scope > svg.icon');
if(!svg)return null;
const box=rect(svg);
return {width:px(box.width),height:px(box.height),viewBox:svg.getAttribute('viewBox'),hidden:svg.getAttribute('aria-hidden'),
d:svg.querySelector('path')?.getAttribute('d')??null,...css(svg,'strokeWidth','color','verticalAlign','flexShrink')};
}
function navRow(link,index,links) {
const box=rect(link),count=link.querySelector('.nav-count'),icon=link.querySelector(':scope > svg.icon');
const style=getComputedStyle(link);
const content=(icon?rect(icon).width+parseFloat(style.columnGap||0):0)+(()=>{
const range=document.createRange();const text=[...link.childNodes].find(item=>item.nodeType===Node.TEXT_NODE&&item.textContent.trim());
if(!text)return 0;range.selectNodeContents(text);return range.getBoundingClientRect().width;})();
const next=links[index+1];let gapAfter=null;
if(next){const other=rect(next);gapAfter=px(other.top)===px(box.top)?{axis:'x',size:px(other.left-box.right)}:{axis:'y',size:px(other.top-box.bottom)};}
return {text:textOf(link,'.nav-count'),current:link.getAttribute('aria-current'),
...layout(link),...edges(link),...font(link),minHeight:style.minHeight,height:px(box.height),
fullWidth:px(box.width)===px(rect(link.parentElement).width),
hugs:Math.abs(box.width-content-parseFloat(style.paddingLeft)-parseFloat(style.paddingRight))<=1.5,
gapAfter,icon:iconOf(link),
count:count?{text:count.textContent,shown:shown(count),...font(count),...css(count,'marginInlineStart')}:null};
}
// Every subsection is null when its element is missing, so a removed node is reported by its path
// (for example `chrome.breadcrumbs`) instead of failing the measurement.
const when=(node,measure)=>node?measure(node):null;
// The accessible text of a node: its text without aria-hidden descendants.
const accessibleText=node=>textOf(node,'[aria-hidden="true"]');
function itemOf(node,actions) {
const base={tag:node.tagName.toLowerCase(),className:node.className,shown:shown(node)};
if(!base.shown)return base;
const box=relative(node,actions);
return {...base,text:textOf(node,'select, .count'),...font(node),...edges(node),...layout(node),
left:box.left,top:box.top,width:box.width,height:box.height,
count:node.querySelector('.count')?.textContent??null,
select:when(node.querySelector('select'),select=>({options:[...select.options].map(option=>[option.value,option.textContent]),
label:select.getAttribute('aria-label'),labelled:select.labels?.[0]===node,...font(select),...edges(select),
minHeight:getComputedStyle(select).minHeight,width:px(rect(select).width),height:px(rect(select).height)})),
hiddenSuffix:[...node.querySelectorAll('[aria-hidden="true"]')].map(child=>child.textContent).join('')||null,
whiteSpace:getComputedStyle(node).whiteSpace};
}
function sidebarOf() {
return when(sidebar,()=>({...layout(sidebar),...edges(sidebar),
...css(sidebar,'top','overflowY','borderInlineEndWidth'),width:px(rect(sidebar).width),
fillsViewport:Math.abs(rect(sidebar).height-innerHeight)<=1}));
}
function bottomOf(bottom) {
// In the column sidebar the bottom group is pinned to the end by `margin-top: auto`, whose used value is only
// the free space above it, so the pin (its inset from the sidebar's padding edge) is recorded instead.
const sidebarStyle=getComputedStyle(sidebar);
const pinned=sidebarStyle.display==='flex';
const {marginTop,...rest}=edges(bottom);
return {...rest,...css(bottom,'display'),marginTop:pinned?'auto':marginTop,
bottomInset:pinned?px(rect(sidebar).bottom-rect(bottom).bottom-parseFloat(sidebarStyle.paddingBottom)):null};
}
function topActionsOf(actions,topbar) {
const style=getComputedStyle(topbar);
return {...layout(actions),...edges(actions),width:px(rect(actions).width),height:px(rect(actions).height),
fullWidth:Math.abs(rect(actions).width-(rect(topbar).width-parseFloat(style.paddingLeft)-parseFloat(style.paddingRight)))<=1,
rightInset:px(rect(topbar).right-rect(actions).right),
items:[...actions.children].map(node=>itemOf(node,actions))};
}
function chromeOf() {
if(!sidebar&&!workspace)return null;
const shell=document.querySelector('.app-shell');
const brand=sidebar?.querySelector('.brand');
const topbar=workspace?.querySelector('.topbar');
const footer=workspace?.querySelector('.app-footer');
return {
title:document.title,
skip:when(document.querySelector('a.skip'),skip=>({text:skip.textContent.trim(),...css(skip,'position','top','left')})),
body:{...font(document.body),backgroundColor:getComputedStyle(document.body).backgroundColor,
tokens:Object.fromEntries(['--ca-text','--ca-muted','--ca-focus','--ca-accent','--ca-field','--ca-surface','--ca-line',
'--line','--page','--sidebar','--soft-blue','--green'].map(name=>[name,getComputedStyle(document.body).getPropertyValue(name).trim()]))},
shell:when(shell,()=>{const columns=getComputedStyle(shell).gridTemplateColumns.split(' ');
return {display:getComputedStyle(shell).display,columns:columns.length,sidebarColumn:columns.length>1?columns[0]:null,
minHeight:getComputedStyle(shell).minHeight};}),
sidebar:sidebarOf(),
brand:when(brand,()=>({text:textOf(brand),name:accessibleText(brand),href:brand.getAttribute('href')?.replace(/^#\/?/,''),
...relative(brand,sidebar),...font(brand),...layout(brand),...edges(brand),
mark:when(brand.querySelector('.brand-mark'),mark=>({text:textOf(mark),hidden:mark.getAttribute('aria-hidden'),...font(mark),
width:px(rect(mark).width),height:px(rect(mark).height)})),
small:when(brand.querySelector('small'),small=>({text:small.textContent,...font(small),...css(small,'display','marginTop')}))})),
labels:sidebar?[...sidebar.querySelectorAll('.sidebar-label')].map(node=>({text:textOf(node),shown:shown(node),...font(node),...layout(node),...edges(node)})):null,
navs:sidebar?[...sidebar.querySelectorAll('nav')].map(nav=>{const links=[...nav.querySelectorAll(':scope > a')];return {
id:nav.id,label:nav.getAttribute('aria-label'),shown:shown(nav),...layout(nav),...edges(nav),
width:px(rect(nav).width),rows:links.map(navRow)};}):null,
bottom:when(sidebar?.querySelector('.sidebar-bottom'),bottomOf),
connection:when(sidebar?.querySelector('.connection'),connection=>({shown:shown(connection),text:textOf(connection,'small'),
small:connection.querySelector('small')?.textContent??null,...layout(connection),...edges(connection),...font(connection),
smallFont:when(connection.querySelector('small'),font),
dot:when(connection.querySelector('i'),dot=>css(dot,'width','height','borderTopLeftRadius','backgroundColor','marginTop'))})),
topbar:when(topbar,()=>({...layout(topbar),...edges(topbar),...css(topbar,'height','minHeight'),...relative(topbar,workspace),
fullWidth:px(rect(topbar).width)===px(rect(workspace).width)})),
breadcrumbs:when(topbar?.querySelector('.breadcrumbs'),crumbs=>({shown:shown(crumbs),text:textOf(crumbs),...layout(crumbs),...font(crumbs),
parts:[...crumbs.querySelectorAll('span')].map(span=>({text:span.textContent,...font(span)})),
...(shown(crumbs)?{left:relative(crumbs,topbar).left,middle:px(rect(crumbs).top+rect(crumbs).height/2-rect(topbar).top)}:{})})),
topActions:when(topbar?.querySelector('.top-actions'),actions=>topActionsOf(actions,topbar)),
main:when(main,()=>({tag:main.tagName.toLowerCase(),tabIndex:main.tabIndex,
...css(main,'paddingTop','paddingRight','paddingBottom','paddingLeft','maxWidth','marginLeft','marginRight')})),
footer:when(footer,()=>({...layout(footer),...edges(footer),...font(footer),...css(footer,'height'),width:px(rect(footer).width),
fullWidth:px(rect(footer).width)===px(rect(workspace).width),
spans:[...footer.querySelectorAll(':scope > span')].map(span=>({text:span.textContent.replace(/\s+/g,' ').trim(),...font(span),height:px(rect(span).height)})),
buttons:[...footer.querySelectorAll('button')].map(button=>({text:button.textContent.trim(),...font(button),...edges(button),
minHeight:getComputedStyle(button).minHeight,height:px(rect(button).height)}))})),
};
}
function headingOf() {
const heading=main?.querySelector(':scope > .heading');
if(!heading)return null;
const copy=heading.firstElementChild,h1=copy?.querySelector('h1'),description=copy?.querySelector('p'),actions=heading.querySelector('.heading-actions');
return {...layout(heading),...edges(heading),height:px(rect(heading).height),
copy:when(copy,()=>({tag:copy.tagName.toLowerCase(),...layout(copy)})),
h1:when(h1,()=>({id:h1.id,tabIndex:h1.tabIndex,text:h1.textContent,...font(h1),...edges(h1)})),
description:when(description,()=>({className:description.className,text:description.textContent,...font(description),...edges(description)})),
actions:when(actions,()=>({...layout(actions),...edges(actions),
fullWidth:px(rect(actions).width)===px(rect(heading).width),stacked:copy?rect(actions).top>=rect(copy).bottom-0.5:null,
buttons:[...actions.querySelectorAll('button')].map(node=>({text:node.textContent.trim(),primary:node.classList.contains('ca-primary'),
...font(node),...edges(node),minHeight:getComputedStyle(node).minHeight,height:px(rect(node).height)}))}))};
}
// ---- Images (#249 C7). Every box is relative to its section, every section to `main` (vertical rhythm). ----
const classes=node=>[...node.classList].sort().join(' ');
const sized=node=>({width:px(rect(node).width),height:px(rect(node).height)});
/** One control or label in a toolbar-like row: what it is, says and offers, and its box in `origin`. */
function controlOf(node,origin) {
const base={tag:node.tagName.toLowerCase(),className:classes(node),id:node.id||null,shown:shown(node)};
if(!base.shown)return base;
const style=getComputedStyle(node),input=node.querySelector('input');
// A group (the layout `.segmented`) is recorded button by button: its joined text says nothing about either.
const buttons=[...node.querySelectorAll(':scope > button')];
return {...base,text:buttons.length?null:textOf(node,'select, option'),label:node.getAttribute('aria-label'),pressed:node.getAttribute('aria-pressed'),
role:buttons.length?node.getAttribute('role'):null,buttons:buttons.length?buttons.map(button=>controlOf(button,node)):null,
primary:node.classList.contains('ca-primary'),htmlFor:node.htmlFor||null,...relative(node,origin),
...font(node),...edges(node),...layout(node),minHeight:style.minHeight,minWidth:style.minWidth,flexGrow:style.flexGrow,flexBasis:style.flexBasis,
icon:iconOf(node),
options:node.tagName==='SELECT'?[...node.options].map(option=>option.textContent):null,
input:when(input,()=>({type:input.type,id:input.id,placeholder:input.placeholder,label:input.getAttribute('aria-label'),
...font(input),...edges(input),minHeight:getComputedStyle(input).minHeight,...relative(input,node),exact:{width:rect(input).width}})),
// Unrounded place, for a comparison that lays a row out again; `stripExact` removes it before any diff.
exact:{left:rect(node).left-rect(origin).left,width:rect(node).width}};
}
function rowOf(row) {
return {...layout(row),...edges(row),...relative(row,main),exact:{width:rect(row).width},items:[...row.children].map(node=>controlOf(node,row))};
}
const gallery=main?.querySelector(':scope > .gallery-layout');
const body=gallery?.querySelector(':scope > .gallery-body');
const grid=body?.querySelector(':scope > .image-grid');
function captionOf(caption) {
return {...layout(caption),...edges(caption),...font(caption),...relative(caption,body),
// A span's width follows its text, so only its line box is recorded (the D17 date's text differs).
spans:[...caption.children].filter(shown).map(span=>({tag:span.tagName.toLowerCase(),id:span.id||null,text:textOf(span),...font(span),
top:relative(span,caption).top,height:relative(span,caption).height}))};
}
function gridOf() {
const style=getComputedStyle(grid);
return {id:grid.id||null,className:classes(grid),columns:style.gridTemplateColumns.split(/\s+/).length,
...css(grid,'columnGap','rowGap'),...relative(grid,body),cardCount:grid.querySelectorAll(':scope > .media-card').length};
}
function cardOf(card) {
const art=card.querySelector(':scope > .media-art'),open=art?.querySelector('.image-open'),img=open?.querySelector('img');
const overlays=art?.querySelector('.image-overlays'),info=card.querySelector(':scope > .media-info');
const copy=info?.querySelector(':scope > div:not(.image-card-actions)'),actions=info?.querySelector('.image-card-actions');
const h3=copy?.querySelector('h3'),p=copy?.querySelector('p');
return {className:classes(card),ratio:card.style.getPropertyValue('--media-ratio').replace(/\s/g,''),...relative(card,grid),
exact:{left:rect(card).left-rect(grid).left,top:rect(card).top-rect(grid).top,height:rect(card).height},
...edges(card),...css(card,'boxShadow','overflow','display'),
art:when(art,()=>({...relative(art,card),...css(art,'position')})),
open:when(open,()=>({label:open.getAttribute('aria-label'),...relative(open,card),...edges(open),...css(open,'display','overflow')})),
img:when(img,()=>({alt:img.alt,width:img.getAttribute('width'),height:img.getAttribute('height'),...sized(img),
...css(img,'objectFit','aspectRatio','transform','transitionProperty','transitionDuration')})),
// An overlay item's horizontal margin may be `auto`, whose used value is the free space beside it: it is kept
// to the pixel, and the item's place is also recorded as its inset from the overlay's right edge.
overlays:when(overlays,()=>!shown(overlays)?{display:getComputedStyle(overlays).display,shown:false}:({shown:true,...layout(overlays),
...css(overlays,'display','pointerEvents'),...relative(overlays,card),
items:[...overlays.children].map(node=>{const item=controlOf(node,card);
return item.shown?{...item,marginLeft:`${px(parseFloat(item.marginLeft))}px`,marginRight:`${px(parseFloat(item.marginRight))}px`,
rightInset:px(rect(overlays).right-rect(node).right)}:item;})})),
info:when(info,()=>({...layout(info),...edges(info),...relative(info,card),
// The text and the actions are placed in the card (what is seen), so a centred list row compares by place.
// The text's heights are the unrounded flow (the same CSS lays them out alike in both documents), so lines
// of 16.5px and 13.5px add up exactly.
copy:when(copy,()=>({left:relative(copy,card).left,top:relative(copy,card).top,height:rect(copy).height,...css(copy,'minWidth')})),
h3:when(h3,()=>({text:h3.textContent,title:h3.getAttribute('title'),...font(h3),...edges(h3),
...css(h3,'overflowX','textOverflow','whiteSpace'),height:rect(h3).height})),
// `maxContent` is the subtitle's one-line width (an unwrapped hidden copy beside it), so a wider text column can
// be shown to fit it on one line.
p:when(p,()=>({text:p.textContent,...font(p),...edges(p),height:rect(p).height,maxContent:(()=>{
const probe=p.cloneNode(true);probe.style.cssText='position:absolute;visibility:hidden;white-space:nowrap;width:max-content';
p.after(probe);const width=rect(probe).width;probe.remove();return px(width);})()})),
actions:when(actions,()=>({...layout(actions),...relative(actions,card),...css(actions,'flexShrink','minWidth'),
buttons:[...actions.children].map(node=>controlOf(node,actions))}))}))};
}
function continuationOf(continuation) {
return {id:continuation.id||null,...layout(continuation),...edges(continuation),...relative(continuation,body),
items:[...continuation.children].filter(shown).map(node=>controlOf(node,continuation))};
}
function panelOf() {
const panel=gallery.children[1];
// The panel's content (and so the layout's height) is the inspector's, PR D; its box is compared here.
const {height,...place}=relative(gallery,main);
return {...css(gallery,'display','gridTemplateColumns','columnGap','rowGap','alignItems'),...place,
box:when(panel,()=>{const box=relative(panel,gallery);return {left:box.left,top:box.top,width:box.width,...css(panel,'position','top')};})};
}
const continuation=body?.querySelector(':scope > .infinite-continuation');
function bulkbarOf(bar) {
return {id:bar.id||null,...relative(bar,main),children:bar.children.length,bar:when(bar.querySelector(':scope > .bulkbar'),rowOf)};
}
// ---- Prompt library (#249 E3). The concept's main holds the toolbar, caption and grid; production's shelf wraps
// them in `section.library-shelf` and windows the cards into `.library-row`s (spec §3.4: "row windowing kept"),
// so every Library box is found by descendant and placed relative to `main` or its own card.
// A `display: contents` node has no box: its children stand in its place (the D23 prompt-block mount point).
const boxedChildren=node=>[...node.children].flatMap(child=>getComputedStyle(child).display==='contents'?boxedChildren(child):[child]);
function libraryCardOf(card,origin) {
const art=card.querySelector(':scope > .card-art'),content=card.querySelector(':scope > .card-content'),footer=card.querySelector(':scope > .card-footer');
const title=content?.querySelector(':scope > .card-title'),meta=content?.querySelector(':scope > .card-meta'),tags=content?.querySelector(':scope > .tags');
const section=content?.querySelector('.prompt-section'),heading=section?.querySelector(':scope > .prompt-heading');
const text=section?.querySelector(':scope > .prompt-text'),facts=footer?.querySelector(':scope > span'),actions=footer?.querySelector(':scope > .row-actions');
const lines=node=>Math.round(rect(node).height/parseFloat(getComputedStyle(node).lineHeight));
const spanOf=(node,parent)=>({tag:node.tagName.toLowerCase(),className:classes(node),text:textOf(node),...font(node),...edges(node),...relative(node,parent)});
return {tag:card.tagName.toLowerCase(),className:classes(card),...relative(card,origin),...edges(card),...css(card,'overflow','display','boxShadow'),
children:[...card.children].map(classes),
art:when(art,()=>({...relative(art,card),...css(art,'display','gridTemplateColumns','columnGap','rowGap','backgroundColor'),
items:[...art.children].map(node=>({tag:node.tagName.toLowerCase(),className:classes(node),alt:node.getAttribute('alt'),...relative(node,art),
...css(node,'objectFit')}))})),
content:when(content,()=>({...relative(content,card),...edges(content),children:boxedChildren(content).map(node=>`${node.tagName.toLowerCase()}.${classes(node)}`)})),
title:when(title,()=>({...layout(title),...edges(title),...relative(title,content),
items:[...title.children].map(node=>node.tagName==='BUTTON'?controlOf(node,title):spanOf(node,title))})),
section:when(section,()=>({className:classes(section),...relative(section,content),...edges(section),
label:when(heading?.querySelector('.role-label'),label=>({text:label.textContent,...font(label)})),
actions:when(heading?.querySelector('.prompt-actions'),group=>({...layout(group),...relative(group,section),
buttons:[...group.children].map(node=>controlOf(node,group))})),
text:when(text,()=>({text:text.textContent,...font(text),...edges(text),...relative(text,section),lines:lines(text)}))})),
meta:when(meta,()=>({...layout(meta),...edges(meta),...font(meta),...relative(meta,content),items:[...meta.children].map(node=>spanOf(node,meta))})),
// A chip's unrounded place too, so a re-ordered row can be laid out again (`reflow`; `stripExact` removes it).
tags:when(tags,()=>({...layout(tags),...edges(tags),...relative(tags,content),exact:{width:rect(tags).width},
items:[...tags.children].map(node=>({...spanOf(node,tags),shown:shown(node),exact:{left:rect(node).left-rect(tags).left,width:rect(node).width}}))})),
footer:when(footer,()=>({...layout(footer),...edges(footer),...font(footer),...relative(footer,card),
// What is seen (hidden-only text left out) and what is spoken (aria-hidden text left out).
facts:when(facts,()=>({text:textOf(facts,'.ca-visually-hidden'),spoken:accessibleText(facts),...font(facts),...relative(facts,footer)})),
actions:when(actions,()=>({...layout(actions),...relative(actions,footer),buttons:[...actions.children].map(node=>controlOf(node,actions))}))}))};
}
function libraryOf() {
const grid=main?.querySelector('.library-grid');
if(!grid)return null;
const toolbar=main.querySelector('search.toolbar'),caption=main.querySelector('.section-caption');
const cards=[...grid.querySelectorAll('.prompt-card')];
// Whatever the page shows after the grid, in document order (the concept: nothing).
const trailing=[];
for(let node=grid;node&&node!==main;node=node.parentElement)
for(let next=node.nextElementSibling;next;next=next.nextElementSibling)if(shown(next))trailing.push({tag:next.tagName.toLowerCase(),className:classes(next),text:next.innerText.replace(/\s+/g,' ').trim()});
const style=getComputedStyle(grid);
return {toolbar:when(toolbar,rowOf),
caption:when(caption,()=>({...layout(caption),...edges(caption),...font(caption),...relative(caption,main),
spans:[...caption.children].filter(shown).map(span=>({tag:span.tagName.toLowerCase(),text:textOf(span),...font(span),
top:relative(span,caption).top,height:relative(span,caption).height}))})),
grid:{columns:style.gridTemplateColumns.split(/\s+/).length,...css(grid,'columnGap','rowGap'),...relative(grid,main),cardCount:cards.length},
cards:cards.slice(0,6).map(card=>libraryCardOf(card,grid)),trailing};
}
// ---- Prompt history (#249 F5): renderHistory a587–622, style.css 1059–1179 and 1546–1567. The concept's main holds
// the summary, the variants panel, the comparison and the gallery; production's sit in `section.library-history`, so
// each is found by descendant and placed relative to `main` (vertical rhythm) or to its own section.
const spoken=node=>node.classList.contains('ca-visually-hidden');
const outline=node=>css(node,'outlineStyle','outlineWidth','outlineColor','outlineOffset');
const pseudo=(node,which)=>{const style=getComputedStyle(node,which);return Object.fromEntries(['content','position','top','left','width','height',
'borderLeftWidth','borderBottomWidth','borderLeftColor','borderBottomColor','borderBottomLeftRadius','backgroundColor','color'].map(key=>[key,style[key]]));};
// What a section shows, in order: each shown child as `tag.classes`, visually hidden statuses apart (`spoken`).
const structureOf=node=>({children:boxedChildren(node).filter(child=>shown(child)&&!spoken(child)).map(child=>`${child.tagName.toLowerCase()}.${classes(child)}`),
spoken:[...node.querySelectorAll('.ca-visually-hidden')].filter(shown).map(child=>({role:child.getAttribute('role'),text:child.textContent}))});
function promptSectionOf(section,origin) {
const heading=section.querySelector(':scope > .prompt-heading'),label=heading?.querySelector('.role-label');
const actions=heading?.querySelector('.prompt-actions'),text=section.querySelector(':scope > .prompt-text');
return {className:classes(section),...relative(section,origin),...edges(section),
label:when(label,()=>({text:label.textContent,...font(label)})),
actions:when(actions,()=>({...layout(actions),...relative(actions,section),buttons:[...actions.children].map(node=>controlOf(node,actions))})),
text:when(text,()=>({text:text.textContent,...font(text),...edges(text),...relative(text,section),
lines:Math.round(rect(text).height/parseFloat(getComputedStyle(text).lineHeight))}))};
}
function panelHeadingOf(heading,origin) {
const h2=heading.querySelector('h2'),note=heading.querySelector('.small'),actions=heading.querySelector(':scope > .row-actions');
return {...layout(heading),...edges(heading),...relative(heading,origin),
h2:when(h2,()=>({text:h2.textContent,...font(h2),...edges(h2),...relative(h2,heading)})),
note:when(note,()=>({tag:note.tagName.toLowerCase(),text:note.textContent,...font(note),...edges(note),...relative(note,heading)})),
actions:when(actions,()=>({...layout(actions),...relative(actions,heading),buttons:[...actions.children].filter(shown).map(node=>controlOf(node,actions))}))};
}
function laneOf(lane,timeline) {
const dot=lane.querySelector(':scope > .variant-dot'),label=lane.querySelector(':scope > span'),run=lane.querySelector(':scope > .run-dot');
return {className:classes(lane),offset:lane.style.getPropertyValue('--lane-offset'),...relative(lane,timeline),...edges(lane),...css(lane,'minWidth','position'),
before:pseudo(lane,'::before'),
dot:when(dot,()=>({...controlOf(dot,lane),...outline(dot),...css(dot,'position','top','left','width','height','color')})),
label:when(label,()=>({text:label.textContent,...font(label),...relative(label,lane),...css(label,'position','top','left')})),
run:shown(run)?{...controlOf(run,lane),...css(run,'position','top','left','width','height')}:null};
}
function timelineOf(timeline,origin) {
const positive=timeline.querySelector(':scope > .positive-lane'),span=positive?.querySelector('span');
return {...edges(timeline),...css(timeline,'overflowX','position'),...relative(timeline,origin),
positive:when(positive,()=>({...edges(positive),...css(positive,'height','minWidth'),...relative(positive,timeline),before:pseudo(positive,'::before'),
span:when(span,()=>({text:span.textContent,...font(span),...relative(span,positive)}))})),
lanes:[...timeline.querySelectorAll(':scope > .variant-lane')].map(lane=>laneOf(lane,timeline)),
structure:structureOf(timeline)};
}
function variantsOf(panel) {
const heading=panel.querySelector(':scope > .panel-heading'),timeline=panel.querySelector(':scope > .timeline'),lower=panel.querySelector(':scope > .timeline-lower');
return {className:classes(panel),...edges(panel),...relative(panel,main),structure:structureOf(panel),
heading:when(heading,()=>panelHeadingOf(heading,panel)),timeline:when(timeline,()=>timelineOf(timeline,panel)),
lower:when(lower,()=>({...layout(lower),...edges(lower),...relative(lower,panel),
items:[...lower.children].filter(shown).map(node=>({...controlOf(node,lower),...font(node)}))}))};
}
function compareOf(section) {
const h2=section.querySelector(':scope > h2'),intro=section.querySelector(':scope > p:not(.small)'),grid=section.querySelector(':scope > .compare-grid');
return {...edges(section),...relative(section,main),structure:structureOf(section),
h2:when(h2,()=>({text:h2.textContent,...font(h2),...edges(h2)})),
intro:when(intro,()=>({text:intro.textContent,...font(intro),...edges(intro),...relative(intro,section)})),
grid:when(grid,()=>({columns:getComputedStyle(grid).gridTemplateColumns.split(/\s+/).length,...css(grid,'columnGap','rowGap'),...relative(grid,section),
items:[...grid.children].map(item=>({className:classes(item),...edges(item),...relative(item,grid),
sections:[...item.querySelectorAll('.prompt-section')].map(node=>promptSectionOf(node,item))}))})),
notes:[...section.querySelectorAll(':scope > p.small')].map(note=>({text:note.textContent,...font(note),...edges(note),...relative(note,section)})),
added:[...section.querySelectorAll(':scope > .diff-added')].map(chip=>({text:chip.textContent,...font(chip),...edges(chip),...css(chip,'display'),...relative(chip,section)}))};
}
function historyOf() {
const panel=main?.querySelector('section.timeline-panel');
if(!panel)return null;
const summary=main.querySelector('article.surface'),gallery=main.querySelector('section.history-gallery');
const compare=[...main.querySelectorAll('section.surface:not(.timeline-panel)')].find(shown);
const chip=summary?.querySelector(':scope > .chip'),meta=summary?.querySelector(':scope > .card-meta');
const galleryHeading=gallery?.querySelector(':scope > .panel-heading');
return {
summary:when(summary,()=>({...edges(summary),...relative(summary,main),structure:structureOf(summary),
chip:when(chip,()=>({text:chip.textContent,...font(chip),...edges(chip),...relative(chip,summary)})),
sections:[...summary.querySelectorAll('.prompt-section')].map(node=>promptSectionOf(node,summary)),
meta:when(meta,()=>({...layout(meta),...edges(meta),...font(meta),...relative(meta,summary),
items:[...meta.children].filter(shown).map(node=>({text:node.textContent,...font(node),...relative(node,meta)}))}))})),
variants:variantsOf(panel),
compare:when(compare,compareOf),
gallery:when(gallery,()=>({...edges(gallery),...relative(gallery,main),
heading:when(galleryHeading,()=>panelHeadingOf(galleryHeading,gallery))})),
};
}
return {chrome:chromeOf(),heading:headingOf(),
toolbar:when(main?.querySelector(':scope > search.toolbar'),rowOf),
filterRow:when(main?.querySelector(':scope > .filter-row'),rowOf),
bulkbar:when(main?.querySelector(':scope > #bulkbar'),bulkbarOf),
caption:when(body?.querySelector(':scope > .section-caption'),captionOf),
grid:when(grid,gridOf),
cards:grid?[...grid.querySelectorAll(':scope > .media-card')].slice(0,6).map(cardOf):null,
continuation:when(continuation,continuationOf),
panel:when(gallery,panelOf),
library:libraryOf(),history:historyOf(),noPageScroll:document.documentElement.scrollWidth<=innerWidth+1};
}
/**
* The inspector (#249 D4): `panel` is the Images side panel's content (`aside#image-inspector`, app.js imageDetails
* a400–414) and `viewerDetails` the viewer's full details (`aside#viewer-details`, imageDetails(i, true)), each null
* when absent. Both are measured by one in-page function with the concept's selectors in either document.
*/
export async function inspectorOf(page) {
return {panel:await page.evaluate(measureInspector,'#image-inspector'),
viewerDetails:await page.evaluate(measureInspector,'#viewer-details')};
}
/** Runs in the page; self-contained. Every box is relative to the measured root. */
export function measureInspector(selector) {
const root=document.querySelector(selector);
if(!root)return null;
const px=value=>Math.round(value);
const css=(node,...keys)=>{const style=getComputedStyle(node);return Object.fromEntries(keys.map(key=>[key,style[key]]));};
const shown=node=>Boolean(node)&&node.getClientRects().length>0&&getComputedStyle(node).visibility!=='hidden';
const rect=node=>node.getBoundingClientRect();
const font=node=>css(node,'fontFamily','fontSize','fontWeight','lineHeight','letterSpacing','color','textTransform');
const edges=node=>css(node,'paddingTop','paddingRight','paddingBottom','paddingLeft','marginTop','marginRight','marginBottom','marginLeft',
'borderTopWidth','borderTopStyle','borderTopColor','borderRightWidth','borderBottomWidth','borderTopLeftRadius','backgroundColor');
const layout=node=>css(node,'display','flexDirection','flexWrap','justifyContent','alignItems','columnGap','rowGap');
const box=node=>{const a=rect(node),b=rect(root);return {left:px(a.left-b.left),top:px(a.top-b.top),width:px(a.width),height:px(a.height)};};
const classes=node=>[...node.classList].sort().join(' ');
const when=(node,measure)=>node?measure(node):null;
// Visible text: without visually hidden prefixes and aria-hidden glyphs, whitespace collapsed.
const textOf=(node,skip='.ca-visually-hidden, [aria-hidden="true"]')=>{const copy=node.cloneNode(true);copy.querySelectorAll(skip).forEach(item=>item.remove());
return copy.textContent.replace(/\s+/g,' ').trim();};
const hiddenOf=node=>[...node.querySelectorAll('.ca-visually-hidden')].map(item=>item.textContent).join('')||null;
const nameOf=node=>node.getAttribute('aria-label')??textOf(node,'[aria-hidden="true"]');
function iconOf(node) {
const svg=node.querySelector(':scope > svg.icon');
if(!svg)return null;
return {width:px(rect(svg).width),height:px(rect(svg).height),viewBox:svg.getAttribute('viewBox'),hidden:svg.getAttribute('aria-hidden'),
d:svg.querySelector('path')?.getAttribute('d')??null,...css(svg,'strokeWidth','color')};
}
function controlOf(node) {
const style=getComputedStyle(node);
return {tag:node.tagName.toLowerCase(),className:classes(node),text:textOf(node),name:nameOf(node),pressed:node.getAttribute('aria-pressed'),
primary:node.classList.contains('ca-primary'),...box(node),...font(node),...edges(node),...layout(node),
minHeight:style.minHeight,minWidth:style.minWidth,icon:iconOf(node)};
}
function chipOf(node) {
return {tag:node.tagName.toLowerCase(),className:classes(node),text:textOf(node),hidden:hiddenOf(node),...box(node),...font(node),...edges(node),
minHeight:getComputedStyle(node).minHeight};
}
function rowOf(row) {
return {...layout(row),...edges(row),...box(row),chips:[...row.children].map(chipOf)};
}
function sectionOf(section) {
const heading=section.querySelector(':scope > .prompt-heading'),label=heading?.querySelector('.role-label');
const actions=heading?.querySelector('.prompt-actions'),text=section.querySelector(':scope > .prompt-text');
return {className:classes(section),...edges(section),...box(section),
heading:when(heading,()=>({...layout(heading),...edges(heading),...box(heading)})),
label:when(label,()=>({tag:label.tagName.toLowerCase(),text:label.textContent,...font(label),...box(label)})),
actions:when(actions,()=>({...layout(actions),...box(actions),buttons:[...actions.children].map(controlOf)})),
text:when(text,()=>({tag:text.tagName.toLowerCase(),className:classes(text),text:text.textContent,tabIndex:text.tabIndex,...font(text),...edges(text),
...css(text,'whiteSpace','overflowWrap'),...box(text),lines:px(rect(text).height/parseFloat(getComputedStyle(text).lineHeight))}))};
}
function factsOf(list) {
const style=getComputedStyle(list);
return {...css(list,'display','columnGap','rowGap','fontSize'),...edges(list),columns:style.gridTemplateColumns.split(/\s+/).length,...box(list),
items:[...list.children].map(item=>{const dt=item.querySelector('dt'),dd=item.querySelector('dd');
return {...box(item),dt:when(dt,()=>({text:dt.textContent,...font(dt),...edges(dt)})),dd:when(dd,()=>({text:dd.textContent,...font(dd),...edges(dd)}))};})};
}
const describe=item=>`${item.localName}${item.classList.length?'.'+[...item.classList].join('.'):''}`;
const panel=root.classList.contains('detail-panel');
// The panel's `.detail-inner`, the viewer's class-less wrapper (D20). A prompt-block mount point that is
// `display: contents` is transparent: its sections count as the wrapper's own children.
const inner=root.querySelector(panel?':scope > .detail-inner':':scope > div');
const parts=inner?[...inner.children].flatMap(item=>getComputedStyle(item).display==='contents'?[...item.children]:[item]):[];
const sections=parts.filter(item=>item.classList.contains('prompt-section'));
const firstSection=parts.indexOf(sections[0]);
const rows=parts.filter(item=>item.classList.contains('tags'));
const heading=parts.find(item=>item.classList.contains('panel-heading')),h2=heading?.querySelector('h2'),format=heading?.querySelector('.chip');
const filename=parts.find(item=>item.matches('p.small'));
const cover=root.querySelector(':scope > .detail-cover'),footer=root.querySelector(':scope > .detail-footer');
// What a closed disclosure holds is not offered (only its summary is), whatever boxes the engine keeps for it.
const offered=node=>{const closed=node.closest('details:not([open])');return !closed||node.parentElement===closed&&node.localName==='summary';};
const controls=[...root.querySelectorAll('button, a[href], [tabindex]:not([tabindex="-1"]), summary')].filter(node=>shown(node)&&offered(node));
return {
className:classes(root),label:root.getAttribute('aria-label'),
...css(root,'position','top','overflowX','overflowY','maxHeight'),...edges(root),width:px(rect(root).width),height:px(rect(root).height),
structure:{outer:[...root.children].map(describe),inner:parts.map(describe)},
cover:when(cover,()=>({tag:cover.tagName.toLowerCase(),alt:cover.getAttribute('alt'),...box(cover),...css(cover,'objectFit','display')})),
inner:when(inner,()=>({...edges(inner),...box(inner)})),
heading:when(heading,()=>({...layout(heading),...edges(heading),...box(heading),
h2:when(h2,()=>({text:h2.textContent,...font(h2),...edges(h2),...box(h2)})),format:when(format,chipOf)})),
filename:when(filename,()=>({text:filename.textContent,...font(filename),...edges(filename),...box(filename)})),
badges:when(rows.find(row=>parts.indexOf(row)<firstSection),rowOf),
sections:sections.map(sectionOf),
tags:when(rows.find(row=>parts.indexOf(row)>firstSection),rowOf),
facts:when(parts.find(item=>item.matches('dl.meta-grid')),factsOf),
// Disclosures (viewer only) by their summary and frame; their content is the D20 production facts.
details:parts.filter(item=>item.localName==='details').map(item=>{const summary=item.querySelector(':scope > summary');
return {open:item.open,...edges(item),...box(item),summary:when(summary,()=>({text:summary.textContent,...font(summary),...box(summary)}))};}),
footer:when(footer,()=>({...layout(footer),...edges(footer),...box(footer),buttons:[...footer.children].map(controlOf)})),
// The viewer's pair send and history follow the wrapper directly (imageDetails(i, true) has no footer).
actions:panel?null:[...root.children].filter(item=>item.localName==='button').map(controlOf),
controls:controls.map(node=>({tag:node.tagName.toLowerCase(),text:textOf(node),name:nameOf(node),pressed:node.getAttribute('aria-pressed'),
primary:node.classList.contains('ca-primary'),minHeight:getComputedStyle(node).minHeight})),
};
}