Files
ComfyAssets-ComfyUI_PromptM…/tests/browser/concept-inventory.mjs
T
Vito f95f66d76a ci(browser): run page workflows with parallel workers and CI shards (#274)
* test(browser): one test server per Playwright worker

The page workflows started one global webServer and ran with one worker.
Each worker now owns its own tests/browser/server.py on an OS-chosen port,
with its own temp root and database, through a shared `test` in
tests/browser/fixtures.mjs. baseURL, and so page, request and
browser.newContext, point at that worker's server. A server that dies
fails the running test with its stderr tail and the next test gets a
fresh one. The worker count comes from PM_TEST_WORKERS, else 1 under CI,
else a quarter of the CPUs up to 8.

Chromium workflows in the pinned image: 510 tests in 606 s with one
worker on main, 511 (one new isolation spec) in 119 s with eight.

* test(browser): test servers bind an OS-chosen port themselves

tests/browser/server.py accepts --port 0: it binds 127.0.0.1:0 before
building the app, holds that socket for its whole life and prints
PM_TEST_SERVER_PORT=<n> to stdout. startBrowserServer defaults to port 0
and reads the announced port, so no port is reserved and released before
the server binds and two launchers can no longer race for one. The
"address already in use" retry and free-port.mjs are gone; --port N still
works and is checked against the announcement.

* ci(coverage): shard and merge modes for the frontend coverage run

frontend-coverage.mjs now plans its steps from the command line.
No arguments still runs everything, then reports and checks.
--shard I/N runs one slice of the chromium+touch workflows into
coverage/js/raw without wiping it or reporting; shard 1 also runs the
node units and the viewer suite. --merge-only reports and checks over raw
coverage the shards wrote, with --update-baseline as before, and refuses
an empty or missing raw dir. npm scripts: test:coverage:shard and
coverage:merge.

* ci(viewerjs): run browser suites with workers and shards

Frontend coverage runs as three shards (PM_TEST_WORKERS=3 each) that upload
their raw V8 files as coverage-raw-N; a merge job downloads them, fails unless
all three arrived with raw files and no clashing names, then runs
coverage:merge. Firefox and WebKit page workflows run as two shards each with
three workers. The required viewerjs context keeps its name and now needs the
shards, the merge and the browser shards, failing unless every one succeeded.

* ci(viewerjs): cache npm downloads and size timeouts from the first sharded run

The first sharded run lost a webkit shard to its 12-minute limit after all
267 tests passed, and npm ci stalled for 5 minutes in six of eight jobs. Each
npm ci now restores npm's download cache keyed on the vendor lockfile, and
browser job timeouts are the measured times plus at least 50%, never under 20
minutes. The workflow comment records the measurements.

* test(browser): wait for rendering frames, not timers or luck, under load

Two Library workflows failed in CI's webkit shard 2/2 (run 39714840809)
under parallel load:

- "library infinite loading ..." counted cards right after the last
  page hid "Load more". That render queues the window update for the
  next frame, so a slow frame left the 120 cards of the all-rows
  layout in place (received 120, expected < 80). It now waits for the
  next frame, which runs after every callback the page queued.
- "row measurement preserves anchor ..." settled with a 60 ms timer. A
  scroll event is delivered in a rendering frame, so on a starved
  renderer the timer ended before the scroll's frame and no card was in
  view (null anchor). settleLibrary now waits for two consecutive
  native frames with no Library frame queued, checked inside the frame
  callback.

Before/after: a scratch copy that delays every frame by 120 ms (as a
starved runner) failed the old helpers 19 of 40 runs, at the CI lines,
and passed the new ones 40 of 40 on chromium and webkit. Throttled to
1 CPU with 4 workers, the original spec failed 1 of 42 for each test.

The Tags viewer workflow closed the viewer as soon as its image was
visible, before ViewerJS rendered the title, so CI's coverage never ran
the page's title callback (tags-page.js functions 26/46 = 56.52%, one
function above the floor of 56; locally 27/46). The test now asserts the
title names the shown file, which always runs the callback.

* test(browser): stable under parallel workers

Document how to run the browser suites in parallel and sharded, with the
measured times, and what keeps specs stable beside each other: wait for
a rendering frame, a response or a visible state, never for time.

With b665aa6 the full workflows suite passed on chromium, touch, firefox
and webkit with 8 workers, each test 3 times (6132 passed, 0 failed,
24 minutes), and once at CI size (docker --cpus=4, 3 workers: 2044
passed, 25.5 minutes).

The npm download cache removed the npm ci stall: 0 to 2 s in every job
of run 39722172529, against about 300 s in most jobs before. The
workflow's timing comment now records that run; the whole workflow took
8m54s against about 33 minutes before sharding. Shard imbalance (shard 1
carries the concept-comparison specs) is documented, not tuned.

* test(browser): server stderr on failures, no orphan servers, waits on state

Final review fixes for the per-worker test servers (#274):

- A failed test gets the stderr its server wrote during that test
  attached as `server-stderr`, so an aiohttp traceback behind a 500
  reaches the CI report. The launcher keeps the newest 256 KB with a
  stream position per test (stderrMark/stderrSince), and the fixture
  attaches it only when the test did not end as expected.
- The port announcement counts only as a complete line; a chunk ending
  mid-number was read as a shorter port.
- server.py --exit-on-stdin-eof shuts down gracefully (database closed,
  temp root removed) when stdin closes. The launcher holds that pipe,
  so a SIGKILLed worker leaves no server behind, on every OS.
- settled() gives up after 600 frames with the observation stats
  instead of hanging to the test timeout.
- The Classic text-sync test waits for the page's 50 ms timer to
  install serializeValue instead of sleeping 60 ms. With that timer run
  100 ms late (a scratch copy), the old wait failed 20/20 and the poll
  passed 20/20; the spec passed 240/240 at 8 workers x10 and 240/240
  at 1 CPU with 4 workers.
- The workflow test checks each npm cache key names its job's pinned
  image tag.

Every new unit test failed before its change (missing export, the old
regex timing out on the split announcement, an unknown server flag, a
hung settle, a mismatched cache key).

* docs(testing): server lifetime, stderr attachments and the final measured CI times

TESTING.md describes the stdin-EOF shutdown and the server-stderr
attachment, states that the npm cache key names the job's image tag
(now tested), quotes run 39725176320 at cbc8a61 (8m38s) and explains the
20-minute browser job limit. The workflow timing comment quotes the same
run.

* fix(browser): server shutdown and its tests on Windows, Python < 3.13 and CI

Three CI failures on ed809f7:

- Windows: server.py exited 1 on stdin EOF because create_app works with
  the temp root as its cwd, and Windows cannot remove a process's cwd.
  main() now restores the original cwd before the root is removed.
- Python 3.10 to 3.12: the lifetime test's cleanup called communicate()
  after closing stdin, which flushes the closed pipe (ValueError); 3.13
  tolerates it. It now waits and closes the pipes itself, and the exit
  assertion shows the server's stderr. Under 3.12: errors=2 before, OK
  after.
- Tooling (CI container): the SIGKILLed-worker tests treated an exited
  server as alive, because the container's PID 1 does not reap orphans
  and kill(pid, 0) succeeds on a zombie. Reproduced locally with docker
  without --init (2 failed); a zombie now counts as exited (2 passed).
2026-10-21 23:10:57 -07:00

641 lines
51 KiB
JavaScript
Raw Blame History

This file contains ambiguous Unicode characters
This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.
// 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 './fixtures.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}#/${route}`);
await selectTheme(page,theme);
await expect(page.locator('#workspace-main #page-title')).toBeVisible();
await expect(page.locator('#primary-nav .nav-count')).toHaveCount(3);
// SAVED VIEWS' Favorites count (D51), the concept's starred images in the concept fixture.
await expect(page.locator('#saved-nav a[data-route="favorites"] .nav-count')).toHaveCount(1);
}
/** Computed outline of the focused element, after keyboard focus so `:focus-visible` applies. */
export async function focusRingOf(locator) {
return locator.evaluate(node=>{const style=getComputedStyle(node);return {focused:document.activeElement===node,
visible:node.matches(':focus-visible'),outlineStyle:style.outlineStyle,outlineWidth:style.outlineWidth,
outlineColor:style.outlineColor,outlineOffset:style.outlineOffset};});
}
/** Computed colors of an element while the pointer rests on it; the pointer is parked again afterwards. */
export async function hoverStateOf(page,locator) {
await locator.hover();
const state=await locator.evaluate(node=>{const style=getComputedStyle(node);return {hovered:node.matches(':hover'),
color:style.color,backgroundColor:style.backgroundColor,borderTopColor:style.borderTopColor,
textDecorationLine:style.textDecorationLine,boxShadow:style.boxShadow};});
await page.mouse.move(0,0);
return state;
}
/**
* Mutate the open page so a comparison can be shown to notice a change (the A7 mutation check): `css` is appended as
* the last stylesheet, so it wins over equally specific concept rules, and every element matching a `remove` selector
* is detached. Returns an async undo that restores the stylesheet and the removed elements in place.
*/
export async function mutate(page,{css=null,remove=[]}={}) {
const token=await page.evaluate(({css,remove})=>{
const token=`mutation-${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})),
};
}