Revised checkbox-tree functions and related

This commit is contained in:
2026-07-12 21:45:55 -05:00
parent af325782a8
commit 9e7fbe0865
15 changed files with 1063 additions and 721 deletions
+2 -1
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@@ -10,7 +10,8 @@ Known and addressed issues for newly released versions are easily added using th
- Copy the issue table's HTML from the webpage using devtools.
- Fill out the process.html page's fields and paste in the table HTML.
- Download the Markdown file and put it into the correct folder.
- Fix up the products.json file manually or run `update_products_from_issues.py`.
- Run `npm run update:generated` to update `products.json`, append new stable
product-tree manifest slots, and regenerate rendered test fixtures.
- Submit a pull request.
There is intentionally no automated scaping of Palo Alto's website, to avoid abuse of server resources. Also releases are not that frequent. A crawler to grab some data from the Common Crawl dataset was started but never really finished.
+3
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@@ -4,6 +4,9 @@
"type": "module",
"scripts": {
"test": "node --test",
"update:products": "node scripts/update-products-from-issues.mjs",
"update:fixtures": "node scripts/generate-rendered-fixtures.mjs",
"update:generated": "node scripts/refresh-generated-data.mjs",
"vendor:marked": "mkdir -p web/vendor && cp node_modules/marked/lib/marked.esm.js web/vendor/marked.esm.js"
},
"devDependencies": {
+11 -4
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@@ -1,11 +1,11 @@
/**
* Generates expected-parsed.json for each fixture directory that contains expected.md.
* Run manually: node test/generate-rendered-fixtures.mjs
* Run manually: node scripts/generate-rendered-fixtures.mjs
*/
import { readFileSync, writeFileSync, readdirSync } from 'node:fs';
import { join } from 'node:path';
import { fileURLToPath } from 'node:url';
import { join, resolve } from 'node:path';
import { fileURLToPath, pathToFileURL } from 'node:url';
import { JSDOM } from 'jsdom';
const { window } = new JSDOM('<!doctype html><html><body></body></html>');
@@ -20,8 +20,9 @@ globalThis.fetch = () => Promise.resolve({
const { parseMarkdownIssues, markdownSummaryToHtml } = await import('../web/js/issues.js');
const __dirname = fileURLToPath(new URL('.', import.meta.url));
const fixturesDir = join(__dirname, '../test/fixtures');
const defaultFixturesDir = join(__dirname, '../test/fixtures');
export function generateRenderedFixtures(fixturesDir = defaultFixturesDir) {
const fixtures = readdirSync(fixturesDir).filter(name => {
const contents = readdirSync(join(fixturesDir, name)).map(d => d);
return contents.includes('expected.md');
@@ -48,3 +49,9 @@ for (const fixtureId of fixtures) {
console.log(`Written ${fixtureId}/expected-parsed.json (${result.length} issues)`);
}
return { fixtures: fixtures.length };
}
if (process.argv[1] && import.meta.url === pathToFileURL(resolve(process.argv[1])).href) {
generateRenderedFixtures();
}
+7
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@@ -0,0 +1,7 @@
#!/usr/bin/env node
import { runUpdateProductsCli } from './update-products-from-issues.mjs';
import { generateRenderedFixtures } from './generate-rendered-fixtures.mjs';
await runUpdateProductsCli();
const fixtureResult = generateRenderedFixtures();
console.log(`Regenerated ${fixtureResult.fixtures} rendered fixture set(s).`);
+202
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@@ -0,0 +1,202 @@
#!/usr/bin/env node
import { readdir, readFile, writeFile } from 'node:fs/promises';
import { dirname, join, relative, resolve } from 'node:path';
import { fileURLToPath, pathToFileURL } from 'node:url';
import { buildProductTree, enumerateTreePaths } from '../web/js/product-tree-model.js';
const ISSUE_TYPES = new Set(['addressed', 'known']);
const VERSION_FILENAME_RE = /^(?<version>[^.]+(?:\.[^.]+)*)\.md$/;
const HOTFIX_RE = /^(?<base>\d+(?:\.\d+)*)(?:-h(?<hotfix>\d+))?$/;
const REPO_ROOT = resolve(dirname(fileURLToPath(import.meta.url)), '..');
async function walkFiles(root) {
const files = [];
async function visit(directory) {
for (const entry of await readdir(directory, { withFileTypes: true })) {
const path = join(directory, entry.name);
if (entry.isDirectory()) await visit(path);
else if (entry.isFile()) files.push(path);
}
}
await visit(root);
return files.sort();
}
export async function collectIssueFiles(issuesDir) {
const records = [];
for (const filePath of await walkFiles(issuesDir)) {
const parts = relative(issuesDir, filePath).split(/[\\/]/);
if (parts.length !== 3) continue;
const [product, issueType, filename] = parts;
if (!ISSUE_TYPES.has(issueType)) continue;
const match = VERSION_FILENAME_RE.exec(filename);
if (!match) continue;
records.push({ product, issueType, version: match.groups.version, filename });
}
return records;
}
function clearLeafIssueArrays(node) {
if (!node || typeof node !== 'object' || Array.isArray(node)) return;
if ('addressed' in node || 'known' in node) {
node.addressed = [];
node.known = [];
return;
}
Object.values(node).forEach(clearLeafIssueArrays);
}
function getPath(data, path) {
let current = data;
for (const key of path) {
if (!current || typeof current !== 'object' || !(key in current)) return null;
current = current[key];
}
return current;
}
function isIssueLeaf(node) {
return Boolean(node) && typeof node === 'object' && ('addressed' in node || 'known' in node);
}
function pickTargetLeafPath(products, product, version) {
const parts = version.split('.');
const major = parts[0];
const minor = parts.length > 1 ? `${parts[0]}.${parts[1]}` : major;
for (const path of [[product, major, minor], [product, major], [product]]) {
if (isIssueLeaf(getPath(products, path))) return path;
}
return null;
}
function parseReleasePrefix(prefix) {
const match = HOTFIX_RE.exec(prefix);
if (!match) return { base: [], hotfix: -1 };
return {
base: match.groups.base.split('.').map(Number),
hotfix: match.groups.hotfix === undefined ? -1 : Number(match.groups.hotfix)
};
}
function compareNumberArrays(left, right) {
const length = Math.max(left.length, right.length);
for (let index = 0; index < length; index++) {
const difference = (left[index] ?? -1) - (right[index] ?? -1);
if (difference) return difference;
}
return 0;
}
function compareIssueFilenames(left, right) {
const leftPrefix = left.replace(/\.[^.]+$/, '');
const rightPrefix = right.replace(/\.[^.]+$/, '');
const leftVersion = parseReleasePrefix(leftPrefix);
const rightVersion = parseReleasePrefix(rightPrefix);
return compareNumberArrays(leftVersion.base, rightVersion.base) ||
Number(leftVersion.hotfix >= 0) - Number(rightVersion.hotfix >= 0) ||
leftVersion.hotfix - rightVersion.hotfix ||
left.localeCompare(right);
}
export function rebuildProducts(products, records) {
clearLeafIssueArrays(products);
const unmatched = [];
records.sort((left, right) =>
left.product.localeCompare(right.product) ||
left.issueType.localeCompare(right.issueType) ||
left.version.localeCompare(right.version)
);
for (const record of records) {
const path = pickTargetLeafPath(products, record.product, record.version);
if (!path) {
unmatched.push(record);
continue;
}
const leaf = getPath(products, path);
const files = Array.isArray(leaf[record.issueType]) ? leaf[record.issueType] : [];
leaf[record.issueType] = Array.from(new Set([...files, record.filename])).sort(compareIssueFilenames);
}
return { products, unmatched };
}
export function updateManifest(manifest, currentPaths) {
if (!manifest || manifest.schema !== 1 || !Array.isArray(manifest.nodes)) {
throw new Error('Product-tree manifest must use schema 1 with a nodes array.');
}
const active = new Set();
manifest.nodes.forEach((path, slot) => {
if (path === null) return;
if (typeof path !== 'string' || !path) throw new Error(`Invalid manifest entry at slot ${slot}.`);
if (active.has(path)) throw new Error(`Duplicate manifest path: ${path}`);
active.add(path);
});
const current = new Set(currentPaths);
const appended = currentPaths.filter(path => !active.has(path));
manifest.nodes.push(...appended);
const missing = Array.from(active).filter(path => !current.has(path));
return { manifest, appended, missing };
}
export async function updateProductsFromIssues({ issuesDir, productsPath, manifestPath }) {
const [productsText, manifestText, records] = await Promise.all([
readFile(productsPath, 'utf8'),
readFile(manifestPath, 'utf8'),
collectIssueFiles(issuesDir)
]);
if (records.length === 0) {
throw new Error("No '<version>.md' issue files found; refusing to rewrite products.json");
}
const products = JSON.parse(productsText);
if (!products || typeof products !== 'object' || Array.isArray(products)) {
throw new Error('products.json must contain a top-level object.');
}
const rebuilt = rebuildProducts(products, records);
const paths = enumerateTreePaths(buildProductTree(rebuilt.products));
const manifestUpdate = updateManifest(JSON.parse(manifestText), paths);
await writeFile(productsPath, `${JSON.stringify(rebuilt.products, null, 2)}\n`, 'utf8');
if (manifestUpdate.appended.length > 0) {
await writeFile(manifestPath, `${JSON.stringify(manifestUpdate.manifest, null, 2)}\n`, 'utf8');
}
return {
records: records.length,
unmatched: rebuilt.unmatched,
appended: manifestUpdate.appended,
missing: manifestUpdate.missing
};
}
function parseArgs(argv) {
const options = {
issuesDir: join(REPO_ROOT, 'web/data/issues'),
productsPath: join(REPO_ROOT, 'web/data/products.json'),
manifestPath: join(REPO_ROOT, 'web/data/product-tree-manifest.json')
};
const flags = new Map([
['--issues-dir', 'issuesDir'],
['--products-json', 'productsPath'],
['--manifest-json', 'manifestPath']
]);
for (let index = 0; index < argv.length; index += 2) {
const property = flags.get(argv[index]);
if (!property || argv[index + 1] === undefined) throw new Error(`Invalid argument: ${argv[index] ?? ''}`);
options[property] = resolve(argv[index + 1]);
}
return options;
}
export async function runUpdateProductsCli(argv = process.argv.slice(2)) {
const options = parseArgs(argv);
const result = await updateProductsFromIssues(options);
console.log(`Updated ${options.productsPath} from ${result.records} issue files.`);
console.log(`Appended ${result.appended.length} manifest path(s).`);
if (result.missing.length) console.warn(`${result.missing.length} manifest path(s) are no longer rendered; slots were preserved.`);
if (result.unmatched.length) console.warn(`${result.unmatched.length} issue file(s) did not match a products.json leaf.`);
return result;
}
if (process.argv[1] && import.meta.url === pathToFileURL(resolve(process.argv[1])).href) {
await runUpdateProductsCli();
}
-217
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@@ -1,217 +0,0 @@
#!/usr/bin/env python3
"""Update products.json entries from discovered issue data files."""
from __future__ import annotations
import argparse
import json
import re
from pathlib import Path
from typing import Any
ISSUE_TYPES = {"addressed", "known"}
VERSION_FILENAME_RE = re.compile(r"^(?P<version>[^.]+(?:\.[^.]+)*)\.md$")
HOTFIX_RE = re.compile(r"^(?P<base>\d+(?:\.\d+)*)(?:-h(?P<hotfix>\d+))?$")
def parse_args() -> argparse.Namespace:
"""Parse command line arguments for input and output paths."""
parser = argparse.ArgumentParser(
description="Update products.json from issue files."
)
parser.add_argument(
"--issues-dir",
default="web/data/issues",
help="Directory containing product issue files.",
)
parser.add_argument(
"--products-json",
default="web/data/products.json",
help="Path to products.json.",
)
return parser.parse_args()
def collect_issue_files(issues_dir: Path) -> list[tuple[str, str, str, str]]:
"""Collect all issue files with '<version>.md' naming."""
records: list[tuple[str, str, str, str]] = []
for file_path in sorted(p for p in issues_dir.rglob("*") if p.is_file()):
relative = file_path.relative_to(issues_dir)
if len(relative.parts) != 3:
continue
product, issue_type, filename = relative.parts
if issue_type not in ISSUE_TYPES:
continue
version = parse_issue_filename(filename)
if version is None:
continue
records.append((product, issue_type, version, filename))
return records
def parse_issue_filename(filename: str) -> str | None:
"""Parse '<version>.md' issue filenames and return version."""
match = VERSION_FILENAME_RE.match(filename)
if not match:
return None
return match.group("version")
def clear_leaf_issue_arrays(node: Any) -> None:
"""Reset addressed/known arrays on every issue leaf in products.json."""
if isinstance(node, dict):
if "addressed" in node or "known" in node:
node["addressed"] = []
node["known"] = []
return
for value in node.values():
clear_leaf_issue_arrays(value)
def is_issue_leaf(node: Any) -> bool:
"""Return whether a node is a leaf containing issue arrays."""
return isinstance(node, dict) and ("addressed" in node or "known" in node)
def pick_target_leaf_path(products: dict[str, Any], product: str, version: str) -> list[str] | None:
"""Choose the best matching product tree path for a version."""
parts = version.split(".")
if not parts:
return None
major = parts[0]
minor = f"{parts[0]}.{parts[1]}" if len(parts) > 1 else parts[0]
candidates = [
[product, major, minor],
[product, major],
[product],
]
for path in candidates:
node = get_path(products, path)
if is_issue_leaf(node):
return path
return None
def get_path(data: Any, path: list[str]) -> Any:
"""Traverse nested dict keys and return the value at path, if present."""
current = data
for key in path:
if not isinstance(current, dict) or key not in current:
return None
current = current[key]
return current
def parse_release_prefix(prefix: str) -> tuple[tuple[int, ...], int]:
"""Extract numeric base version parts and optional hotfix number."""
match = HOTFIX_RE.match(prefix)
if not match:
return tuple(), -1
base_parts = tuple(int(part) for part in match.group("base").split("."))
hotfix_group = match.group("hotfix")
hotfix = int(hotfix_group) if hotfix_group is not None else -1
return base_parts, hotfix
def filename_sort_key(filename: str) -> tuple[tuple[int, ...], int, int, str]:
"""Build a sort key that orders base versions before hotfixes."""
prefix = filename.rsplit(".", 1)[0]
base_parts, hotfix = parse_release_prefix(prefix)
is_hotfix = 1 if hotfix >= 0 else 0
return base_parts, is_hotfix, hotfix, filename
def add_file_to_leaf(
products: dict[str, Any],
path: list[str],
issue_type: str,
filename: str,
) -> None:
"""Insert an issue filename into the target leaf with stable sorting."""
leaf = get_path(products, path)
if not isinstance(leaf, dict):
return
files = leaf.get(issue_type)
if not isinstance(files, list):
files = []
files.append(filename)
leaf[issue_type] = sorted(set(files), key=filename_sort_key)
def update_products(issues_dir: Path, products_path: Path) -> None:
"""Rebuild product issue file lists from crawled issue files."""
if not issues_dir.is_dir():
raise FileNotFoundError(f"Issues directory not found: {issues_dir}")
if not products_path.is_file():
raise FileNotFoundError(f"products.json not found: {products_path}")
with products_path.open("r", encoding="utf-8") as f:
products = json.load(f)
if not isinstance(products, dict):
raise ValueError("products.json must contain a top-level object")
records = collect_issue_files(issues_dir)
if not records:
raise ValueError(
"No '<version>.md' issue files found; refusing to rewrite products.json"
)
clear_leaf_issue_arrays(products)
for product, issue_type, version, filename in sorted(
records,
key=lambda r: (r[0], r[1], r[2]),
):
path = pick_target_leaf_path(products, product, version)
if path is None:
continue
add_file_to_leaf(products, path, issue_type, filename)
with products_path.open("w", encoding="utf-8") as f:
json.dump(products, f, indent=2)
f.write("\n")
def main() -> int:
"""Entrypoint for command-line usage."""
args = parse_args()
script_dir = Path(__file__).resolve().parent
repo_root = script_dir.parent
issues_dir = (repo_root / args.issues_dir).resolve()
products_path = (repo_root / args.products_json).resolve()
update_products(issues_dir=issues_dir, products_path=products_path)
print(f"Updated {products_path} from {issues_dir}")
return 0
if __name__ == "__main__":
raise SystemExit(main())
@@ -0,0 +1,30 @@
[
{
"id": "PAN-242777",
"summary": "Fixed an issue where users previously reported limitations due to session count caps when utilizing **Web Proxy** features on PA-5400 Series Firewalls. To address these performance complaints and support higher traffic volumes, we have increased the maximum session capacity on specific **PA-5400F** series platforms, leveraging available system memory. This update ensures greater capacity and stability for high-volume environments.The supported session limits are:| Platform | Max Sessions |\n| -------- | ------------ |\n| PA-5410 | 95K |\n| PA-5420 | 95K |\n| PA-5430 | 95K |\n| PA-5440 | 225K |\n| PA-5445 | 250K |\n| PA-5450 | 1.28M |",
"resolved": "",
"caveat": "",
"renderedHtml": "<p>Fixed an issue where users previously reported limitations due to session count caps when utilizing <strong>Web Proxy</strong> features on PA-5400 Series Firewalls. To address these performance complaints and support higher traffic volumes, we have increased the maximum session capacity on specific <strong>PA-5400F</strong> series platforms, leveraging available system memory. This update ensures greater capacity and stability for high-volume environments.The supported session limits are:| Platform | Max Sessions |\n| -------- | ------------ |\n| PA-5410 | 95K |\n| PA-5420 | 95K |\n| PA-5430 | 95K |\n| PA-5440 | 225K |\n| PA-5445 | 250K |\n| PA-5450 | 1.28M |</p>\n"
},
{
"id": "PAN-291499",
"summary": "Fixed an issue where newly deployed firewalls were unable to connect to the Strata Logging Service (SLS) until after a reboot, license fetch, or management server restart.",
"resolved": "",
"caveat": "VM-Series firewalls on Amazon Web Services (AWS) environments only",
"renderedHtml": "<div><em>Caveat: VM-Series firewalls on Amazon Web Services (AWS) environments only</em></div><p>Fixed an issue where newly deployed firewalls were unable to connect to the Strata Logging Service (SLS) until after a reboot, license fetch, or management server restart.</p>\n"
},
{
"id": "PAN-288726",
"summary": "Fixed an issue where the useridd process stopped responding due to a Security policy rule ID being set to 0, which caused the last configuration retrieval to fail.",
"resolved": "",
"caveat": "",
"renderedHtml": "<p>Fixed an issue where the useridd process stopped responding due to a Security policy rule ID being set to 0, which caused the last configuration retrieval to fail.</p>\n"
},
{
"id": "PAN-287133",
"summary": "Fixed an issue on the Panorama web interface where assigning a policy rule to a group at the top or bottom of the list changed the order of other policy rules.",
"resolved": "",
"caveat": "",
"renderedHtml": "<p>Fixed an issue on the Panorama web interface where assigning a policy rule to a group at the top or bottom of the list changed the order of other policy rules.</p>\n"
}
]
+70
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@@ -0,0 +1,70 @@
import assert from 'node:assert/strict';
import { mkdtemp, mkdir, readFile, rm, writeFile } from 'node:fs/promises';
import { join } from 'node:path';
import { tmpdir } from 'node:os';
import test from 'node:test';
import { buildProductTree, enumerateTreePaths } from '../web/js/product-tree-model.js';
import { updateProductsFromIssues } from '../scripts/update-products-from-issues.mjs';
test('product updater rebuilds products and append-only manifest idempotently', async t => {
const root = await mkdtemp(join(tmpdir(), 'firewallissues-update-'));
t.after(() => rm(root, { recursive: true, force: true }));
const issuesDir = join(root, 'issues');
const productsPath = join(root, 'products.json');
const manifestPath = join(root, 'manifest.json');
await mkdir(join(issuesDir, 'Product', 'addressed'), { recursive: true });
await mkdir(join(issuesDir, 'Product', 'known'), { recursive: true });
await writeFile(join(issuesDir, 'Product', 'addressed', '1.2.3-h2.md'), 'addressed');
await writeFile(join(issuesDir, 'Product', 'addressed', '1.2.3.md'), 'addressed');
await writeFile(join(issuesDir, 'Product', 'known', '1.2.4.md'), 'known');
const initialProducts = {
Product: {
1: {
'1.2': {
addressed: ['obsolete.md'],
known: []
}
}
}
};
const rootPath = JSON.stringify(['Product']);
await writeFile(productsPath, `${JSON.stringify(initialProducts, null, 2)}\n`);
await writeFile(manifestPath, `${JSON.stringify({ schema: 1, nodes: [rootPath, 'legacy-path', null] }, null, 2)}\n`);
const first = await updateProductsFromIssues({ issuesDir, productsPath, manifestPath });
assert.equal(first.records, 3);
assert.equal(first.unmatched.length, 0);
assert.ok(first.appended.length > 0);
assert.deepEqual(first.missing, ['legacy-path']);
const products = JSON.parse(await readFile(productsPath, 'utf8'));
assert.deepEqual(products.Product[1]['1.2'].addressed, ['1.2.3.md', '1.2.3-h2.md']);
assert.deepEqual(products.Product[1]['1.2'].known, ['1.2.4.md']);
const manifest = JSON.parse(await readFile(manifestPath, 'utf8'));
assert.deepEqual(manifest.nodes.slice(0, 3), [rootPath, 'legacy-path', null]);
const renderedPaths = enumerateTreePaths(buildProductTree(products));
assert.ok(renderedPaths.every(path => manifest.nodes.includes(path)));
const second = await updateProductsFromIssues({ issuesDir, productsPath, manifestPath });
assert.deepEqual(second.appended, []);
assert.deepEqual(JSON.parse(await readFile(manifestPath, 'utf8')), manifest);
});
test('product updater refuses to rewrite when no issue files are found', async t => {
const root = await mkdtemp(join(tmpdir(), 'firewallissues-empty-update-'));
t.after(() => rm(root, { recursive: true, force: true }));
const issuesDir = join(root, 'issues');
const productsPath = join(root, 'products.json');
const manifestPath = join(root, 'manifest.json');
await mkdir(issuesDir);
await writeFile(productsPath, '{}\n');
await writeFile(manifestPath, '{"schema":1,"nodes":[]}\n');
await assert.rejects(
updateProductsFromIssues({ issuesDir, productsPath, manifestPath }),
/No '<version>\.md' issue files found/
);
assert.equal(await readFile(productsPath, 'utf8'), '{}\n');
});
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@@ -0,0 +1,144 @@
import { getSortedKeys } from './sort.js';
export function expandFilePrefixLevel(root) {
if (!root || typeof root !== 'object') {
return root;
}
return transformNode(root);
}
function transformNode(node) {
if (!node || typeof node !== 'object' || Array.isArray(node)) {
return node;
}
const hasIssueArrays = Object.prototype.hasOwnProperty.call(node, 'addressed') ||
Object.prototype.hasOwnProperty.call(node, 'known');
const childKeys = Object.keys(node).filter(key => key !== 'addressed' && key !== 'known');
const transformedChildren = Object.fromEntries(
childKeys.map(key => [key, transformNode(node[key])])
);
if (!hasIssueArrays) {
return transformedChildren;
}
const addressed = Array.isArray(node.addressed) ? node.addressed : [];
const known = Array.isArray(node.known) ? node.known : [];
if (addressed.length + known.length === 0) {
return childKeys.length > 0 ? transformedChildren : { addressed: [], known: [] };
}
const groupedByPrefix = {};
for (const [issueType, files] of [['addressed', addressed], ['known', known]]) {
for (const fileName of files) {
const prefix = getFilePrefix(fileName);
groupedByPrefix[prefix] ??= { addressed: [], known: [] };
groupedByPrefix[prefix][issueType].push(fileName);
}
}
const transformedIssueFiles = groupHotfixPrefixes(groupedByPrefix);
return childKeys.length === 0
? transformedIssueFiles
: mergeTreeNodes(transformedChildren, transformedIssueFiles);
}
function groupHotfixPrefixes(groupedByPrefix) {
const byFamily = {};
for (const prefix of Object.keys(groupedByPrefix)) {
const family = getReleaseFamily(prefix);
byFamily[family] ??= [];
byFamily[family].push(prefix);
}
const result = {};
for (const [family, members] of Object.entries(byFamily)) {
const hasHotfixes = members.length > 1 || members.some(member => member !== family);
if (!hasHotfixes && members[0] === family) {
result[family] = groupedByPrefix[family];
} else {
result[family] = Object.fromEntries(
members.map(member => [member, groupedByPrefix[member]])
);
}
}
return result;
}
function getReleaseFamily(prefix) {
return String(prefix || '').replace(/-h\d+$/i, '');
}
function getFilePrefix(fileName) {
const baseName = String(fileName || '');
const underscoreIndex = baseName.indexOf('_');
if (underscoreIndex <= 0) {
return baseName.replace(/\.json$/i, '') || 'unknown';
}
return baseName.slice(0, underscoreIndex);
}
function mergeTreeNodes(left, right) {
if (!isObjectNode(left)) return right;
if (!isObjectNode(right)) return left;
const merged = { ...left };
for (const [key, rightValue] of Object.entries(right)) {
const leftValue = merged[key];
if (key === 'addressed' || key === 'known') {
const leftFiles = Array.isArray(leftValue) ? leftValue : [];
const rightFiles = Array.isArray(rightValue) ? rightValue : [];
merged[key] = Array.from(new Set([...leftFiles, ...rightFiles]));
} else if (isObjectNode(leftValue) && isObjectNode(rightValue)) {
merged[key] = mergeTreeNodes(leftValue, rightValue);
} else {
merged[key] = rightValue;
}
}
return merged;
}
function isObjectNode(value) {
return Boolean(value) && typeof value === 'object' && !Array.isArray(value);
}
export function toTreeNodes(value, path = []) {
return getSortedKeys(value)
.filter(key => key !== 'addressed' && key !== 'known')
.map(key => {
const childValue = value[key];
const childPath = [...path, key];
const isObject = childValue && typeof childValue === 'object';
const hasFiles = isObject && ('addressed' in childValue || 'known' in childValue);
const children = isObject ? toTreeNodes(childValue, childPath) : [];
return {
id: JSON.stringify(childPath),
label: key,
selectable: hasFiles || children.length > 0,
metadata: {
path: childPath,
addressed: hasFiles && Array.isArray(childValue.addressed) ? childValue.addressed : [],
known: hasFiles && Array.isArray(childValue.known) ? childValue.known : []
},
...(children.length > 0 ? { children } : {})
};
});
}
export function enumerateTreePaths(nodes) {
const paths = [];
function visit(children, parentPath = '') {
for (const node of children) {
const path = parentPath ? `${parentPath}>${node.id}` : node.id;
paths.push(path);
visit(node.children ?? [], path);
}
}
visit(nodes);
return paths;
}
export function buildProductTree(products) {
return toTreeNodes(expandFilePrefixLevel(products));
}
+1 -148
View File
@@ -1,6 +1,7 @@
import { loadIssuesForCheckedPaths } from './issues.js';
import { getCheckedFileRefs, initializeTree, renderProductTree, restoreTreeState } from './tree.js';
import { applyIssueSearchFilter, getIssueTypeFilters, initializeUI } from './ui.js';
import { expandFilePrefixLevel } from './product-tree-model.js';
document.addEventListener('DOMContentLoaded', () => {
initializeUI({ onSelectionChange: refreshIssuesForCurrentSelection });
@@ -29,151 +30,3 @@ function loadProductTree() {
})
.catch(error => console.error('Error loading products:', error));
}
function expandFilePrefixLevel(root) {
if (!root || typeof root !== 'object') {
return root;
}
return transformNode(root);
}
function transformNode(node) {
if (!node || typeof node !== 'object' || Array.isArray(node)) {
return node;
}
const hasIssueArrays = Object.prototype.hasOwnProperty.call(node, 'addressed') ||
Object.prototype.hasOwnProperty.call(node, 'known');
const childKeys = Object.keys(node).filter(key => key !== 'addressed' && key !== 'known');
const transformedChildren = {};
childKeys.forEach(key => {
transformedChildren[key] = transformNode(node[key]);
});
if (!hasIssueArrays) {
return transformedChildren;
}
const addressed = Array.isArray(node.addressed) ? node.addressed : [];
const known = Array.isArray(node.known) ? node.known : [];
const allFiles = [...addressed, ...known];
if (allFiles.length === 0) {
if (childKeys.length > 0) {
return transformedChildren;
}
return {
addressed: [],
known: []
};
}
const groupedByPrefix = {};
addressed.forEach(fileName => {
const prefix = getFilePrefix(fileName);
if (!groupedByPrefix[prefix]) {
groupedByPrefix[prefix] = { addressed: [], known: [] };
}
groupedByPrefix[prefix].addressed.push(fileName);
});
known.forEach(fileName => {
const prefix = getFilePrefix(fileName);
if (!groupedByPrefix[prefix]) {
groupedByPrefix[prefix] = { addressed: [], known: [] };
}
groupedByPrefix[prefix].known.push(fileName);
});
const transformedIssueFiles = groupHotfixPrefixes(groupedByPrefix);
if (childKeys.length === 0) {
return transformedIssueFiles;
}
return mergeTreeNodes(transformedChildren, transformedIssueFiles);
}
function groupHotfixPrefixes(groupedByPrefix) {
const byFamily = {};
Object.keys(groupedByPrefix).forEach(prefix => {
const family = getReleaseFamily(prefix);
if (!byFamily[family]) {
byFamily[family] = [];
}
byFamily[family].push(prefix);
});
const result = {};
Object.keys(byFamily).forEach(family => {
const members = byFamily[family];
const hasHotfixes = members.length > 1 || members.some(member => member !== family);
if (!hasHotfixes && members[0] === family) {
result[family] = groupedByPrefix[family];
return;
}
const branch = {};
members.forEach(member => {
branch[member] = groupedByPrefix[member];
});
result[family] = branch;
});
return result;
}
function getReleaseFamily(prefix) {
return String(prefix || '').replace(/-h\d+$/i, '');
}
function getFilePrefix(fileName) {
const baseName = String(fileName || '');
const underscoreIndex = baseName.indexOf('_');
if (underscoreIndex <= 0) {
return baseName.replace(/\.json$/i, '') || 'unknown';
}
return baseName.slice(0, underscoreIndex);
}
function mergeTreeNodes(left, right) {
if (!isObjectNode(left)) {
return right;
}
if (!isObjectNode(right)) {
return left;
}
const merged = { ...left };
Object.keys(right).forEach(key => {
const leftValue = merged[key];
const rightValue = right[key];
if (key === 'addressed' || key === 'known') {
const leftFiles = Array.isArray(leftValue) ? leftValue : [];
const rightFiles = Array.isArray(rightValue) ? rightValue : [];
merged[key] = Array.from(new Set([...leftFiles, ...rightFiles]));
return;
}
if (isObjectNode(leftValue) && isObjectNode(rightValue)) {
merged[key] = mergeTreeNodes(leftValue, rightValue);
return;
}
merged[key] = rightValue;
});
return merged;
}
function isObjectNode(value) {
return Boolean(value) && typeof value === 'object' && !Array.isArray(value);
}
+2 -25
View File
@@ -1,5 +1,5 @@
import { CheckboxTree, loadManifest } from '../vendor/checkbox-tree/checkbox-tree.js';
import { getSortedKeys } from './sort.js';
import { toTreeNodes } from './product-tree-model.js';
const STORAGE_KEY = 'tree-state-v2';
let productTree = null;
@@ -14,6 +14,7 @@ export function initializeTree(containerId, onSelectionChange) {
productTree = new CheckboxTree(container, {
storageKey: STORAGE_KEY,
initiallyCollapsed: true,
stateEncoding: 'tiered',
onSelectionChange: event => {
onSelectionChange(event);
pushTreeState();
@@ -82,30 +83,6 @@ function pushTreeState() {
}
}
function toTreeNodes(value, path = []) {
return getSortedKeys(value)
.filter(key => key !== 'addressed' && key !== 'known')
.map(key => {
const childValue = value[key];
const childPath = [...path, key];
const isObject = childValue && typeof childValue === 'object';
const hasFiles = isObject && ('addressed' in childValue || 'known' in childValue);
const children = isObject ? toTreeNodes(childValue, childPath) : [];
return {
id: JSON.stringify(childPath),
label: key,
selectable: hasFiles || children.length > 0,
metadata: {
path: childPath,
addressed: hasFiles && Array.isArray(childValue.addressed) ? childValue.addressed : [],
known: hasFiles && Array.isArray(childValue.known) ? childValue.known : []
},
...(children.length > 0 ? { children } : {})
};
});
}
function dedupeFileRefs(fileRefs) {
const seen = new Set();
return fileRefs.filter(({ productKey, fileName }) => {
+14 -2
View File
@@ -43,8 +43,8 @@ tree.setData([
]);
```
For applications without a bundler, serve or copy the two files in `src/` and
use relative URLs:
For applications without a bundler, serve or copy the `src/` directory and use
relative URLs. The main module imports its state-codec modules alongside it:
```html
<link rel="stylesheet" href="./checkbox-tree.css">
@@ -78,6 +78,9 @@ Options:
- `onSelectionChange` receives `{ selectedIds, selectedNodes }`.
- `manifest` optionally supplies a parsed manifest and automatically restores
state from `window.location.hash` after `setData()`.
- `stateEncoding` selects `"adaptive"` (the default), `"dense"`, or `"tiered"`.
The website's configured value is the URL-format contract and is not embedded
in the fragment.
## Shareable URL state
@@ -105,6 +108,15 @@ Use `validateManifestEvolution(previous, next)` in a build check to reject
removed slots and tombstone reuse; path changes are reported for deliberate
rename/move review.
With `stateEncoding: "tiered"`, `c1` stores root checked state and each deeper
`cN` field stores nodes whose checked state differs from their parent. Expansion
does not inherit: every `xN` stores the actual expanded branches at that depth,
with collapsed as the baseline. Each tier field uses the adaptive codec. The
`n` field records manifest coverage so nodes appended later still default to
false. A non-selectable parent supplies a false checked baseline. With
`stateEncoding: "dense"`, `c` and `x` contain trimmed
least-significant-bit-first bitsets.
Styling is namespaced under `.checkbox-tree`. Override the custom properties
`--checkbox-tree-indent`, `--checkbox-tree-toggle-size`, and
`--checkbox-tree-hover-color` in the consuming application.
+40 -303
View File
@@ -1,311 +1,44 @@
// Dependency-free checkbox tree widget. State serialization lives in focused sibling modules.
import {
PATH_DELIMITER,
assertStateEncoding
} from './state-codec.js';
import {
restoreStateFromLocation,
serializeStateToFragment,
validateManifest
} from './tree-state.js';
export {
PATH_DELIMITER,
SERIALIZATION_VERSION,
base64UrlToBytes,
bytesToBase64Url,
decodeAdaptiveBitset,
encodeAdaptiveBitset,
getBit,
loadManifest,
setBit
} from './state-codec.js';
export {
applyTreeState,
decodeTreeState,
encodeTreeState,
restoreStateFromLocation,
serializeStateToFragment,
validateManifest,
validateManifestEvolution
} from './tree-state.js';
const DEFAULT_OPTIONS = {
initiallyCollapsed: true,
initiallySelected: false,
storageKey: null,
onSelectionChange: null,
manifest: null
manifest: null,
stateEncoding: 'adaptive'
};
const SERIALIZATION_VERSION = 1;
const PATH_DELIMITER = '>';
export function loadManifest(source) {
let records;
let schema = 1;
if (typeof source === 'string') {
records = source.split(/\r?\n/)
.map(line => line.trim())
.filter(line => line && !line.startsWith('#'))
.map(line => line === '!deleted' ? null : line);
} else if (source && typeof source === 'object' && Array.isArray(source.nodes)) {
schema = source.schema;
records = source.nodes;
} else if (source && Array.isArray(source.slots)) {
return normalizeManifest(source.schema, source.slots.map(slot => slot?.deleted ? null : slot?.path));
} else {
throw new TypeError('CheckboxTree manifest must be text or an object with a nodes array.');
}
return normalizeManifest(schema, records);
}
function normalizeManifest(schema, records) {
if (schema !== 1) {
throw new Error(`Unsupported CheckboxTree manifest schema: ${schema}`);
}
const pathToSlot = new Map();
const slots = records.map((record, index) => {
if (record === null || record === '!deleted') {
return { path: null, deleted: true };
}
if (typeof record !== 'string' || !record || record.trim() !== record) {
throw new TypeError(`Invalid CheckboxTree manifest entry at slot ${index}.`);
}
if (pathToSlot.has(record)) {
throw new Error(`Duplicate CheckboxTree manifest path: ${record}`);
}
pathToSlot.set(record, index);
return { path: record, deleted: false };
});
return { schema: 1, slots, pathToSlot };
}
export function setBit(bytes, bitIndex, value) {
const byteIndex = Math.floor(bitIndex / 8);
const mask = 1 << (bitIndex % 8);
if (value) bytes[byteIndex] |= mask;
else bytes[byteIndex] &= ~mask;
}
export function getBit(bytes, bitIndex) {
const byteIndex = Math.floor(bitIndex / 8);
return byteIndex < bytes.length && (bytes[byteIndex] & (1 << (bitIndex % 8))) !== 0;
}
export function bytesToBase64Url(bytes) {
let binary = '';
for (const byte of bytes) binary += String.fromCharCode(byte);
return btoa(binary).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/g, '');
}
export function base64UrlToBytes(value, maximumLength = Infinity) {
if (typeof value !== 'string' || !/^[A-Za-z0-9_-]*$/.test(value) || value.length % 4 === 1) {
throw new Error('Invalid Base64URL value.');
}
if (Number.isFinite(maximumLength) && value.length > Math.ceil(maximumLength * 4 / 3) + 2) {
throw new Error('Encoded tree state exceeds the manifest size.');
}
const base64 = value.replace(/-/g, '+').replace(/_/g, '/');
const binary = atob(base64 + '='.repeat((4 - base64.length % 4) % 4));
if (binary.length > maximumLength) throw new Error('Encoded tree state exceeds the manifest size.');
return Uint8Array.from(binary, character => character.charCodeAt(0));
}
function trimTrailingZeroBytes(bytes) {
let end = bytes.length;
while (end && bytes[end - 1] === 0) end--;
return bytes.slice(0, end);
}
function encodeUnsignedVarint(value) {
const bytes = [];
do {
let byte = value & 0x7f;
value = Math.floor(value / 128);
if (value) byte |= 0x80;
bytes.push(byte);
} while (value);
return bytes;
}
function decodeUnsignedVarint(bytes, offset) {
let value = 0;
let multiplier = 1;
for (let index = offset; index < bytes.length && index < offset + 8; index++) {
const byte = bytes[index];
value += (byte & 0x7f) * multiplier;
if ((byte & 0x80) === 0) return { value, offset: index + 1 };
multiplier *= 128;
if (!Number.isSafeInteger(value) || !Number.isSafeInteger(multiplier)) break;
}
throw new Error('Invalid adaptive tree-state integer.');
}
function encodeSparseIndexes(indexes) {
const bytes = [];
let previous = -1;
for (const index of indexes) {
bytes.push(...encodeUnsignedVarint(index - previous - 1));
previous = index;
}
return bytes;
}
function decodeSparseIndexes(bytes, offset, limit) {
const indexes = new Set();
let previous = -1;
while (offset < bytes.length) {
const decoded = decodeUnsignedVarint(bytes, offset);
const index = previous + decoded.value + 1;
if (index >= limit) throw new Error('Sparse tree state contains an out-of-range slot.');
indexes.add(index);
previous = index;
offset = decoded.offset;
}
return indexes;
}
export function encodeAdaptiveBitset(values, slotCount) {
const enabled = [];
const disabled = [];
const denseBytes = new Uint8Array(Math.ceil(slotCount / 8));
for (const [slot, value] of values) {
(value ? enabled : disabled).push(slot);
setBit(denseBytes, slot, value);
}
enabled.sort((left, right) => left - right);
disabled.sort((left, right) => left - right);
if (enabled.length === 0) return new Uint8Array();
const candidates = [
Uint8Array.from([0, ...trimTrailingZeroBytes(denseBytes)]),
Uint8Array.from([1, ...encodeSparseIndexes(enabled)]),
Uint8Array.from([2, ...encodeUnsignedVarint(slotCount), ...encodeSparseIndexes(disabled)])
];
return candidates.reduce((shortest, candidate) =>
candidate.length < shortest.length ? candidate : shortest
);
}
export function decodeAdaptiveBitset(bytes, slotCount) {
if (bytes.length === 0) return () => false;
const mode = bytes[0];
if (mode === 0) {
const dense = bytes.slice(1);
if (dense.length > Math.ceil(slotCount / 8)) {
throw new Error('Dense tree state exceeds the manifest size.');
}
return slot => getBit(dense, slot);
}
if (mode === 1) {
const enabled = decodeSparseIndexes(bytes, 1, slotCount);
return slot => enabled.has(slot);
}
if (mode === 2) {
const coverage = decodeUnsignedVarint(bytes, 1);
if (coverage.value > slotCount) throw new Error('Tree-state coverage exceeds the manifest size.');
const disabled = decodeSparseIndexes(bytes, coverage.offset, coverage.value);
return slot => slot < coverage.value && !disabled.has(slot);
}
throw new Error('Unknown adaptive tree-state mode.');
}
function asManifest(manifest) {
return manifest?.pathToSlot instanceof Map ? manifest : loadManifest(manifest);
}
export function validateManifest(manifest, tree) {
const normalized = asManifest(manifest);
const treePaths = new Set(tree.nodesByPath.keys());
return {
valid: Array.from(treePaths).every(path => normalized.pathToSlot.has(path)),
unregisteredPaths: Array.from(treePaths).filter(path => !normalized.pathToSlot.has(path)),
missingPaths: normalized.slots
.filter(slot => !slot.deleted && !treePaths.has(slot.path))
.map(slot => slot.path)
};
}
export function validateManifestEvolution(previous, next) {
const oldManifest = asManifest(previous);
const newManifest = asManifest(next);
const errors = [];
if (newManifest.slots.length < oldManifest.slots.length) {
errors.push('Manifest slots cannot be removed; use tombstones.');
}
oldManifest.slots.forEach((oldSlot, index) => {
const newSlot = newManifest.slots[index];
if (!newSlot) return;
if (oldSlot.deleted && !newSlot.deleted) {
errors.push(`Tombstoned slot ${index} cannot be reused.`);
}
if (!oldSlot.deleted && !newSlot.deleted && oldSlot.path !== newSlot.path) {
errors.push(`Slot ${index} changed path; confirm this is a logical rename or move.`);
}
});
return { valid: errors.length === 0, errors };
}
export function encodeTreeState(tree, manifest) {
const normalized = asManifest(manifest);
const checkedValues = new Map();
const expandedValues = new Map();
for (const [path, node] of tree.nodesByPath) {
const slot = normalized.pathToSlot.get(path);
if (slot === undefined) continue;
const item = tree.itemForNode(node.id);
const checkbox = item && tree.directCheckbox(item);
const toggle = item?.querySelector(':scope > .checkbox-tree__row > .checkbox-tree__toggle');
checkedValues.set(slot, Boolean(checkbox?.checked));
expandedValues.set(slot, toggle?.getAttribute('aria-expanded') === 'true');
}
const checkedValue = bytesToBase64Url(encodeAdaptiveBitset(checkedValues, normalized.slots.length));
const expandedValue = bytesToBase64Url(encodeAdaptiveBitset(expandedValues, normalized.slots.length));
return { version: SERIALIZATION_VERSION, checked: checkedValue || null, expanded: expandedValue || null };
}
export function decodeTreeState(fragment, manifest) {
const normalized = asManifest(manifest);
const value = fragment.startsWith('#') ? fragment.slice(1) : fragment;
const params = new URLSearchParams(value);
if (params.get('v') !== String(SERIALIZATION_VERSION)) {
return { applied: false, version: params.get('v'), warnings: ['Missing or unsupported serialization version.'] };
}
const maximumLength = Math.max(
Math.ceil(normalized.slots.length / 8) + 1,
normalized.slots.length * 2 + 10
);
try {
const checked = base64UrlToBytes(params.get('c') ?? '', maximumLength);
const expanded = base64UrlToBytes(params.get('x') ?? '', maximumLength);
decodeAdaptiveBitset(checked, normalized.slots.length);
decodeAdaptiveBitset(expanded, normalized.slots.length);
return {
applied: true,
version: SERIALIZATION_VERSION,
checked,
expanded,
warnings: []
};
} catch (error) {
return { applied: false, version: SERIALIZATION_VERSION, warnings: [error.message] };
}
}
export function applyTreeState(tree, manifest, state) {
if (!state?.applied) return false;
const normalized = asManifest(manifest);
let isChecked;
let isExpanded;
try {
isChecked = decodeAdaptiveBitset(state.checked, normalized.slots.length);
isExpanded = decodeAdaptiveBitset(state.expanded, normalized.slots.length);
} catch {
return false;
}
for (const [path, node] of tree.nodesByPath) {
const slot = normalized.pathToSlot.get(path);
if (slot === undefined) continue;
const item = tree.itemForNode(node.id);
const checkbox = item && tree.directCheckbox(item);
if (checkbox && !checkbox.disabled) checkbox.checked = isChecked(slot);
tree.setExpanded(item, isExpanded(slot));
}
tree.updateAllParentCheckboxes();
return true;
}
export function serializeStateToFragment(tree, manifest) {
const state = encodeTreeState(tree, manifest);
const params = new URLSearchParams({ v: String(state.version) });
if (state.checked) params.set('c', state.checked);
if (state.expanded) params.set('x', state.expanded);
return `#${params}`;
}
export function restoreStateFromLocation(tree, manifest, location = window.location) {
const state = decodeTreeState(location.hash ?? '', manifest);
if (state.applied) applyTreeState(tree, manifest, state);
return state;
}
export class CheckboxTree {
constructor(container, options = {}) {
if (!(container instanceof Element)) {
@@ -314,8 +47,10 @@ export class CheckboxTree {
this.container = container;
this.options = { ...DEFAULT_OPTIONS, ...options };
assertStateEncoding(this.options.stateEncoding);
this.nodesById = new Map();
this.nodesByPath = new Map();
this.itemsById = new Map();
this.rootNodes = [];
this.handleChange = this.handleChange.bind(this);
this.handleClick = this.handleClick.bind(this);
@@ -332,6 +67,7 @@ export class CheckboxTree {
this.nodesById.clear();
this.nodesByPath.clear();
this.itemsById.clear();
this.rootNodes = nodes;
this.indexNodes(nodes);
this.render();
@@ -371,6 +107,7 @@ export class CheckboxTree {
this.container.replaceChildren();
this.nodesById.clear();
this.nodesByPath.clear();
this.itemsById.clear();
}
indexNodes(nodes, parentPath = '') {
@@ -408,6 +145,7 @@ export class CheckboxTree {
const item = document.createElement('div');
item.className = 'checkbox-tree__item';
item.dataset.nodeId = node.id;
this.itemsById.set(node.id, item);
const row = document.createElement('div');
row.className = 'checkbox-tree__row';
@@ -524,8 +262,7 @@ export class CheckboxTree {
}
itemForNode(id) {
return Array.from(this.container.querySelectorAll('.checkbox-tree__item'))
.find(item => item.dataset.nodeId === id) ?? null;
return this.itemsById.get(id) ?? null;
}
updateAncestorCheckboxes(item) {
+206
View File
@@ -0,0 +1,206 @@
// Manifest parsing and binary codecs. This module has no DOM dependencies.
export const SERIALIZATION_VERSION = 1;
export const PATH_DELIMITER = '>';
const STATE_ENCODINGS = new Set(['adaptive', 'dense', 'tiered']);
export function loadManifest(source) {
let records;
let schema = 1;
if (typeof source === 'string') {
records = source.split(/\r?\n/)
.map(line => line.trim())
.filter(line => line && !line.startsWith('#'))
.map(line => line === '!deleted' ? null : line);
} else if (source && typeof source === 'object' && Array.isArray(source.nodes)) {
schema = source.schema;
records = source.nodes;
} else if (source && Array.isArray(source.slots)) {
return normalizeManifest(source.schema, source.slots.map(slot => slot?.deleted ? null : slot?.path));
} else {
throw new TypeError('CheckboxTree manifest must be text or an object with a nodes array.');
}
return normalizeManifest(schema, records);
}
function normalizeManifest(schema, records) {
if (schema !== 1) {
throw new Error(`Unsupported CheckboxTree manifest schema: ${schema}`);
}
const pathToSlot = new Map();
const slots = records.map((record, index) => {
if (record === null || record === '!deleted') {
return { path: null, deleted: true };
}
if (typeof record !== 'string' || !record || record.trim() !== record) {
throw new TypeError(`Invalid CheckboxTree manifest entry at slot ${index}.`);
}
if (pathToSlot.has(record)) {
throw new Error(`Duplicate CheckboxTree manifest path: ${record}`);
}
pathToSlot.set(record, index);
return { path: record, deleted: false };
});
return { schema: 1, slots, pathToSlot };
}
export function setBit(bytes, bitIndex, value) {
const byteIndex = Math.floor(bitIndex / 8);
const mask = 1 << (bitIndex % 8);
if (value) bytes[byteIndex] |= mask;
else bytes[byteIndex] &= ~mask;
}
export function getBit(bytes, bitIndex) {
const byteIndex = Math.floor(bitIndex / 8);
return byteIndex < bytes.length && (bytes[byteIndex] & (1 << (bitIndex % 8))) !== 0;
}
export function bytesToBase64Url(bytes) {
let binary = '';
for (const byte of bytes) binary += String.fromCharCode(byte);
return btoa(binary).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/g, '');
}
export function base64UrlToBytes(value, maximumLength = Infinity) {
if (typeof value !== 'string' || !/^[A-Za-z0-9_-]*$/.test(value) || value.length % 4 === 1) {
throw new Error('Invalid Base64URL value.');
}
if (Number.isFinite(maximumLength) && value.length > Math.ceil(maximumLength * 4 / 3) + 2) {
throw new Error('Encoded tree state exceeds the manifest size.');
}
const base64 = value.replace(/-/g, '+').replace(/_/g, '/');
const binary = atob(base64 + '='.repeat((4 - base64.length % 4) % 4));
if (binary.length > maximumLength) throw new Error('Encoded tree state exceeds the manifest size.');
return Uint8Array.from(binary, character => character.charCodeAt(0));
}
function trimTrailingZeroBytes(bytes) {
let end = bytes.length;
while (end && bytes[end - 1] === 0) end--;
return bytes.slice(0, end);
}
function encodeUnsignedVarint(value) {
const bytes = [];
do {
let byte = value & 0x7f;
value = Math.floor(value / 128);
if (value) byte |= 0x80;
bytes.push(byte);
} while (value);
return bytes;
}
function decodeUnsignedVarint(bytes, offset) {
let value = 0;
let multiplier = 1;
for (let index = offset; index < bytes.length && index < offset + 8; index++) {
const byte = bytes[index];
value += (byte & 0x7f) * multiplier;
if ((byte & 0x80) === 0) return { value, offset: index + 1 };
multiplier *= 128;
if (!Number.isSafeInteger(value) || !Number.isSafeInteger(multiplier)) break;
}
throw new Error('Invalid adaptive tree-state integer.');
}
function encodeSparseIndexes(indexes) {
const bytes = [];
let previous = -1;
for (const index of indexes) {
bytes.push(...encodeUnsignedVarint(index - previous - 1));
previous = index;
}
return bytes;
}
function decodeSparseIndexes(bytes, offset, limit) {
const indexes = new Set();
let previous = -1;
while (offset < bytes.length) {
const decoded = decodeUnsignedVarint(bytes, offset);
const index = previous + decoded.value + 1;
if (index >= limit) throw new Error('Sparse tree state contains an out-of-range slot.');
indexes.add(index);
previous = index;
offset = decoded.offset;
}
return indexes;
}
export function encodeAdaptiveBitset(values, slotCount) {
const enabled = [];
const disabled = [];
const denseBytes = new Uint8Array(Math.ceil(slotCount / 8));
for (const [slot, value] of values) {
(value ? enabled : disabled).push(slot);
setBit(denseBytes, slot, value);
}
enabled.sort((left, right) => left - right);
disabled.sort((left, right) => left - right);
if (enabled.length === 0) return new Uint8Array();
const candidates = [
Uint8Array.from([0, ...trimTrailingZeroBytes(denseBytes)]),
Uint8Array.from([1, ...encodeSparseIndexes(enabled)]),
Uint8Array.from([2, ...encodeUnsignedVarint(slotCount), ...encodeSparseIndexes(disabled)])
];
return candidates.reduce((shortest, candidate) =>
candidate.length < shortest.length ? candidate : shortest
);
}
export function decodeAdaptiveBitset(bytes, slotCount) {
if (bytes.length === 0) return () => false;
const mode = bytes[0];
if (mode === 0) {
const dense = bytes.slice(1);
if (dense.length > Math.ceil(slotCount / 8)) {
throw new Error('Dense tree state exceeds the manifest size.');
}
return slot => getBit(dense, slot);
}
if (mode === 1) {
const enabled = decodeSparseIndexes(bytes, 1, slotCount);
return slot => enabled.has(slot);
}
if (mode === 2) {
const coverage = decodeUnsignedVarint(bytes, 1);
if (coverage.value > slotCount) throw new Error('Tree-state coverage exceeds the manifest size.');
const disabled = decodeSparseIndexes(bytes, coverage.offset, coverage.value);
return slot => slot < coverage.value && !disabled.has(slot);
}
throw new Error('Unknown adaptive tree-state mode.');
}
export function encodeDenseBitset(values, slotCount) {
const bytes = new Uint8Array(Math.ceil(slotCount / 8));
for (const [slot, value] of values) setBit(bytes, slot, value);
return trimTrailingZeroBytes(bytes);
}
export function decodeDenseBitset(bytes, slotCount) {
if (bytes.length > Math.ceil(slotCount / 8)) {
throw new Error('Dense tree state exceeds the manifest size.');
}
return slot => getBit(bytes, slot);
}
export function maximumEncodedLength(slotCount) {
return Math.max(Math.ceil(slotCount / 8) + 1, slotCount * 2 + 10);
}
export function assertStateEncoding(encoding) {
if (!STATE_ENCODINGS.has(encoding)) {
throw new Error(`Unsupported CheckboxTree state encoding: ${encoding}`);
}
}
export function asManifestSource(manifest) {
return manifest?.pathToSlot instanceof Map ? manifest : loadManifest(manifest);
}
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// Adapts pure state codecs to CheckboxTree's rendered node model and URL format.
import {
PATH_DELIMITER,
SERIALIZATION_VERSION,
asManifestSource as asManifest,
assertStateEncoding,
base64UrlToBytes,
bytesToBase64Url,
decodeAdaptiveBitset,
decodeDenseBitset,
encodeAdaptiveBitset,
encodeDenseBitset,
maximumEncodedLength
} from './state-codec.js';
export function validateManifest(manifest, tree) {
const normalized = asManifest(manifest);
const treePaths = new Set(tree.nodesByPath.keys());
return {
valid: Array.from(treePaths).every(path => normalized.pathToSlot.has(path)),
unregisteredPaths: Array.from(treePaths).filter(path => !normalized.pathToSlot.has(path)),
missingPaths: normalized.slots
.filter(slot => !slot.deleted && !treePaths.has(slot.path))
.map(slot => slot.path)
};
}
export function validateManifestEvolution(previous, next) {
const oldManifest = asManifest(previous);
const newManifest = asManifest(next);
const errors = [];
if (newManifest.slots.length < oldManifest.slots.length) {
errors.push('Manifest slots cannot be removed; use tombstones.');
}
oldManifest.slots.forEach((oldSlot, index) => {
const newSlot = newManifest.slots[index];
if (!newSlot) return;
if (oldSlot.deleted && !newSlot.deleted) {
errors.push(`Tombstoned slot ${index} cannot be reused.`);
}
if (!oldSlot.deleted && !newSlot.deleted && oldSlot.path !== newSlot.path) {
errors.push(`Slot ${index} changed path; confirm this is a logical rename or move.`);
}
});
return { valid: errors.length === 0, errors };
}
function collectTreeValues(tree, manifest) {
const normalized = asManifest(manifest);
const checkedValues = new Map();
const expandedValues = new Map();
for (const [path, node] of tree.nodesByPath) {
const slot = normalized.pathToSlot.get(path);
if (slot === undefined) continue;
const item = tree.itemForNode(node.id);
const checkbox = item && tree.directCheckbox(item);
const toggle = item?.querySelector(':scope > .checkbox-tree__row > .checkbox-tree__toggle');
checkedValues.set(slot, Boolean(checkbox?.checked));
expandedValues.set(slot, toggle?.getAttribute('aria-expanded') === 'true');
}
return { normalized, checkedValues, expandedValues };
}
function nodeState(tree, node) {
const item = tree.itemForNode(node.id);
const checkbox = item && tree.directCheckbox(item);
const toggle = item?.querySelector(':scope > .checkbox-tree__row > .checkbox-tree__toggle');
return {
checked: Boolean(checkbox?.checked),
hasChecked: Boolean(checkbox),
expanded: toggle?.getAttribute('aria-expanded') === 'true',
hasExpanded: Boolean(toggle)
};
}
function encodeTieredState(tree, normalized) {
const checkedByDepth = new Map();
const expandedByDepth = new Map();
const statesByPath = new Map();
for (const [path, node] of tree.nodesByPath) {
const slot = normalized.pathToSlot.get(path);
if (slot === undefined) continue;
const depth = path.split(PATH_DELIMITER).length;
const parentPath = path.includes(PATH_DELIMITER)
? path.slice(0, path.lastIndexOf(PATH_DELIMITER))
: null;
const parent = statesByPath.get(parentPath) ?? {
checked: false,
hasChecked: false,
expanded: false,
hasExpanded: false
};
const current = nodeState(tree, node);
if (current.hasChecked) {
checkedByDepth.set(depth, checkedByDepth.get(depth) ?? new Map());
checkedByDepth.get(depth).set(slot, current.checked !== (parent.hasChecked ? parent.checked : false));
}
if (current.hasExpanded) {
expandedByDepth.set(depth, expandedByDepth.get(depth) ?? new Map());
expandedByDepth.get(depth).set(slot, current.expanded);
}
statesByPath.set(path, current);
}
const fields = new Map([['n', String(normalized.slots.length)]]);
for (const [depth, values] of checkedByDepth) {
const encoded = bytesToBase64Url(encodeAdaptiveBitset(values, normalized.slots.length));
if (encoded) fields.set(`c${depth}`, encoded);
}
for (const [depth, values] of expandedByDepth) {
const encoded = bytesToBase64Url(encodeAdaptiveBitset(values, normalized.slots.length));
if (encoded) fields.set(`x${depth}`, encoded);
}
return fields;
}
export function encodeTreeState(tree, manifest, encoding = tree.options?.stateEncoding ?? 'adaptive') {
assertStateEncoding(encoding);
const { normalized, checkedValues, expandedValues } = collectTreeValues(tree, manifest);
if (encoding === 'tiered') {
return { version: SERIALIZATION_VERSION, encoding, fields: encodeTieredState(tree, normalized) };
}
const encode = encoding === 'dense' ? encodeDenseBitset : encodeAdaptiveBitset;
const checkedValue = bytesToBase64Url(encode(checkedValues, normalized.slots.length));
const expandedValue = bytesToBase64Url(encode(expandedValues, normalized.slots.length));
return {
version: SERIALIZATION_VERSION,
encoding,
checked: checkedValue || null,
expanded: expandedValue || null
};
}
function decodeField(params, name, normalized, encoding) {
const maximumLength = encoding === 'dense'
? Math.ceil(normalized.slots.length / 8)
: maximumEncodedLength(normalized.slots.length);
const bytes = base64UrlToBytes(params.get(name) ?? '', maximumLength);
const decode = encoding === 'dense' ? decodeDenseBitset : decodeAdaptiveBitset;
decode(bytes, normalized.slots.length);
return bytes;
}
export function decodeTreeState(fragment, manifest, encoding = 'adaptive') {
assertStateEncoding(encoding);
const normalized = asManifest(manifest);
const value = fragment.startsWith('#') ? fragment.slice(1) : fragment;
const params = new URLSearchParams(value);
if (params.get('v') !== String(SERIALIZATION_VERSION)) {
return { applied: false, version: params.get('v'), encoding, warnings: ['Missing or unsupported serialization version.'] };
}
try {
if (encoding === 'tiered') {
if (params.has('c') || params.has('x')) {
throw new Error('Tiered tree state contains non-tiered fields.');
}
const maximumDepth = normalized.slots.reduce((depth, slot) =>
slot.deleted ? depth : Math.max(depth, slot.path.split(PATH_DELIMITER).length)
, 0);
for (const key of params.keys()) {
const match = /^([cx])(\d+)$/.exec(key);
if (match && (Number(match[2]) < 1 || Number(match[2]) > maximumDepth)) {
throw new Error(`Tree state contains an invalid tier: ${key}`);
}
}
const coverage = Number(params.get('n'));
if (!Number.isSafeInteger(coverage) || coverage < 0 || coverage > normalized.slots.length) {
throw new Error('Tiered tree state has invalid manifest coverage.');
}
const checkedTiers = new Map();
const expandedTiers = new Map();
for (let depth = 1; depth <= maximumDepth; depth++) {
checkedTiers.set(depth, decodeField(params, `c${depth}`, normalized, 'adaptive'));
expandedTiers.set(depth, decodeField(params, `x${depth}`, normalized, 'adaptive'));
}
return {
applied: true,
version: SERIALIZATION_VERSION,
encoding,
coverage,
checkedTiers,
expandedTiers,
warnings: []
};
}
for (const key of params.keys()) {
if (key === 'n' || /^[cx]\d+$/.test(key)) {
throw new Error('Tree state contains tiered fields for a non-tiered encoding.');
}
}
const checked = decodeField(params, 'c', normalized, encoding);
const expanded = decodeField(params, 'x', normalized, encoding);
return {
applied: true,
version: SERIALIZATION_VERSION,
encoding,
checked,
expanded,
warnings: []
};
} catch (error) {
return { applied: false, version: SERIALIZATION_VERSION, encoding, warnings: [error.message] };
}
}
export function applyTreeState(tree, manifest, state) {
if (!state?.applied) return false;
const normalized = asManifest(manifest);
if (state.encoding === 'tiered') return applyTieredTreeState(tree, normalized, state);
let isChecked;
let isExpanded;
try {
const decode = state.encoding === 'dense' ? decodeDenseBitset : decodeAdaptiveBitset;
isChecked = decode(state.checked, normalized.slots.length);
isExpanded = decode(state.expanded, normalized.slots.length);
} catch {
return false;
}
for (const [path, node] of tree.nodesByPath) {
const slot = normalized.pathToSlot.get(path);
if (slot === undefined) continue;
const item = tree.itemForNode(node.id);
const checkbox = item && tree.directCheckbox(item);
if (checkbox && !checkbox.disabled) checkbox.checked = isChecked(slot);
tree.setExpanded(item, isExpanded(slot));
}
tree.updateAllParentCheckboxes();
return true;
}
function applyTieredTreeState(tree, normalized, state) {
const resolvedByPath = new Map();
const checkedDecoders = new Map();
const expandedDecoders = new Map();
try {
for (const [depth, bytes] of state.checkedTiers) {
checkedDecoders.set(depth, decodeAdaptiveBitset(bytes, normalized.slots.length));
}
for (const [depth, bytes] of state.expandedTiers) {
expandedDecoders.set(depth, decodeAdaptiveBitset(bytes, normalized.slots.length));
}
} catch {
return false;
}
for (const [path, node] of tree.nodesByPath) {
const slot = normalized.pathToSlot.get(path);
if (slot === undefined) continue;
const depth = path.split(PATH_DELIMITER).length;
const parentPath = path.includes(PATH_DELIMITER)
? path.slice(0, path.lastIndexOf(PATH_DELIMITER))
: null;
const parent = resolvedByPath.get(parentPath) ?? {
checked: false,
hasChecked: false,
expanded: false,
hasExpanded: false
};
const item = tree.itemForNode(node.id);
const checkbox = item && tree.directCheckbox(item);
const toggle = item?.querySelector(':scope > .checkbox-tree__row > .checkbox-tree__toggle');
const isCovered = slot < state.coverage;
const checked = checkbox && isCovered
? (parent.hasChecked ? parent.checked : false) !== checkedDecoders.get(depth)(slot)
: false;
const expanded = Boolean(toggle && isCovered && expandedDecoders.get(depth)(slot));
if (checkbox && !checkbox.disabled) checkbox.checked = checked;
tree.setExpanded(item, expanded);
resolvedByPath.set(path, {
checked,
hasChecked: Boolean(checkbox),
expanded,
hasExpanded: Boolean(toggle)
});
}
tree.updateAllParentCheckboxes();
return true;
}
export function serializeStateToFragment(tree, manifest, encoding = tree.options?.stateEncoding ?? 'adaptive') {
const state = encodeTreeState(tree, manifest, encoding);
const params = new URLSearchParams({ v: String(state.version) });
if (state.encoding === 'tiered') {
for (const [name, value] of state.fields) params.set(name, value);
} else {
if (state.checked) params.set('c', state.checked);
if (state.expanded) params.set('x', state.expanded);
}
return `#${params}`;
}
export function restoreStateFromLocation(
tree,
manifest,
location = window.location,
encoding = tree.options?.stateEncoding ?? 'adaptive'
) {
const state = decodeTreeState(location.hash ?? '', manifest, encoding);
if (state.applied) applyTreeState(tree, manifest, state);
return state;
}