2021-02-18 12:28:57 +01:00
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/*
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Copyright 2020 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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2021-02-18 10:48:58 +01:00
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import {tag as t} from "./html.js";
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import {openFile, readFileAsText} from "./file.js";
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const main = document.querySelector("main");
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let selectedItemNode;
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let rootItem;
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2021-02-18 11:08:43 +01:00
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const logLevels = [undefined, "All", "Debug", "Detail", "Info", "Warn", "Error", "Fatal", "Off"];
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main.addEventListener("click", event => {
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2021-02-18 10:48:58 +01:00
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if (selectedItemNode) {
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selectedItemNode.classList.remove("selected");
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selectedItemNode = null;
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}
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2021-02-18 11:26:27 +01:00
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if (event.target.classList.contains("toggleExpanded")) {
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const li = event.target.parentElement.parentElement;
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li.classList.toggle("expanded");
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} else {
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const itemNode = event.target.closest(".item");
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if (itemNode) {
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selectedItemNode = itemNode;
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selectedItemNode.classList.add("selected");
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const path = selectedItemNode.dataset.path;
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let item = rootItem;
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let parent;
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if (path.length) {
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const indices = path.split("/").map(i => parseInt(i, 10));
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for(const i of indices) {
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parent = item;
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item = itemChildren(item)[i];
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}
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2021-02-18 10:48:58 +01:00
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}
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2021-02-18 11:54:21 +01:00
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showItemDetails(item, parent, itemNode);
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2021-02-18 10:48:58 +01:00
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}
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}
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});
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2021-02-23 21:00:15 +01:00
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function stringifyItemValue(value) {
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if (typeof value === "object" && value !== null) {
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return JSON.stringify(value, undefined, 2);
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} else {
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return value + "";
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}
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}
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2021-02-18 11:54:21 +01:00
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function showItemDetails(item, parent, itemNode) {
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2021-02-18 11:08:43 +01:00
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const parentOffset = itemStart(parent) ? `${itemStart(item) - itemStart(parent)}ms` : "none";
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2021-02-18 11:54:21 +01:00
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const expandButton = t.button("Expand recursively");
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expandButton.addEventListener("click", () => expandResursively(itemNode.parentElement.parentElement));
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2021-02-18 10:48:58 +01:00
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const aside = t.aside([
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t.h3(itemCaption(item)),
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2021-02-18 11:08:43 +01:00
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t.p([t.strong("Log level: "), logLevels[itemLevel(item)]]),
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t.p([t.strong("Error: "), itemError(item) ? `${itemError(item).name} ${itemError(item).stack}` : "none"]),
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2021-02-18 11:54:21 +01:00
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t.p([t.strong("Parent offset: "), parentOffset]),
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t.p([t.strong("Start: "), new Date(itemStart(item)).toString()]),
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t.p([t.strong("Duration: "), `${itemDuration(item)}ms`]),
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2021-02-18 11:08:43 +01:00
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t.p([t.strong("Child count: "), itemChildren(item) ? `${itemChildren(item).length}` : "none"]),
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t.p(t.strong("Values:")),
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t.ul({class: "values"}, Object.entries(itemValues(item)).map(([key, value]) => {
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return t.li([
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t.span({className: "key"}, normalizeValueKey(key)),
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t.span({className: "value"}, stringifyItemValue(value))
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]);
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})),
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t.p(expandButton)
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]);
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document.querySelector("aside").replaceWith(aside);
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}
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2021-02-18 11:54:21 +01:00
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function expandResursively(li) {
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li.classList.add("expanded");
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const ol = li.querySelector("ol");
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if (ol) {
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const len = ol.children.length;
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for (let i = 0; i < len; i += 1) {
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expandResursively(ol.children[i]);
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}
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}
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}
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2021-02-18 10:48:58 +01:00
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document.getElementById("openFile").addEventListener("click", loadFile);
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async function loadFile() {
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const file = await openFile();
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const json = await readFileAsText(file);
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const logs = JSON.parse(json);
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rootItem = {c: logs.items};
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const fragment = logs.items.reduce((fragment, item, i, items) => {
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const prevItem = i === 0 ? null : items[i - 1];
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fragment.appendChild(t.section([
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2021-02-18 12:02:26 +01:00
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t.h2(prevItem ? `+ ${formatTime(itemStart(item) - itemEnd(prevItem))}` : new Date(itemStart(item)).toString()),
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2021-02-18 10:48:58 +01:00
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t.div({className: "timeline"}, t.ol(itemToNode(item, [i])))
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]));
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return fragment;
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}, document.createDocumentFragment());
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main.replaceChildren(fragment);
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}
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2021-02-18 12:02:26 +01:00
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function formatTime(ms) {
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if (ms < 1000) {
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return `${ms}ms`;
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} else if (ms < 1000 * 60) {
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return `${(ms / 1000).toFixed(2)}s`;
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} else if (ms < 1000 * 60 * 60) {
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return `${(ms / (1000 * 60)).toFixed(2)}m`;
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} else if (ms < 1000 * 60 * 60 * 24) {
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return `${(ms / (1000 * 60 * 60)).toFixed(2)}h`;
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} else {
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return `${(ms / (1000 * 60 * 60 * 24)).toFixed(2)}d`;
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}
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}
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2021-02-18 10:48:58 +01:00
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function itemChildren(item) { return item.c; }
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function itemStart(item) { return item.s; }
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function itemEnd(item) { return item.s + item.d; }
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function itemDuration(item) { return item.d; }
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function itemValues(item) { return item.v; }
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function itemLevel(item) { return item.l; }
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function itemLabel(item) { return item.v?.l; }
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function itemType(item) { return item.v?.t; }
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function itemError(item) { return item.e; }
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2021-02-18 13:07:12 +01:00
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function itemShortErrorMessage(item) {
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if (itemError(item)) {
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const e = itemError(item);
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return e.name || e.stack.substr(0, e.stack.indexOf("\n"));
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}
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}
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2021-02-18 10:48:58 +01:00
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function itemCaption(item) {
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if (itemType(item) === "network") {
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return `${itemValues(item)?.method} ${itemValues(item)?.url}`;
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} else if (itemLabel(item) && itemValues(item)?.id) {
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return `${itemLabel(item)} ${itemValues(item).id}`;
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2021-02-18 13:07:12 +01:00
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} else if (itemLabel(item) && itemValues(item)?.status) {
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return `${itemLabel(item)} (${itemValues(item).status})`;
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} else if (itemLabel(item) && itemError(item)) {
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return `${itemLabel(item)} (${itemShortErrorMessage(item)})`;
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} else {
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return itemLabel(item) || itemType(item);
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}
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}
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function normalizeValueKey(key) {
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switch (key) {
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case "t": return "type";
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case "l": return "label";
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default: return key;
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}
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}
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// returns the node and the total range (recursively) occupied by the node
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function itemToNode(item, path) {
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const hasChildren = !!itemChildren(item)?.length;
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const className = {
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item: true,
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"has-children": hasChildren,
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error: itemError(item),
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[`type-${itemType(item)}`]: !!itemType(item),
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[`level-${itemLevel(item)}`]: true,
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};
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2021-02-18 11:26:27 +01:00
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2021-02-18 10:48:58 +01:00
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const li = t.li([
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2021-02-18 11:26:27 +01:00
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t.div([
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hasChildren ? t.button({className: "toggleExpanded"}) : "",
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t.div({className, "data-path": path.join("/")}, [
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t.span({class: "caption"}, itemCaption(item)),
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t.span({class: "duration"}, `(${itemDuration(item)}ms)`),
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])
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])
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]);
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if (itemChildren(item) && itemChildren(item).length) {
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li.appendChild(t.ol(itemChildren(item).map((item, i) => {
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return itemToNode(item, path.concat(i));
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})));
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}
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return li;
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}
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