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// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import {FocusEvent, SelectionEvent, SelectTimeEvent} from './events.mjs';
import {delay, DOM, V8CustomElement} from './helper.mjs';
import {Group} from './ic-model.mjs';
import {IcLogEntry} from './log/ic.mjs';
import {MapLogEntry} from './log/map.mjs';
DOM.defineCustomElement(
'ic-panel', (templateText) => class ICPanel extends V8CustomElement {
_selectedLogEntries;
_timeline;
constructor() {
super(templateText);
this.initGroupKeySelect();
this.groupKey.addEventListener('change', e => this.updateTable(e));
}
set timeline(value) {
console.assert(value !== undefined, 'timeline undefined!');
this._timeline = value;
this.selectedLogEntries = this._timeline.all;
this.update();
}
get groupKey() {
return this.$('#group-key');
}
get table() {
return this.$('#table');
}
get tableBody() {
return this.$('#table-body');
}
get count() {
return this.$('#count');
}
get spanSelectAll() {
return this.querySelectorAll('span');
}
set selectedLogEntries(value) {
this._selectedLogEntries = value;
this.update();
}
_update() {
this._updateCount();
this._updateTable();
}
_updateCount() {
this.count.innerHTML = `length=${this._selectedLogEntries.length}`;
}
_updateTable(event) {
let select = this.groupKey;
let key = select.options[select.selectedIndex].text;
DOM.removeAllChildren(this.tableBody);
let groups = Group.groupBy(this._selectedLogEntries, key, true);
this._render(groups, this.tableBody);
}
escapeHtml(unsafe) {
if (!unsafe) return '';
return unsafe.toString()
.replace(/&/g, '&')
.replace(/</g, '<')
.replace(/>/g, '>')
.replace(/"/g, '"')
.replace(/'/g, ''');
}
handleMapClick(e) {
const group = e.target.parentNode.entry;
const id = group.key;
const selectedMapLogEntries =
this.searchIcLogEntryToMapLogEntry(id, group.entries);
this.dispatchEvent(new SelectionEvent(selectedMapLogEntries));
}
searchIcLogEntryToMapLogEntry(id, icLogEntries) {
// searches for mapLogEntries using the id, time
const selectedMapLogEntriesSet = new Set();
for (const icLogEntry of icLogEntries) {
const selectedMap = MapLogEntry.get(id, icLogEntry.time);
selectedMapLogEntriesSet.add(selectedMap);
}
return Array.from(selectedMapLogEntriesSet);
}
// TODO(zcankara) Handle in the processor for events with source
// positions.
handleFilePositionClick(e) {
const tr = e.target.parentNode;
const sourcePosition = tr.group.entries[0].sourcePosition;
this.dispatchEvent(new FocusEvent(sourcePosition));
}
_render(groups, parent) {
const fragment = document.createDocumentFragment();
const max = Math.min(1000, groups.length)
const detailsClickHandler = this.handleDetailsClick.bind(this);
const mapClickHandler = this.handleMapClick.bind(this);
const fileClickHandler = this.handleFilePositionClick.bind(this);
for (let i = 0; i < max; i++) {
const group = groups[i];
const tr = DOM.tr();
tr.group = group;
const details = tr.appendChild(DOM.td('', 'toggle'));
details.onclick = detailsClickHandler;
tr.appendChild(DOM.td(group.percentage + '%', 'percentage'));
tr.appendChild(DOM.td(group.count, 'count'));
const valueTd = tr.appendChild(DOM.td(group.key, 'key'));
if (group.property === 'map') {
valueTd.onclick = mapClickHandler;
valueTd.classList.add('clickable');
} else if (group.property == 'filePosition') {
valueTd.classList.add('clickable');
valueTd.onclick = fileClickHandler;
}
fragment.appendChild(tr);
}
const omitted = groups.length - max;
if (omitted > 0) {
const tr = DOM.tr();
const tdNode = tr.appendChild(DOM.td(`Omitted ${omitted} entries.`));
tdNode.colSpan = 4;
fragment.appendChild(tr);
}
parent.appendChild(fragment);
}
handleDetailsClick(event) {
const tr = event.target.parentNode;
const group = tr.group;
// Create subgroup in-place if the don't exist yet.
if (group.groups === undefined) {
group.createSubGroups();
this.renderDrilldown(group, tr);
}
let detailsTr = tr.nextSibling;
if (tr.classList.contains('open')) {
tr.classList.remove('open');
detailsTr.style.display = 'none';
} else {
tr.classList.add('open');
detailsTr.style.display = 'table-row';
}
}
renderDrilldown(group, previousSibling) {
let tr = DOM.tr('entry-details');
tr.style.display = 'none';
// indent by one td.
tr.appendChild(DOM.td());
let td = DOM.td();
td.colSpan = 3;
for (let key in group.groups) {
this.renderDrilldownGroup(td, group.groups[key], key);
}
tr.appendChild(td);
// Append the new TR after previousSibling.
previousSibling.parentNode.insertBefore(tr, previousSibling.nextSibling)
}
renderDrilldownGroup(td, children, key) {
const max = 20;
const div = DOM.div('drilldown-group-title');
div.textContent =
`Grouped by ${key} [top ${max} out of ${children.length}]`;
td.appendChild(div);
const table = DOM.table();
this._render(children.slice(0, max), table, false)
td.appendChild(table);
}
initGroupKeySelect() {
const select = this.groupKey;
select.options.length = 0;
for (const propertyName of IcLogEntry.propertyNames) {
const option = document.createElement('option');
option.text = propertyName;
select.add(option);
}
}
});
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