1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
content / browser / resources / private_aggregation / private_aggregation_internals_table.ts [blame]
// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import {assert} from 'chrome://resources/js/assert.js';
import {CustomElement} from 'chrome://resources/js/custom_element.js';
import {getTemplate} from './private_aggregation_internals_table.html.js';
import type {TableModel} from './table_model.js';
/**
* Helper function for setting sort attributes on |th|.
*/
function setSortAttrs(th: HTMLElement, sortDesc: boolean|null) {
let nextDir;
if (sortDesc === null) {
th.ariaSort = 'none';
nextDir = 'ascending';
} else if (sortDesc) {
th.ariaSort = 'descending';
nextDir = 'ascending';
} else {
th.ariaSort = 'ascending';
nextDir = 'descending';
}
th.title = `Sort by ${th.innerText} ${nextDir}`;
th.ariaLabel = th.title;
}
/**
* Table abstracts the logic for rendering and sorting a table. The table's
* columns are supplied by a TableModel supplied to the decorate function. Each
* Column knows how to render the underlying value of the row type T, and
* optionally sort rows of type T by that value.
*/
export class PrivateAggregationInternalsTableElement<T> extends CustomElement {
static override get template() {
return getTemplate();
}
private model_: TableModel<T>|null = null;
private sortDesc_: boolean = false;
setModel(model: TableModel<T>) {
this.model_ = model;
this.sortDesc_ = false;
const tr = this.getRequiredElement('tr');
model.cols.forEach((col, idx) => {
const th = document.createElement('th');
th.scope = 'col';
col.renderHeader(th);
if (col.compare) {
th.setAttribute('role', 'button');
setSortAttrs(th, /*sortDesc=*/ null);
th.addEventListener('click', () => this.changeSortHeader_(idx));
}
tr.appendChild(th);
});
this.addEmptyStateRow_();
this.model_.rowsChangedListeners.add(() => this.updateTbody());
}
private addEmptyStateRow_() {
const td = document.createElement('td');
assert(this.model_);
td.textContent = this.model_.emptyRowText;
td.colSpan = this.model_.cols.length;
const tr = document.createElement('tr');
tr.appendChild(td);
const tbody = this.getRequiredElement('tbody');
tbody.appendChild(tr);
}
private changeSortHeader_(idx: number) {
const ths = this.$all<HTMLElement>('thead th');
assert(this.model_);
if (idx === this.model_.sortIdx) {
this.sortDesc_ = !this.sortDesc_;
} else {
this.sortDesc_ = false;
if (this.model_.sortIdx >= 0) {
setSortAttrs(ths[this.model_.sortIdx]!, /*descending=*/ null);
}
}
this.model_.sortIdx = idx;
setSortAttrs(ths[this.model_.sortIdx]!, this.sortDesc_);
this.updateTbody();
}
private sort_(rows: T[]) {
assert(this.model_);
if (this.model_.sortIdx < 0) {
return;
}
const multiplier = this.sortDesc_ ? -1 : 1;
rows.sort(
(a, b) => this.model_!.cols[this.model_!.sortIdx]!.compare!(a, b) *
multiplier);
}
updateTbody() {
const tbody = this.getRequiredElement('tbody');
tbody.innerText = '';
assert(this.model_);
const rows = this.model_.getRows();
if (rows.length === 0) {
this.addEmptyStateRow_();
return;
}
this.sort_(rows);
rows.forEach((row) => {
const tr = document.createElement('tr');
assert(this.model_);
this.model_.cols.forEach((col) => {
const td = document.createElement('td');
col.render(td, row);
tr.appendChild(td);
});
this.model_.styleRow(tr, row);
tbody.appendChild(tr);
});
}
}
customElements.define(
'aggregation-service-internals-table',
PrivateAggregationInternalsTableElement);