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
|
/*
* comment-reaction.js -- Simple emoji picker and glue for reaction endpoint
* Copyright © 2023 Jakob L. Kreuze <zerodaysfordays@sdf.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*/
function encodeAsFormData(obj) {
// Turn the data object into an array of URL-encoded key/value pairs.
let urlEncodedDataPairs = [];
for (let key in obj) {
urlEncodedDataPairs.push(encodeURIComponent(key) + '=' + encodeURIComponent(obj[key]));
}
return urlEncodedDataPairs.join('&');
}
function postReaction(reaction) {
let xhr = new XMLHttpRequest();
xhr.open('POST', "/api/comment/react", true);
// Endpoint expects HTML form data.
xhr.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
xhr.onload = function(data) {
if (xhr.status != 200) {
alert("Failed to react.");
} else {
}
}
xhr.onerror = function(error) {
throw new Error(`Request failed: ${error}`);
}
xhr.send(encodeAsFormData(reaction));
}
// Simple Emoji picker widget.
function selectorWidget() {
function emojiButton(codepoint) {
let span = document.createElement("span");
span.innerHTML = String.fromCodePoint(codepoint);
return span;
}
let selector = document.createElement("div");
selector.setAttribute("class", "emoji-picker");
for (let i = 0x1F600; i < 0x1F64F; i++) {
selector.appendElement(emojiButton(i));
}
selector.appendElement(emojiButton(0x1F37B));
selector.appendElement(emojiButton(0x1F440));
selector.appendElement(emojiButton(0x1F446));
selector.appendElement(emojiButton(0x1F447));
selector.appendElement(emojiButton(0x1F448));
selector.appendElement(emojiButton(0x1F449));
selector.appendElement(emojiButton(0x1F450));
selector.appendElement(emojiButton(0x270A));
selector.appendElement(emojiButton(0x270B));
selector.appendElement(emojiButton(0x270C));
selector.appendElement(emojiButton(0x270D));
for (let i = 0x1F90C; i < 0x1F9FF; i++) {
selector.appendElement(emojiButton(i));
}
return selector;
}
// Add a "react" button to every local comment.
window.addEventListener("load", () => {
// First pass to add a separator for the buttons.
let replyButtons = document.querySelectorAll(".comment-reply-button");
for (let button of replyButtons) {
let parent = button.parentNode;
parent.innerHTML += " - ";
}
// Second pass to add the actual "react" button.
replyButtons = document.querySelectorAll(".comment-reply-button");
for (let button of replyButtons) {
let reactButton = document.createElement("a");
reactButton.setAttribute("class", "comment-react-button");
reactButton.setAttribute("href", "#");
reactButton.setAttribute("data-react-to-id", button.getAttribute("data-reply-to-id"));
reactButton.innerHTML = "react";
button.parentNode.appendChild(reactButton);
reactButton.addEventListener('click', (e) => {
let emojiPicker = selectorWidget();
button.parentNode.parentNode.insertBefore(emojiPicker, button.parentNode);
for (let button of emojiPicker.children) {
button.addEventListener('click', (e) => {
postReaction({
"id": reactButton.getAttribute("data-react-to-id"),
"reaction": button.innerHTML
});
emojiPicker.remove();
});
}
e.preventDefault();
});
}
});
|
