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
139
|
import { desktopCapturer } from 'electron';
const CANCEL_ID = 'desktop-capturer-selection__cancel';
export const screenShareCss = `
.desktop-capturer-selection {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100vh;
background: rgba(30,30,30,.75);
color: #fff;
z-index: 10000000;
display: flex;
align-items: center;
justify-content: center;
}
.desktop-capturer-selection__scroller {
width: 100%;
max-height: 100vh;
overflow-y: auto;
}
.desktop-capturer-selection__list {
max-width: calc(100% - 100px);
margin: 50px;
padding: 0;
display: flex;
flex-wrap: wrap;
list-style: none;
overflow: hidden;
justify-content: center;
}
.desktop-capturer-selection__item {
display: flex;
margin: 4px;
}
.desktop-capturer-selection__btn {
display: flex;
flex-direction: column;
align-items: stretch;
width: 145px;
margin: 0;
border: 0;
border-radius: 3px;
padding: 4px;
background: #252626;
text-align: left;
transition: background-color .15s, box-shadow .15s, color .15s;
color: #dedede;
}
.desktop-capturer-selection__btn:hover,
.desktop-capturer-selection__btn:focus {
background: rgba(98,100,167,.8);
box-shadow: 0 0 4px rgba(0,0,0,0.45), 0 0 2px rgba(0,0,0,0.25);
color: #fff;
}
.desktop-capturer-selection__thumbnail {
width: 100%;
height: 81px;
object-fit: cover;
}
.desktop-capturer-selection__name {
margin: 6px 0;
white-space: nowrap;
text-overflow: ellipsis;
text-align: center;
overflow: hidden;
}
.desktop-capturer-selection__name--cancel {
margin: auto 0;
}
`;
// Patch getDisplayMedia for screen sharing
window.navigator.mediaDevices.getDisplayMedia = () => new Promise(async (resolve, reject) => {
try {
const sources = await desktopCapturer.getSources({ types: ['screen', 'window'] });
const selectionElem = document.createElement('div');
selectionElem.classList = 'desktop-capturer-selection';
selectionElem.innerHTML = `
<div class="desktop-capturer-selection__scroller">
<ul class="desktop-capturer-selection__list">
${sources.map(({
id, name, thumbnail,
}) => `
<li class="desktop-capturer-selection__item">
<button class="desktop-capturer-selection__btn" data-id="${id}" title="${name}">
<img class="desktop-capturer-selection__thumbnail" src="${thumbnail.toDataURL()}" />
<span class="desktop-capturer-selection__name">${name}</span>
</button>
</li>
`).join('')}
<li class="desktop-capturer-selection__item">
<button class="desktop-capturer-selection__btn" data-id="${CANCEL_ID}" title="Cancel">
<span class="desktop-capturer-selection__name desktop-capturer-selection__name--cancel">Cancel</span>
</button>
</li>
</ul>
</div>
`;
document.body.appendChild(selectionElem);
document.querySelectorAll('.desktop-capturer-selection__btn')
.forEach((button) => {
button.addEventListener('click', async () => {
try {
const id = button.getAttribute('data-id');
if (id === CANCEL_ID) {
reject(new Error('Cancelled by user'));
} else {
const mediaSource = sources.find(source => source.id === id);
if (!mediaSource) {
throw new Error(`Source with id ${id} does not exist`);
}
const stream = await window.navigator.mediaDevices.getUserMedia({
audio: false,
video: {
mandatory: {
chromeMediaSource: 'desktop',
chromeMediaSourceId: mediaSource.id,
},
},
});
resolve(stream);
}
} catch (err) {
reject(err);
} finally {
selectionElem.remove();
}
});
});
} catch (err) {
reject(err);
}
});
|
