-
Notifications
You must be signed in to change notification settings - Fork 3.6k
/
characterinfoview.ts
106 lines (93 loc) · 2.21 KB
/
characterinfoview.ts
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
/**
* @license Copyright (c) 2003-2024, CKSource Holding sp. z o.o. All rights reserved.
* For licensing, see LICENSE.md or https://ckeditor.com/legal/ckeditor-oss-license
*/
/**
* @module special-characters/ui/characterinfoview
*/
import type { Locale } from 'ckeditor5/src/utils.js';
import { View } from 'ckeditor5/src/ui.js';
import '../../theme/characterinfo.css';
/**
* The view displaying detailed information about a special character glyph, e.g. upon
* hovering it with a mouse.
*/
export default class CharacterInfoView extends View<HTMLDivElement> {
/**
* The character whose information is displayed by the view. For instance, "∑" or "¿".
*
* @observable
*/
declare public character: string | null;
/**
* The name of the {@link #character}. For instance, "N-ary summation" or "Inverted question mark".
*
* @observable
*/
declare public name: string | null;
/**
* The "Unicode string" of the {@link #character}. For instance "U+0061".
*
* @observable
*/
declare public readonly code: string;
constructor( locale: Locale ) {
super( locale );
const bind = this.bindTemplate;
this.set( 'character', null );
this.set( 'name', null );
this.bind( 'code' ).to( this, 'character', characterToUnicodeString );
this.setTemplate( {
tag: 'div',
children: [
{
tag: 'span',
attributes: {
class: [
'ck-character-info__name'
]
},
children: [
{
// Note: ZWSP to prevent vertical collapsing.
text: bind.to( 'name', name => name ? name : '\u200B' )
}
]
},
{
tag: 'span',
attributes: {
class: [
'ck-character-info__code'
]
},
children: [
{
text: bind.to( 'code' )
}
]
}
],
attributes: {
class: [
'ck',
'ck-character-info'
]
}
} );
}
}
/**
* Converts a character into a "Unicode string", for instance:
*
* "$" -> "U+0024"
*
* Returns an empty string when the character is `null`.
*/
function characterToUnicodeString( character: string | null ): string {
if ( character === null ) {
return '';
}
const hexCode = character.codePointAt( 0 )!.toString( 16 );
return 'U+' + ( '0000' + hexCode ).slice( -4 );
}