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e8cb4409 C |
1 | import { Injectable } from '@angular/core' |
2 | import { getAbsoluteAPIUrl } from '@app/shared/misc/utils' | |
c199c427 | 3 | // FIXME: use @types/linkify when https://github.com/DefinitelyTyped/DefinitelyTyped/pull/29682/files is merged? |
244b4ae3 B |
4 | const linkify = require('linkifyjs') |
5 | const linkifyHtml = require('linkifyjs/html') | |
e8cb4409 C |
6 | |
7 | @Injectable() | |
8 | export class LinkifierService { | |
9 | ||
10 | static CLASSNAME = 'linkified' | |
11 | ||
12 | private linkifyOptions = { | |
13 | className: { | |
14 | mention: LinkifierService.CLASSNAME + '-mention', | |
15 | url: LinkifierService.CLASSNAME + '-url' | |
16 | } | |
17 | } | |
18 | ||
19 | constructor () { | |
20 | // Apply plugin | |
21 | this.mentionWithDomainPlugin(linkify) | |
22 | } | |
23 | ||
24 | linkify (text: string) { | |
25 | return linkifyHtml(text, this.linkifyOptions) | |
26 | } | |
27 | ||
28 | private mentionWithDomainPlugin (linkify: any) { | |
29 | const TT = linkify.scanner.TOKENS // Text tokens | |
30 | const { TOKENS: MT, State } = linkify.parser // Multi tokens, state | |
31 | const MultiToken = MT.Base | |
32 | const S_START = linkify.parser.start | |
33 | ||
34 | const TT_AT = TT.AT | |
35 | const TT_DOMAIN = TT.DOMAIN | |
36 | const TT_LOCALHOST = TT.LOCALHOST | |
37 | const TT_NUM = TT.NUM | |
38 | const TT_COLON = TT.COLON | |
39 | const TT_SLASH = TT.SLASH | |
40 | const TT_TLD = TT.TLD | |
41 | const TT_UNDERSCORE = TT.UNDERSCORE | |
42 | const TT_DOT = TT.DOT | |
43 | ||
951ef829 | 44 | function MENTION (this: any, value: any) { |
e8cb4409 C |
45 | this.v = value |
46 | } | |
47 | ||
48 | linkify.inherits(MultiToken, MENTION, { | |
49 | type: 'mentionWithDomain', | |
50 | isLink: true, | |
51 | toHref () { | |
52 | return getAbsoluteAPIUrl() + '/services/redirect/accounts/' + this.toString().substr(1) | |
53 | } | |
54 | }) | |
55 | ||
56 | const S_AT = S_START.jump(TT_AT) // @ | |
57 | const S_AT_SYMS = new State() | |
58 | const S_MENTION = new State(MENTION) | |
59 | const S_MENTION_DIVIDER = new State() | |
60 | const S_MENTION_DIVIDER_SYMS = new State() | |
61 | ||
62 | // @_, | |
63 | S_AT.on(TT_UNDERSCORE, S_AT_SYMS) | |
64 | ||
65 | // @_* | |
66 | S_AT_SYMS | |
67 | .on(TT_UNDERSCORE, S_AT_SYMS) | |
68 | .on(TT_DOT, S_AT_SYMS) | |
69 | ||
70 | // Valid mention (not made up entirely of symbols) | |
71 | S_AT | |
72 | .on(TT_DOMAIN, S_MENTION) | |
73 | .on(TT_LOCALHOST, S_MENTION) | |
74 | .on(TT_TLD, S_MENTION) | |
75 | .on(TT_NUM, S_MENTION) | |
76 | ||
77 | S_AT_SYMS | |
78 | .on(TT_DOMAIN, S_MENTION) | |
79 | .on(TT_LOCALHOST, S_MENTION) | |
80 | .on(TT_TLD, S_MENTION) | |
81 | .on(TT_NUM, S_MENTION) | |
82 | ||
83 | // More valid mentions | |
84 | S_MENTION | |
85 | .on(TT_DOMAIN, S_MENTION) | |
86 | .on(TT_LOCALHOST, S_MENTION) | |
87 | .on(TT_TLD, S_MENTION) | |
88 | .on(TT_COLON, S_MENTION) | |
89 | .on(TT_NUM, S_MENTION) | |
90 | .on(TT_UNDERSCORE, S_MENTION) | |
91 | ||
92 | // Mention with a divider | |
93 | S_MENTION | |
94 | .on(TT_AT, S_MENTION_DIVIDER) | |
95 | .on(TT_SLASH, S_MENTION_DIVIDER) | |
96 | .on(TT_DOT, S_MENTION_DIVIDER) | |
97 | ||
98 | // Mention _ trailing stash plus syms | |
99 | S_MENTION_DIVIDER.on(TT_UNDERSCORE, S_MENTION_DIVIDER_SYMS) | |
100 | S_MENTION_DIVIDER_SYMS.on(TT_UNDERSCORE, S_MENTION_DIVIDER_SYMS) | |
101 | ||
102 | // Once we get a word token, mentions can start up again | |
103 | S_MENTION_DIVIDER | |
104 | .on(TT_DOMAIN, S_MENTION) | |
105 | .on(TT_LOCALHOST, S_MENTION) | |
106 | .on(TT_TLD, S_MENTION) | |
107 | .on(TT_NUM, S_MENTION) | |
108 | ||
109 | S_MENTION_DIVIDER_SYMS | |
110 | .on(TT_DOMAIN, S_MENTION) | |
111 | .on(TT_LOCALHOST, S_MENTION) | |
112 | .on(TT_TLD, S_MENTION) | |
113 | .on(TT_NUM, S_MENTION) | |
114 | } | |
115 | } |