import { Injectable } from '@angular/core'
import { getAbsoluteAPIUrl } from '@app/helpers/utils'
-import * as linkify from 'linkifyjs'
-import linkifyHtml from 'linkifyjs/html'
@Injectable()
export class LinkifierService {
-
static CLASSNAME = 'linkified'
+ private linkifyModule: any
+ private linkifyHtmlModule: any
+
private linkifyOptions = {
className: {
mention: LinkifierService.CLASSNAME + '-mention',
url: LinkifierService.CLASSNAME + '-url'
+ },
+ formatHref: {
+ mention: (href: string) => {
+ return getAbsoluteAPIUrl() + '/services/redirect/accounts/' + href.substr(1)
+ }
}
}
- constructor () {
- // Apply plugin
- this.mentionWithDomainPlugin(linkify)
- }
-
- linkify (text: string) {
- return linkifyHtml(text, this.linkifyOptions)
- }
-
- private mentionWithDomainPlugin (linkify: any) {
- const TT = linkify.scanner.TOKENS // Text tokens
- const { TOKENS: MT, State } = linkify.parser // Multi tokens, state
- const MultiToken = MT.Base
- const S_START = linkify.parser.start
-
- const TT_AT = TT.AT
- const TT_DOMAIN = TT.DOMAIN
- const TT_LOCALHOST = TT.LOCALHOST
- const TT_NUM = TT.NUM
- const TT_COLON = TT.COLON
- const TT_SLASH = TT.SLASH
- const TT_TLD = TT.TLD
- const TT_UNDERSCORE = TT.UNDERSCORE
- const TT_DOT = TT.DOT
+ async linkify (text: string) {
+ if (!this.linkifyModule) {
+ const result = await Promise.all([
+ import('linkifyjs'),
+ import('linkify-plugin-mention'),
+ import('linkify-html').then(m => (m as any).default)
+ ])
- function MENTION (this: any, value: any) {
- this.v = value
+ this.linkifyModule = result[0]
+ this.linkifyHtmlModule = result[2]
}
- linkify.inherits(MultiToken, MENTION, {
- type: 'mentionWithDomain',
- isLink: true,
- toHref () {
- return getAbsoluteAPIUrl() + '/services/redirect/accounts/' + this.toString().substr(1)
- }
- })
-
- const S_AT = S_START.jump(TT_AT) // @
- const S_AT_SYMS = new State()
- const S_MENTION = new State(MENTION)
- const S_MENTION_DIVIDER = new State()
- const S_MENTION_DIVIDER_SYMS = new State()
-
- // @_,
- S_AT.on(TT_UNDERSCORE, S_AT_SYMS)
-
- // @_*
- S_AT_SYMS
- .on(TT_UNDERSCORE, S_AT_SYMS)
- .on(TT_DOT, S_AT_SYMS)
-
- // Valid mention (not made up entirely of symbols)
- S_AT
- .on(TT_DOMAIN, S_MENTION)
- .on(TT_LOCALHOST, S_MENTION)
- .on(TT_TLD, S_MENTION)
- .on(TT_NUM, S_MENTION)
-
- S_AT_SYMS
- .on(TT_DOMAIN, S_MENTION)
- .on(TT_LOCALHOST, S_MENTION)
- .on(TT_TLD, S_MENTION)
- .on(TT_NUM, S_MENTION)
-
- // More valid mentions
- S_MENTION
- .on(TT_DOMAIN, S_MENTION)
- .on(TT_LOCALHOST, S_MENTION)
- .on(TT_TLD, S_MENTION)
- .on(TT_COLON, S_MENTION)
- .on(TT_NUM, S_MENTION)
- .on(TT_UNDERSCORE, S_MENTION)
-
- // Mention with a divider
- S_MENTION
- .on(TT_AT, S_MENTION_DIVIDER)
- .on(TT_SLASH, S_MENTION_DIVIDER)
- .on(TT_DOT, S_MENTION_DIVIDER)
-
- // Mention _ trailing stash plus syms
- S_MENTION_DIVIDER.on(TT_UNDERSCORE, S_MENTION_DIVIDER_SYMS)
- S_MENTION_DIVIDER_SYMS.on(TT_UNDERSCORE, S_MENTION_DIVIDER_SYMS)
-
- // Once we get a word token, mentions can start up again
- S_MENTION_DIVIDER
- .on(TT_DOMAIN, S_MENTION)
- .on(TT_LOCALHOST, S_MENTION)
- .on(TT_TLD, S_MENTION)
- .on(TT_NUM, S_MENTION)
-
- S_MENTION_DIVIDER_SYMS
- .on(TT_DOMAIN, S_MENTION)
- .on(TT_LOCALHOST, S_MENTION)
- .on(TT_TLD, S_MENTION)
- .on(TT_NUM, S_MENTION)
+ return this.linkifyHtmlModule(text, this.linkifyOptions)
}
}