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import { ComponentRef, Injectable } from '@angular/core'
import { MarkdownService } from '@app/core'
import {
ButtonMarkupData,
ChannelMiniatureMarkupData,
EmbedMarkupData,
PlaylistMiniatureMarkupData,
VideoMiniatureMarkupData,
VideosListMarkupData
} from '@shared/models'
import { DynamicElementService } from './dynamic-element.service'
import {
ButtonMarkupComponent,
ChannelMiniatureMarkupComponent,
EmbedMarkupComponent,
PlaylistMiniatureMarkupComponent,
VideoMiniatureMarkupComponent,
VideosListMarkupComponent
} from './peertube-custom-tags'
type BuilderFunction = (el: HTMLElement) => ComponentRef<any>
@Injectable()
export class CustomMarkupService {
private builders: { [ selector: string ]: BuilderFunction } = {
'peertube-button': el => this.buttonBuilder(el),
'peertube-video-embed': el => this.embedBuilder(el, 'video'),
'peertube-playlist-embed': el => this.embedBuilder(el, 'playlist'),
'peertube-video-miniature': el => this.videoMiniatureBuilder(el),
'peertube-playlist-miniature': el => this.playlistMiniatureBuilder(el),
'peertube-channel-miniature': el => this.channelMiniatureBuilder(el),
'peertube-videos-list': el => this.videosListBuilder(el)
}
private customMarkdownRenderer: (text: string) => Promise<HTMLElement>
constructor (
private dynamicElementService: DynamicElementService,
private markdown: MarkdownService
) {
this.customMarkdownRenderer = async (text: string) => this.buildElement(text)
}
getCustomMarkdownRenderer () {
return this.customMarkdownRenderer
}
async buildElement (text: string) {
const html = await this.markdown.customPageMarkdownToHTML(text, this.getSupportedTags())
const rootElement = document.createElement('div')
rootElement.innerHTML = html
for (const selector of this.getSupportedTags()) {
rootElement.querySelectorAll(selector)
.forEach((e: HTMLElement) => {
try {
const component = this.execBuilder(selector, e)
this.dynamicElementService.injectElement(e, component)
} catch (err) {
console.error('Cannot inject component %s.', selector, err)
}
})
}
return rootElement
}
private getSupportedTags () {
return Object.keys(this.builders)
}
private execBuilder (selector: string, el: HTMLElement) {
return this.builders[selector](el)
}
private embedBuilder (el: HTMLElement, type: 'video' | 'playlist') {
const data = el.dataset as EmbedMarkupData
const component = this.dynamicElementService.createElement(EmbedMarkupComponent)
this.dynamicElementService.setModel(component, { uuid: data.uuid, type })
return component
}
private videoMiniatureBuilder (el: HTMLElement) {
const data = el.dataset as VideoMiniatureMarkupData
const component = this.dynamicElementService.createElement(VideoMiniatureMarkupComponent)
this.dynamicElementService.setModel(component, { uuid: data.uuid })
return component
}
private playlistMiniatureBuilder (el: HTMLElement) {
const data = el.dataset as PlaylistMiniatureMarkupData
const component = this.dynamicElementService.createElement(PlaylistMiniatureMarkupComponent)
this.dynamicElementService.setModel(component, { uuid: data.uuid })
return component
}
private channelMiniatureBuilder (el: HTMLElement) {
const data = el.dataset as ChannelMiniatureMarkupData
const component = this.dynamicElementService.createElement(ChannelMiniatureMarkupComponent)
this.dynamicElementService.setModel(component, { name: data.name })
return component
}
private buttonBuilder (el: HTMLElement) {
const data = el.dataset as ButtonMarkupData
const component = this.dynamicElementService.createElement(ButtonMarkupComponent)
const model = {
theme: data.theme,
href: data.href,
label: data.label,
blankTarget: this.buildBoolean(data.blankTarget)
}
this.dynamicElementService.setModel(component, model)
return component
}
private videosListBuilder (el: HTMLElement) {
const data = el.dataset as VideosListMarkupData
const component = this.dynamicElementService.createElement(VideosListMarkupComponent)
const model = {
title: data.title,
description: data.description,
sort: data.sort,
categoryOneOf: this.buildArrayNumber(data.categoryOneOf),
languageOneOf: this.buildArrayString(data.languageOneOf),
count: this.buildNumber(data.count) || 10
}
this.dynamicElementService.setModel(component, model)
return component
}
private buildNumber (value: string) {
if (!value) return undefined
return parseInt(value, 10)
}
private buildBoolean (value: string) {
if (value === 'true') return true
if (value === 'false') return false
return undefined
}
private buildArrayNumber (value: string) {
if (!value) return undefined
return value.split(',').map(v => parseInt(v, 10))
}
private buildArrayString (value: string) {
if (!value) return undefined
return value.split(',')
}
}
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