328 lines
11 KiB
TypeScript
328 lines
11 KiB
TypeScript
import Locale from "./Locale"
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import { Utils } from "../../Utils"
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import BaseUIElement from "../BaseUIElement"
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import LinkToWeblate from "../Base/LinkToWeblate"
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export class Translation extends BaseUIElement {
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public static forcedLanguage = undefined
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public readonly translations: Record<string, string>
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public readonly context?: string
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constructor(translations: string | Record<string, string>, context?: string) {
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super()
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if (translations === undefined) {
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console.error("Translation without content at " + context)
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throw `Translation without content (${context})`
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}
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this.context = translations["_context"] ?? context
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if (typeof translations === "string") {
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translations = { "*": translations }
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}
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let count = 0
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for (const translationsKey in translations) {
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if (!translations.hasOwnProperty(translationsKey)) {
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continue
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}
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if (translationsKey === "_context" || translationsKey === "_meta") {
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continue
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}
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count++
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if (typeof translations[translationsKey] != "string") {
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console.error("Non-string object in translation: ", translations[translationsKey])
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throw (
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"Error in an object depicting a translation: a non-string object was found. (" +
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context +
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")\n You probably put some other section accidentally in the translation"
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)
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}
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}
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this.translations = translations
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if (count === 0) {
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console.error(
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"Constructing a translation, but the object containing translations is empty " +
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context
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)
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throw `Constructing a translation, but the object containing translations is empty (${context})`
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}
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}
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get txt(): string {
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return this.textFor(Translation.forcedLanguage ?? Locale.language.data)
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}
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static ExtractAllTranslationsFrom(
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object: any,
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context = ""
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): { context: string; tr: Translation }[] {
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const allTranslations: { context: string; tr: Translation }[] = []
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for (const key in object) {
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const v = object[key]
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if (v === undefined || v === null) {
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continue
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}
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if (v instanceof Translation) {
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allTranslations.push({ context: context + "." + key, tr: v })
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continue
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}
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if (typeof v === "object") {
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allTranslations.push(
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...Translation.ExtractAllTranslationsFrom(v, context + "." + key)
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)
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}
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}
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return allTranslations
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}
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static fromMap(transl: Map<string, string>) {
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const translations = {}
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let hasTranslation = false
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transl?.forEach((value, key) => {
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translations[key] = value
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hasTranslation = true
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})
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if (!hasTranslation) {
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return undefined
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}
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return new Translation(translations)
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}
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public toString() {
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return this.txt
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}
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Destroy() {
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super.Destroy()
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this.isDestroyed = true
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}
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public textFor(language: string): string {
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if (this.translations["*"]) {
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return this.translations["*"]
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}
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const txt = this.translations[language]
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if (txt !== undefined) {
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return txt
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}
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const en = this.translations["en"]
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if (en !== undefined) {
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return en
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}
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for (const i in this.translations) {
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if (!this.translations.hasOwnProperty(i)) {
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continue
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}
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return this.translations[i] // Return a random language
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}
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console.error("Missing language ", Locale.language.data, "for", this.translations)
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return ""
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}
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InnerConstructElement(): HTMLElement {
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const el = document.createElement("span")
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const self = this
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el.innerHTML = self.txt
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if (self.translations["*"] !== undefined) {
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return el
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}
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Locale.language.addCallback((_) => {
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if (self.isDestroyed) {
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return true
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}
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el.innerHTML = self.txt
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})
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if (self.context === undefined || self.context?.indexOf(":") < 0) {
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return el
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}
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const wrapper = document.createElement("span")
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wrapper.appendChild(el)
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Locale.showLinkToWeblate.addCallbackAndRun((doShow) => {
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if (!doShow) {
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return
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}
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const linkToWeblate = new LinkToWeblate(self.context, self.translations)
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wrapper.appendChild(linkToWeblate.ConstructElement())
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return true
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})
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return wrapper
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}
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public SupportedLanguages(): string[] {
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const langs = []
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for (const translationsKey in this.translations) {
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if (!this.translations.hasOwnProperty(translationsKey)) {
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continue
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}
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if (translationsKey === "#") {
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continue
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}
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if (!this.translations.hasOwnProperty(translationsKey)) {
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continue
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}
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langs.push(translationsKey)
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}
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return langs
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}
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public AllValues(): string[] {
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return this.SupportedLanguages().map((lng) => this.translations[lng])
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}
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/**
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* Constructs a new Translation where every contained string has been modified
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*/
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public OnEveryLanguage(
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f: (s: string, language: string) => string,
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context?: string
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): Translation {
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const newTranslations = {}
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for (const lang in this.translations) {
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if (!this.translations.hasOwnProperty(lang)) {
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continue
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}
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newTranslations[lang] = f(this.translations[lang], lang)
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}
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return new Translation(newTranslations, context ?? this.context)
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}
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/**
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* Replaces the given string with the given text in the language.
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* Other substitutions are left in place
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*
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* const tr = new Translation(
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* {"nl": "Een voorbeeldtekst met {key} en {key1}, en nogmaals {key}",
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* "en": "Just a single {key}"})
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* const r = tr.replace("{key}", "value")
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* r.textFor("nl") // => "Een voorbeeldtekst met value en {key1}, en nogmaals value"
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* r.textFor("en") // => "Just a single value"
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*
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*/
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public replace(a: string, b: string) {
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return this.OnEveryLanguage((str) => str.replace(new RegExp(a, "g"), b))
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}
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public Clone() {
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return new Translation(this.translations, this.context)
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}
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FirstSentence() {
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const tr = {}
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for (const lng in this.translations) {
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if (!this.translations.hasOwnProperty(lng)) {
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continue
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}
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let txt = this.translations[lng]
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txt = txt.replace(/[.<].*/, "")
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txt = Utils.EllipsesAfter(txt, 255)
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tr[lng] = txt
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}
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return new Translation(tr)
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}
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/**
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* Extracts all images (including HTML-images) from all the embedded translations
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*
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* // should detect sources of <img>
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* const tr = new Translation({en: "XYZ <img src='a.svg'/> XYZ <img src=\"some image.svg\"></img> XYZ <img src=b.svg/>"})
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* new Set<string>(tr.ExtractImages(false)) // new Set(["a.svg", "b.svg", "some image.svg"])
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*/
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public ExtractImages(isIcon = false): string[] {
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const allIcons: string[] = []
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for (const key in this.translations) {
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if (!this.translations.hasOwnProperty(key)) {
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continue
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}
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const render = this.translations[key]
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if (isIcon) {
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const icons = render
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.split(";")
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.filter((part) => part.match(/(\.svg|\.png|\.jpg)$/) != null)
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allIcons.push(...icons)
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} else if (!Utils.runningFromConsole) {
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// This might be a tagrendering containing some img as html
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const htmlElement = document.createElement("div")
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htmlElement.innerHTML = render
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const images = Array.from(htmlElement.getElementsByTagName("img")).map(
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(img) => img.src
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)
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allIcons.push(...images)
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} else {
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// We are running this in ts-node (~= nodejs), and can not access document
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// So, we fallback to simple regex
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try {
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const matches = render.match(/<img[^>]+>/g)
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if (matches != null) {
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const sources = matches
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.map((img) => img.match(/src=("[^"]+"|'[^']+'|[^/ ]+)/))
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.filter((match) => match != null)
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.map((match) =>
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match[1].trim().replace(/^['"]/, "").replace(/['"]$/, "")
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)
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allIcons.push(...sources)
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}
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} catch (e) {
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console.error("Could not search for images: ", render, this.txt)
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throw e
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}
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}
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}
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return allIcons.filter((icon) => icon != undefined)
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}
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AsMarkdown(): string {
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return this.txt
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}
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}
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export class TypedTranslation<T extends Record<string, any>> extends Translation {
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constructor(translations: Record<string, string>, context?: string) {
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super(translations, context)
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}
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/**
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* Substitutes text in a translation.
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* If a translation is passed, it'll be fused
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*
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* // Should replace simple keys
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* new TypedTranslation<object>({"en": "Some text {key}"}).Subs({key: "xyz"}).textFor("en") // => "Some text xyz"
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*
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* // Should fuse translations
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* const subpart = new Translation({"en": "subpart","nl":"onderdeel"})
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* const tr = new TypedTranslation<object>({"en": "Full sentence with {part}", nl: "Volledige zin met {part}"})
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* const subbed = tr.Subs({part: subpart})
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* subbed.textFor("en") // => "Full sentence with subpart"
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* subbed.textFor("nl") // => "Volledige zin met onderdeel"
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*
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*/
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Subs(text: T, context?: string): Translation {
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return this.OnEveryLanguage((template, lang) => {
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if (lang === "_context") {
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return template
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}
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return Utils.SubstituteKeys(template, text, lang)
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}, context)
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}
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PartialSubs<X extends string>(
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text: Partial<T> & Record<X, string>
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): TypedTranslation<Omit<T, X>> {
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const newTranslations: Record<string, string> = {}
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for (const lang in this.translations) {
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const template = this.translations[lang]
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if (lang === "_context") {
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newTranslations[lang] = template
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continue
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}
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newTranslations[lang] = Utils.SubstituteKeys(template, text, lang)
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}
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return new TypedTranslation<Omit<T, X>>(newTranslations, this.context)
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}
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}
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