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@ngaox/seo

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Easily generate and manage SEO-friendly meta tags, page title,...

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import { DOCUMENT } from '@angular/common'; import { Inject, Injectable, Optional } from '@angular/core'; import { Meta, Title } from '@angular/platform-browser'; import { SeoDefaultsToken } from './shared/models'; import * as i0 from "@angular/core"; import * as i1 from "@angular/platform-browser"; export class SeoService { constructor(title, meta, document, defaults = {}) { this.title = title; this.meta = meta; this.document = document; this.defaults = defaults; } generateTags(definitions) { definitions.forEach(meta => { this.meta.updateTag(meta); }); } set(seoData) { seoData = { ...this.defaults, ...seoData }; if (seoData.title) this.setTitle(seoData.title); if (seoData.keywords) this.setKeywords(seoData.keywords); if (seoData.description) this.setDescription(seoData.description); if (seoData.url) this.setUrl(seoData.url); if (seoData.type) this.setType(seoData.type); if (seoData.image) this.setImage(seoData.image); if (seoData.twitter) this.setTwitter(seoData.twitter); if (seoData.fbAppId) this.setFbAppId(seoData.fbAppId); if (seoData.siteName) this.setSiteName(seoData.siteName); if (seoData.extra) this.generateTags(seoData.extra); } setTitle(title) { this.title.setTitle(title); this.generateTags([ { property: 'og:title', content: title }, { name: 'twitter:title', content: title }, { name: 'title', content: title } ]); } setKeywords(keywords) { this.generateTags([{ name: 'keywords', content: keywords }]); } setDescription(description) { this.generateTags([ { name: 'description', content: description }, { property: 'og:description', content: description }, { name: 'twitter:description', content: description } ]); } setUrl(url) { this.generateTags([{ property: 'og:url', content: url }]); // set canonical link const oldElement = this.document.head.querySelector(`link[rel='canonical']`); if (oldElement) { this.document.head.removeChild(oldElement); } const link = this.document.createElement('link'); link.setAttribute('rel', 'canonical'); link.setAttribute('href', url); this.document.head.appendChild(link); } setType(type) { this.generateTags([{ property: 'og:type', content: type }]); } setImage(image) { if (typeof image === 'string') { this.generateTags([ { property: 'og:image', content: image }, { name: 'twitter:image', content: image }, { property: 'image', content: image } ]); } else { this.generateTags([ { property: 'og:image', content: image.url }, { name: 'twitter:image', content: image.url }, { property: 'image', content: image.url } ]); if (image.url.startsWith('https')) { this.generateTags([ { property: 'og:image:secure_url', content: image.url } ]); } if (image.alt) { this.generateTags([ { property: 'twitter:image:alt', content: image.alt }, { property: 'og:image:alt', content: image.alt } ]); } if (image.height) { this.generateTags([ { property: 'og:image:height', content: image.height.toString() } ]); } if (image.width) { this.generateTags([ { property: 'og:image:width', content: image.width.toString() } ]); } if (image.width) { this.generateTags([ { property: 'og:image:type', content: `${image.mimeType}` } ]); } } } setTwitter(twitterData) { if (twitterData.site) { this.generateTags([{ name: 'twitter:site', content: twitterData.site }]); } if (twitterData.creator) { this.generateTags([ { name: 'twitter:creator', content: twitterData.creator } ]); } if (twitterData.card) { this.generateTags([{ name: 'twitter:card', content: twitterData.card }]); } } setFbAppId(Id) { this.generateTags([{ property: 'fb:app_id', content: Id }]); } setSiteName(siteName) { this.generateTags([{ property: 'og:site_name', content: siteName }]); } } SeoService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "15.2.8", ngImport: i0, type: SeoService, deps: [{ token: i1.Title }, { token: i1.Meta }, { token: DOCUMENT }, { token: SeoDefaultsToken, optional: true }], target: i0.ɵɵFactoryTarget.Injectable }); SeoService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "15.2.8", ngImport: i0, type: SeoService, providedIn: 'root' }); i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "15.2.8", ngImport: i0, type: SeoService, decorators: [{ type: Injectable, args: [{ providedIn: 'root' }] }], ctorParameters: function () { return [{ type: i1.Title }, { type: i1.Meta }, { type: Document, decorators: [{ type: Inject, args: [DOCUMENT] }] }, { type: undefined, decorators: [{ type: Optional }, { type: Inject, args: [SeoDefaultsToken] }] }]; } }); //# 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{ DOCUMENT } from '@angular/common';\nimport { Inject, Injectable, Optional } from '@angular/core';\nimport { Meta, MetaDefinition, Title } from '@angular/platform-browser';\nimport {\n  IPageSeoData,\n  ISeoImage,\n  ISeoTwitter,\n  SeoDefaultsToken\n} from './shared/models';\n\n@Injectable({\n  providedIn: 'root'\n})\nexport class SeoService {\n  constructor(\n    private title: Title,\n    private meta: Meta,\n    @Inject(DOCUMENT) private document: Document,\n    @Optional() @Inject(SeoDefaultsToken) private defaults: IPageSeoData = {}\n  ) {}\n\n  public generateTags(definitions: MetaDefinition[]): void {\n    definitions.forEach(meta => {\n      this.meta.updateTag(meta);\n    });\n  }\n\n  public set(seoData: IPageSeoData) {\n    seoData = {\n      ...this.defaults,\n      ...seoData\n    };\n    if (seoData.title) this.setTitle(seoData.title);\n    if (seoData.keywords) this.setKeywords(seoData.keywords);\n    if (seoData.description) this.setDescription(seoData.description);\n    if (seoData.url) this.setUrl(seoData.url);\n    if (seoData.type) this.setType(seoData.type);\n    if (seoData.image) this.setImage(seoData.image);\n    if (seoData.twitter) this.setTwitter(seoData.twitter);\n    if (seoData.fbAppId) this.setFbAppId(seoData.fbAppId);\n    if (seoData.siteName) this.setSiteName(seoData.siteName);\n    if (seoData.extra) this.generateTags(seoData.extra);\n  }\n\n  public setTitle(title: string): void {\n    this.title.setTitle(title);\n    this.generateTags([\n      { property: 'og:title', content: title },\n      { name: 'twitter:title', content: title },\n      { name: 'title', content: title }\n    ]);\n  }\n\n  public setKeywords(keywords: string): void {\n    this.generateTags([{ name: 'keywords', content: keywords }]);\n  }\n\n  public setDescription(description: string): void {\n    this.generateTags([\n      { name: 'description', content: description },\n      { property: 'og:description', content: description },\n      { name: 'twitter:description', content: description }\n    ]);\n  }\n\n  public setUrl(url: string): void {\n    this.generateTags([{ property: 'og:url', content: url }]);\n    // set canonical link\n    const oldElement = this.document.head.querySelector(\n      `link[rel='canonical']`\n    );\n    if (oldElement) {\n      this.document.head.removeChild(oldElement);\n    }\n    const link: HTMLLinkElement = this.document.createElement('link');\n    link.setAttribute('rel', 'canonical');\n    link.setAttribute('href', url);\n    this.document.head.appendChild(link);\n  }\n\n  public setType(type: string): void {\n    this.generateTags([{ property: 'og:type', content: type }]);\n  }\n\n  public setImage(image: string | ISeoImage): void {\n    if (typeof image === 'string') {\n      this.generateTags([\n        { property: 'og:image', content: image },\n        { name: 'twitter:image', content: image },\n        { property: 'image', content: image }\n      ]);\n    } else {\n      this.generateTags([\n        { property: 'og:image', content: image.url },\n        { name: 'twitter:image', content: image.url },\n        { property: 'image', content: image.url }\n      ]);\n      if (image.url.startsWith('https')) {\n        this.generateTags([\n          { property: 'og:image:secure_url', content: image.url }\n        ]);\n      }\n      if (image.alt) {\n        this.generateTags([\n          { property: 'twitter:image:alt', content: image.alt },\n          { property: 'og:image:alt', content: image.alt }\n        ]);\n      }\n      if (image.height) {\n        this.generateTags([\n          { property: 'og:image:height', content: image.height.toString() }\n        ]);\n      }\n      if (image.width) {\n        this.generateTags([\n          { property: 'og:image:width', content: image.width.toString() }\n        ]);\n      }\n      if (image.width) {\n        this.generateTags([\n          { property: 'og:image:type', content: `${image.mimeType}` }\n        ]);\n      }\n    }\n  }\n\n  public setTwitter(twitterData: ISeoTwitter): void {\n    if (twitterData.site) {\n      this.generateTags([{ name: 'twitter:site', content: twitterData.site }]);\n    }\n    if (twitterData.creator) {\n      this.generateTags([\n        { name: 'twitter:creator', content: twitterData.creator }\n      ]);\n    }\n    if (twitterData.card) {\n      this.generateTags([{ name: 'twitter:card', content: twitterData.card }]);\n    }\n  }\n  public setFbAppId(Id: string): void {\n    this.generateTags([{ property: 'fb:app_id', content: Id }]);\n  }\n\n  public setSiteName(siteName: string): void {\n    this.generateTags([{ property: 'og:site_name', content: siteName }]);\n  }\n}\n"]}