tweb-i2p/src/lib/appManagers/appWebPagesManager.ts

import { $rootScope, safeReplaceObject, calcImageInBox, encodeEntities, copy } from "../utils";
import appPhotosManager from "./appPhotosManager";
import appDocsManager from "./appDocsManager";
import { RichTextProcessor } from "../richtextprocessor";

class AppWebPagesManager {
  webpages: any = {};
  pendingWebPages: any = {};
  
  constructor() {
    $rootScope.$on('apiUpdate', (e: CustomEvent) => {
      let update = e.detail;

      switch (update._) {
        case 'updateWebPage':
          this.saveWebPage(update.webpage)
          break
      }
    })
  }
  
  saveWebPage(apiWebPage: any, messageID?: number, mediaContext?: any) {
    if (apiWebPage.photo && apiWebPage.photo._ === 'photo') {
      appPhotosManager.savePhoto(apiWebPage.photo, mediaContext)
    } else {
      delete apiWebPage.photo
    }
    if (apiWebPage.document && apiWebPage.document._ === 'document') {
      appDocsManager.saveDoc(apiWebPage.document, mediaContext)
    } else {
      if (apiWebPage.type == 'document') {
        delete apiWebPage.type
      }
      delete apiWebPage.document
    }
    
    var siteName = apiWebPage.site_name
    var shortTitle = apiWebPage.title || apiWebPage.author || siteName || ''
    if (siteName && shortTitle == siteName) {
      delete apiWebPage.site_name
    }
    if (shortTitle.length > 100) {
      shortTitle = shortTitle.substr(0, 80) + '...'
    }
    apiWebPage.rTitle = RichTextProcessor.wrapRichText(shortTitle, {noLinks: true, noLinebreaks: true})
    var contextHashtag = ''
    if (siteName == 'GitHub') {
      var matches = apiWebPage.url.match(/(https?:\/\/github\.com\/[^\/]+\/[^\/]+)/)
      if (matches) {
        contextHashtag = matches[0] + '/issues/{1}'
      }
    }
    // delete apiWebPage.description
    var shortDescriptionText = (apiWebPage.description || '')
    if (shortDescriptionText.length > 180) {
      shortDescriptionText = shortDescriptionText.substr(0, 150).replace(/(\n|\s)+$/, '') + '...'
    }
    apiWebPage.rDescription = RichTextProcessor.wrapRichText(shortDescriptionText, {
      contextSite: siteName || 'external',
      contextHashtag: contextHashtag
    });
    
    if (apiWebPage.type != 'photo' &&
    apiWebPage.type != 'video' &&
    apiWebPage.type != 'gif' &&
    apiWebPage.type != 'document' &&
    !apiWebPage.description &&
    apiWebPage.photo) {
      apiWebPage.type = 'photo'
    }
    
    if (messageID) {
      if (this.pendingWebPages[apiWebPage.id] === undefined) {
        this.pendingWebPages[apiWebPage.id] = {}
      }
      this.pendingWebPages[apiWebPage.id][messageID] = true
      this.webpages[apiWebPage.id] = apiWebPage
    }
    
    if (this.webpages[apiWebPage.id] === undefined) {
      this.webpages[apiWebPage.id] = apiWebPage
    } else {
      safeReplaceObject(this.webpages[apiWebPage.id], apiWebPage)
    }
    
    if (!messageID && this.pendingWebPages[apiWebPage.id] !== undefined) {
      var msgs = []
      for(let msgID in this.pendingWebPages[apiWebPage.id]) {
        msgs.push(msgID);
      }

      $rootScope.$broadcast('webpage_updated', {
        id: apiWebPage.id,
        msgs: msgs
      })
    }
  }
  
  wrapForHistory (webPageID: number) {
    var webPage = copy(this.webpages[webPageID]) || {_: 'webPageEmpty'}
    
    if (webPage.photo && webPage.photo.id) {
      webPage.photo = appPhotosManager.wrapForHistory(webPage.photo.id, {website: webPage.type != 'photo' && webPage.type != 'video'})
    }

    /* if (webPage.document && webPage.document.id) {
      webPage.document = appDocsManager.wrapForHistory(webPage.document.id)
    } */ // warning
    
    return webPage
  }
  
  wrapForFull (webPageID: number) {
    var webPage = this.wrapForHistory(webPageID)
    
    if (!webPage.embed_url) {
      return webPage
    }
    
    var fullWidth = window.innerWidth;
    var fullHeight = window.innerHeight;
    
    var full: any = {
      width: fullWidth,
      height: fullHeight
    }
    
    if (!webPage.embed_width || !webPage.embed_height) {
      full.height = full.width = Math.min(fullWidth, fullHeight)
    } else {
      var wh = calcImageInBox(webPage.embed_width, webPage.embed_height, fullWidth, fullHeight)
      full.width = wh.w
      full.height = wh.h
    }
    
    var embedTag = Config.Modes.chrome_packed ? 'webview' : 'iframe'
    
    var embedType = webPage.embed_type != 'iframe' ? webPage.embed_type || 'text/html' : 'text/html'
    
    var embedHtml = '<' + embedTag + ' src="' + encodeEntities(webPage.embed_url) + '" type="' + encodeEntities(embedType) + '" frameborder="0" border="0" webkitallowfullscreen mozallowfullscreen allowfullscreen width="' + full.width + '" height="' + full.height + '" style="width: ' + full.width + 'px; height: ' + full.height + 'px;"></' + embedTag + '>'
    
    full.html = embedHtml;
    
    webPage.full = full
    
    return webPage
  }
}

export default new AppWebPagesManager();