Сергей Подмарев / footyroom-back

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resources/js/showdown-extensions/autoembed.js 3.53 KB
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e77200db5   nologostudio.ru   Initial commit 
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  /**
   * This extension auto embeds urls.
   */
  (function () {
      angular.module('footyroom')
  
      .directive('autoEmbed', ['urlEmbedder', function(urlEmbedder) {
          return {
              link: function(scope, element, attrs) {
                  if (urlEmbedder.get(attrs.href) === undefined) {
                      var spinner = angular.element('<i class="spinner"></spinner>').appendTo(element);
                  }
  
                  urlEmbedder.fetch(attrs.href)
  
                  .then(function(embed) {
                      if (embed) {
                          element.replaceWith(iframeEmbed(embed, attrs.href));
                      }
                  })
  
                  .finally(function() {
                      spinner.remove();
                  })
              }
          };
      }])
  
      .service('urlEmbedder', ['$http', '$q', function($http, $q) {
          var service = this;
          
          service.cache = {};
          service.get = get;
          service.fetch = fetch;
  
          function fetch(url) {
              if (service.cache[url] !== undefined) {
                  return $q.when(this.cache[url]);
              }
  
              return $http.get('/embed?url=' + url)
  
              .then(function(response) {
                  return service.cache[url] = response.data.html;
              })
  
              .catch(function() {
                  return service.cache[url] = null;
              });
          }
  
          function get(url) {
              return service.cache[url];
          }
      }]);
  
      function init() {
          var height;
          var src = window.frameElement.getAttribute('data-src');
          
          setInterval(function () {
              resize();
              reload();
          }, 1000);
  
          function resize() {
              var current = window.document.documentElement.offsetHeight;
  
              if (height !== current) {
                  window.frameElement.style.height = current + "px";
              }
  
              height = current;
          }
  
          function reload() {
              var current = window.frameElement.getAttribute('data-src');
  
              if (src !== current) {
                  window.frameElement.src = "javascript: unescape(window.frameElement.getAttribute('src-doc'));";
              }
  
              src = current;
          }
      }
  
      function iframeEmbed(embed, url) {
          var i = '(' + init.toString() + ')();';
  
          return '<div class="embed-wrap"><iframe data-src="'+ url +'"' +
              'src-doc="<!DOCTYPE html><html><head></head><body><script>'+ escape(i) + '<\/script>' + escape(embed) +'</body></html>"' +
              'src="javascript: unescape(window.frameElement.getAttribute(\'src-doc\'));"' +
              'frameborder="0" width="100%" allowfullscreen></iframe></div>';
      }
  
      function autoEmbed() {
          const urlEmbedder = angular.injector(['ng', 'footyroom']).get('urlEmbedder');
          
          return [{
              type: 'lang',
              filter: function(text) {
                  return text.replace(/^((?:[-+*] |\d+\. |>)? *)((?:https:\/\/|www\.)[^'">\s]+\.[^'">\s]+)( *$)/gm, function(match, p1, p2, p3) {
                      var embed = urlEmbedder.get(p2);
  
                      if (!embed) {
                          return p1 + '<div class="p" href="'+ p2 +'" auto-embed><a href="'+ p2 +'">'+ p2 + '</a></div>' + p3;
                      }
  
                      return iframeEmbed(embed, p2);
                  });
              }
          }];
      }
  
      if (window && window.showdown) {
          window.showdown.extensions.autoembed = autoEmbed;
      }
  
      if (typeof module !== 'undefined') {
          module.exports = autoEmbed;
      }
  })();