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assets/webapps/communications.gaiamobile.org/contacts/js/match_service.js

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+'use strict';
+/*
+ * This code is in charge of launching a diferent window
+ * to handle if one or more contacts have the same info
+ * that the one we are trying to save.
+ */
+ 
+(function(exports) {
+  var matchService = {};
+
+  const CONTACTS_APP_ORIGIN = location.origin;
+  
+  var matcherWindow = null;
+  var currentURL;
+
+  function openWindow(url) {
+    if (!url || matcherWindow !== null) {
+      return;
+    }
+    matcherWindow = window.open(url);
+    currentURL = url;
+    init();
+  }
+
+  function closeWindow(messageId, additionalMessageId) {
+    matcherWindow.close();
+    unload();
+  }
+
+  matchService.match = function(contactId) {
+    var url =
+      '/contacts/views/matching/matching_contacts.html?contactId=' +
+      contactId;
+    openWindow(url);
+  };
+
+  matchService.showDuplicateContacts = function() {
+    var url =
+      '/contacts/views/matching/matching_contacts.html';
+    openWindow(url);
+  };
+
+  function init(){
+    matcherWindow.addEventListener('load', function fn(){
+      matcherWindow.removeEventListener('load', fn);
+      matcherWindow.postMessage({
+        type: 'sync'
+      }, CONTACTS_APP_ORIGIN);
+      matcherWindow.onunload = function(){
+        window.postMessage({
+          type: 'window_close'
+        }, CONTACTS_APP_ORIGIN);
+      };
+    }, false);
+  }
+
+  // This function can also be executed when other messages arrive
+  // That's why we cannot call notifySettings outside the switch block
+  function messageHandler(e) {
+    if (!currentURL || e.origin !== CONTACTS_APP_ORIGIN) {
+      return;
+    }
+
+    var data = e.data;
+
+    switch (data.type) {
+      case 'ready':
+        matcherWindow.postMessage({
+          type: 'dom_transition_end',
+          data: ''
+        }, CONTACTS_APP_ORIGIN);
+        window.dispatchEvent(new CustomEvent('image-loader-pause'));
+        break;
+      case 'window_close':
+        closeWindow(data.messageId, data.additionalMessageId);
+        break;
+      case 'show_duplicate_contacts':
+        matcherWindow.postMessage(data, CONTACTS_APP_ORIGIN);
+        break;
+      case 'duplicate_contacts_merged':
+        matcherWindow.postMessage(data, CONTACTS_APP_ORIGIN);
+        break;
+    }
+  }
+
+  function unload() {
+    // Attaching again scrolling handlers on the contact list's image loader
+    matcherWindow = currentURL = null;
+    window.dispatchEvent(new CustomEvent('image-loader-resume'));
+  }
+
+  window.addEventListener('message', messageHandler);
+
+  exports.MatchService = matchService;
+
+}(window));