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gaia/dev_apps/contacts-ds-provider1/js/app.js

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+/* global Google */
+
+'use strict';
+
+var App = function App() {
+
+  var store = null;
+  var info = null;
+  var fillButton, resetButton;
+
+  var DS_NAME = 'contacts';
+
+  var init = function init() {
+    info = document.getElementById('info');
+    fillButton = document.getElementById('fillDS');
+    resetButton = document.getElementById('resetDS');
+
+    fillButton.addEventListener('click', handleEvent);
+    resetButton.addEventListener('click', handleEvent);
+
+    initDS();
+  };
+
+  function handleEvent(evt) {
+    var btn = evt.target.id;
+
+    switch (btn) {
+      case 'fillDS':
+      fillButton.disabled = true;
+      Google.initLogin(store, function(t) {
+        Google.importContacts(function() {
+          fillButton.disabled = false;
+          store.getLength().then(function(count) {
+            info.textContent = count + ' elements';
+          });
+        });
+      });
+      break;
+      case 'resetDS':
+      store.clear().then(function() {
+        store.getLength().then(function(count) {
+          info.textContent = count + ' elements';
+        });
+      });
+      break;
+      default:
+      break;
+    }
+  }
+
+  function initDS() {
+    function storeError() {
+      info.textContent = 'Error getting store';
+    }
+
+    if (!navigator.getDataStores) {
+      info.textContent = 'NO DataStore API!';
+      return;
+    }
+
+    navigator.getDataStores(DS_NAME).then(function(ds) {
+      if (!ds || ds.length < 1) {
+        storeError();
+        return;
+      }
+      ds.forEach(function onDs(datastore) {
+        if (datastore.owner.indexOf('provider1')) {
+          store = datastore;
+          console.log('Got store ' + store.owner);
+        }
+      });
+
+      store.getLength().then(function(count) {
+        info.textContent = count + ' elements';
+      });
+    }, function() {
+      storeError();
+    });
+  }
+
+  return {
+    init: init
+  };
+
+}();
+
+App.init();