Add polymer 1.0 to npm_modules

polymer_1.0.4/bower_components/platinum-sw/platinum-sw-register.html

+<!--
+Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
+This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
+The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
+The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
+Code distributed by Google as part of the polymer project is also
+subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
+-->
+<link rel="import" href="../polymer/polymer.html">
+
+<script>
+  (function() {
+    // Grab the URI of this file to use as a base when resolving relative paths.
+    // Fallback to './' as a default, though current browsers that don't support
+    // document.currentScript also don't support service workers.
+    var baseURI = document.currentScript ? document.currentScript.baseURI : './';
+
+    /**
+     * The `<platinum-sw-register>` element handles
+     * [service worker](http://www.html5rocks.com/en/tutorials/service-worker/introduction/)
+     * registration, reflects the overall service worker state, and coordinates the configuration
+     * provided by other Service Worker Elements.
+     * `<platinum-sw-register>` is used as a parent element for child elements in the
+     * `<platinum-sw-*>` group.
+     *
+     *     <platinum-sw-register skip-waiting
+     *                           clients-claim
+     *                           auto-register
+     *                           state="{{state}}"
+     *                           on-service-worker-error="handleSWError"
+     *                           on-service-worker-updated="handleSWUpdated"
+     *                           on-service-worker-installed="handleSWInstalled">
+     *       ...one or more <platinum-sw-*> children which share the service worker registration...
+     *     </platinum-sw-register>
+     *
+     * Please see https://github.com/PolymerElements/platinum-sw#top-level-sw-importjs for a
+     * *crucial* prerequisite file you must create before `<platinum-sw-register>` can be used!
+     *
+     * @demo demo/index.html An offline-capable eReader demo.
+     */
+    Polymer({
+      is: 'platinum-sw-register',
+
+      // Used as an "emergency" switch if we make breaking changes in the way <platinum-sw-register>
+      // talks to service-worker.js. Otherwise, it shouldn't need to change, and isn't meant to be
+      // kept in sync with the element's release number.
+      _version: '1.0',
+
+      /**
+       * Fired when the initial service worker installation completes successfully.
+       * The service worker will normally only be installed once, the first time a page with a
+       * `<platinum-sw-register>` element is visited in a given browser. If the same page is visited
+       * again, the existing service worker will be reused, and there won't be another
+       * `service-worker-installed` fired.
+       *
+       * @event service-worker-installed
+       * @param {String} A message indicating that the installation succeeded.
+       */
+
+      /**
+       * Fired when the service worker update flow completes successfully.
+       * If you make changes to your `<platinum-sw-register>` configuration (i.e. by adding in new
+       * `<platinum-sw-*>` child elements, or changing their attributes), users who had the old
+       * service worker installed will get the update installed when they see the modified elements.
+       *
+       * @event service-worker-updated
+       * @param {String} A message indicating that the update succeeded.
+       */
+
+      /**
+       * Fired when an error prevents the service worker installation from completing.
+       *
+       * @event service-worker-error
+       * @param {String} A message indicating what went wrong.
+       */
+
+      properties: {
+        /**
+         * Whether this element should automatically register the corresponding service worker as
+         * soon as its added to a page.
+         *
+         * If set to `false`, then the service worker won't be automatically registered, and you
+         * must call this element's `register()` method if you want service worker functionality.
+         * This is useful if, for example, the service worker needs to be configured using
+         * information that isn't immediately available at the time the page loads.
+         *
+         * If set to `true`, the service worker will be automatically registered without having to
+         * call any methods.
+         */
+        autoRegister: {
+          type: Boolean,
+          value: false
+        },
+
+        /**
+         * Whether the activated service worker should [take immediate control](https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#clients-claim-method)
+         * of any pages under its scope.
+         *
+         * If this is `false`, the service worker won't have any effect until the next time the page
+         * is visited/reloaded.
+         * If this is `true`, it will take control and start handling events for the current page
+         * (and any pages under the same scope open in other tabs/windows) as soon it's active.
+         * @see {@link https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#clients-claim-method}
+         */
+        clientsClaim: {
+          type: Boolean,
+          value: false
+        },
+
+        /**
+         * The service worker script that is [registered](https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#navigator-service-worker-register).
+         * The script *should* be located at the top level of your site, to ensure that it is able
+         * to control all the pages on your site.
+         *
+         * It's *strongly* recommended that you create a top-level file named `sw-import.js`
+         * containing only:
+         *
+         * `importScripts('bower_components/platinum-sw/service-worker.js');`
+         *
+         * (adjust to match the path where your `platinum-sw` element directory can be found).
+         *
+         * This will ensure that your service worker script contains everything needed to play
+         * nicely with the Service Worker Elements group.
+         *
+         * @see {@link https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#navigator-service-worker-register}
+         */
+        href: {
+          type: String,
+          value: 'sw-import.js'
+        },
+
+        /**
+         * Whether the page should be automatically reloaded (via `window.location.reload()`) when
+         * the service worker is successfully installed.
+         *
+         * While it's perfectly valid to continue using a page with a freshly installed service
+         * worker, it's a common pattern to want to reload it immediately following the install.
+         * This ensures that, for example, if you're using a `<platinum-sw-cache>` with an on the
+         * fly caching strategy, it will get a chance to intercept all the requests needed to render
+         * your page and store them in the cache.
+         *
+         * If you don't immediately reload your page, then any resources that were loaded before the
+         * service worker was installed (e.g. this `platinum-sw-register.html` file) won't be present
+         * in the cache until the next time the page is loaded.
+         *
+         * Note that this reload will only happen when a service worker is installed for the first
+         * time. If the service worker is subsequently updated, it won't trigger another reload.
+         */
+        reloadOnInstall: {
+          type: Boolean,
+          value: false
+        },
+
+        /**
+         * The scope of the service worker, relative to the registered service worker script.
+         * All pages that fall under this scope will be controlled by the registered service worker.
+         *
+         * Normally, this would not need to be changed, unless you want the service worker to only
+         * apply to a subset of your site.
+         *
+         * @see {@link https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#navigator-service-worker-register}
+         */
+        scope: {
+          type: String,
+          value: './'
+        },
+
+        /**
+         * Whether an updated service worker should [bypass the `waiting` state](https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#service-worker-global-scope-skipwaiting)
+         * and immediately become `active`.
+         *
+         * Normally, during an update, the new service worker stays in the
+         * `waiting` state until the current page and any other tabs/windows that are using the old
+         * service worker are unloaded.
+         *
+         * If this is `false`, an updated service worker won't be activated until all instances of
+         * the old server worker have been unloaded.
+         *
+         * If this is `true`, an updated service worker will become `active` immediately.
+         * @see {@link https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#service-worker-global-scope-skipwaiting}
+         */
+        skipWaiting: {
+          type: Boolean,
+          value: false
+        },
+
+        /**
+         * The current state of the service worker registered by this element.
+         *
+         * One of:
+         * - 'installed'
+         * - 'updated'
+         * - 'error'
+         * - 'unsupported'
+         */
+        state: {
+          notify: true,
+          readOnly: true,
+          type: String
+        }
+      },
+
+      /**
+       * Registers the service worker based on the configuration options in this element and any
+       * child elements.
+       *
+       * If you set the `autoRegister` property to `true`, then this method is called automatically
+       * at page load.
+       * It can be useful to set `autoRegister` to `false` and then explicitly call this method if
+       * there are options that are only configured after the page is loaded.
+       */
+      register: function() {
+        if ('serviceWorker' in navigator) {
+          this._constructServiceWorkerUrl().then(function(serviceWorkerUrl) {
+            this._registerServiceWorker(serviceWorkerUrl);
+          }.bind(this));
+        } else {
+          this._setState('unsupported');
+          this.fire('service-worker-error', 'Service workers are not available in the current browser.');
+        }
+      },
+
+      _constructServiceWorkerUrl: function() {
+        var paramsPromises = [];
+        var children = Polymer.dom(this).childNodes;
+        for (var i = 0; i < children.length; i++) {
+          if (typeof children[i]._getParameters === 'function') {
+            paramsPromises.push(children[i]._getParameters(baseURI));
+          }
+        }
+
+        return Promise.all(paramsPromises).then(function(paramsResolutions) {
+          var params = {
+            baseURI: baseURI,
+            version: this._version
+          };
+
+          paramsResolutions.forEach(function(childParams) {
+            Object.keys(childParams).forEach(function(key) {
+              if (Array.isArray(params[key])) {
+                params[key].push(childParams[key]);
+              } else {
+                params[key] = [childParams[key]];
+              }
+            });
+          });
+
+          return params;
+        }.bind(this)).then(function(params) {
+          if (params.importscriptLate) {
+            if (params.importscript) {
+              params.importscript = params.importscript.concat(params.importscriptLate);
+            } else {
+              params.importscript = params.importscriptLate;
+            }
+          }
+
+          if (params.importscript) {
+            params.importscript = this._unique(params.importscript);
+          }
+
+          params.clientsClaim = this.clientsClaim;
+          params.skipWaiting = this.skipWaiting;
+
+          var serviceWorkerUrl = new URL(this.href, window.location);
+          // It's very important to ensure that the serialization is stable.
+          // Serializing the same settings should always produce the same URL.
+          // Serializing different settings should always produce a different URL.
+          // This ensures that the service worker upgrade flow is triggered when settings change.
+          serviceWorkerUrl.search = this._serializeUrlParams(params);
+
+          return serviceWorkerUrl;
+        }.bind(this));
+      },
+
+      _unique: function(arr) {
+        return arr.filter(function(item, index) {
+          return arr.indexOf(item) === index;
+        });
+      },
+
+      _serializeUrlParams: function(params) {
+        return Object.keys(params).sort().map(function(key) {
+          // encodeURIComponent(['a', 'b']) => 'a%2Cb',
+          // so this will still work when the values are Arrays.
+          // TODO: It won't work if the values in the Arrays have ',' characters in them.
+          return encodeURIComponent(key) + "=" + encodeURIComponent(params[key]);
+        }).join('&');
+      },
+
+      _registerServiceWorker: function(serviceWorkerUrl) {
+        navigator.serviceWorker.register(serviceWorkerUrl, {scope: this.scope}).then(function(registration) {
+          if (registration.active) {
+            this._setState('installed');
+          }
+
+          registration.onupdatefound = function() {
+            var installingWorker = registration.installing;
+            installingWorker.onstatechange = function() {
+              switch (installingWorker.state) {
+                case 'installed':
+                  if (navigator.serviceWorker.controller) {
+                    this._setState('updated');
+                    this.fire('service-worker-updated',
+                      'A new service worker was installed, replacing the old service worker.');
+                  } else {
+                    if (this.reloadOnInstall) {
+                      window.location.reload();
+                    } else {
+                      this._setState('installed');
+                      this.fire('service-worker-installed', 'A new service worker was installed.');
+                    }
+                  }
+                break;
+
+                case 'redundant':
+                  this._setState('error');
+                  this.fire('service-worker-error', 'The installing service worker became redundant.');
+                break;
+              }
+            }.bind(this);
+          }.bind(this);
+        }.bind(this)).catch(function(error) {
+          this._setState('error');
+          this.fire('service-worker-error', error.toString());
+          if (error.name === 'NetworkError') {
+            var location = serviceWorkerUrl.origin + serviceWorkerUrl.pathname;
+            console.error('A valid service worker script was not found at ' + location + '\n' +
+              'To learn how to fix this, please see\n' +
+              'https://github.com/PolymerElements/platinum-sw#top-level-sw-importjs');
+          }
+        }.bind(this));
+      },
+
+      attached: function() {
+        if (this.autoRegister) {
+          this.async(this.register);
+        }
+      }
+    });
+  })();
+</script>