Rename polymer and cr_elements v0_8 to v1_0

third_party/polymer/v0_8/components-chromium/iron-signals/iron-signals-extracted.js

-
-(function(){
-/**
-`iron-signals` provides basic publish-subscribe functionality.
-
-Note: avoid using `iron-signals` whenever you can use
-a controller (parent element) to mediate communication
-instead.
-
-To send a signal, fire a custom event of type `iron-signal`, with
-a detail object containing `name` and `data` fields.
-
-    this.fire('iron-signal', {name: 'hello', data: null});
-
-To receive a signal, listen for `iron-signal-<name>` event on a
-`iron-signals` element.
-
-  <iron-signals on-iron-signal-hello="{{helloSignal}}">
-
-You can fire a signal event from anywhere, and all
-`iron-signals` elements will receive the event, regardless
-of where they are in DOM.
-
-@demo demo/index.html
-*/
-  Polymer({
-    is: 'iron-signals',
-
-    attached: function() {
-      signals.push(this);
-    },
-    detached: function() {
-      var i = signals.indexOf(this);
-      if (i >= 0) {
-        signals.splice(i, 1);
-      }
-    }
-  });
-
-  // private shared database
-  var signals = [];
-
-  // signal dispatcher
-  function notify(name, data) {
-    // convert generic-signal event to named-signal event
-    var signal = new CustomEvent('iron-signal-' + name, {
-      // if signals bubble, it's easy to get confusing duplicates
-      // (1) listen on a container on behalf of local child
-      // (2) some deep child ignores the event and it bubbles
-      //     up to said container
-      // (3) local child event bubbles up to container
-      // also, for performance, we avoid signals flying up the
-      // tree from all over the place
-      bubbles: false,
-      detail: data
-    });
-    // dispatch named-signal to all 'signals' instances,
-    // only interested listeners will react
-    signals.forEach(function(s) {
-      s.dispatchEvent(signal);
-    });
-  }
-
-  // signal listener at document
-  document.addEventListener('iron-signal', function(e) {
-    notify(e.detail.name, e.detail.data);
-  });
-
-})();