Function notifyProgress

test/angular/1.5/angular-animate.js:2690–2709

(runner, event, phase, data)

      return runner;

      function notifyProgress(runner, event, phase, data) {
        runInNextPostDigestOrNow(function() {
          var callbacks = findCallbacks(parent, element, event);
          if (callbacks.length) {
            // do not optimize this call here to RAF because
            // we don't know how heavy the callback code here will
            // be and if this code is buffered then this can
            // lead to a performance regression.
            $$rAF(function() {
              forEach(callbacks, function(callback) {
                callback(element, phase, data);
              });
              cleanupEventListeners(phase, element);
            });
          } else {
            cleanupEventListeners(phase, element);
          }
        });
        runner.progress(event, phase, data);
      }

      function close(reject) {
        clearGeneratedClasses(element, options);