Simulate interactivity boost for simulated user input events

telemetry/telemetry/internal/actions/scroll.py

 # Copyright 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from telemetry.internal.actions import page_action
 from telemetry.internal.actions import utils
 from telemetry.util import js_template
 
 
 class ScrollAction(page_action.PageAction):
@@ skipping 22 matching lines @@
                                       synthetic_gesture_source)
 
     self._distance_func = js_template.RenderValue(None)
     if distance:
       assert not distance_expr
       distance_expr = str(distance)
     if distance_expr:
       self._distance_func = js_template.Render(
           'function() { return 0 + {{ @expr }}; }', expr=distance_expr)
 
+  def SimulatesUserInput(self):
+    return True
+
   def WillRunAction(self, tab):
     if self._direction in ('downleft', 'downright', 'upleft', 'upright'):
       # Diagonal scrolling support was added in Chrome branch number 2332.
       branch_num = (
           tab.browser._browser_backend.devtools_client.GetChromeBranchNumber())
       if branch_num < 2332:
         raise ValueError('Diagonal scrolling requires Chrome branch number'
                          ' 2332 or later. Found branch number %d' %
                          branch_num)
     utils.InjectJavaScript(tab, 'gesture_common.js')
@@ skipping 48 matching lines @@
         }''',
         left_start_ratio=self._left_start_ratio,
         top_start_ratio=self._top_start_ratio,
         direction=self._direction,
         speed=self._speed,
         gesture_source_type=gesture_source_type)
     page_action.EvaluateCallbackWithElement(
         tab, code, selector=self._selector, text=self._text,
         element_function=self._element_function)
     tab.WaitForJavaScriptCondition('window.__scrollActionDone', timeout=60)