Telemetry benchmark key_desktop_move_pages.

tools/perf/page_sets/key_desktop_move_cases.py

+# Copyright 2015 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.page import page as page_module
+from telemetry.page import page_set as page_set_module
+
+
+class KeyDesktopMoveCasesPage(page_module.Page):
+
+  def __init__(self, url, page_set, name='', credentials=None):
+    super(KeyDesktopMoveCasesPage, self).__init__(
+        url=url, page_set=page_set, name=name,
+        credentials_path = 'data/credentials.json')

[Sami, 2015/03/25 20:55:00]

nit: no spaces around the '='.

[ssid, 2015/03/27 10:43:05]

Done.

+    self.archive_data_file = 'data/key_desktop_move_cases.json'
+    self.user_agent_type = 'desktop'
+    self.credentials = credentials
+
+
+class GmailMouseScrollPage(KeyDesktopMoveCasesPage):
+
+  """ Why: productivity, top google properties """
+
+  def __init__(self, page_set):
+    super(GmailMouseScrollPage, self).__init__(
+      url='https://mail.google.com/mail/',
+      page_set=page_set)
+
+    self.scrollable_element_function = '''
+      function(callback) {
+        gmonkey.load('2.0', function(api) {
+          callback(api.getScrollableElement());
+        });
+      }'''
+    self.credentials = 'google'
+
+  def RunNavigateSteps(self, action_runner):
+    super(GmailMouseScrollPage, self).RunNavigateSteps(action_runner)
+    action_runner.WaitForJavaScriptCondition(
+        'window.gmonkey !== undefined &&'
+        'document.getElementById("gb") !== null')
+    # This check is needed for gmonkey to load completely.
+    action_runner.WaitForJavaScriptCondition(
+        'document.readyState == "complete"')
+
+  def RunPageInteractions(self, action_runner):
+    action_runner.ExecuteJavaScript('''
+        gmonkey.load('2.0', function(api) {
+          window.__scrollableElementForTelemetry = api.getScrollableElement();
+        });''')
+    action_runner.WaitForJavaScriptCondition(
+        'window.__scrollableElementForTelemetry != null')
+    scrollbar_x, start_y, end_y = self._CalculateScrollBarRatios(action_runner)
+
+    interaction = action_runner.BeginGestureInteraction(
+        'DragAction')
+    action_runner.DragPage(left_start_ratio=scrollbar_x,
+        top_start_ratio=start_y, left_end_ratio=scrollbar_x,
+        top_end_ratio=end_y, speed_in_pixels_per_second=100,
+        element_function='window.__scrollableElementForTelemetry')
+    interaction.End()
+
+  def _CalculateScrollBarRatios(self, action_runner):
+    viewport_height = float(action_runner.EvaluateJavaScript(
+        'window.__scrollableElementForTelemetry.clientHeight'))
+    content_height = float(action_runner.EvaluateJavaScript(
+        'window.__scrollableElementForTelemetry.scrollHeight'))
+    viewport_width = float(action_runner.EvaluateJavaScript(
+        'window.__scrollableElementForTelemetry.offsetWidth'))
+    scrollbar_width = float(action_runner.EvaluateJavaScript('''
+        window.__scrollableElementForTelemetry.offsetWidth -
+        window.__scrollableElementForTelemetry.scrollWidth'''))
+
+    # This calculation is correct only when the element doesn't have border or
+    # padding or scroll buttons (eg: gmail mail element).
+    scrollbar_start_mid_y = viewport_height / (2 * content_height)
+    scrollbar_end_mid_y = 1 - scrollbar_start_mid_y
+    scrollbar_mid_x_offset = scrollbar_width / (2 * viewport_width)
+    scrollbar_mid_x = 1 - scrollbar_mid_x_offset
+    return scrollbar_mid_x, scrollbar_start_mid_y, scrollbar_end_mid_y

[picksi, 2015/03/25 14:13:05]

As per our conversation: The purpose of the scroll bar calculations above are
not clear. If you are able to break these down a little and explain what each
result is that would be helpful; I think you have simplified the maths too far!

[ssid, 2015/03/27 10:43:04]

Done.

+
+
+class GoogleMapsPage(KeyDesktopMoveCasesPage):
+
+  """ Why: productivity, top google properties; Supports drag gesturee """
+
+  def __init__(self, page_set):
+    super(GoogleMapsPage, self).__init__(
+        url='https://www.google.co.uk/maps/@51.5043968,-0.1526806',
+        page_set=page_set,
+        name='Maps')
+
+  def RunNavigateSteps(self, action_runner):
+    super(GoogleMapsPage, self).RunNavigateSteps(action_runner)
+    action_runner.WaitForElement(selector='.widget-scene-canvas')
+    action_runner.WaitForElement(selector='.widget-zoom-in')
+    action_runner.WaitForElement(selector='.widget-zoom-out')
+
+  def RunPageInteractions(self, action_runner):
+    for _ in range(3):

[picksi, 2015/03/25 14:13:04]

I didn't know you could do this! I assume this is an anonymous loop?

+      action_runner.Wait(2)
+      interaction = action_runner.BeginGestureInteraction(
+          'DragAction', repeatable=True)
+      action_runner.DragPage(left_start_ratio=0.5, top_start_ratio=0.75,
+                             left_end_ratio=0.75, top_end_ratio=0.5)
+      interaction.End()
+    # TODO(ssid): Add zoom gestures after fixing bug crbug.com/462214.
+
+
+class KeyDesktopMoveCasesPageSet(page_set_module.PageSet):
+
+  """ Special cases for move gesture """
+
+  def __init__(self):
+    super(KeyDesktopMoveCasesPageSet, self).__init__(
+      archive_data_file='data/key_desktop_move_cases.json',
+      bucket=page_set_module.PARTNER_BUCKET)
+
+    self.AddUserStory(GmailMouseScrollPage(self))
+    self.AddUserStory(GoogleMapsPage(self))