Add SVG icon example to key_silk_cases

tools/perf/page_sets/key_silk_cases.py

 # Copyright 2014 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.
 # pylint: disable=W0401,W0614
 from telemetry.page.actions.all_page_actions import *
 from telemetry.page import page as page_module
 from telemetry.page import page_set as page_set_module
 
 
 class KeySilkCasesPage(page_module.Page):
@@ skipping 546 matching lines @@
         'document.getElementsByClassName("tweet").length > 0')
     action_runner.Wait(1)
 
   def RunSmoothness(self, action_runner):
     interaction = action_runner.BeginGestureInteraction(
         'ScrollAction', is_smooth=True)
     action_runner.ScrollPage(distance=5000)
     interaction.End()
 
 
+class Page27(KeySilkCasesPage):

[dtu, 2014/07/07 22:51:52]

nit: think we'd like to start giving these useful names.

[wiltzius, 2014/07/08 04:20:56]

Done.

+
+  """ Why: Mutating SVG icons; these paint storm and paint slowly. """
+
+  def __init__(self, page_set):
+    super(Page27, self).__init__(
+      url='http://wiltzius.github.io/shape-shifter/',
+      page_set=page_set)
+
+  def RunNavigateSteps(self, action_runner):
+    action_runner.NavigateToPage(self)
+    action_runner.WaitForJavaScriptCondition(
+        'loaded = true')
+    action_runner.Wait(1)
+
+  def RunSmoothness(self, action_runner):
+    for i in range(9):

[nednguyen, 2014/07/07 18:10:01]

nit: maybe xrange(9) instead? 

[wiltzius, 2014/07/08 04:20:56]

Done.

+      button_func = ('document.getElementById("demo").$.'
+                     'buttons.children[%d]') % i
+      interaction = action_runner.BeginInteraction(
+            'Action_TapAction', is_smooth=True)
+      action_runner.TapElement(element_function=button_func)
+      action_runner.Wait(1)

[nduca, 2014/07/07 17:12:35]

it'd be awesome if, on all the demos that use webanim, we can use
WaitForJavascriptExpression(...) so that we dont have hard coded waits... i get
that this isn't that case so ~shrug~ lgtm

[wiltzius, 2014/07/08 04:20:56]

Will do for future examples. This one doesn't use WebAnim; I tried retrofitting
transitionEnd events onto it and it works, but it ends up being a bunch of code
that's more fragile (since you're carefully counting events) than just waiting
for the transition.

+      interaction.End()
+
 class KeySilkCasesPageSet(page_set_module.PageSet):
 
   """ Pages hand-picked for project Silk. """
 
   def __init__(self):
     super(KeySilkCasesPageSet, self).__init__(
       credentials_path='data/credentials.json',
       user_agent_type='mobile',
       archive_data_file='data/key_silk_cases.json',
       bucket=page_set_module.PARTNER_BUCKET)
@@ skipping 17 matching lines @@
     self.AddPage(Page17(self))
     self.AddPage(Page18(self))
     self.AddPage(Page19(self))
     self.AddPage(Page20(self))
     self.AddPage(Page21(self))
     self.AddPage(Page22(self))
     self.AddPage(Page23(self))
     self.AddPage(Page24(self))
     self.AddPage(Page25(self))
     self.AddPage(Page26(self))
+    self.AddPage(Page27(self))