tools/perf/benchmarks/text_selection.py

   1 # Copyright 2014 The Chromium Authors. All rights reserved.
   2 # Use of this source code is governed by a BSD-style license that can be
   3 # found in the LICENSE file.
   4
   5 from core import perf_benchmark
   6
   7 from telemetry import benchmark
   8 from telemetry.timeline import tracing_category_filter
   9 from telemetry.web_perf import timeline_based_measurement
  10
  11 import page_sets
  12
  13 TEXT_SELECTION_CATEGORY = 'blink'
  14 TIMELINE_REQUIRED_CATEGORY = 'blink.console'
  15
  16
  17 class _TextSelection(perf_benchmark.PerfBenchmark):
  18   page_set = page_sets.TextSelectionSitesPageSet
  19
  20   def CreateTimelineBasedMeasurementOptions(self):
  21     cat_filter = tracing_category_filter.CreateMinimalOverheadFilter()
  22     cat_filter.AddIncludedCategory(TEXT_SELECTION_CATEGORY)
  23     cat_filter.AddIncludedCategory(TIMELINE_REQUIRED_CATEGORY)
  24
  25     return timeline_based_measurement.Options(
  26         overhead_level=cat_filter)
  27
  28   @classmethod
  29   def Name(cls):
  30     return 'text_selection'
  31
  32   @classmethod
  33   def ValueCanBeAddedPredicate(cls, value, is_first_result):
  34     if 'text-selection' not in value.name:
  35       return False
  36     return value.values != None
  37
  38
  39 @benchmark.Enabled('android')
  40 class TextSelectionDirection(_TextSelection):
  41   """Measure text selection metrics while dragging a touch selection handle on a
  42   subset of top ten mobile sites and using the 'direction' touch selection
  43   strategy."""
  44   def SetExtraBrowserOptions(self, options):
  45     options.AppendExtraBrowserArgs(['--touch-selection-strategy=direction'])
  46
  47   @classmethod
  48   def Name(cls):
  49     return 'text_selection.direction'
  50
  51
  52 @benchmark.Enabled('android')
  53 class TextSelectionCharacter(_TextSelection):
  54   """Measure text selection metrics while dragging a touch selection handle on a
  55   subset of top ten mobile sites and using the 'character' touch selection
  56   strategy."""
  57   def SetExtraBrowserOptions(self, options):
  58     options.AppendExtraBrowserArgs(['--touch-selection-strategy=character'])
  59
  60   @classmethod
  61   def Name(cls):
  62     return 'text_selection.character'