ui/events/gesture_detection/motion_event.cc

   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 #include "ui/events/gesture_detection/motion_event.h"
   6
   7 #include "base/logging.h"
   8
   9 namespace ui {
  10
  11 size_t MotionEvent::GetHistorySize() const {
  12   return 0;
  13 }
  14
  15 base::TimeTicks MotionEvent::GetHistoricalEventTime(
  16     size_t historical_index) const {
  17   NOTIMPLEMENTED();
  18   return base::TimeTicks();
  19 }
  20
  21 float MotionEvent::GetHistoricalTouchMajor(size_t pointer_index,
  22                                            size_t historical_index) const {
  23   NOTIMPLEMENTED();
  24   return 0.f;
  25 }
  26
  27 float MotionEvent::GetHistoricalX(size_t pointer_index,
  28                                   size_t historical_index) const {
  29   NOTIMPLEMENTED();
  30   return 0.f;
  31 }
  32
  33 float MotionEvent::GetHistoricalY(size_t pointer_index,
  34                                   size_t historical_index) const {
  35   NOTIMPLEMENTED();
  36   return 0.f;
  37 }
  38
  39 int MotionEvent::FindPointerIndexOfId(int id) const {
  40   const size_t pointer_count = GetPointerCount();
  41   for (size_t i = 0; i < pointer_count; ++i) {
  42     if (GetPointerId(i) == id)
  43       return static_cast<int>(i);
  44   }
  45   return -1;
  46 }
  47
  48 bool operator==(const MotionEvent& lhs, const MotionEvent& rhs) {
  49   if (lhs.GetId() != rhs.GetId() || lhs.GetAction() != rhs.GetAction() ||
  50       lhs.GetActionIndex() != rhs.GetActionIndex() ||
  51       lhs.GetPointerCount() != rhs.GetPointerCount() ||
  52       lhs.GetButtonState() != rhs.GetButtonState() ||
  53       lhs.GetEventTime() != rhs.GetEventTime() ||
  54       lhs.GetHistorySize() != rhs.GetHistorySize())
  55     return false;
  56
  57   for (size_t i = 0; i < lhs.GetPointerCount(); ++i) {
  58     int rhsi = rhs.FindPointerIndexOfId(lhs.GetPointerId(i));
  59     if (rhsi == -1)
  60       return false;
  61
  62     if (lhs.GetX(i) != rhs.GetX(rhsi) || lhs.GetY(i) != rhs.GetY(rhsi) ||
  63         lhs.GetRawX(i) != rhs.GetRawX(rhsi) ||
  64         lhs.GetRawY(i) != rhs.GetRawY(rhsi) ||
  65         lhs.GetTouchMajor(i) != rhs.GetTouchMajor(rhsi) ||
  66         lhs.GetPressure(i) != rhs.GetPressure(rhsi) ||
  67         lhs.GetToolType(i) != rhs.GetToolType(rhsi))
  68       return false;
  69
  70     for (size_t h = 0; h < lhs.GetHistorySize(); ++h) {
  71       if (lhs.GetHistoricalX(i, h) != rhs.GetHistoricalX(rhsi, h) ||
  72           lhs.GetHistoricalY(i, h) != rhs.GetHistoricalY(rhsi, h) ||
  73           lhs.GetHistoricalTouchMajor(i, h) !=
  74               rhs.GetHistoricalTouchMajor(rhsi, h))
  75         return false;
  76     }
  77   }
  78
  79   for (size_t h = 0; h < lhs.GetHistorySize(); ++h) {
  80     if (lhs.GetHistoricalEventTime(h) != rhs.GetHistoricalEventTime(h))
  81       return false;
  82   }
  83
  84   return true;
  85 }
  86
  87 bool operator!=(const MotionEvent& lhs, const MotionEvent& rhs) {
  88   return !(lhs == rhs);
  89 }
  90
  91 }  // namespace ui