Re-land "Issue 191223007: Move touch CTM from X into Chrome"

ui/events/x/device_data_manager.h

 // Copyright 2013 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.
 
 #ifndef UI_EVENTS_X_DEVICE_DATA_MANAGER_H_
 #define UI_EVENTS_X_DEVICE_DATA_MANAGER_H_
 
 // Generically-named #defines from Xlib is conflicting with symbols in GTest.
 // So many tests .cc file #undef Bool before including device_data_manager.h,
 // which makes Bool unrecognized in XInput2.h.
 #ifndef Bool
 #define Bool int
 #endif
 
 #include <X11/extensions/XInput2.h>
 
 #include <bitset>
 #include <map>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/event_types.h"
+#include "base/memory/scoped_ptr.h"
+#include "ui/events/event.h"
 #include "ui/events/event_constants.h"
 #include "ui/events/events_base_export.h"
+#include "ui/gfx/geometry/rect.h"
+#include "ui/gfx/transform.h"
 #include "ui/gfx/x/x11_atom_cache.h"
 
 template <typename T> struct DefaultSingletonTraits;
 
 typedef union _XEvent XEvent;
 
 namespace ui {
 
 // CrOS touchpad metrics gesture types
 enum GestureMetricsType {
@@ skipping 175 matching lines @@
   // This function is only for test purpose. It does not query the X server for
   // the actual device info, but rather inits the relevant valuator structures
   // to have safe default values for testing.
   void SetDeviceListForTest(const std::vector<unsigned int>& touchscreen,
                             const std::vector<unsigned int>& cmt_devices);
 
   void SetValuatorDataForTest(XIDeviceEvent* xievent,
                               DataType type,
                               double value);
 
+  void ClearTouchTransformerRecord();
+  void UpdateTouchInfoForDisplay(int64 display_id,
+                                 int touch_device_id,
+                                 const gfx::Transform& touch_transformer);
+  void ApplyTouchTransformer(int touch_device_id, float* x, float* y);
+  int64 GetDisplayForTouchDevice(int touch_device_id) const;
+  bool TouchEventNeedsCalibrate(int touch_device_id) const;
+
  private:
   // Requirement for Singleton.
   friend struct DefaultSingletonTraits<DeviceDataManager>;
 
   DeviceDataManager();
   ~DeviceDataManager();
 
   // Initialize the XInput related system information.
   bool InitializeXInputInternal();
 
   // Check if an XI event contains data of the specified type.
   bool HasEventData(const XIDeviceEvent* xiev, const DataType type) const;
 
   void InitializeValuatorsForTest(int deviceid,
                                   int start_valuator,
                                   int end_valuator,
                                   double min_value,
                                   double max_value);
 
+  bool IsTouchDeviceIdValid(int touch_device_id) const;
+
   static const int kMaxDeviceNum = 128;
   static const int kMaxXIEventType = XI_LASTEVENT + 1;
   static const int kMaxSlotNum = 10;
 
   // Major opcode for the XInput extension. Used to identify XInput events.
   int xi_opcode_;
 
   // A quick lookup table for determining if the XI event is an XIDeviceEvent.
   std::bitset<kMaxXIEventType> xi_device_event_types_;
 
@@ skipping 26 matching lines @@
   // doesn't think X/device doesn't know about the valuators. We currently
   // use this only on touchscreen devices.
   std::vector<double> last_seen_valuator_[kMaxDeviceNum][kMaxSlotNum];
 
   // X11 atoms cache.
   X11AtomCache atom_cache_;
 
   unsigned char button_map_[256];
   int button_map_count_;
 
+  // Table to keep track of which display id is mapped to which touch device.
+  int64 touch_device_to_display_map_[kMaxDeviceNum];
+  // Index table to find the TouchTransformer for a touch device.
+  gfx::Transform touch_device_transformer_map_[kMaxDeviceNum];
+
   DISALLOW_COPY_AND_ASSIGN(DeviceDataManager);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_X_DEVICE_DATA_MANAGER_H_