src/ppapi/shared_impl/ppb_input_event_shared.h

   1 // Copyright (c) 2012 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 #ifndef PPAPI_SHARED_IMPL_PPB_INPUT_EVENT_SHARED_H_
   6 #define PPAPI_SHARED_IMPL_PPB_INPUT_EVENT_SHARED_H_
   7
   8 #include <string>
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/compiler_specific.h"
  13 #include "ppapi/c/ppb_input_event.h"
  14 #include "ppapi/shared_impl/resource.h"
  15 #include "ppapi/thunk/ppb_input_event_api.h"
  16 #include "ui/events/latency_info.h"
  17
  18 namespace ppapi {
  19
  20 // IF YOU ADD STUFF TO THIS CLASS
  21 // ==============================
  22 // Be sure to add it to the STRUCT_TRAITS at the top of ppapi_messages.h
  23 struct PPAPI_SHARED_EXPORT InputEventData {
  24   InputEventData();
  25   ~InputEventData();
  26
  27   // Internal-only value. Set to true when this input event is filtered, that
  28   // is, should be delivered synchronously. This is used by the proxy.
  29   bool is_filtered;
  30
  31   PP_InputEvent_Type event_type;
  32   PP_TimeTicks event_time_stamp;
  33   uint32_t event_modifiers;
  34
  35   PP_InputEvent_MouseButton mouse_button;
  36   PP_Point mouse_position;
  37   int32_t mouse_click_count;
  38   PP_Point mouse_movement;
  39
  40   PP_FloatPoint wheel_delta;
  41   PP_FloatPoint wheel_ticks;
  42   bool wheel_scroll_by_page;
  43
  44   uint32_t key_code;
  45
  46   // The key event's |code| attribute as defined in:
  47   // http://www.w3.org/TR/uievents/
  48   std::string code;
  49
  50   std::string character_text;
  51
  52   std::vector<uint32_t> composition_segment_offsets;
  53   int32_t composition_target_segment;
  54   uint32_t composition_selection_start;
  55   uint32_t composition_selection_end;
  56
  57   std::vector<PP_TouchPoint> touches;
  58   std::vector<PP_TouchPoint> changed_touches;
  59   std::vector<PP_TouchPoint> target_touches;
  60
  61   ui::LatencyInfo latency_info;
  62 };
  63
  64 // This simple class implements the PPB_InputEvent_API in terms of the
  65 // shared InputEventData structure
  66 class PPAPI_SHARED_EXPORT PPB_InputEvent_Shared
  67     : public Resource,
  68       public thunk::PPB_InputEvent_API {
  69  public:
  70   PPB_InputEvent_Shared(ResourceObjectType type,
  71                         PP_Instance instance,
  72                         const InputEventData& data);
  73
  74   // Resource overrides.
  75   virtual PPB_InputEvent_API* AsPPB_InputEvent_API() override;
  76
  77   // PPB_InputEvent_API implementation.
  78   virtual const InputEventData& GetInputEventData() const override;
  79   virtual PP_InputEvent_Type GetType() override;
  80   virtual PP_TimeTicks GetTimeStamp() override;
  81   virtual uint32_t GetModifiers() override;
  82   virtual PP_InputEvent_MouseButton GetMouseButton() override;
  83   virtual PP_Point GetMousePosition() override;
  84   virtual int32_t GetMouseClickCount() override;
  85   virtual PP_Point GetMouseMovement() override;
  86   virtual PP_FloatPoint GetWheelDelta() override;
  87   virtual PP_FloatPoint GetWheelTicks() override;
  88   virtual PP_Bool GetWheelScrollByPage() override;
  89   virtual uint32_t GetKeyCode() override;
  90   virtual PP_Var GetCharacterText() override;
  91   virtual PP_Var GetCode() override;
  92   virtual uint32_t GetIMESegmentNumber() override;
  93   virtual uint32_t GetIMESegmentOffset(uint32_t index) override;
  94   virtual int32_t GetIMETargetSegment() override;
  95   virtual void GetIMESelection(uint32_t* start, uint32_t* end) override;
  96   virtual void AddTouchPoint(PP_TouchListType list,
  97                              const PP_TouchPoint& point) override;
  98   virtual uint32_t GetTouchCount(PP_TouchListType list) override;
  99   virtual PP_TouchPoint GetTouchByIndex(PP_TouchListType list,
 100                                         uint32_t index) override;
 101   virtual PP_TouchPoint GetTouchById(PP_TouchListType list,
 102                                      uint32_t id) override;
 103   virtual PP_Bool TraceInputLatency(PP_Bool has_damage) override;
 104
 105   // Implementations for event creation.
 106   static PP_Resource CreateIMEInputEvent(ResourceObjectType type,
 107                                          PP_Instance instance,
 108                                          PP_InputEvent_Type event_type,
 109                                          PP_TimeTicks time_stamp,
 110                                          struct PP_Var text,
 111                                          uint32_t segment_number,
 112                                          const uint32_t* segment_offsets,
 113                                          int32_t target_segment,
 114                                          uint32_t selection_start,
 115                                          uint32_t selection_end);
 116   static PP_Resource CreateKeyboardInputEvent(ResourceObjectType type,
 117                                               PP_Instance instance,
 118                                               PP_InputEvent_Type event_type,
 119                                               PP_TimeTicks time_stamp,
 120                                               uint32_t modifiers,
 121                                               uint32_t key_code,
 122                                               struct PP_Var character_text,
 123                                               struct PP_Var code);
 124   static PP_Resource CreateMouseInputEvent(
 125       ResourceObjectType type,
 126       PP_Instance instance,
 127       PP_InputEvent_Type event_type,
 128       PP_TimeTicks time_stamp,
 129       uint32_t modifiers,
 130       PP_InputEvent_MouseButton mouse_button,
 131       const PP_Point* mouse_position,
 132       int32_t click_count,
 133       const PP_Point* mouse_movement);
 134   static PP_Resource CreateWheelInputEvent(ResourceObjectType type,
 135                                            PP_Instance instance,
 136                                            PP_TimeTicks time_stamp,
 137                                            uint32_t modifiers,
 138                                            const PP_FloatPoint* wheel_delta,
 139                                            const PP_FloatPoint* wheel_ticks,
 140                                            PP_Bool scroll_by_page);
 141   static PP_Resource CreateTouchInputEvent(ResourceObjectType type,
 142                                            PP_Instance instance,
 143                                            PP_InputEvent_Type event_type,
 144                                            PP_TimeTicks time_stamp,
 145                                            uint32_t modifiers);
 146
 147  private:
 148   InputEventData data_;
 149
 150   DISALLOW_IMPLICIT_CONSTRUCTORS(PPB_InputEvent_Shared);
 151 };
 152
 153 }  // namespace ppapi
 154
 155 #endif  // PPAPI_SHARED_IMPL_PPB_INPUT_EVENT_SHARED_H_