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