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
  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   uint32_t usb_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
  62 // This simple class implements the PPB_InputEvent_API in terms of the
  63 // shared InputEventData structure
  64 class PPAPI_SHARED_EXPORT PPB_InputEvent_Shared
  65     : public Resource,
  66       public thunk::PPB_InputEvent_API {
  67  public:
  68   PPB_InputEvent_Shared(ResourceObjectType type,
  69                         PP_Instance instance,
  70                         const InputEventData& data);
  71
  72   // Resource overrides.
  73   virtual PPB_InputEvent_API* AsPPB_InputEvent_API() OVERRIDE;
  74
  75   // PPB_InputEvent_API implementation.
  76   virtual const InputEventData& GetInputEventData() const OVERRIDE;
  77   virtual PP_InputEvent_Type GetType() OVERRIDE;
  78   virtual PP_TimeTicks GetTimeStamp() OVERRIDE;
  79   virtual uint32_t GetModifiers() OVERRIDE;
  80   virtual PP_InputEvent_MouseButton GetMouseButton() OVERRIDE;
  81   virtual PP_Point GetMousePosition() OVERRIDE;
  82   virtual int32_t GetMouseClickCount() OVERRIDE;
  83   virtual PP_Point GetMouseMovement() OVERRIDE;
  84   virtual PP_FloatPoint GetWheelDelta() OVERRIDE;
  85   virtual PP_FloatPoint GetWheelTicks() OVERRIDE;
  86   virtual PP_Bool GetWheelScrollByPage() OVERRIDE;
  87   virtual uint32_t GetKeyCode() OVERRIDE;
  88   virtual PP_Var GetCharacterText() OVERRIDE;
  89   virtual PP_Bool SetUsbKeyCode(uint32_t usb_key_code) OVERRIDE;
  90   virtual uint32_t GetUsbKeyCode() 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
 104   // Implementations for event creation.
 105   static PP_Resource CreateIMEInputEvent(ResourceObjectType type,
 106                                          PP_Instance instance,
 107                                          PP_InputEvent_Type event_type,
 108                                          PP_TimeTicks time_stamp,
 109                                          struct PP_Var text,
 110                                          uint32_t segment_number,
 111                                          const uint32_t* segment_offsets,
 112                                          int32_t target_segment,
 113                                          uint32_t selection_start,
 114                                          uint32_t selection_end);
 115   static PP_Resource CreateKeyboardInputEvent(ResourceObjectType type,
 116                                               PP_Instance instance,
 117                                               PP_InputEvent_Type event_type,
 118                                               PP_TimeTicks time_stamp,
 119                                               uint32_t modifiers,
 120                                               uint32_t key_code,
 121                                               struct PP_Var character_text);
 122   static PP_Resource CreateMouseInputEvent(
 123       ResourceObjectType type,
 124       PP_Instance instance,
 125       PP_InputEvent_Type event_type,
 126       PP_TimeTicks time_stamp,
 127       uint32_t modifiers,
 128       PP_InputEvent_MouseButton mouse_button,
 129       const PP_Point* mouse_position,
 130       int32_t click_count,
 131       const PP_Point* mouse_movement);
 132   static PP_Resource CreateWheelInputEvent(ResourceObjectType type,
 133                                            PP_Instance instance,
 134                                            PP_TimeTicks time_stamp,
 135                                            uint32_t modifiers,
 136                                            const PP_FloatPoint* wheel_delta,
 137                                            const PP_FloatPoint* wheel_ticks,
 138                                            PP_Bool scroll_by_page);
 139   static PP_Resource CreateTouchInputEvent(ResourceObjectType type,
 140                                            PP_Instance instance,
 141                                            PP_InputEvent_Type event_type,
 142                                            PP_TimeTicks time_stamp,
 143                                            uint32_t modifiers);
 144
 145  private:
 146   InputEventData data_;
 147
 148   DISALLOW_IMPLICIT_CONSTRUCTORS(PPB_InputEvent_Shared);
 149 };
 150
 151 }  // namespace ppapi
 152
 153 #endif  // PPAPI_SHARED_IMPL_PPB_INPUT_EVENT_SHARED_H_