ppb_input_event_shared.h revision 5d1f7b1de12d16ceb2c938c56701a3e8bfa558f7 
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
17namespace 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
22struct 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
63class 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  virtual PPB_InputEvent_API* AsPPB_InputEvent_API() OVERRIDE;
73
74  // PPB_InputEvent_API implementation.
75  virtual const InputEventData& GetInputEventData() const OVERRIDE;
76  virtual PP_InputEvent_Type GetType() OVERRIDE;
77  virtual PP_TimeTicks GetTimeStamp() OVERRIDE;
78  virtual uint32_t GetModifiers() OVERRIDE;
79  virtual PP_InputEvent_MouseButton GetMouseButton() OVERRIDE;
80  virtual PP_Point GetMousePosition() OVERRIDE;
81  virtual int32_t GetMouseClickCount() OVERRIDE;
82  virtual PP_Point GetMouseMovement() OVERRIDE;
83  virtual PP_FloatPoint GetWheelDelta() OVERRIDE;
84  virtual PP_FloatPoint GetWheelTicks() OVERRIDE;
85  virtual PP_Bool GetWheelScrollByPage() OVERRIDE;
86  virtual uint32_t GetKeyCode() OVERRIDE;
87  virtual PP_Var GetCharacterText() OVERRIDE;
88  virtual PP_Var GetCode() OVERRIDE;
89  virtual uint32_t GetIMESegmentNumber() OVERRIDE;
90  virtual uint32_t GetIMESegmentOffset(uint32_t index) OVERRIDE;
91  virtual int32_t GetIMETargetSegment() OVERRIDE;
92  virtual void GetIMESelection(uint32_t* start, uint32_t* end) OVERRIDE;
93  virtual void AddTouchPoint(PP_TouchListType list,
94                             const PP_TouchPoint& point) OVERRIDE;
95  virtual uint32_t GetTouchCount(PP_TouchListType list) OVERRIDE;
96  virtual PP_TouchPoint GetTouchByIndex(PP_TouchListType list,
97                                        uint32_t index) OVERRIDE;
98  virtual PP_TouchPoint GetTouchById(PP_TouchListType list,
99                                     uint32_t id) OVERRIDE;
100
101  // Implementations for event creation.
102  static PP_Resource CreateIMEInputEvent(ResourceObjectType type,
103                                         PP_Instance instance,
104                                         PP_InputEvent_Type event_type,
105                                         PP_TimeTicks time_stamp,
106                                         struct PP_Var text,
107                                         uint32_t segment_number,
108                                         const uint32_t* segment_offsets,
109                                         int32_t target_segment,
110                                         uint32_t selection_start,
111                                         uint32_t selection_end);
112  static PP_Resource CreateKeyboardInputEvent(ResourceObjectType type,
113                                              PP_Instance instance,
114                                              PP_InputEvent_Type event_type,
115                                              PP_TimeTicks time_stamp,
116                                              uint32_t modifiers,
117                                              uint32_t key_code,
118                                              struct PP_Var character_text,
119                                              struct PP_Var code);
120  static PP_Resource CreateMouseInputEvent(
121      ResourceObjectType type,
122      PP_Instance instance,
123      PP_InputEvent_Type event_type,
124      PP_TimeTicks time_stamp,
125      uint32_t modifiers,
126      PP_InputEvent_MouseButton mouse_button,
127      const PP_Point* mouse_position,
128      int32_t click_count,
129      const PP_Point* mouse_movement);
130  static PP_Resource CreateWheelInputEvent(ResourceObjectType type,
131                                           PP_Instance instance,
132                                           PP_TimeTicks time_stamp,
133                                           uint32_t modifiers,
134                                           const PP_FloatPoint* wheel_delta,
135                                           const PP_FloatPoint* wheel_ticks,
136                                           PP_Bool scroll_by_page);
137  static PP_Resource CreateTouchInputEvent(ResourceObjectType type,
138                                           PP_Instance instance,
139                                           PP_InputEvent_Type event_type,
140                                           PP_TimeTicks time_stamp,
141                                           uint32_t modifiers);
142
143 private:
144  InputEventData data_;
145
146  DISALLOW_IMPLICIT_CONSTRUCTORS(PPB_InputEvent_Shared);
147};
148
149}  // namespace ppapi
150
151#endif  // PPAPI_SHARED_IMPL_PPB_INPUT_EVENT_SHARED_H_
152