src/ppapi/shared_impl/ppb_input_event_shared.cc

   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 #include "ppapi/shared_impl/ppb_input_event_shared.h"
   6
   7 #include "ppapi/shared_impl/var.h"
   8
   9 using ppapi::thunk::PPB_InputEvent_API;
  10
  11 namespace ppapi {
  12
  13 InputEventData::InputEventData()
  14     : is_filtered(false),
  15       event_type(PP_INPUTEVENT_TYPE_UNDEFINED),
  16       event_time_stamp(0.0),
  17       event_modifiers(0),
  18       mouse_button(PP_INPUTEVENT_MOUSEBUTTON_NONE),
  19       mouse_position(PP_MakePoint(0, 0)),
  20       mouse_click_count(0),
  21       mouse_movement(PP_MakePoint(0, 0)),
  22       wheel_delta(PP_MakeFloatPoint(0.0f, 0.0f)),
  23       wheel_ticks(PP_MakeFloatPoint(0.0f, 0.0f)),
  24       wheel_scroll_by_page(false),
  25       key_code(0),
  26       usb_key_code(0),
  27       code(),
  28       character_text(),
  29       composition_target_segment(-1),
  30       composition_selection_start(0),
  31       composition_selection_end(0),
  32       touches(),
  33       changed_touches(),
  34       target_touches() {
  35 }
  36
  37 InputEventData::~InputEventData() {
  38 }
  39
  40 PPB_InputEvent_Shared::PPB_InputEvent_Shared(ResourceObjectType type,
  41                                              PP_Instance instance,
  42                                              const InputEventData& data)
  43     : Resource(type, instance),
  44       data_(data) {
  45 }
  46
  47 PPB_InputEvent_API* PPB_InputEvent_Shared::AsPPB_InputEvent_API() {
  48   return this;
  49 }
  50
  51 const InputEventData& PPB_InputEvent_Shared::GetInputEventData() const {
  52   return data_;
  53 }
  54
  55 PP_InputEvent_Type PPB_InputEvent_Shared::GetType() {
  56   return data_.event_type;
  57 }
  58
  59 PP_TimeTicks PPB_InputEvent_Shared::GetTimeStamp() {
  60   return data_.event_time_stamp;
  61 }
  62
  63 uint32_t PPB_InputEvent_Shared::GetModifiers() {
  64   return data_.event_modifiers;
  65 }
  66
  67 PP_InputEvent_MouseButton PPB_InputEvent_Shared::GetMouseButton() {
  68   return data_.mouse_button;
  69 }
  70
  71 PP_Point PPB_InputEvent_Shared::GetMousePosition() {
  72   return data_.mouse_position;
  73 }
  74
  75 int32_t PPB_InputEvent_Shared::GetMouseClickCount() {
  76   return data_.mouse_click_count;
  77 }
  78
  79 PP_Point PPB_InputEvent_Shared::GetMouseMovement() {
  80   return data_.mouse_movement;
  81 }
  82
  83 PP_FloatPoint PPB_InputEvent_Shared::GetWheelDelta() {
  84   return data_.wheel_delta;
  85 }
  86
  87 PP_FloatPoint PPB_InputEvent_Shared::GetWheelTicks() {
  88   return data_.wheel_ticks;
  89 }
  90
  91 PP_Bool PPB_InputEvent_Shared::GetWheelScrollByPage() {
  92   return PP_FromBool(data_.wheel_scroll_by_page);
  93 }
  94
  95 uint32_t PPB_InputEvent_Shared::GetKeyCode() {
  96   return data_.key_code;
  97 }
  98
  99 PP_Var PPB_InputEvent_Shared::GetCharacterText() {
 100   return StringVar::StringToPPVar(data_.character_text);
 101 }
 102
 103 PP_Bool PPB_InputEvent_Shared::SetUsbKeyCode(uint32_t usb_key_code) {
 104   data_.usb_key_code = usb_key_code;
 105   return PP_TRUE;
 106 }
 107
 108 uint32_t PPB_InputEvent_Shared::GetUsbKeyCode() {
 109   return data_.usb_key_code;
 110 }
 111
 112 PP_Var PPB_InputEvent_Shared::GetCode() {
 113   return StringVar::StringToPPVar(data_.code);
 114 }
 115
 116 uint32_t PPB_InputEvent_Shared::GetIMESegmentNumber() {
 117   if (data_.composition_segment_offsets.empty())
 118     return 0;
 119   return static_cast<uint32_t>(data_.composition_segment_offsets.size() - 1);
 120 }
 121
 122 uint32_t PPB_InputEvent_Shared::GetIMESegmentOffset(uint32_t index) {
 123   if (index >= data_.composition_segment_offsets.size())
 124     return 0;
 125   return data_.composition_segment_offsets[index];
 126 }
 127
 128 int32_t PPB_InputEvent_Shared::GetIMETargetSegment() {
 129   return data_.composition_target_segment;
 130 }
 131
 132 void PPB_InputEvent_Shared::GetIMESelection(uint32_t* start, uint32_t* end) {
 133   if (start)
 134     *start = data_.composition_selection_start;
 135   if (end)
 136     *end = data_.composition_selection_end;
 137 }
 138
 139 void PPB_InputEvent_Shared::AddTouchPoint(PP_TouchListType list,
 140                                           const PP_TouchPoint& point) {
 141   switch (list) {
 142     case PP_TOUCHLIST_TYPE_TOUCHES:
 143       data_.touches.push_back(point);
 144       break;
 145     case PP_TOUCHLIST_TYPE_CHANGEDTOUCHES:
 146       data_.changed_touches.push_back(point);
 147       break;
 148     case PP_TOUCHLIST_TYPE_TARGETTOUCHES:
 149       data_.target_touches.push_back(point);
 150       break;
 151     default:
 152       break;
 153   }
 154 }
 155
 156 uint32_t PPB_InputEvent_Shared::GetTouchCount(PP_TouchListType list) {
 157   switch (list) {
 158     case PP_TOUCHLIST_TYPE_TOUCHES:
 159       return static_cast<uint32_t>(data_.touches.size());
 160     case PP_TOUCHLIST_TYPE_CHANGEDTOUCHES:
 161       return static_cast<uint32_t>(data_.changed_touches.size());
 162     case PP_TOUCHLIST_TYPE_TARGETTOUCHES:
 163       return static_cast<uint32_t>(data_.target_touches.size());
 164   }
 165
 166   return 0;
 167 }
 168
 169 PP_TouchPoint PPB_InputEvent_Shared::GetTouchByIndex(PP_TouchListType list,
 170                                                      uint32_t index) {
 171   std::vector<PP_TouchPoint>* points;
 172   switch (list) {
 173     case PP_TOUCHLIST_TYPE_TOUCHES:
 174       points = &data_.touches;
 175       break;
 176     case PP_TOUCHLIST_TYPE_CHANGEDTOUCHES:
 177       points = &data_.changed_touches;
 178       break;
 179     case PP_TOUCHLIST_TYPE_TARGETTOUCHES:
 180       points = &data_.target_touches;
 181       break;
 182     default:
 183       return PP_MakeTouchPoint();
 184   }
 185   if (index >= points->size()) {
 186     return PP_MakeTouchPoint();
 187   }
 188   return points->at(index);
 189 }
 190
 191 PP_TouchPoint PPB_InputEvent_Shared::GetTouchById(PP_TouchListType list,
 192                                                   uint32_t id) {
 193   const std::vector<PP_TouchPoint>* points;
 194   switch (list) {
 195     case PP_TOUCHLIST_TYPE_TOUCHES:
 196       points = &data_.touches;
 197       break;
 198     case PP_TOUCHLIST_TYPE_CHANGEDTOUCHES:
 199       points = &data_.changed_touches;
 200       break;
 201     case PP_TOUCHLIST_TYPE_TARGETTOUCHES:
 202       points = &data_.target_touches;
 203       break;
 204     default:
 205       return PP_MakeTouchPoint();
 206   }
 207   for (size_t i = 0; i < points->size(); i++) {
 208     if (points->at(i).id == id)
 209       return points->at(i);
 210   }
 211   return PP_MakeTouchPoint();
 212 }
 213
 214 //static
 215 PP_Resource PPB_InputEvent_Shared::CreateIMEInputEvent(
 216     ResourceObjectType type,
 217     PP_Instance instance,
 218     PP_InputEvent_Type event_type,
 219     PP_TimeTicks time_stamp,
 220     struct PP_Var text,
 221     uint32_t segment_number,
 222     const uint32_t* segment_offsets,
 223     int32_t target_segment,
 224     uint32_t selection_start,
 225     uint32_t selection_end) {
 226   if (event_type != PP_INPUTEVENT_TYPE_IME_COMPOSITION_START &&
 227       event_type != PP_INPUTEVENT_TYPE_IME_COMPOSITION_UPDATE &&
 228       event_type != PP_INPUTEVENT_TYPE_IME_COMPOSITION_END &&
 229       event_type != PP_INPUTEVENT_TYPE_IME_TEXT)
 230     return 0;
 231
 232   InputEventData data;
 233   data.event_type = event_type;
 234   data.event_time_stamp = time_stamp;
 235   if (text.type == PP_VARTYPE_STRING) {
 236     StringVar* text_str = StringVar::FromPPVar(text);
 237     if (!text_str)
 238       return 0;
 239     data.character_text = text_str->value();
 240   }
 241   data.composition_target_segment = target_segment;
 242   if (segment_number != 0) {
 243     data.composition_segment_offsets.assign(
 244         &segment_offsets[0], &segment_offsets[segment_number + 1]);
 245   }
 246   data.composition_selection_start = selection_start;
 247   data.composition_selection_end = selection_end;
 248
 249   return (new PPB_InputEvent_Shared(type, instance, data))->GetReference();
 250 }
 251
 252 //static
 253 PP_Resource PPB_InputEvent_Shared::CreateKeyboardInputEvent(
 254     ResourceObjectType type,
 255     PP_Instance instance,
 256     PP_InputEvent_Type event_type,
 257     PP_TimeTicks time_stamp,
 258     uint32_t modifiers,
 259     uint32_t key_code,
 260     struct PP_Var character_text) {
 261   if (event_type != PP_INPUTEVENT_TYPE_RAWKEYDOWN &&
 262       event_type != PP_INPUTEVENT_TYPE_KEYDOWN &&
 263       event_type != PP_INPUTEVENT_TYPE_KEYUP &&
 264       event_type != PP_INPUTEVENT_TYPE_CHAR)
 265     return 0;
 266
 267   InputEventData data;
 268   data.event_type = event_type;
 269   data.event_time_stamp = time_stamp;
 270   data.event_modifiers = modifiers;
 271   data.key_code = key_code;
 272   if (character_text.type == PP_VARTYPE_STRING) {
 273     StringVar* text_str = StringVar::FromPPVar(character_text);
 274     if (!text_str)
 275       return 0;
 276     data.character_text = text_str->value();
 277   }
 278
 279   return (new PPB_InputEvent_Shared(type, instance, data))->GetReference();
 280 }
 281
 282 //static
 283 PP_Resource PPB_InputEvent_Shared::CreateMouseInputEvent(
 284     ResourceObjectType type,
 285     PP_Instance instance,
 286     PP_InputEvent_Type event_type,
 287     PP_TimeTicks time_stamp,
 288     uint32_t modifiers,
 289     PP_InputEvent_MouseButton mouse_button,
 290     const PP_Point* mouse_position,
 291     int32_t click_count,
 292     const PP_Point* mouse_movement) {
 293   if (event_type != PP_INPUTEVENT_TYPE_MOUSEDOWN &&
 294       event_type != PP_INPUTEVENT_TYPE_MOUSEUP &&
 295       event_type != PP_INPUTEVENT_TYPE_MOUSEMOVE &&
 296       event_type != PP_INPUTEVENT_TYPE_MOUSEENTER &&
 297       event_type != PP_INPUTEVENT_TYPE_MOUSELEAVE)
 298     return 0;
 299
 300   InputEventData data;
 301   data.event_type = event_type;
 302   data.event_time_stamp = time_stamp;
 303   data.event_modifiers = modifiers;
 304   data.mouse_button = mouse_button;
 305   data.mouse_position = *mouse_position;
 306   data.mouse_click_count = click_count;
 307   data.mouse_movement = *mouse_movement;
 308
 309   return (new PPB_InputEvent_Shared(type, instance, data))->GetReference();
 310 }
 311
 312 //static
 313 PP_Resource PPB_InputEvent_Shared::CreateWheelInputEvent(
 314     ResourceObjectType type,
 315     PP_Instance instance,
 316     PP_TimeTicks time_stamp,
 317     uint32_t modifiers,
 318     const PP_FloatPoint* wheel_delta,
 319     const PP_FloatPoint* wheel_ticks,
 320     PP_Bool scroll_by_page) {
 321   InputEventData data;
 322   data.event_type = PP_INPUTEVENT_TYPE_WHEEL;
 323   data.event_time_stamp = time_stamp;
 324   data.event_modifiers = modifiers;
 325   data.wheel_delta = *wheel_delta;
 326   data.wheel_ticks = *wheel_ticks;
 327   data.wheel_scroll_by_page = PP_ToBool(scroll_by_page);
 328
 329   return (new PPB_InputEvent_Shared(type, instance, data))->GetReference();
 330 }
 331
 332 // static
 333 PP_Resource PPB_InputEvent_Shared::CreateTouchInputEvent(
 334     ResourceObjectType type,
 335     PP_Instance instance,
 336     PP_InputEvent_Type event_type,
 337     PP_TimeTicks time_stamp,
 338     uint32_t modifiers) {
 339   if (event_type != PP_INPUTEVENT_TYPE_TOUCHSTART &&
 340       event_type != PP_INPUTEVENT_TYPE_TOUCHMOVE &&
 341       event_type != PP_INPUTEVENT_TYPE_TOUCHEND &&
 342       event_type != PP_INPUTEVENT_TYPE_TOUCHCANCEL)
 343     return 0;
 344
 345   InputEventData data;
 346   data.event_type = event_type;
 347   data.event_time_stamp = time_stamp;
 348   data.event_modifiers = modifiers;
 349   return (new PPB_InputEvent_Shared(type, instance, data))->GetReference();
 350 }
 351
 352 }  // namespace ppapi