root/ppapi/shared_impl/ppb_input_event_shared.cc

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DEFINITIONS

This source file includes following definitions.
  1. target_touches
  2. data_
  3. AsPPB_InputEvent_API
  4. GetInputEventData
  5. GetType
  6. GetTimeStamp
  7. GetModifiers
  8. GetMouseButton
  9. GetMousePosition
  10. GetMouseClickCount
  11. GetMouseMovement
  12. GetWheelDelta
  13. GetWheelTicks
  14. GetWheelScrollByPage
  15. GetKeyCode
  16. GetCharacterText
  17. GetCode
  18. GetIMESegmentNumber
  19. GetIMESegmentOffset
  20. GetIMETargetSegment
  21. GetIMESelection
  22. AddTouchPoint
  23. GetTouchCount
  24. GetTouchByIndex
  25. GetTouchById
  26. CreateIMEInputEvent
  27. CreateKeyboardInputEvent
  28. CreateMouseInputEvent
  29. CreateWheelInputEvent
  30. CreateTouchInputEvent

// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ppapi/shared_impl/ppb_input_event_shared.h"

#include "ppapi/shared_impl/var.h"

using ppapi::thunk::PPB_InputEvent_API;

namespace ppapi {

InputEventData::InputEventData()
    : is_filtered(false),
      event_type(PP_INPUTEVENT_TYPE_UNDEFINED),
      event_time_stamp(0.0),
      event_modifiers(0),
      mouse_button(PP_INPUTEVENT_MOUSEBUTTON_NONE),
      mouse_position(PP_MakePoint(0, 0)),
      mouse_click_count(0),
      mouse_movement(PP_MakePoint(0, 0)),
      wheel_delta(PP_MakeFloatPoint(0.0f, 0.0f)),
      wheel_ticks(PP_MakeFloatPoint(0.0f, 0.0f)),
      wheel_scroll_by_page(false),
      key_code(0),
      code(),
      character_text(),
      composition_target_segment(-1),
      composition_selection_start(0),
      composition_selection_end(0),
      touches(),
      changed_touches(),
      target_touches() {}

InputEventData::~InputEventData() {}

PPB_InputEvent_Shared::PPB_InputEvent_Shared(ResourceObjectType type,
                                             PP_Instance instance,
                                             const InputEventData& data)
    : Resource(type, instance), data_(data) {}

PPB_InputEvent_API* PPB_InputEvent_Shared::AsPPB_InputEvent_API() {
  return this;
}

const InputEventData& PPB_InputEvent_Shared::GetInputEventData() const {
  return data_;
}

PP_InputEvent_Type PPB_InputEvent_Shared::GetType() { return data_.event_type; }

PP_TimeTicks PPB_InputEvent_Shared::GetTimeStamp() {
  return data_.event_time_stamp;
}

uint32_t PPB_InputEvent_Shared::GetModifiers() { return data_.event_modifiers; }

PP_InputEvent_MouseButton PPB_InputEvent_Shared::GetMouseButton() {
  return data_.mouse_button;
}

PP_Point PPB_InputEvent_Shared::GetMousePosition() {
  return data_.mouse_position;
}

int32_t PPB_InputEvent_Shared::GetMouseClickCount() {
  return data_.mouse_click_count;
}

PP_Point PPB_InputEvent_Shared::GetMouseMovement() {
  return data_.mouse_movement;
}

PP_FloatPoint PPB_InputEvent_Shared::GetWheelDelta() {
  return data_.wheel_delta;
}

PP_FloatPoint PPB_InputEvent_Shared::GetWheelTicks() {
  return data_.wheel_ticks;
}

PP_Bool PPB_InputEvent_Shared::GetWheelScrollByPage() {
  return PP_FromBool(data_.wheel_scroll_by_page);
}

uint32_t PPB_InputEvent_Shared::GetKeyCode() { return data_.key_code; }

PP_Var PPB_InputEvent_Shared::GetCharacterText() {
  return StringVar::StringToPPVar(data_.character_text);
}

PP_Var PPB_InputEvent_Shared::GetCode() {
  return StringVar::StringToPPVar(data_.code);
}

uint32_t PPB_InputEvent_Shared::GetIMESegmentNumber() {
  if (data_.composition_segment_offsets.empty())
    return 0;
  return static_cast<uint32_t>(data_.composition_segment_offsets.size() - 1);
}

uint32_t PPB_InputEvent_Shared::GetIMESegmentOffset(uint32_t index) {
  if (index >= data_.composition_segment_offsets.size())
    return 0;
  return data_.composition_segment_offsets[index];
}

int32_t PPB_InputEvent_Shared::GetIMETargetSegment() {
  return data_.composition_target_segment;
}

void PPB_InputEvent_Shared::GetIMESelection(uint32_t* start, uint32_t* end) {
  if (start)
    *start = data_.composition_selection_start;
  if (end)
    *end = data_.composition_selection_end;
}

void PPB_InputEvent_Shared::AddTouchPoint(PP_TouchListType list,
                                          const PP_TouchPoint& point) {
  switch (list) {
    case PP_TOUCHLIST_TYPE_TOUCHES:
      data_.touches.push_back(point);
      break;
    case PP_TOUCHLIST_TYPE_CHANGEDTOUCHES:
      data_.changed_touches.push_back(point);
      break;
    case PP_TOUCHLIST_TYPE_TARGETTOUCHES:
      data_.target_touches.push_back(point);
      break;
    default:
      break;
  }
}

uint32_t PPB_InputEvent_Shared::GetTouchCount(PP_TouchListType list) {
  switch (list) {
    case PP_TOUCHLIST_TYPE_TOUCHES:
      return static_cast<uint32_t>(data_.touches.size());
    case PP_TOUCHLIST_TYPE_CHANGEDTOUCHES:
      return static_cast<uint32_t>(data_.changed_touches.size());
    case PP_TOUCHLIST_TYPE_TARGETTOUCHES:
      return static_cast<uint32_t>(data_.target_touches.size());
  }

  return 0;
}

PP_TouchPoint PPB_InputEvent_Shared::GetTouchByIndex(PP_TouchListType list,
                                                     uint32_t index) {
  std::vector<PP_TouchPoint>* points;
  switch (list) {
    case PP_TOUCHLIST_TYPE_TOUCHES:
      points = &data_.touches;
      break;
    case PP_TOUCHLIST_TYPE_CHANGEDTOUCHES:
      points = &data_.changed_touches;
      break;
    case PP_TOUCHLIST_TYPE_TARGETTOUCHES:
      points = &data_.target_touches;
      break;
    default:
      return PP_MakeTouchPoint();
  }
  if (index >= points->size()) {
    return PP_MakeTouchPoint();
  }
  return points->at(index);
}

PP_TouchPoint PPB_InputEvent_Shared::GetTouchById(PP_TouchListType list,
                                                  uint32_t id) {
  const std::vector<PP_TouchPoint>* points;
  switch (list) {
    case PP_TOUCHLIST_TYPE_TOUCHES:
      points = &data_.touches;
      break;
    case PP_TOUCHLIST_TYPE_CHANGEDTOUCHES:
      points = &data_.changed_touches;
      break;
    case PP_TOUCHLIST_TYPE_TARGETTOUCHES:
      points = &data_.target_touches;
      break;
    default:
      return PP_MakeTouchPoint();
  }
  for (size_t i = 0; i < points->size(); i++) {
    if (points->at(i).id == id)
      return points->at(i);
  }
  return PP_MakeTouchPoint();
}

// static
PP_Resource PPB_InputEvent_Shared::CreateIMEInputEvent(
    ResourceObjectType type,
    PP_Instance instance,
    PP_InputEvent_Type event_type,
    PP_TimeTicks time_stamp,
    struct PP_Var text,
    uint32_t segment_number,
    const uint32_t* segment_offsets,
    int32_t target_segment,
    uint32_t selection_start,
    uint32_t selection_end) {
  if (event_type != PP_INPUTEVENT_TYPE_IME_COMPOSITION_START &&
      event_type != PP_INPUTEVENT_TYPE_IME_COMPOSITION_UPDATE &&
      event_type != PP_INPUTEVENT_TYPE_IME_COMPOSITION_END &&
      event_type != PP_INPUTEVENT_TYPE_IME_TEXT)
    return 0;

  InputEventData data;
  data.event_type = event_type;
  data.event_time_stamp = time_stamp;
  if (text.type == PP_VARTYPE_STRING) {
    StringVar* text_str = StringVar::FromPPVar(text);
    if (!text_str)
      return 0;
    data.character_text = text_str->value();
  }
  data.composition_target_segment = target_segment;
  if (segment_number != 0) {
    data.composition_segment_offsets.assign(
        &segment_offsets[0], &segment_offsets[segment_number + 1]);
  }
  data.composition_selection_start = selection_start;
  data.composition_selection_end = selection_end;

  return (new PPB_InputEvent_Shared(type, instance, data))->GetReference();
}

// static
PP_Resource PPB_InputEvent_Shared::CreateKeyboardInputEvent(
    ResourceObjectType type,
    PP_Instance instance,
    PP_InputEvent_Type event_type,
    PP_TimeTicks time_stamp,
    uint32_t modifiers,
    uint32_t key_code,
    struct PP_Var character_text,
    struct PP_Var code) {
  if (event_type != PP_INPUTEVENT_TYPE_RAWKEYDOWN &&
      event_type != PP_INPUTEVENT_TYPE_KEYDOWN &&
      event_type != PP_INPUTEVENT_TYPE_KEYUP &&
      event_type != PP_INPUTEVENT_TYPE_CHAR)
    return 0;

  InputEventData data;
  data.event_type = event_type;
  data.event_time_stamp = time_stamp;
  data.event_modifiers = modifiers;
  data.key_code = key_code;
  if (character_text.type == PP_VARTYPE_STRING) {
    StringVar* text_str = StringVar::FromPPVar(character_text);
    if (!text_str)
      return 0;
    data.character_text = text_str->value();
  }
  if (code.type == PP_VARTYPE_STRING) {
    StringVar* code_str = StringVar::FromPPVar(code);
    if (!code_str)
      return 0;
    data.code = code_str->value();
  }

  return (new PPB_InputEvent_Shared(type, instance, data))->GetReference();
}

// static
PP_Resource PPB_InputEvent_Shared::CreateMouseInputEvent(
    ResourceObjectType type,
    PP_Instance instance,
    PP_InputEvent_Type event_type,
    PP_TimeTicks time_stamp,
    uint32_t modifiers,
    PP_InputEvent_MouseButton mouse_button,
    const PP_Point* mouse_position,
    int32_t click_count,
    const PP_Point* mouse_movement) {
  if (event_type != PP_INPUTEVENT_TYPE_MOUSEDOWN &&
      event_type != PP_INPUTEVENT_TYPE_MOUSEUP &&
      event_type != PP_INPUTEVENT_TYPE_MOUSEMOVE &&
      event_type != PP_INPUTEVENT_TYPE_MOUSEENTER &&
      event_type != PP_INPUTEVENT_TYPE_MOUSELEAVE)
    return 0;

  InputEventData data;
  data.event_type = event_type;
  data.event_time_stamp = time_stamp;
  data.event_modifiers = modifiers;
  data.mouse_button = mouse_button;
  data.mouse_position = *mouse_position;
  data.mouse_click_count = click_count;
  data.mouse_movement = *mouse_movement;

  return (new PPB_InputEvent_Shared(type, instance, data))->GetReference();
}

// static
PP_Resource PPB_InputEvent_Shared::CreateWheelInputEvent(
    ResourceObjectType type,
    PP_Instance instance,
    PP_TimeTicks time_stamp,
    uint32_t modifiers,
    const PP_FloatPoint* wheel_delta,
    const PP_FloatPoint* wheel_ticks,
    PP_Bool scroll_by_page) {
  InputEventData data;
  data.event_type = PP_INPUTEVENT_TYPE_WHEEL;
  data.event_time_stamp = time_stamp;
  data.event_modifiers = modifiers;
  data.wheel_delta = *wheel_delta;
  data.wheel_ticks = *wheel_ticks;
  data.wheel_scroll_by_page = PP_ToBool(scroll_by_page);

  return (new PPB_InputEvent_Shared(type, instance, data))->GetReference();
}

// static
PP_Resource PPB_InputEvent_Shared::CreateTouchInputEvent(
    ResourceObjectType type,
    PP_Instance instance,
    PP_InputEvent_Type event_type,
    PP_TimeTicks time_stamp,
    uint32_t modifiers) {
  if (event_type != PP_INPUTEVENT_TYPE_TOUCHSTART &&
      event_type != PP_INPUTEVENT_TYPE_TOUCHMOVE &&
      event_type != PP_INPUTEVENT_TYPE_TOUCHEND &&
      event_type != PP_INPUTEVENT_TYPE_TOUCHCANCEL)
    return 0;

  InputEventData data;
  data.event_type = event_type;
  data.event_time_stamp = time_stamp;
  data.event_modifiers = modifiers;
  return (new PPB_InputEvent_Shared(type, instance, data))->GetReference();
}

}  // namespace ppapi

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