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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/events/gesture_detection/gesture_event_data_packet.h"
#include "base/check_op.h"
#include "base/notreached.h"
#include "ui/events/velocity_tracker/motion_event.h"
namespace ui {
namespace {
GestureEventDataPacket::GestureSource ToGestureSource(
const ui::MotionEvent& event) {
switch (event.GetAction()) {
case ui::MotionEvent::Action::DOWN:
return GestureEventDataPacket::TOUCH_SEQUENCE_START;
case ui::MotionEvent::Action::UP:
return GestureEventDataPacket::TOUCH_SEQUENCE_END;
case ui::MotionEvent::Action::MOVE:
return GestureEventDataPacket::TOUCH_MOVE;
case ui::MotionEvent::Action::CANCEL:
return GestureEventDataPacket::TOUCH_SEQUENCE_CANCEL;
case ui::MotionEvent::Action::POINTER_DOWN:
return GestureEventDataPacket::TOUCH_START;
case ui::MotionEvent::Action::POINTER_UP:
return GestureEventDataPacket::TOUCH_END;
case ui::MotionEvent::Action::NONE:
case ui::MotionEvent::Action::HOVER_ENTER:
case ui::MotionEvent::Action::HOVER_EXIT:
case ui::MotionEvent::Action::HOVER_MOVE:
case ui::MotionEvent::Action::BUTTON_PRESS:
case ui::MotionEvent::Action::BUTTON_RELEASE:
NOTREACHED();
}
NOTREACHED();
}
} // namespace
GestureEventDataPacket::GestureEventDataPacket()
: gesture_source_(UNDEFINED),
ack_state_(AckState::PENDING),
unique_touch_event_id_(0) {
}
GestureEventDataPacket::GestureEventDataPacket(
base::TimeTicks timestamp,
GestureSource source,
const gfx::PointF& touch_location,
const gfx::PointF& raw_touch_location,
uint32_t unique_touch_event_id)
: timestamp_(timestamp),
touch_location_(touch_location),
raw_touch_location_(raw_touch_location),
gesture_source_(source),
ack_state_(AckState::PENDING),
unique_touch_event_id_(unique_touch_event_id) {
DCHECK_NE(gesture_source_, UNDEFINED);
}
GestureEventDataPacket::GestureEventDataPacket(
const GestureEventDataPacket& other)
: timestamp_(other.timestamp_),
gestures_(other.gestures_),
touch_location_(other.touch_location_),
raw_touch_location_(other.raw_touch_location_),
gesture_source_(other.gesture_source_),
ack_state_(other.ack_state_),
unique_touch_event_id_(other.unique_touch_event_id_) {}
GestureEventDataPacket::~GestureEventDataPacket() {
}
GestureEventDataPacket& GestureEventDataPacket::operator=(
const GestureEventDataPacket& other) {
timestamp_ = other.timestamp_;
gesture_source_ = other.gesture_source_;
touch_location_ = other.touch_location_;
raw_touch_location_ = other.raw_touch_location_;
gestures_ = other.gestures_;
ack_state_ = other.ack_state_;
unique_touch_event_id_ = other.unique_touch_event_id_;
return *this;
}
void GestureEventDataPacket::Push(const GestureEventData& original_gesture) {
DCHECK_NE(EventType::kUnknown, original_gesture.type());
GestureEventData gesture(original_gesture);
gesture.unique_touch_event_id = unique_touch_event_id_;
gestures_.push_back(gesture);
}
GestureEventDataPacket GestureEventDataPacket::FromTouch(
const ui::MotionEvent& touch) {
return GestureEventDataPacket(touch.GetEventTime(), ToGestureSource(touch),
gfx::PointF(touch.GetX(), touch.GetY()),
gfx::PointF(touch.GetRawX(), touch.GetRawY()),
touch.GetUniqueEventId());
}
GestureEventDataPacket GestureEventDataPacket::FromTouchTimeout(
const GestureEventData& gesture) {
GestureEventDataPacket packet(gesture.time, TOUCH_TIMEOUT,
gfx::PointF(gesture.x, gesture.y),
gfx::PointF(gesture.raw_x, gesture.raw_y),
gesture.unique_touch_event_id);
packet.Push(gesture);
return packet;
}
void GestureEventDataPacket::Ack(bool event_consumed,
bool is_source_touch_event_set_blocking) {
DCHECK_EQ(static_cast<int>(ack_state_), static_cast<int>(AckState::PENDING));
ack_state_ = event_consumed ? AckState::CONSUMED : AckState::UNCONSUMED;
for (auto& gesture : gestures_) {
gesture.details.set_is_source_touch_event_set_blocking(
is_source_touch_event_set_blocking);
}
}
void GestureEventDataPacket::AddEventLatencyMetadataToGestures(
const EventLatencyMetadata& event_latency_metadata,
const base::RepeatingCallback<bool(const ui::GestureEventData&)>& filter) {
for (auto& gesture : gestures_) {
if (filter.Run(gesture)) {
gesture.details.GetModifiableEventLatencyMetadata() =
event_latency_metadata;
}
}
}
} // namespace ui
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