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// Copyright 2018 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/ozone/platform/wayland/host/wayland_touch.h"
#include "base/logging.h"
#include "base/notreached.h"
#include "base/time/time.h"
#include "ui/events/types/event_type.h"
#include "ui/gfx/geometry/point_f.h"
#include "ui/ozone/common/features.h"
#include "ui/ozone/platform/wayland/common/wayland_util.h"
#include "ui/ozone/platform/wayland/host/wayland_connection.h"
#include "ui/ozone/platform/wayland/host/wayland_serial_tracker.h"
#include "ui/ozone/platform/wayland/host/wayland_window.h"
namespace ui {
namespace {
// See TODO in //ui/ozone/common/features.cc
wl::EventDispatchPolicy GetEventDispatchPolicy() {
return IsDispatchTouchEventsOnFrameEventEnabled()
? wl::EventDispatchPolicy::kOnFrame
: wl::EventDispatchPolicy::kImmediate;
}
} // namespace
WaylandTouch::WaylandTouch(wl_touch* touch,
WaylandConnection* connection,
Delegate* delegate)
: obj_(touch), connection_(connection), delegate_(delegate) {
static constexpr wl_touch_listener kTouchListener = {
.down = &OnTouchDown,
.up = &OnTouchUp,
.motion = &OnTouchMotion,
.frame = &OnTouchFrame,
.cancel = &OnTouchCancel,
.shape = &OnTouchShape,
.orientation = &OnTouchOrientation,
};
wl_touch_add_listener(obj_.get(), &kTouchListener, this);
}
WaylandTouch::~WaylandTouch() {
delegate_->OnTouchCancelEvent();
}
// static
void WaylandTouch::OnTouchDown(void* data,
wl_touch* touch,
uint32_t serial,
uint32_t time,
struct wl_surface* surface,
int32_t id,
wl_fixed_t x,
wl_fixed_t y) {
if (!surface)
return;
auto* self = static_cast<WaylandTouch*>(data);
DCHECK(self);
self->connection_->serial_tracker().UpdateSerial(wl::SerialType::kTouchPress,
serial);
WaylandWindow* window = wl::RootWindowFromWlSurface(surface);
if (!window) {
return;
}
self->delegate_->OnTouchPressEvent(
window, gfx::PointF(wl_fixed_to_double(x), wl_fixed_to_double(y)),
wl::EventMillisecondsToTimeTicks(time), id, GetEventDispatchPolicy());
}
// static
void WaylandTouch::OnTouchUp(void* data,
wl_touch* touch,
uint32_t serial,
uint32_t time,
int32_t id) {
auto* self = static_cast<WaylandTouch*>(data);
DCHECK(self);
self->delegate_->OnTouchReleaseEvent(wl::EventMillisecondsToTimeTicks(time),
id, GetEventDispatchPolicy(),
/*is_synthesized=*/false);
}
// static
void WaylandTouch::OnTouchMotion(void* data,
wl_touch* touch,
uint32_t time,
int32_t id,
wl_fixed_t x,
wl_fixed_t y) {
auto* self = static_cast<WaylandTouch*>(data);
DCHECK(self);
const WaylandWindow* target = self->delegate_->GetTouchTarget(id);
if (!target) {
LOG(WARNING) << "Touch event fired with wrong id";
return;
}
self->delegate_->OnTouchMotionEvent(
gfx::PointF(wl_fixed_to_double(x), wl_fixed_to_double(y)),
wl::EventMillisecondsToTimeTicks(time), id, GetEventDispatchPolicy(),
/*is_synthesized=*/false);
}
// static
void WaylandTouch::OnTouchShape(void* data,
wl_touch* touch,
int32_t id,
wl_fixed_t major,
wl_fixed_t minor) {
NOTIMPLEMENTED_LOG_ONCE();
}
// static
void WaylandTouch::OnTouchOrientation(void* data,
wl_touch* touch,
int32_t id,
wl_fixed_t orientation) {
NOTIMPLEMENTED_LOG_ONCE();
}
// static
void WaylandTouch::OnTouchCancel(void* data, wl_touch* touch) {
auto* self = static_cast<WaylandTouch*>(data);
DCHECK(self);
self->delegate_->OnTouchCancelEvent();
}
// static
void WaylandTouch::OnTouchFrame(void* data, wl_touch* touch) {
auto* self = static_cast<WaylandTouch*>(data);
DCHECK(self);
self->delegate_->OnTouchFrame();
}
} // namespace ui
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