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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/exo/wayland/zcr_touchpad_haptics.h"
#include <touchpad-haptics-unstable-v1-server-protocol.h>
#include <wayland-server-core.h>
#include <wayland-server-protocol-core.h>
#include "ash/constants/ash_features.h"
#include "base/feature_list.h"
#include "base/logging.h"
#include "base/memory/raw_ptr.h"
#include "components/exo/wayland/server_util.h"
#include "third_party/abseil-cpp/absl/types/optional.h"
#include "ui/events/devices/haptic_touchpad_effects.h"
#include "ui/ozone/public/input_controller.h"
#include "ui/ozone/public/ozone_platform.h"
namespace exo {
namespace wayland {
namespace {
class WaylandTouchpadHapticsDelegate {
public:
explicit WaylandTouchpadHapticsDelegate(wl_resource* resource)
: resource_{resource} {}
~WaylandTouchpadHapticsDelegate() = default;
void UpdateTouchpadHapticsState() {
if (!base::FeatureList::IsEnabled(ash::features::kExoHapticFeedbackSupport))
return;
ui::InputController* controller =
ui::OzonePlatform::GetInstance()->GetInputController();
if (!controller) {
LOG(ERROR) << "InputController is not available.";
return;
}
if (last_activation_state_ &&
*last_activation_state_ == controller->HasHapticTouchpad()) {
// No need to send the update.
return;
}
last_activation_state_ = controller->HasHapticTouchpad();
if (*last_activation_state_)
zcr_touchpad_haptics_v1_send_activated(resource_);
else
zcr_touchpad_haptics_v1_send_deactivated(resource_);
}
void Play(uint32_t effect, int32_t strength) {
ui::InputController* controller =
ui::OzonePlatform::GetInstance()->GetInputController();
if (!controller) {
LOG(ERROR) << "InputController is not available.";
return;
}
controller->PlayHapticTouchpadEffect(
static_cast<ui::HapticTouchpadEffect>(effect),
static_cast<ui::HapticTouchpadEffectStrength>(strength));
}
private:
const raw_ptr<wl_resource, ExperimentalAsh> resource_;
absl::optional<bool> last_activation_state_;
};
void touchpad_haptics_destroy(wl_client* client, wl_resource* resource) {
wl_resource_destroy(resource);
}
void touchpad_haptics_play(wl_client* client,
wl_resource* resource,
uint32_t effect,
int32_t strength) {
if (!base::FeatureList::IsEnabled(ash::features::kExoHapticFeedbackSupport))
return;
GetUserDataAs<WaylandTouchpadHapticsDelegate>(resource)->Play(effect,
strength);
}
const struct zcr_touchpad_haptics_v1_interface touchpad_haptics_implementation =
{
touchpad_haptics_destroy,
touchpad_haptics_play,
};
} // namespace
void bind_touchpad_haptics(wl_client* client,
void* data,
uint32_t version,
uint32_t id) {
wl_resource* resource = wl_resource_create(
client, &zcr_touchpad_haptics_v1_interface, version, id);
SetImplementation(resource, &touchpad_haptics_implementation,
std::make_unique<WaylandTouchpadHapticsDelegate>(resource));
GetUserDataAs<WaylandTouchpadHapticsDelegate>(resource)
->UpdateTouchpadHapticsState();
}
} // namespace wayland
} // namespace exo
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