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- // Copyright 2021 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 "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 "base/feature_list.h"
- #include "base/logging.h"
- #include "build/chromeos_buildflags.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"
- #if BUILDFLAG(IS_CHROMEOS_ASH)
- #include "ash/constants/ash_features.h"
- #endif
- namespace exo {
- namespace wayland {
- namespace {
- class WaylandTouchpadHapticsDelegate {
- public:
- explicit WaylandTouchpadHapticsDelegate(wl_resource* resource)
- : resource_{resource} {}
- ~WaylandTouchpadHapticsDelegate() = default;
- void UpdateTouchpadHapticsState() {
- #if BUILDFLAG(IS_CHROMEOS_ASH)
- if (!base::FeatureList::IsEnabled(
- chromeos::features::kExoHapticFeedbackSupport))
- return;
- #endif
- 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:
- wl_resource* const 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 BUILDFLAG(IS_CHROMEOS_ASH)
- if (!base::FeatureList::IsEnabled(
- chromeos::features::kExoHapticFeedbackSupport))
- return;
- #endif
- 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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