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// Copyright 2017 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 "third_party/blink/renderer/modules/gamepad/gamepad_haptic_actuator.h"
#include "base/bind_helpers.h"
#include "device/gamepad/public/cpp/gamepad.h"
#include "third_party/blink/public/platform/task_type.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_gamepad_effect_parameters.h"
#include "third_party/blink/renderer/modules/gamepad/gamepad_dispatcher.h"
#include "third_party/blink/renderer/platform/wtf/functional.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
namespace {
using device::mojom::GamepadHapticsResult;
using device::mojom::GamepadHapticEffectType;
const char kGamepadHapticActuatorTypeVibration[] = "vibration";
const char kGamepadHapticActuatorTypeDualRumble[] = "dual-rumble";
const char kGamepadHapticEffectTypeDualRumble[] = "dual-rumble";
const char kGamepadHapticsResultComplete[] = "complete";
const char kGamepadHapticsResultPreempted[] = "preempted";
const char kGamepadHapticsResultInvalidParameter[] = "invalid-parameter";
const char kGamepadHapticsResultNotSupported[] = "not-supported";
GamepadHapticEffectType EffectTypeFromString(const String& type) {
if (type == kGamepadHapticEffectTypeDualRumble)
return GamepadHapticEffectType::GamepadHapticEffectTypeDualRumble;
NOTREACHED();
return GamepadHapticEffectType::GamepadHapticEffectTypeDualRumble;
}
String ResultToString(GamepadHapticsResult result) {
switch (result) {
case GamepadHapticsResult::GamepadHapticsResultComplete:
return kGamepadHapticsResultComplete;
case GamepadHapticsResult::GamepadHapticsResultPreempted:
return kGamepadHapticsResultPreempted;
case GamepadHapticsResult::GamepadHapticsResultInvalidParameter:
return kGamepadHapticsResultInvalidParameter;
case GamepadHapticsResult::GamepadHapticsResultNotSupported:
return kGamepadHapticsResultNotSupported;
default:
NOTREACHED();
}
return kGamepadHapticsResultNotSupported;
}
} // namespace
namespace blink {
GamepadHapticActuator::GamepadHapticActuator(
ExecutionContext& context,
int pad_index,
device::GamepadHapticActuatorType type)
: ExecutionContextClient(&context),
pad_index_(pad_index),
gamepad_dispatcher_(MakeGarbageCollected<GamepadDispatcher>(context)) {
SetType(type);
}
GamepadHapticActuator::~GamepadHapticActuator() = default;
void GamepadHapticActuator::SetType(device::GamepadHapticActuatorType type) {
switch (type) {
case device::GamepadHapticActuatorType::kVibration:
type_ = kGamepadHapticActuatorTypeVibration;
break;
case device::GamepadHapticActuatorType::kDualRumble:
type_ = kGamepadHapticActuatorTypeDualRumble;
break;
default:
NOTREACHED();
}
}
ScriptPromise GamepadHapticActuator::playEffect(
ScriptState* script_state,
const String& type,
const GamepadEffectParameters* params) {
auto* resolver = MakeGarbageCollected<ScriptPromiseResolver>(script_state);
if (params->duration() < 0.0 || params->startDelay() < 0.0 ||
params->strongMagnitude() < 0.0 || params->strongMagnitude() > 1.0 ||
params->weakMagnitude() < 0.0 || params->weakMagnitude() > 1.0) {
ScriptPromise promise = resolver->Promise();
resolver->Resolve(kGamepadHapticsResultInvalidParameter);
return promise;
}
// Limit the total effect duration.
double effect_duration = params->duration() + params->startDelay();
if (effect_duration >
device::GamepadHapticActuator::kMaxEffectDurationMillis) {
ScriptPromise promise = resolver->Promise();
resolver->Resolve(kGamepadHapticsResultInvalidParameter);
return promise;
}
// Avoid resetting vibration for a preempted effect.
should_reset_ = false;
auto callback = WTF::Bind(&GamepadHapticActuator::OnPlayEffectCompleted,
WrapPersistent(this), WrapPersistent(resolver));
gamepad_dispatcher_->PlayVibrationEffectOnce(
pad_index_, EffectTypeFromString(type),
device::mojom::blink::GamepadEffectParameters::New(
params->duration(), params->startDelay(), params->strongMagnitude(),
params->weakMagnitude()),
std::move(callback));
return resolver->Promise();
}
void GamepadHapticActuator::OnPlayEffectCompleted(
ScriptPromiseResolver* resolver,
device::mojom::GamepadHapticsResult result) {
if (result == GamepadHapticsResult::GamepadHapticsResultError) {
resolver->Reject();
return;
} else if (result == GamepadHapticsResult::GamepadHapticsResultComplete) {
should_reset_ = true;
ExecutionContext* context = GetExecutionContext();
if (context) {
// Post a delayed task to stop vibration. The task will be run after all
// callbacks have run for the effect Promise, and may be ignored by
// setting |should_reset_| to false. The intention is to only stop
// vibration if the user did not chain another vibration effect in the
// Promise callback.
context->GetTaskRunner(TaskType::kMiscPlatformAPI)
->PostTask(
FROM_HERE,
WTF::Bind(&GamepadHapticActuator::ResetVibrationIfNotPreempted,
WrapPersistent(this)));
} else {
// The execution context is gone, meaning no new effects can be issued by
// the page. Stop vibration without waiting for Promise callbacks.
ResetVibrationIfNotPreempted();
}
}
resolver->Resolve(ResultToString(result));
}
void GamepadHapticActuator::ResetVibrationIfNotPreempted() {
if (should_reset_) {
should_reset_ = false;
gamepad_dispatcher_->ResetVibrationActuator(pad_index_, base::DoNothing());
}
}
ScriptPromise GamepadHapticActuator::reset(ScriptState* script_state) {
auto* resolver = MakeGarbageCollected<ScriptPromiseResolver>(script_state);
auto callback = WTF::Bind(&GamepadHapticActuator::OnResetCompleted,
WrapPersistent(this), WrapPersistent(resolver));
gamepad_dispatcher_->ResetVibrationActuator(pad_index_, std::move(callback));
return resolver->Promise();
}
void GamepadHapticActuator::OnResetCompleted(
ScriptPromiseResolver* resolver,
device::mojom::GamepadHapticsResult result) {
if (result == GamepadHapticsResult::GamepadHapticsResultError) {
resolver->Reject();
return;
}
resolver->Resolve(ResultToString(result));
}
void GamepadHapticActuator::Trace(Visitor* visitor) const {
visitor->Trace(gamepad_dispatcher_);
ScriptWrappable::Trace(visitor);
ExecutionContextClient::Trace(visitor);
}
} // namespace blink
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