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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 "third_party/blink/renderer/modules/gamepad/gamepad_dispatcher.h"
#include <utility>
#include "device/gamepad/public/cpp/gamepads.h"
#include "third_party/blink/public/platform/browser_interface_broker_proxy.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/modules/gamepad/gamepad_shared_memory_reader.h"
#include "third_party/blink/renderer/modules/gamepad/navigator_gamepad.h"
namespace blink {
using device::mojom::blink::GamepadHapticsManager;
void GamepadDispatcher::SampleGamepads(device::Gamepads& gamepads) {
if (reader_) {
reader_->SampleGamepads(&gamepads);
}
}
void GamepadDispatcher::PlayVibrationEffectOnce(
uint32_t pad_index,
device::mojom::blink::GamepadHapticEffectType type,
device::mojom::blink::GamepadEffectParametersPtr params,
GamepadHapticsManager::PlayVibrationEffectOnceCallback callback) {
InitializeHaptics();
gamepad_haptics_manager_remote_->PlayVibrationEffectOnce(
pad_index, type, std::move(params), std::move(callback));
}
void GamepadDispatcher::ResetVibrationActuator(
uint32_t pad_index,
GamepadHapticsManager::ResetVibrationActuatorCallback callback) {
InitializeHaptics();
gamepad_haptics_manager_remote_->ResetVibrationActuator(pad_index,
std::move(callback));
}
GamepadDispatcher::GamepadDispatcher(ExecutionContext& context)
: execution_context_(&context), gamepad_haptics_manager_remote_(&context) {}
GamepadDispatcher::~GamepadDispatcher() = default;
void GamepadDispatcher::InitializeHaptics() {
if (!gamepad_haptics_manager_remote_.is_bound() && execution_context_) {
// See https://bit.ly/2S0zRAS for task types.
auto task_runner =
execution_context_->GetTaskRunner(TaskType::kMiscPlatformAPI);
execution_context_->GetBrowserInterfaceBroker().GetInterface(
gamepad_haptics_manager_remote_.BindNewPipeAndPassReceiver(
std::move(task_runner)));
}
}
void GamepadDispatcher::Trace(Visitor* visitor) const {
visitor->Trace(execution_context_);
visitor->Trace(reader_);
visitor->Trace(gamepad_haptics_manager_remote_);
PlatformEventDispatcher::Trace(visitor);
}
void GamepadDispatcher::DidConnectGamepad(uint32_t index,
const device::Gamepad& gamepad) {
DispatchDidConnectOrDisconnectGamepad(index, gamepad, true);
}
void GamepadDispatcher::DidDisconnectGamepad(uint32_t index,
const device::Gamepad& gamepad) {
DispatchDidConnectOrDisconnectGamepad(index, gamepad, false);
}
void GamepadDispatcher::ButtonOrAxisDidChange(uint32_t index,
const device::Gamepad& gamepad) {
DCHECK_LT(index, device::Gamepads::kItemsLengthCap);
NotifyControllers();
}
void GamepadDispatcher::DispatchDidConnectOrDisconnectGamepad(
uint32_t index,
const device::Gamepad& gamepad,
bool connected) {
DCHECK_LT(index, device::Gamepads::kItemsLengthCap);
DCHECK_EQ(connected, gamepad.connected);
NotifyControllers();
}
void GamepadDispatcher::StartListening(LocalDOMWindow* window) {
if (!reader_) {
DCHECK(window);
reader_ = MakeGarbageCollected<GamepadSharedMemoryReader>(*window);
}
reader_->Start(this);
}
void GamepadDispatcher::StopListening() {
if (reader_)
reader_->Stop();
}
} // namespace blink
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