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// Copyright 2024 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/viz/service/input/render_input_router_delegate_impl.h"
#include <utility>
#include "base/notimplemented.h"
#include "base/trace_event/trace_event.h"
#include "base/trace_event/typed_macros.h"
#include "components/input/render_widget_host_input_event_router.h"
#include "components/viz/service/input/peak_gpu_memory_tracker_impl.h"
#include "ui/latency/latency_info.h"
namespace viz {
namespace {
bool IsInputEventContinuous(const blink::WebInputEvent& event) {
using Type = blink::mojom::EventType;
return (event.GetType() == Type::kTouchMove ||
event.GetType() == Type::kGestureScrollUpdate ||
event.GetType() == Type::kGesturePinchUpdate);
}
} // namespace
RenderInputRouterDelegateImpl::RenderInputRouterDelegateImpl(
scoped_refptr<input::RenderWidgetHostInputEventRouter> rwhier,
Delegate& delegate,
const FrameSinkId& frame_sink_id)
: rwhier_(std::move(rwhier)),
delegate_(delegate),
frame_sink_id_(frame_sink_id) {
TRACE_EVENT_INSTANT(
"input", "RenderInputRouterDelegateImpl::RenderInputRouterDelegateImpl",
"frame_sink_id", frame_sink_id);
CHECK(rwhier_);
}
RenderInputRouterDelegateImpl::~RenderInputRouterDelegateImpl() {
TRACE_EVENT_INSTANT(
"input", "RenderInputRouterDelegateImpl::~RenderInputRouterDelegateImpl",
"frame_sink_id", frame_sink_id_);
}
input::RenderWidgetHostViewInput*
RenderInputRouterDelegateImpl::GetPointerLockView() {
// This is required when we are doing targeting for mouse/mousewheel events.
// Mouse events are not being handled on Viz with current scope of
// InputVizard.
NOTREACHED();
}
std::optional<bool> RenderInputRouterDelegateImpl::IsDelegatedInkHovering() {
return delegate_->IsDelegatedInkHovering(frame_sink_id_);
}
std::unique_ptr<input::RenderInputRouterIterator>
RenderInputRouterDelegateImpl::GetEmbeddedRenderInputRouters() {
return delegate_->GetEmbeddedRenderInputRouters(frame_sink_id_);
}
input::RenderWidgetHostInputEventRouter*
RenderInputRouterDelegateImpl::GetInputEventRouter() {
return rwhier_.get();
}
bool RenderInputRouterDelegateImpl::IsIgnoringWebInputEvents(
const blink::WebInputEvent& event) const {
// When browser starts ignoring input events, it calls
// RenderWidgetHostViewAndroid::ResetGestureDetection which results in
// dropping the rest of the current input sequence. If WebContents ignores
// input events according to WebInputEventAuditCallback, it is applicable from
// the next input sequence and the current input sequence will not ignore
// input events on VizCompositorThread.
return false;
}
bool RenderInputRouterDelegateImpl::PreHandleGestureEvent(
const blink::WebGestureEvent& event) {
return false;
}
void RenderInputRouterDelegateImpl::NotifyObserversOfInputEvent(
const blink::WebInputEvent& event,
bool dispatched_to_renderer) {
if (IsInputEventContinuous(event)) {
return;
}
auto web_coalesced_event =
std::make_unique<blink::WebCoalescedInputEvent>(event, ui::LatencyInfo());
delegate_->GetRIRDelegateClientRemote(frame_sink_id_)
->NotifyObserversOfInputEvent(std::move(web_coalesced_event),
dispatched_to_renderer);
}
void RenderInputRouterDelegateImpl::NotifyObserversOfInputEventAcks(
blink::mojom::InputEventResultSource ack_source,
blink::mojom::InputEventResultState ack_result,
const blink::WebInputEvent& event) {
if (IsInputEventContinuous(event)) {
return;
}
auto web_coalesced_event =
std::make_unique<blink::WebCoalescedInputEvent>(event, ui::LatencyInfo());
delegate_->GetRIRDelegateClientRemote(frame_sink_id_)
->NotifyObserversOfInputEventAcks(ack_source, ack_result,
std::move(web_coalesced_event));
}
bool RenderInputRouterDelegateImpl::IsInitializedAndNotDead() {
// Since this is being checked in Viz, Renderer process should already have
// been initialized. When the renderer process dies, |this| will be deleted
// and sending input to renderer is stopped at InputManager level.
return true;
}
input::TouchEmulator* RenderInputRouterDelegateImpl::GetTouchEmulator(
bool create_if_necessary) {
// Touch emulation is handled solely on browser.
return nullptr;
}
void RenderInputRouterDelegateImpl::OnInvalidInputEventSource() {
delegate_->GetRIRDelegateClientRemote(frame_sink_id_)
->OnInvalidInputEventSource();
}
std::unique_ptr<PeakGpuMemoryTracker>
RenderInputRouterDelegateImpl::MakePeakGpuMemoryTracker(
PeakGpuMemoryTracker::Usage usage) {
return std::make_unique<PeakGpuMemoryTrackerImpl>(usage,
delegate_->GetGpuService());
}
input::StylusInterface* RenderInputRouterDelegateImpl::GetStylusInterface() {
// Stylus input is not being handled by InputVizard currently.
return nullptr;
}
bool RenderInputRouterDelegateImpl::IsHidden() const {
return is_hidden_;
}
void RenderInputRouterDelegateImpl::OnInputEventAckTimeout(
base::TimeTicks ack_timeout_ts) {
if (!is_responsive_) {
return;
}
is_responsive_ = false;
auto* remote = delegate_->GetRIRDelegateClientRemote(frame_sink_id_);
if (!remote) {
return;
}
remote->RendererInputResponsivenessChanged(is_responsive_,
std::move(ack_timeout_ts));
}
void RenderInputRouterDelegateImpl::RendererIsResponsive() {
if (is_responsive_) {
return;
}
is_responsive_ = true;
auto* remote = delegate_->GetRIRDelegateClientRemote(frame_sink_id_);
if (!remote) {
return;
}
remote->RendererInputResponsivenessChanged(is_responsive_, std::nullopt);
}
void RenderInputRouterDelegateImpl::DidOverscroll(
blink::mojom::DidOverscrollParamsPtr params) {
// |InputRouterImpl::GestureEventHandled| triggers both
// |RenderInputRouterDelegateImpl::DidOverscroll| (which sends overscroll
// information to the browser process) and
// |RenderInputRouterSupportAndroid::GestureEventAck| which calls in
// StopFlingingIfNecessary, so the decision to stop any fling due to
// overscroll is handled within the Viz process.
delegate_->GetRIRDelegateClientRemote(frame_sink_id_)
->StateOnOverscrollTransfer(std::move(params));
}
} // namespace viz
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