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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/renderer_host/render_frame_metadata_provider_impl.h"
#include "base/check.h"
#include "base/functional/bind.h"
#include "base/observer_list.h"
#include "base/task/single_thread_task_runner.h"
#include "build/build_config.h"
#include "content/browser/renderer_host/frame_token_message_queue.h"
namespace content {
RenderFrameMetadataProviderImpl::RenderFrameMetadataProviderImpl(
scoped_refptr<base::SingleThreadTaskRunner> task_runner,
FrameTokenMessageQueue* frame_token_message_queue)
: task_runner_(task_runner),
frame_token_message_queue_(frame_token_message_queue) {}
RenderFrameMetadataProviderImpl::~RenderFrameMetadataProviderImpl() = default;
void RenderFrameMetadataProviderImpl::AddObserver(Observer* observer) {
observers_.AddObserver(observer);
}
void RenderFrameMetadataProviderImpl::RemoveObserver(Observer* observer) {
observers_.RemoveObserver(observer);
}
void RenderFrameMetadataProviderImpl::Bind(
mojo::PendingReceiver<cc::mojom::RenderFrameMetadataObserverClient>
client_receiver,
mojo::PendingRemote<cc::mojom::RenderFrameMetadataObserver> observer) {
render_frame_metadata_observer_remote_.reset();
render_frame_metadata_observer_remote_.Bind(std::move(observer));
render_frame_metadata_observer_client_receiver_.reset();
render_frame_metadata_observer_client_receiver_.Bind(
std::move(client_receiver), task_runner_);
// Reset on disconnect so that pending state will be correctly stored and
// later forwarded in the case of a renderer crash.
render_frame_metadata_observer_remote_.reset_on_disconnect();
#if BUILDFLAG(IS_ANDROID)
if (pending_root_scroll_offset_update_frequency_.has_value()) {
UpdateRootScrollOffsetUpdateFrequency(
*pending_root_scroll_offset_update_frequency_);
pending_root_scroll_offset_update_frequency_.reset();
}
#endif
if (pending_report_all_frame_submission_for_testing_.has_value()) {
ReportAllFrameSubmissionsForTesting(
*pending_report_all_frame_submission_for_testing_);
pending_report_all_frame_submission_for_testing_.reset();
}
}
#if BUILDFLAG(IS_ANDROID)
void RenderFrameMetadataProviderImpl::UpdateRootScrollOffsetUpdateFrequency(
cc::mojom::RootScrollOffsetUpdateFrequency frequency) {
if (!render_frame_metadata_observer_remote_) {
pending_root_scroll_offset_update_frequency_ = frequency;
return;
}
render_frame_metadata_observer_remote_->UpdateRootScrollOffsetUpdateFrequency(
frequency);
}
#endif
void RenderFrameMetadataProviderImpl::ReportAllFrameSubmissionsForTesting(
bool enabled) {
if (!render_frame_metadata_observer_remote_) {
pending_report_all_frame_submission_for_testing_ = enabled;
return;
}
render_frame_metadata_observer_remote_->ReportAllFrameSubmissionsForTesting(
enabled);
}
const cc::RenderFrameMetadata&
RenderFrameMetadataProviderImpl::LastRenderFrameMetadata() {
return last_render_frame_metadata_;
}
void RenderFrameMetadataProviderImpl::
OnRenderFrameMetadataChangedAfterActivation(
cc::RenderFrameMetadata metadata,
base::TimeTicks activation_time) {
last_render_frame_metadata_ = std::move(metadata);
for (Observer& observer : observers_)
observer.OnRenderFrameMetadataChangedAfterActivation(activation_time);
}
void RenderFrameMetadataProviderImpl::OnFrameTokenFrameSubmissionForTesting(
base::TimeTicks activation_time) {
for (Observer& observer : observers_)
observer.OnRenderFrameSubmission();
}
void RenderFrameMetadataProviderImpl::SetLastRenderFrameMetadataForTest(
cc::RenderFrameMetadata metadata) {
last_render_frame_metadata_ = metadata;
}
void RenderFrameMetadataProviderImpl::OnRenderFrameMetadataChanged(
uint32_t frame_token,
const cc::RenderFrameMetadata& metadata) {
// Guard for this being recursively deleted from one of the observer
// callbacks.
base::WeakPtr<RenderFrameMetadataProviderImpl> self =
weak_factory_.GetWeakPtr();
for (Observer& observer : observers_) {
observer.OnRenderFrameMetadataChangedBeforeActivation(metadata);
if (!self) {
return;
}
}
if (metadata.local_surface_id != last_local_surface_id_) {
last_local_surface_id_ = metadata.local_surface_id;
for (Observer& observer : observers_) {
observer.OnLocalSurfaceIdChanged(metadata);
if (!self) {
return;
}
}
}
if (!frame_token)
return;
// Both RenderFrameMetadataProviderImpl and FrameTokenMessageQueue are owned
// by the same RenderWidgetHostImpl. During shutdown the queue is cleared
// without running the callbacks.
frame_token_message_queue_->EnqueueOrRunFrameTokenCallback(
frame_token,
base::BindOnce(&RenderFrameMetadataProviderImpl::
OnRenderFrameMetadataChangedAfterActivation,
weak_factory_.GetWeakPtr(), std::move(metadata)));
}
void RenderFrameMetadataProviderImpl::OnFrameSubmissionForTesting(
uint32_t frame_token) {
frame_token_message_queue_->EnqueueOrRunFrameTokenCallback(
frame_token, base::BindOnce(&RenderFrameMetadataProviderImpl::
OnFrameTokenFrameSubmissionForTesting,
weak_factory_.GetWeakPtr()));
}
#if BUILDFLAG(IS_ANDROID)
void RenderFrameMetadataProviderImpl::OnRootScrollOffsetChanged(
const gfx::PointF& root_scroll_offset) {
for (Observer& observer : observers_)
observer.OnRootScrollOffsetChanged(root_scroll_offset);
}
#endif
} // namespace content
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