paint_preview_recorder_impl.cc | Explore in Territory

// Copyright 2019 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/paint_preview/renderer/paint_preview_recorder_impl.h"

#include <memory>
#include <optional>
#include <utility>

#include "base/auto_reset.h"
#include "base/functional/bind.h"
#include "base/metrics/histogram_functions.h"
#include "base/task/bind_post_task.h"
#include "base/task/sequenced_task_runner.h"
#include "base/task/single_thread_task_runner.h"
#include "base/task/task_runner.h"
#include "base/task/task_traits.h"
#include "base/task/thread_pool.h"
#include "base/time/time.h"
#include "base/trace_event/common/trace_event_common.h"
#include "base/trace_event/trace_event.h"
#include "cc/paint/paint_record.h"
#include "cc/paint/paint_recorder.h"
#include "components/paint_preview/common/paint_preview_tracker.h"
#include "components/paint_preview/common/serialized_recording.h"
#include "components/paint_preview/renderer/paint_preview_recorder_utils.h"
#include "content/public/renderer/render_frame.h"
#include "third_party/blink/public/common/associated_interfaces/associated_interface_registry.h"
#include "third_party/blink/public/web/web_local_frame.h"

namespace paint_preview {

namespace {

// Returns a bound origin value centered about `offset` or clamped to the start
// or end of the document if centering would result in capturing less area.
// NOTE: this centers about a scroll offset ignoring the size of the viewport.
int GetBoundOrigin(int document_dimension, int bounds_dimension, int offset) { … }

// Represents a finished recording of the page represented by the response and
// status of the mojo message.
struct FinishedRecording { … };

CapturePaintPreviewCallback;

// Finishes building the PaintPreviewCaptureResponse mojo message and sends it
// or sends an error if the status is not `PaintPreviewStatus::kOK`
void BuildAndSendResponse(std::unique_ptr<PaintPreviewTracker> tracker,
                          FinishedRecording out,
                          CapturePaintPreviewCallback callback) { … }

// Records `skp` to `skp_file` on the threadpool to avoid blocking the main
// thread.
void RecordToFileOnThreadPool(sk_sp<const SkPicture> skp,
                              base::File skp_file,
                              std::unique_ptr<PaintPreviewTracker> tracker,
                              std::optional<size_t> max_capture_size,
                              FinishedRecording out,
                              CapturePaintPreviewCallback callback) { … }

// Handles file persistence storage.
void SerializeFileRecording(sk_sp<const SkPicture> skp,
                            base::File skp_file,
                            std::unique_ptr<PaintPreviewTracker> tracker,
                            std::optional<size_t> max_capture_size,
                            FinishedRecording out,
                            CapturePaintPreviewCallback callback) { … }

// Handles memory buffer persistence storage.
void SerializeMemoryBufferRecording(
    sk_sp<const SkPicture> skp,
    std::unique_ptr<PaintPreviewTracker> tracker,
    std::optional<size_t> max_capture_size,
    FinishedRecording out,
    CapturePaintPreviewCallback callback) { … }

// Finishes the recording process by converting the `recording` to an SkPicture.
// Serialization is then delegated based on the type of `persistence`.
void FinishRecordingOnUIThread(cc::PaintRecord recording,
                               const gfx::Rect& bounds,
                               std::unique_ptr<PaintPreviewTracker> tracker,
                               RecordingPersistence persistence,
                               base::File skp_file,
                               std::optional<size_t> max_capture_size,
                               mojom::PaintPreviewCaptureResponsePtr response,
                               CapturePaintPreviewCallback callback) { … }

}  // namespace

PaintPreviewRecorderImpl::PaintPreviewRecorderImpl(
    content::RenderFrame* render_frame)
    : … { … }

PaintPreviewRecorderImpl::~PaintPreviewRecorderImpl() = default;

void PaintPreviewRecorderImpl::CapturePaintPreview(
    mojom::PaintPreviewCaptureParamsPtr params,
    CapturePaintPreviewCallback callback) { … }

void PaintPreviewRecorderImpl::OnDestruct() { … }

void PaintPreviewRecorderImpl::BindPaintPreviewRecorder(
    mojo::PendingAssociatedReceiver<mojom::PaintPreviewRecorder> receiver) { … }

void PaintPreviewRecorderImpl::CapturePaintPreviewInternal(
    const mojom::PaintPreviewCaptureParamsPtr& params,
    mojom::PaintPreviewCaptureResponsePtr response,
    CapturePaintPreviewCallback callback) { … }

}  // namespace paint_preview
chromium/components/paint_preview/renderer/paint_preview_recorder_impl.cc
