view_painter.cc | Explore in Territory

// 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/core/paint/view_painter.h"

#include "base/containers/adapters.h"
#include "third_party/blink/renderer/core/frame/local_frame.h"
#include "third_party/blink/renderer/core/frame/local_frame_view.h"
#include "third_party/blink/renderer/core/frame/settings.h"
#include "third_party/blink/renderer/core/layout/layout_box.h"
#include "third_party/blink/renderer/core/layout/layout_view.h"
#include "third_party/blink/renderer/core/layout/physical_box_fragment.h"
#include "third_party/blink/renderer/core/paint/box_background_paint_context.h"
#include "third_party/blink/renderer/core/paint/box_decoration_data.h"
#include "third_party/blink/renderer/core/paint/box_model_object_painter.h"
#include "third_party/blink/renderer/core/paint/box_painter.h"
#include "third_party/blink/renderer/core/paint/object_painter.h"
#include "third_party/blink/renderer/core/paint/paint_auto_dark_mode.h"
#include "third_party/blink/renderer/core/paint/paint_info.h"
#include "third_party/blink/renderer/core/paint/paint_layer.h"
#include "third_party/blink/renderer/core/paint/paint_layer_scrollable_area.h"
#include "third_party/blink/renderer/core/view_transition/view_transition.h"
#include "third_party/blink/renderer/core/view_transition/view_transition_utils.h"
#include "third_party/blink/renderer/platform/graphics/paint/drawing_recorder.h"
#include "third_party/blink/renderer/platform/graphics/paint/geometry_mapper.h"
#include "third_party/blink/renderer/platform/graphics/paint/scoped_paint_chunk_properties.h"
#include "third_party/blink/renderer/platform/runtime_enabled_features.h"

namespace blink {

// Behind the root element of the main frame of the page, there is an infinite
// canvas. This is by default white, but it can be overridden by
// BaseBackgroundColor on the LocalFrameView.
// https://drafts.fxtf.org/compositing/#rootgroup
void ViewPainter::PaintRootGroup(const PaintInfo& paint_info,
                                 const gfx::Rect& pixel_snapped_background_rect,
                                 const Document& document,
                                 const DisplayItemClient& client,
                                 const PropertyTreeStateOrAlias& state) { … }

void ViewPainter::PaintBoxDecorationBackground(const PaintInfo& paint_info) { … }

// This function handles background painting for the LayoutView.
// View background painting is special in the following ways:
// 1. The view paints background for the root element, the background
//    positioning respects the positioning (but not transform) of the root
//    element. However, this method assumes that there is already a
//    PaintChunk being recorded with the LocalBorderBoxProperties of the
//    root element. Therefore the transform of the root element
//    are applied via PaintChunksToCcLayer, and not via the display list of the
//    PaintChunk itself.
// 2. CSS background-clip is ignored, the background layers always expand to
//    cover the whole canvas.
// 3. The main frame is also responsible for painting the user-agent-defined
//    base background color. Conceptually it should be painted by the embedder
//    but painting it here allows culling and pre-blending optimization when
//    possible.
void ViewPainter::PaintRootElementGroup(
    const PaintInfo& paint_info,
    const gfx::Rect& pixel_snapped_background_rect,
    const PropertyTreeStateOrAlias& background_paint_state,
    const DisplayItemClient& background_client,
    bool painted_separate_backdrop,
    bool painted_separate_effect) { … }

const LayoutView& ViewPainter::GetLayoutView() const { … }

PhysicalRect ViewPainter::BackgroundRect() const { … }

}  // namespace blink
chromium/third_party/blink/renderer/core/paint/view_painter.cc
