ladybird/Libraries/LibWeb/Painting/NavigableContainerViewportPaintable.cpp
Aliaksandr Kalenik 082053d781 LibWeb+WebContent+WebWorker: Move backing store allocation in Navigable
Making navigables responsible for backing store allocation will allow us
to have separate backing stores for iframes and run paint updates for
them independently, which is a step toward isolating them into separate
processes.

Another nice side effect is that now Skia backend context is ready by
the time backing stores are allocated, so we will be able to get rid of
BackingStore class in the upcoming changes and allocate PaintingSurface
directly.
2025-07-04 16:12:47 +02:00

75 lines
2.9 KiB
C++

/*
* Copyright (c) 2018-2022, Andreas Kling <andreas@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Debug.h>
#include <LibWeb/HTML/NavigableContainer.h>
#include <LibWeb/Layout/NavigableContainerViewport.h>
#include <LibWeb/Layout/Viewport.h>
#include <LibWeb/Painting/BorderRadiusCornerClipper.h>
#include <LibWeb/Painting/DisplayListRecorder.h>
#include <LibWeb/Painting/NavigableContainerViewportPaintable.h>
#include <LibWeb/Painting/ViewportPaintable.h>
namespace Web::Painting {
GC_DEFINE_ALLOCATOR(NavigableContainerViewportPaintable);
GC::Ref<NavigableContainerViewportPaintable> NavigableContainerViewportPaintable::create(Layout::NavigableContainerViewport const& layout_box)
{
return layout_box.heap().allocate<NavigableContainerViewportPaintable>(layout_box);
}
NavigableContainerViewportPaintable::NavigableContainerViewportPaintable(Layout::NavigableContainerViewport const& layout_box)
: PaintableBox(layout_box)
{
}
Layout::NavigableContainerViewport const& NavigableContainerViewportPaintable::layout_box() const
{
return static_cast<Layout::NavigableContainerViewport const&>(layout_node());
}
void NavigableContainerViewportPaintable::paint(PaintContext& context, PaintPhase phase) const
{
if (!is_visible())
return;
PaintableBox::paint(context, phase);
if (phase == PaintPhase::Foreground) {
auto absolute_rect = this->absolute_rect();
auto clip_rect = context.rounded_device_rect(absolute_rect);
ScopedCornerRadiusClip corner_clip { context, clip_rect, normalized_border_radii_data(ShrinkRadiiForBorders::Yes) };
auto const* hosted_document = layout_box().dom_node().content_document_without_origin_check();
if (!hosted_document)
return;
auto const* hosted_paint_tree = hosted_document->paintable();
if (!hosted_paint_tree)
return;
context.display_list_recorder().save();
context.display_list_recorder().add_clip_rect(clip_rect.to_type<int>());
HTML::PaintConfig paint_config;
paint_config.paint_overlay = context.should_paint_overlay();
paint_config.should_show_line_box_borders = context.should_show_line_box_borders();
auto display_list = const_cast<DOM::Document*>(hosted_document)->record_display_list(paint_config);
auto scroll_state_snapshot = hosted_document->paintable()->scroll_state().snapshot();
context.display_list_recorder().paint_nested_display_list(display_list, move(scroll_state_snapshot), context.enclosing_device_rect(absolute_rect).to_type<int>());
context.display_list_recorder().restore();
if constexpr (HIGHLIGHT_FOCUSED_FRAME_DEBUG) {
if (layout_box().dom_node().content_navigable()->is_focused()) {
context.display_list_recorder().draw_rect(clip_rect.to_type<int>(), Color::Cyan);
}
}
}
}
}