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LibWeb+WebContent: Move paint recording init into Navigable

This refactoring makes WebContent less aware of LibWeb internals.
The code that initializes paint recording commands now resides in
`Navigable::paint()`. Additionally, we no longer need to reuse
PaintContext across iframes, allowing us to avoid saving and restoring
its state before recursing into an iframe.
This commit is contained in:
Aliaksandr Kalenik 2024-01-15 11:28:21 +01:00 committed by Andreas Kling
parent 72dd37438d
commit cc447c9c80
6 changed files with 65 additions and 47 deletions

View file

@ -32,6 +32,7 @@
#include <LibWeb/Loader/GeneratedPagesLoader.h>
#include <LibWeb/Page/Page.h>
#include <LibWeb/Painting/Paintable.h>
#include <LibWeb/Painting/ViewportPaintable.h>
#include <LibWeb/Platform/EventLoopPlugin.h>
#include <LibWeb/XHR/FormData.h>
@ -2032,4 +2033,45 @@ void Navigable::inform_the_navigation_api_about_aborting_navigation()
});
}
void Navigable::paint(Painting::RecordingPainter& recording_painter, PaintConfig config)
{
auto document = active_document();
if (!document)
return;
auto const& page = traversable_navigable()->page();
auto viewport_rect = page.css_to_device_rect(this->viewport_rect());
Gfx::IntRect bitmap_rect { {}, viewport_rect.size().to_type<int>() };
document->update_layout();
auto background_color = document->background_color();
recording_painter.fill_rect(bitmap_rect, background_color);
if (!document->paintable())
return;
Web::PaintContext context(recording_painter, page.palette(), page.client().device_pixels_per_css_pixel());
context.set_device_viewport_rect(viewport_rect);
context.set_should_show_line_box_borders(config.should_show_line_box_borders);
context.set_should_paint_overlay(config.paint_overlay);
context.set_has_focus(config.has_focus);
if (is_traversable()) {
document->paintable()->collect_scroll_frames(context);
}
document->paintable()->paint_all_phases(context);
// FIXME: Support scrollable frames inside iframes.
if (is_traversable()) {
Vector<Gfx::IntPoint> scroll_offsets_by_frame_id;
scroll_offsets_by_frame_id.resize(context.scroll_frames().size());
for (auto [_, scrollable_frame] : context.scroll_frames())
scroll_offsets_by_frame_id[scrollable_frame.id] = context.rounded_device_point(
scrollable_frame.offset)
.to_type<int>();
recording_painter.apply_scroll_offsets(scroll_offsets_by_frame_id);
}
}
}

View file

@ -170,6 +170,13 @@ public:
[[nodiscard]] TargetSnapshotParams snapshot_target_snapshot_params();
struct PaintConfig {
bool paint_overlay { false };
bool should_show_line_box_borders { false };
bool has_focus { false };
};
void paint(Painting::RecordingPainter&, PaintConfig);
protected:
Navigable();

View file

@ -41,25 +41,25 @@ void NestedBrowsingContextPaintable::paint(PaintContext& context, PaintPhase pha
auto clip_rect = context.rounded_device_rect(absolute_rect);
ScopedCornerRadiusClip corner_clip { context, clip_rect, normalized_border_radii_data(ShrinkRadiiForBorders::Yes) };
auto* hosted_document = layout_box().dom_node().content_document_without_origin_check();
auto const* hosted_document = layout_box().dom_node().content_document_without_origin_check();
if (!hosted_document)
return;
auto* hosted_paint_tree = hosted_document->paintable();
auto const* hosted_paint_tree = hosted_document->paintable();
if (!hosted_paint_tree)
return;
context.recording_painter().save();
auto old_viewport_rect = context.device_viewport_rect();
context.recording_painter().add_clip_rect(clip_rect.to_type<int>());
auto absolute_device_rect = context.enclosing_device_rect(absolute_rect);
context.recording_painter().translate(absolute_device_rect.x().value(), absolute_device_rect.y().value());
context.set_device_viewport_rect({ {}, context.enclosing_device_size(layout_box().dom_node().content_navigable()->size()) });
const_cast<ViewportPaintable*>(hosted_paint_tree)->paint_all_phases(context);
HTML::Navigable::PaintConfig paint_config;
paint_config.paint_overlay = context.should_paint_overlay();
paint_config.should_show_line_box_borders = context.should_show_line_box_borders();
paint_config.has_focus = context.has_focus();
const_cast<DOM::Document*>(hosted_document)->navigable()->paint(context.recording_painter(), paint_config);
context.set_device_viewport_rect(old_viewport_rect);
context.recording_painter().restore();
if constexpr (HIGHLIGHT_FOCUSED_FRAME_DEBUG) {