LibWeb: Let subframes propagate paint invalidations via host element

When a paint invalidation occurs inside a subframe, it bubbles up to
Frame::set_needs_display(). From there, we call PageView if this is
the main frame, or otherwise invalidate the subframe host element.
This commit is contained in:
Andreas Kling 2020-06-07 14:56:29 +02:00
parent 59f9b32a44
commit 3ae3729b4e
Notes: sideshowbarker 2024-07-19 05:47:16 +09:00
5 changed files with 30 additions and 17 deletions

View file

@ -79,11 +79,6 @@ void HTMLIFrameElement::load_src(const String& value)
return;
}
m_hosted_frame->on_set_needs_display = [this](auto&) {
if (layout_node())
layout_node()->set_needs_display();
};
m_hosted_frame->loader().load(url);
}

View file

@ -93,9 +93,14 @@ void Frame::set_needs_display(const Gfx::Rect& rect)
if (!m_viewport_rect.intersects(rect))
return;
if (!on_set_needs_display)
if (is_main_frame()) {
if (page_view())
page_view()->notify_needs_display({}, *this, rect);
return;
on_set_needs_display(rect);
}
if (host_element() && host_element()->layout_node())
host_element()->layout_node()->set_needs_display();
}
void Frame::did_scroll(Badge<PageView>)

View file

@ -60,7 +60,6 @@ public:
void set_needs_display(const Gfx::Rect&);
Function<void(const Gfx::Rect&)> on_set_needs_display;
Function<void(const String&)> on_title_change;
Function<void(const URL&)> on_load_start;
Function<void(const Gfx::Bitmap&)> on_favicon_change;

View file

@ -72,15 +72,6 @@ PageView::PageView()
if (on_load_start)
on_load_start(url);
};
main_frame().on_set_needs_display = [this](auto& content_rect) {
if (content_rect.is_empty()) {
update();
return;
}
Gfx::Rect adjusted_rect = content_rect;
adjusted_rect.set_location(to_widget_position(content_rect.location()));
update(adjusted_rect);
};
set_should_hide_unnecessary_scrollbars(true);
set_background_role(ColorRole::Base);
@ -334,6 +325,22 @@ Gfx::Point PageView::to_screen_position(const Web::Frame& frame, const Gfx::Poin
return screen_relative_rect().location().translated(offset).translated(frame_position);
}
Gfx::Rect PageView::to_widget_rect(const Web::Frame& frame, const Gfx::Rect& frame_rect) const
{
Gfx::Point offset;
for (auto* f = &frame; f; f = f->parent()) {
if (!f->host_element())
return {};
if (!f->host_element()->layout_node())
return {};
auto f_position = f->host_element()->layout_node()->box_type_agnostic_position().to_int_point();
offset.move_by(f_position);
}
auto content_position = frame_rect.location().translated(offset);
return { to_widget_position(content_position), frame_rect.size() };
}
void PageView::notify_link_context_menu_request(Badge<EventHandler>, Web::Frame& frame, const Gfx::Point& content_position, const String& href, const String&, unsigned)
{
if (on_link_context_menu_request)
@ -356,4 +363,9 @@ void PageView::notify_tooltip_area_leave(Badge<EventHandler>, Web::Frame&)
GUI::Application::the().hide_tooltip();
}
void PageView::notify_needs_display(Badge<Web::Frame>, Web::Frame& frame, const Gfx::Rect& rect)
{
update(to_widget_rect(frame, rect));
}
}

View file

@ -81,6 +81,7 @@ public:
void notify_link_hover(Badge<EventHandler>, Web::Frame&, const String& href);
void notify_tooltip_area_enter(Badge<EventHandler>, Web::Frame&, const Gfx::Point& content_position, const String& title);
void notify_tooltip_area_leave(Badge<EventHandler>, Web::Frame&);
void notify_needs_display(Badge<Web::Frame>, Web::Frame&, const Gfx::Rect&);
protected:
PageView();
@ -97,6 +98,7 @@ private:
virtual void did_scroll() override;
Gfx::Point to_screen_position(const Web::Frame&, const Gfx::Point&) const;
Gfx::Rect to_widget_rect(const Web::Frame&, const Gfx::Rect&) const;
void layout_and_sync_size();