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@@ -55,18 +55,21 @@ void WebContentView::paint_event(GUI::PaintEvent& event)
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painter.add_clip_rect(event.rect());
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painter.translate(frame_thickness(), frame_thickness());
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- ASSERT(m_bitmap);
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- painter.blit({ 0, 0 }, *m_bitmap, m_bitmap->rect());
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+ ASSERT(m_front_bitmap);
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+ painter.blit({ 0, 0 }, *m_front_bitmap, m_front_bitmap->rect());
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}
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void WebContentView::resize_event(GUI::ResizeEvent& event)
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{
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GUI::ScrollableWidget::resize_event(event);
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- auto bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::RGB32, available_size());
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- m_bitmap = bitmap->to_bitmap_backed_by_shared_buffer();
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- m_bitmap->shared_buffer()->share_with(client().server_pid());
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- client().post_message(Messages::WebContentServer::SetViewportRect(Gfx::IntRect({ horizontal_scrollbar().value(), vertical_scrollbar().value() }, m_bitmap->size())));
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+ m_front_bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::RGB32, available_size())->to_bitmap_backed_by_shared_buffer();
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+ m_front_bitmap->shared_buffer()->share_with(client().server_pid());
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+
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+ m_back_bitmap = Gfx::Bitmap::create(Gfx::BitmapFormat::RGB32, available_size())->to_bitmap_backed_by_shared_buffer();
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+ m_back_bitmap->shared_buffer()->share_with(client().server_pid());
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+
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+ client().post_message(Messages::WebContentServer::SetViewportRect(Gfx::IntRect({ horizontal_scrollbar().value(), vertical_scrollbar().value() }, available_size())));
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request_repaint();
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}
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@@ -87,8 +90,10 @@ void WebContentView::mousemove_event(GUI::MouseEvent& event)
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void WebContentView::notify_server_did_paint(Badge<WebContentClient>, i32 shbuf_id)
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{
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- if (m_bitmap->shbuf_id() == shbuf_id)
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+ if (m_back_bitmap->shbuf_id() == shbuf_id) {
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+ swap(m_back_bitmap, m_front_bitmap);
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update();
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+ }
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}
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void WebContentView::notify_server_did_invalidate_content_rect(Badge<WebContentClient>, [[maybe_unused]] const Gfx::IntRect& content_rect)
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@@ -128,7 +133,7 @@ void WebContentView::did_scroll()
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void WebContentView::request_repaint()
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{
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- client().post_message(Messages::WebContentServer::Paint(m_bitmap->rect().translated(horizontal_scrollbar().value(), vertical_scrollbar().value()), m_bitmap->shbuf_id()));
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+ client().post_message(Messages::WebContentServer::Paint(m_back_bitmap->rect().translated(horizontal_scrollbar().value(), vertical_scrollbar().value()), m_back_bitmap->shbuf_id()));
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}
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WebContentClient& WebContentView::client()
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