From fd68be29ab22deac5bce73c1a3caa9a9ef631185 Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Fri, 8 Jul 2022 21:13:32 +0200
Subject: [PATCH] LibWeb: Make BFC always drive IFC

Instead of allowing FormattingContext to instantiate an IFC for anything
that has inline children, move this logic to BFC.

This is fine, since only BFC deals with blocks having inline children
anyway.
---
 .../LibWeb/Layout/BlockFormattingContext.cpp       | 14 +++++++++-----
 .../Libraries/LibWeb/Layout/FormattingContext.cpp  |  4 +---
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp b/Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
index c07742bcdb..c84220ce51 100644
--- a/Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
+++ b/Userland/Libraries/LibWeb/Layout/BlockFormattingContext.cpp
@@ -432,11 +432,15 @@ void BlockFormattingContext::layout_block_level_children(BlockContainer const& b
 
         OwnPtr<FormattingContext> independent_formatting_context;
         if (child_box.can_have_children()) {
-            independent_formatting_context = create_independent_formatting_context_if_needed(m_state, child_box);
-            if (independent_formatting_context)
-                independent_formatting_context->run(child_box, layout_mode);
-            else
-                layout_block_level_children(verify_cast<BlockContainer>(child_box), layout_mode);
+            if (child_box.children_are_inline()) {
+                layout_inline_children(verify_cast<BlockContainer>(child_box), layout_mode);
+            } else {
+                independent_formatting_context = create_independent_formatting_context_if_needed(m_state, child_box);
+                if (independent_formatting_context)
+                    independent_formatting_context->run(child_box, layout_mode);
+                else
+                    layout_block_level_children(verify_cast<BlockContainer>(child_box), layout_mode);
+            }
         }
 
         compute_height(child_box, m_state);
diff --git a/Userland/Libraries/LibWeb/Layout/FormattingContext.cpp b/Userland/Libraries/LibWeb/Layout/FormattingContext.cpp
index afae391bbe..85c3fc474b 100644
--- a/Userland/Libraries/LibWeb/Layout/FormattingContext.cpp
+++ b/Userland/Libraries/LibWeb/Layout/FormattingContext.cpp
@@ -9,7 +9,6 @@
 #include <LibWeb/Layout/Box.h>
 #include <LibWeb/Layout/FlexFormattingContext.h>
 #include <LibWeb/Layout/FormattingContext.h>
-#include <LibWeb/Layout/InlineFormattingContext.h>
 #include <LibWeb/Layout/ReplacedBox.h>
 #include <LibWeb/Layout/SVGFormattingContext.h>
 #include <LibWeb/Layout/SVGSVGBox.h>
@@ -109,8 +108,7 @@ OwnPtr<FormattingContext> FormattingContext::create_independent_formatting_conte
         return make<TableFormattingContext>(state, verify_cast<TableBox>(child_box), this);
 
     VERIFY(is_block_formatting_context());
-    if (child_box.children_are_inline())
-        return make<InlineFormattingContext>(state, verify_cast<BlockContainer>(child_box), static_cast<BlockFormattingContext&>(*this));
+    VERIFY(!child_box.children_are_inline());
 
     // The child box is a block container that doesn't create its own BFC.
     // It will be formatted by this BFC.