Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89 Commit: 93712b24bf Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256 Reviewed-by: https://github.com/sideshowbarker
2025-09-02 15:46:33 +00:00 · 2024-11-09 12:25:08 -05:00 · 2024-11-09 12:25:08 -05:00 · 93712b24bf · 2024-11-10 11:51:52 +00:00
commit 93712b24bf
parent 950e819ee7
4547 changed files with 104 additions and 113 deletions
--- a/Libraries/LibWeb/Layout/BlockFormattingContext.h
+++ b/Libraries/LibWeb/Layout/BlockFormattingContext.h
@ -0,0 +1,175 @@
+/*
+ * Copyright (c) 2020-2022, Andreas Kling <andreas@ladybird.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Vector.h>
+#include <LibWeb/Forward.h>
+#include <LibWeb/Layout/BlockContainer.h>
+#include <LibWeb/Layout/FormattingContext.h>
+#include <LibWeb/Layout/InlineFormattingContext.h>
+
+namespace Web::Layout {
+
+class LineBuilder;
+
+// https://www.w3.org/TR/css-display/#block-formatting-context
+class BlockFormattingContext : public FormattingContext {
+public:
+    explicit BlockFormattingContext(LayoutState&, LayoutMode layout_mode, BlockContainer const&, FormattingContext* parent);
+    ~BlockFormattingContext();
+
+    virtual void run(AvailableSpace const&) override;
+    virtual CSSPixels automatic_content_width() const override;
+    virtual CSSPixels automatic_content_height() const override;
+
+    auto const& left_side_floats() const { return m_left_floats; }
+    auto const& right_side_floats() const { return m_right_floats; }
+
+    bool box_should_avoid_floats_because_it_establishes_fc(Box const&);
+    void compute_width(Box const&, AvailableSpace const&);
+
+    // https://www.w3.org/TR/css-display/#block-formatting-context-root
+    BlockContainer const& root() const { return static_cast<BlockContainer const&>(context_box()); }
+
+    virtual void parent_context_did_dimension_child_root_box() override;
+
+    void resolve_used_height_if_not_treated_as_auto(Box const&, AvailableSpace const&);
+    void resolve_used_height_if_treated_as_auto(Box const&, AvailableSpace const&, FormattingContext const* box_formatting_context = nullptr);
+
+    SpaceUsedAndContainingMarginForFloats space_used_and_containing_margin_for_floats(CSSPixels y) const;
+    [[nodiscard]] SpaceUsedByFloats intrusion_by_floats_into_box(Box const&, CSSPixels y_in_box) const;
+    [[nodiscard]] SpaceUsedByFloats intrusion_by_floats_into_box(LayoutState::UsedValues const&, CSSPixels y_in_box) const;
+
+    virtual CSSPixels greatest_child_width(Box const&) const override;
+
+    void layout_floating_box(Box const& child, BlockContainer const& containing_block, AvailableSpace const&, CSSPixels y, LineBuilder* = nullptr);
+
+    void layout_block_level_box(Box const&, BlockContainer const&, CSSPixels& bottom_of_lowest_margin_box, AvailableSpace const&);
+
+    void resolve_vertical_box_model_metrics(Box const&);
+
+    enum class DidIntroduceClearance {
+        Yes,
+        No,
+    };
+
+    [[nodiscard]] DidIntroduceClearance clear_floating_boxes(Node const& child_box, Optional<InlineFormattingContext&> inline_formatting_context);
+
+    void reset_margin_state() { m_margin_state.reset(); }
+
+private:
+    CSSPixels compute_auto_height_for_block_level_element(Box const&, AvailableSpace const&);
+
+    void compute_width_for_floating_box(Box const&, AvailableSpace const&);
+
+    void compute_width_for_block_level_replaced_element_in_normal_flow(Box const&, AvailableSpace const&);
+
+    void layout_viewport(AvailableSpace const&);
+
+    void layout_block_level_children(BlockContainer const&, AvailableSpace const&);
+    void layout_inline_children(BlockContainer const&, AvailableSpace const&);
+
+    void place_block_level_element_in_normal_flow_horizontally(Box const& child_box, AvailableSpace const&);
+    void place_block_level_element_in_normal_flow_vertically(Box const&, CSSPixels y);
+
+    void ensure_sizes_correct_for_left_offset_calculation(ListItemBox const&);
+    void layout_list_item_marker(ListItemBox const&, CSSPixels const& left_space_before_list_item_elements_formatted);
+
+    void measure_scrollable_overflow(Box const&, CSSPixels& bottom_edge, CSSPixels& right_edge) const;
+
+    enum class FloatSide {
+        Left,
+        Right,
+    };
+
+    struct FloatingBox {
+        JS::NonnullGCPtr<Box const> box;
+
+        LayoutState::UsedValues& used_values;
+
+        // Offset from left/right edge to the left content edge of `box`.
+        CSSPixels offset_from_edge { 0 };
+
+        // Top margin edge of `box`.
+        CSSPixels top_margin_edge { 0 };
+
+        // Bottom margin edge of `box`.
+        CSSPixels bottom_margin_edge { 0 };
+    };
+
+    struct FloatSideData {
+        // Floating boxes currently accumulating on this side.
+        Vector<FloatingBox&> current_boxes;
+
+        // Combined width of boxes currently accumulating on this side.
+        // This is the innermost margin of the innermost floating box.
+        CSSPixels current_width { 0 };
+
+        // Highest value of `m_current_width` we've seen.
+        CSSPixels max_width { 0 };
+
+        // All floating boxes encountered thus far within this BFC.
+        Vector<NonnullOwnPtr<FloatingBox>> all_boxes;
+
+        // Current Y offset from BFC root top.
+        CSSPixels y_offset { 0 };
+
+        void clear()
+        {
+            current_boxes.clear();
+            current_width = 0;
+        }
+    };
+
+    struct BlockMarginState {
+        Vector<CSSPixels> current_collapsible_margins;
+        Function<void(CSSPixels)> block_container_y_position_update_callback;
+        bool box_last_in_flow_child_margin_bottom_collapsed { false };
+
+        void add_margin(CSSPixels margin)
+        {
+            current_collapsible_margins.append(margin);
+        }
+
+        void register_block_container_y_position_update_callback(ESCAPING Function<void(CSSPixels)> callback)
+        {
+            block_container_y_position_update_callback = move(callback);
+        }
+
+        CSSPixels current_collapsed_margin() const;
+
+        bool has_block_container_waiting_for_final_y_position() const
+        {
+            return static_cast<bool>(block_container_y_position_update_callback);
+        }
+
+        void update_block_waiting_for_final_y_position() const
+        {
+            if (block_container_y_position_update_callback) {
+                CSSPixels collapsed_margin = current_collapsed_margin();
+                block_container_y_position_update_callback(collapsed_margin);
+            }
+        }
+
+        void reset()
+        {
+            block_container_y_position_update_callback = {};
+            current_collapsible_margins.clear();
+        }
+    };
+
+    Optional<CSSPixels> m_y_offset_of_current_block_container;
+
+    BlockMarginState m_margin_state;
+
+    FloatSideData m_left_floats;
+    FloatSideData m_right_floats;
+
+    bool m_was_notified_after_parent_dimensioned_my_root_box { false };
+};
+
+}