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fdbad6284c
Just in time for Serenity's 1st birthday, here is the <blink> element! This patch adds a bunch of different mechanisms to enable partial repaints of the layout tree (LayoutNode::set_needs_display())) It also adds LayoutNode::is_visible(), which can be toggled to prevent a LayoutNode from rendering anything (it still takes up space though.)
52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
#pragma once
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#include <LibHTML/Layout/LayoutNode.h>
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#include <LibHTML/Layout/LineBox.h>
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class Element;
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class LayoutBlock : public LayoutNodeWithStyle {
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public:
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LayoutBlock(const Node*, NonnullRefPtr<StyleProperties>);
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virtual ~LayoutBlock() override;
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virtual const char* class_name() const override { return "LayoutBlock"; }
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virtual void layout() override;
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virtual void render(RenderingContext&) override;
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virtual LayoutNode& inline_wrapper() override;
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bool children_are_inline() const;
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Vector<LineBox>& line_boxes() { return m_line_boxes; }
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const Vector<LineBox>& line_boxes() const { return m_line_boxes; }
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virtual HitTestResult hit_test(const Point&) const override;
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private:
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virtual bool is_block() const override { return true; }
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NonnullRefPtr<StyleProperties> style_for_anonymous_block() const;
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void layout_inline_children();
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void layout_block_children();
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void compute_width();
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void compute_position();
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void compute_height();
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Vector<LineBox> m_line_boxes;
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};
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template<typename Callback>
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void LayoutNode::for_each_fragment_of_this(Callback callback)
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{
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auto& block = *containing_block();
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for (auto& line_box : block.line_boxes()) {
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for (auto& fragment : line_box.fragments()) {
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if (callback(fragment) == IterationDecision::Break)
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return;
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}
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}
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}
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