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LibWeb+WebContent: Forbid access to underlying type of CSSPixels
Although DistinctNumeric, which is supposed to abstract the underlying type, was used to represent CSSPixels, we have a whole bunch of places in the layout code that assume CSSPixels::value() returns a floating-point type. This assumption makes it difficult to replace the underlying type in CSSPixels with a non-floating type. To make it easier to transition CSSPixels to fixed-point math, one step we can take is to prevent access to the underlying type using value() and instead use explicit conversions with the to_float(), to_double(), and to_int() methods.
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5a54c686a7
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147c3b3d97
43 changed files with 340 additions and 220 deletions
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@ -136,7 +136,7 @@ CSSPixels LineBuilder::y_for_float_to_be_inserted_here(Box const& box)
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bool LineBuilder::should_break(CSSPixels next_item_width)
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{
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if (!isfinite(m_available_width_for_current_line.value()))
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if (!isfinite(m_available_width_for_current_line.to_double()))
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return false;
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auto const& line_boxes = m_containing_block_state.line_boxes;
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@ -228,7 +228,7 @@ void LineBuilder::update_last_line()
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if (length_percentage->is_length())
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fragment_baseline += length_percentage->length().to_px(fragment.layout_node());
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else if (length_percentage->is_percentage())
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fragment_baseline += static_cast<double>(length_percentage->percentage().as_fraction()) * line_height;
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fragment_baseline += length_percentage->percentage().as_fraction() * line_height.to_double();
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}
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line_box_baseline = max(line_box_baseline, fragment_baseline);
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@ -282,7 +282,7 @@ void LineBuilder::update_last_line()
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auto vertical_align_amount = length_percentage->length().to_px(fragment.layout_node());
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new_fragment_y = y_value_for_alignment(CSS::VerticalAlign::Baseline) - vertical_align_amount;
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} else if (length_percentage->is_percentage()) {
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auto vertical_align_amount = static_cast<double>(length_percentage->percentage().as_fraction()) * m_context.containing_block().line_height();
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auto vertical_align_amount = length_percentage->percentage().as_fraction() * m_context.containing_block().line_height().to_double();
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new_fragment_y = y_value_for_alignment(CSS::VerticalAlign::Baseline) - vertical_align_amount;
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}
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}
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@ -310,7 +310,7 @@ void LineBuilder::update_last_line()
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if (length_percentage->is_length())
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bottom_of_inline_box += length_percentage->length().to_px(fragment.layout_node());
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else if (length_percentage->is_percentage())
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bottom_of_inline_box += static_cast<double>(length_percentage->percentage().as_fraction()) * m_context.containing_block().line_height();
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bottom_of_inline_box += length_percentage->percentage().as_fraction() * m_context.containing_block().line_height().to_double();
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}
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}
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