21 lines
599 B
Ruby
21 lines
599 B
Ruby
# frozen_string_literal: true
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module UninterlacePngConcern
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extend ActiveSupport::Concern
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private
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def uninterlace_png(uploaded_file)
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if uploaded_file&.content_type == 'image/png' && interlaced?(uploaded_file.tempfile.to_path)
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chunky_img = ChunkyPNG::Image.from_io(uploaded_file.to_io)
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chunky_img.save(uploaded_file.tempfile.to_path, interlace: false)
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uploaded_file.tempfile.reopen(uploaded_file.tempfile.to_path, 'rb')
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end
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uploaded_file
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end
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def interlaced?(png_path)
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png = MiniMagick::Image.open(png_path)
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png.data["interlace"] != "None"
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end
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end
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