module ChromedriverScreenshot class Page def initialize bounds = row_boundaries @rows = Row.from_boundaries(bounds) end def full_screenshot rows = @rows.map { |row| row.screenshot } page_height = rows.inject(0) do |height, row| height += row.height end page_width = rows.first.width # assume all rows have same width screenshot = ChunkyPNG::Image.new(page_width, page_height) image_row = 0 rows.each do |row| row_height = row.height - 1 (0..row.height - 1).each do |row_y| new_image_row = row.row(row_y) screenshot.replace_row!(image_row + row_y, new_image_row) end image_row += row.height end Base64::encode64(screenshot.to_blob) end private def row_boundaries row_boundary_ary = [] platform = ChromedriverScreenshot::Platforms.platform new_boundary = platform.window_height while new_boundary < platform.page_height row_boundary_ary << new_boundary new_boundary += platform.window_height end row_boundary_ary << platform.page_height end end end