Move html rendering to image updater
parent
7d199ad416
commit
08749dd32d
@ -1,31 +1,53 @@
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class AsciicastImageUpdater
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PIXEL_DENSITY = 2
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attr_reader :rasterizer, :image_inspector
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attr_reader :template_renderer, :rasterizer, :image_inspector
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def initialize(rasterizer = Rasterizer.new, image_inspector = ImageInspector.new)
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def initialize(template_renderer, rasterizer = Rasterizer.new, image_inspector = ImageInspector.new)
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@template_renderer = template_renderer
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@rasterizer = rasterizer
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@image_inspector = image_inspector
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end
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def update(asciicast, page_path)
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def update(asciicast)
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Dir.mktmpdir do |dir|
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page_path = "#{dir}/asciicast.html"
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image_path = "#{dir}/#{asciicast.image_filename}"
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rasterizer.generate_image(page_path, image_path, 'png', '.asciinema-player', PIXEL_DENSITY)
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generate_html_file(asciicast, page_path)
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generate_png_file(page_path, image_path)
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image_width, image_height = image_inspector.get_size(image_path)
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File.open(image_path) do |f|
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asciicast.image = f
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end
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update_asciicast(asciicast, image_path, image_width, image_height)
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end
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end
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private
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def generate_html_file(asciicast, path)
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html = template_renderer.render_to_string(
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template: 'asciicasts/screenshot.html.slim',
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layout: 'screenshot',
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locals: { page: BareAsciicastPagePresenter.build(asciicast) },
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)
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width, height = image_inspector.get_size(image_path)
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File.open(path, 'w') { |f| f.write(html) }
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end
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# "display" size is 1/PIXEL_DENSITY of the actual one
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asciicast.image_width = width / PIXEL_DENSITY
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asciicast.image_height = height / PIXEL_DENSITY
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def generate_png_file(page_path, image_path)
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rasterizer.generate_image(page_path, image_path, 'png', '.asciinema-player', PIXEL_DENSITY)
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end
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asciicast.save!
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def update_asciicast(asciicast, image_path, image_width, image_height)
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File.open(image_path) do |f|
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asciicast.image = f
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end
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# "display" size is 1/PIXEL_DENSITY of the actual one
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asciicast.image_width = image_width / PIXEL_DENSITY
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asciicast.image_height = image_height / PIXEL_DENSITY
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asciicast.save!
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end
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end
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