1 slot.set_layout(nil, "text/css")

2

3 local style = execute.chunk{ module = "style", chunk = "_style", params = { style = config.style } }

4

5 local scss = [[

6 @import "../style/mdl/color-definitions";

7 $color-primary: ]] .. style.color.primary .. [[;

8 $color-primary-dark: ]] .. style.color.primary .. [[;

9 $color-primary-contrast: ]] .. style.color.primary_contrast .. [[;

10 $color-accent: ]] .. style.color.accent .. [[;

11 $color-accent-contrast: ]] .. style.color.accent_contrast .. [[;

12 $image-path: "]] .. request.get_absolute_baseurl() .. "static/mdl" .. [[";

13 @import "../style/mdl/material-design-lite"

14 ]]

15

16 local key = extos.crypt(json.export(style.color), "$1$12345678") -- TODO hash function

17 local filename_scss = encode.file_path(WEBMCP_BASE_PATH, 'tmp', "style-" .. key .. ".scss")

18 local filename_css = encode.file_path(WEBMCP_BASE_PATH, 'tmp', "style-" .. key .. ".css")

19

20 local css_file = io.open(filename_css, "r")

21

22 if not config.css then

23 config.css = {}

24 end

25

26 if not config.css[key] then

27 if css_file then

28 config.css[key] = css_file:read("*a")

29 else

30 local scss_file = assert(io.open(filename_scss, "w"))

31 scss_file:write(scss)

32 scss_file:write("\n")

33 scss_file:close()

34

35 local output, err, status = extos.pfilter(nil, "sassc", filename_scss)

36 if status ~= 0 then

37 error(err)

38 end

39 config.css[key] = output

40 local css_file = assert(io.open(filename_css, "w"))

41 css_file:write(config.css[key])

42 css_file:close()

43 end

44 end

45

46 slot.put_into("data", config.css[key])

47