1 --[[--

2 output = -- document/data to be sent to the web browser

3 slot.render_layout()

4

5 This function returns the selected layout after replacing all slot placeholders with the respective slot contents. If slot.set_layout(...) was called with nil as first argument, then no layout will be used, but only the contents of the slot named "data" are returned.

6

7 --]]--

8

9 function slot.render_layout()

10 if slot._current_layout then

11 local layout_file = assert(io.open(

12 encode.file_path(

13 WEBMCP_BASE_PATH,

14 'app',

15 WEBMCP_APP_NAME,

16 '_layout',

17 slot._current_layout .. '.html'

18 ),

19 'r'

20 ))

21 local layout = assert(layout_file:read("*a"))

22 assert(layout_file:close())

23

24 -- render layout

25 layout = string.gsub(layout, "__BASEURL__/?", request.get_relative_baseurl()) -- TODO: find a better placeholder than __BASEURL__ ?

26 layout = string.gsub(layout, '<!%-%- *WEBMCP +SLOT +([^ ]+) *%-%->',

27 function(slot_ident)

28 if #slot.get_content(slot_ident) > 0 then

29 return '<div class="slot_' .. slot_ident .. '" id="slot_' .. slot_ident .. '">' .. slot.get_content(slot_ident).. '</div>'

30 else

31 return ''

32 end

33 end

34 )

35 layout = string.gsub(layout, '<!%-%- *WEBMCP +SLOTNODIV +([^ ]+) *%-%->',

36 function(slot_ident)

37 if #slot.get_content(slot_ident) > 0 then

38 return slot.get_content(slot_ident)

39 else

40 return ''

41 end

42 end

43 )

44 return layout

45 else

46 return slot.get_content("data")

47 end

48 end