1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/framework/env/slot/render_layout.lua	Sun Oct 25 12:00:00 2009 +0100
     1.3 @@ -0,0 +1,48 @@
     1.4 +--[[--
     1.5 +output =              -- document/data to be sent to the web browser
     1.6 +slot.render_layout()
     1.7 +
     1.8 +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.
     1.9 +
    1.10 +--]]--
    1.11 +
    1.12 +function slot.render_layout()
    1.13 +  if slot._current_layout then
    1.14 +    local layout_file = assert(io.open(
    1.15 +      encode.file_path(
    1.16 +        request.get_app_basepath(),
    1.17 +        'app',
    1.18 +        request.get_app_name(),
    1.19 +        '_layout',
    1.20 +        slot._current_layout .. '.html'
    1.21 +      ),
    1.22 +      'r'
    1.23 +    ))
    1.24 +    local layout = layout_file:read("*a")
    1.25 +    io.close(layout_file)
    1.26 +
    1.27 +    -- render layout
    1.28 +    layout = string.gsub(layout, "__BASEURL__/?", request.get_relative_baseurl())  -- TODO: find a better placeholder than __BASEURL__ ?
    1.29 +    layout = string.gsub(layout, '<!%-%- *WEBMCP +SLOT +([^ ]+) *%-%->', 
    1.30 +      function(slot_ident)
    1.31 +        if #slot.get_content(slot_ident) > 0 then
    1.32 +          return '<div class="slot_' .. slot_ident .. '" id="slot_' .. slot_ident .. '">' .. slot.get_content(slot_ident).. '</div>'
    1.33 +        else
    1.34 +          return ''
    1.35 +        end
    1.36 +      end
    1.37 +    )
    1.38 +    layout = string.gsub(layout, '<!%-%- *WEBMCP +SLOTNODIV +([^ ]+) *%-%->', 
    1.39 +      function(slot_ident)
    1.40 +        if #slot.get_content(slot_ident) > 0 then
    1.41 +          return slot.get_content(slot_ident)
    1.42 +        else
    1.43 +          return ''
    1.44 +        end
    1.45 +      end
    1.46 +    )
    1.47 +    return layout
    1.48 +  else
    1.49 +    return slot.get_content("data")
    1.50 +  end
    1.51 +end