annotate framework/env/slot/render_layout.lua @ 499:b36e366bba2b
Added SHA-3 hashing functions (using compact Keccak code)
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jbe |
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Sun Aug 13 03:22:48 2017 +0200 (2017-08-13) |
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d89813dd4d92 |
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jbe/bsw@0
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1 --[[--
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2 output = -- document/data to be sent to the web browser
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3 slot.render_layout(
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4 layout_ident -- if set, selects layout to be used; otherwise layout set by slot.set_layout(...) is used
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5 )
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6
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7 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.
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8
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9 --]]--
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10
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11 function slot.render_layout(layout_ident)
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12 local layout_ident = layout_ident or slot._current_layout
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13 if layout_ident then
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14 local layout_file = assert(io.open(
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15 encode.file_path(
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16 WEBMCP_BASE_PATH,
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17 'app',
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18 WEBMCP_APP_NAME,
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19 '_layout',
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20 layout_ident .. '.html'
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21 ),
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22 'r'
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23 ))
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24 local layout = assert(layout_file:read("*a"))
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25 assert(layout_file:close())
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26
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27 -- render layout
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28 layout = string.gsub(layout, "__BASEURL__/?", request.get_relative_baseurl()) -- TODO: find a better placeholder than __BASEURL__ ?
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29 layout = string.gsub(layout, '<!%-%- *WEBMCP +SLOT +([^ ]+) *%-%->',
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30 function(slot_ident)
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31 if #slot.get_content(slot_ident) > 0 then
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32 return '<div class="slot_' .. slot_ident .. '" id="slot_' .. slot_ident .. '">' .. slot.get_content(slot_ident).. '</div>'
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33 else
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34 return ''
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35 end
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36 end
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37 )
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38 layout = string.gsub(layout, '<!%-%- *WEBMCP +SLOTNODIV +([^ ]+) *%-%->',
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39 function(slot_ident)
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40 if #slot.get_content(slot_ident) > 0 then
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41 return slot.get_content(slot_ident)
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42 else
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43 return ''
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44 end
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45 end
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46 )
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47 return layout
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48 else
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49 return slot.get_content("data")
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50 end
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51 end
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