annotate framework/env/ui/field/file.lua @ 153:c8c91216255f
Correct treatment of top-level null values in JSON parser
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jbe |
| date |
Thu Jul 31 01:21:33 2014 +0200 (2014-07-31) |
| parents |
36ebcae1cde3 |
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line source |
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jbe@56
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1 --[[--
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2 ui.field.file{
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3 ... -- generic ui.field.* arguments, as described for ui.autofield{...}
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4 }
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5
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6 This function inserts a field for uploading a file in the active slot. For read-only forms this function does nothing. For description of the generic field helper arguments, see help for ui.autofield{...}.
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7
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8 --]]--
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9
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10 function ui.field.file(args)
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11 ui.form_element(args, nil, function(args)
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12 if args.readonly then
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13 -- nothing
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14 else
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15 if not slot.get_state_table().form_file_upload then
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16 error('Parameter "file_upload" of ui.form{...} must be set to true to allow file uploads.')
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17 end
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18 local attr = table.new(args.attr)
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19 attr.type = "file"
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20 attr.name = args.html_name
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21 ui.tag{ tag = "input", attr = attr }
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22 end
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23 end)
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24 end
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