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1 --[[--
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2 ui.form_element(
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3 args, -- external arguments
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4 { -- options for this function call
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5 fetch_value = fetch_value_flag, -- true causes automatic determination of args.value, if nil
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6 fetch_record = fetch_record_flag, -- true causes automatic determination of args.record, if nil
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7 disable_label_for_id = disable_label_for_id_flag, -- true suppresses automatic setting of args.attr.id for a HTML label_for reference
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8 },
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9 function(args)
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10 ... -- program code
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11 end
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12 )
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13
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14 This function helps other form helpers by preprocessing arguments passed to the helper, e.g. fetching a value from a record stored in a state-table of the currently active slot.
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15
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16 --]]--
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17
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18 -- TODO: better documentation
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19
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20 function ui.form_element(args, extra_args, func)
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21 local args = table.new(args)
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22 if extra_args then
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23 for key, value in pairs(extra_args) do
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24 args[key] = value
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25 end
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26 end
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jbe/bsw@0
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27 local slot_state = slot.get_state_table()
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28 args.html_name = args.html_name or args.name
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jbe/bsw@0
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29 if args.fetch_value then
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30 if args.value == nil then
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31 if not args.record and slot_state then
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32 args.record = slot_state.form_record
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33 end
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34 if args.record then
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35 args.value = args.record[args.name]
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36 end
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37 else
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38 args.value = nihil.lower(args.value)
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39 end
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40 elseif args.fetch_record then
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41 if not args.record and slot_state then
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42 args.record = slot_state.form_record
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43 end
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44 end
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45 if
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46 args.html_name and
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47 not args.readonly and
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48 slot_state.form_readonly == false
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49 then
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50 args.readonly = false
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jbe/bsw@0
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51 local prefix
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52 if args.html_name_prefix == nil then
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53 prefix = slot_state.html_name_prefix
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54 else
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55 prefix = args.html_name_prefix
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56 end
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57 if prefix then
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58 args.html_name = prefix .. args.html_name
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59 end
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60 else
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61 args.readonly = true
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62 end
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jbe/bsw@0
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63 if args.label then
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64 if not args.disable_label_for_id then
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65 if not args.attr then
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66 args.attr = { id = ui.create_unique_id() }
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67 elseif not args.attr.id then
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68 args.attr.id = ui.create_unique_id()
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69 end
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70 end
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jbe/bsw@0
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71 if not args.label_attr then
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72 args.label_attr = { class = "ui_field_label" }
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jbe/bsw@0
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73 elseif not args.label_attr.class then
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74 args.label_attr.class = "ui_field_label"
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75 end
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76 end
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77 ui.container{
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78 auto_args = args,
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79 content = function() return func(args) end
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80 }
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81 end
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