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jbe/bsw@11
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1 --[[--
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jbe@12
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2 ui._partial_load_js(
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jbe@12
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3 {
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jbe@12
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4 module = module,
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jbe@12
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5 view = view,
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jbe@12
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6 id = id,
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jbe@12
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7 params = params,
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jbe@12
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8 target = target
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9 },
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jbe@12
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10 mode = mode
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jbe/bsw@11
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11 }
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jbe/bsw@11
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12
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jbe@12
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13 This function is not supposed to be called directly, but only to be used by
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jbe@12
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14 ui.link{...} and ui.form{...}.
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15
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jbe@12
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16 It returns a JavaScript which can be used for onclick or onsubmit
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jbe@12
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17 attributes in HTML to cause a partial load of contents. Behaviour differs
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jbe@12
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18 for the following cases:
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jbe@12
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19 a) module, view and target (and optionally id) are given as parameters
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jbe@12
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20 b) neither module, view, id, nor target are given as parameters
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21
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jbe@12
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22 In case of a) the function will create a JavaScript which requests the
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23 given view (optionally with the given id and params) as JSON data.
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24
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jbe@12
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25 In case of b) the function will create a JavaScript requesting the view
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jbe@12
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26 specified by the next outer ui.partial{...} call as JSON data. Request
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jbe@12
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27 parameters specified by previous calls of add_partial_param_names({...})
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jbe@12
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28 are copied from the GET/POST parameters of the current request, while they
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jbe@12
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29 can be overwritten using the "params" argument to this function.
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jbe/bsw@11
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30
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jbe@12
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31 If there is no outer ui.partial{...} call in case b), then this function
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jbe@12
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32 returns nil.
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jbe@12
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33
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jbe@12
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34 The called URL contains "_webmcp_json_slots[]" as GET parameters to
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jbe@12
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35 indicate that slot contents should be returned as a JSON object, instead of
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36 being inserted to a page layout.
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37
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38 TODO: Currently the slots requested are "default", "trace" and
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39 "system_error". The target for the slot "default" is passed as argument to
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jbe@12
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40 this function or to ui.partial{...}. The targets for the slots "trace" and
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jbe@12
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41 "system_error" are "trace" and "system_error". This is hardcoded and should
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42 be possible to change in future. The JavaScript will fail, if there are no
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43 HTML elements with id's "trace" and "system_error".
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44
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jbe@12
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45 A mode can be passed as second parameter to this function. When this mode
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jbe@12
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46 is "nil" or non existent, the function creates JavaScript code to be used
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jbe@12
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47 as onclick event for normal (GET) links. When mode is set to "form_normal"
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jbe@12
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48 or "form_action", the returned code can be used as onsubmit event of web
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jbe@12
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49 forms. "form_normal" is used when the form calls a view, "form_action" is
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jbe@12
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50 used when the form calls an action.
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jbe/bsw@11
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51
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jbe/bsw@11
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52 --]]--
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jbe/bsw@11
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53
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jbe/bsw@11
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54 function ui._partial_load_js(args, mode)
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jbe/bsw@11
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55 local args = args or {}
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jbe/bsw@11
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56 local module
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jbe/bsw@11
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57 local view
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jbe/bsw@11
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58 local id
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jbe/bsw@11
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59 local params = {}
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jbe/bsw@11
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60 local target
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jbe/bsw@11
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61 if args.view and args.target then
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jbe/bsw@11
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62 module = args.module
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jbe/bsw@11
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63 view = args.view
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jbe/bsw@11
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64 id = args.id
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jbe/bsw@11
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65 target = args.target
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jbe/bsw@11
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66 elseif not args.view and not args.target then
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jbe/bsw@11
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67 if not ui._partial_state then
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jbe/bsw@11
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68 return nil
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jbe/bsw@11
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69 end
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jbe/bsw@11
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70 module = ui._partial_state.module
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jbe/bsw@11
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71 view = ui._partial_state.view
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jbe/bsw@11
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72 id = ui._partial_state.id
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jbe/bsw@11
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73 target = ui._partial_state.target
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jbe/bsw@11
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74 else
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jbe/bsw@11
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75 error("Unexpected arguments passed to ui._partial_load_js{...}")
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jbe/bsw@11
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76 end
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jbe/bsw@11
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77
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jbe/bsw@11
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78 if ui._partial_state then
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jbe@12
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79 -- TODO: do this only if args.view and args.target are unset!?
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jbe/bsw@11
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80 if ui._partial_state.params then
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jbe/bsw@11
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81 for key, value in pairs(ui._partial_state.params) do
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jbe/bsw@11
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82 params[key] = value
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83 end
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jbe/bsw@11
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84 end
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jbe/bsw@11
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85 for param_name, dummy in pairs(ui._partial_state.param_name_hash) do
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jbe/bsw@11
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86 params[param_name] = cgi.params[param_name]
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jbe/bsw@11
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87 end
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jbe/bsw@11
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88 end
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jbe/bsw@11
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89 if args.params then
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jbe/bsw@11
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90 for key, value in pairs(args.params) do
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jbe/bsw@11
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91 params[key] = value
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jbe/bsw@11
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92 end
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jbe/bsw@11
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93 end
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jbe/bsw@11
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94 local encoded_url = encode.json(
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jbe/bsw@11
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95 encode.url{
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jbe/bsw@11
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96 module = module,
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jbe/bsw@11
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97 view = view,
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jbe/bsw@11
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98 id = id,
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jbe/bsw@11
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99 params = params
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jbe/bsw@11
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100 }
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jbe/bsw@11
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101 )
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jbe/bsw@11
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102
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jbe/bsw@11
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103 if mode == "form_normal" then
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jbe/bsw@11
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104 -- NOTE: action in "action_mode" refers to WebMCP actions, while action
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jbe/bsw@11
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105 -- in "this.action" refers to the action attribute of HTML forms
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jbe/bsw@11
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106 slot.put('this.action = ', encoded_url, '; ')
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jbe/bsw@11
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107 end
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jbe/bsw@11
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108
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jbe/bsw@11
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109 return slot.use_temporary(function()
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jbe/bsw@11
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110 slot.put(
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jbe/bsw@11
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111 'partialMultiLoad({',
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jbe/bsw@11
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112 -- mapping:
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jbe/bsw@11
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113 '"trace": "trace", "system_error": "system_error", ',
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jbe/bsw@11
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114 encode.json(target), ': "default" }, ',
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jbe/bsw@11
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115 -- tempLoadingContents:
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jbe/bsw@11
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116 '{}, ',
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jbe/bsw@11
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117 -- failureContents:
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jbe/bsw@11
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118 '"error", ',
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jbe/bsw@11
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119 -- url:
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jbe/bsw@11
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120 (mode == "form_normal" or mode == "form_action") and (
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jbe/bsw@11
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121 'this'
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jbe/bsw@11
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122 ) or (
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jbe/bsw@11
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123 encoded_url
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jbe/bsw@11
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124 ), ', ',
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jbe/bsw@11
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125 -- urlParams:
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jbe/bsw@11
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126 '"_webmcp_json_slots[]=default&_webmcp_json_slots[]=trace&_webmcp_json_slots[]=system_error", ',
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jbe/bsw@11
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127 -- postParams:
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jbe/bsw@11
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128 '{}, ',
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jbe/bsw@11
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129 -- successHandler:
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jbe/bsw@11
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130 'function() {}, ',
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jbe/bsw@11
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131 -- failureHandler:
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jbe/bsw@11
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132 'function() {} ',
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jbe/bsw@11
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133 '); ',
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jbe/bsw@11
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134 'return false;'
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jbe/bsw@11
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135 )
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jbe/bsw@11
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136 end)
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jbe/bsw@11
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137 end
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