| rev | line source | 
| jbe/bsw@0 | 1 --[[-- | 
| jbe/bsw@0 | 2 ui.link{ | 
| jbe/bsw@0 | 3   external  = external,   -- external URL | 
| jbe/bsw@0 | 4   static    = static,     -- URL relative to the static file directory | 
| jbe/bsw@0 | 5   module    = module,     -- module name | 
| jbe/bsw@0 | 6   view      = view,       -- view name | 
| jbe/bsw@0 | 7   action    = action,     -- action name | 
| jbe@53 | 8   attr      = attr,       -- for views: table of HTML attributes | 
| jbe@53 | 9   a_attr    = a_attr,     -- for actions: table of HTML attributes for the "a" tag | 
| jbe@53 | 10   form_attr = form_attr,  -- for actions: table of HTML attributes for the "form" tag | 
| jbe/bsw@0 | 11   id        = id,         -- optional id to be passed to the view or action to select a particular data record | 
| jbe/bsw@0 | 12   params    = params,     -- optional parameters to be passed to the view or action | 
| jbe/bsw@0 | 13   routing   = routing,    -- optional routing information for action links, as described for ui.form{...} | 
| jbe@79 | 14   anchor    = anchor,     -- for views: anchor in destination URL | 
| jbe/bsw@0 | 15   text      = text,       -- link text | 
| jbe@223 | 16   content   = content     -- link content (overrides link text, except for submit buttons for action calls without JavaScript) | 
| jbe/bsw@0 | 17 } | 
| jbe/bsw@0 | 18 | 
| jbe/bsw@0 | 19 This function inserts a link into the active slot. It may be either an internal application link ('module' given and 'view' or 'action' given), or a link to an external web page ('external' given), or a link to a file in the static file directory of the application ('static' given). | 
| jbe/bsw@0 | 20 | 
| jbe/bsw@0 | 21 --]]-- | 
| jbe/bsw@0 | 22 | 
| jbe/bsw@0 | 23 function ui.link(args) | 
| jbe/bsw@0 | 24   local args = args or {} | 
| jbe/bsw@4 | 25   local content = args.content or args.text | 
| jbe/bsw@0 | 26   assert(content, "ui.link{...} needs a text.") | 
| jbe/bsw@0 | 27   local function wrapped_content() | 
| jbe/bsw@11 | 28     if args.image then | 
| jbe/bsw@11 | 29       ui.image(args.image) | 
| jbe/bsw@11 | 30     end | 
| jbe/bsw@0 | 31     if type(content) == "function" then | 
| jbe/bsw@0 | 32       content() | 
| jbe/bsw@0 | 33     else | 
| jbe/bsw@0 | 34       slot.put(encode.html(content)) | 
| jbe/bsw@0 | 35     end | 
| jbe/bsw@0 | 36   end | 
| jbe/bsw@0 | 37   if args.action then | 
| jbe/bsw@0 | 38     local form_attr   = table.new(args.form_attr) | 
| jbe/bsw@0 | 39     local form_id | 
| jbe/bsw@0 | 40     if form_attr.id then | 
| jbe/bsw@0 | 41       form_id = form_attr.id | 
| jbe/bsw@0 | 42     else | 
| jbe/bsw@0 | 43       form_id = ui.create_unique_id() | 
| jbe/bsw@0 | 44     end | 
| jbe/bsw@0 | 45     local quoted_form_id = encode.json(form_id) | 
| jbe/bsw@0 | 46     form_attr.id      = form_id | 
| jbe/bsw@0 | 47     local a_attr      = table.new(args.attr) | 
| jbe/bsw@0 | 48     a_attr.href       = "#" | 
| jbe/bsw@0 | 49     a_attr.onclick    = | 
| jbe@52 | 50       "var f = document.getElementById(" .. quoted_form_id .. "); if (! f.onsubmit || f.onsubmit() != false) { f.submit() }; return false;" | 
| jbe/bsw@0 | 51     ui.form{ | 
| jbe/bsw@0 | 52       external = args.external, | 
| jbe/bsw@0 | 53       module   = args.module or request.get_module(), | 
| jbe/bsw@0 | 54       action   = args.action, | 
| jbe/bsw@0 | 55       id       = args.id, | 
| jbe/bsw@0 | 56       params   = args.params, | 
| jbe/bsw@0 | 57       routing  = args.routing, | 
| jbe/bsw@0 | 58       attr     = form_attr, | 
| jbe/bsw@0 | 59       content  = function() | 
| jbe/bsw@0 | 60         ui.submit{ text = args.text, attr = args.submit_attr } | 
| jbe/bsw@0 | 61       end | 
| jbe/bsw@0 | 62     } | 
| jbe/bsw@0 | 63     ui.script{ | 
| jbe/bsw@0 | 64       type = "text/javascript", | 
| jbe/bsw@0 | 65       script = ( | 
| jbe/bsw@0 | 66         "document.getElementById(" .. | 
| jbe/bsw@0 | 67         quoted_form_id .. | 
| jbe/bsw@0 | 68         ").style.display = 'none'; document.write(" .. | 
| jbe/bsw@0 | 69         encode.json( | 
| jbe/bsw@0 | 70           slot.use_temporary( | 
| jbe/bsw@0 | 71             function() | 
| jbe/bsw@0 | 72               ui.tag{ | 
| jbe/bsw@0 | 73                 tag     = "a", | 
| jbe/bsw@0 | 74                 attr    = a_attr, | 
| jbe/bsw@0 | 75                 content = wrapped_content | 
| jbe/bsw@0 | 76               } | 
| jbe/bsw@0 | 77             end | 
| jbe/bsw@0 | 78           ) | 
| jbe/bsw@0 | 79         ) .. | 
| jbe/bsw@0 | 80         ");" | 
| jbe/bsw@0 | 81       ) | 
| jbe/bsw@0 | 82     } | 
| jbe/bsw@0 | 83   else | 
| jbe/bsw@0 | 84     -- TODO: support content function | 
| jbe/bsw@0 | 85     local a_attr = table.new(args.attr) | 
| jbe/bsw@0 | 86     a_attr.href = encode.url{ | 
| jbe/bsw@0 | 87       external  = args.external, | 
| jbe/bsw@0 | 88       static    = args.static, | 
| jbe/bsw@0 | 89       module    = args.module or request.get_module(), | 
| jbe/bsw@0 | 90       view      = args.view, | 
| jbe/bsw@0 | 91       id        = args.id, | 
| jbe/bsw@0 | 92       params    = args.params, | 
| jbe@79 | 93       anchor    = args.anchor | 
| jbe/bsw@0 | 94     } | 
| jbe/bsw@0 | 95     return ui.tag{ tag  = "a", attr = a_attr, content = wrapped_content } | 
| jbe/bsw@0 | 96   end | 
| jbe/bsw@0 | 97 end |