author | Matthew Wild <mwild1@gmail.com> |
Fri, 22 Jan 2010 14:58:31 +0000 | |
changeset 2488 | 08bfd7c96531 |
parent 2219 | 9e1c6b6a2ee4 |
child 2923 | b7049746bd29 |
permissions | -rw-r--r-- |
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-- Prosody IM |
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-- Copyright (C) 2008-2009 Matthew Wild |
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-- Copyright (C) 2008-2009 Waqas Hussain |
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-- |
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-- This project is MIT/X11 licensed. Please see the |
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-- COPYING file in the source package for more information. |
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-- |
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local setmetatable = setmetatable; |
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local pairs, ipairs = pairs, ipairs; |
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local tostring, type = tostring, type; |
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local t_concat = table.concat; |
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local st = require "util.stanza"; |
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module "dataforms" |
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local xmlns_forms = 'jabber:x:data'; |
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local form_t = {}; |
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local form_mt = { __index = form_t }; |
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function new(layout) |
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return setmetatable(layout, form_mt); |
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end |
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function form_t.form(layout, data, formtype) |
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local form = st.stanza("x", { xmlns = xmlns_forms, type = formtype or "form" }); |
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if layout.title then |
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form:tag("title"):text(layout.title):up(); |
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end |
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if layout.instructions then |
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form:tag("instructions"):text(layout.instructions):up(); |
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end |
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for n, field in ipairs(layout) do |
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local field_type = field.type or "text-single"; |
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-- Add field tag |
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form:tag("field", { type = field_type, var = field.name, label = field.label }); |
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local value = (data and data[field.name]) or field.value; |
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if value then |
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-- Add value, depending on type |
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if field_type == "hidden" then |
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if type(value) == "table" then |
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-- Assume an XML snippet |
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form:tag("value") |
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:add_child(value) |
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:up(); |
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else |
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form:tag("value"):text(tostring(value)):up(); |
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end |
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elseif field_type == "boolean" then |
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form:tag("value"):text((value and "1") or "0"):up(); |
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elseif field_type == "fixed" then |
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|
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elseif field_type == "jid-multi" then |
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for _, jid in ipairs(value) do |
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form:tag("value"):text(jid):up(); |
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end |
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elseif field_type == "jid-single" then |
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form:tag("value"):text(value):up(); |
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elseif field_type == "text-single" or field_type == "text-private" then |
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form:tag("value"):text(value):up(); |
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elseif field_type == "text-multi" then |
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-- Split into multiple <value> tags, one for each line |
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for line in value:gmatch("([^\r\n]+)\r?\n*") do |
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form:tag("value"):text(line):up(); |
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end |
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elseif field_type == "list-single" then |
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for _, val in ipairs(value) do |
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if type(val) == "table" then |
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form:tag("option", { label = val.label }):tag("value"):text(val.value):up():up(); |
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else |
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form:tag("option", { label= val }):tag("value"):text(tostring(val)):up():up(); |
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end |
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end |
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end |
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end |
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if field.required then |
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form:tag("required"):up(); |
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end |
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-- Jump back up to list of fields |
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form:up(); |
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end |
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return form; |
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end |
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local field_readers = {}; |
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function form_t.data(layout, stanza) |
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local data = {}; |
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for field_tag in stanza:childtags() do |
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local field_type; |
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for n, field in ipairs(layout) do |
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if field.name == field_tag.attr.var then |
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field_type = field.type; |
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break; |
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end |
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end |
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|
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local reader = field_readers[field_type]; |
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if reader then |
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data[field_tag.attr.var] = reader(field_tag); |
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end |
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|
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end |
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return data; |
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end |
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field_readers["text-single"] = |
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function (field_tag) |
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local value = field_tag:child_with_name("value"); |
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if value then |
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return value[1]; |
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end |
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end |
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|
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field_readers["text-private"] = |
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field_readers["text-single"]; |
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field_readers["jid-single"] = |
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field_readers["text-single"]; |
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field_readers["jid-multi"] = |
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function (field_tag) |
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local result = {}; |
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for value_tag in field_tag:childtags() do |
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if value_tag.name == "value" then |
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result[#result+1] = value_tag[1]; |
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end |
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end |
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return result; |
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end |
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field_readers["text-multi"] = |
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function (field_tag) |
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local result = {}; |
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for value_tag in field_tag:childtags() do |
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if value_tag.name == "value" then |
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result[#result+1] = value_tag[1]; |
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end |
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end |
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return t_concat(result, "\n"); |
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end |
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|
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field_readers["list-single"] = |
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field_readers["text-single"]; |
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field_readers["boolean"] = |
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function (field_tag) |
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local value = field_tag:child_with_name("value"); |
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if value then |
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if value[1] == "1" or value[1] == "true" then |
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return true; |
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else |
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return false; |
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end |
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end |
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end |
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|
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field_readers["hidden"] = |
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function (field_tag) |
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local value = field_tag:child_with_name("value"); |
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if value then |
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return value[1]; |
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end |
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end |
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return _M; |
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--[=[ |
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|
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Layout: |
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{ |
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|
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title = "MUC Configuration", |
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instructions = [[Use this form to configure options for this MUC room.]], |
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|
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{ name = "FORM_TYPE", type = "hidden", required = true }; |
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{ name = "field-name", type = "field-type", required = false }; |
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} |
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--]=] |