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--[[
FFLuCI - Configuration Bind Interface
Description:
Offers an interface for binding confiugration values to certain
data types. Supports value and range validation and basic dependencies.
FileId:
$Id$
License:
Copyright 2008 Steven Barth <steven@midlink.org>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
]]--
module("ffluci.cbi", package.seeall)
require("ffluci.template")
require("ffluci.util")
local Template = ffluci.template.Template
local class = ffluci.util.class
local instanceof = ffluci.util.instanceof
-- Node pseudo abstract class
Node = class()
function Node.__init__(self, title, description)
self.children = {}
self.title = title
self.description = description
self.template = "cbi/node"
end
function Node.append(self, obj)
table.insert(self.children, obj)
end
function Node.render(self)
ffluci.template.render(self.template, self)
end
--[[
Map - A map describing a configuration file
]]--
Map = class(Node)
function Map.__init__(self, config, ...)
Node.__init__(self, ...)
self.config = config
self.template = "cbi/map"
end
function Map.section(self, class, ...)
if instanceof(class, AbstractSection) then
local obj = class(...)
obj.map = self.config
table.insert(self.children, obj)
return obj
else
error("class must be a descendent of AbstractSection")
end
end
--[[
AbstractSection
]]--
AbstractSection = class(Node)
function AbstractSection.__init__(self, sectiontype, ...)
Node.__init__(self, ...)
self.sectiontype = sectiontype
end
function AbstractSection.option(self, class, ...)
if instanceof(class, AbstractValue) then
local obj = class(...)
obj.map = self.map
table.insert(self.children, obj)
return obj
else
error("class must be a descendent of AbstractValue")
end
end
--[[
NamedSection - A fixed configuration section defined by its name
]]--
NamedSection = class(AbstractSection)
function NamedSection.__init__(self, section, ...)
AbstractSection.__init__(self, ...)
self.template = "cbi/nsection"
self.section = section
end
function NamedSection.option(self, ...)
local obj = AbstractSection.option(self, ...)
obj.section = self.section
return obj
end
--[[
TypedSection - A (set of) configuration section(s) defined by the type
addremove: Defines whether the user can add/remove sections of this type
anonymous: Allow creating anonymous sections
valid: a table with valid names or a function returning nil if invalid
]]--
TypedSection = class(AbstractSection)
function TypedSection.__init__(self, ...)
AbstractSection.__init__(self, ...)
self.template = "cbi/tsection"
self.addremove = true
self.anonymous = false
self.valid = nil
end
--[[
AbstractValue - An abstract Value Type
null: Value can be empty
valid: A function returning nil if invalid
depends: A table of option => value pairs of which one must be true
default: The default value
]]--
AbstractValue = class(Node)
function AbstractValue.__init__(self, option, ...)
Node.__init__(self, ...)
self.option = option
self.valid = nil
self.depends = nil
self.default = nil
end
--[[
Value - A one-line value
maxlength: The maximum length
isnumber: The value must be a valid (floating point) number
isinteger: The value must be a valid integer
]]--
Value = class(AbstractValue)
function Value.__init__(self, ...)
AbstractValue.__init__(self, ...)
self.template = "cbi/value"
self.maxlength = nil
self.isnumber = false
self.isinteger = false
end
--[[
ListValue - A one-line value predefined in a list
]]--
ListValue = class(AbstractValue)
function ListValue.__init__(self, ...)
AbstractValue.__init__(self, ...)
self.template = "cbi/value"
self.list = {}
end
function ListValue.addValue(self, key, val)
val = val or key
self.list[key] = val
end
|
