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format.rb
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format.rb
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# -*- encoding : utf-8 -*-
class Card
class Format
DEPRECATED_VIEWS = { :view=>:open, :card=>:open, :line=>:closed, :bare=>:core, :naked=>:core }
INCLUSION_MODES = { :closed=>:closed, :closed_content=>:closed, :edit=>:edit,
:layout=>:layout, :new=>:edit, :setup=>:edit, :normal=>:normal, :template=>:template } #should be set in views
cattr_accessor :ajax_call, :registered
[ :perms, :denial_views, :closed_views, :error_codes, :view_tags, :aliases ].each do |acc|
cattr_accessor acc
self.send "#{acc}=", {}
end
attr_reader :card, :root, :parent, :main_opts
attr_accessor :form, :error_status, :inclusion_opts
class << self
@@registered = []
def register format
@@registered << format.to_s
end
def format_class_name format
format = format.to_s
format = '' if format == 'base'
format = @@aliases[ format ] if @@aliases[ format ]
"#{ format.camelize }Format"
end
def extract_class_vars view, opts
return unless opts.present?
perms[view] = opts.delete(:perms) if opts[:perms]
error_codes[view] = opts.delete(:error_code) if opts[:error_code]
denial_views[view] = opts.delete(:denial) if opts[:denial]
closed_views[view] = opts.delete(:closed) if opts[:closed]
if tags = opts.delete(:tags)
Array.wrap(tags).each do |tag|
view_tags[view] ||= {}
view_tags[view][tag] = true
end
end
end
def new card, opts={}
if self != Format
super
else
klass = Card.const_get format_class_name( opts[:format] || :html )
self == klass ? super : klass.new( card, opts )
end
end
def tagged view, tag
view and tag and view_tags = @@view_tags[view.to_sym] and view_tags[tag.to_sym]
end
def format_ancestry
ancestry = [ self ]
unless self == Card::Format
ancestry = ancestry + superclass.format_ancestry
end
ancestry
end
def max_depth
Card.config.max_depth
end
end
#~~~~~ INSTANCE METHODS
def initialize card, opts={}
@card = card or raise Card::Error, "format initialized without card"
opts.each do |key, value|
instance_variable_set "@#{key}", value
end
@mode ||= :normal
@depth ||= 0
@root ||= self
@context_names = get_context_names
include_set_format_modules
self
end
def get_context_names
case
when @context_names
part_keys = @card.cardname.part_names.map &:key
@context_names.reject { |n| !part_keys.include? n.key }
when params[:slot]
context_name_list = params[:slot][:name_context].to_s
context_name_list.split(',').map &:to_name
else
[]
end
end
def include_set_format_modules
self.class.format_ancestry.reverse.each do |klass|
card.set_format_modules( klass ).each do |m|
singleton_class.send :include, m
end
end
end
def inclusion_defaults nested_card
@inclusion_defaults ||= begin
defaults = get_inclusion_defaults(nested_card).clone
defaults.merge! @inclusion_opts if @inclusion_opts
defaults
end
end
def get_inclusion_defaults nested_card
{ :view => :name }
end
def params
Env.params
end
def controller
Env[:controller] ||= CardController.new
end
def session
Env.session
end
def showname title=nil
if title
title.to_name.to_absolute_name(card.cardname).to_show *@context_names
else
@showname ||= card.cardname.to_show *@context_names
end
end
def main?
@depth == 0
end
def focal? # meaning the current card is the requested card
if Env.ajax?
@depth == 0
else
main?
end
end
def template
@template ||= begin
c = controller
t = ActionView::Base.new c.class.view_paths, {:_routes=>c._routes}, c
t.extend c.class._helpers
t
end
end
def method_missing method, *opts, &proc
case method
when /(_)?(optional_)?render(_(\w+))?/
view = $3 ? $4 : opts.shift
args = opts[0] ? opts.shift.clone : {}
args.merge!( :optional=>true, :default_visibility=>opts.shift) if $2
args[ :skip_permissions ] = true if $1
render view, args
when /^_view_(\w+)/
view = @current_view || $1
unsupported_view view
else
proc = proc { |*a| raw yield *a } if proc
response = root.template.send method, *opts, &proc
String===response ? root.template.raw( response ) : response
end
end
#
# ---------- Rendering ------------
#
def render view, args={}
unless args.delete(:optional) && !show_view?( view, args )
@current_view = view = ok_view canonicalize_view( view ), args
args = default_render_args view, args
with_inclusion_mode view do
Card.with_logging :view, :message=>view, :context=>card.name, :details=>args do
Card::ViewCache.fetch(self, view, args) do
send "_view_#{ view }", args
end
end
end
end
rescue => e
rescue_view e, view
end
def show_view? view, args
default = args.delete(:default_visibility) || :show #FIXME - ugly
view_key = canonicalize_view view
api_option = args["optional_#{ view_key }".to_sym]
case
# args remove option
when api_option == :always ; true
when api_option == :never ; false
# wagneer's choice
when show_views( args ).member?( view_key ) ; true
when hide_views( args ).member?( view_key ) ; false
# args override default
when api_option == :show ; true
when api_option == :hide ; false
# default
else ; default==:show
end
end
def show_views args
parse_view_visibility args[:show]
end
def hide_views args
parse_view_visibility args[:hide]
end
def parse_view_visibility val
case val
when Array; val
when String; val.split(/[\s,]+/)
when NilClass; []
else raise Card::Error, "bad show/hide argument: #{val}"
end.map{ |view| canonicalize_view view }
end
def default_render_args view, a=nil
args = case a
when nil ; {}
when Hash ; a.clone
when Array ; a[0].merge a[1]
else ; raise Card::Error, "bad render args: #{a}"
end
view_key = canonicalize_view view
default_method = "default_#{ view }_args"
if respond_to? default_method
send default_method, args
end
args
end
def rescue_view e, view
if Rails.env =~ /^cucumber|test$/
raise e
else
Rails.logger.info "\nError rendering #{error_cardname} / #{view}: #{e.class} : #{e.message}"
Card::Error.current = e
card.notable_exception_raised
rendering_error e, view
end
end
def error_cardname
card && card.name.present? ? card.name : 'unknown card'
end
def unsupported_view view
"view (#{view}) not supported for #{error_cardname}"
end
def rendering_error exception, view
"Error rendering: #{error_cardname} (#{view} view)"
end
#
# ------------- Sub Format and Inclusion Processing ------------
#
def subformat subcard
subcard = Card.fetch( subcard, :new=>{} ) if String===subcard
sub = self.class.new subcard, :parent=>self, :depth=>@depth+1, :root=>@root,
# FIXME - the following four should not be hard-coded here. need a generalized mechanism
# for attribute inheritance
:context_names=>@context_names, :mode=>@mode, :mainline=>@mainline, :form=>@form
end
def process_content content=nil, opts={}
process_content_object(content, opts).to_s
end
def process_content_object content=nil, opts={}
return content unless card
content = card.raw_content || '' if content.nil?
obj_content = Card::Content===content ? content : Card::Content.new( content, format=self, opts.delete(:content_opts) )
card.update_references( obj_content, refresh=true ) if card.references_expired # I thik we need this generalized
obj_content.process_content_object do |chunk_opts|
prepare_nest chunk_opts.merge(opts) { yield }
end
end
def ok_view view, args={}
return view if args.delete :skip_permissions
approved_view = case
when @depth >= Card.config.max_depth # prevent recursion. @depth tracks subformats
:too_deep
when @@perms[view] == :none # permission skipping specified in view definition
view
when args.delete(:skip_permissions) # permission skipping specified in args
view
when !card.known? && !tagged(view, :unknown_ok) # handle unknown cards (where view not exempt)
view_for_unknown view, args
else # run explicit permission checks
permitted_view view, args
end
args[:denied_view] = view if approved_view != view
if focal? && error_code = @@error_codes[ approved_view ]
root.error_status = error_code
end
approved_view
end
def tagged view, tag
self.class.tagged view, tag
end
def permitted_view view, args
perms_required = @@perms[view] || :read
args[:denied_task] =
if Proc === perms_required
:read if !(perms_required.call self) # read isn't quite right
else
[perms_required].flatten.find { |task| !ok? task }
end
if args[:denied_task]
@@denial_views[view] || :denial
else
view
end
end
def ok? task
task = :create if task == :update && card.new_card?
@ok ||= {}
@ok[task] = card.ok? task if @ok[task].nil?
@ok[task]
end
def view_for_unknown view, args
# note: overridden in HTML
focal? ? :not_found : :missing
end
def canonicalize_view view
unless view.blank?
view_key = view.to_viewname.key.to_sym
DEPRECATED_VIEWS[view_key] || view_key
end
end
def with_inclusion_mode mode
if switch_mode = INCLUSION_MODES[ mode ] and @mode != switch_mode
old_mode, @mode = @mode, switch_mode
@inclusion_defaults = nil
end
result = yield
if old_mode
@inclusion_defaults = nil
@mode = old_mode
end
result
end
def prepare_nest opts
@char_count ||= 0
opts ||= {}
case
when opts.has_key?( :comment ) ; opts[:comment] # as in commented code
when @mode == :closed && @char_count > Card.config.max_char_count ; '' # already out of view
when opts[:inc_name]=='_main' && !Env.ajax? && @depth==0 ; expand_main opts
else
nested_card = Card.fetch opts[:inc_name], :new=>new_inclusion_card_args(opts)
result = nest nested_card, opts
@char_count += result.length if @mode == :closed && result
result
end
end
def expand_main opts
opts.merge! root.main_opts if root.main_opts
legacy_main_opts_tweaks! opts
#opts[:view] ||= :open
with_inclusion_mode :normal do
@mainline = true
result = wrap_main nest( root.card, opts )
@mainline = false
result
end
end
def legacy_main_opts_tweaks! opts
if val=params[:size] and val.present?
opts[:size] = val.to_sym
end
if val=params[:item] and val.present?
opts[:items] = (opts[:items] || {}).reverse_merge :view=>val.to_sym
end
end
def wrap_main content
content #no wrapping in base format
end
def nest nested_card, opts={}
#ActiveSupport::Notifications.instrument('card', message: "nest: #{nested_card.name}, #{opts}") do
opts.delete_if { |k,v| v.nil? }
opts.reverse_merge! inclusion_defaults(nested_card)
sub = nil
if opts[:inc_name] =~ /^_(self)?$/
sub = self
else
sub = subformat nested_card
sub.inclusion_opts = opts[:items] ? opts[:items].clone : {}
end
view = canonicalize_view opts.delete :view
opts[:home_view] = [:closed, :edit].member?(view) ? :open : view
# FIXME: special views should be represented in view definitions
view = case @mode
when :edit
not_ready_for_form = @@perms[view]==:none || nested_card.structure || nested_card.key.blank? # eg {{_self|type}} on new cards
not_ready_for_form ? :blank : :edit_in_form
when :template
:template_rule
when :closed
case
when @@closed_views[view] == true || @@error_codes[view] ; view
when specified_view = @@closed_views[view] ; specified_view
when !nested_card.known? ; :closed_missing
else ; :closed_content
end
else
view
end
sub.render view, opts
#end
end
def get_inclusion_content cardname
content = params[cardname.to_s.gsub(/\+/,'_')]
# CLEANME This is a hack to get it so plus cards re-populate on failed signups
if p = params['subcards'] and card_params = p[cardname.to_s]
content = card_params['content']
end
content if content.present? # why is this necessary? - efm
# probably for blanks? -- older/wiser efm
end
def new_inclusion_card_args options
args = { :name=>options[:inc_name], :type=>options[:type], :supercard=>card }
args.delete(:supercard) if options[:inc_name].strip.blank? # special case. gets absolutized incorrectly. fix in smartname?
if options[:inc_name] =~ /^_main\+/
# FIXME this is a rather hacky (and untested) way to get @superleft to work on new cards named _main+whatever
args[:name] = args[:name].gsub /^_main\+/, '+'
args[:supercard] = root.card
end
if content=get_inclusion_content(options[:inc_name])
args[:content]=content
end
args
end
def default_item_view
:name
end
#
# ------------ LINKS ---------------
#
def add_class options, klass
options[:class] = [ options[:class], klass ].flatten.compact * ' '
end
module Location
#
# page_path takes a Card::Name, adds the format and query string to url_key (site-absolute)
# card_path makes a relative path site-absolute (if not already)
# card_url makes it a full url (if not already)
# TESTME
def page_path title, opts={}
Rails.logger.warn "Pass only Card::Name to page_path #{title.class}, #{title}" unless Card::Name===title
format = opts[:format] ? ".#{opts.delete(:format)}" : ''
action = opts[:action] ? "#{opts.delete(:action)}/" : ''
query = opts.present? ? "?#{opts.to_param}" : ''
card_path "#{action}#{title.to_name.url_key}#{format}#{query}"
end
def card_path rel_path
Rails.logger.warn "Pass only strings to card_path: #{rel_path.class}, #{rel_path}" unless String===rel_path
if rel_path =~ /^\//
rel_path
else
"#{ Wagn.config.relative_url_root }/#{ rel_path }"
end
end
def card_url rel
if rel =~ /^https?\:/
rel
else
"#{ Card::Env[:protocol] }#{ Card::Env[:host] }#{ card_path rel }"
end
end
end
include Location
def unique_id
"#{card.key}-#{Time.now.to_i}-#{rand(3)}"
end
def format_date date, include_time = true
# Must use DateTime because Time doesn't support %e on at least some platforms
if include_time
DateTime.new(date.year, date.mon, date.day, date.hour, date.min, date.sec).strftime("%B %e, %Y %H:%M:%S")
else
DateTime.new(date.year, date.mon, date.day).strftime("%B %e, %Y")
end
end
def add_name_context name=nil
name ||= card.name
@context_names += name.to_name.part_names
@context_names.uniq!
end
end
end