Class: Wunderbar::HtmlMarkup
- Inherits:
-
Overridable
- Object
- BuilderBase
- Overridable
- Wunderbar::HtmlMarkup
- Defined in:
- lib/wunderbar/opal.rb,
lib/wunderbar/script.rb,
lib/wunderbar/backtick.rb,
lib/wunderbar/markdown.rb,
lib/wunderbar/angularjs.rb,
lib/wunderbar/coffeescript.rb,
lib/wunderbar/html-methods.rb,
lib/wunderbar/coderay.rb
Constant Summary collapse
- VOID =
%w( area base br col command embed hr img input keygen link meta param source track wbr )
- HTML5_BLOCK =
%w( # https://developer.mozilla.org/en/HTML/Block-level_elements address article aside audio blockquote br canvas dd div dl fieldset figcaption figcaption figure footer form h1 h2 h3 h4 h5 h6 header hgroup hr noscript ol output p pre section table tfoot ul video )
- HEAD =
%w(title base link style meta)
Class Method Summary collapse
Instance Method Summary collapse
- #_(text = nil, &block) ⇒ Object
- #_!(text) ⇒ Object
- #__(text = nil, &block) ⇒ Object
- #_coderay(*args) ⇒ Object
- #_coffeescript(text) ⇒ Object
- #_exception(*args) ⇒ Object
- #_head(*args, &block) ⇒ Object
- #_html(*args, &block) ⇒ Object
- #_markdown(string) ⇒ Object
- #_math(*args, &block) ⇒ Object
- #_ng_template(attrs = {}, &block) ⇒ Object
- #_ol(*args, &block) ⇒ Object
- #_p(*args, &block) ⇒ Object
- #_pre(*args, &block) ⇒ Object
- #_script(*args, &block) ⇒ Object
- #_svg(*args, &block) ⇒ Object
- #_textarea(*args, &block) ⇒ Object
- #_tr(*args, &block) ⇒ Object
- #_ul(*args, &block) ⇒ Object
- #`(input) ⇒ Object
- #clear! ⇒ Object
- #find_name(name) ⇒ Object
- #html(*args, &block) ⇒ Object
-
#initialize(scope) ⇒ HtmlMarkup
constructor
A new instance of HtmlMarkup.
- #method_missing(name, *args, &block) ⇒ Object
- #proxiable_tag!(name, *args, &block) ⇒ Object
- #tag!(name, *args, &block) ⇒ Object
Methods inherited from Overridable
Methods inherited from BuilderBase
#get_binding, #set_variables_from_params
Constructor Details
#initialize(scope) ⇒ HtmlMarkup
Returns a new instance of HtmlMarkup.
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# File 'lib/wunderbar/html-methods.rb', line 40 def initialize(scope) @_scope = scope @_x = XmlMarkup.new :scope => scope end |
Dynamic Method Handling
This class handles dynamic methods through the method_missing method
#method_missing(name, *args, &block) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 144 def method_missing(name, *args, &block) if name =~ /^_(\w+)(!|\?|)$/ name, flag = $1, $2 elsif @_scope and @_scope.respond_to? name return @_scope.__send__ name, *args, &block else err = NameError.new "undefined local variable or method `#{name}'", name err.set_backtrace caller raise err end if name.sub!(/_$/,'') @_x.spaced! if flag != '!' and respond_to? "_#{name}" return __send__ "_#{name}#{flag}", *args, &block end end name = name.to_s.gsub('_', '-') if flag != '!' if String === args.first and args.first.respond_to? :html_safe? if args.first.html_safe? and not block and args.first =~ /[>&]/ markup = args.shift block = Proc.new {_ {markup}} end end end if flag == '!' @_x.compact! { tag! name, *args, &block } elsif flag == '?' # capture exceptions, produce filtered tracebacks tag!(name, *args) do begin block.call rescue ::Exception => exception = (Hash === args.last)? args.last : {} [:log_level] = 'warn' _exception exception, end end elsif Wunderbar.templates.include? name x = self.class.new({}) instance_variables.each do |ivar| x.instance_variable_set ivar, instance_variable_get(ivar) end if Hash === args.last args.last.each do |name, value| x.instance_variable_set "@#{name}", value end end save_yield = Wunderbar.templates['yield'] begin Wunderbar.templates['yield'] = block if block x.instance_eval &Wunderbar.templates[name] ensure Wunderbar.templates['yield'] = save_yield Wunderbar.templates.delete 'yield' unless save_yield end else tag! name, *args, &block end end |
Class Method Details
.flatten?(children) ⇒ Boolean
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# File 'lib/wunderbar/html-methods.rb', line 408 def self.flatten?(children) # do any of the text nodes need special processing to preserve spacing? flatten = false space = true if children.any? {|child| child.text? and !child.text.strip.empty?} children.each do |child| if child.text? or child.element? unless child.text == '' flatten = true if not space and not child.text =~ /\A\s/ space = (child.text =~ /\s\Z/) end space = true if child.element? and HTML5_BLOCK.include? child.name end end end flatten end |
Instance Method Details
#_(text = nil, &block) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 332 def _(text=nil, &block) unless block if text if text.respond_to? :html_safe? and text.html_safe? _ {text} else @_x.indented_text! text.to_s end end return @_x end children = instance_eval &block if String === children safe = !children.tainted? safe ||= children.html_safe? if children.respond_to? :html_safe? safe &&= defined? Nokogiri ok = safe || defined? Sanitize safe = true if ok and (children.include? '<' or children.include? '&') if defined? Nokogiri::HTML5.fragment doc = Nokogiri::HTML5.fragment(children.to_s) else doc = Nokogiri::HTML.fragment(children.to_s) end Sanitize.new.clean_node! doc.dup.untaint if not safe children = doc.children.to_a # ignore leading whitespace while not children.empty? and children.first.text? break unless children.first.text.strip.empty? children.shift end # gather up candidate head elements pending_head = [] while not children.empty? and children.first.element? break unless (HEAD+['script']).include? children.first.name pending_head << children.shift end # rebuild head element if any candidates were found unless pending_head.empty? head = Nokogiri::XML::Node.new('head', pending_head.first.document) pending_head.each {|child| head << child} children.unshift head end else return @_x.indented_text! children end elsif children.nil? or Wunderbar::Node === children return children end @_x[*children] end |
#_!(text) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 328 def _!(text) @_x.text! text.to_s.chomp end |
#__(text = nil, &block) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 392 def __(text=nil, &block) if text @_x.spaced! @_x.indented_text! text elsif block @_x.spaced! _ &block else @_x.text! "" end end |
#_coderay(*args) ⇒ Object
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# File 'lib/wunderbar/coderay.rb', line 16 def _coderay(*args) # allow arguments in any order, disambiguate based on type lang, string, attrs = :ruby, '', {} args.each do |arg| case arg when Symbol; lang = arg when String; string = arg when Hash; attrs = arg end end base = _{ CodeRay.scan(CDATANode.normalize(string), lang).div } # remove wrapping divs while base.length == 1 and base.first.name == 'div' div = base.first.parent.children.pop div.children.each {|child| child.parent = base.first.parent} base.first.parent.children += base.first.children base = div.children end # add attrs provided to pre element if base.length == 1 and base.first.name == 'pre' base.first.attrs.merge! attrs end end |
#_coffeescript(text) ⇒ Object
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# File 'lib/wunderbar/coffeescript.rb', line 6 def _coffeescript(text) _script CoffeeScript.compile(text) end |
#_exception(*args) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 227 def _exception(*args) exception = args.first if exception.respond_to? :backtrace = (Hash === args.last)? args.last : {} traceback_class = .delete(:traceback_class) traceback_style = .delete(:traceback_style) traceback_style ||= 'background-color:#ff0; margin: 1em 0; ' + 'padding: 1em; border: 4px solid red; border-radius: 1em' text = exception.inspect log_level = .delete(:log_level) || :error Wunderbar.send log_level, text exception.backtrace.each do |frame| next if Wunderbar::CALLERS_TO_IGNORE.any? {|re| frame =~ re} Wunderbar.send log_level, " #{frame}" text += "\n #{frame}" end if traceback_class tag! :pre, text, :class=>traceback_class else tag! :pre, text, :style=>traceback_style end else super end end |
#_head(*args, &block) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 255 def _head(*args, &block) tag!('head', *args) do tag! :meta, :charset => 'utf-8' block.call if block end end |
#_html(*args, &block) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 140 def _html(*args, &block) html(*args, &block) end |
#_markdown(string) ⇒ Object
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# File 'lib/wunderbar/markdown.rb', line 8 def _markdown(string) _{ Kramdown::Document.new(CDATANode.normalize(string)).to_html } end |
#_math(*args, &block) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 279 def _math(*args, &block) args << {} if args.empty? if Hash === args.first args.first['xmlns'] = 'http://www.w3.org/1998/Math/MathML' end proxiable_tag! :math, *args, &block end |
#_ng_template(attrs = {}, &block) ⇒ Object
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# File 'lib/wunderbar/angularjs.rb', line 10 def _ng_template(attrs={}, &block) if attrs.empty? and not block proxiable_tag! :ng_template else attrs[:type] ||= 'text/ng-template' tag! :script, attrs, &block end end |
#_ol(*args, &block) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 308 def _ol(*args, &block) iterable = args.first.respond_to? :each if iterable and (args.length > 1 or not args.first.respond_to? :to_hash) list = args.shift tag!(:ol, *args) {list.each {|arg| _li arg }} else super end end |
#_p(*args, &block) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 262 def _p(*args, &block) if args.length >= 1 and String === args.first and args.first.include? "\n" text = args.shift tag! :p, *args do @_x.indented_text! text end else super end end |
#_pre(*args, &block) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 287 def _pre(*args, &block) args.first.chomp! if String === args.first and args.first.end_with? "\n" @_x.compact! do proxiable_tag! :pre, PreformattedNode, *args, &block end end |
#_script(*args, &block) ⇒ Object
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# File 'lib/wunderbar/opal.rb', line 10 def _script(*args, &block) if block args.unshift Opal.parse(block.to_source(:strip_enclosure => true)) super *args, &nil else super end end |
#_svg(*args, &block) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 273 def _svg(*args, &block) args << {} if args.empty? args.first['xmlns'] = 'http://www.w3.org/2000/svg' if Hash === args.first proxiable_tag! :svg, *args, &block end |
#_textarea(*args, &block) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 294 def _textarea(*args, &block) proxiable_tag! :textarea, PreformattedNode, *args, &block end |
#_tr(*args, &block) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 318 def _tr(*args, &block) iterable = args.first.respond_to? :each if iterable and (args.length > 1 or not args.first.respond_to? :to_hash) list = args.shift tag!(:tr, *args) {list.each {|arg| _td arg }} else super end end |
#_ul(*args, &block) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 298 def _ul(*args, &block) iterable = args.first.respond_to? :each if iterable and (args.length > 1 or not args.first.respond_to? :to_hash) list = args.shift.dup tag!(:ul, *args) {list.each {|arg| _li arg }} else super end end |
#`(input) ⇒ Object
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# File 'lib/wunderbar/backtick.rb', line 8 def `(input) Ruby2JS.convert(input) end |
#clear! ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 404 def clear! @_x.clear! end |
#find_name(name) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 104 def find_name(name) proc {|child| child.respond_to? :name and child.name == name} end |
#html(*args, &block) ⇒ Object
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# File 'lib/wunderbar/html-methods.rb', line 45 def html(*args, &block) # default namespace args << {} if args.empty? if Hash === args.first args.first[:xmlns] ||= 'http://www.w3.org/1999/xhtml' @_x._width = args.first.delete(:_width).to_i if args.first[:_width] end bom = "\ufeff" title = args.shift if String === args.first @_x.declare! :DOCTYPE, :html html = tag! :html, *args do set_variables_from_params _title title if title instance_eval(&block) end pending_head = [] pending_body = [] head = nil body = nil html.children.each do |child| next unless child if String === child pending_body << child elsif child.name == 'head' head = child elsif child.name == 'body' body = child elsif HEAD.include? child.name pending_head << child elsif child.name == 'script' if pending_body.empty? pending_head << child else pending_body << child end else pending_body << child end end @_x.instance_eval {@node = html} head = _head_ if not head body = _body nil if not body html.children.unshift(head.parent.children.delete(head)) html.children.push(body.parent.children.delete(body)) head.parent = body.parent = html head.children.compact! body.children.compact! [ [pending_head, head], [pending_body, body] ].each do |list, node| list.each do |child| html.children.delete(child) node.add_child child end end def find_name(name) proc {|child| child.respond_to? :name and child.name == name} end if not head.children.any? &find_name('title') h1 = body.children.find &find_name('h1') head.add_child Node.new('title', h1.text) if h1 and h1.text end base = head.children.index &find_name('base') if base head.children.insert 1, head.children.delete_at(base) if base > 1 # compute relative path from base to the current working directory require 'pathname' base = @_scope.env['DOCUMENT_ROOT'] if @_scope.env.respond_to? :[] base ||= Dir.pwd base += (head.children[1].attrs[:href] || '') base += 'index.html' if base.end_with? '/' base = Pathname.new(base).parent prefix = Pathname.new(Dir.pwd).relative_path_from(base).to_s + '/' prefix = nil if prefix == './' head.children.insert 2, *Asset.declarations(head, prefix) else head.children.insert 1, *Asset.declarations(head, nil) end title = head.children.index {|child| child.name == 'title'} if title and title > 1 head.children.insert 1, head.children.delete_at(title) end bom + @_x.target! end |