Class: Wunderbar::XmlMarkup
Instance Attribute Summary collapse
Class Method Summary
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Instance Method Summary
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#websocket
Methods inherited from BuilderBase
#get_binding, #set_variables_from_params
Constructor Details
#initialize(args = {}) ⇒ XmlMarkup
Returns a new instance of XmlMarkup.
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# File 'lib/wunderbar/builder.rb', line 130
def initialize(args={})
@_scope = args.delete(:scope)
@_indent = args.delete(:indent) || Wunderbar.option[:indent]
@_width = args.delete(:width) || Wunderbar.option[:width]
@_pdf = false
@doc = Node.new(nil)
@node = @doc
@indentation_enabled = true
@spaced = false
end
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Dynamic Method Handling
This class handles dynamic methods through the method_missing method
#method_missing(method, *args, &block) ⇒ Object
forward to Wunderbar or @_scope
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# File 'lib/wunderbar/builder.rb', line 144
def method_missing(method, *args, &block)
if Wunderbar.respond_to? method
Wunderbar.send method, *args, &block
elsif @_scope and @_scope.respond_to? method
@_scope.send method, *args, &block
else
super
end
end
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Instance Attribute Details
#_width ⇒ Object
Returns the value of attribute _width.
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# File 'lib/wunderbar/builder.rb', line 141
def _width
@_width
end
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Class Method Details
.dump(content, args = {}) ⇒ Object
convenience method for taking an XML node or string and formatting it
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# File 'lib/wunderbar/builder.rb', line 111
def self.dump(content, args={})
markup = self.new(args)
if Nokogiri::XML::Document === content and content.root.name == 'html'
markup.declare! :DOCTYPE, :html
end
unless Nokogiri::XML::Node === content
if defined? Nokogiri::HTML5.fragment
content = Nokogiri::HTML5.fragment(content.to_s)
else
content = Nokogiri::HTML.fragment(content.to_s)
end
end
markup[content]
markup.target!
end
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Instance Method Details
#<<(data) ⇒ Object
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# File 'lib/wunderbar/builder.rb', line 298
def <<(data)
if defined? Nokogiri
if not String === data or data.include? '<' or data.include? '&'
data = Nokogiri::HTML::fragment(data.to_s).to_xml
data.gsub!(/<!\[CDATA\[(.*?)\]\]>/m) do
if $1.include? '<' or $1.include? '&'
"//<![CDATA[\n#{$1}\n//]]>"
else
$1
end
end
data.gsub!(/<style([^>])*>\/\/<!\[CDATA\[\n(.*?)\s+\/\/\]\]>/m) do
if $2.include? '<' or $2.include? '&'
"<style#{$1}>/*<![CDATA[*/\n#{$2.gsub("\n\Z",'')}\n/*]]>*/"
else
$1
end
end
end
end
if String === data
@node.children << data
else
@node.add_child data
end
end
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#[](*children) ⇒ Object
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# File 'lib/wunderbar/builder.rb', line 331
def [](*children)
if children.length == 1
if children.first.respond_to? :root
children = [children.first.root]
elsif defined? Nokogiri::XML::DocumentFragment and
Nokogiri::XML::DocumentFragment === children.first
then
children = children.first.children
end
end
if children.first.text? and children.first.text.strip.empty?
children.shift
end
if not children.empty?
children.pop if children.last.text? and children.last.text.strip.empty?
end
children.map do |child|
if child.text? or child.cdata?
text = child.text
if not @indentation_enabled
text! text
elsif text.strip.empty?
text! "" if text.count("\n")>1
else
indented_text! text
end
elsif child.
child.text.sub(/\A /,'').sub(/ \Z/, '')
elsif HtmlMarkup.flatten? child.children
compact! { tag!(child) {self[*child.children]} }
elsif child.children.empty? and HtmlMarkup::VOID.include? child.name
tag!(child)
elsif child.children.all?(&:text?) and child.text
tag!(child, @indentation_enabled ? child.text.strip : child.text)
elsif child.children.any?(&:cdata?) and child.text =~ /[<&]/
self << child
elsif child.name == 'pre'
compact! { tag!(child) {self[*child.children]} }
elsif child.name == 'head'
head = tag!(child) {self[*child.children]}
html = @doc.children.last
if html.name == :html
head.parent.children.pop
html.children.unshift head
head.parent = html
end
head
elsif not Nokogiri::XML::DTD === child
tag!(child) {self[*child.children]}
end
end
end
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#clear! ⇒ Object
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# File 'lib/wunderbar/builder.rb', line 190
def clear!
@doc.children.clear
@node = @doc
end
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# File 'lib/wunderbar/builder.rb', line 174
def text
@node.children << CommentNode.new(text)
end
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#compact!(&block) ⇒ Object
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# File 'lib/wunderbar/builder.rb', line 195
def compact!(&block)
begin
indentation_enabled, @indentation_enabled = @indentation_enabled, false
block.call
ensure
@indentation_enabled = indentation_enabled
end
end
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#declare!(*args) ⇒ Object
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# File 'lib/wunderbar/builder.rb', line 170
def declare! *args
@node.children << DocTypeNode.new(*args)
end
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#indented_text!(text) ⇒ Object
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# File 'lib/wunderbar/builder.rb', line 178
def indented_text!(text)
return if text.length == 0 and not @spaced
text = IndentedTextNode.new(text)
text.extend SpacedNode if @spaced
@node.children << text
@spaced = false
end
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#methods ⇒ Object
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# File 'lib/wunderbar/builder.rb', line 154
def methods
result = super + Wunderbar.methods
result += @_scope.methods if @_scope
result.uniq
end
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#pdf=(value) ⇒ Object
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# File 'lib/wunderbar/builder.rb', line 275
def pdf=(value)
@_pdf = value
end
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#pdf? ⇒ Boolean
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# File 'lib/wunderbar/builder.rb', line 279
def pdf?
@_pdf
end
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#render(container, &block) ⇒ Object
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# File 'lib/wunderbar/react.rb', line 31
def render(container, &block)
csspath = Wunderbar::Node.parse_css_selector(container)
root = @node.root
scripts = root.search('script')
target = root.at(container)
base = root.at('base')
base = (base ? base.attrs[:href] : '') || '/'
_base = @_scope.env['HTTP_X_WUNDERBAR_BASE']
base = base[_base.length..-1] if _base and base.start_with? _base
if base == '..' or base.end_with? '/..'
base = (Pathname.new(@_scope.env['REQUEST_URI']) + '../' + base).to_s
end
script = @_scope.env['SCRIPT_NAME']
base = base[script.length..-1] if script and base.start_with? script
base = base[1..-1] if base.start_with? '/'
element = "document.querySelector(#{container.inspect})"
if csspath.length == 1 and csspath[0].length == 1
value = csspath[0].values.first
case csspath[0].keys.first
when :id
element = "document.getElementById(#{value.inspect})"
when :class
value = value.join(' ')
element = "document.getElementsByClassName(#{value.inspect})[0]"
when :name
element = "document.getElementsByTagName(#{value.inspect})[0]"
end
end
common = Ruby2JS.convert(block, scope: @_scope, react: true)
server = "React.renderToString(#{common})"
client = "React.render(#{common}, #{element})"
scripts.map! do |script|
result = nil
next if Wunderbar::ClientScriptNode === script
if script.attrs[:src]
src = script.attrs[:src]
src = File.join(base, src) if not base.empty?
src.untaint
name = File.expand_path(src, @_scope.settings.public_folder.untaint)
name.untaint unless src.tainted?
if File.exist? name
result = File.read(name)
else
file = File.expand_path(src+'.rb', @_scope.settings.views.untaint)
result = Wunderbar::Asset.convert(file)
end
else
result = Ruby2JS.convert(script.block, binding: script.binding)
end
result
end
builder = Wunderbar::HtmlMarkup.new({})
begin
setup = []
Wunderbar::Asset.scripts.each do |script|
next unless script.options[:react]
setup += script.options[:react] if Array === script.options[:react]
if script.contents
scripts.unshift script.contents
elsif script.path
scripts.unshift File.read(
File.expand_path(script.path, Wunderbar::Asset.root))
end
end
scripts.unshift *setup.uniq
context = ExecJS.compile(scripts.compact.join(";\n"))
nodes = builder._ { context.eval(server) }
nodes.each {|node| node.parent = target}
target.children += nodes
rescue ExecJS::ProgramError => e
Wunderbar.error e
target.children << builder._pre(e.message).node?
end
tag! 'script', Wunderbar::ClientScriptNode, client
end
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#respond_to?(method) ⇒ Boolean
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# File 'lib/wunderbar/builder.rb', line 160
def respond_to?(method)
respond true if Wunderbar.respond_to? method
respond true if @_scope and @_scope.respond_to? method
super
end
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#spaced! ⇒ Object
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# File 'lib/wunderbar/builder.rb', line 204
def spaced!
@spaced = true
end
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#system(command, opts = {}) ⇒ Object
execute a system command, echoing stdin, stdout, and stderr
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# File 'lib/wunderbar/builder.rb', line 284
def system(command, opts={})
tag = opts[:tag] || 'pre'
output_class = opts[:class] || {}
output_class[:stdin] ||= '_stdin'
output_class[:stdout] ||= '_stdout'
output_class[:stderr] ||= '_stderr'
output_class[:hilite] ||= '_stdout _hilite'
super do |kind, line|
tag! tag, line, class: output_class[kind]
end
end
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#tag!(sym, *args, &block) ⇒ Object
avoid method_missing overhead for the most common case
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# File 'lib/wunderbar/builder.rb', line 209
def tag!(sym, *args, &block)
current_node = @node
if sym.respond_to? :children
node = sym
attributes = node.attributes
if node.attribute_nodes.any?(&:namespace)
attributes = Hash[node.attribute_nodes.map { |attr|
name = attr.name
name = "#{attr.namespace.prefix}:#{name}" if attr.namespace
[name, attr.value]
}]
end
attributes.merge!(node.namespaces) if node.namespaces
args.push attributes
if node.namespace and node.namespace.prefix
sym = "#{node.namespace.prefix}:#{node.name}"
else
sym = node.name
end
unless Class === args.first
args.unshift PreformattedNode if sym == 'pre'
args.unshift ScriptNode if sym == 'script'
args.unshift StyleNode if sym == 'style'
end
end
children = nil
if block and block.arity !=0
if args.first and args.first.respond_to? :each
children = args.shift
end
end
if Class === args.first and args.first < Node
node = args.shift.new sym, *args
else
node = Node.new sym, *args
end
node.extend CompactNode unless @indentation_enabled
if @spaced
node.extend SpacedNode
@spaced = false
end
node.text = args.shift if String === args.first
@node.add_child node
@node = node
if block
if children
children.each {|child| block.call(child)}
else
block.call(self)
end
@node.children << nil if @node.children.empty?
end
node
ensure
@node = current_node
end
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#target! ⇒ Object
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# File 'lib/wunderbar/builder.rb', line 186
def target!
"#{@doc.serialize(indent: ' ' * @_indent, width: @_width).join("\n")}\n"
end
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#text!(text) ⇒ Object
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# File 'lib/wunderbar/builder.rb', line 166
def text! text
@node.children << TextNode.new(text)
end
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