Class: AppHtmlLayer

Inherits:
Object
  • Object
show all
Defined in:
lib/apphtml_layer.rb

Instance Method Summary collapse

Constructor Details

#initialize(app, filepath: '.', headings: false, debug: false) ⇒ AppHtmlLayer

Returns a new instance of AppHtmlLayer.



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# File 'lib/apphtml_layer.rb', line 13

def initialize(app, filepath: '.', headings: false, debug: false)
  @app, @filepath, @headings, @debug = app, filepath, headings, debug
end

Instance Method Details

#default_index ⇒ Object 



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# File 'lib/apphtml_layer.rb', line 108

def default_index()
  
  a = (@app.public_methods - Object.public_methods).sort
  s = a.map {|x| "* [%s](%s)" % [x,x]}.join("\n")

  markdown = "
<html>
<head>
<title>#{@app.class.to_s}</title>
<style>
h1 {color: green}
h2 {color: orange}
div {height: 60%; overflow-y: auto; width: 200px; float: left}
</style>
</head>
<body markdown='1'>

# #{@app.class.to_s} Index

## Public Methods

<div markdown='1'>
#{s}
</div>
<iframe name='i1'></iframe>
<div style='clear: both' />
<hr/>
</body>
</html>    
  "    
  #markdown = s
  doc = Rexle.new(Kramdown::Document.new(markdown).to_html)
  
  doc.root.xpath('body/div/ul/li/a') do |link|
    link.attributes[:target] = 'i1'
  end
  
  [doc.xml(pretty: true), 'text/html']    
end

#lookup(s) ⇒ Object 



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# File 'lib/apphtml_layer.rb', line 17

def lookup(s)

  if s == '/' then
    
    fp = File.join(@filepath, 'index.html')      
    return (File.exists?(fp) ? File.read(fp) : default_index() )

  end
 
  return [s.to_s, 'text/plain'] if s =~ /^\/\w+\.\w+/

  uri = URI(s)

  a = uri.path.split('/')
  a.shift
  name, *args = a

  if uri.query then

    h = URI.decode_www_form(uri.query).inject({}) do |r,x|
      r.merge!(x[0].to_sym => x[1])
    end

    puts ('h: ' + h.inspect).debug if @debug
    args = h[:arg] ? [h[:arg]] : h

  end  

  if @app.respond_to? name.to_sym then

    begin
      
      method = @app.method(name.to_sym)
      
      if method.arity > 0 and  args.length <= 0 then
        
        r = "
        <form action='#{name}'>
          <input type='text' name='arg'/>
          <input type='submit'/>
        </form>"
      else
        
        puts ('args: ' + args.inspect).debug if @debug
        r = args.is_a?(Array) ? method.call(*args) :  method.call(args)
        
      end

      fp = File.join(@filepath, File.basename(name) + '.html')

      content = if File.exists?(fp) then        
        render_html(fp, r)
      else

        if @headings then
          markdown = "
# #{name.capitalize}          

<div>
#{r}
</div>
"

          Kramdown::Document.new(markdown).to_html
        else
          
          r
        end


      end

    rescue
      content = ($!).inspect
    end
    
    puts ('content: ' + content.inspect).debug if @debug

    case content.class.to_s
    when "String"
      media = content.lstrip[0] == '<' ? 'html' : 'plain'
      [content, 'text/' + media]
    when "Hash"
      [content.to_json,'application/json']
    else
      [content.to_s, 'text/plain']
    end
  end

end

#render_html(fp, s) ⇒ Object 



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# File 'lib/apphtml_layer.rb', line 148

def render_html(fp, s)
  
  doc = Rexle.new(File.read fp)
  e = doc.root.element('//[@class="output"]')    
  e.text = s
  
  doc.xml pretty: true    
  
end