Class: Scarpe::WASMInterops

Inherits:
Object
  • Object
show all
Includes:
Log
Defined in:
lib/scarpe/wasm/wasm_calls.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ WASMInterops

Returns a new instance of WASMInterops.



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# File 'lib/scarpe/wasm/wasm_calls.rb', line 9

def initialize
  log_init("WASM")
end

Instance Method Details

#bind(name, func = nil, &block) ⇒ Object 



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# File 'lib/scarpe/wasm/wasm_calls.rb', line 39

def bind(name, func = nil, &block)
  JS.global[:self][name.to_sym] = proc do |*args|
    args = args.map { |x| rubify(x) }
    (func ? func : block).call(*args)
  rescue => e
    @log.error(e)
    @log.error(e.backtrace)
  end
  defined?(JS.global[:self][name.to_sym])
end

#eval(command) ⇒ Object 



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# File 'lib/scarpe/wasm/wasm_calls.rb', line 50

def eval(command)
  JS.eval(command)
end

#init(command) ⇒ Object 



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# File 'lib/scarpe/wasm/wasm_calls.rb', line 54

def init(command)
  @commands ||= []
  @commands << command
end

#js_integer?(num) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/scarpe/wasm/wasm_calls.rb', line 13

def js_integer?(num)
  if JS.global[:Number].isInteger(num)
    true
  else
    false
  end
end

#navigate(string) ⇒ Object 



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# File 'lib/scarpe/wasm/wasm_calls.rb', line 68

def navigate(string)
  # JS.eval('var empty =
  # `body {
  #   font-family: arial, Helvetica, sans-serif;
  #   margin: 0;
  #   height: 100%;
  #   overflow: hidden;
  # }
  # p {
  #   margin: 0;
  # }`;')
  # JS.eval("var head = document.head || document.getElementsByTagName('head')[0];")
  # JS.eval("var style = document.createElement('style');")
  # JS.eval("head.appendChild(style);")
  # JS.eval("style.type = 'text/css';")
  # # JS.eval("style.id = 'style-wvroot';")
  # JS.eval("head.id = 'head-wvroot';")
  # JS.eval("head.appendChild(style);")
  # JS.eval("style.appendChild(document.createTextNode(empty));")
  # JS.eval("var body = document.body;")
  # JS.eval("body.id = 'body-wvroot';")
  # JS.eval("var newDiv = document.createElement('div');")
  # JS.eval("newDiv.id = 'wrapper-wvroot';")
  # JS.eval("body.appendChild(newDiv);")

  style = JS.global[:document].createElement("style")
  style[:id] = "style-wvroot"
  style.appendChild(JS.global[:document].createTextNode("body {
    font-family: arial, Helvetica, sans-serif;
    margin: 0;
    height: 100%;
  }
  p {
    margin: 0;
  }"))
  JS.global[:document][:head].appendChild(style)
  JS.global[:document][:head][:id] = "head-wvroot"
  div = JS.global[:document].createElement("div")
  div[:id] = "wrapper-wvroot"
  JS.global[:document][:body].appendChild(div)
end

#rubify(obj) ⇒ Object 



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# File 'lib/scarpe/wasm/wasm_calls.rb', line 21

def rubify(obj)
  type = obj.typeof
  case type
  when "string"
    obj.to_s
  when "number"
    if js_integer?(obj)
      obj.to_i
    else
      obj.to_f
    end
  when "undefined"
    nil
  else
    obj
  end
end

#run ⇒ Object 



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# File 'lib/scarpe/wasm/wasm_calls.rb', line 110

def run
  @commands.each { |command| JS.eval(command) }
end

#set_size(width, height, hint) ⇒ Object 



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# File 'lib/scarpe/wasm/wasm_calls.rb', line 63

def set_size(width, height, hint)
  #JS.global[:document][:body][:style][:width] = width
  #JS.global[:document][:body][:style][:height] = height
end

#set_title(title) ⇒ Object 



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# File 'lib/scarpe/wasm/wasm_calls.rb', line 59

def set_title(title)
  JS.global[:document][:title] = title
end

#terminate ⇒ Object 



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# File 'lib/scarpe/wasm/wasm_calls.rb', line 114

def terminate
  # stub
end