Class: Inkcite::View::DeveloperScripts

Inherits:
Object
  • Object
show all
Defined in:
lib/inkcite/view/developer_scripts.rb

Class Method Summary collapse

Class Method Details

.install!(view) ⇒ Object 



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# File 'lib/inkcite/view/developer_scripts.rb', line 5

def self.install! view

  email = view.email

  # Determine the index of the version is currently being displayed
  version = view.version
  versions = email.versions
  version_count = versions.count - 1
  version_index = versions.index(version)

  # Determine the next version
  next_index = version_index + 1
  next_index = 0 if next_index > version_count

  # Determine the previous version
  prev_index = version_index - 1
  prev_index = version_count if prev_index < 0

  # True if images are disabled
  images_off = view.images_off?

  script = []

  script << 'document.addEventListener("keypress", (event) => {'
  script << '  window.console.log(event);'
  script << "  var newVersion = '#{version}';"
  script << "  var imagesOff = #{images_off};"
  script << '  if (event.keyCode === 37) {'          # left arrow (previous version)
  script << "    newVersion = '#{versions[prev_index]}';"
  script << '  } else if (event.keyCode === 39) {'   # right arrow (next version)
  script << "    newVersion = '#{versions[next_index]}';"
  script << '  } else if (event.charCode === 105) {'      # i key (toggle images)
  script << '    imagesOff = !imagesOff;'
  script << '  } else {'
  script << '    return true;'                      # invalid keystroke
  script << '  }'
  script << '  var newSearch = "?v=" + newVersion;'
  script << '  if (imagesOff) {'
  script << '     newSearch += "&images-off";'
  script << '  }'
  script << '  window.location.search = newSearch;'
  script << '  event.preventDefault();'
  script << '  return false;'
  script << '});'

  view.scripts << script.join("\n")

end