packages/hints.coffee

   1 HINTCHARS     = 'asdfghjkl;'
   2 CONTAINER_ID  = 'vimffHintMarkerContainer'
   3
   4 { interfaces: Ci }          = Components
   5 HTMLDocument                = Ci.nsIDOMHTMLDocument
   6 { Marker, getElementRect }  = require 'marker'
   7
   8 createOrGetHintsContainer = (document) ->
   9   if container = document.getElementById CONTAINER_ID
  10     return container
  11   else
  12     container = document.createElement 'div'
  13     container.id = CONTAINER_ID
  14     document.body.appendChild container
  15     return container
  16
  17 hasHints = (document) ->
  18   document.getUserData 'vimff.has_hints'
  19
  20 addHints = (document, cb) ->
  21   if hasHints document
  22     removeHints document
  23
  24   if document instanceof HTMLDocument
  25     container = createOrGetHintsContainer document
  26
  27     markers = []
  28     for link in document.links
  29       if rect = getElementRect link
  30         marker = new Marker(link, 'aa', container)
  31         marker.show()
  32         marker.setPosition rect.left, rect.top
  33         markers.push marker
  34
  35     document.setUserData 'vimff.has_hints', true, null
  36     document.setUserData 'vimff.markers', markers, null
  37
  38 removeHints = (document) ->
  39   console.log hasHints document
  40   if hasHints document
  41     document.setUserData 'vimff.has_hints', undefined, null
  42     document.setUserData 'vimff.markers', undefined, null
  43
  44     container = createOrGetHintsContainer document
  45     document.body.removeChild container
  46
  47 exports.addHints    = addHints
  48 exports.removeHints = removeHints
  49 exports.hasHints    = removeHints