extension/packages/find.coffee

   1 utils = require 'utils'
   2
   3 CONTAINER_ID = 'VimFxFindContainer'
   4
   5 # Create and inserts into DOM find controls and handlers
   6 injectFind = (document) ->
   7   # Clean up just in case...
   8   removeFind document
   9
  10   container = createFindContainer(document)
  11
  12   document.documentElement.appendChild container
  13
  14 # Removes find controls from DOM
  15 removeFind = (document) ->
  16   if div = document.getElementById CONTAINER_ID
  17     document.documentElement.removeChild div
  18
  19 flashFind = (document, findStr) ->
  20   window = document.defaultView
  21
  22   injectFind document
  23   setFindStr document, findStr
  24
  25   window.setTimeout (-> removeFind document), 1000
  26
  27 setFindStr = (document, findStr) ->
  28   if span = document.getElementById "VimFxFindSpan"
  29     span.textContent = "/#{ findStr }"
  30
  31 createFindContainer = (document) ->
  32   return utils.parseHTML document, """
  33     <div class="VimFxReset" id="#{ CONTAINER_ID }">
  34       <span class="VimFxReset" id="VimFxFindSpan">/</span>
  35     </div>
  36   """
  37
  38 find = (window, findStr, backwards=false) ->
  39   f = ->
  40     smartCase = findStr.toLowerCase() != findStr
  41
  42     return window.find \
  43       findStr,
  44       smartCase,  # Smart case sensitivity
  45       backwards,  # To avoid getting last search result in the beginning
  46       true,       # aWrapAround - Doesn't currently work as expected
  47       false,      # aWholeWord - Not implemented according to MDN
  48       true,       # aSearchInFrames - Hell yea, search in frames!
  49       false       # aShowDialog - No dialog please
  50
  51
  52   success =  false
  53
  54   # Perform find only if query string isn't empty to avoid find dialog pop up
  55   if findStr.length > 0
  56     # This will change the ::selection css rule
  57     addClass window.document.body, "VimFxFindModeBody"
  58
  59     # Wrap Around is broken... Therefore
  60     if not success = f()
  61       # If first search attemp has failed then
  62       # reset current selection and try again
  63       window.getSelection().removeAllRanges()
  64       success = f()
  65
  66     # For now let's rely on the fact that Fiefox doesn't update the selection
  67     # if the css fule that governs it is chnaged
  68     window.setTimeout (-> removeClass window.document.body, "VimFxFindModeBody"), 1000
  69
  70   return success
  71
  72 # Adds a class the the `element.className` trying to keep the whole class string
  73 # will formed (without extra spaces at the tails)
  74 addClass = (element, klass) ->
  75   if element.className?.search klass == -1
  76     if element.className
  77       element.className += " #{ klass }"
  78     else
  79       element.className = klass
  80
  81 # Remove a class from the `element.className`
  82 removeClass = (element, klass) ->
  83   name = element.className.replace new RegExp("\\s*#{ klass }"), ""
  84   element.className = name or null
  85
  86
  87 exports.injectFind = injectFind
  88 exports.removeFind = removeFind
  89 exports.flashFind  = flashFind
  90 exports.setFindStr = setFindStr
  91 exports.find       = find