Move captcha fixes to its own module.

src/General/Main.coffee

@@ -1,10 +1,12 @@
 Main =
   init: ->
     if location.hostname is 'www.google.com'
-      type = if location.pathname is '/recaptcha/api/fallback' then 'noscript' else 'v2'
       return $.ready ->
         doc = d.documentElement
-        Captcha[type].initFrame()
+        if location.pathname is '/recaptcha/api/fallback'
+          Captcha.noscript.initFrame()
+        else
+          Captcha.fixes.init()
 
     g.threads = new SimpleDict()
     g.posts   = new SimpleDict()

src/Posting/Captcha.fixes.coffee

@@ -0,0 +1,36 @@
+Captcha.fixes =
+  selectors:
+    image: '.rc-imageselect-target > .rc-imageselect-tile > img'
+
+  init: ->
+    switch location.pathname.split('/')[3]
+      when 'anchor' then @initMain()
+      when 'frame'  then @initPopup()
+
+  initMain: ->
+    $.onExists d.body, '#recaptcha-anchor', true, (checkbox) ->
+      focus = ->
+        if d.hasFocus() and d.activeElement isnt checkbox
+          checkbox.focus()
+      focus()
+      $.on window, 'focus', ->
+        $.queueTask focus
+
+  initPopup: ->
+    $.addStyle "#{@selectors.image}:focus {outline: 2px solid #4a90e2;}"
+    @fixImages()
+    new MutationObserver(=> @fixImages()).observe d.body, {childList: true, subtree: true}
+
+  fixImages: ->
+    return unless (images = $$ @selectors.image).length
+    focus = images[0].tabIndex isnt 0
+    for img in images
+      img.tabIndex = 0
+    @focusImage images[0] if focus
+
+  focusImage: (img) ->
+    # XXX Image is not focusable at first in Firefox; to be refactored when I figure out why.
+    $.asap ->
+      img.focus()
+      d.activeElement is img or not doc.contains img
+    , ->

src/Posting/Captcha.v2.coffee

@@ -25,36 +25,6 @@ Captcha.v2 =
       # XXX Greasemonkey 1.x workaround to gain access to GM_* functions.
       $.queueTask => @save false
 
-  initFrame: ->
-    @initFrame2[location.pathname.split('/')[3]]()
-
-  initFrame2:
-    anchor: ->
-      $.onExists d.body, '#recaptcha-anchor', true, (checkbox) ->
-        focus = ->
-          if d.hasFocus() and d.activeElement isnt checkbox
-            checkbox.focus()
-        focus()
-        $.on window, 'focus', ->
-          $.queueTask focus
-
-    frame: ->
-      selector = '.rc-imageselect-target > .rc-imageselect-tile > img'
-      $.addStyle "#{selector}:focus {outline: 2px solid #4a90e2;}"
-      fixImages = ->
-        return unless (images = $$ selector).length
-        focus = images[0].tabIndex isnt 0
-        for img in images
-          img.tabIndex = 0
-        if focus
-          # XXX Image is not focusable at first in Firefox; to be refactored when I figure out why.
-          $.asap ->
-            images[0].focus()
-            d.activeElement is images[0] or not doc.contains images[0]
-          , ->
-      fixImages()
-      new MutationObserver(fixImages).observe d.body, {childList: true, subtree: true}
-
   shouldFocus: false
   timeouts: {}
   postsCount: 0