Use the &altc=1 report form but substitute our own captcha options.

Also
- fix tab order in report form
- focus on captcha in report form
- extend refresh on image click / backspace to original post form
- support language setting for v1 (#458)

src/Menu/ReportLink.coffee

@@ -14,10 +14,11 @@ ReportLink =
         unless post.isDead or (post.thread.isDead and not post.thread.isArchived)
           a.textContent = 'Report'
           ReportLink.url = "//sys.4chan.org/#{post.board}/imgboard.php?mode=report&no=#{post}"
-          ReportLink.dims = if Conf['Use Recaptcha v1 in Reports'] or d.cookie.indexOf('pass_enabled=1') >= 0
+          if (Conf['Use Recaptcha v1 in Reports'] and Main.jsEnabled) or d.cookie.indexOf('pass_enabled=1') >= 0
-            'width=350,height=275'
+            ReportLink.url += '&altc=1'
+            ReportLink.dims = 'width=350,height=275'
           else
-            'width=400,height=550'
+            ReportLink.dims = 'width=400,height=550'
         else if Conf['Archive Report']
           a.textContent = 'Report to archive'
           ReportLink.url = Redirect.to 'report', {boardID: post.board.ID, postID: post.ID}

src/Miscellaneous/Report.coffee

@@ -38,16 +38,6 @@ Report =
     else
       Report.fit 'body'
 
-    if Conf['Use Recaptcha v1 in Reports'] and Main.jsEnabled and d.cookie.indexOf('pass_enabled=1') < 0
-      $.onExists d.body, '#recaptcha_image', (image) ->
-        $.on image, 'click', ->
-          if $.id 'recaptcha_challenge_image'
-            $.global -> window.Recaptcha.reload()
-      $.onExists d.body, '#recaptcha_response_field', (field) ->
-        $.on field, 'keydown', (e) ->
-          if e.keyCode is 8 and not field.value
-            $.global -> window.Recaptcha.reload()
-
   fit: (selector) ->
     return unless (el = $ selector, doc) and getComputedStyle(el).visibility isnt 'hidden'
     dy = el.getBoundingClientRect().bottom - doc.clientHeight + 8

src/Posting/Captcha.replace.coffee

@@ -2,6 +2,12 @@ Captcha.replace =
   init: ->
     return unless d.cookie.indexOf('pass_enabled=1') < 0
 
+    if location.hostname is 'sys.4chan.org' and /[?&]altc\b/.test(location.search) and Main.jsEnabled
+      $.onExists doc, 'script[src="//www.google.com/recaptcha/api/js/recaptcha_ajax.js"]', ->
+        $.global -> window.el.onload = null
+        Captcha.v1.create()
+      return
+
     if (
       (Conf['Use Recaptcha v1'] and location.hostname is 'boards.4chan.org') or
       (Conf['Use Recaptcha v1 in Reports'] and location.hostname is 'sys.4chan.org')

src/Posting/Captcha.v1.coffee

@@ -50,12 +50,30 @@ Captcha.v1 =
       $.replace old, container
 
   create: ->
+    cont = $.id 'captchaContainerAlt'
+    return if @occupied
+
+    @occupied = true
+
+    if (lang = Conf['captchaLanguage'].trim())
+      cont.dataset.lang = lang
+
+    $.onExists cont, '#recaptcha_image', (image) ->
+      $.on image, 'click', ->
+        if $.id 'recaptcha_challenge_image'
+          $.global -> window.Recaptcha.reload()
+    $.onExists cont, '#recaptcha_response_field', (field) ->
+      $.on field, 'keydown', (e) ->
+        if e.keyCode is 8 and not field.value
+          $.global -> window.Recaptcha.reload()
+      field.focus() if location.hostname is 'sys.4chan.org'
+
     $.global ->
       container = document.getElementById 'captchaContainerAlt'
-      return if container.firstChild
       options =
-        theme: 'clean'
+        theme:    'clean'
-        tabindex: {"boards.4chan.org": 5, "sys.4chan.org": 3}[location.hostname]
+        tabindex: {"boards.4chan.org": 5}[location.hostname]
+        lang:     container.dataset.lang
       if window.Recaptcha
         window.Recaptcha.create '<%= meta.recaptchaKey %>', container, options
       else
@@ -123,6 +141,7 @@ Captcha.v1 =
   destroy: ->
     return unless @script
     $.global -> window.Recaptcha.destroy()
+    delete @occupied
     @beforeSetup() if @nodes
 
   sync: (captchas=[]) ->