eww: jump to next select field easier and better ftp error

* net/eww.el (eww-tag-select): Add text-property to jump to next
select field.
(eww) : Add non-supported ftp error.

lisp/ChangeLog

+2013-12-22  Kenjiro NAKAYAMA <nakayamakenjiro@gmail.com>
+
+	* net/eww.el (eww-tag-select): Add text-property to jump to next
+	select field.
+        (eww) : Add non-supported ftp error.
+
 2013-12-22  Dmitry Gutov  <dgutov@yandex.ru>
 
 	* progmodes/ruby-mode.el (ruby--electric-indent-p): Improve the

lisp/net/eww.el

@@ -144,19 +144,21 @@ See also `eww-form-checkbox-selected-symbol'."
 If the input doesn't look like an URL or a domain name, the
 word(s) will be searched for via `eww-search-prefix'."
   (interactive "sEnter URL or keywords: ")
-  (cond ((string-match-p "\\`file:" url))
-       (t
-        (if (and (= (length (split-string url)) 1)
-                 (or (> (length (split-string url "\\.")) 1)
-                     (string-match eww-local-regex url)))
-            (progn
-              (unless (string-match-p "\\`[a-zA-Z][-a-zA-Z0-9+.]*://" url)
-                (setq url (concat "http://" url)))
-              ;; some site don't redirect final /
-              (when (string= (url-filename (url-generic-parse-url url)) "")
-                (setq url (concat url "/"))))
-          (setq url (concat eww-search-prefix
-                            (replace-regexp-in-string " " "+" url))))))
+  (cond ((string-match-p "\\`file://" url))
+        ((string-match-p "\\`ftp://" url)
+         (user-error "FTP is not supported."))
+        (t
+         (if (and (= (length (split-string url)) 1)
+                  (or (> (length (split-string url "\\.")) 1)
+                      (string-match eww-local-regex url)))
+             (progn
+               (unless (string-match-p "\\`[a-zA-Z][-a-zA-Z0-9+.]*://" url)
+                 (setq url (concat "http://" url)))
+               ;; some site don't redirect final /
+               (when (string= (url-filename (url-generic-parse-url url)) "")
+                 (setq url (concat url "/"))))
+           (setq url (concat eww-search-prefix
+                             (replace-regexp-in-string " " "+" url))))))
   (url-retrieve url 'eww-render (list url)))
 
 ;;;###autoload (defalias 'browse-web 'eww)
@@ -847,6 +849,8 @@ See URL `https://developer.mozilla.org/en-US/docs/Web/HTML/Element/Input'.")
       (put-text-property start (point) 'eww-form menu)
       (add-face-text-property start (point) 'eww-form-select)
       (put-text-property start (point) 'keymap eww-select-map)
+      (unless (= start (point))
+       (put-text-property start (1+ start) 'help-echo "select field"))
       (shr-ensure-paragraph))))
 
 (defun eww-select-display (select)