* bug#14670: Highlight visited links
@ 2013-06-19 22:28 Juri Linkov
2013-06-26 23:27 ` Juri Linkov
0 siblings, 1 reply; 6+ messages in thread
From: Juri Linkov @ 2013-06-19 22:28 UTC (permalink / raw)
To: 14670
Severity: wishlist
Tags: patch
Visiting a URL link from Info doesn't highlight it as visited.
I'm afraid that adding a visited URL to the existing variable
`Info-history' might break other functions that expect it containing
only visited Info nodes in the format `(FILENAME NODENAME BUFFERPOS)'.
So I created a new variable `Info-url-history':
=== modified file 'lisp/info.el'
--- lisp/info.el 2013-06-17 23:57:07 +0000
+++ lisp/info.el 2013-06-19 22:28:22 +0000
@@ -50,6 +50,9 @@ (defvar Info-history-list nil
"List of all Info nodes user has visited.
Each element of the list is a list (FILENAME NODENAME).")
+(defvar Info-url-history nil
+ "List of all URLs user has visited.")
+
(defcustom Info-history-skip-intermediate-nodes t
"Non-nil means don't record intermediate Info nodes to the history.
Intermediate Info nodes are nodes visited by Info internally in the process of
@@ -3882,6 +3885,9 @@ (defun Info-try-follow-nearest-node (&op
(cond
((setq node (Info-get-token (point) "[hf]t?tps?://"
"\\([hf]t?tps?://[^ \t\n\"`({<>})']+\\)"))
+ (when Info-fontify-visited-nodes
+ (setq Info-url-history (cons node (remove node Info-url-history)))
+ (Info-fontify-node))
(browse-url node)
(setq node t))
((setq node (Info-get-token (point) "\\*note[ \n\t]+"
@@ -4972,11 +4978,16 @@ (defun Info-fontify-node ()
;; Fontify http and ftp references
(goto-char (point-min))
- (when not-fontified-p
+ (when (or not-fontified-p fontify-visited-p)
(while (re-search-forward "\\(https?\\|ftp\\)://[^ \t\n\"`({<>})']+"
nil t)
(add-text-properties (match-beginning 0) (match-end 0)
- '(font-lock-face info-xref
+ `(font-lock-face
+ ,(if (and Info-fontify-visited-nodes
+ (member (buffer-substring-no-properties
+ (match-beginning 0) (match-end 0))
+ Info-url-history))
+ 'info-xref-visited 'info-xref)
mouse-face highlight
help-echo "mouse-2: go to this URL"))))
^ permalink raw reply [flat|nested] 6+ messages in thread* bug#14670: Highlight visited links
2013-06-19 22:28 bug#14670: Highlight visited links Juri Linkov
@ 2013-06-26 23:27 ` Juri Linkov
2013-06-27 2:41 ` Stefan Monnier
0 siblings, 1 reply; 6+ messages in thread
From: Juri Linkov @ 2013-06-26 23:27 UTC (permalink / raw)
To: 14670
This patch adds the support for links in virtual Info nodes
rendered by shr.el. A virtual Info node function can just
call `shr-insert-document' and this patch supports the
fontification and navigation for links added by the renderer.
=== modified file 'lisp/info.el'
--- lisp/info.el 2013-05-27 22:42:11 +0000
+++ lisp/info.el 2013-06-24 22:30:15 +0000
@@ -3114,10 +3145,10 @@ (defun Info-next-reference (&optional re
(old-pt (point))
(case-fold-search t))
(or (eobp) (forward-char 1))
- (or (Info-next-reference-or-link pat 'link)
+ (or (Info-next-reference-or-link pat 'shr-url)
(progn
(goto-char (point-min))
- (or (Info-next-reference-or-link pat 'link)
+ (or (Info-next-reference-or-link pat 'shr-url)
(progn
(goto-char old-pt)
(user-error "No cross references in this node")))))
@@ -3141,10 +3172,10 @@ (defun Info-prev-reference (&optional re
(let ((pat "\\*note[ \n\t]+\\([^:]+\\):\\|^\\* .*:\\|[hf]t?tps?://")
(old-pt (point))
(case-fold-search t))
- (or (Info-prev-reference-or-link pat 'link)
+ (or (Info-prev-reference-or-link pat 'shr-url)
(progn
(goto-char (point-max))
- (or (Info-prev-reference-or-link pat 'link)
+ (or (Info-prev-reference-or-link pat 'shr-url)
(progn
(goto-char old-pt)
(user-error "No cross references in this node")))))
@@ -3863,6 +3919,8 @@ (defun Info-try-follow-nearest-node (&op
If FORK is non-nil, it is passed to `Info-goto-node'."
(let (node)
(cond
+ ((and (setq node (get-text-property (point) 'shr-url))
+ (not (eq node t)))
+ (Info-goto-node node fork))
((setq node (Info-get-token (point) "[hf]t?tps?://"
"\\([hf]t?tps?://[^ \t\n\"`({<>})']+\\)"))
(browse-url node)
@@ -4701,6 +4764,18 @@ (defun Info-fontify-node ()
(add-text-properties (1- (match-beginning 2)) (match-end 2)
'(invisible t front-sticky nil rear-nonsticky t)))))
+ ;; Fontify links
+ (goto-char (point-min))
+ (when (or not-fontified-p fontify-visited-p)
+ (let ((beg (next-single-property-change (point-min) 'shr-url))
+ (end nil))
+ (while (and beg (setq end (next-single-property-change beg 'shr-url)))
+ (add-text-properties beg end
+ `(font-lock-face info-xref
+ mouse-face highlight
+ help-echo "mouse-2: go to this node"))
+ (setq beg (next-single-property-change end 'shr-url)))))
+
;; Fontify cross references
(goto-char (point-min))
(when (or not-fontified-p fontify-visited-p)
@@ -4969,7 +5053,7 @@ (defun Info-fontify-node ()
(while (re-search-forward "\\(([0-9]+)\\)" nil t)
(add-text-properties (match-beginning 0) (match-end 0)
`(font-lock-face info-xref
- link t
+ shr-url t
mouse-face highlight
help-echo
,(if (< (point) limit)
^ permalink raw reply [flat|nested] 6+ messages in thread* bug#14670: Highlight visited links
2013-06-26 23:27 ` Juri Linkov
@ 2013-06-27 2:41 ` Stefan Monnier
2013-06-27 23:35 ` Juri Linkov
0 siblings, 1 reply; 6+ messages in thread
From: Stefan Monnier @ 2013-06-27 2:41 UTC (permalink / raw)
To: Juri Linkov; +Cc: 14670
> - (or (Info-next-reference-or-link pat 'link)
> + (or (Info-next-reference-or-link pat 'shr-url)
Why?
Stefan
^ permalink raw reply [flat|nested] 6+ messages in thread* bug#14670: Highlight visited links
2013-06-27 2:41 ` Stefan Monnier
@ 2013-06-27 23:35 ` Juri Linkov
2016-02-24 4:56 ` Lars Ingebrigtsen
0 siblings, 1 reply; 6+ messages in thread
From: Juri Linkov @ 2013-06-27 23:35 UTC (permalink / raw)
To: Stefan Monnier; +Cc: 14670
>> - (or (Info-next-reference-or-link pat 'link)
>> + (or (Info-next-reference-or-link pat 'shr-url)
>
> Why?
Actually there is no need to rename `link' to `shr-url' because
shr.el is flexible enough to allow arbitrary text properties for links:
(defun info-render-node (html)
(let ((shr-external-rendering-functions '((a . info-tag-a))))
(shr-insert-document html)))
(defun info-tag-a (cont)
(let ((url (cdr (assq :href cont)))
(start (point)))
(shr-generic cont)
(when url
(add-text-properties start (point)
(list 'link (shr-expand-url url))))))
So without renaming link text-props, the patch to support
text-prop links in Info becomes shorter:
=== modified file 'lisp/info.el'
--- lisp/info.el 2013-06-27 09:20:04 +0000
+++ lisp/info.el 2013-06-27 23:31:27 +0000
@@ -3863,6 +3919,8 @@ (defun Info-try-follow-nearest-node (&op
If FORK is non-nil, it is passed to `Info-goto-node'."
(let (node)
(cond
+ ((and (setq node (get-text-property (point) 'link)) (not (eq node t)))
+ (Info-goto-node node fork))
((setq node (Info-get-token (point) "[hf]t?tps?://"
"\\([hf]t?tps?://[^ \t\n\"`({<>})']+\\)"))
(browse-url node)
@@ -4701,6 +4766,18 @@ (defun Info-fontify-node ()
(add-text-properties (1- (match-beginning 2)) (match-end 2)
'(invisible t front-sticky nil rear-nonsticky t)))))
+ ;; Fontify links
+ (goto-char (point-min))
+ (when not-fontified-p
+ (let ((beg (next-single-property-change (point-min) 'link))
+ (end nil))
+ (while (and beg (setq end (next-single-property-change beg 'link)))
+ (add-text-properties beg end
+ '(font-lock-face info-xref
+ mouse-face highlight
+ help-echo "mouse-2: go to this link"))
+ (setq beg (next-single-property-change end 'link)))))
+
;; Fontify cross references
(goto-char (point-min))
(when (or not-fontified-p fontify-visited-p)
^ permalink raw reply [flat|nested] 6+ messages in thread* bug#14670: Highlight visited links
2013-06-27 23:35 ` Juri Linkov
@ 2016-02-24 4:56 ` Lars Ingebrigtsen
2019-06-27 11:13 ` Lars Ingebrigtsen
0 siblings, 1 reply; 6+ messages in thread
From: Lars Ingebrigtsen @ 2016-02-24 4:56 UTC (permalink / raw)
To: Juri Linkov; +Cc: Stefan Monnier, 14670
Juri Linkov <juri@jurta.org> writes:
> So without renaming link text-props, the patch to support
> text-prop links in Info becomes shorter:
I tried applying the patch and then going to an Info node that had an
URL, and I didn't really see any difference... Is this patch still
applicable?
>
> === modified file 'lisp/info.el'
> --- lisp/info.el 2013-06-27 09:20:04 +0000
> +++ lisp/info.el 2013-06-27 23:31:27 +0000
> @@ -3863,6 +3919,8 @@ (defun Info-try-follow-nearest-node (&op
> If FORK is non-nil, it is passed to `Info-goto-node'."
> (let (node)
> (cond
> + ((and (setq node (get-text-property (point) 'link)) (not (eq node t)))
> + (Info-goto-node node fork))
> ((setq node (Info-get-token (point) "[hf]t?tps?://"
> "\\([hf]t?tps?://[^ \t\n\"`({<>})']+\\)"))
> (browse-url node)
> @@ -4701,6 +4766,18 @@ (defun Info-fontify-node ()
> (add-text-properties (1- (match-beginning 2)) (match-end 2)
> '(invisible t front-sticky nil rear-nonsticky t)))))
>
> + ;; Fontify links
> + (goto-char (point-min))
> + (when not-fontified-p
> + (let ((beg (next-single-property-change (point-min) 'link))
> + (end nil))
> + (while (and beg (setq end (next-single-property-change beg 'link)))
> + (add-text-properties beg end
> + '(font-lock-face info-xref
> + mouse-face highlight
> + help-echo "mouse-2: go to this link"))
> + (setq beg (next-single-property-change end 'link)))))
> +
> ;; Fontify cross references
> (goto-char (point-min))
> (when (or not-fontified-p fontify-visited-p)
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 6+ messages in thread* bug#14670: Highlight visited links
2016-02-24 4:56 ` Lars Ingebrigtsen
@ 2019-06-27 11:13 ` Lars Ingebrigtsen
0 siblings, 0 replies; 6+ messages in thread
From: Lars Ingebrigtsen @ 2019-06-27 11:13 UTC (permalink / raw)
To: Juri Linkov; +Cc: Stefan Monnier, 14670
Lars Ingebrigtsen <larsi@gnus.org> writes:
> Juri Linkov <juri@jurta.org> writes:
>
>> So without renaming link text-props, the patch to support
>> text-prop links in Info becomes shorter:
>
> I tried applying the patch and then going to an Info node that had an
> URL, and I didn't really see any difference... Is this patch still
> applicable?
I asked that three years ago and got no response, so I'm closing this
bug report. Please reopen if this is still an issue.
--
(domestic pets only, the antidote for overdose, milk.)
bloggy blog: http://lars.ingebrigtsen.no
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2019-06-27 11:13 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-06-19 22:28 bug#14670: Highlight visited links Juri Linkov
2013-06-26 23:27 ` Juri Linkov
2013-06-27 2:41 ` Stefan Monnier
2013-06-27 23:35 ` Juri Linkov
2016-02-24 4:56 ` Lars Ingebrigtsen
2019-06-27 11:13 ` Lars Ingebrigtsen
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