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266c63b5 AK |
1 | ;;; eww.el --- Emacs Web Wowser |
2 | ||
3 | ;; Copyright (C) 2013 Free Software Foundation, Inc. | |
4 | ||
5 | ;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org> | |
6 | ;; Keywords: html | |
7 | ||
8 | ;; This file is part of GNU Emacs. | |
9 | ||
10 | ;; GNU Emacs is free software: you can redistribute it and/or modify | |
11 | ;; it under the terms of the GNU General Public License as published by | |
12 | ;; the Free Software Foundation, either version 3 of the License, or | |
13 | ;; (at your option) any later version. | |
14 | ||
15 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
16 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | ;; GNU General Public License for more details. | |
19 | ||
20 | ;; You should have received a copy of the GNU General Public License | |
21 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. | |
22 | ||
23 | ;;; Commentary: | |
24 | ||
25 | ;;; Code: | |
26 | ||
27 | (eval-when-compile (require 'cl)) | |
7545bd25 | 28 | (require 'format-spec) |
266c63b5 AK |
29 | (require 'shr) |
30 | (require 'url) | |
2644071e | 31 | (require 'mm-url) |
266c63b5 | 32 | |
c74cb344 G |
33 | (defgroup eww nil |
34 | "Emacs Web Wowser" | |
35 | :version "24.4" | |
36 | :group 'hypermedia | |
37 | :prefix "eww-") | |
38 | ||
39 | (defcustom eww-header-line-format "%t: %u" | |
40 | "Header line format. | |
41 | - %t is replaced by the title. | |
42 | - %u is replaced by the URL." | |
a3ca09b9 IK |
43 | :version "24.4" |
44 | :group 'eww | |
45 | :type 'string) | |
46 | ||
47 | (defcustom eww-search-prefix "https://duckduckgo.com/html/?q=" | |
48 | "Prefix URL to search engine" | |
49 | :version "24.4" | |
c74cb344 G |
50 | :group 'eww |
51 | :type 'string) | |
52 | ||
bfbc93a1 IK |
53 | (defcustom eww-download-path "~/Downloads/" |
54 | "Path where files will downloaded." | |
55 | :version "24.4" | |
56 | :group 'eww | |
57 | :type 'string) | |
58 | ||
b2afb3ea RS |
59 | (defcustom eww-use-external-browser-for-content-type |
60 | "\\`\\(video/\\|audio/\\|application/ogg\\)" | |
61 | "Always use external browser for specified content-type." | |
62 | :version "24.4" | |
63 | :group 'eww | |
64 | :type '(choice (const :tag "Never" nil) | |
65 | regexp)) | |
66 | ||
4570dd16 RS |
67 | (defcustom eww-form-checkbox-selected-symbol "[X]" |
68 | "Symbol used to represent a selected checkbox. | |
69 | See also `eww-form-checkbox-symbol'." | |
70 | :version "24.4" | |
71 | :group 'eww | |
72 | :type '(choice (const "[X]") | |
73 | (const "☒") ; Unicode BALLOT BOX WITH X | |
74 | (const "☑") ; Unicode BALLOT BOX WITH CHECK | |
75 | string)) | |
76 | ||
77 | (defcustom eww-form-checkbox-symbol "[ ]" | |
78 | "Symbol used to represent a checkbox. | |
79 | See also `eww-form-checkbox-selected-symbol'." | |
80 | :version "24.4" | |
81 | :group 'eww | |
82 | :type '(choice (const "[ ]") | |
83 | (const "☐") ; Unicode BALLOT BOX | |
84 | string)) | |
85 | ||
970ad972 G |
86 | (defface eww-form-submit |
87 | '((((type x w32 ns) (class color)) ; Like default mode line | |
88 | :box (:line-width 2 :style released-button) | |
89 | :background "#808080" :foreground "black")) | |
90 | "Face for eww buffer buttons." | |
91 | :version "24.4" | |
92 | :group 'eww) | |
93 | ||
94 | (defface eww-form-checkbox | |
95 | '((((type x w32 ns) (class color)) ; Like default mode line | |
96 | :box (:line-width 2 :style released-button) | |
97 | :background "lightgrey" :foreground "black")) | |
98 | "Face for eww buffer buttons." | |
99 | :version "24.4" | |
100 | :group 'eww) | |
101 | ||
102 | (defface eww-form-select | |
be2aa135 LMI |
103 | '((((type x w32 ns) (class color)) ; Like default mode line |
104 | :box (:line-width 2 :style released-button) | |
105 | :background "lightgrey" :foreground "black")) | |
106 | "Face for eww buffer buttons." | |
107 | :version "24.4" | |
108 | :group 'eww) | |
109 | ||
970ad972 G |
110 | (defface eww-form-text |
111 | '((t (:background "#505050" | |
112 | :foreground "white" | |
113 | :box (:line-width 1)))) | |
114 | "Face for eww text inputs." | |
115 | :version "24.4" | |
116 | :group 'eww) | |
117 | ||
fec0e828 KN |
118 | (defface eww-form-textarea |
119 | '((t (:background "#C0C0C0" | |
120 | :foreground "black" | |
121 | :box (:line-width 1)))) | |
122 | "Face for eww textarea inputs." | |
123 | :version "24.4" | |
124 | :group 'eww) | |
125 | ||
266c63b5 | 126 | (defvar eww-current-url nil) |
ab6dea82 | 127 | (defvar eww-current-dom nil) |
ff69c18f | 128 | (defvar eww-current-source nil) |
c74cb344 G |
129 | (defvar eww-current-title "" |
130 | "Title of current page.") | |
266c63b5 | 131 | (defvar eww-history nil) |
d3f0f918 | 132 | (defvar eww-history-position 0) |
266c63b5 | 133 | |
924d6997 G |
134 | (defvar eww-next-url nil) |
135 | (defvar eww-previous-url nil) | |
136 | (defvar eww-up-url nil) | |
970ad972 G |
137 | (defvar eww-home-url nil) |
138 | (defvar eww-start-url nil) | |
139 | (defvar eww-contents-url nil) | |
924d6997 | 140 | |
604ede6c TZ |
141 | (defvar eww-local-regex "localhost" |
142 | "When this regex is found in the URL, it's not a keyword but an address.") | |
143 | ||
1af66437 LMI |
144 | (defvar eww-link-keymap |
145 | (let ((map (copy-keymap shr-map))) | |
146 | (define-key map "\r" 'eww-follow-link) | |
147 | map)) | |
148 | ||
d583b36b | 149 | ;;;###autoload |
266c63b5 | 150 | (defun eww (url) |
a3ca09b9 IK |
151 | "Fetch URL and render the page. |
152 | If the input doesn't look like an URL or a domain name, the | |
153 | word(s) will be searched for via `eww-search-prefix'." | |
154 | (interactive "sEnter URL or keywords: ") | |
56890ecd KN |
155 | (cond ((string-match-p "\\`file://" url)) |
156 | ((string-match-p "\\`ftp://" url) | |
157 | (user-error "FTP is not supported.")) | |
158 | (t | |
159 | (if (and (= (length (split-string url)) 1) | |
160 | (or (> (length (split-string url "\\.")) 1) | |
161 | (string-match eww-local-regex url))) | |
162 | (progn | |
163 | (unless (string-match-p "\\`[a-zA-Z][-a-zA-Z0-9+.]*://" url) | |
164 | (setq url (concat "http://" url))) | |
165 | ;; some site don't redirect final / | |
166 | (when (string= (url-filename (url-generic-parse-url url)) "") | |
167 | (setq url (concat url "/")))) | |
168 | (setq url (concat eww-search-prefix | |
169 | (replace-regexp-in-string " " "+" url)))))) | |
266c63b5 AK |
170 | (url-retrieve url 'eww-render (list url))) |
171 | ||
7a409b30 JL |
172 | ;;;###autoload (defalias 'browse-web 'eww) |
173 | ||
924d6997 G |
174 | ;;;###autoload |
175 | (defun eww-open-file (file) | |
176 | "Render a file using EWW." | |
177 | (interactive "fFile: ") | |
121ea65f EZ |
178 | (eww (concat "file://" |
179 | (and (memq system-type '(windows-nt ms-dos)) | |
180 | "/") | |
181 | (expand-file-name file)))) | |
924d6997 | 182 | |
266c63b5 | 183 | (defun eww-render (status url &optional point) |
c74cb344 G |
184 | (let ((redirect (plist-get status :redirect))) |
185 | (when redirect | |
186 | (setq url redirect))) | |
5e1901c1 RS |
187 | (setq-local eww-next-url nil) |
188 | (setq-local eww-previous-url nil) | |
189 | (setq-local eww-up-url nil) | |
190 | (setq-local eww-home-url nil) | |
191 | (setq-local eww-start-url nil) | |
192 | (setq-local eww-contents-url nil) | |
266c63b5 AK |
193 | (let* ((headers (eww-parse-headers)) |
194 | (content-type | |
195 | (mail-header-parse-content-type | |
196 | (or (cdr (assoc "content-type" headers)) | |
197 | "text/plain"))) | |
198 | (charset (intern | |
199 | (downcase | |
200 | (or (cdr (assq 'charset (cdr content-type))) | |
d652f4d0 G |
201 | (eww-detect-charset (equal (car content-type) |
202 | "text/html")) | |
266c63b5 AK |
203 | "utf8")))) |
204 | (data-buffer (current-buffer))) | |
205 | (unwind-protect | |
206 | (progn | |
450c7b35 | 207 | (setq eww-current-title "") |
266c63b5 | 208 | (cond |
b2afb3ea RS |
209 | ((and eww-use-external-browser-for-content-type |
210 | (string-match-p eww-use-external-browser-for-content-type | |
211 | (car content-type))) | |
212 | (eww-browse-with-external-browser url)) | |
266c63b5 | 213 | ((equal (car content-type) "text/html") |
513562a1 | 214 | (eww-display-html charset url nil point)) |
b2afb3ea | 215 | ((string-match-p "\\`image/" (car content-type)) |
39fa32d6 | 216 | (eww-display-image) |
eff0a2bd | 217 | (eww-update-header-line-format)) |
266c63b5 | 218 | (t |
513562a1 LMI |
219 | (eww-display-raw) |
220 | (eww-update-header-line-format))) | |
62ad85e6 | 221 | (setq eww-current-url url |
513562a1 | 222 | eww-history-position 0)) |
266c63b5 AK |
223 | (kill-buffer data-buffer)))) |
224 | ||
225 | (defun eww-parse-headers () | |
226 | (let ((headers nil)) | |
d652f4d0 | 227 | (goto-char (point-min)) |
266c63b5 AK |
228 | (while (and (not (eobp)) |
229 | (not (eolp))) | |
230 | (when (looking-at "\\([^:]+\\): *\\(.*\\)") | |
231 | (push (cons (downcase (match-string 1)) | |
232 | (match-string 2)) | |
233 | headers)) | |
234 | (forward-line 1)) | |
235 | (unless (eobp) | |
236 | (forward-line 1)) | |
237 | headers)) | |
238 | ||
db5a34ca KY |
239 | (defun eww-detect-charset (html-p) |
240 | (let ((case-fold-search t) | |
241 | (pt (point))) | |
242 | (or (and html-p | |
243 | (re-search-forward | |
b89fc156 | 244 | "<meta[\t\n\r ]+[^>]*charset=\"?\\([^\t\n\r \"/>]+\\)[\\\"'.*]" nil t) |
db5a34ca KY |
245 | (goto-char pt) |
246 | (match-string 1)) | |
247 | (and (looking-at | |
248 | "[\t\n\r ]*<\\?xml[\t\n\r ]+[^>]*encoding=\"\\([^\"]+\\)") | |
249 | (match-string 1))))) | |
250 | ||
5148da15 GM |
251 | (declare-function libxml-parse-html-region "xml.c" |
252 | (start end &optional base-url)) | |
253 | ||
513562a1 | 254 | (defun eww-display-html (charset url &optional document point) |
5148da15 GM |
255 | (or (fboundp 'libxml-parse-html-region) |
256 | (error "This function requires Emacs to be compiled with libxml2")) | |
266c63b5 | 257 | (unless (eq charset 'utf8) |
3e41a054 LMI |
258 | (condition-case nil |
259 | (decode-coding-region (point) (point-max) charset) | |
260 | (coding-system-error nil))) | |
266c63b5 | 261 | (let ((document |
513562a1 LMI |
262 | (or document |
263 | (list | |
264 | 'base (list (cons 'href url)) | |
265 | (libxml-parse-html-region (point) (point-max)))))) | |
ff69c18f | 266 | (setq eww-current-source (buffer-substring (point) (point-max))) |
266c63b5 | 267 | (eww-setup-buffer) |
ab6dea82 | 268 | (setq eww-current-dom document) |
2644071e | 269 | (let ((inhibit-read-only t) |
970ad972 | 270 | (after-change-functions nil) |
c74cb344 | 271 | (shr-width nil) |
513562a1 | 272 | (shr-target-id (url-target (url-generic-parse-url url))) |
2644071e | 273 | (shr-external-rendering-functions |
c74cb344 G |
274 | '((title . eww-tag-title) |
275 | (form . eww-tag-form) | |
2644071e | 276 | (input . eww-tag-input) |
c74cb344 G |
277 | (textarea . eww-tag-textarea) |
278 | (body . eww-tag-body) | |
924d6997 G |
279 | (select . eww-tag-select) |
280 | (link . eww-tag-link) | |
281 | (a . eww-tag-a)))) | |
513562a1 LMI |
282 | (shr-insert-document document) |
283 | (cond | |
284 | (point | |
285 | (goto-char point)) | |
286 | (shr-target-id | |
1c4b1e61 | 287 | (goto-char (point-min)) |
513562a1 LMI |
288 | (let ((point (next-single-property-change |
289 | (point-min) 'shr-target-id))) | |
1c4b1e61 LMI |
290 | (when point |
291 | (goto-char point)))) | |
513562a1 LMI |
292 | (t |
293 | (goto-char (point-min))))) | |
294 | (setq eww-current-url url | |
295 | eww-history-position 0) | |
296 | (eww-update-header-line-format))) | |
266c63b5 | 297 | |
924d6997 G |
298 | (defun eww-handle-link (cont) |
299 | (let* ((rel (assq :rel cont)) | |
300 | (href (assq :href cont)) | |
970ad972 G |
301 | (where (assoc |
302 | ;; The text associated with :rel is case-insensitive. | |
303 | (if rel (downcase (cdr rel))) | |
924d6997 | 304 | '(("next" . eww-next-url) |
970ad972 G |
305 | ;; Texinfo uses "previous", but HTML specifies |
306 | ;; "prev", so recognize both. | |
924d6997 | 307 | ("previous" . eww-previous-url) |
970ad972 G |
308 | ("prev" . eww-previous-url) |
309 | ;; HTML specifies "start" but also "contents", | |
310 | ;; and Gtk seems to use "home". Recognize | |
311 | ;; them all; but store them in different | |
312 | ;; variables so that we can readily choose the | |
313 | ;; "best" one. | |
314 | ("start" . eww-start-url) | |
315 | ("home" . eww-home-url) | |
316 | ("contents" . eww-contents-url) | |
924d6997 G |
317 | ("up" . eww-up-url))))) |
318 | (and href | |
319 | where | |
320 | (set (cdr where) (cdr href))))) | |
321 | ||
322 | (defun eww-tag-link (cont) | |
323 | (eww-handle-link cont) | |
324 | (shr-generic cont)) | |
325 | ||
326 | (defun eww-tag-a (cont) | |
327 | (eww-handle-link cont) | |
513562a1 LMI |
328 | (let ((start (point))) |
329 | (shr-tag-a cont) | |
330 | (put-text-property start (point) 'keymap eww-link-keymap))) | |
924d6997 | 331 | |
c74cb344 G |
332 | (defun eww-update-header-line-format () |
333 | (if eww-header-line-format | |
d80a808f LMI |
334 | (setq header-line-format |
335 | (replace-regexp-in-string | |
336 | "%" "%%" | |
62ad85e6 GM |
337 | ;; FIXME? Title can be blank. Default to, eg, last component |
338 | ;; of url? | |
d80a808f LMI |
339 | (format-spec eww-header-line-format |
340 | `((?u . ,eww-current-url) | |
341 | (?t . ,eww-current-title))))) | |
c74cb344 G |
342 | (setq header-line-format nil))) |
343 | ||
344 | (defun eww-tag-title (cont) | |
345 | (setq eww-current-title "") | |
346 | (dolist (sub cont) | |
347 | (when (eq (car sub) 'text) | |
348 | (setq eww-current-title (concat eww-current-title (cdr sub))))) | |
349 | (eww-update-header-line-format)) | |
350 | ||
351 | (defun eww-tag-body (cont) | |
352 | (let* ((start (point)) | |
353 | (fgcolor (cdr (or (assq :fgcolor cont) | |
354 | (assq :text cont)))) | |
355 | (bgcolor (cdr (assq :bgcolor cont))) | |
356 | (shr-stylesheet (list (cons 'color fgcolor) | |
357 | (cons 'background-color bgcolor)))) | |
358 | (shr-generic cont) | |
359 | (eww-colorize-region start (point) fgcolor bgcolor))) | |
360 | ||
361 | (defun eww-colorize-region (start end fg &optional bg) | |
362 | (when (or fg bg) | |
363 | (let ((new-colors (shr-color-check fg bg))) | |
364 | (when new-colors | |
365 | (when fg | |
544d4594 | 366 | (add-face-text-property start end |
970ad972 G |
367 | (list :foreground (cadr new-colors)) |
368 | t)) | |
c74cb344 | 369 | (when bg |
544d4594 | 370 | (add-face-text-property start end |
970ad972 G |
371 | (list :background (car new-colors)) |
372 | t)))))) | |
c74cb344 | 373 | |
fde38d49 | 374 | (defun eww-display-raw () |
266c63b5 AK |
375 | (let ((data (buffer-substring (point) (point-max)))) |
376 | (eww-setup-buffer) | |
377 | (let ((inhibit-read-only t)) | |
378 | (insert data)) | |
379 | (goto-char (point-min)))) | |
380 | ||
381 | (defun eww-display-image () | |
21c58ae2 | 382 | (let ((data (shr-parse-image-data))) |
266c63b5 AK |
383 | (eww-setup-buffer) |
384 | (let ((inhibit-read-only t)) | |
385 | (shr-put-image data nil)) | |
386 | (goto-char (point-min)))) | |
387 | ||
388 | (defun eww-setup-buffer () | |
997798bf | 389 | (switch-to-buffer (get-buffer-create "*eww*")) |
266c63b5 | 390 | (let ((inhibit-read-only t)) |
8308f184 | 391 | (remove-overlays) |
266c63b5 | 392 | (erase-buffer)) |
8308f184 LMI |
393 | (unless (eq major-mode 'eww-mode) |
394 | (eww-mode))) | |
266c63b5 | 395 | |
ff69c18f TZ |
396 | (defun eww-view-source () |
397 | (interactive) | |
398 | (let ((buf (get-buffer-create "*eww-source*")) | |
399 | (source eww-current-source)) | |
400 | (with-current-buffer buf | |
401 | (delete-region (point-min) (point-max)) | |
402 | (insert (or eww-current-source "no source")) | |
403 | (goto-char (point-min)) | |
5e1901c1 | 404 | (when (fboundp 'html-mode) |
ff69c18f TZ |
405 | (html-mode))) |
406 | (view-buffer buf))) | |
407 | ||
266c63b5 AK |
408 | (defvar eww-mode-map |
409 | (let ((map (make-sparse-keymap))) | |
410 | (suppress-keymap map) | |
8f2be364 | 411 | (define-key map "q" 'quit-window) |
f22255bd | 412 | (define-key map "g" 'eww-reload) |
7304e4dd LMI |
413 | (define-key map [tab] 'shr-next-link) |
414 | (define-key map [backtab] 'shr-previous-link) | |
266c63b5 | 415 | (define-key map [delete] 'scroll-down-command) |
7a409b30 | 416 | (define-key map [?\S-\ ] 'scroll-down-command) |
266c63b5 AK |
417 | (define-key map "\177" 'scroll-down-command) |
418 | (define-key map " " 'scroll-up-command) | |
924d6997 | 419 | (define-key map "l" 'eww-back-url) |
7a409b30 | 420 | (define-key map "r" 'eww-forward-url) |
924d6997 | 421 | (define-key map "n" 'eww-next-url) |
266c63b5 | 422 | (define-key map "p" 'eww-previous-url) |
924d6997 G |
423 | (define-key map "u" 'eww-up-url) |
424 | (define-key map "t" 'eww-top-url) | |
16f74f10 | 425 | (define-key map "&" 'eww-browse-with-external-browser) |
bfbc93a1 | 426 | (define-key map "d" 'eww-download) |
16f74f10 | 427 | (define-key map "w" 'eww-copy-page-url) |
23a75d7f | 428 | (define-key map "C" 'url-cookie-list) |
ff69c18f | 429 | (define-key map "v" 'eww-view-source) |
d49fbfd6 | 430 | (define-key map "H" 'eww-list-histories) |
23a75d7f | 431 | |
2b4f0506 LMI |
432 | (define-key map "b" 'eww-add-bookmark) |
433 | (define-key map "B" 'eww-list-bookmarks) | |
434 | (define-key map [(meta n)] 'eww-next-bookmark) | |
435 | (define-key map [(meta p)] 'eww-previous-bookmark) | |
436 | ||
23a75d7f | 437 | (easy-menu-define nil map "" |
6ee877c7 | 438 | '("Eww" |
8f2be364 TZ |
439 | ["Exit" eww-quit t] |
440 | ["Close browser" quit-window t] | |
23a75d7f LMI |
441 | ["Reload" eww-reload t] |
442 | ["Back to previous page" eww-back-url | |
443 | :active (not (zerop (length eww-history)))] | |
444 | ["Forward to next page" eww-forward-url | |
445 | :active (not (zerop eww-history-position))] | |
446 | ["Browse with external browser" eww-browse-with-external-browser t] | |
447 | ["Download" eww-download t] | |
ff69c18f | 448 | ["View page source" eww-view-source] |
23a75d7f | 449 | ["Copy page URL" eww-copy-page-url t] |
d49fbfd6 | 450 | ["List histories" eww-list-histories t] |
2b4f0506 | 451 | ["Add bookmark" eww-add-bookmark t] |
b68cf43c | 452 | ["List bookmarks" eww-list-bookmarks t] |
23a75d7f | 453 | ["List cookies" url-cookie-list t])) |
266c63b5 AK |
454 | map)) |
455 | ||
5e1901c1 RS |
456 | (defvar eww-tool-bar-map |
457 | (let ((map (make-sparse-keymap))) | |
458 | (dolist (tool-bar-item | |
459 | '((eww-quit . "close") | |
460 | (eww-reload . "refresh") | |
461 | (eww-back-url . "left-arrow") | |
462 | (eww-forward-url . "right-arrow") | |
463 | (eww-view-source . "show") | |
464 | (eww-copy-page-url . "copy") | |
465 | (eww-add-bookmark . "bookmark_add"))) ;; ... | |
466 | (tool-bar-local-item-from-menu | |
467 | (car tool-bar-item) (cdr tool-bar-item) map eww-mode-map)) | |
468 | map) | |
469 | "Tool bar for `eww-mode'.") | |
470 | ||
d652f4d0 | 471 | (define-derived-mode eww-mode nil "eww" |
266c63b5 AK |
472 | "Mode for browsing the web. |
473 | ||
474 | \\{eww-mode-map}" | |
62ad85e6 | 475 | ;; FIXME? This seems a strange default. |
5e1901c1 RS |
476 | (setq-local eww-current-url 'author) |
477 | (setq-local eww-current-dom nil) | |
478 | (setq-local eww-current-source nil) | |
479 | (setq-local browse-url-browser-function 'eww-browse-url) | |
480 | (setq-local after-change-functions 'eww-process-text-input) | |
481 | (setq-local eww-history nil) | |
482 | (setq-local eww-history-position 0) | |
483 | (when (boundp 'tool-bar-map) | |
484 | (setq-local tool-bar-map eww-tool-bar-map)) | |
843571cb | 485 | (buffer-disable-undo) |
970ad972 G |
486 | ;;(setq buffer-read-only t) |
487 | ) | |
266c63b5 | 488 | |
75dbaf9d | 489 | ;;;###autoload |
6c42fc3e | 490 | (defun eww-browse-url (url &optional _new-window) |
970ad972 G |
491 | (when (and (equal major-mode 'eww-mode) |
492 | eww-current-url) | |
d3f0f918 | 493 | (eww-save-history)) |
5c3087e9 | 494 | (eww url)) |
266c63b5 | 495 | |
924d6997 | 496 | (defun eww-back-url () |
266c63b5 AK |
497 | "Go to the previously displayed page." |
498 | (interactive) | |
d3f0f918 | 499 | (when (>= eww-history-position (length eww-history)) |
5e1901c1 | 500 | (user-error "No previous page")) |
8308f184 LMI |
501 | (eww-save-history) |
502 | (setq eww-history-position (+ eww-history-position 2)) | |
503 | (eww-restore-history (elt eww-history (1- eww-history-position)))) | |
d3f0f918 LMI |
504 | |
505 | (defun eww-forward-url () | |
506 | "Go to the next displayed page." | |
507 | (interactive) | |
508 | (when (zerop eww-history-position) | |
5e1901c1 | 509 | (user-error "No next page")) |
8308f184 LMI |
510 | (eww-save-history) |
511 | (eww-restore-history (elt eww-history (1- eww-history-position)))) | |
d3f0f918 LMI |
512 | |
513 | (defun eww-restore-history (elem) | |
514 | (let ((inhibit-read-only t)) | |
e82b0991 | 515 | (erase-buffer) |
d3f0f918 | 516 | (insert (plist-get elem :text)) |
ff69c18f | 517 | (setq eww-current-source (plist-get elem :source)) |
ab6dea82 | 518 | (setq eww-current-dom (plist-get elem :dom)) |
d3f0f918 | 519 | (goto-char (plist-get elem :point)) |
2b4f0506 | 520 | (setq eww-current-url (plist-get elem :url) |
3e9876de LMI |
521 | eww-current-title (plist-get elem :title)) |
522 | (eww-update-header-line-format))) | |
266c63b5 | 523 | |
924d6997 G |
524 | (defun eww-next-url () |
525 | "Go to the page marked `next'. | |
526 | A page is marked `next' if rel=\"next\" appears in a <link> | |
527 | or <a> tag." | |
528 | (interactive) | |
529 | (if eww-next-url | |
530 | (eww-browse-url (shr-expand-url eww-next-url eww-current-url)) | |
5e1901c1 | 531 | (user-error "No `next' on this page"))) |
924d6997 G |
532 | |
533 | (defun eww-previous-url () | |
534 | "Go to the page marked `previous'. | |
535 | A page is marked `previous' if rel=\"previous\" appears in a <link> | |
536 | or <a> tag." | |
537 | (interactive) | |
538 | (if eww-previous-url | |
539 | (eww-browse-url (shr-expand-url eww-previous-url eww-current-url)) | |
5e1901c1 | 540 | (user-error "No `previous' on this page"))) |
924d6997 G |
541 | |
542 | (defun eww-up-url () | |
543 | "Go to the page marked `up'. | |
544 | A page is marked `up' if rel=\"up\" appears in a <link> | |
545 | or <a> tag." | |
546 | (interactive) | |
547 | (if eww-up-url | |
548 | (eww-browse-url (shr-expand-url eww-up-url eww-current-url)) | |
5e1901c1 | 549 | (user-error "No `up' on this page"))) |
924d6997 G |
550 | |
551 | (defun eww-top-url () | |
552 | "Go to the page marked `top'. | |
970ad972 G |
553 | A page is marked `top' if rel=\"start\", rel=\"home\", or rel=\"contents\" |
554 | appears in a <link> or <a> tag." | |
924d6997 | 555 | (interactive) |
970ad972 G |
556 | (let ((best-url (or eww-start-url |
557 | eww-contents-url | |
558 | eww-home-url))) | |
559 | (if best-url | |
560 | (eww-browse-url (shr-expand-url best-url eww-current-url)) | |
5e1901c1 | 561 | (user-error "No `top' for this page")))) |
924d6997 | 562 | |
f22255bd LMI |
563 | (defun eww-reload () |
564 | "Reload the current page." | |
565 | (interactive) | |
566 | (url-retrieve eww-current-url 'eww-render | |
567 | (list eww-current-url (point)))) | |
568 | ||
2644071e LMI |
569 | ;; Form support. |
570 | ||
571 | (defvar eww-form nil) | |
572 | ||
970ad972 G |
573 | (defvar eww-submit-map |
574 | (let ((map (make-sparse-keymap))) | |
575 | (define-key map "\r" 'eww-submit) | |
e854cfc7 | 576 | (define-key map [(control c) (control c)] 'eww-submit) |
970ad972 G |
577 | map)) |
578 | ||
579 | (defvar eww-checkbox-map | |
580 | (let ((map (make-sparse-keymap))) | |
dde4de31 | 581 | (define-key map " " 'eww-toggle-checkbox) |
970ad972 | 582 | (define-key map "\r" 'eww-toggle-checkbox) |
e854cfc7 | 583 | (define-key map [(control c) (control c)] 'eww-submit) |
970ad972 G |
584 | map)) |
585 | ||
586 | (defvar eww-text-map | |
587 | (let ((map (make-keymap))) | |
588 | (set-keymap-parent map text-mode-map) | |
589 | (define-key map "\r" 'eww-submit) | |
590 | (define-key map [(control a)] 'eww-beginning-of-text) | |
e854cfc7 | 591 | (define-key map [(control c) (control c)] 'eww-submit) |
970ad972 G |
592 | (define-key map [(control e)] 'eww-end-of-text) |
593 | (define-key map [tab] 'shr-next-link) | |
594 | (define-key map [backtab] 'shr-previous-link) | |
595 | map)) | |
596 | ||
597 | (defvar eww-textarea-map | |
598 | (let ((map (make-keymap))) | |
599 | (set-keymap-parent map text-mode-map) | |
600 | (define-key map "\r" 'forward-line) | |
e854cfc7 | 601 | (define-key map [(control c) (control c)] 'eww-submit) |
970ad972 G |
602 | (define-key map [tab] 'shr-next-link) |
603 | (define-key map [backtab] 'shr-previous-link) | |
604 | map)) | |
605 | ||
606 | (defvar eww-select-map | |
607 | (let ((map (make-sparse-keymap))) | |
608 | (define-key map "\r" 'eww-change-select) | |
e854cfc7 | 609 | (define-key map [(control c) (control c)] 'eww-submit) |
970ad972 G |
610 | map)) |
611 | ||
612 | (defun eww-beginning-of-text () | |
613 | "Move to the start of the input field." | |
614 | (interactive) | |
615 | (goto-char (eww-beginning-of-field))) | |
616 | ||
617 | (defun eww-end-of-text () | |
618 | "Move to the end of the text in the input field." | |
619 | (interactive) | |
620 | (goto-char (eww-end-of-field)) | |
621 | (let ((start (eww-beginning-of-field))) | |
622 | (while (and (equal (following-char) ? ) | |
623 | (> (point) start)) | |
624 | (forward-char -1)) | |
625 | (when (> (point) start) | |
626 | (forward-char 1)))) | |
627 | ||
628 | (defun eww-beginning-of-field () | |
629 | (cond | |
630 | ((bobp) | |
631 | (point)) | |
632 | ((not (eq (get-text-property (point) 'eww-form) | |
633 | (get-text-property (1- (point)) 'eww-form))) | |
634 | (point)) | |
635 | (t | |
636 | (previous-single-property-change | |
637 | (point) 'eww-form nil (point-min))))) | |
638 | ||
639 | (defun eww-end-of-field () | |
640 | (1- (next-single-property-change | |
641 | (point) 'eww-form nil (point-max)))) | |
642 | ||
2644071e LMI |
643 | (defun eww-tag-form (cont) |
644 | (let ((eww-form | |
645 | (list (assq :method cont) | |
646 | (assq :action cont))) | |
647 | (start (point))) | |
648 | (shr-ensure-paragraph) | |
649 | (shr-generic cont) | |
3d95242e LMI |
650 | (unless (bolp) |
651 | (insert "\n")) | |
652 | (insert "\n") | |
001b9fbe LMI |
653 | (when (> (point) start) |
654 | (put-text-property start (1+ start) | |
655 | 'eww-form eww-form)))) | |
2644071e | 656 | |
970ad972 G |
657 | (defun eww-form-submit (cont) |
658 | (let ((start (point)) | |
659 | (value (cdr (assq :value cont)))) | |
660 | (setq value | |
661 | (if (zerop (length value)) | |
662 | "Submit" | |
663 | value)) | |
664 | (insert value) | |
665 | (add-face-text-property start (point) 'eww-form-submit) | |
666 | (put-text-property start (point) 'eww-form | |
667 | (list :eww-form eww-form | |
668 | :value value | |
669 | :type "submit" | |
670 | :name (cdr (assq :name cont)))) | |
671 | (put-text-property start (point) 'keymap eww-submit-map) | |
672 | (insert " "))) | |
673 | ||
674 | (defun eww-form-checkbox (cont) | |
675 | (let ((start (point))) | |
676 | (if (cdr (assq :checked cont)) | |
4570dd16 RS |
677 | (insert eww-form-checkbox-selected-symbol) |
678 | (insert eww-form-checkbox-symbol)) | |
970ad972 G |
679 | (add-face-text-property start (point) 'eww-form-checkbox) |
680 | (put-text-property start (point) 'eww-form | |
681 | (list :eww-form eww-form | |
682 | :value (cdr (assq :value cont)) | |
683 | :type (downcase (cdr (assq :type cont))) | |
684 | :checked (cdr (assq :checked cont)) | |
685 | :name (cdr (assq :name cont)))) | |
686 | (put-text-property start (point) 'keymap eww-checkbox-map) | |
687 | (insert " "))) | |
688 | ||
689 | (defun eww-form-text (cont) | |
690 | (let ((start (point)) | |
691 | (type (downcase (or (cdr (assq :type cont)) | |
692 | "text"))) | |
693 | (value (or (cdr (assq :value cont)) "")) | |
694 | (width (string-to-number | |
695 | (or (cdr (assq :size cont)) | |
5edcc2dc KN |
696 | "40"))) |
697 | (readonly-property (if (or (cdr (assq :disabled cont)) | |
698 | (cdr (assq :readonly cont))) | |
699 | 'read-only | |
700 | 'inhibit-read-only))) | |
970ad972 G |
701 | (insert value) |
702 | (when (< (length value) width) | |
703 | (insert (make-string (- width (length value)) ? ))) | |
704 | (put-text-property start (point) 'face 'eww-form-text) | |
705 | (put-text-property start (point) 'local-map eww-text-map) | |
5edcc2dc | 706 | (put-text-property start (point) readonly-property t) |
970ad972 | 707 | (put-text-property start (point) 'eww-form |
5edcc2dc KN |
708 | (list :eww-form eww-form |
709 | :value value | |
710 | :type type | |
711 | :name (cdr (assq :name cont)))) | |
970ad972 G |
712 | (insert " "))) |
713 | ||
10240949 RS |
714 | (defconst eww-text-input-types '("text" "password" "textarea" |
715 | "color" "date" "datetime" "datetime-local" | |
716 | "email" "month" "number" "search" "tel" | |
717 | "time" "url" "week") | |
718 | "List of input types which represent a text input. | |
719 | See URL `https://developer.mozilla.org/en-US/docs/Web/HTML/Element/Input'.") | |
720 | ||
970ad972 | 721 | (defun eww-process-text-input (beg end length) |
dfbc66e3 | 722 | (let* ((form (get-text-property (min (1+ end) (point-max)) 'eww-form)) |
970ad972 G |
723 | (properties (text-properties-at end)) |
724 | (type (plist-get form :type))) | |
725 | (when (and form | |
10240949 | 726 | (member type eww-text-input-types)) |
970ad972 G |
727 | (cond |
728 | ((zerop length) | |
729 | ;; Delete some space at the end. | |
730 | (save-excursion | |
731 | (goto-char | |
732 | (if (equal type "textarea") | |
733 | (1- (line-end-position)) | |
734 | (eww-end-of-field))) | |
735 | (let ((new (- end beg))) | |
736 | (while (and (> new 0) | |
737 | (eql (following-char) ? )) | |
738 | (delete-region (point) (1+ (point))) | |
739 | (setq new (1- new)))) | |
740 | (set-text-properties beg end properties))) | |
741 | ((> length 0) | |
742 | ;; Add padding. | |
743 | (save-excursion | |
744 | (goto-char | |
745 | (if (equal type "textarea") | |
746 | (1- (line-end-position)) | |
747 | (eww-end-of-field))) | |
748 | (let ((start (point))) | |
749 | (insert (make-string length ? )) | |
750 | (set-text-properties start (point) properties))))) | |
751 | (let ((value (buffer-substring-no-properties | |
752 | (eww-beginning-of-field) | |
753 | (eww-end-of-field)))) | |
754 | (when (string-match " +\\'" value) | |
755 | (setq value (substring value 0 (match-beginning 0)))) | |
756 | (plist-put form :value value) | |
757 | (when (equal type "password") | |
758 | ;; Display passwords as asterisks. | |
759 | (let ((start (eww-beginning-of-field))) | |
760 | (put-text-property start (+ start (length value)) | |
761 | 'display (make-string (length value) ?*)))))))) | |
9ddf23f0 | 762 | |
c74cb344 | 763 | (defun eww-tag-textarea (cont) |
970ad972 G |
764 | (let ((start (point)) |
765 | (value (or (cdr (assq :value cont)) "")) | |
766 | (lines (string-to-number | |
767 | (or (cdr (assq :rows cont)) | |
768 | "10"))) | |
769 | (width (string-to-number | |
770 | (or (cdr (assq :cols cont)) | |
771 | "10"))) | |
772 | end) | |
773 | (shr-ensure-newline) | |
774 | (insert value) | |
775 | (shr-ensure-newline) | |
776 | (when (< (count-lines start (point)) lines) | |
777 | (dotimes (i (- lines (count-lines start (point)))) | |
778 | (insert "\n"))) | |
779 | (setq end (point-marker)) | |
780 | (goto-char start) | |
781 | (while (< (point) end) | |
782 | (end-of-line) | |
783 | (let ((pad (- width (- (point) (line-beginning-position))))) | |
784 | (when (> pad 0) | |
785 | (insert (make-string pad ? )))) | |
786 | (add-face-text-property (line-beginning-position) | |
fec0e828 | 787 | (point) 'eww-form-textarea) |
970ad972 G |
788 | (put-text-property (line-beginning-position) (point) |
789 | 'local-map eww-textarea-map) | |
790 | (forward-line 1)) | |
791 | (put-text-property start (point) 'eww-form | |
792 | (list :eww-form eww-form | |
793 | :value value | |
794 | :type "textarea" | |
795 | :name (cdr (assq :name cont)))))) | |
796 | ||
797 | (defun eww-tag-input (cont) | |
798 | (let ((type (downcase (or (cdr (assq :type cont)) | |
799 | "text"))) | |
800 | (start (point))) | |
801 | (cond | |
802 | ((or (equal type "checkbox") | |
803 | (equal type "radio")) | |
804 | (eww-form-checkbox cont)) | |
805 | ((equal type "submit") | |
806 | (eww-form-submit cont)) | |
807 | ((equal type "hidden") | |
808 | (let ((form eww-form) | |
809 | (name (cdr (assq :name cont)))) | |
810 | ;; Don't add <input type=hidden> elements repeatedly. | |
811 | (while (and form | |
812 | (or (not (consp (car form))) | |
813 | (not (eq (caar form) 'hidden)) | |
814 | (not (equal (plist-get (cdr (car form)) :name) | |
815 | name)))) | |
816 | (setq form (cdr form))) | |
817 | (unless form | |
818 | (nconc eww-form (list | |
819 | (list 'hidden | |
820 | :name name | |
821 | :value (cdr (assq :value cont)))))))) | |
822 | (t | |
823 | (eww-form-text cont))) | |
824 | (unless (= start (point)) | |
825 | (put-text-property start (1+ start) 'help-echo "Input field")))) | |
c74cb344 | 826 | |
9ddf23f0 LMI |
827 | (defun eww-tag-select (cont) |
828 | (shr-ensure-paragraph) | |
970ad972 | 829 | (let ((menu (list :name (cdr (assq :name cont)) |
9ddf23f0 LMI |
830 | :eww-form eww-form)) |
831 | (options nil) | |
970ad972 | 832 | (start (point)) |
9dd99753 KN |
833 | (max 0) |
834 | opelem) | |
835 | (if (eq (car (car cont)) 'optgroup) | |
836 | (dolist (groupelem cont) | |
837 | (unless (cdr (assq :disabled (cdr groupelem))) | |
838 | (setq opelem (append opelem (cdr (cdr groupelem)))))) | |
839 | (setq opelem cont)) | |
840 | (dolist (elem opelem) | |
9ddf23f0 LMI |
841 | (when (eq (car elem) 'option) |
842 | (when (cdr (assq :selected (cdr elem))) | |
843 | (nconc menu (list :value | |
844 | (cdr (assq :value (cdr elem)))))) | |
970ad972 G |
845 | (let ((display (or (cdr (assq 'text (cdr elem))) ""))) |
846 | (setq max (max max (length display))) | |
847 | (push (list 'item | |
848 | :value (cdr (assq :value (cdr elem))) | |
849 | :display display) | |
850 | options)))) | |
be2aa135 | 851 | (when options |
970ad972 | 852 | (setq options (nreverse options)) |
be2aa135 | 853 | ;; If we have no selected values, default to the first value. |
970ad972 | 854 | (unless (plist-get menu :value) |
be2aa135 LMI |
855 | (nconc menu (list :value (nth 2 (car options))))) |
856 | (nconc menu options) | |
970ad972 G |
857 | (let ((selected (eww-select-display menu))) |
858 | (insert selected | |
859 | (make-string (- max (length selected)) ? ))) | |
860 | (put-text-property start (point) 'eww-form menu) | |
861 | (add-face-text-property start (point) 'eww-form-select) | |
862 | (put-text-property start (point) 'keymap eww-select-map) | |
56890ecd KN |
863 | (unless (= start (point)) |
864 | (put-text-property start (1+ start) 'help-echo "select field")) | |
be2aa135 | 865 | (shr-ensure-paragraph)))) |
2644071e | 866 | |
970ad972 G |
867 | (defun eww-select-display (select) |
868 | (let ((value (plist-get select :value)) | |
869 | display) | |
870 | (dolist (elem select) | |
871 | (when (and (consp elem) | |
872 | (eq (car elem) 'item) | |
873 | (equal value (plist-get (cdr elem) :value))) | |
874 | (setq display (plist-get (cdr elem) :display)))) | |
875 | display)) | |
876 | ||
877 | (defun eww-change-select () | |
878 | "Change the value of the select drop-down menu under point." | |
879 | (interactive) | |
880 | (let* ((input (get-text-property (point) 'eww-form)) | |
970ad972 G |
881 | (completion-ignore-case t) |
882 | (options | |
883 | (delq nil | |
884 | (mapcar (lambda (elem) | |
885 | (and (consp elem) | |
886 | (eq (car elem) 'item) | |
887 | (cons (plist-get (cdr elem) :display) | |
888 | (plist-get (cdr elem) :value)))) | |
889 | input))) | |
890 | (display | |
891 | (completing-read "Change value: " options nil 'require-match)) | |
892 | (inhibit-read-only t)) | |
893 | (plist-put input :value (cdr (assoc-string display options t))) | |
894 | (goto-char | |
895 | (eww-update-field display)))) | |
896 | ||
897 | (defun eww-update-field (string) | |
898 | (let ((properties (text-properties-at (point))) | |
899 | (start (eww-beginning-of-field)) | |
900 | (end (1+ (eww-end-of-field)))) | |
901 | (delete-region start end) | |
902 | (insert string | |
903 | (make-string (- (- end start) (length string)) ? )) | |
904 | (set-text-properties start end properties) | |
905 | start)) | |
906 | ||
907 | (defun eww-toggle-checkbox () | |
908 | "Toggle the value of the checkbox under point." | |
909 | (interactive) | |
910 | (let* ((input (get-text-property (point) 'eww-form)) | |
911 | (type (plist-get input :type))) | |
912 | (if (equal type "checkbox") | |
913 | (goto-char | |
914 | (1+ | |
915 | (if (plist-get input :checked) | |
916 | (progn | |
917 | (plist-put input :checked nil) | |
4570dd16 | 918 | (eww-update-field eww-form-checkbox-symbol)) |
970ad972 | 919 | (plist-put input :checked t) |
4570dd16 | 920 | (eww-update-field eww-form-checkbox-selected-symbol)))) |
970ad972 G |
921 | ;; Radio button. Switch all other buttons off. |
922 | (let ((name (plist-get input :name))) | |
923 | (save-excursion | |
924 | (dolist (elem (eww-inputs (plist-get input :eww-form))) | |
925 | (when (equal (plist-get (cdr elem) :name) name) | |
926 | (goto-char (car elem)) | |
927 | (if (not (eq (cdr elem) input)) | |
928 | (progn | |
929 | (plist-put input :checked nil) | |
4570dd16 | 930 | (eww-update-field eww-form-checkbox-symbol)) |
970ad972 | 931 | (plist-put input :checked t) |
4570dd16 | 932 | (eww-update-field eww-form-checkbox-selected-symbol))))) |
970ad972 G |
933 | (forward-char 1))))) |
934 | ||
935 | (defun eww-inputs (form) | |
936 | (let ((start (point-min)) | |
937 | (inputs nil)) | |
938 | (while (and start | |
939 | (< start (point-max))) | |
940 | (when (or (get-text-property start 'eww-form) | |
941 | (setq start (next-single-property-change start 'eww-form))) | |
942 | (when (eq (plist-get (get-text-property start 'eww-form) :eww-form) | |
943 | form) | |
944 | (push (cons start (get-text-property start 'eww-form)) | |
945 | inputs)) | |
946 | (setq start (next-single-property-change start 'eww-form)))) | |
947 | (nreverse inputs))) | |
948 | ||
949 | (defun eww-input-value (input) | |
950 | (let ((type (plist-get input :type)) | |
951 | (value (plist-get input :value))) | |
952 | (cond | |
953 | ((equal type "textarea") | |
954 | (with-temp-buffer | |
955 | (insert value) | |
956 | (goto-char (point-min)) | |
957 | (while (re-search-forward "^ +\n\\| +$" nil t) | |
958 | (replace-match "" t t)) | |
959 | (buffer-string))) | |
960 | (t | |
961 | (if (string-match " +\\'" value) | |
962 | (substring value 0 (match-beginning 0)) | |
963 | value))))) | |
964 | ||
965 | (defun eww-submit () | |
966 | "Submit the current form." | |
967 | (interactive) | |
968 | (let* ((this-input (get-text-property (point) 'eww-form)) | |
969 | (form (plist-get this-input :eww-form)) | |
970 | values next-submit) | |
971 | (dolist (elem (sort (eww-inputs form) | |
972 | (lambda (o1 o2) | |
973 | (< (car o1) (car o2))))) | |
974 | (let* ((input (cdr elem)) | |
975 | (input-start (car elem)) | |
976 | (name (plist-get input :name))) | |
977 | (when name | |
978 | (cond | |
979 | ((member (plist-get input :type) '("checkbox" "radio")) | |
980 | (when (plist-get input :checked) | |
981 | (push (cons name (plist-get input :value)) | |
982 | values))) | |
983 | ((equal (plist-get input :type) "submit") | |
984 | ;; We want the values from buttons if we hit a button if | |
985 | ;; we hit enter on it, or if it's the first button after | |
986 | ;; the field we did hit return on. | |
987 | (when (or (eq input this-input) | |
988 | (and (not (eq input this-input)) | |
989 | (null next-submit) | |
990 | (> input-start (point)))) | |
991 | (setq next-submit t) | |
992 | (push (cons name (plist-get input :value)) | |
993 | values))) | |
994 | (t | |
995 | (push (cons name (eww-input-value input)) | |
996 | values)))))) | |
f22255bd LMI |
997 | (dolist (elem form) |
998 | (when (and (consp elem) | |
999 | (eq (car elem) 'hidden)) | |
1000 | (push (cons (plist-get (cdr elem) :name) | |
1001 | (plist-get (cdr elem) :value)) | |
1002 | values))) | |
c74cb344 G |
1003 | (if (and (stringp (cdr (assq :method form))) |
1004 | (equal (downcase (cdr (assq :method form))) "post")) | |
1005 | (let ((url-request-method "POST") | |
1006 | (url-request-extra-headers | |
1007 | '(("Content-Type" . "application/x-www-form-urlencoded"))) | |
1008 | (url-request-data (mm-url-encode-www-form-urlencoded values))) | |
1009 | (eww-browse-url (shr-expand-url (cdr (assq :action form)) | |
1010 | eww-current-url))) | |
1011 | (eww-browse-url | |
1012 | (concat | |
1013 | (if (cdr (assq :action form)) | |
1014 | (shr-expand-url (cdr (assq :action form)) | |
1015 | eww-current-url) | |
1016 | eww-current-url) | |
1017 | "?" | |
1018 | (mm-url-encode-www-form-urlencoded values)))))) | |
2644071e | 1019 | |
b2afb3ea | 1020 | (defun eww-browse-with-external-browser (&optional url) |
f865b474 | 1021 | "Browse the current URL with an external browser. |
0ebd92a3 | 1022 | The browser to used is specified by the `shr-external-browser' variable." |
f865b474 | 1023 | (interactive) |
b2afb3ea | 1024 | (funcall shr-external-browser (or url eww-current-url))) |
f865b474 | 1025 | |
513562a1 LMI |
1026 | (defun eww-follow-link (&optional external mouse-event) |
1027 | "Browse the URL under point. | |
1028 | If EXTERNAL, browse the URL using `shr-external-browser'." | |
1029 | (interactive (list current-prefix-arg last-nonmenu-event)) | |
1030 | (mouse-set-point mouse-event) | |
1031 | (let ((url (get-text-property (point) 'shr-url))) | |
1032 | (cond | |
1033 | ((not url) | |
1034 | (message "No link under point")) | |
1035 | ((string-match "^mailto:" url) | |
1036 | (browse-url-mail url)) | |
1037 | (external | |
1038 | (funcall shr-external-browser url)) | |
1039 | ;; This is a #target url in the same page as the current one. | |
1040 | ((and (url-target (url-generic-parse-url url)) | |
1041 | (eww-same-page-p url eww-current-url)) | |
1042 | (eww-save-history) | |
1043 | (eww-display-html 'utf8 url eww-current-dom)) | |
1044 | (t | |
1045 | (eww-browse-url url))))) | |
1046 | ||
1047 | (defun eww-same-page-p (url1 url2) | |
f224e500 | 1048 | "Return non-nil if both URLs represent the same page. |
513562a1 LMI |
1049 | Differences in #targets are ignored." |
1050 | (let ((obj1 (url-generic-parse-url url1)) | |
1051 | (obj2 (url-generic-parse-url url2))) | |
1052 | (setf (url-target obj1) nil) | |
1053 | (setf (url-target obj2) nil) | |
1054 | (equal (url-recreate-url obj1) (url-recreate-url obj2)))) | |
1055 | ||
16f74f10 | 1056 | (defun eww-copy-page-url () |
b89fc156 | 1057 | (interactive) |
16f74f10 | 1058 | (message "%s" eww-current-url) |
b89fc156 | 1059 | (kill-new eww-current-url)) |
16f74f10 | 1060 | |
bfbc93a1 IK |
1061 | (defun eww-download () |
1062 | "Download URL under point to `eww-download-directory'." | |
1063 | (interactive) | |
1064 | (let ((url (get-text-property (point) 'shr-url))) | |
1065 | (if (not url) | |
1066 | (message "No URL under point") | |
1067 | (url-retrieve url 'eww-download-callback (list url))))) | |
1068 | ||
1069 | (defun eww-download-callback (status url) | |
1070 | (unless (plist-get status :error) | |
1071 | (let* ((obj (url-generic-parse-url url)) | |
1072 | (path (car (url-path-and-query obj))) | |
1073 | (file (eww-make-unique-file-name (file-name-nondirectory path) | |
1074 | eww-download-path))) | |
1075 | (write-file file) | |
1076 | (message "Saved %s" file)))) | |
1077 | ||
1078 | (defun eww-make-unique-file-name (file directory) | |
1079 | (cond | |
1080 | ((zerop (length file)) | |
1081 | (setq file "!")) | |
1082 | ((string-match "\\`[.]" file) | |
1083 | (setq file (concat "!" file)))) | |
fde38d49 | 1084 | (let ((count 1)) |
bfbc93a1 IK |
1085 | (while (file-exists-p (expand-file-name file directory)) |
1086 | (setq file | |
1087 | (if (string-match "\\`\\(.*\\)\\([.][^.]+\\)" file) | |
1088 | (format "%s(%d)%s" (match-string 1 file) | |
1089 | count (match-string 2 file)) | |
1090 | (format "%s(%d)" file count))) | |
1091 | (setq count (1+ count))) | |
1092 | (expand-file-name file directory))) | |
1093 | ||
2b4f0506 LMI |
1094 | ;;; Bookmarks code |
1095 | ||
1096 | (defvar eww-bookmarks nil) | |
1097 | ||
1098 | (defun eww-add-bookmark () | |
1099 | "Add the current page to the bookmarks." | |
1100 | (interactive) | |
1101 | (eww-read-bookmarks) | |
1102 | (dolist (bookmark eww-bookmarks) | |
1103 | (when (equal eww-current-url | |
1104 | (plist-get bookmark :url)) | |
5e1901c1 | 1105 | (user-error "Already bookmarked"))) |
e47112ee TZ |
1106 | (if (y-or-n-p "bookmark this page? ") |
1107 | (progn | |
1108 | (let ((title (replace-regexp-in-string "[\n\t\r]" " " eww-current-title))) | |
1109 | (setq title (replace-regexp-in-string "\\` +\\| +\\'" "" title)) | |
1110 | (push (list :url eww-current-url | |
1111 | :title title | |
1112 | :time (current-time-string)) | |
1113 | eww-bookmarks)) | |
1114 | (eww-write-bookmarks) | |
1115 | (message "Bookmarked %s (%s)" eww-current-url eww-current-title)))) | |
2b4f0506 LMI |
1116 | |
1117 | (defun eww-write-bookmarks () | |
1118 | (with-temp-file (expand-file-name "eww-bookmarks" user-emacs-directory) | |
1119 | (insert ";; Auto-generated file; don't edit\n") | |
1120 | (pp eww-bookmarks (current-buffer)))) | |
1121 | ||
1122 | (defun eww-read-bookmarks () | |
99906aa0 LL |
1123 | (let ((file (expand-file-name "eww-bookmarks" user-emacs-directory))) |
1124 | (setq eww-bookmarks | |
1125 | (unless (zerop (or (nth 7 (file-attributes file)) 0)) | |
1126 | (with-temp-buffer | |
1127 | (insert-file-contents file) | |
1128 | (read (current-buffer))))))) | |
2b4f0506 LMI |
1129 | |
1130 | (defun eww-list-bookmarks () | |
1131 | "Display the bookmarks." | |
1132 | (interactive) | |
1133 | (eww-bookmark-prepare) | |
1134 | (pop-to-buffer "*eww bookmarks*")) | |
1135 | ||
1136 | (defun eww-bookmark-prepare () | |
1137 | (eww-read-bookmarks) | |
5e1901c1 RS |
1138 | (unless eww-bookmarks |
1139 | (user-error "No bookmarks are defined")) | |
2b4f0506 LMI |
1140 | (set-buffer (get-buffer-create "*eww bookmarks*")) |
1141 | (eww-bookmark-mode) | |
1142 | (let ((format "%-40s %s") | |
1143 | (inhibit-read-only t) | |
1144 | start url) | |
1145 | (erase-buffer) | |
1146 | (setq header-line-format (concat " " (format format "URL" "Title"))) | |
1147 | (dolist (bookmark eww-bookmarks) | |
1148 | (setq start (point)) | |
1149 | (setq url (plist-get bookmark :url)) | |
1150 | (when (> (length url) 40) | |
1151 | (setq url (substring url 0 40))) | |
1152 | (insert (format format url | |
1153 | (plist-get bookmark :title)) | |
1154 | "\n") | |
1155 | (put-text-property start (1+ start) 'eww-bookmark bookmark)) | |
1156 | (goto-char (point-min)))) | |
1157 | ||
1158 | (defvar eww-bookmark-kill-ring nil) | |
1159 | ||
1160 | (defun eww-bookmark-kill () | |
1161 | "Kill the current bookmark." | |
1162 | (interactive) | |
1163 | (let* ((start (line-beginning-position)) | |
1164 | (bookmark (get-text-property start 'eww-bookmark)) | |
1165 | (inhibit-read-only t)) | |
1166 | (unless bookmark | |
5e1901c1 | 1167 | (user-error "No bookmark on the current line")) |
2b4f0506 LMI |
1168 | (forward-line 1) |
1169 | (push (buffer-substring start (point)) eww-bookmark-kill-ring) | |
1170 | (delete-region start (point)) | |
1171 | (setq eww-bookmarks (delq bookmark eww-bookmarks)) | |
1172 | (eww-write-bookmarks))) | |
1173 | ||
1174 | (defun eww-bookmark-yank () | |
1175 | "Yank a previously killed bookmark to the current line." | |
1176 | (interactive) | |
1177 | (unless eww-bookmark-kill-ring | |
5e1901c1 | 1178 | (user-error "No previously killed bookmark")) |
2b4f0506 LMI |
1179 | (beginning-of-line) |
1180 | (let ((inhibit-read-only t) | |
1181 | (start (point)) | |
1182 | bookmark) | |
1183 | (insert (pop eww-bookmark-kill-ring)) | |
1184 | (setq bookmark (get-text-property start 'eww-bookmark)) | |
1185 | (if (= start (point-min)) | |
1186 | (push bookmark eww-bookmarks) | |
1187 | (let ((line (count-lines start (point)))) | |
1188 | (setcdr (nthcdr (1- line) eww-bookmarks) | |
1189 | (cons bookmark (nthcdr line eww-bookmarks))))) | |
1190 | (eww-write-bookmarks))) | |
1191 | ||
2b4f0506 LMI |
1192 | (defun eww-bookmark-browse () |
1193 | "Browse the bookmark under point in eww." | |
1194 | (interactive) | |
1195 | (let ((bookmark (get-text-property (line-beginning-position) 'eww-bookmark))) | |
1196 | (unless bookmark | |
5e1901c1 | 1197 | (user-error "No bookmark on the current line")) |
58f2b9a5 | 1198 | (quit-window) |
e47112ee | 1199 | (eww-browse-url (plist-get bookmark :url)))) |
2b4f0506 LMI |
1200 | |
1201 | (defun eww-next-bookmark () | |
1202 | "Go to the next bookmark in the list." | |
1203 | (interactive) | |
1204 | (let ((first nil) | |
1205 | bookmark) | |
1206 | (unless (get-buffer "*eww bookmarks*") | |
1207 | (setq first t) | |
1208 | (eww-bookmark-prepare)) | |
1209 | (with-current-buffer (get-buffer "*eww bookmarks*") | |
1210 | (when (and (not first) | |
1211 | (not (eobp))) | |
1212 | (forward-line 1)) | |
1213 | (setq bookmark (get-text-property (line-beginning-position) | |
1214 | 'eww-bookmark)) | |
1215 | (unless bookmark | |
5e1901c1 | 1216 | (user-error "No next bookmark"))) |
2b4f0506 LMI |
1217 | (eww-browse-url (plist-get bookmark :url)))) |
1218 | ||
1219 | (defun eww-previous-bookmark () | |
1220 | "Go to the previous bookmark in the list." | |
1221 | (interactive) | |
1222 | (let ((first nil) | |
1223 | bookmark) | |
1224 | (unless (get-buffer "*eww bookmarks*") | |
1225 | (setq first t) | |
1226 | (eww-bookmark-prepare)) | |
1227 | (with-current-buffer (get-buffer "*eww bookmarks*") | |
1228 | (if first | |
1229 | (goto-char (point-max)) | |
1230 | (beginning-of-line)) | |
1231 | ;; On the final line. | |
1232 | (when (eolp) | |
1233 | (forward-line -1)) | |
1234 | (if (bobp) | |
5e1901c1 | 1235 | (user-error "No previous bookmark") |
2b4f0506 LMI |
1236 | (forward-line -1)) |
1237 | (setq bookmark (get-text-property (line-beginning-position) | |
1238 | 'eww-bookmark))) | |
1239 | (eww-browse-url (plist-get bookmark :url)))) | |
1240 | ||
1241 | (defvar eww-bookmark-mode-map | |
1242 | (let ((map (make-sparse-keymap))) | |
1243 | (suppress-keymap map) | |
58f2b9a5 | 1244 | (define-key map "q" 'quit-window) |
2b4f0506 LMI |
1245 | (define-key map [(control k)] 'eww-bookmark-kill) |
1246 | (define-key map [(control y)] 'eww-bookmark-yank) | |
1247 | (define-key map "\r" 'eww-bookmark-browse) | |
5e1901c1 RS |
1248 | |
1249 | (easy-menu-define nil map | |
1250 | "Menu for `eww-bookmark-mode-map'." | |
1251 | '("Eww Bookmark" | |
58f2b9a5 | 1252 | ["Exit" quit-window t] |
5e1901c1 RS |
1253 | ["Browse" eww-bookmark-browse |
1254 | :active (get-text-property (line-beginning-position) 'eww-bookmark)] | |
1255 | ["Kill" eww-bookmark-kill | |
1256 | :active (get-text-property (line-beginning-position) 'eww-bookmark)] | |
1257 | ["Yank" eww-bookmark-yank | |
1258 | :active eww-bookmark-kill-ring])) | |
2b4f0506 LMI |
1259 | map)) |
1260 | ||
1261 | (define-derived-mode eww-bookmark-mode nil "eww bookmarks" | |
1262 | "Mode for listing bookmarks. | |
1263 | ||
1264 | \\{eww-bookmark-mode-map}" | |
1265 | (buffer-disable-undo) | |
1266 | (setq buffer-read-only t | |
1267 | truncate-lines t)) | |
1268 | ||
d49fbfd6 TZ |
1269 | ;;; History code |
1270 | ||
1271 | (defun eww-save-history () | |
1272 | (push (list :url eww-current-url | |
1273 | :title eww-current-title | |
1274 | :point (point) | |
1275 | :dom eww-current-dom | |
1276 | :source eww-current-source | |
1277 | :text (buffer-string)) | |
1278 | eww-history)) | |
1279 | ||
1280 | (defun eww-list-histories () | |
1281 | "List the eww-histories." | |
1282 | (interactive) | |
1283 | (when (null eww-history) | |
1284 | (error "No eww-histories are defined")) | |
1285 | (set-buffer (get-buffer-create "*eww history*")) | |
1286 | (eww-history-mode) | |
1287 | (let ((inhibit-read-only t) | |
1288 | (domain-length 0) | |
1289 | (title-length 0) | |
1290 | url title format start) | |
1291 | (erase-buffer) | |
1292 | (dolist (history eww-history) | |
1293 | (setq start (point)) | |
1294 | (setq domain-length (max domain-length (length (plist-get history :url)))) | |
1295 | (setq title-length (max title-length (length (plist-get history :title)))) | |
1296 | ) | |
1297 | (setq format (format "%%-%ds %%-%ds" title-length domain-length) | |
1298 | header-line-format | |
1299 | (concat " " (format format "Title" "URL"))) | |
1300 | ||
1301 | (dolist (history eww-history) | |
1302 | (setq url (plist-get history :url)) | |
1303 | (setq title (plist-get history :title)) | |
1304 | (insert (format format title url)) | |
1305 | (insert "\n") | |
1306 | (put-text-property start (point) 'eww-history history) | |
1307 | ) | |
1308 | (goto-char (point-min))) | |
1309 | (pop-to-buffer "*eww history*") | |
1310 | ) | |
1311 | ||
1312 | (defun eww-history-browse () | |
1313 | "Browse the history under point in eww." | |
1314 | (interactive) | |
1315 | (let ((history (get-text-property (line-beginning-position) 'eww-history))) | |
1316 | (unless history | |
1317 | (error "No history on the current line")) | |
1318 | (eww-history-quit) | |
1319 | (pop-to-buffer "*eww*") | |
1320 | (eww-browse-url (plist-get history :url)))) | |
1321 | ||
1322 | (defun eww-history-quit () | |
1323 | "Kill the current buffer." | |
1324 | (interactive) | |
1325 | (kill-buffer (current-buffer))) | |
1326 | ||
1327 | (defvar eww-history-kill-ring nil) | |
1328 | ||
1329 | (defun eww-history-kill () | |
1330 | "Kill the current history." | |
1331 | (interactive) | |
1332 | (let* ((start (line-beginning-position)) | |
1333 | (history (get-text-property start 'eww-history)) | |
1334 | (inhibit-read-only t)) | |
1335 | (unless history | |
1336 | (error "No history on the current line")) | |
1337 | (forward-line 1) | |
1338 | (push (buffer-substring start (point)) eww-history-kill-ring) | |
1339 | (delete-region start (point)) | |
1340 | (setq eww-history (delq history eww-history)) | |
1341 | )) | |
1342 | ||
1343 | (defvar eww-history-mode-map | |
1344 | (let ((map (make-sparse-keymap))) | |
1345 | (suppress-keymap map) | |
1346 | (define-key map "q" 'eww-history-quit) | |
1347 | (define-key map [(control k)] 'eww-history-kill) | |
1348 | (define-key map "\r" 'eww-history-browse) | |
1349 | (define-key map "n" 'next-error-no-select) | |
1350 | (define-key map "p" 'previous-error-no-select) | |
1351 | map)) | |
1352 | ||
1353 | (define-derived-mode eww-history-mode nil "eww history" | |
1354 | "Mode for listing eww-histories. | |
1355 | ||
1356 | \\{eww-history-mode-map}" | |
1357 | (buffer-disable-undo) | |
1358 | (setq buffer-read-only t | |
1359 | truncate-lines t)) | |
1360 | ||
266c63b5 AK |
1361 | (provide 'eww) |
1362 | ||
1363 | ;;; eww.el ends here |