HCoop / bpt / emacs.git / blame
| Commit | Line | Data |
|---|---|---|
| 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 | ||
| 970ad972 G |
59 | (defface eww-form-submit |
| 60 | '((((type x w32 ns) (class color)) ; Like default mode line | |
| 61 | :box (:line-width 2 :style released-button) | |
| 62 | :background "#808080" :foreground "black")) | |
| 63 | "Face for eww buffer buttons." | |
| 64 | :version "24.4" | |
| 65 | :group 'eww) | |
| 66 | ||
| 67 | (defface eww-form-checkbox | |
| 68 | '((((type x w32 ns) (class color)) ; Like default mode line | |
| 69 | :box (:line-width 2 :style released-button) | |
| 70 | :background "lightgrey" :foreground "black")) | |
| 71 | "Face for eww buffer buttons." | |
| 72 | :version "24.4" | |
| 73 | :group 'eww) | |
| 74 | ||
| 75 | (defface eww-form-select | |
| be2aa135 LMI |
76 | '((((type x w32 ns) (class color)) ; Like default mode line |
| 77 | :box (:line-width 2 :style released-button) | |
| 78 | :background "lightgrey" :foreground "black")) | |
| 79 | "Face for eww buffer buttons." | |
| 80 | :version "24.4" | |
| 81 | :group 'eww) | |
| 82 | ||
| 970ad972 G |
83 | (defface eww-form-text |
| 84 | '((t (:background "#505050" | |
| 85 | :foreground "white" | |
| 86 | :box (:line-width 1)))) | |
| 87 | "Face for eww text inputs." | |
| 88 | :version "24.4" | |
| 89 | :group 'eww) | |
| 90 | ||
| 266c63b5 | 91 | (defvar eww-current-url nil) |
| c74cb344 G |
92 | (defvar eww-current-title "" |
| 93 | "Title of current page.") | |
| 266c63b5 | 94 | (defvar eww-history nil) |
| d3f0f918 | 95 | (defvar eww-history-position 0) |
| 266c63b5 | 96 | |
| 924d6997 G |
97 | (defvar eww-next-url nil) |
| 98 | (defvar eww-previous-url nil) | |
| 99 | (defvar eww-up-url nil) | |
| 970ad972 G |
100 | (defvar eww-home-url nil) |
| 101 | (defvar eww-start-url nil) | |
| 102 | (defvar eww-contents-url nil) | |
| 924d6997 | 103 | |
| d583b36b | 104 | ;;;###autoload |
| 266c63b5 | 105 | (defun eww (url) |
| a3ca09b9 IK |
106 | "Fetch URL and render the page. |
| 107 | If the input doesn't look like an URL or a domain name, the | |
| 108 | word(s) will be searched for via `eww-search-prefix'." | |
| 109 | (interactive "sEnter URL or keywords: ") | |
| 110 | (if (and (= (length (split-string url)) 1) | |
| 111 | (> (length (split-string url "\\.")) 1)) | |
| 71d4c19d IK |
112 | (progn |
| 113 | (unless (string-match-p "\\`[a-zA-Z][-a-zA-Z0-9+.]*://" url) | |
| 114 | (setq url (concat "http://" url))) | |
| 115 | ;; some site don't redirect final / | |
| 116 | (when (string= (url-filename (url-generic-parse-url url)) "") | |
| 117 | (setq url (concat url "/")))) | |
| be549ce6 | 118 | (unless (string-match-p "\\'file:" url) |
| b89fc156 IK |
119 | (setq url (concat eww-search-prefix |
| 120 | (replace-regexp-in-string " " "+" url))))) | |
| 266c63b5 AK |
121 | (url-retrieve url 'eww-render (list url))) |
| 122 | ||
| 924d6997 G |
123 | ;;;###autoload |
| 124 | (defun eww-open-file (file) | |
| 125 | "Render a file using EWW." | |
| 126 | (interactive "fFile: ") | |
| 127 | (eww (concat "file://" (expand-file-name file)))) | |
| 128 | ||
| 266c63b5 | 129 | (defun eww-render (status url &optional point) |
| c74cb344 G |
130 | (let ((redirect (plist-get status :redirect))) |
| 131 | (when redirect | |
| 132 | (setq url redirect))) | |
| 924d6997 G |
133 | (set (make-local-variable 'eww-next-url) nil) |
| 134 | (set (make-local-variable 'eww-previous-url) nil) | |
| 135 | (set (make-local-variable 'eww-up-url) nil) | |
| 970ad972 G |
136 | (set (make-local-variable 'eww-home-url) nil) |
| 137 | (set (make-local-variable 'eww-start-url) nil) | |
| 138 | (set (make-local-variable 'eww-contents-url) nil) | |
| 266c63b5 | 139 | (let* ((headers (eww-parse-headers)) |
| c74cb344 G |
140 | (shr-target-id |
| 141 | (and (string-match "#\\(.*\\)" url) | |
| 142 | (match-string 1 url))) | |
| 266c63b5 AK |
143 | (content-type |
| 144 | (mail-header-parse-content-type | |
| 145 | (or (cdr (assoc "content-type" headers)) | |
| 146 | "text/plain"))) | |
| 147 | (charset (intern | |
| 148 | (downcase | |
| 149 | (or (cdr (assq 'charset (cdr content-type))) | |
| d652f4d0 G |
150 | (eww-detect-charset (equal (car content-type) |
| 151 | "text/html")) | |
| 266c63b5 AK |
152 | "utf8")))) |
| 153 | (data-buffer (current-buffer))) | |
| 154 | (unwind-protect | |
| 155 | (progn | |
| 156 | (cond | |
| 157 | ((equal (car content-type) "text/html") | |
| 158 | (eww-display-html charset url)) | |
| 159 | ((string-match "^image/" (car content-type)) | |
| 160 | (eww-display-image)) | |
| 161 | (t | |
| 162 | (eww-display-raw charset))) | |
| c74cb344 G |
163 | (cond |
| 164 | (point | |
| 165 | (goto-char point)) | |
| 166 | (shr-target-id | |
| 167 | (let ((point (next-single-property-change | |
| 168 | (point-min) 'shr-target-id))) | |
| 169 | (when point | |
| 170 | (goto-char (1+ point))))))) | |
| 266c63b5 AK |
171 | (kill-buffer data-buffer)))) |
| 172 | ||
| 173 | (defun eww-parse-headers () | |
| 174 | (let ((headers nil)) | |
| d652f4d0 | 175 | (goto-char (point-min)) |
| 266c63b5 AK |
176 | (while (and (not (eobp)) |
| 177 | (not (eolp))) | |
| 178 | (when (looking-at "\\([^:]+\\): *\\(.*\\)") | |
| 179 | (push (cons (downcase (match-string 1)) | |
| 180 | (match-string 2)) | |
| 181 | headers)) | |
| 182 | (forward-line 1)) | |
| 183 | (unless (eobp) | |
| 184 | (forward-line 1)) | |
| 185 | headers)) | |
| 186 | ||
| db5a34ca KY |
187 | (defun eww-detect-charset (html-p) |
| 188 | (let ((case-fold-search t) | |
| 189 | (pt (point))) | |
| 190 | (or (and html-p | |
| 191 | (re-search-forward | |
| b89fc156 | 192 | "<meta[\t\n\r ]+[^>]*charset=\"?\\([^\t\n\r \"/>]+\\)[\\\"'.*]" nil t) |
| db5a34ca KY |
193 | (goto-char pt) |
| 194 | (match-string 1)) | |
| 195 | (and (looking-at | |
| 196 | "[\t\n\r ]*<\\?xml[\t\n\r ]+[^>]*encoding=\"\\([^\"]+\\)") | |
| 197 | (match-string 1))))) | |
| 198 | ||
| 266c63b5 AK |
199 | (defun eww-display-html (charset url) |
| 200 | (unless (eq charset 'utf8) | |
| 201 | (decode-coding-region (point) (point-max) charset)) | |
| 202 | (let ((document | |
| 203 | (list | |
| 204 | 'base (list (cons 'href url)) | |
| 205 | (libxml-parse-html-region (point) (point-max))))) | |
| 206 | (eww-setup-buffer) | |
| 207 | (setq eww-current-url url) | |
| c74cb344 | 208 | (eww-update-header-line-format) |
| 2644071e | 209 | (let ((inhibit-read-only t) |
| 970ad972 | 210 | (after-change-functions nil) |
| c74cb344 | 211 | (shr-width nil) |
| 2644071e | 212 | (shr-external-rendering-functions |
| c74cb344 G |
213 | '((title . eww-tag-title) |
| 214 | (form . eww-tag-form) | |
| 2644071e | 215 | (input . eww-tag-input) |
| c74cb344 G |
216 | (textarea . eww-tag-textarea) |
| 217 | (body . eww-tag-body) | |
| 924d6997 G |
218 | (select . eww-tag-select) |
| 219 | (link . eww-tag-link) | |
| 220 | (a . eww-tag-a)))) | |
| 970ad972 | 221 | (shr-insert-document document)) |
| 266c63b5 AK |
222 | (goto-char (point-min)))) |
| 223 | ||
| 924d6997 G |
224 | (defun eww-handle-link (cont) |
| 225 | (let* ((rel (assq :rel cont)) | |
| 226 | (href (assq :href cont)) | |
| 970ad972 G |
227 | (where (assoc |
| 228 | ;; The text associated with :rel is case-insensitive. | |
| 229 | (if rel (downcase (cdr rel))) | |
| 924d6997 | 230 | '(("next" . eww-next-url) |
| 970ad972 G |
231 | ;; Texinfo uses "previous", but HTML specifies |
| 232 | ;; "prev", so recognize both. | |
| 924d6997 | 233 | ("previous" . eww-previous-url) |
| 970ad972 G |
234 | ("prev" . eww-previous-url) |
| 235 | ;; HTML specifies "start" but also "contents", | |
| 236 | ;; and Gtk seems to use "home". Recognize | |
| 237 | ;; them all; but store them in different | |
| 238 | ;; variables so that we can readily choose the | |
| 239 | ;; "best" one. | |
| 240 | ("start" . eww-start-url) | |
| 241 | ("home" . eww-home-url) | |
| 242 | ("contents" . eww-contents-url) | |
| 924d6997 G |
243 | ("up" . eww-up-url))))) |
| 244 | (and href | |
| 245 | where | |
| 246 | (set (cdr where) (cdr href))))) | |
| 247 | ||
| 248 | (defun eww-tag-link (cont) | |
| 249 | (eww-handle-link cont) | |
| 250 | (shr-generic cont)) | |
| 251 | ||
| 252 | (defun eww-tag-a (cont) | |
| 253 | (eww-handle-link cont) | |
| 254 | (shr-tag-a cont)) | |
| 255 | ||
| c74cb344 G |
256 | (defun eww-update-header-line-format () |
| 257 | (if eww-header-line-format | |
| d80a808f LMI |
258 | (setq header-line-format |
| 259 | (replace-regexp-in-string | |
| 260 | "%" "%%" | |
| 261 | (format-spec eww-header-line-format | |
| 262 | `((?u . ,eww-current-url) | |
| 263 | (?t . ,eww-current-title))))) | |
| c74cb344 G |
264 | (setq header-line-format nil))) |
| 265 | ||
| 266 | (defun eww-tag-title (cont) | |
| 267 | (setq eww-current-title "") | |
| 268 | (dolist (sub cont) | |
| 269 | (when (eq (car sub) 'text) | |
| 270 | (setq eww-current-title (concat eww-current-title (cdr sub))))) | |
| 271 | (eww-update-header-line-format)) | |
| 272 | ||
| 273 | (defun eww-tag-body (cont) | |
| 274 | (let* ((start (point)) | |
| 275 | (fgcolor (cdr (or (assq :fgcolor cont) | |
| 276 | (assq :text cont)))) | |
| 277 | (bgcolor (cdr (assq :bgcolor cont))) | |
| 278 | (shr-stylesheet (list (cons 'color fgcolor) | |
| 279 | (cons 'background-color bgcolor)))) | |
| 280 | (shr-generic cont) | |
| 281 | (eww-colorize-region start (point) fgcolor bgcolor))) | |
| 282 | ||
| 283 | (defun eww-colorize-region (start end fg &optional bg) | |
| 284 | (when (or fg bg) | |
| 285 | (let ((new-colors (shr-color-check fg bg))) | |
| 286 | (when new-colors | |
| 287 | (when fg | |
| 544d4594 | 288 | (add-face-text-property start end |
| 970ad972 G |
289 | (list :foreground (cadr new-colors)) |
| 290 | t)) | |
| c74cb344 | 291 | (when bg |
| 544d4594 | 292 | (add-face-text-property start end |
| 970ad972 G |
293 | (list :background (car new-colors)) |
| 294 | t)))))) | |
| c74cb344 | 295 | |
| 266c63b5 AK |
296 | (defun eww-display-raw (charset) |
| 297 | (let ((data (buffer-substring (point) (point-max)))) | |
| 298 | (eww-setup-buffer) | |
| 299 | (let ((inhibit-read-only t)) | |
| 300 | (insert data)) | |
| 301 | (goto-char (point-min)))) | |
| 302 | ||
| 303 | (defun eww-display-image () | |
| 304 | (let ((data (buffer-substring (point) (point-max)))) | |
| 305 | (eww-setup-buffer) | |
| 306 | (let ((inhibit-read-only t)) | |
| 307 | (shr-put-image data nil)) | |
| 308 | (goto-char (point-min)))) | |
| 309 | ||
| 310 | (defun eww-setup-buffer () | |
| 311 | (pop-to-buffer (get-buffer-create "*eww*")) | |
| 2644071e | 312 | (remove-overlays) |
| 266c63b5 AK |
313 | (let ((inhibit-read-only t)) |
| 314 | (erase-buffer)) | |
| 315 | (eww-mode)) | |
| 316 | ||
| 317 | (defvar eww-mode-map | |
| 318 | (let ((map (make-sparse-keymap))) | |
| 319 | (suppress-keymap map) | |
| 320 | (define-key map "q" 'eww-quit) | |
| f22255bd | 321 | (define-key map "g" 'eww-reload) |
| 7304e4dd LMI |
322 | (define-key map [tab] 'shr-next-link) |
| 323 | (define-key map [backtab] 'shr-previous-link) | |
| 266c63b5 AK |
324 | (define-key map [delete] 'scroll-down-command) |
| 325 | (define-key map "\177" 'scroll-down-command) | |
| 326 | (define-key map " " 'scroll-up-command) | |
| 924d6997 | 327 | (define-key map "l" 'eww-back-url) |
| d3f0f918 | 328 | (define-key map "f" 'eww-forward-url) |
| 924d6997 | 329 | (define-key map "n" 'eww-next-url) |
| 266c63b5 | 330 | (define-key map "p" 'eww-previous-url) |
| 924d6997 G |
331 | (define-key map "u" 'eww-up-url) |
| 332 | (define-key map "t" 'eww-top-url) | |
| 16f74f10 | 333 | (define-key map "&" 'eww-browse-with-external-browser) |
| bfbc93a1 | 334 | (define-key map "d" 'eww-download) |
| 16f74f10 | 335 | (define-key map "w" 'eww-copy-page-url) |
| 266c63b5 AK |
336 | map)) |
| 337 | ||
| d652f4d0 | 338 | (define-derived-mode eww-mode nil "eww" |
| 266c63b5 AK |
339 | "Mode for browsing the web. |
| 340 | ||
| 341 | \\{eww-mode-map}" | |
| 266c63b5 | 342 | (set (make-local-variable 'eww-current-url) 'author) |
| 970ad972 G |
343 | (set (make-local-variable 'browse-url-browser-function) 'eww-browse-url) |
| 344 | (set (make-local-variable 'after-change-functions) 'eww-process-text-input) | |
| 345 | ;;(setq buffer-read-only t) | |
| 346 | ) | |
| 266c63b5 | 347 | |
| d3f0f918 LMI |
348 | (defun eww-save-history () |
| 349 | (let ((elem (list :url eww-current-url | |
| 350 | :point (point) | |
| 351 | :text (buffer-string)))) | |
| 352 | (if (or (zerop eww-history-position) | |
| 353 | (= eww-history-position (length eww-history))) | |
| 354 | (push elem eww-history) | |
| 355 | (setcdr (nthcdr eww-history-position eww-history) | |
| 356 | (cons elem (nthcdr eww-history-position eww-history)))))) | |
| 357 | ||
| 266c63b5 | 358 | (defun eww-browse-url (url &optional new-window) |
| 970ad972 G |
359 | (when (and (equal major-mode 'eww-mode) |
| 360 | eww-current-url) | |
| d3f0f918 | 361 | (eww-save-history)) |
| 5c3087e9 | 362 | (eww url)) |
| 266c63b5 AK |
363 | |
| 364 | (defun eww-quit () | |
| 365 | "Exit the Emacs Web Wowser." | |
| 366 | (interactive) | |
| 367 | (setq eww-history nil) | |
| 368 | (kill-buffer (current-buffer))) | |
| 369 | ||
| 924d6997 | 370 | (defun eww-back-url () |
| 266c63b5 AK |
371 | "Go to the previously displayed page." |
| 372 | (interactive) | |
| d3f0f918 | 373 | (when (>= eww-history-position (length eww-history)) |
| 266c63b5 | 374 | (error "No previous page")) |
| d3f0f918 LMI |
375 | (eww-restore-history |
| 376 | (if (not (zerop eww-history-position)) | |
| 377 | (elt eww-history eww-history-position) | |
| 378 | (eww-save-history) | |
| 379 | (elt eww-history (1+ eww-history-position)))) | |
| 380 | (setq eww-history-position (1+ eww-history-position))) | |
| 381 | ||
| 382 | (defun eww-forward-url () | |
| 383 | "Go to the next displayed page." | |
| 384 | (interactive) | |
| 385 | (when (zerop eww-history-position) | |
| 386 | (error "No next page")) | |
| 387 | (eww-restore-history (elt eww-history (1- eww-history-position))) | |
| 388 | (setq eww-history-position (1- eww-history-position))) | |
| 389 | ||
| 390 | (defun eww-restore-history (elem) | |
| 391 | (let ((inhibit-read-only t)) | |
| e82b0991 | 392 | (erase-buffer) |
| d3f0f918 LMI |
393 | (insert (plist-get elem :text)) |
| 394 | (goto-char (plist-get elem :point)) | |
| 395 | (setq eww-current-url (plist-get elem :url)))) | |
| 266c63b5 | 396 | |
| 924d6997 G |
397 | (defun eww-next-url () |
| 398 | "Go to the page marked `next'. | |
| 399 | A page is marked `next' if rel=\"next\" appears in a <link> | |
| 400 | or <a> tag." | |
| 401 | (interactive) | |
| 402 | (if eww-next-url | |
| 403 | (eww-browse-url (shr-expand-url eww-next-url eww-current-url)) | |
| 404 | (error "No `next' on this page"))) | |
| 405 | ||
| 406 | (defun eww-previous-url () | |
| 407 | "Go to the page marked `previous'. | |
| 408 | A page is marked `previous' if rel=\"previous\" appears in a <link> | |
| 409 | or <a> tag." | |
| 410 | (interactive) | |
| 411 | (if eww-previous-url | |
| 412 | (eww-browse-url (shr-expand-url eww-previous-url eww-current-url)) | |
| 413 | (error "No `previous' on this page"))) | |
| 414 | ||
| 415 | (defun eww-up-url () | |
| 416 | "Go to the page marked `up'. | |
| 417 | A page is marked `up' if rel=\"up\" appears in a <link> | |
| 418 | or <a> tag." | |
| 419 | (interactive) | |
| 420 | (if eww-up-url | |
| 421 | (eww-browse-url (shr-expand-url eww-up-url eww-current-url)) | |
| 422 | (error "No `up' on this page"))) | |
| 423 | ||
| 424 | (defun eww-top-url () | |
| 425 | "Go to the page marked `top'. | |
| 970ad972 G |
426 | A page is marked `top' if rel=\"start\", rel=\"home\", or rel=\"contents\" |
| 427 | appears in a <link> or <a> tag." | |
| 924d6997 | 428 | (interactive) |
| 970ad972 G |
429 | (let ((best-url (or eww-start-url |
| 430 | eww-contents-url | |
| 431 | eww-home-url))) | |
| 432 | (if best-url | |
| 433 | (eww-browse-url (shr-expand-url best-url eww-current-url)) | |
| 434 | (error "No `top' for this page")))) | |
| 924d6997 | 435 | |
| f22255bd LMI |
436 | (defun eww-reload () |
| 437 | "Reload the current page." | |
| 438 | (interactive) | |
| 439 | (url-retrieve eww-current-url 'eww-render | |
| 440 | (list eww-current-url (point)))) | |
| 441 | ||
| 2644071e LMI |
442 | ;; Form support. |
| 443 | ||
| 444 | (defvar eww-form nil) | |
| 445 | ||
| 970ad972 G |
446 | (defvar eww-submit-map |
| 447 | (let ((map (make-sparse-keymap))) | |
| 448 | (define-key map "\r" 'eww-submit) | |
| e854cfc7 | 449 | (define-key map [(control c) (control c)] 'eww-submit) |
| 970ad972 G |
450 | map)) |
| 451 | ||
| 452 | (defvar eww-checkbox-map | |
| 453 | (let ((map (make-sparse-keymap))) | |
| 454 | (define-key map [space] 'eww-toggle-checkbox) | |
| 455 | (define-key map "\r" 'eww-toggle-checkbox) | |
| e854cfc7 | 456 | (define-key map [(control c) (control c)] 'eww-submit) |
| 970ad972 G |
457 | map)) |
| 458 | ||
| 459 | (defvar eww-text-map | |
| 460 | (let ((map (make-keymap))) | |
| 461 | (set-keymap-parent map text-mode-map) | |
| 462 | (define-key map "\r" 'eww-submit) | |
| 463 | (define-key map [(control a)] 'eww-beginning-of-text) | |
| e854cfc7 | 464 | (define-key map [(control c) (control c)] 'eww-submit) |
| 970ad972 G |
465 | (define-key map [(control e)] 'eww-end-of-text) |
| 466 | (define-key map [tab] 'shr-next-link) | |
| 467 | (define-key map [backtab] 'shr-previous-link) | |
| 468 | map)) | |
| 469 | ||
| 470 | (defvar eww-textarea-map | |
| 471 | (let ((map (make-keymap))) | |
| 472 | (set-keymap-parent map text-mode-map) | |
| 473 | (define-key map "\r" 'forward-line) | |
| e854cfc7 | 474 | (define-key map [(control c) (control c)] 'eww-submit) |
| 970ad972 G |
475 | (define-key map [tab] 'shr-next-link) |
| 476 | (define-key map [backtab] 'shr-previous-link) | |
| 477 | map)) | |
| 478 | ||
| 479 | (defvar eww-select-map | |
| 480 | (let ((map (make-sparse-keymap))) | |
| 481 | (define-key map "\r" 'eww-change-select) | |
| e854cfc7 | 482 | (define-key map [(control c) (control c)] 'eww-submit) |
| 970ad972 G |
483 | map)) |
| 484 | ||
| 485 | (defun eww-beginning-of-text () | |
| 486 | "Move to the start of the input field." | |
| 487 | (interactive) | |
| 488 | (goto-char (eww-beginning-of-field))) | |
| 489 | ||
| 490 | (defun eww-end-of-text () | |
| 491 | "Move to the end of the text in the input field." | |
| 492 | (interactive) | |
| 493 | (goto-char (eww-end-of-field)) | |
| 494 | (let ((start (eww-beginning-of-field))) | |
| 495 | (while (and (equal (following-char) ? ) | |
| 496 | (> (point) start)) | |
| 497 | (forward-char -1)) | |
| 498 | (when (> (point) start) | |
| 499 | (forward-char 1)))) | |
| 500 | ||
| 501 | (defun eww-beginning-of-field () | |
| 502 | (cond | |
| 503 | ((bobp) | |
| 504 | (point)) | |
| 505 | ((not (eq (get-text-property (point) 'eww-form) | |
| 506 | (get-text-property (1- (point)) 'eww-form))) | |
| 507 | (point)) | |
| 508 | (t | |
| 509 | (previous-single-property-change | |
| 510 | (point) 'eww-form nil (point-min))))) | |
| 511 | ||
| 512 | (defun eww-end-of-field () | |
| 513 | (1- (next-single-property-change | |
| 514 | (point) 'eww-form nil (point-max)))) | |
| 515 | ||
| 2644071e LMI |
516 | (defun eww-tag-form (cont) |
| 517 | (let ((eww-form | |
| 518 | (list (assq :method cont) | |
| 519 | (assq :action cont))) | |
| 520 | (start (point))) | |
| 521 | (shr-ensure-paragraph) | |
| 522 | (shr-generic cont) | |
| 3d95242e LMI |
523 | (unless (bolp) |
| 524 | (insert "\n")) | |
| 525 | (insert "\n") | |
| 001b9fbe LMI |
526 | (when (> (point) start) |
| 527 | (put-text-property start (1+ start) | |
| 528 | 'eww-form eww-form)))) | |
| 2644071e | 529 | |
| 970ad972 G |
530 | (defun eww-form-submit (cont) |
| 531 | (let ((start (point)) | |
| 532 | (value (cdr (assq :value cont)))) | |
| 533 | (setq value | |
| 534 | (if (zerop (length value)) | |
| 535 | "Submit" | |
| 536 | value)) | |
| 537 | (insert value) | |
| 538 | (add-face-text-property start (point) 'eww-form-submit) | |
| 539 | (put-text-property start (point) 'eww-form | |
| 540 | (list :eww-form eww-form | |
| 541 | :value value | |
| 542 | :type "submit" | |
| 543 | :name (cdr (assq :name cont)))) | |
| 544 | (put-text-property start (point) 'keymap eww-submit-map) | |
| 545 | (insert " "))) | |
| 546 | ||
| 547 | (defun eww-form-checkbox (cont) | |
| 548 | (let ((start (point))) | |
| 549 | (if (cdr (assq :checked cont)) | |
| 550 | (insert "[X]") | |
| 551 | (insert "[ ]")) | |
| 552 | (add-face-text-property start (point) 'eww-form-checkbox) | |
| 553 | (put-text-property start (point) 'eww-form | |
| 554 | (list :eww-form eww-form | |
| 555 | :value (cdr (assq :value cont)) | |
| 556 | :type (downcase (cdr (assq :type cont))) | |
| 557 | :checked (cdr (assq :checked cont)) | |
| 558 | :name (cdr (assq :name cont)))) | |
| 559 | (put-text-property start (point) 'keymap eww-checkbox-map) | |
| 560 | (insert " "))) | |
| 561 | ||
| 562 | (defun eww-form-text (cont) | |
| 563 | (let ((start (point)) | |
| 564 | (type (downcase (or (cdr (assq :type cont)) | |
| 565 | "text"))) | |
| 566 | (value (or (cdr (assq :value cont)) "")) | |
| 567 | (width (string-to-number | |
| 568 | (or (cdr (assq :size cont)) | |
| 569 | "40")))) | |
| 570 | (insert value) | |
| 571 | (when (< (length value) width) | |
| 572 | (insert (make-string (- width (length value)) ? ))) | |
| 573 | (put-text-property start (point) 'face 'eww-form-text) | |
| 574 | (put-text-property start (point) 'local-map eww-text-map) | |
| 575 | (put-text-property start (point) 'inhibit-read-only t) | |
| 576 | (put-text-property start (point) 'eww-form | |
| 577 | (list :eww-form eww-form | |
| 578 | :value value | |
| 579 | :type type | |
| 580 | :name (cdr (assq :name cont)))) | |
| 581 | (insert " "))) | |
| 582 | ||
| 583 | (defun eww-process-text-input (beg end length) | |
| 584 | (let* ((form (get-text-property end 'eww-form)) | |
| 585 | (properties (text-properties-at end)) | |
| 586 | (type (plist-get form :type))) | |
| 587 | (when (and form | |
| 588 | (member type '("text" "password" "textarea"))) | |
| 589 | (cond | |
| 590 | ((zerop length) | |
| 591 | ;; Delete some space at the end. | |
| 592 | (save-excursion | |
| 593 | (goto-char | |
| 594 | (if (equal type "textarea") | |
| 595 | (1- (line-end-position)) | |
| 596 | (eww-end-of-field))) | |
| 597 | (let ((new (- end beg))) | |
| 598 | (while (and (> new 0) | |
| 599 | (eql (following-char) ? )) | |
| 600 | (delete-region (point) (1+ (point))) | |
| 601 | (setq new (1- new)))) | |
| 602 | (set-text-properties beg end properties))) | |
| 603 | ((> length 0) | |
| 604 | ;; Add padding. | |
| 605 | (save-excursion | |
| 606 | (goto-char | |
| 607 | (if (equal type "textarea") | |
| 608 | (1- (line-end-position)) | |
| 609 | (eww-end-of-field))) | |
| 610 | (let ((start (point))) | |
| 611 | (insert (make-string length ? )) | |
| 612 | (set-text-properties start (point) properties))))) | |
| 613 | (let ((value (buffer-substring-no-properties | |
| 614 | (eww-beginning-of-field) | |
| 615 | (eww-end-of-field)))) | |
| 616 | (when (string-match " +\\'" value) | |
| 617 | (setq value (substring value 0 (match-beginning 0)))) | |
| 618 | (plist-put form :value value) | |
| 619 | (when (equal type "password") | |
| 620 | ;; Display passwords as asterisks. | |
| 621 | (let ((start (eww-beginning-of-field))) | |
| 622 | (put-text-property start (+ start (length value)) | |
| 623 | 'display (make-string (length value) ?*)))))))) | |
| 9ddf23f0 | 624 | |
| c74cb344 | 625 | (defun eww-tag-textarea (cont) |
| 970ad972 G |
626 | (let ((start (point)) |
| 627 | (value (or (cdr (assq :value cont)) "")) | |
| 628 | (lines (string-to-number | |
| 629 | (or (cdr (assq :rows cont)) | |
| 630 | "10"))) | |
| 631 | (width (string-to-number | |
| 632 | (or (cdr (assq :cols cont)) | |
| 633 | "10"))) | |
| 634 | end) | |
| 635 | (shr-ensure-newline) | |
| 636 | (insert value) | |
| 637 | (shr-ensure-newline) | |
| 638 | (when (< (count-lines start (point)) lines) | |
| 639 | (dotimes (i (- lines (count-lines start (point)))) | |
| 640 | (insert "\n"))) | |
| 641 | (setq end (point-marker)) | |
| 642 | (goto-char start) | |
| 643 | (while (< (point) end) | |
| 644 | (end-of-line) | |
| 645 | (let ((pad (- width (- (point) (line-beginning-position))))) | |
| 646 | (when (> pad 0) | |
| 647 | (insert (make-string pad ? )))) | |
| 648 | (add-face-text-property (line-beginning-position) | |
| 649 | (point) 'eww-form-text) | |
| 650 | (put-text-property (line-beginning-position) (point) | |
| 651 | 'local-map eww-textarea-map) | |
| 652 | (forward-line 1)) | |
| 653 | (put-text-property start (point) 'eww-form | |
| 654 | (list :eww-form eww-form | |
| 655 | :value value | |
| 656 | :type "textarea" | |
| 657 | :name (cdr (assq :name cont)))))) | |
| 658 | ||
| 659 | (defun eww-tag-input (cont) | |
| 660 | (let ((type (downcase (or (cdr (assq :type cont)) | |
| 661 | "text"))) | |
| 662 | (start (point))) | |
| 663 | (cond | |
| 664 | ((or (equal type "checkbox") | |
| 665 | (equal type "radio")) | |
| 666 | (eww-form-checkbox cont)) | |
| 667 | ((equal type "submit") | |
| 668 | (eww-form-submit cont)) | |
| 669 | ((equal type "hidden") | |
| 670 | (let ((form eww-form) | |
| 671 | (name (cdr (assq :name cont)))) | |
| 672 | ;; Don't add <input type=hidden> elements repeatedly. | |
| 673 | (while (and form | |
| 674 | (or (not (consp (car form))) | |
| 675 | (not (eq (caar form) 'hidden)) | |
| 676 | (not (equal (plist-get (cdr (car form)) :name) | |
| 677 | name)))) | |
| 678 | (setq form (cdr form))) | |
| 679 | (unless form | |
| 680 | (nconc eww-form (list | |
| 681 | (list 'hidden | |
| 682 | :name name | |
| 683 | :value (cdr (assq :value cont)))))))) | |
| 684 | (t | |
| 685 | (eww-form-text cont))) | |
| 686 | (unless (= start (point)) | |
| 687 | (put-text-property start (1+ start) 'help-echo "Input field")))) | |
| c74cb344 | 688 | |
| 9ddf23f0 LMI |
689 | (defun eww-tag-select (cont) |
| 690 | (shr-ensure-paragraph) | |
| 970ad972 | 691 | (let ((menu (list :name (cdr (assq :name cont)) |
| 9ddf23f0 LMI |
692 | :eww-form eww-form)) |
| 693 | (options nil) | |
| 970ad972 G |
694 | (start (point)) |
| 695 | (max 0)) | |
| 9ddf23f0 LMI |
696 | (dolist (elem cont) |
| 697 | (when (eq (car elem) 'option) | |
| 698 | (when (cdr (assq :selected (cdr elem))) | |
| 699 | (nconc menu (list :value | |
| 700 | (cdr (assq :value (cdr elem)))))) | |
| 970ad972 G |
701 | (let ((display (or (cdr (assq 'text (cdr elem))) ""))) |
| 702 | (setq max (max max (length display))) | |
| 703 | (push (list 'item | |
| 704 | :value (cdr (assq :value (cdr elem))) | |
| 705 | :display display) | |
| 706 | options)))) | |
| be2aa135 | 707 | (when options |
| 970ad972 | 708 | (setq options (nreverse options)) |
| be2aa135 | 709 | ;; If we have no selected values, default to the first value. |
| 970ad972 | 710 | (unless (plist-get menu :value) |
| be2aa135 LMI |
711 | (nconc menu (list :value (nth 2 (car options))))) |
| 712 | (nconc menu options) | |
| 970ad972 G |
713 | (let ((selected (eww-select-display menu))) |
| 714 | (insert selected | |
| 715 | (make-string (- max (length selected)) ? ))) | |
| 716 | (put-text-property start (point) 'eww-form menu) | |
| 717 | (add-face-text-property start (point) 'eww-form-select) | |
| 718 | (put-text-property start (point) 'keymap eww-select-map) | |
| be2aa135 | 719 | (shr-ensure-paragraph)))) |
| 2644071e | 720 | |
| 970ad972 G |
721 | (defun eww-select-display (select) |
| 722 | (let ((value (plist-get select :value)) | |
| 723 | display) | |
| 724 | (dolist (elem select) | |
| 725 | (when (and (consp elem) | |
| 726 | (eq (car elem) 'item) | |
| 727 | (equal value (plist-get (cdr elem) :value))) | |
| 728 | (setq display (plist-get (cdr elem) :display)))) | |
| 729 | display)) | |
| 730 | ||
| 731 | (defun eww-change-select () | |
| 732 | "Change the value of the select drop-down menu under point." | |
| 733 | (interactive) | |
| 734 | (let* ((input (get-text-property (point) 'eww-form)) | |
| 735 | (properties (text-properties-at (point))) | |
| 736 | (completion-ignore-case t) | |
| 737 | (options | |
| 738 | (delq nil | |
| 739 | (mapcar (lambda (elem) | |
| 740 | (and (consp elem) | |
| 741 | (eq (car elem) 'item) | |
| 742 | (cons (plist-get (cdr elem) :display) | |
| 743 | (plist-get (cdr elem) :value)))) | |
| 744 | input))) | |
| 745 | (display | |
| 746 | (completing-read "Change value: " options nil 'require-match)) | |
| 747 | (inhibit-read-only t)) | |
| 748 | (plist-put input :value (cdr (assoc-string display options t))) | |
| 749 | (goto-char | |
| 750 | (eww-update-field display)))) | |
| 751 | ||
| 752 | (defun eww-update-field (string) | |
| 753 | (let ((properties (text-properties-at (point))) | |
| 754 | (start (eww-beginning-of-field)) | |
| 755 | (end (1+ (eww-end-of-field)))) | |
| 756 | (delete-region start end) | |
| 757 | (insert string | |
| 758 | (make-string (- (- end start) (length string)) ? )) | |
| 759 | (set-text-properties start end properties) | |
| 760 | start)) | |
| 761 | ||
| 762 | (defun eww-toggle-checkbox () | |
| 763 | "Toggle the value of the checkbox under point." | |
| 764 | (interactive) | |
| 765 | (let* ((input (get-text-property (point) 'eww-form)) | |
| 766 | (type (plist-get input :type))) | |
| 767 | (if (equal type "checkbox") | |
| 768 | (goto-char | |
| 769 | (1+ | |
| 770 | (if (plist-get input :checked) | |
| 771 | (progn | |
| 772 | (plist-put input :checked nil) | |
| 773 | (eww-update-field "[ ]")) | |
| 774 | (plist-put input :checked t) | |
| 775 | (eww-update-field "[X]")))) | |
| 776 | ;; Radio button. Switch all other buttons off. | |
| 777 | (let ((name (plist-get input :name))) | |
| 778 | (save-excursion | |
| 779 | (dolist (elem (eww-inputs (plist-get input :eww-form))) | |
| 780 | (when (equal (plist-get (cdr elem) :name) name) | |
| 781 | (goto-char (car elem)) | |
| 782 | (if (not (eq (cdr elem) input)) | |
| 783 | (progn | |
| 784 | (plist-put input :checked nil) | |
| 785 | (eww-update-field "[ ]")) | |
| 786 | (plist-put input :checked t) | |
| 787 | (eww-update-field "[X]"))))) | |
| 788 | (forward-char 1))))) | |
| 789 | ||
| 790 | (defun eww-inputs (form) | |
| 791 | (let ((start (point-min)) | |
| 792 | (inputs nil)) | |
| 793 | (while (and start | |
| 794 | (< start (point-max))) | |
| 795 | (when (or (get-text-property start 'eww-form) | |
| 796 | (setq start (next-single-property-change start 'eww-form))) | |
| 797 | (when (eq (plist-get (get-text-property start 'eww-form) :eww-form) | |
| 798 | form) | |
| 799 | (push (cons start (get-text-property start 'eww-form)) | |
| 800 | inputs)) | |
| 801 | (setq start (next-single-property-change start 'eww-form)))) | |
| 802 | (nreverse inputs))) | |
| 803 | ||
| 804 | (defun eww-input-value (input) | |
| 805 | (let ((type (plist-get input :type)) | |
| 806 | (value (plist-get input :value))) | |
| 807 | (cond | |
| 808 | ((equal type "textarea") | |
| 809 | (with-temp-buffer | |
| 810 | (insert value) | |
| 811 | (goto-char (point-min)) | |
| 812 | (while (re-search-forward "^ +\n\\| +$" nil t) | |
| 813 | (replace-match "" t t)) | |
| 814 | (buffer-string))) | |
| 815 | (t | |
| 816 | (if (string-match " +\\'" value) | |
| 817 | (substring value 0 (match-beginning 0)) | |
| 818 | value))))) | |
| 819 | ||
| 820 | (defun eww-submit () | |
| 821 | "Submit the current form." | |
| 822 | (interactive) | |
| 823 | (let* ((this-input (get-text-property (point) 'eww-form)) | |
| 824 | (form (plist-get this-input :eww-form)) | |
| 825 | values next-submit) | |
| 826 | (dolist (elem (sort (eww-inputs form) | |
| 827 | (lambda (o1 o2) | |
| 828 | (< (car o1) (car o2))))) | |
| 829 | (let* ((input (cdr elem)) | |
| 830 | (input-start (car elem)) | |
| 831 | (name (plist-get input :name))) | |
| 832 | (when name | |
| 833 | (cond | |
| 834 | ((member (plist-get input :type) '("checkbox" "radio")) | |
| 835 | (when (plist-get input :checked) | |
| 836 | (push (cons name (plist-get input :value)) | |
| 837 | values))) | |
| 838 | ((equal (plist-get input :type) "submit") | |
| 839 | ;; We want the values from buttons if we hit a button if | |
| 840 | ;; we hit enter on it, or if it's the first button after | |
| 841 | ;; the field we did hit return on. | |
| 842 | (when (or (eq input this-input) | |
| 843 | (and (not (eq input this-input)) | |
| 844 | (null next-submit) | |
| 845 | (> input-start (point)))) | |
| 846 | (setq next-submit t) | |
| 847 | (push (cons name (plist-get input :value)) | |
| 848 | values))) | |
| 849 | (t | |
| 850 | (push (cons name (eww-input-value input)) | |
| 851 | values)))))) | |
| f22255bd LMI |
852 | (dolist (elem form) |
| 853 | (when (and (consp elem) | |
| 854 | (eq (car elem) 'hidden)) | |
| 855 | (push (cons (plist-get (cdr elem) :name) | |
| 856 | (plist-get (cdr elem) :value)) | |
| 857 | values))) | |
| c74cb344 G |
858 | (if (and (stringp (cdr (assq :method form))) |
| 859 | (equal (downcase (cdr (assq :method form))) "post")) | |
| 860 | (let ((url-request-method "POST") | |
| 861 | (url-request-extra-headers | |
| 862 | '(("Content-Type" . "application/x-www-form-urlencoded"))) | |
| 863 | (url-request-data (mm-url-encode-www-form-urlencoded values))) | |
| 864 | (eww-browse-url (shr-expand-url (cdr (assq :action form)) | |
| 865 | eww-current-url))) | |
| 866 | (eww-browse-url | |
| 867 | (concat | |
| 868 | (if (cdr (assq :action form)) | |
| 869 | (shr-expand-url (cdr (assq :action form)) | |
| 870 | eww-current-url) | |
| 871 | eww-current-url) | |
| 872 | "?" | |
| 873 | (mm-url-encode-www-form-urlencoded values)))))) | |
| 2644071e | 874 | |
| f865b474 IK |
875 | (defun eww-browse-with-external-browser () |
| 876 | "Browse the current URL with an external browser. | |
| 0ebd92a3 | 877 | The browser to used is specified by the `shr-external-browser' variable." |
| f865b474 | 878 | (interactive) |
| 0ebd92a3 | 879 | (funcall shr-external-browser eww-current-url)) |
| f865b474 | 880 | |
| 16f74f10 | 881 | (defun eww-copy-page-url () |
| b89fc156 | 882 | (interactive) |
| 16f74f10 | 883 | (message "%s" eww-current-url) |
| b89fc156 | 884 | (kill-new eww-current-url)) |
| 16f74f10 | 885 | |
| bfbc93a1 IK |
886 | (defun eww-download () |
| 887 | "Download URL under point to `eww-download-directory'." | |
| 888 | (interactive) | |
| 889 | (let ((url (get-text-property (point) 'shr-url))) | |
| 890 | (if (not url) | |
| 891 | (message "No URL under point") | |
| 892 | (url-retrieve url 'eww-download-callback (list url))))) | |
| 893 | ||
| 894 | (defun eww-download-callback (status url) | |
| 895 | (unless (plist-get status :error) | |
| 896 | (let* ((obj (url-generic-parse-url url)) | |
| 897 | (path (car (url-path-and-query obj))) | |
| 898 | (file (eww-make-unique-file-name (file-name-nondirectory path) | |
| 899 | eww-download-path))) | |
| 900 | (write-file file) | |
| 901 | (message "Saved %s" file)))) | |
| 902 | ||
| 903 | (defun eww-make-unique-file-name (file directory) | |
| 904 | (cond | |
| 905 | ((zerop (length file)) | |
| 906 | (setq file "!")) | |
| 907 | ((string-match "\\`[.]" file) | |
| 908 | (setq file (concat "!" file)))) | |
| 909 | (let ((base file) | |
| 910 | (count 1)) | |
| 911 | (while (file-exists-p (expand-file-name file directory)) | |
| 912 | (setq file | |
| 913 | (if (string-match "\\`\\(.*\\)\\([.][^.]+\\)" file) | |
| 914 | (format "%s(%d)%s" (match-string 1 file) | |
| 915 | count (match-string 2 file)) | |
| 916 | (format "%s(%d)" file count))) | |
| 917 | (setq count (1+ count))) | |
| 918 | (expand-file-name file directory))) | |
| 919 | ||
| 266c63b5 AK |
920 | (provide 'eww) |
| 921 | ||
| 922 | ;;; eww.el ends here |