mirror of
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2966 lines
106 KiB
EmacsLisp
2966 lines
106 KiB
EmacsLisp
;;; eww.el --- Emacs Web Wowser -*- lexical-binding:t -*-
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;; Copyright (C) 2013-2024 Free Software Foundation, Inc.
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;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
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;; Keywords: html
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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(require 'cl-lib)
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(require 'mm-url)
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(require 'puny)
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(require 'shr)
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(require 'text-property-search)
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(require 'thingatpt)
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(require 'url)
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(require 'url-queue)
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(require 'url-file)
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(require 'vtable)
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(require 'xdg)
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(eval-when-compile (require 'subr-x))
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(defgroup eww nil
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"Emacs Web Wowser."
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:version "25.1"
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:link '(custom-manual "(eww) Top")
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:group 'web
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:prefix "eww-")
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(defcustom eww-header-line-format "%t: %u"
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"Header line format.
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- %t is replaced by the title.
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- %u is replaced by the URL."
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:version "24.4"
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:group 'eww
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:type 'string)
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(defcustom eww-search-prefix "https://duckduckgo.com/html/?q="
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"Prefix URL to search engine."
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:version "24.4"
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:group 'eww
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:type 'string)
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(defcustom eww-use-browse-url "\\`mailto:"
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"EWW will use `browse-url' when following links that match this regexp.
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The action to be taken can be further customized via
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`browse-url-handlers'."
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:version "28.1"
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:type 'regexp)
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(defcustom eww-default-download-directory "~/Downloads/"
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"Default directory where `eww' saves downloaded files.
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Used by `eww--download-directory', which see."
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:version "29.1"
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:group 'eww
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:type 'directory)
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(defun eww--download-directory ()
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"Return the name of the EWW download directory.
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The default is specified by `eww-default-download-directory'; however,
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if that directory doesn't exist and the DOWNLOAD XDG user directory
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is defined, use the latter instead."
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(or (and (file-exists-p eww-default-download-directory)
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eww-default-download-directory)
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(when-let* ((dir (xdg-user-dir "DOWNLOAD")))
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(file-name-as-directory dir))
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eww-default-download-directory))
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(defcustom eww-download-directory 'eww--download-directory
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"Directory where files will downloaded.
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This should either be a directory name or a function (called with
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no parameters) that returns a directory name."
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:version "28.1"
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:group 'eww
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:type '(choice directory function))
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;;;###autoload
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(defcustom eww-suggest-uris
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'(eww-links-at-point
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thing-at-point-url-at-point
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eww-current-url
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eww-bookmark-urls)
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"List of functions called to form the list of default URIs for `eww'.
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Each of the elements is a function returning either a string or a list
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of strings. The results will be joined into a single list with
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duplicate entries (if any) removed."
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:version "30.1"
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:group 'eww
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:type 'hook
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:options '(eww-links-at-point
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thing-at-point-url-at-point
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eww-current-url
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eww-bookmark-urls))
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(defcustom eww-guess-content-type-functions
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'(eww--html-if-doctype)
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"List of functions used by EWW to guess the content-type of Web pages.
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These are only used when the page does not have a valid Content-Type
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header. Functions are called in order, until one of them returns a
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non-nil value to be used as Content-Type. The functions receive two
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arguments: an alist of page's headers, and the buffer that holds the
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complete response of the server from which the page was requested.
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If the list of the functions is exhausted without any non-nil value,
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EWW assumes content-type is \"application/octet-stream\", per RFC-9110."
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:version "31.1"
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:group 'eww
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:type '(repeat function))
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(defcustom eww-bookmarks-directory user-emacs-directory
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"Directory where bookmark files will be stored."
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:version "25.1"
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:group 'eww
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:type 'directory)
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(defcustom eww-desktop-remove-duplicates t
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"Whether to remove duplicates from the history when saving desktop data.
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If non-nil, repetitive EWW history entries (comprising of the URI, the
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title, and the point position) will not be saved as part of the Emacs
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desktop. Otherwise, such entries will be retained."
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:version "25.1"
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:group 'eww
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:type 'boolean)
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(defcustom eww-restore-desktop nil
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"How to restore EWW buffers on `desktop-restore'.
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If t or `auto', the buffers will be reloaded automatically.
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If nil, buffers will require manual reload, and will contain the text
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specified in `eww-restore-reload-prompt' instead of the actual Web
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page contents."
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:version "25.1"
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:group 'eww
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:type '(choice (const :tag "Restore all automatically" t)
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(const :tag "Require manual reload" nil)))
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(defcustom eww-restore-reload-prompt
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"\n\n *** Use \\[eww-reload] to reload this buffer. ***\n"
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"The string to put in the buffers not reloaded on `desktop-restore'.
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This prompt will be used if `eww-restore-desktop' is nil.
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The string will be passed through `substitute-command-keys'."
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:version "25.1"
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:group 'eww
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:type 'string)
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(defcustom eww-history-limit 50
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"Maximum number of entries to retain in the history."
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:version "25.1"
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:group 'eww
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:type '(choice (const :tag "Unlimited" nil)
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integer))
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(defcustom eww-retrieve-command nil
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"Command to retrieve an URL via an external program.
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If nil, `url-retrieve' is used to download the data.
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If `sync', `url-retrieve-synchronously' is used.
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For other non-nil values, this should be a list of strings where
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the first item is the program, and the rest are the arguments."
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:version "28.1"
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:type '(choice (const :tag "Use `url-retrieve'" nil)
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(const :tag "Use `url-retrieve-synchronously'" sync)
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(repeat :tag "Command/args" string )))
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(defcustom eww-use-external-browser-for-content-type
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"\\`\\(video/\\|audio/\\|application/ogg\\)"
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"Always use external browser for specified content-type."
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:version "24.4"
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:group 'eww
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:type '(choice (const :tag "Never" nil)
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regexp))
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(defcustom eww-browse-url-new-window-is-tab 'tab-bar
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"Whether to open up new windows in a tab or a new buffer.
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If t, then open the URL in a new tab rather than a new buffer if
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`eww-browse-url' is asked to open it in a new window.
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If `tab-bar', then open the URL in a new tab only when
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the tab bar is enabled."
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:version "27.1"
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:group 'eww
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:type '(choice (const :tag "Always open URL in new tab" t)
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(const :tag "Open new tab when tab bar is enabled" tab-bar)
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(const :tag "Never open URL in new tab" nil)))
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(defcustom eww-before-browse-history-function #'eww-delete-future-history
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"A function to call to update history before browsing to a new page.
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EWW provides the following values for this option:
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* `eww-delete-future-history': Delete any history entries after the
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currently-shown one. This is the default behavior, and works the same
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as in most other web browsers.
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* `eww-clone-previous-history': Clone and prepend any history entries up
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to the currently-shown one. This is like `eww-delete-future-history',
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except that it preserves the previous contents of the history list at
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the end.
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* `ignore': Preserve the current history unchanged. This will result in
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the new page simply being prepended to the existing history list.
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You can also set this to any other function you wish."
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:version "30.1"
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:group 'eww
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:type '(choice (function-item :tag "Delete future history"
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eww-delete-future-history)
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(function-item :tag "Clone previous history"
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eww-clone-previous-history)
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(function-item :tag "Preserve history"
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ignore)
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(function :tag "Custom function")))
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(defcustom eww-after-render-hook nil
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"A hook called after eww has finished rendering the buffer."
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:version "25.1"
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:group 'eww
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:type 'hook)
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(defcustom eww-auto-rename-buffer nil
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"Automatically rename EWW buffers once the page is rendered.
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When nil, do not rename the buffer. With a non-nil value
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determine the renaming scheme, as follows:
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- `title': Use the web page's title.
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- `url': Use the web page's URL.
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- a function's symbol: Run a user-defined function that returns a
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string with which to rename the buffer. Sample of a
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user-defined function:
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(defun my-eww-rename-buffer ()
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(when (eq major-mode \\='eww-mode)
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(when-let* ((string (or (plist-get eww-data :title)
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(plist-get eww-data :url))))
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(format \"*%s*\" string))))
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The string of `title' and `url' is always truncated to the value
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of `eww-buffer-name-length'."
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:version "29.1"
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:type '(choice
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(const :tag "Do not rename buffers (default)" nil)
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(const :tag "Rename buffer to web page title" title)
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(const :tag "Rename buffer to web page URL" url)
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(function :tag "A user-defined function to rename the buffer"))
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:group 'eww)
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(defcustom eww-buffer-name-length 40
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"Length of renamed buffer name, per `eww-auto-rename-buffer'."
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:type 'natnum
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:version "29.1"
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:group 'eww)
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(defcustom eww-form-checkbox-selected-symbol "[X]"
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"Symbol used to represent a selected checkbox.
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See also `eww-form-checkbox-symbol'."
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:version "24.4"
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:group 'eww
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:type '(choice (const "[X]")
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(const "☒") ; Unicode BALLOT BOX WITH X
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(const "☑") ; Unicode BALLOT BOX WITH CHECK
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string))
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(defcustom eww-form-checkbox-symbol "[ ]"
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"Symbol used to represent a checkbox.
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See also `eww-form-checkbox-selected-symbol'."
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:version "24.4"
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:group 'eww
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:type '(choice (const "[ ]")
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(const "☐") ; Unicode BALLOT BOX
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string))
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(defcustom eww-url-transformers '(eww-remove-tracking)
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"This is a list of transforming functions applied to an URL before usage.
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The functions will be called with the URL as the single
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parameter, and should return the (possibly) transformed URL."
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:type '(repeat function)
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:version "29.1")
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(defcustom eww-readable-urls nil
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"A list of regexps matching URLs to display in readable mode by default.
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EWW will display matching URLs using `eww-readable' (which see).
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Each element can be one of the following forms: a regular expression in
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string form or a cons cell of the form (REGEXP . READABILITY). If
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READABILITY is non-nil, this behaves the same as the string form;
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otherwise, URLs matching REGEXP will never be displayed in readable mode
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by default."
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:type '(repeat (choice (string :tag "Readable URL")
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(cons :tag "URL and Readability"
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(string :tag "URL")
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(radio (const :tag "Readable" t)
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(const :tag "Non-readable" nil)))))
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:version "30.1")
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(defcustom eww-readable-adds-to-history t
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"If non-nil, calling `eww-readable' adds a new entry to the history."
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:type 'boolean
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:version "30.1")
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(defface eww-form-submit
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'((((type x w32 ns haiku pgtk android) (class color)) ; Like default mode line
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:box (:line-width 2 :style released-button)
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:background "#808080" :foreground "black"))
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"Face for eww buffer buttons."
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:version "24.4"
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:group 'eww)
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(defface eww-form-file
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'((((type x w32 ns haiku pgtk android) (class color)) ; Like default mode line
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:box (:line-width 2 :style released-button)
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:background "#808080" :foreground "black"))
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"Face for eww buffer buttons."
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:version "25.1"
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:group 'eww)
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(defface eww-form-checkbox
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'((((type x w32 ns haiku pgtk android) (class color)) ; Like default mode line
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:box (:line-width 2 :style released-button)
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:background "lightgrey" :foreground "black"))
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"Face for eww buffer buttons."
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:version "24.4"
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:group 'eww)
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(defface eww-form-select
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'((((type x w32 ns haiku pgtk android) (class color)) ; Like default mode line
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:box (:line-width 2 :style released-button)
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:background "lightgrey" :foreground "black"))
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"Face for eww buffer buttons."
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:version "24.4"
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:group 'eww)
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(defface eww-form-text
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'((t :background "#505050"
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:foreground "white"
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:box (:line-width 1)))
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"Face for eww text inputs."
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:version "24.4"
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:group 'eww)
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(defface eww-form-textarea
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'((t :background "#C0C0C0"
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:foreground "black"
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:box (:line-width 1)))
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"Face for eww textarea inputs."
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:version "24.4"
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:group 'eww)
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(defface eww-invalid-certificate
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'((default :weight bold)
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(((class color)) :foreground "red"))
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"Face for web pages with invalid certificates."
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:version "25.1"
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:group 'eww)
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(defface eww-valid-certificate
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'((default :weight bold)
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(((class color)) :foreground "ForestGreen"))
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"Face for web pages with valid certificates."
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:version "25.1"
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:group 'eww)
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(defvar eww-data nil)
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(defvar eww-history nil)
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(defvar eww-history-position 0
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"The 1-indexed position in `eww-history'.
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If zero, EWW is at the newest page, which isn't yet present in
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`eww-history'.")
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(defvar eww-prompt-history nil)
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(defvar eww-local-regex "localhost"
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"When this regex is found in the URL, it's not a keyword but an address.")
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(defvar eww-accept-content-types
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"text/html, text/plain, text/sgml, text/css, application/xhtml+xml, */*;q=0.01"
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"Value used for the HTTP \"Accept\" header.")
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(defvar-keymap eww-link-keymap
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:parent shr-map
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"RET" #'eww-follow-link
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"<mouse-2>" #'eww-follow-link)
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(defvar-keymap eww-image-link-keymap
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:parent shr-image-map
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"RET" #'eww-follow-link)
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(defvar-keymap eww-minibuffer-url-keymap
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:doc "Keymap used in the minibuffer prompt for URLs or keywords."
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:parent minibuffer-local-completion-map
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"SPC" #'self-insert-command
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"?" #'self-insert-command)
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(defun eww-suggested-uris nil
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"Return the list of URIs to suggest at the `eww' prompt.
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This list can be customized via `eww-suggest-uris'."
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(let ((obseen (obarray-make 42))
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(uris nil))
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(dolist (fun eww-suggest-uris)
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(let ((ret (funcall fun)))
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(dolist (uri (if (stringp ret) (list ret) ret))
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(when (and uri (not (intern-soft uri obseen)))
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(intern uri obseen)
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(push uri uris)))))
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(nreverse uris)))
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;;;###autoload
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(defun eww-browse ()
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"Function to be run to parse command line URLs.
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This is meant to be used for MIME handlers or command line use.
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Setting the handler for \"text/x-uri;\" to
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\"emacs -f eww-browse %u\" will then start up Emacs and call eww
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to browse the url.
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This can also be used on the command line directly:
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emacs -f eww-browse https://gnu.org
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will start Emacs and browse the GNU web site."
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(interactive)
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(unless command-line-args-left
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(user-error "No URL given"))
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(eww (pop command-line-args-left)))
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;;;###autoload
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(defun eww (url &optional new-buffer buffer)
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"Fetch URL and render the page.
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If the input doesn't look like an URL or a domain name, the
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word(s) will be searched for via `eww-search-prefix'.
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If NEW-BUFFER is non-nil (interactively, the prefix arg), use a
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new buffer instead of reusing the default EWW buffer.
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If BUFFER, the data to be rendered is in that buffer. In that
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case, this function doesn't actually fetch URL. BUFFER will be
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killed after rendering.
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For more information, see Info node `(eww) Top'."
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(interactive
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(let ((uris (eww-suggested-uris))
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(minibuffer-local-completion-map eww-minibuffer-url-keymap))
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(list (completing-read (format-prompt "Enter URL or keywords"
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(and uris (car uris)))
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(seq-uniq (append eww-prompt-history uris))
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nil nil nil 'eww-prompt-history uris)
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current-prefix-arg)))
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(setq url (eww--dwim-expand-url url))
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(pop-to-buffer-same-window
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(cond
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(new-buffer
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(generate-new-buffer "*eww*"))
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((eq major-mode 'eww-mode)
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(current-buffer))
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(t
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(get-buffer-create "*eww*"))))
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(eww-setup-buffer)
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(eww--before-browse)
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;; Check whether the domain only uses "Highly Restricted" Unicode
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;; IDNA characters. If not, transform to punycode to indicate that
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;; there may be funny business going on.
|
|
(let ((parsed (url-generic-parse-url url)))
|
|
(when (url-host parsed)
|
|
(unless (puny-highly-restrictive-domain-p (url-host parsed))
|
|
(setf (url-host parsed) (puny-encode-domain (url-host parsed)))))
|
|
;; When the URL is on the form "http://a/../../../g", chop off all
|
|
;; the leading "/.."s.
|
|
(when (url-filename parsed)
|
|
(while (string-match "\\`/[.][.]/" (url-filename parsed))
|
|
(setf (url-filename parsed) (substring (url-filename parsed) 3))))
|
|
(setq url (url-recreate-url parsed)))
|
|
(setq url (eww--transform-url url))
|
|
(plist-put eww-data :url url)
|
|
(plist-put eww-data :title "")
|
|
(eww--after-page-change)
|
|
(let ((inhibit-read-only t))
|
|
(insert (format "Loading %s..." url))
|
|
(goto-char (point-min)))
|
|
(let ((url-mime-accept-string eww-accept-content-types))
|
|
(if buffer
|
|
(let ((eww-buffer (current-buffer)))
|
|
(with-current-buffer buffer
|
|
(eww-render nil url nil eww-buffer)))
|
|
(eww-retrieve url #'eww-render
|
|
(list url nil (current-buffer))))))
|
|
|
|
(defun eww-retrieve (url callback cbargs)
|
|
(cond
|
|
((null eww-retrieve-command)
|
|
(url-retrieve url callback cbargs))
|
|
((eq eww-retrieve-command 'sync)
|
|
(let ((data-buffer (url-retrieve-synchronously url)))
|
|
(with-current-buffer data-buffer
|
|
(apply callback nil cbargs))))
|
|
(t
|
|
(let ((buffer (generate-new-buffer " *eww retrieve*"))
|
|
(error-buffer (generate-new-buffer " *eww error*")))
|
|
(with-current-buffer buffer
|
|
(set-buffer-multibyte nil)
|
|
(make-process
|
|
:name "*eww fetch*"
|
|
:buffer (current-buffer)
|
|
:stderr error-buffer
|
|
:command (append eww-retrieve-command (list url))
|
|
:sentinel (lambda (process _)
|
|
(unless (process-live-p process)
|
|
(when (buffer-live-p error-buffer)
|
|
(when (get-buffer-process error-buffer)
|
|
(delete-process (get-buffer-process error-buffer) ))
|
|
(kill-buffer error-buffer))
|
|
(when (buffer-live-p buffer)
|
|
(with-current-buffer buffer
|
|
(goto-char (point-min))
|
|
(insert "Content-type: text/html; charset=utf-8\n\n")
|
|
(apply #'funcall callback nil cbargs)))))))))))
|
|
|
|
(function-put 'eww 'browse-url-browser-kind 'internal)
|
|
|
|
(defun eww--dwim-expand-url (url)
|
|
(setq url (string-trim url))
|
|
(cond ((string-match-p "\\`file:/" url))
|
|
;; Don't mangle file: URLs at all.
|
|
((string-match-p "\\`ftp://" url)
|
|
(user-error "FTP is not supported"))
|
|
(t
|
|
;; Anything that starts with something that vaguely looks
|
|
;; like a protocol designator is interpreted as a full URL.
|
|
(if (or (string-match "\\`[A-Za-z]+:" url)
|
|
;; Also try to match "naked" URLs like
|
|
;; en.wikipedia.org/wiki/Free software
|
|
(string-match "\\`[A-Za-z_]+\\.[A-Za-z._]+/" url)
|
|
(and (= (length (split-string url)) 1)
|
|
(or (and (not (string-match-p "\\`[\"'].*[\"']\\'" url))
|
|
(> (length (split-string url "[.:]")) 1))
|
|
(string-match eww-local-regex url))))
|
|
(progn
|
|
(unless (string-match-p "\\`[a-zA-Z][-a-zA-Z0-9+.]*://" url)
|
|
(setq url (concat "http://" url)))
|
|
;; Some sites do not redirect final /
|
|
(when (string= (url-filename (url-generic-parse-url url)) "")
|
|
(setq url (concat url "/"))))
|
|
(setq url (concat eww-search-prefix
|
|
(mapconcat
|
|
#'url-hexify-string (split-string url) "+"))))))
|
|
url)
|
|
|
|
(defun eww--preprocess-html (start end)
|
|
"Translate all < characters that do not look like start of tags into <."
|
|
(save-excursion
|
|
(save-restriction
|
|
(narrow-to-region start end)
|
|
(goto-char start)
|
|
(let ((case-fold-search t))
|
|
(while (re-search-forward "<[^0-9a-z!?/]" nil t)
|
|
(goto-char (match-beginning 0))
|
|
(delete-region (point) (1+ (point)))
|
|
(insert "<"))))))
|
|
|
|
;;;###autoload (defalias 'browse-web 'eww)
|
|
|
|
;;;###autoload
|
|
(defun eww-open-file (file &optional new-buffer)
|
|
"Render FILE using EWW.
|
|
If NEW-BUFFER is non-nil (interactively, the prefix arg), use a
|
|
new buffer instead of reusing the default EWW buffer."
|
|
(interactive "fFile: \nP")
|
|
(let ((url-allow-non-local-files t))
|
|
(eww (concat "file://"
|
|
(and (memq system-type '(windows-nt ms-dos))
|
|
"/")
|
|
(expand-file-name file))
|
|
new-buffer)))
|
|
|
|
(defun eww--file-buffer (file)
|
|
(with-current-buffer (generate-new-buffer " *eww file*")
|
|
(set-buffer-multibyte nil)
|
|
(insert "Content-type: " (or (mailcap-extension-to-mime
|
|
(url-file-extension file))
|
|
"application/octet-stream")
|
|
"\n\n")
|
|
(insert-file-contents file)
|
|
(current-buffer)))
|
|
|
|
;;;###autoload
|
|
(defun eww-search-words ()
|
|
"Search the web for the text in the region.
|
|
If region is active (and not whitespace), search the web for
|
|
the text between region beginning and end. Else, prompt the
|
|
user for a search string. See the variable `eww-search-prefix'
|
|
for the search engine used."
|
|
(interactive)
|
|
(if (use-region-p)
|
|
(let ((region-string (buffer-substring (region-beginning) (region-end))))
|
|
(if (not (string-match-p "\\`[ \n\t\r\v\f]*\\'" region-string))
|
|
(eww region-string)
|
|
(call-interactively #'eww)))
|
|
(call-interactively #'eww)))
|
|
|
|
(defun eww--open-url-in-new-buffer (url)
|
|
"Open the URL in a new EWW buffer."
|
|
;; Clone is useful to keep history, but we
|
|
;; should not clone from a non-eww buffer.
|
|
(with-current-buffer
|
|
(if (eq major-mode 'eww-mode) (clone-buffer)
|
|
(generate-new-buffer "*eww*"))
|
|
(unless (equal url (eww-current-url))
|
|
(eww-mode)
|
|
(eww (if (consp url) (car url) url)))))
|
|
|
|
(defun eww-open-in-new-buffer (&optional no-select url)
|
|
"Fetch URL (interactively, the link at point) into a new EWW buffer.
|
|
|
|
NO-SELECT non-nil means do not make the new buffer the current buffer."
|
|
(interactive "P")
|
|
(if-let* ((url (or url (eww-suggested-uris))))
|
|
(if (or (eq eww-browse-url-new-window-is-tab t)
|
|
(and (eq eww-browse-url-new-window-is-tab 'tab-bar)
|
|
tab-bar-mode))
|
|
(let ((tab-bar-new-tab-choice t))
|
|
(tab-new)
|
|
(eww--open-url-in-new-buffer url)
|
|
(when no-select
|
|
(tab-bar-switch-to-recent-tab)))
|
|
(if no-select
|
|
(save-window-excursion (eww--open-url-in-new-buffer url))
|
|
(eww--open-url-in-new-buffer url)))
|
|
(user-error "No link at point")))
|
|
|
|
(defun eww-html-p (content-type)
|
|
"Return non-nil if CONTENT-TYPE designates an HTML content type.
|
|
Currently this means either text/html or application/xhtml+xml."
|
|
(member content-type '("text/html"
|
|
"application/xhtml+xml")))
|
|
|
|
(defun eww--guess-content-type (headers response-buffer)
|
|
"Use HEADERS and RESPONSE-BUFFER to guess the Content-Type.
|
|
Will call each function in `eww-guess-content-type-functions', until one
|
|
of them returns a value. This mechanism is used only if there isn't a
|
|
valid Content-Type header. If none of the functions can guess, return
|
|
\"application/octet-stream\"."
|
|
(save-excursion
|
|
(or (run-hook-with-args-until-success
|
|
'eww-guess-content-type-functions headers response-buffer)
|
|
"application/octet-stream")))
|
|
|
|
(defun eww--html-if-doctype (_headers response-buffer)
|
|
"Return \"text/html\" if RESPONSE-BUFFER has an HTML doctype declaration.
|
|
HEADERS is unused."
|
|
;; https://html.spec.whatwg.org/multipage/syntax.html#the-doctype
|
|
(with-current-buffer response-buffer
|
|
(let ((case-fold-search t))
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
;; Match basic "<!doctype html>" and also legacy variants as
|
|
;; specified in link above -- being purposely lax about it.
|
|
(when (search-forward "<!doctype html" nil t)
|
|
"text/html")))))
|
|
|
|
(defun eww--rename-buffer ()
|
|
"Rename the current EWW buffer.
|
|
The renaming scheme is performed in accordance with
|
|
`eww-auto-rename-buffer'."
|
|
(let ((rename-string)
|
|
(formatter
|
|
(lambda (string)
|
|
(format "*%s # eww*" (truncate-string-to-width
|
|
string eww-buffer-name-length))))
|
|
(site-title (plist-get eww-data :title))
|
|
(site-url (plist-get eww-data :url)))
|
|
(cond ((null eww-auto-rename-buffer))
|
|
((eq eww-auto-rename-buffer 'url)
|
|
(setq rename-string (funcall formatter site-url)))
|
|
((functionp eww-auto-rename-buffer)
|
|
(setq rename-string (funcall eww-auto-rename-buffer)))
|
|
(t (setq rename-string
|
|
(funcall formatter (if (or (equal site-title "")
|
|
(null site-title))
|
|
"Untitled"
|
|
site-title)))))
|
|
(when rename-string
|
|
(rename-buffer rename-string t))))
|
|
|
|
(defun eww-render (status url &optional point buffer encode)
|
|
(let* ((headers (eww-parse-headers))
|
|
(content-type
|
|
(mail-header-parse-content-type
|
|
(if (zerop (length (cdr (assoc "content-type" headers))))
|
|
(eww--guess-content-type headers (current-buffer))
|
|
(cdr (assoc "content-type" headers)))))
|
|
(charset (intern
|
|
(downcase
|
|
(or (cdr (assq 'charset (cdr content-type)))
|
|
(eww-detect-charset (eww-html-p (car content-type)))
|
|
"utf-8"))))
|
|
(data-buffer (current-buffer))
|
|
(shr-target-id (url-target (url-generic-parse-url url)))
|
|
last-coding-system-used)
|
|
(let ((redirect (plist-get status :redirect)))
|
|
(when redirect
|
|
(setq url redirect)))
|
|
(when (buffer-live-p buffer)
|
|
(with-current-buffer buffer
|
|
;; Save the https peer status.
|
|
(plist-put eww-data :peer (plist-get status :peer))
|
|
;; Make buffer listings more informative.
|
|
(setq list-buffers-directory url)
|
|
;; Let the URL library have a handle to the current URL for
|
|
;; referer purposes.
|
|
(setq url-current-lastloc (url-generic-parse-url url)))
|
|
(unwind-protect
|
|
(progn
|
|
(cond
|
|
((and eww-use-external-browser-for-content-type
|
|
(string-match-p eww-use-external-browser-for-content-type
|
|
(car content-type)))
|
|
(erase-buffer)
|
|
(insert "<title>Unsupported content type</title>")
|
|
(insert (format "<h1>Content-type %s is unsupported</h1>"
|
|
(car content-type)))
|
|
(insert (format "<a href=%S>Direct link to the document</a>"
|
|
url))
|
|
(goto-char (point-min))
|
|
(eww-display-html (or encode charset) url nil point buffer))
|
|
((eww-html-p (car content-type))
|
|
(eww-display-html (or encode charset) url nil point buffer))
|
|
((equal (car content-type) "application/pdf")
|
|
(eww-display-pdf))
|
|
((string-match-p "\\`image/" (car content-type))
|
|
(eww-display-image buffer))
|
|
(t
|
|
(eww-display-raw buffer (or encode charset 'utf-8))))
|
|
(with-current-buffer buffer
|
|
(plist-put eww-data :url url)
|
|
(eww--after-page-change)
|
|
(and last-coding-system-used
|
|
(set-buffer-file-coding-system last-coding-system-used))
|
|
(unless shr-fill-text
|
|
(visual-line-mode)
|
|
(visual-wrap-prefix-mode))
|
|
(run-hooks 'eww-after-render-hook)
|
|
;; Enable undo again so that undo works in text input
|
|
;; boxes.
|
|
(setq buffer-undo-list nil)))
|
|
(kill-buffer data-buffer)))
|
|
(unless (buffer-live-p buffer)
|
|
(kill-buffer data-buffer))))
|
|
|
|
(defun eww-parse-headers ()
|
|
(let ((headers nil))
|
|
(goto-char (point-min))
|
|
(while (and (not (eobp))
|
|
(not (eolp)))
|
|
(when (looking-at "\\([^:]+\\): *\\(.*\\)")
|
|
(push (cons (downcase (match-string 1))
|
|
(match-string 2))
|
|
headers))
|
|
(forward-line 1))
|
|
(unless (eobp)
|
|
(forward-line 1))
|
|
headers))
|
|
|
|
(defun eww-detect-charset (html-p)
|
|
(let ((case-fold-search t)
|
|
(pt (point)))
|
|
(or (and html-p
|
|
(re-search-forward
|
|
"<meta[\t\n\r ]+[^>]*charset=\"?\\([^\t\n\r \"/>]+\\)[\\\"'.*]" nil t)
|
|
(goto-char pt)
|
|
(match-string 1))
|
|
(and (looking-at
|
|
"[\t\n\r ]*<\\?xml[\t\n\r ]+[^>]*encoding=\"\\([^\"]+\\)")
|
|
(match-string 1)))))
|
|
|
|
(declare-function libxml-parse-html-region "xml.c"
|
|
(start end &optional base-url discard-comments))
|
|
|
|
(defun eww--parse-html-region (start end &optional coding-system)
|
|
"Parse the HTML between START and END, returning the DOM as an S-expression.
|
|
Use CODING-SYSTEM to decode the region; if nil, decode as UTF-8.
|
|
|
|
This replaces the region with the preprocessed HTML."
|
|
(setq coding-system (or coding-system 'utf-8))
|
|
(with-restriction start end
|
|
(condition-case nil
|
|
(decode-coding-region (point-min) (point-max) coding-system)
|
|
(coding-system-error nil))
|
|
;; Remove CRLF and replace NUL with � before parsing.
|
|
(while (re-search-forward "\\(\r$\\)\\|\0" nil t)
|
|
(replace-match (if (match-beginning 1) "" "�") t t))
|
|
(eww--preprocess-html (point-min) (point-max))
|
|
(libxml-parse-html-region (point-min) (point-max))))
|
|
|
|
(defsubst eww-document-base (url dom)
|
|
`(base ((href . ,url)) ,dom))
|
|
|
|
(defun eww-display-document (document &optional point buffer)
|
|
(unless (fboundp 'libxml-parse-html-region)
|
|
(error "This function requires Emacs to be compiled with libxml2"))
|
|
(setq buffer (or buffer (current-buffer)))
|
|
(unless (buffer-live-p buffer)
|
|
(error "Buffer %s doesn't exist" buffer))
|
|
;; There should be a better way to abort loading images
|
|
;; asynchronously.
|
|
(setq url-queue nil)
|
|
(let ((url (when (eq (car document) 'base)
|
|
(alist-get 'href (cadr document)))))
|
|
(unless url
|
|
(error "Document is missing base URL"))
|
|
(with-current-buffer buffer
|
|
(setq bidi-paragraph-direction nil)
|
|
(plist-put eww-data :dom document)
|
|
(let ((inhibit-read-only t)
|
|
(inhibit-modification-hooks t)
|
|
;; Possibly set by the caller, e.g., `eww-render' which
|
|
;; preserves the old URL #target before chasing redirects.
|
|
(shr-target-id (or shr-target-id
|
|
(url-target (url-generic-parse-url url))))
|
|
(shr-external-rendering-functions
|
|
(append
|
|
shr-external-rendering-functions
|
|
'((title . eww-tag-title)
|
|
(form . eww-tag-form)
|
|
(input . eww-tag-input)
|
|
(button . eww-form-submit)
|
|
(textarea . eww-tag-textarea)
|
|
(select . eww-tag-select)
|
|
(link . eww-tag-link)
|
|
(meta . eww-tag-meta)
|
|
(a . eww-tag-a)))))
|
|
(erase-buffer)
|
|
(with-delayed-message (2 "Rendering HTML...")
|
|
(shr-insert-document document))
|
|
(cond
|
|
(point
|
|
(goto-char point))
|
|
(shr-target-id
|
|
(goto-char (point-min))
|
|
(let ((match (text-property-search-forward
|
|
'shr-target-id shr-target-id #'member)))
|
|
(when match
|
|
(goto-char (prop-match-beginning match)))))
|
|
(t
|
|
(goto-char (point-min))
|
|
;; Don't leave point inside forms, because the normal eww
|
|
;; commands aren't available there.
|
|
(while (and (not (eobp))
|
|
(get-text-property (point) 'eww-form))
|
|
(forward-line 1)))))
|
|
(eww-size-text-inputs))))
|
|
|
|
(defun eww-display-html (charset url &optional document point buffer)
|
|
(let ((source (buffer-substring (point) (point-max))))
|
|
(with-current-buffer buffer
|
|
(plist-put eww-data :source source)))
|
|
(unless document
|
|
(let ((dom (eww--parse-html-region (point) (point-max) charset)))
|
|
(when (eww-default-readable-p url)
|
|
(eww-score-readability dom)
|
|
(setq dom (eww-highest-readability dom))
|
|
(with-current-buffer buffer
|
|
(plist-put eww-data :readable t)))
|
|
(setq document (eww-document-base url dom))))
|
|
(eww-display-document document point buffer))
|
|
|
|
(defun eww-handle-link (dom)
|
|
(let* ((rel (dom-attr dom 'rel))
|
|
(href (dom-attr dom 'href))
|
|
(where (assoc
|
|
;; The text associated with :rel is case-insensitive.
|
|
(if rel (downcase rel))
|
|
'(("next" . :next)
|
|
;; Texinfo uses "previous", but HTML specifies
|
|
;; "prev", so recognize both.
|
|
("previous" . :previous)
|
|
("prev" . :previous)
|
|
;; HTML specifies "start" but also "contents",
|
|
;; and Gtk seems to use "home". Recognize
|
|
;; them all; but store them in different
|
|
;; variables so that we can readily choose the
|
|
;; "best" one.
|
|
("start" . :start)
|
|
("home" . :home)
|
|
("contents" . :contents)
|
|
("up" . :up)))))
|
|
(when (and href where)
|
|
(when (memq (cdr where) '(:next :previous))
|
|
;; Multi-page isearch support.
|
|
(setq-local multi-isearch-next-buffer-function
|
|
#'eww-isearch-next-buffer))
|
|
(plist-put eww-data (cdr where) href))))
|
|
|
|
(defvar eww-redirect-level 1)
|
|
|
|
(defun eww-tag-meta (dom)
|
|
(when (and (cl-equalp (dom-attr dom 'http-equiv) "refresh")
|
|
(< eww-redirect-level 5))
|
|
(when-let* ((refresh (dom-attr dom 'content)))
|
|
(when (or (string-match "^\\([0-9]+\\) *;.*url=\"\\([^\"]+\\)\"" refresh)
|
|
(string-match "^\\([0-9]+\\) *;.*url='\\([^']+\\)'" refresh)
|
|
(string-match "^\\([0-9]+\\) *;.*url=\\([^ ]+\\)" refresh))
|
|
(let ((timeout (match-string 1 refresh))
|
|
(url (match-string 2 refresh))
|
|
(eww-redirect-level (1+ eww-redirect-level)))
|
|
(if (equal timeout "0")
|
|
(eww (shr-expand-url url))
|
|
(eww-tag-a
|
|
(dom-node 'a `((href . ,(shr-expand-url url)))
|
|
(format "Auto refresh in %s second%s disabled"
|
|
timeout
|
|
(if (equal timeout "1")
|
|
""
|
|
"s"))))))))))
|
|
|
|
(defun eww-tag-link (dom)
|
|
(eww-handle-link dom)
|
|
(shr-generic dom))
|
|
|
|
(defun eww-tag-a (dom)
|
|
(eww-handle-link dom)
|
|
(let ((start (point)))
|
|
(shr-tag-a dom)
|
|
(if (dom-attr dom 'href)
|
|
(put-text-property start (point)
|
|
'keymap
|
|
(if (mm-images-in-region-p start (point))
|
|
eww-image-link-keymap
|
|
eww-link-keymap)))))
|
|
|
|
(defun eww--limit-string-pixelwise (string pixels)
|
|
(if (not pixels)
|
|
string
|
|
(with-temp-buffer
|
|
(insert string)
|
|
(if (< (eww--pixel-column) pixels)
|
|
string
|
|
;; Iterate to find appropriate length.
|
|
(while (and (> (eww--pixel-column) pixels)
|
|
(not (bobp)))
|
|
(forward-char -1))
|
|
;; Return at least one character.
|
|
(buffer-substring (point-min) (max (point)
|
|
(1+ (point-min))))))))
|
|
|
|
(defun eww--pixel-column ()
|
|
(if (not (get-buffer-window (current-buffer)))
|
|
(save-window-excursion
|
|
;; Avoid errors if the selected window is a dedicated one,
|
|
;; and they just want to insert a document into it.
|
|
(set-window-dedicated-p nil nil)
|
|
(set-window-buffer nil (current-buffer))
|
|
(car (window-text-pixel-size nil (line-beginning-position) (point))))
|
|
(car (window-text-pixel-size nil (line-beginning-position) (point)))))
|
|
|
|
(defun eww-update-header-line-format ()
|
|
(setq header-line-format
|
|
(and eww-header-line-format
|
|
(let ((peer (plist-get eww-data :peer))
|
|
(url (plist-get eww-data :url))
|
|
(title (propertize
|
|
(if (zerop (length (plist-get eww-data :title)))
|
|
"[untitled]"
|
|
(plist-get eww-data :title))
|
|
'face 'variable-pitch)))
|
|
;; This connection is https.
|
|
(when peer
|
|
(add-face-text-property 0 (length title)
|
|
(if (plist-get peer :warnings)
|
|
'eww-invalid-certificate
|
|
'eww-valid-certificate)
|
|
t title))
|
|
;; Limit the length of the title so that the host name
|
|
;; of the URL is always visible.
|
|
(when url
|
|
(setq url (propertize url 'face 'variable-pitch))
|
|
(let* ((parsed (url-generic-parse-url url))
|
|
(host-length (string-pixel-width
|
|
(propertize
|
|
(format "%s://%s" (url-type parsed)
|
|
(url-host parsed))
|
|
'face 'variable-pitch)))
|
|
(width (window-width nil t)))
|
|
(cond
|
|
;; The host bit is wider than the window, so nix
|
|
;; the title.
|
|
((> (+ host-length (string-pixel-width "xxxxx")) width)
|
|
(setq title ""))
|
|
;; Trim the title.
|
|
((> (+ (string-pixel-width (concat title "xx"))
|
|
host-length)
|
|
width)
|
|
(setq title
|
|
(concat
|
|
(eww--limit-string-pixelwise
|
|
title (- width host-length
|
|
(string-pixel-width
|
|
(propertize "...: " 'face
|
|
'variable-pitch))))
|
|
(propertize "..." 'face 'variable-pitch)))))))
|
|
(string-replace
|
|
"%" "%%"
|
|
(format-spec
|
|
eww-header-line-format
|
|
`((?u . ,(or url ""))
|
|
(?t . ,title))))))))
|
|
|
|
(defun eww--before-browse ()
|
|
(funcall eww-before-browse-history-function)
|
|
(setq eww-history-position 0
|
|
eww-data (list :title "")))
|
|
|
|
(defun eww--after-page-change ()
|
|
(eww-update-header-line-format)
|
|
(eww--rename-buffer))
|
|
|
|
(defun eww-tag-title (dom)
|
|
(plist-put eww-data :title
|
|
(replace-regexp-in-string
|
|
"^ \\| $" ""
|
|
(replace-regexp-in-string "[ \t\r\n]+" " " (dom-text dom))))
|
|
(eww--after-page-change))
|
|
|
|
(defun eww-display-raw (buffer &optional encode)
|
|
(let ((data (buffer-substring (point) (point-max))))
|
|
(unless (buffer-live-p buffer)
|
|
(error "Buffer %s doesn't exist" buffer))
|
|
(with-current-buffer buffer
|
|
(let ((inhibit-read-only t))
|
|
(erase-buffer)
|
|
(insert data)
|
|
(condition-case nil
|
|
(decode-coding-region (point-min) (1+ (length data)) encode)
|
|
(coding-system-error nil)))
|
|
(goto-char (point-min)))))
|
|
|
|
(defun eww-display-image (buffer)
|
|
(let ((data (shr-parse-image-data)))
|
|
(unless (buffer-live-p buffer)
|
|
(error "Buffer %s doesn't exist" buffer))
|
|
(with-current-buffer buffer
|
|
(let ((inhibit-read-only t))
|
|
(erase-buffer)
|
|
(shr-put-image data nil))
|
|
(goto-char (point-min)))))
|
|
|
|
(declare-function mailcap-view-mime "mailcap" (type))
|
|
(defun eww-display-pdf ()
|
|
(let ((buf (current-buffer))
|
|
(pos (point)))
|
|
(with-current-buffer (get-buffer-create "*eww pdf*")
|
|
(let ((inhibit-read-only t))
|
|
(erase-buffer)
|
|
(set-buffer-multibyte nil)
|
|
(insert-buffer-substring buf pos)
|
|
(mailcap-view-mime "application/pdf"))
|
|
(if (zerop (buffer-size))
|
|
;; Buffer contents passed to shell command via temporary file.
|
|
(kill-buffer)
|
|
(goto-char (point-min))
|
|
(pop-to-buffer-same-window (current-buffer))))))
|
|
|
|
(defun eww-setup-buffer ()
|
|
(when (or (plist-get eww-data :url)
|
|
(plist-get eww-data :dom))
|
|
(eww-save-history))
|
|
(let ((inhibit-read-only t))
|
|
(remove-overlays)
|
|
(erase-buffer))
|
|
(setq bidi-paragraph-direction nil)
|
|
;; May be set later if there's a next/prev link.
|
|
(setq-local multi-isearch-next-buffer-function nil)
|
|
(unless (eq major-mode 'eww-mode)
|
|
(eww-mode))
|
|
(buffer-disable-undo))
|
|
|
|
(defun eww-current-url nil
|
|
"Return URI of the Web page the current EWW buffer is visiting."
|
|
(plist-get eww-data :url))
|
|
|
|
(defun eww-links-at-point ()
|
|
"Return list of URIs, if any, linked at point."
|
|
(seq-filter #'stringp
|
|
(list (get-text-property (point) 'shr-url)
|
|
(get-text-property (point) 'image-url))))
|
|
|
|
(defun eww-view-source ()
|
|
"View the HTML source code of the current page."
|
|
(interactive nil eww-mode)
|
|
(let ((buf (get-buffer-create "*eww-source*"))
|
|
(source (plist-get eww-data :source)))
|
|
(with-current-buffer buf
|
|
(let ((inhibit-read-only t))
|
|
(delete-region (point-min) (point-max))
|
|
(insert (or source "no source"))
|
|
(goto-char (point-min))
|
|
;; Decode the source and set the buffer's encoding according
|
|
;; to what the HTML source specifies in its 'charset' header,
|
|
;; if any.
|
|
(let ((cs (find-auto-coding "" (point-max))))
|
|
(when (consp cs)
|
|
(setq cs (car cs))
|
|
(when (coding-system-p cs)
|
|
(decode-coding-region (point-min) (point-max) cs)
|
|
(setq buffer-file-coding-system last-coding-system-used))))
|
|
(cond
|
|
((fboundp 'mhtml-mode)
|
|
(mhtml-mode))
|
|
((fboundp 'html-mode)
|
|
(html-mode)))))
|
|
(view-buffer buf)))
|
|
|
|
(defun eww-toggle-paragraph-direction ()
|
|
"Cycle the paragraph direction between left-to-right, right-to-left and auto."
|
|
(interactive nil eww-mode)
|
|
(setq bidi-paragraph-direction
|
|
(cond ((eq bidi-paragraph-direction 'left-to-right)
|
|
nil)
|
|
((eq bidi-paragraph-direction 'right-to-left)
|
|
'left-to-right)
|
|
(t
|
|
'right-to-left)))
|
|
(message "The paragraph direction is now %s"
|
|
(if (null bidi-paragraph-direction)
|
|
"automatic"
|
|
bidi-paragraph-direction)))
|
|
|
|
(defun eww-readable (&optional arg)
|
|
"Toggle display of only the main \"readable\" parts of the current web page.
|
|
This command uses heuristics to find the parts of the web page that
|
|
contain the main textual portion, leaving out navigation menus and the
|
|
like.
|
|
|
|
If called interactively, toggle the display of the readable parts. If
|
|
the prefix argument is positive, display the readable parts, and if it
|
|
is zero or negative, display the full page.
|
|
|
|
If called from Lisp, toggle the display of the readable parts if ARG is
|
|
`toggle'. Display the readable parts if ARG is nil, omitted, or is a
|
|
positive number. Display the full page if ARG is a negative number.
|
|
|
|
When `eww-readable-adds-to-history' is non-nil, calling this function
|
|
adds a new entry to `eww-history'."
|
|
(interactive (list (if current-prefix-arg
|
|
(prefix-numeric-value current-prefix-arg)
|
|
'toggle))
|
|
eww-mode)
|
|
(let* ((old-data eww-data)
|
|
(make-readable (cond
|
|
((eq arg 'toggle)
|
|
(not (plist-get old-data :readable)))
|
|
((and (numberp arg) (< arg 1))
|
|
nil)
|
|
(t t)))
|
|
(dom (with-temp-buffer
|
|
(insert (plist-get old-data :source))
|
|
(eww--parse-html-region (point-min) (point-max))))
|
|
(base (plist-get eww-data :url)))
|
|
(when make-readable
|
|
(eww-score-readability dom)
|
|
(setq dom (eww-highest-readability dom)))
|
|
(when eww-readable-adds-to-history
|
|
(eww-save-history)
|
|
(eww--before-browse)
|
|
(dolist (elem '(:source :url :title :next :previous :up :peer))
|
|
(plist-put eww-data elem (plist-get old-data elem))))
|
|
(eww-display-document (eww-document-base base dom))
|
|
(plist-put eww-data :readable make-readable)
|
|
(eww--after-page-change)))
|
|
|
|
(defun eww-score-readability (node)
|
|
(let ((score -1))
|
|
(cond
|
|
((memq (dom-tag node) '(script head comment))
|
|
(setq score -2))
|
|
((eq (dom-tag node) 'meta)
|
|
(setq score -1))
|
|
((eq (dom-tag node) 'img)
|
|
(setq score 2))
|
|
((eq (dom-tag node) 'a)
|
|
(setq score (- (length (split-string (dom-text node))))))
|
|
(t
|
|
(dolist (elem (dom-children node))
|
|
(cond
|
|
((stringp elem)
|
|
(setq score (+ score (length (split-string elem)))))
|
|
((consp elem)
|
|
(setq score (+ score
|
|
(or (cdr (assoc :eww-readability-score (cdr elem)))
|
|
(eww-score-readability elem)))))))))
|
|
;; Cache the score of the node to avoid recomputing all the time.
|
|
(dom-set-attribute node :eww-readability-score score)
|
|
score))
|
|
|
|
(defun eww-highest-readability (node)
|
|
(let ((result node)
|
|
highest)
|
|
(dolist (elem (dom-non-text-children node))
|
|
(when (> (or (dom-attr
|
|
(setq highest (eww-highest-readability elem))
|
|
:eww-readability-score)
|
|
most-negative-fixnum)
|
|
(or (dom-attr result :eww-readability-score)
|
|
most-negative-fixnum))
|
|
;; We set a lower bound to how long we accept that the
|
|
;; readable portion of the page is going to be.
|
|
(when (> (length (split-string (dom-texts highest))) 100)
|
|
(setq result highest))))
|
|
result))
|
|
|
|
(defun eww-default-readable-p (url)
|
|
"Return non-nil if URL should be displayed in readable mode by default.
|
|
This consults the entries in `eww-readable-urls' (which see)."
|
|
(catch 'found
|
|
(let (result)
|
|
(dolist (regexp eww-readable-urls)
|
|
(if (consp regexp)
|
|
(setq result (cdr regexp)
|
|
regexp (car regexp))
|
|
(setq result t))
|
|
(when (string-match regexp url)
|
|
(throw 'found result))))))
|
|
|
|
(defvar-keymap eww-mode-map
|
|
"g" #'eww-reload ;FIXME: revert-buffer-function instead!
|
|
"G" #'eww
|
|
"M-RET" #'eww-open-in-new-buffer
|
|
"TAB" #'shr-next-link
|
|
"C-M-i" #'shr-previous-link
|
|
"<backtab>" #'shr-previous-link
|
|
"<delete>" #'scroll-down-command
|
|
"l" #'eww-back-url
|
|
"r" #'eww-forward-url
|
|
"n" #'eww-next-url
|
|
"p" #'eww-previous-url
|
|
"u" #'eww-up-url
|
|
"t" #'eww-top-url
|
|
"&" #'eww-browse-with-external-browser
|
|
"d" #'eww-download
|
|
"w" #'eww-copy-page-url
|
|
"A" #'eww-copy-alternate-url
|
|
"C" #'url-cookie-list
|
|
"v" #'eww-view-source
|
|
"R" #'eww-readable
|
|
"H" #'eww-list-histories
|
|
"E" #'eww-set-character-encoding
|
|
"s" #'eww-switch-to-buffer
|
|
"S" #'eww-list-buffers
|
|
"F" #'eww-toggle-fonts
|
|
"D" #'eww-toggle-paragraph-direction
|
|
"M-C" #'eww-toggle-colors
|
|
"M-I" #'eww-toggle-images
|
|
|
|
"b" #'eww-add-bookmark
|
|
"B" #'eww-list-bookmarks
|
|
"M-n" #'eww-next-bookmark
|
|
"M-p" #'eww-previous-bookmark
|
|
|
|
"<mouse-8>" #'eww-back-url
|
|
"<mouse-9>" #'eww-forward-url
|
|
|
|
:menu '("Eww"
|
|
["Exit" quit-window t]
|
|
["Close browser" quit-window t]
|
|
["Reload" eww-reload t]
|
|
["Follow URL in new buffer" eww-open-in-new-buffer]
|
|
["Back to previous page" eww-back-url
|
|
:active (< eww-history-position (length eww-history))]
|
|
["Forward to next page" eww-forward-url
|
|
:active (> eww-history-position 1)]
|
|
["Browse with external browser" eww-browse-with-external-browser t]
|
|
["Download" eww-download t]
|
|
["View page source" eww-view-source]
|
|
["Copy page URL" eww-copy-page-url t]
|
|
["List histories" eww-list-histories t]
|
|
["Switch to buffer" eww-switch-to-buffer t]
|
|
["List buffers" eww-list-buffers t]
|
|
["Add bookmark" eww-add-bookmark t]
|
|
["List bookmarks" eww-list-bookmarks t]
|
|
["List cookies" url-cookie-list t]
|
|
["Toggle fonts" eww-toggle-fonts t]
|
|
["Toggle colors" eww-toggle-colors t]
|
|
["Toggle images" eww-toggle-images t]
|
|
["Character Encoding" eww-set-character-encoding]
|
|
["Toggle Paragraph Direction" eww-toggle-paragraph-direction]))
|
|
|
|
(defun eww-context-menu (menu click)
|
|
"Populate MENU with eww commands at CLICK."
|
|
(define-key menu [eww-separator] menu-bar-separator)
|
|
(let ((easy-menu (make-sparse-keymap "Eww")))
|
|
(easy-menu-define nil easy-menu nil
|
|
'("Eww"
|
|
["Back to previous page" eww-back-url
|
|
:active (< eww-history-position (length eww-history))]
|
|
["Forward to next page" eww-forward-url
|
|
:active (> eww-history-position 1)]
|
|
["Reload" eww-reload t]))
|
|
(dolist (item (reverse (lookup-key easy-menu [menu-bar eww])))
|
|
(when (consp item)
|
|
(define-key menu (vector (car item)) (cdr item)))))
|
|
|
|
(when (or (mouse-posn-property (event-start click) 'shr-url)
|
|
(mouse-posn-property (event-start click) 'image-url))
|
|
(define-key menu [shr-mouse-browse-url-new-window]
|
|
`(menu-item "Follow URL in new window" ,(if browse-url-new-window-flag
|
|
'shr-mouse-browse-url
|
|
'shr-mouse-browse-url-new-window)
|
|
:help "Browse the URL under the mouse cursor in a new window"))
|
|
(define-key menu [shr-mouse-browse-url]
|
|
`(menu-item "Follow URL" ,(if browse-url-new-window-flag
|
|
'shr-mouse-browse-url-new-window
|
|
'shr-mouse-browse-url)
|
|
:help "Browse the URL under the mouse cursor")))
|
|
|
|
menu)
|
|
|
|
(defvar eww-tool-bar-map
|
|
(let ((map (make-sparse-keymap)))
|
|
(dolist (tool-bar-item
|
|
'((quit-window . "close")
|
|
(eww-reload . "refresh")
|
|
(eww-back-url . "left-arrow")
|
|
(eww-forward-url . "right-arrow")
|
|
(eww-view-source . "show")
|
|
(eww-copy-page-url . "copy")
|
|
(eww-add-bookmark . "bookmark_add"))) ;; ...
|
|
(tool-bar-local-item-from-menu
|
|
(car tool-bar-item) (cdr tool-bar-item) map eww-mode-map))
|
|
map)
|
|
"Tool bar for `eww-mode'.")
|
|
|
|
(declare-function set-text-conversion-style "textconv.c")
|
|
|
|
(defun eww-check-text-conversion ()
|
|
"Check if point is within a field and toggle text conversion.
|
|
Set `text-conversion-style' to the value `action' if it isn't
|
|
already and point is within the prompt field, or if
|
|
`text-conversion-style' is nil, so as to guarantee that
|
|
the input method functions properly for the purpose of typing
|
|
within text input fields."
|
|
(when (and (eq major-mode 'eww-mode)
|
|
(fboundp 'set-text-conversion-style))
|
|
(if (eq (car-safe (get-text-property (point) 'field))
|
|
:eww-form)
|
|
(unless (eq text-conversion-style 'action)
|
|
(set-text-conversion-style 'action))
|
|
(unless (not text-conversion-style)
|
|
(set-text-conversion-style nil)))))
|
|
|
|
;; Autoload cookie needed by desktop.el.
|
|
;;;###autoload
|
|
(define-derived-mode eww-mode special-mode "eww"
|
|
"Mode for browsing the web.
|
|
|
|
\\{eww-mode-map}"
|
|
:interactive nil
|
|
(setq-local eww-data (list :title ""))
|
|
(setq-local browse-url-browser-function #'eww-browse-url)
|
|
(add-hook 'after-change-functions #'eww-process-text-input nil t)
|
|
(add-hook 'context-menu-functions 'eww-context-menu 5 t)
|
|
(setq-local eww-history nil)
|
|
(setq-local eww-history-position 0)
|
|
(when (boundp 'tool-bar-map)
|
|
(setq-local tool-bar-map eww-tool-bar-map))
|
|
;; desktop support
|
|
(setq-local desktop-save-buffer #'eww-desktop-misc-data)
|
|
(setq truncate-lines t)
|
|
;; visual-wrap-prefix-mode support
|
|
(setq-local adaptive-fill-function #'shr-adaptive-fill-function)
|
|
;; thingatpt support
|
|
(setq-local thing-at-point-provider-alist
|
|
(cons '(url . eww--url-at-point)
|
|
thing-at-point-provider-alist))
|
|
(setq-local forward-thing-provider-alist
|
|
(cons '(url . eww--forward-url)
|
|
forward-thing-provider-alist))
|
|
(setq-local bounds-of-thing-at-point-provider-alist
|
|
(cons '(url . eww--bounds-of-url-at-point)
|
|
bounds-of-thing-at-point-provider-alist))
|
|
(setq-local bookmark-make-record-function #'eww-bookmark-make-record)
|
|
(buffer-disable-undo)
|
|
(setq-local shr-url-transformer #'eww--transform-url)
|
|
;; Also rescale images when rescaling the text.
|
|
(add-hook 'text-scale-mode-hook #'eww--rescale-images nil t)
|
|
(setq-local outline-search-function 'shr-outline-search
|
|
outline-level 'shr-outline-level)
|
|
(add-hook 'post-command-hook #'eww-check-text-conversion nil t)
|
|
(setq buffer-read-only t)
|
|
;; Insertion at the first character of a field should inherit the
|
|
;; field's face, form and field, not the previous character's.
|
|
(setq text-property-default-nonsticky '((face . t) (eww-form . t)
|
|
(field . t))))
|
|
|
|
(declare-function imagep "image.c")
|
|
(defvar text-scale-mode)
|
|
(defvar text-scale-mode-amount)
|
|
(defun eww--rescale-images ()
|
|
(let ((scaling (if text-scale-mode
|
|
(+ 1 (* text-scale-mode-amount 0.1))
|
|
1)))
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(while-let ((match (text-property-search-forward
|
|
'display nil
|
|
(lambda (_ value)
|
|
(and value (get-display-property
|
|
nil 'image nil value))))))
|
|
(let* ((image (cons 'image
|
|
(get-display-property nil 'image nil
|
|
(prop-match-value match))))
|
|
(original-scale (or (image-property image :original-scale)
|
|
(setf (image-property image :original-scale)
|
|
(or (image-property image :scale)
|
|
'default)))))
|
|
(when (eq original-scale 'default)
|
|
(setq original-scale (image-compute-scaling-factor
|
|
image-scaling-factor)))
|
|
(setf (image-property image :scale)
|
|
(* original-scale scaling)))))))
|
|
|
|
(defun eww--url-at-point ()
|
|
"`thing-at-point' provider function."
|
|
(thing-at-point-for-char-property 'shr-url))
|
|
|
|
(defun eww--forward-url (backward)
|
|
"`forward-thing' provider function."
|
|
(forward-thing-for-char-property 'shr-url backward))
|
|
|
|
(defun eww--bounds-of-url-at-point ()
|
|
"`bounds-of-thing-at-point' provider function."
|
|
(bounds-of-thing-at-point-for-char-property 'shr-url))
|
|
|
|
;;;###autoload
|
|
(defun eww-browse-url (url &optional new-window)
|
|
"Ask the EWW browser to load URL.
|
|
|
|
Interactively, if the variable `browse-url-new-window-flag' is non-nil,
|
|
loads the document in a new buffer tab on the window tab-line. A non-nil
|
|
prefix argument reverses the effect of `browse-url-new-window-flag'.
|
|
|
|
If `tab-bar-mode' is enabled, then whenever a document would
|
|
otherwise be loaded in a new buffer, it is loaded in a new tab
|
|
in the tab-bar on an existing frame. See more options in
|
|
`eww-browse-url-new-window-is-tab'.
|
|
|
|
Non-interactively, this uses the optional second argument NEW-WINDOW
|
|
instead of `browse-url-new-window-flag'."
|
|
(when new-window
|
|
(when (or (eq eww-browse-url-new-window-is-tab t)
|
|
(and (eq eww-browse-url-new-window-is-tab 'tab-bar)
|
|
tab-bar-mode))
|
|
(let ((tab-bar-new-tab-choice t))
|
|
(tab-new)))
|
|
(pop-to-buffer-same-window
|
|
(generate-new-buffer
|
|
(format "*eww-%s*" (url-host (url-generic-parse-url
|
|
(eww--dwim-expand-url url))))))
|
|
(eww-mode))
|
|
(let ((url-allow-non-local-files t))
|
|
(eww url)))
|
|
|
|
(function-put 'eww-browse-url 'browse-url-browser-kind 'internal)
|
|
|
|
(defun eww-back-url ()
|
|
"Go to the previously displayed page."
|
|
(interactive nil eww-mode)
|
|
(when (>= eww-history-position (length eww-history))
|
|
(user-error "No previous page"))
|
|
(if (eww-save-history)
|
|
;; We were at the latest page (which was just added to the
|
|
;; history), so go back two entries.
|
|
(setq eww-history-position 2)
|
|
(setq eww-history-position (1+ eww-history-position)))
|
|
(eww-restore-history (elt eww-history (1- eww-history-position))))
|
|
|
|
(defun eww-forward-url ()
|
|
"Go to the next displayed page."
|
|
(interactive nil eww-mode)
|
|
(when (<= eww-history-position 1)
|
|
(user-error "No next page"))
|
|
(eww-save-history)
|
|
(setq eww-history-position (1- eww-history-position))
|
|
(eww-restore-history (elt eww-history (1- eww-history-position))))
|
|
|
|
(defun eww-restore-history (elem)
|
|
(let ((inhibit-read-only t)
|
|
(inhibit-modification-hooks t)
|
|
(text (plist-get elem :text)))
|
|
(setq eww-data elem)
|
|
(if (null text)
|
|
(eww-reload) ; FIXME: restore :point?
|
|
(erase-buffer)
|
|
(insert text)
|
|
(goto-char (plist-get elem :point))
|
|
;; Make buffer listings more informative.
|
|
(setq list-buffers-directory (plist-get elem :url))
|
|
(eww--after-page-change))))
|
|
|
|
(defun eww-next-url ()
|
|
"Go to the page marked `next'.
|
|
A page is marked `next' if rel=\"next\" appears in a <link>
|
|
or <a> tag."
|
|
(interactive nil eww-mode)
|
|
(if (plist-get eww-data :next)
|
|
(eww-browse-url (shr-expand-url (plist-get eww-data :next)
|
|
(plist-get eww-data :url)))
|
|
(user-error "No `next' on this page")))
|
|
|
|
(defun eww-previous-url ()
|
|
"Go to the page marked `previous'.
|
|
A page is marked `previous' if rel=\"previous\" appears in a <link>
|
|
or <a> tag."
|
|
(interactive nil eww-mode)
|
|
(if (plist-get eww-data :previous)
|
|
(eww-browse-url (shr-expand-url (plist-get eww-data :previous)
|
|
(plist-get eww-data :url)))
|
|
(user-error "No `previous' on this page")))
|
|
|
|
(defun eww-up-url ()
|
|
"Go to the page marked `up'.
|
|
A page is marked `up' if rel=\"up\" appears in a <link>
|
|
or <a> tag."
|
|
(interactive nil eww-mode)
|
|
(if (plist-get eww-data :up)
|
|
(eww-browse-url (shr-expand-url (plist-get eww-data :up)
|
|
(plist-get eww-data :url)))
|
|
(user-error "No `up' on this page")))
|
|
|
|
(defun eww-top-url ()
|
|
"Go to the page marked `top'.
|
|
A page is marked `top' if rel=\"start\", rel=\"home\", or rel=\"contents\"
|
|
appears in a <link> or <a> tag."
|
|
(interactive nil eww-mode)
|
|
(let ((best-url (or (plist-get eww-data :start)
|
|
(plist-get eww-data :contents)
|
|
(plist-get eww-data :home))))
|
|
(if best-url
|
|
(eww-browse-url (shr-expand-url best-url (plist-get eww-data :url)))
|
|
(user-error "No `top' for this page"))))
|
|
|
|
(defun eww-reload (&optional local encode)
|
|
"Reload the current page.
|
|
If LOCAL is non-nil (interactively, the command was invoked with
|
|
a prefix argument), don't reload the page from the network, but
|
|
just re-display the HTML already fetched."
|
|
(interactive "P" eww-mode)
|
|
(let ((url (plist-get eww-data :url)))
|
|
(if local
|
|
(if (null (plist-get eww-data :dom))
|
|
(error "No current HTML data")
|
|
(eww-display-document (plist-get eww-data :dom) (point)))
|
|
(let ((parsed (url-generic-parse-url url)))
|
|
(if (equal (url-type parsed) "file")
|
|
;; Use Tramp instead of url.el for files (since url.el
|
|
;; doesn't work well with Tramp files).
|
|
(let ((eww-buffer (current-buffer)))
|
|
(with-current-buffer (eww--file-buffer (url-filename parsed))
|
|
(eww-render nil url nil eww-buffer)))
|
|
(let ((url-mime-accept-string eww-accept-content-types))
|
|
(eww-retrieve url #'eww-render
|
|
(list url (point) (current-buffer) encode))))))))
|
|
|
|
;; Form support.
|
|
|
|
(defvar eww-form nil)
|
|
|
|
(defvar-keymap eww-submit-map
|
|
"RET" #'eww-submit
|
|
"C-c C-c" #'eww-submit
|
|
"<mouse-2>" #'eww-submit)
|
|
|
|
(defvar-keymap eww-submit-file
|
|
"RET" #'eww-select-file
|
|
"C-c C-c" #'eww-submit
|
|
"<mouse-2>" #'eww-select-file)
|
|
|
|
(defvar-keymap eww-checkbox-map
|
|
"SPC" #'eww-toggle-checkbox
|
|
"RET" #'eww-toggle-checkbox
|
|
"C-c C-c" #'eww-submit
|
|
"<mouse-2>" #'eww-toggle-checkbox)
|
|
|
|
(defvar-keymap eww-text-map
|
|
:full t :parent text-mode-map
|
|
"RET" #'eww-submit
|
|
"C-a" #'eww-beginning-of-text
|
|
"C-c C-c" #'eww-submit
|
|
"C-e" #'eww-end-of-text
|
|
"TAB" #'shr-next-link
|
|
"M-TAB" #'shr-previous-link
|
|
"<backtab>" #'shr-previous-link)
|
|
|
|
(defvar-keymap eww-textarea-map
|
|
:full t :parent text-mode-map
|
|
"RET" #'forward-line
|
|
"C-c C-c" #'eww-submit
|
|
"TAB" #'shr-next-link
|
|
"M-TAB" #'shr-previous-link
|
|
"<backtab>" #'shr-previous-link)
|
|
|
|
(defvar-keymap eww-select-map
|
|
:doc "Map for select buttons"
|
|
"RET" #'eww-change-select
|
|
"<follow-link>" 'mouse-face
|
|
"<mouse-2>" #'eww-change-select
|
|
"C-c C-c" #'eww-submit)
|
|
|
|
(defun eww-beginning-of-text ()
|
|
"Move to the start of the input field."
|
|
(interactive nil eww-mode)
|
|
(goto-char (eww-beginning-of-field)))
|
|
|
|
(defun eww-end-of-text ()
|
|
"Move to the end of the text in the input field."
|
|
(interactive nil eww-mode)
|
|
(goto-char (eww-end-of-field))
|
|
(let ((start (eww-beginning-of-field)))
|
|
(while (and (equal (following-char) ? )
|
|
(> (point) start))
|
|
(forward-char -1))
|
|
(when (> (point) start)
|
|
(forward-char 1))))
|
|
|
|
(defun eww-beginning-of-field ()
|
|
(cond
|
|
((bobp)
|
|
(point))
|
|
((not (eq (get-text-property (point) 'eww-form)
|
|
(get-text-property (1- (point)) 'eww-form)))
|
|
(point))
|
|
(t
|
|
(previous-single-property-change
|
|
(point) 'eww-form nil (point-min)))))
|
|
|
|
(defun eww-end-of-field ()
|
|
(1- (next-single-property-change
|
|
(point) 'eww-form nil (point-max))))
|
|
|
|
(defun eww-tag-form (dom)
|
|
(let ((eww-form (list (cons :method (dom-attr dom 'method))
|
|
(cons :action (dom-attr dom 'action))))
|
|
(start (point)))
|
|
(insert "\n")
|
|
(shr-ensure-paragraph)
|
|
(shr-generic dom)
|
|
(unless (bolp)
|
|
(insert "\n"))
|
|
(insert "\n")
|
|
(when (> (point) start)
|
|
(put-text-property start (1+ start)
|
|
'eww-form eww-form))))
|
|
|
|
(defun eww-form-submit (dom)
|
|
(let ((start (point))
|
|
(value (dom-attr dom 'value)))
|
|
(if (null value)
|
|
(shr-generic dom)
|
|
(insert value))
|
|
;; If the contents of the <button>...</button> turns out to be
|
|
;; empty, or the value was blank, default to this:
|
|
(when (= (point) start)
|
|
(insert "Submit"))
|
|
(add-face-text-property start (point) 'eww-form-submit)
|
|
(put-text-property start (point) 'eww-form
|
|
(list :eww-form eww-form
|
|
:value value
|
|
:type "submit"
|
|
:name (dom-attr dom 'name)))
|
|
(put-text-property start (point) 'keymap eww-submit-map)
|
|
;; Pretend to touch-screen.el that this is a button.
|
|
(put-text-property start (point) 'button t)
|
|
(insert " ")))
|
|
|
|
(defun eww-form-checkbox (dom)
|
|
(let ((start (point)))
|
|
(if (dom-attr dom 'checked)
|
|
(insert eww-form-checkbox-selected-symbol)
|
|
(insert eww-form-checkbox-symbol))
|
|
(add-face-text-property start (point) 'eww-form-checkbox)
|
|
(put-text-property start (point) 'eww-form
|
|
(list :eww-form eww-form
|
|
:value (dom-attr dom 'value)
|
|
:type (downcase (dom-attr dom 'type))
|
|
:checked (dom-attr dom 'checked)
|
|
:name (dom-attr dom 'name)))
|
|
(put-text-property start (point) 'keymap eww-checkbox-map)
|
|
;; Pretend to touch-screen.el that this is a button.
|
|
(put-text-property start (point) 'button t)
|
|
(insert " ")))
|
|
|
|
(defun eww-form-file (dom)
|
|
(let ((start (point))
|
|
(value (dom-attr dom 'value)))
|
|
(setq value
|
|
(if (zerop (length value))
|
|
" No file selected"
|
|
value))
|
|
(insert "Browse")
|
|
(add-face-text-property start (point) 'eww-form-file)
|
|
(insert value)
|
|
(put-text-property start (point) 'eww-form
|
|
(list :eww-form eww-form
|
|
:value (dom-attr dom 'value)
|
|
:type (downcase (dom-attr dom 'type))
|
|
:name (dom-attr dom 'name)))
|
|
(put-text-property start (point) 'keymap eww-submit-file)
|
|
;; Pretend to touch-screen.el that this is a button.
|
|
(put-text-property start (point) 'button t)
|
|
(insert " ")))
|
|
|
|
(defun eww-select-file (&optional event)
|
|
"Change the value of the upload file menu under point.
|
|
EVENT, if non-nil, is the mouse event that preceded this command.
|
|
Interactively, EVENT is the value of `last-nonmenu-event'."
|
|
(interactive (list last-nonmenu-event) eww-mode)
|
|
(when (and event (setq event (event-start event)))
|
|
(goto-char (posn-point event)))
|
|
(let* ((input (get-text-property (point) 'eww-form)))
|
|
(let ((filename
|
|
(let ((insert-default-directory t))
|
|
(read-file-name "filename: "))))
|
|
(eww-update-field filename (length "Browse"))
|
|
(plist-put input :filename filename))))
|
|
|
|
(defun eww-form-text (dom)
|
|
(let ((start (point))
|
|
(type (downcase (or (dom-attr dom 'type) "text")))
|
|
(value (or (dom-attr dom 'value) ""))
|
|
(width (string-to-number (or (dom-attr dom 'size) "40")))
|
|
(readonly-property (if (or (dom-attr dom 'disabled)
|
|
(dom-attr dom 'readonly))
|
|
'read-only
|
|
'inhibit-read-only))
|
|
form)
|
|
(setq form (list :eww-form eww-form
|
|
:value value
|
|
:type type
|
|
:name (dom-attr dom 'name)))
|
|
(insert value)
|
|
(when (< (length value) width)
|
|
(insert (make-string (- width (length value)) ? )))
|
|
(put-text-property start (point) 'face 'eww-form-text)
|
|
(put-text-property start (point) 'inhibit-read-only t)
|
|
(put-text-property start (point) 'local-map eww-text-map)
|
|
(put-text-property start (point) readonly-property t)
|
|
(put-text-property start (point) 'eww-form form)
|
|
(put-text-property start (point) 'field form)
|
|
(put-text-property start (point) 'front-sticky t)
|
|
(insert " ")))
|
|
|
|
(defconst eww-text-input-types '("text" "password" "textarea"
|
|
"color" "date" "datetime" "datetime-local"
|
|
"email" "month" "number" "search" "tel"
|
|
"time" "url" "week")
|
|
"List of input types which represent a text input.
|
|
See URL `https://developer.mozilla.org/en-US/docs/Web/HTML/Element/Input'.")
|
|
|
|
(defun eww-process-text-input (beg end replace-length)
|
|
(when-let* ((pos (field-beginning (point))))
|
|
(let* ((form (get-text-property pos 'eww-form))
|
|
(properties (text-properties-at pos))
|
|
(buffer-undo-list t)
|
|
(inhibit-read-only t)
|
|
(length (- end beg replace-length))
|
|
(type (plist-get form :type)))
|
|
(when (and form
|
|
(member type eww-text-input-types))
|
|
(cond
|
|
((> length 0)
|
|
;; Delete some space at the end.
|
|
(save-excursion
|
|
(goto-char
|
|
(if (equal type "textarea")
|
|
(1- (line-end-position))
|
|
(eww-end-of-field)))
|
|
(while (and (> length 0)
|
|
(eq (char-after (1- (point))) ? ))
|
|
(delete-region (1- (point)) (point))
|
|
(cl-decf length))))
|
|
((< length 0)
|
|
;; Add padding.
|
|
(save-excursion
|
|
(goto-char end)
|
|
(goto-char
|
|
(if (equal type "textarea")
|
|
(1- (line-end-position))
|
|
(1+ (eww-end-of-field))))
|
|
(let ((start (point)))
|
|
(insert (make-string (abs length) ? ))
|
|
(set-text-properties start (point) properties))
|
|
(goto-char (1- end)))))
|
|
(set-text-properties (cdr (assq :start form))
|
|
(cdr (assq :end form))
|
|
properties)
|
|
(let ((value (buffer-substring-no-properties
|
|
(eww-beginning-of-field)
|
|
(eww-end-of-field))))
|
|
(when (string-match " +\\'" value)
|
|
(setq value (substring value 0 (match-beginning 0))))
|
|
(plist-put form :value value)
|
|
(plist-put form :type type)
|
|
(when (equal type "password")
|
|
;; Display passwords as asterisks.
|
|
(let ((start (eww-beginning-of-field)))
|
|
(put-text-property
|
|
start (+ start (length value))
|
|
'display (make-string (length value) ?*)))))))))
|
|
|
|
(defun eww-tag-textarea (dom)
|
|
(let ((start (point))
|
|
(value (or (dom-text dom) ""))
|
|
(lines (string-to-number (or (dom-attr dom 'rows) "10")))
|
|
(width (string-to-number (or (dom-attr dom 'cols) "10")))
|
|
end form)
|
|
(shr-ensure-newline)
|
|
(insert value)
|
|
(shr-ensure-newline)
|
|
(when (< (count-lines start (point)) lines)
|
|
(dotimes (_ (- lines (count-lines start (point))))
|
|
(insert "\n")))
|
|
(setq end (point-marker))
|
|
(goto-char start)
|
|
(while (< (point) end)
|
|
(end-of-line)
|
|
(let ((pad (- width (- (point) (line-beginning-position)))))
|
|
(when (> pad 0)
|
|
(insert (make-string pad ? ))))
|
|
(add-face-text-property (line-beginning-position)
|
|
(point) 'eww-form-textarea)
|
|
(put-text-property (line-beginning-position) (point) 'inhibit-read-only t)
|
|
(put-text-property (line-beginning-position) (point)
|
|
'local-map eww-textarea-map)
|
|
(forward-line 1))
|
|
(setq form (list :eww-form eww-form
|
|
:value value
|
|
:type "textarea"
|
|
:name (dom-attr dom 'name)))
|
|
(put-text-property start (point) 'eww-form form)
|
|
(put-text-property start (point) 'front-sticky t)
|
|
(put-text-property start (point) 'field form)
|
|
(put-text-property start (1+ start) 'shr-tab-stop t)))
|
|
|
|
(defun eww-tag-input (dom)
|
|
(let ((type (downcase (or (dom-attr dom 'type) "text")))
|
|
(start (point)))
|
|
(cond
|
|
((or (equal type "checkbox")
|
|
(equal type "radio"))
|
|
(eww-form-checkbox dom))
|
|
((equal type "file")
|
|
(eww-form-file dom))
|
|
((equal type "submit")
|
|
(eww-form-submit dom))
|
|
((equal type "hidden")
|
|
(let ((form eww-form)
|
|
(name (dom-attr dom 'name)))
|
|
;; Don't add <input type=hidden> elements repeatedly.
|
|
(while (and form
|
|
(or (not (consp (car form)))
|
|
(not (eq (caar form) 'hidden))
|
|
(not (equal (plist-get (cdr (car form)) :name)
|
|
name))))
|
|
(setq form (cdr form)))
|
|
(unless form
|
|
(nconc eww-form (list
|
|
(list 'hidden
|
|
:name name
|
|
:value (or (dom-attr dom 'value) "")))))))
|
|
(t
|
|
(eww-form-text dom)))
|
|
(unless (= start (point))
|
|
(put-text-property start (1+ start) 'help-echo "Input field")
|
|
;; Mark this as an element we can TAB to.
|
|
(put-text-property start (1+ start) 'shr-tab-stop t))))
|
|
|
|
(defun eww-tag-select (dom)
|
|
(shr-ensure-paragraph)
|
|
(let ((menu (list :name (dom-attr dom 'name)
|
|
:eww-form eww-form))
|
|
(options nil)
|
|
(start (point))
|
|
(max 0))
|
|
(dolist (elem (dom-by-tag dom 'option))
|
|
(when (dom-attr elem 'selected)
|
|
(nconc menu (list :value (dom-attr elem 'value))))
|
|
(let ((display (dom-text elem)))
|
|
(setq max (max max (length display)))
|
|
(push (list 'item
|
|
:value (dom-attr elem 'value)
|
|
:display display)
|
|
options)))
|
|
(when options
|
|
(setq options (nreverse options))
|
|
;; If we have no selected values, default to the first value.
|
|
(unless (plist-get menu :value)
|
|
(nconc menu (list :value (nth 2 (car options)))))
|
|
(nconc menu options)
|
|
(let ((selected (eww-select-display menu)))
|
|
(insert selected
|
|
(make-string (- max (length selected)) ? )))
|
|
(put-text-property start (point) 'eww-form menu)
|
|
(add-face-text-property start (point) 'eww-form-select)
|
|
(put-text-property start (point) 'keymap eww-select-map)
|
|
;; Pretend to touch-screen.el that this is a button.
|
|
(put-text-property start (point) 'button t)
|
|
(unless (= start (point))
|
|
(put-text-property start (1+ start) 'help-echo "select field")
|
|
(put-text-property start (1+ start) 'shr-tab-stop t))
|
|
(shr-ensure-paragraph))))
|
|
|
|
(defun eww-select-display (select)
|
|
(let ((value (plist-get select :value))
|
|
display)
|
|
(dolist (elem select)
|
|
(when (and (consp elem)
|
|
(eq (car elem) 'item)
|
|
(equal value (plist-get (cdr elem) :value)))
|
|
(setq display (plist-get (cdr elem) :display))))
|
|
display))
|
|
|
|
(defun eww--form-items (form)
|
|
(cl-loop for elem in form
|
|
when (and (consp elem)
|
|
(eq (car elem) 'item))
|
|
collect (cdr elem)))
|
|
|
|
(defun eww-change-select (event)
|
|
"Change the value of the select drop-down menu under point."
|
|
(interactive
|
|
(list last-nonmenu-event)
|
|
eww-mode)
|
|
(mouse-set-point event)
|
|
(let ((input (get-text-property (point) 'eww-form)))
|
|
(popup-menu
|
|
(cons
|
|
"Change Value"
|
|
(mapcar
|
|
(lambda (elem)
|
|
(vector (plist-get elem :display)
|
|
(lambda ()
|
|
(interactive)
|
|
(plist-put input :value (plist-get elem :value))
|
|
(goto-char (eww-update-field (plist-get elem :display))))
|
|
t))
|
|
(eww--form-items input)))
|
|
event)))
|
|
|
|
(defun eww-update-field (string &optional offset)
|
|
(unless offset
|
|
(setq offset 0))
|
|
(let ((properties (text-properties-at (point)))
|
|
(start (+ (eww-beginning-of-field) offset))
|
|
(current-end (1+ (eww-end-of-field)))
|
|
(new-end (+ (eww-beginning-of-field) (length string)))
|
|
(inhibit-read-only t))
|
|
(delete-region start current-end)
|
|
(forward-char offset)
|
|
(insert string
|
|
(make-string (- (- (+ new-end offset) start) (length string)) ? ))
|
|
(when (= 0 offset)
|
|
(set-text-properties start new-end properties))
|
|
start))
|
|
|
|
(defun eww-toggle-checkbox (&optional event)
|
|
"Toggle the value of the checkbox under point.
|
|
EVENT, if non-nil, is the mouse event that preceded this command.
|
|
Interactively, EVENT is the value of `last-nonmenu-event'."
|
|
(interactive (list last-nonmenu-event) eww-mode)
|
|
(when (and event (setq event (event-start event)))
|
|
(goto-char (posn-point event)))
|
|
(let* ((input (get-text-property (point) 'eww-form))
|
|
(type (plist-get input :type)))
|
|
(if (equal type "checkbox")
|
|
(goto-char
|
|
(1+
|
|
(if (plist-get input :checked)
|
|
(progn
|
|
(plist-put input :checked nil)
|
|
(eww-update-field eww-form-checkbox-symbol))
|
|
(plist-put input :checked t)
|
|
(eww-update-field eww-form-checkbox-selected-symbol))))
|
|
;; Radio button. Switch all other buttons off.
|
|
(let ((name (plist-get input :name)))
|
|
(save-excursion
|
|
(dolist (elem (eww-inputs (plist-get input :eww-form)))
|
|
(when (equal (plist-get (cdr elem) :name) name)
|
|
(goto-char (car elem))
|
|
(if (not (eq (cdr elem) input))
|
|
(progn
|
|
(plist-put (cdr elem) :checked nil)
|
|
(eww-update-field eww-form-checkbox-symbol))
|
|
(plist-put (cdr elem) :checked t)
|
|
(eww-update-field eww-form-checkbox-selected-symbol)))))
|
|
(forward-char 1)))))
|
|
|
|
(defun eww-inputs (form)
|
|
(let ((start (point-min))
|
|
(inputs nil))
|
|
(while (and start
|
|
(< start (point-max)))
|
|
(when (or (get-text-property start 'eww-form)
|
|
(setq start (next-single-property-change start 'eww-form)))
|
|
(when (eq (plist-get (get-text-property start 'eww-form) :eww-form)
|
|
form)
|
|
(push (cons start (get-text-property start 'eww-form))
|
|
inputs))
|
|
(setq start (next-single-property-change start 'eww-form))))
|
|
(nreverse inputs)))
|
|
|
|
(defun eww-size-text-inputs ()
|
|
(let ((start (point-min)))
|
|
(while (and start
|
|
(< start (point-max)))
|
|
(when (or (get-text-property start 'eww-form)
|
|
(setq start (next-single-property-change start 'eww-form)))
|
|
(let ((props (get-text-property start 'eww-form)))
|
|
(nconc props (list (cons :start start)))
|
|
(setq start (next-single-property-change
|
|
start 'eww-form nil (point-max)))
|
|
(nconc props (list (cons :end start))))))))
|
|
|
|
(defun eww-input-value (input)
|
|
(let ((type (plist-get input :type))
|
|
(value (plist-get input :value)))
|
|
(cond
|
|
((equal type "textarea")
|
|
(with-temp-buffer
|
|
(insert value)
|
|
(goto-char (point-min))
|
|
(while (re-search-forward "^ +\n\\| +$" nil t)
|
|
(replace-match "" t t))
|
|
(buffer-string)))
|
|
(t
|
|
(if (string-match " +\\'" value)
|
|
(substring value 0 (match-beginning 0))
|
|
value)))))
|
|
|
|
(defun eww-submit (&optional event)
|
|
"Submit the form under point or EVENT.
|
|
EVENT, if non-nil, is the mouse event that preceded this command.
|
|
Interactively, EVENT is the value of `last-nonmenu-event'."
|
|
(interactive (list last-nonmenu-event) eww-mode)
|
|
(when (and event (setq event (event-start event)))
|
|
(goto-char (posn-point event)))
|
|
(let* ((this-input (get-text-property (point) 'eww-form))
|
|
(form (plist-get this-input :eww-form))
|
|
values next-submit)
|
|
(dolist (elem (sort (eww-inputs form)
|
|
(lambda (o1 o2)
|
|
(< (car o1) (car o2)))))
|
|
(let* ((input (cdr elem))
|
|
(input-start (car elem))
|
|
(name (plist-get input :name)))
|
|
(when name
|
|
(cond
|
|
((member (plist-get input :type) '("checkbox" "radio"))
|
|
(when (plist-get input :checked)
|
|
(push (cons name (or (plist-get input :value) "on"))
|
|
values)))
|
|
((equal (plist-get input :type) "file")
|
|
(when-let* ((file (plist-get input :filename)))
|
|
(push (list "file"
|
|
(cons "filedata"
|
|
(with-temp-buffer
|
|
(insert-file-contents file)
|
|
(buffer-string)))
|
|
(cons "name" name)
|
|
;; RFC 2183 declares that recipients should
|
|
;; only respect the basename of the filename
|
|
;; parameter, and the leading directories
|
|
;; might divulge private information, so we
|
|
;; only send the basename in our request.
|
|
(cons "filename" (file-name-nondirectory file)))
|
|
values)))
|
|
((equal (plist-get input :type) "submit")
|
|
;; We want the values from buttons if we hit a button if
|
|
;; we hit enter on it, or if it's the first button after
|
|
;; the field we did hit return on.
|
|
(when (or (eq input this-input)
|
|
(and (not (eq input this-input))
|
|
(null next-submit)
|
|
(> input-start (point))))
|
|
(setq next-submit t)
|
|
(push (cons name (plist-get input :value))
|
|
values)))
|
|
(t
|
|
(push (cons name (eww-input-value input))
|
|
values))))))
|
|
(dolist (elem form)
|
|
(when (and (consp elem)
|
|
(eq (car elem) 'hidden))
|
|
(push (cons (plist-get (cdr elem) :name)
|
|
(or (plist-get (cdr elem) :value) ""))
|
|
values)))
|
|
(if (and (stringp (cdr (assq :method form)))
|
|
(equal (downcase (cdr (assq :method form))) "post"))
|
|
(let ((mtype))
|
|
(dolist (x values mtype)
|
|
(if (equal (car x) "file")
|
|
(progn
|
|
(setq mtype "multipart/form-data"))))
|
|
(cond ((equal mtype "multipart/form-data")
|
|
(let ((boundary (mml-compute-boundary '())))
|
|
(let ((url-request-method "POST")
|
|
(url-request-extra-headers
|
|
(list (cons "Content-Type"
|
|
(concat "multipart/form-data; boundary="
|
|
boundary))))
|
|
(url-request-data
|
|
(mm-url-encode-multipart-form-data values boundary)))
|
|
(eww-browse-url (shr-expand-url
|
|
(cdr (assq :action form))
|
|
(plist-get eww-data :url))))))
|
|
(t
|
|
(let ((url-request-method "POST")
|
|
(url-request-extra-headers
|
|
'(("Content-Type" .
|
|
"application/x-www-form-urlencoded")))
|
|
(url-request-data
|
|
(mm-url-encode-www-form-urlencoded values)))
|
|
(eww-browse-url (shr-expand-url
|
|
(cdr (assq :action form))
|
|
(plist-get eww-data :url)))))))
|
|
(eww-browse-url
|
|
(concat
|
|
(if (cdr (assq :action form))
|
|
(shr-expand-url (cdr (assq :action form)) (plist-get eww-data :url))
|
|
(plist-get eww-data :url))
|
|
"?"
|
|
(mm-url-encode-www-form-urlencoded values))))))
|
|
|
|
(defun eww-browse-with-external-browser (&optional url)
|
|
"Browse the current URL with an external browser.
|
|
The browser to used is specified by the
|
|
`browse-url-secondary-browser-function' variable."
|
|
(interactive nil eww-mode)
|
|
(funcall browse-url-secondary-browser-function
|
|
(or url (plist-get eww-data :url))))
|
|
|
|
(defun eww-remove-tracking (url)
|
|
"Remove the commong utm_ tracking cookies from URLs."
|
|
(replace-regexp-in-string ".utm_.*" "" url))
|
|
|
|
(defun eww--transform-url (url)
|
|
"Apply `eww-url-transformers'."
|
|
(when url
|
|
(dolist (func eww-url-transformers)
|
|
(setq url (funcall func url)))
|
|
url))
|
|
|
|
(defun eww-follow-link (&optional external mouse-event)
|
|
"Browse the URL under point.
|
|
If EXTERNAL is single prefix, browse the URL using
|
|
`browse-url-secondary-browser-function'.
|
|
|
|
If EXTERNAL is double prefix, browse in new buffer."
|
|
(interactive
|
|
(list current-prefix-arg last-nonmenu-event)
|
|
eww-mode)
|
|
(mouse-set-point mouse-event)
|
|
(let* ((orig-url (get-text-property (point) 'shr-url))
|
|
(url (eww--transform-url orig-url))
|
|
target)
|
|
(cond
|
|
((not url)
|
|
(message "No link under point"))
|
|
((string-match-p eww-use-browse-url url)
|
|
;; This respects the user options `browse-url-handlers'
|
|
;; and `browse-url-mailto-function'.
|
|
(browse-url url))
|
|
((and (consp external) (<= (car external) 4))
|
|
(funcall browse-url-secondary-browser-function url)
|
|
(shr--blink-link))
|
|
;; This is a #target url in the same page as the current one.
|
|
((and (setq target (url-target (url-generic-parse-url url)))
|
|
(eww-same-page-p url (plist-get eww-data :url)))
|
|
(let ((point (point)))
|
|
(eww-save-history)
|
|
(eww--before-browse)
|
|
(plist-put eww-data :url url)
|
|
(goto-char (point-min))
|
|
(if-let* ((match (text-property-search-forward 'shr-target-id target #'member)))
|
|
(goto-char (prop-match-beginning match))
|
|
(goto-char (if (equal target "top")
|
|
(point-min)
|
|
point)))))
|
|
(t
|
|
(eww-browse-url orig-url external)))))
|
|
|
|
(defun eww-same-page-p (url1 url2)
|
|
"Return non-nil if URL1 and URL2 represent the same page.
|
|
Differences in #targets are ignored."
|
|
(let ((obj1 (url-generic-parse-url url1))
|
|
(obj2 (url-generic-parse-url url2)))
|
|
(setf (url-target obj1) nil)
|
|
(setf (url-target obj2) nil)
|
|
(equal (url-recreate-url obj1) (url-recreate-url obj2))))
|
|
|
|
(defun eww-copy-page-url ()
|
|
"Copy the URL of the current page into the kill ring."
|
|
(interactive nil eww-mode)
|
|
(message "%s" (plist-get eww-data :url))
|
|
(kill-new (plist-get eww-data :url)))
|
|
|
|
(defun eww-download ()
|
|
"Download URL to `eww-download-directory'.
|
|
Use link at point if there is one, else the current page's URL."
|
|
(interactive nil eww-mode)
|
|
(let ((dir (if (stringp eww-download-directory)
|
|
eww-download-directory
|
|
(funcall eww-download-directory))))
|
|
(access-file dir "Download failed")
|
|
(let ((url (or (get-text-property (point) 'shr-url)
|
|
(eww-current-url))))
|
|
(if (not url)
|
|
(message "No URL under point")
|
|
(url-retrieve url #'eww-download-callback (list url dir))))))
|
|
|
|
(defun eww-download-callback (status url dir)
|
|
(unless (plist-get status :error)
|
|
(let* ((obj (url-generic-parse-url url))
|
|
(path (directory-file-name (car (url-path-and-query obj))))
|
|
(file (eww-make-unique-file-name
|
|
(eww-decode-url-file-name (file-name-nondirectory path))
|
|
dir)))
|
|
(goto-char (point-min))
|
|
(re-search-forward "\r?\n\r?\n")
|
|
(let ((coding-system-for-write 'no-conversion))
|
|
(write-region (point) (point-max) file))
|
|
(message "Saved %s" file))))
|
|
|
|
(defun eww-decode-url-file-name (string)
|
|
(let* ((binary (url-unhex-string string))
|
|
(decoded
|
|
(decode-coding-string
|
|
binary
|
|
;; Possibly set by `universal-coding-system-argument'.
|
|
(or coding-system-for-read
|
|
;; RFC 3986 says that %AB stuff is utf-8.
|
|
(if (equal (decode-coding-string binary 'utf-8)
|
|
'(unicode))
|
|
'utf-8
|
|
;; But perhaps not.
|
|
(car (detect-coding-string binary))))))
|
|
(encodes (find-coding-systems-string decoded)))
|
|
(if (or (equal encodes '(undecided))
|
|
(memq (coding-system-base (or file-name-coding-system
|
|
default-file-name-coding-system))
|
|
encodes))
|
|
decoded
|
|
;; If we can't encode the decoded file name (due to language
|
|
;; environment settings), then we return the original, hexified
|
|
;; string.
|
|
string)))
|
|
|
|
(defun eww-make-unique-file-name (file directory)
|
|
(cond
|
|
((zerop (length file))
|
|
(setq file "!"))
|
|
((string-match "\\`[.]" file)
|
|
(setq file (concat "!" file))))
|
|
(let ((count 1)
|
|
(stem file)
|
|
(suffix ""))
|
|
(when (string-match "\\`\\(.*\\)\\([.][^.]+\\)" file)
|
|
(setq stem (match-string 1 file)
|
|
suffix (match-string 2 file)))
|
|
(while (file-exists-p (expand-file-name file directory))
|
|
(setq file (format "%s(%d)%s" stem count suffix))
|
|
(setq count (1+ count)))
|
|
(expand-file-name file directory)))
|
|
|
|
(defun eww-set-character-encoding (charset)
|
|
"Set character encoding to CHARSET.
|
|
If CHARSET is nil then use UTF-8."
|
|
(interactive "zUse character set (default `utf-8'): " eww-mode)
|
|
(if (null charset)
|
|
(eww-reload nil 'utf-8)
|
|
(eww-reload nil charset)))
|
|
|
|
(defun eww-switch-to-buffer ()
|
|
"Prompt for an EWW buffer to display in the selected window."
|
|
(interactive nil eww-mode)
|
|
(let ((completion-extra-properties
|
|
`(:annotation-function
|
|
,(lambda (buf)
|
|
(with-current-buffer buf
|
|
(format " %s" (eww-current-url))))))
|
|
(curbuf (current-buffer)))
|
|
(pop-to-buffer-same-window
|
|
(read-buffer "Switch to EWW buffer: "
|
|
(cl-loop for buf in (nreverse (buffer-list))
|
|
if (with-current-buffer buf (derived-mode-p 'eww-mode))
|
|
return buf)
|
|
t
|
|
(lambda (bufn)
|
|
(setq bufn (if (consp bufn) (cdr bufn) (get-buffer bufn)))
|
|
(and (with-current-buffer bufn
|
|
(derived-mode-p 'eww-mode))
|
|
(not (eq bufn curbuf))))))))
|
|
|
|
(defun eww-toggle-fonts ()
|
|
"Toggle whether to use monospaced or font-enabled layouts."
|
|
(interactive nil eww-mode)
|
|
(setq shr-use-fonts (not shr-use-fonts))
|
|
(eww-reload)
|
|
(message "Proportional fonts are now %s"
|
|
(if shr-use-fonts "on" "off")))
|
|
|
|
(defun eww-toggle-colors ()
|
|
"Toggle whether to use HTML-specified colors or not."
|
|
(interactive nil eww-mode)
|
|
(message "Colors are now %s"
|
|
(if (setq shr-use-colors (not shr-use-colors))
|
|
"on"
|
|
"off"))
|
|
(eww-reload))
|
|
|
|
(defun eww-toggle-images ()
|
|
"Toggle whether or not to display images."
|
|
(interactive nil eww-mode)
|
|
(setq shr-inhibit-images (not shr-inhibit-images))
|
|
(eww-reload)
|
|
(message "Images are now %s"
|
|
(if shr-inhibit-images "off" "on")))
|
|
|
|
;;; Bookmarks code
|
|
|
|
(defvar eww-bookmarks nil)
|
|
|
|
(defun eww-add-bookmark ()
|
|
"Bookmark the current page."
|
|
(interactive nil eww-mode)
|
|
(eww-read-bookmarks)
|
|
(dolist (bookmark eww-bookmarks)
|
|
(when (equal (plist-get eww-data :url) (plist-get bookmark :url))
|
|
(user-error "Already bookmarked")))
|
|
(when (y-or-n-p "Bookmark this page?")
|
|
(let ((title (replace-regexp-in-string "[\n\t\r]" " "
|
|
(plist-get eww-data :title))))
|
|
(setq title (replace-regexp-in-string "\\` +\\| +\\'" "" title))
|
|
(push (list :url (plist-get eww-data :url)
|
|
:title title
|
|
:time (current-time-string))
|
|
eww-bookmarks))
|
|
(eww-write-bookmarks)
|
|
(message "Bookmarked %s (%s)" (plist-get eww-data :url)
|
|
(plist-get eww-data :title))))
|
|
|
|
(defun eww-write-bookmarks ()
|
|
(with-temp-file (expand-file-name "eww-bookmarks" eww-bookmarks-directory)
|
|
(insert ";; Auto-generated file; don't edit -*- mode: lisp-data -*-\n")
|
|
(let ((print-length nil)
|
|
(print-level nil))
|
|
(pp eww-bookmarks (current-buffer)))))
|
|
|
|
(defun eww-read-bookmarks (&optional error-out)
|
|
"Read bookmarks from `eww-bookmarks'.
|
|
If ERROR-OUT, signal user-error if there are no bookmarks."
|
|
(let ((file (expand-file-name "eww-bookmarks" eww-bookmarks-directory)))
|
|
(setq eww-bookmarks
|
|
(unless (zerop (or (file-attribute-size (file-attributes file)) 0))
|
|
(with-temp-buffer
|
|
(insert-file-contents file)
|
|
(read (current-buffer)))))
|
|
(when (and error-out (not eww-bookmarks))
|
|
(user-error "No bookmarks are defined"))))
|
|
|
|
;;;###autoload
|
|
(defun eww-list-bookmarks ()
|
|
"Display the bookmarks."
|
|
(interactive)
|
|
(eww-read-bookmarks t)
|
|
(pop-to-buffer "*eww bookmarks*")
|
|
(eww-bookmark-prepare))
|
|
|
|
(defun eww-bookmark-prepare ()
|
|
(set-buffer (get-buffer-create "*eww bookmarks*"))
|
|
(eww-bookmark-mode)
|
|
(let* ((width (/ (window-width) 2))
|
|
(format (format "%%-%ds %%s" width))
|
|
(inhibit-read-only t)
|
|
start title)
|
|
(erase-buffer)
|
|
(setq header-line-format (concat " " (format format "Title" "URL")))
|
|
(dolist (bookmark eww-bookmarks)
|
|
(setq start (point)
|
|
title (plist-get bookmark :title))
|
|
(when (> (length title) width)
|
|
(setq title (truncate-string-to-width title width)))
|
|
(insert (format format title (plist-get bookmark :url)) "\n")
|
|
(put-text-property start (1+ start) 'eww-bookmark bookmark))
|
|
(goto-char (point-min))))
|
|
|
|
(defvar eww-bookmark-kill-ring nil)
|
|
|
|
(defun eww-bookmark-kill ()
|
|
"Kill the current bookmark."
|
|
(interactive nil eww-bookmark-mode)
|
|
(let* ((start (line-beginning-position))
|
|
(bookmark (get-text-property start 'eww-bookmark))
|
|
(inhibit-read-only t))
|
|
(unless bookmark
|
|
(user-error "No bookmark on the current line"))
|
|
(forward-line 1)
|
|
(push (buffer-substring start (point)) eww-bookmark-kill-ring)
|
|
(delete-region start (point))
|
|
(setq eww-bookmarks (delq bookmark eww-bookmarks))
|
|
(eww-write-bookmarks)))
|
|
|
|
(defun eww-bookmark-yank ()
|
|
"Yank a previously killed bookmark to the current line."
|
|
(interactive nil eww-bookmark-mode)
|
|
(unless eww-bookmark-kill-ring
|
|
(user-error "No previously killed bookmark"))
|
|
(beginning-of-line)
|
|
(let ((inhibit-read-only t)
|
|
(start (point))
|
|
bookmark)
|
|
(insert (pop eww-bookmark-kill-ring))
|
|
(setq bookmark (get-text-property start 'eww-bookmark))
|
|
(if (= start (point-min))
|
|
(push bookmark eww-bookmarks)
|
|
(let ((line (count-lines start (point))))
|
|
(setcdr (nthcdr (1- line) eww-bookmarks)
|
|
(cons bookmark (nthcdr line eww-bookmarks)))))
|
|
(eww-write-bookmarks)))
|
|
|
|
(defun eww-bookmark-browse ()
|
|
"Browse the bookmark under point in eww."
|
|
(interactive nil eww-bookmark-mode)
|
|
(let ((bookmark (get-text-property (line-beginning-position) 'eww-bookmark)))
|
|
(unless bookmark
|
|
(user-error "No bookmark on the current line"))
|
|
(quit-window)
|
|
(eww-browse-url (plist-get bookmark :url))))
|
|
|
|
(defun eww-next-bookmark ()
|
|
"Go to the next bookmark in the list."
|
|
(interactive nil eww-bookmark-mode)
|
|
(let ((first nil)
|
|
bookmark)
|
|
(unless (get-buffer "*eww bookmarks*")
|
|
(setq first t)
|
|
(eww-read-bookmarks t)
|
|
(eww-bookmark-prepare))
|
|
(with-current-buffer "*eww bookmarks*"
|
|
(when (and (not first)
|
|
(not (eobp)))
|
|
(forward-line 1))
|
|
(setq bookmark (get-text-property (line-beginning-position)
|
|
'eww-bookmark))
|
|
(unless bookmark
|
|
(user-error "No next bookmark")))
|
|
(eww-browse-url (plist-get bookmark :url))))
|
|
|
|
(defun eww-previous-bookmark ()
|
|
"Go to the previous bookmark in the list."
|
|
(interactive nil eww-bookmark-mode)
|
|
(let ((first nil)
|
|
bookmark)
|
|
(unless (get-buffer "*eww bookmarks*")
|
|
(setq first t)
|
|
(eww-read-bookmarks t)
|
|
(eww-bookmark-prepare))
|
|
(with-current-buffer "*eww bookmarks*"
|
|
(if first
|
|
(goto-char (point-max))
|
|
(beginning-of-line))
|
|
;; On the final line.
|
|
(when (eolp)
|
|
(forward-line -1))
|
|
(if (bobp)
|
|
(user-error "No previous bookmark")
|
|
(forward-line -1))
|
|
(setq bookmark (get-text-property (line-beginning-position)
|
|
'eww-bookmark)))
|
|
(eww-browse-url (plist-get bookmark :url))))
|
|
|
|
(defun eww-bookmark-urls ()
|
|
"Get the URLs from the current list of bookmarks."
|
|
(interactive nil eww-boomark-mode)
|
|
(eww-read-bookmarks)
|
|
(mapcar (lambda (x) (plist-get x :url)) eww-bookmarks))
|
|
|
|
(defvar-keymap eww-bookmark-mode-map
|
|
"C-k" #'eww-bookmark-kill
|
|
"C-y" #'eww-bookmark-yank
|
|
"RET" #'eww-bookmark-browse
|
|
:menu '("Eww Bookmark"
|
|
["Exit" quit-window t]
|
|
["Browse" eww-bookmark-browse
|
|
:active (get-text-property (line-beginning-position) 'eww-bookmark)]
|
|
["Kill" eww-bookmark-kill
|
|
:active (get-text-property (line-beginning-position) 'eww-bookmark)]
|
|
["Yank" eww-bookmark-yank
|
|
:active eww-bookmark-kill-ring]))
|
|
|
|
(define-derived-mode eww-bookmark-mode special-mode "eww bookmarks"
|
|
"Mode for listing bookmarks.
|
|
|
|
\\{eww-bookmark-mode-map}"
|
|
:interactive nil
|
|
(buffer-disable-undo)
|
|
(setq truncate-lines t))
|
|
|
|
;;; History code
|
|
|
|
(defun eww-save-history ()
|
|
"Save the current page's data to the history.
|
|
If the current page is a historical one loaded from
|
|
`eww-history' (e.g. by calling `eww-back-url'), this will update the
|
|
page's entry in `eww-history' and return nil. Otherwise, add a new
|
|
entry to `eww-history' and return t."
|
|
(plist-put eww-data :point (point))
|
|
(plist-put eww-data :text (buffer-string))
|
|
(if (zerop eww-history-position)
|
|
(let ((history-delete-duplicates nil))
|
|
(add-to-history 'eww-history eww-data eww-history-limit t)
|
|
(setq eww-history-position 1)
|
|
t)
|
|
(setf (elt eww-history (1- eww-history-position)) eww-data)
|
|
nil))
|
|
|
|
(defun eww-delete-future-history ()
|
|
"Remove any entries in `eww-history' after the currently-shown one.
|
|
This is useful for `eww-before-browse-history-function' to make EWW's
|
|
navigation to a new page from a historical one work like other web
|
|
browsers: it will delete any \"future\" history elements before adding
|
|
the new page to the end of the history.
|
|
|
|
For example, if `eww-history' looks like this (going from newest to
|
|
oldest, with \"*\" marking the current page):
|
|
|
|
E D C* B A
|
|
|
|
then calling this function updates `eww-history' to:
|
|
|
|
C* B A"
|
|
(when (> eww-history-position 1)
|
|
(setq eww-history (nthcdr (1- eww-history-position) eww-history)
|
|
;; We don't really need to set this since `eww--before-browse'
|
|
;; sets it too, but this ensures that other callers can use
|
|
;; this function and get the expected results.
|
|
eww-history-position 1)))
|
|
|
|
(defun eww-clone-previous-history ()
|
|
"Clone and prepend entries in `eww-history' up to the currently-shown one.
|
|
These cloned entries get added to the beginning of `eww-history' so that
|
|
it's possible to navigate back to the very first page for this EWW
|
|
without deleting any history entries.
|
|
|
|
For example, if `eww-history' looks like this (going from newest to
|
|
oldest, with \"*\" marking the current page):
|
|
|
|
E D C* B A
|
|
|
|
then calling this function updates `eww-history' to:
|
|
|
|
C* B A E D C B A
|
|
|
|
This is useful for setting `eww-before-browse-history-function' (which
|
|
see)."
|
|
(when (> eww-history-position 1)
|
|
(setq eww-history (take eww-history-limit
|
|
(append (nthcdr (1- eww-history-position)
|
|
eww-history)
|
|
eww-history))
|
|
;; As with `eww-delete-future-history', we don't really need
|
|
;; to set this since `eww--before-browse' sets it too, but
|
|
;; let's be thorough.
|
|
eww-history-position 1)))
|
|
|
|
(defvar eww-current-buffer)
|
|
|
|
(defun eww-list-histories ()
|
|
"List the eww-histories."
|
|
(interactive)
|
|
(when (null eww-history)
|
|
(error "No eww-histories are defined"))
|
|
(let ((eww-history-trans eww-history)
|
|
(buffer (current-buffer)))
|
|
(set-buffer (get-buffer-create "*eww history*"))
|
|
(eww-history-mode)
|
|
(setq-local eww-current-buffer buffer)
|
|
(let ((inhibit-read-only t)
|
|
(domain-length 0)
|
|
(title-length 0)
|
|
url title format start)
|
|
(erase-buffer)
|
|
(dolist (history eww-history-trans)
|
|
(setq start (point))
|
|
(setq domain-length (max domain-length (length (plist-get history :url))))
|
|
(setq title-length (max title-length (length (plist-get history :title)))))
|
|
(setq format (format "%%-%ds %%-%ds" title-length domain-length)
|
|
header-line-format
|
|
(concat " " (format format "Title" "URL")))
|
|
(dolist (history eww-history-trans)
|
|
(setq start (point))
|
|
(setq url (plist-get history :url))
|
|
(setq title (plist-get history :title))
|
|
(insert (format format title url))
|
|
(insert "\n")
|
|
(put-text-property start (1+ start) 'eww-history history))
|
|
(goto-char (point-min)))
|
|
(pop-to-buffer "*eww history*")))
|
|
|
|
(defun eww-history-browse ()
|
|
"Browse the history under point in eww."
|
|
(interactive nil eww-history-mode)
|
|
(let ((history (get-text-property (line-beginning-position) 'eww-history)))
|
|
(unless history
|
|
(error "No history on the current line"))
|
|
(let ((buffer eww-current-buffer))
|
|
(quit-window)
|
|
(when buffer
|
|
(pop-to-buffer-same-window buffer)))
|
|
(eww-restore-history history)))
|
|
|
|
(defvar-keymap eww-history-mode-map
|
|
"RET" #'eww-history-browse
|
|
"n" #'next-line
|
|
"p" #'previous-line
|
|
:menu '("Eww History"
|
|
["Exit" quit-window t]
|
|
["Browse" eww-history-browse
|
|
:active (get-text-property (line-beginning-position)
|
|
'eww-history)]))
|
|
|
|
(define-derived-mode eww-history-mode special-mode "eww history"
|
|
"Mode for listing eww-histories.
|
|
|
|
\\{eww-history-mode-map}"
|
|
:interactive nil
|
|
(buffer-disable-undo)
|
|
(setq truncate-lines t))
|
|
|
|
;;; eww buffers list
|
|
|
|
(defun eww-buffer-list ()
|
|
"Return a list of all live eww buffers."
|
|
(match-buffers '(derived-mode . eww-mode)))
|
|
|
|
(defun eww-list-buffers ()
|
|
"Pop a buffer with a list of eww buffers."
|
|
(interactive)
|
|
(with-current-buffer (get-buffer-create "*eww buffers*")
|
|
(eww-buffers-mode)
|
|
(eww--list-buffers-display-table))
|
|
(pop-to-buffer "*eww buffers*"))
|
|
|
|
(defun eww--list-buffers-display-table (&optional _ignore-auto _noconfirm)
|
|
"Display a table with the list of eww buffers.
|
|
Will remove all buffer contents first. The parameters IGNORE-AUTO and
|
|
NOCONFIRM are ignored, they are for compatibility with
|
|
`revert-buffer-function'."
|
|
(let ((inhibit-read-only t))
|
|
(erase-buffer)
|
|
(make-vtable
|
|
:columns '((:name "Title" :min-width "25%" :max-width "50%")
|
|
(:name "URL"))
|
|
:objects-function #'eww--list-buffers-get-data
|
|
;; use fixed-font face
|
|
:face 'default)))
|
|
|
|
(defun eww--list-buffers-get-data ()
|
|
"Return the eww-data of BUF, assumed to be a eww buffer.
|
|
The format of the data is (title url buffer), for use in of
|
|
`eww-buffers-mode'."
|
|
(mapcar (lambda (buf)
|
|
(let ((buf-eww-data (buffer-local-value 'eww-data buf)))
|
|
(list (plist-get buf-eww-data :title)
|
|
(plist-get buf-eww-data :url)
|
|
buf)))
|
|
(eww-buffer-list)))
|
|
|
|
(defun eww-buffer-select ()
|
|
"Switch to eww buffer."
|
|
(interactive nil eww-buffers-mode)
|
|
(let ((buffer (nth 2 (vtable-current-object))))
|
|
(unless buffer
|
|
(error "No buffer on current line"))
|
|
(quit-window)
|
|
(pop-to-buffer-same-window buffer)))
|
|
|
|
(defun eww-buffer-show ()
|
|
"Display buffer under point in eww buffer list."
|
|
(let ((buffer (nth 2 (vtable-current-object))))
|
|
(unless buffer
|
|
(error "No buffer on current line"))
|
|
(other-window -1)
|
|
(pop-to-buffer-same-window buffer)
|
|
(other-window 1)))
|
|
|
|
(defun eww-buffer-show-next ()
|
|
"Move to next eww buffer in the list and display it."
|
|
(interactive nil eww-buffers-mode)
|
|
(forward-line)
|
|
(when (eobp)
|
|
(goto-char (point-min)))
|
|
(eww-buffer-show))
|
|
|
|
(defun eww-buffer-show-previous ()
|
|
"Move to previous eww buffer in the list and display it."
|
|
(interactive nil eww-buffers-mode)
|
|
(beginning-of-line)
|
|
(when (bobp)
|
|
(goto-char (point-max)))
|
|
(forward-line -1)
|
|
(eww-buffer-show))
|
|
|
|
(defun eww-buffer-kill ()
|
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"Kill buffer from eww list."
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(interactive nil eww-buffers-mode)
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(let* ((start (line-beginning-position))
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|
(buffer (nth 2 (vtable-current-object)))
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|
(inhibit-read-only t))
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(unless buffer
|
|
(user-error "No buffer on the current line"))
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(kill-buffer buffer)
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|
(forward-line 1)
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|
(delete-region start (point)))
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(when (eobp)
|
|
(forward-line -1))
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|
(eww-buffer-show))
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|
|
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(defvar-keymap eww-buffers-mode-map
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"C-k" #'eww-buffer-kill
|
|
"RET" #'eww-buffer-select
|
|
"n" #'eww-buffer-show-next
|
|
"p" #'eww-buffer-show-previous
|
|
:menu '("Eww Buffers"
|
|
["Exit" quit-window t]
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|
["Select" eww-buffer-select
|
|
:active (nth 2 (vtable-current-object))]
|
|
["Kill" eww-buffer-kill
|
|
:active (nth 2 (vtable-current-object))]))
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|
|
|
(define-derived-mode eww-buffers-mode special-mode "eww buffers"
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|
"Mode for listing buffers.
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|
|
|
\\{eww-buffers-mode-map}"
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|
:interactive nil
|
|
(buffer-disable-undo)
|
|
(setq truncate-lines t
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|
;; This is set so that pressing "g" with point just below the
|
|
;; table will still update the listing.
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|
revert-buffer-function #'eww--list-buffers-display-table))
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|
|
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;;; Desktop support
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|
|
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(defvar eww-desktop-data-save
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|
'(:url :title :point)
|
|
"List of `eww-data' properties to preserve in the desktop file.
|
|
Also used when saving `eww-history'.")
|
|
|
|
(defun eww-desktop-data-1 (alist)
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|
(let ((acc nil)
|
|
(tail alist))
|
|
(while tail
|
|
(let ((k (car tail))
|
|
(v (cadr tail)))
|
|
(when (memq k eww-desktop-data-save)
|
|
(setq acc (cons k (cons v acc)))))
|
|
(setq tail (cddr tail)))
|
|
acc))
|
|
|
|
(defun eww-desktop-history-duplicate (a b)
|
|
(let ((tail a) (r t))
|
|
(while tail
|
|
(if (or (memq (car tail) '(:point)) ; ignore :point
|
|
(equal (cadr tail)
|
|
(plist-get b (car tail))))
|
|
(setq tail (cddr tail))
|
|
(setq tail nil
|
|
r nil)))
|
|
;; .
|
|
r))
|
|
|
|
(defun eww-desktop-misc-data (_directory)
|
|
"Return a property list with data used to restore eww buffers.
|
|
This list will contain, as :history, the list, whose first element is
|
|
the value of `eww-data', and the tail is `eww-history'.
|
|
|
|
If `eww-desktop-remove-duplicates' is non-nil, duplicate
|
|
entries (if any) will be removed from the list.
|
|
|
|
Only the properties listed in `eww-desktop-data-save' are included.
|
|
Generally, the list should not include the (usually overly large)
|
|
:dom, :source and :text properties."
|
|
(let ((history (mapcar #'eww-desktop-data-1
|
|
(cons eww-data eww-history)))
|
|
(posn eww-history-position) rval)
|
|
(list :history
|
|
(if eww-desktop-remove-duplicates
|
|
(prog1
|
|
(setq
|
|
rval (cl-remove-duplicates
|
|
history :test #'eww-desktop-history-duplicate))
|
|
(setq posn
|
|
(cl-position
|
|
(elt history eww-history-position)
|
|
rval :test #'eq)))
|
|
history)
|
|
:history-position posn)))
|
|
|
|
(defun eww-restore-desktop (file-name buffer-name misc-data)
|
|
"Restore an eww buffer from its desktop file record.
|
|
If `eww-restore-desktop' is t or `auto', this function will also
|
|
initiate the retrieval of the respective URI in the background.
|
|
Otherwise, the restored buffer will contain a prompt to do so by using
|
|
\\[eww-reload]."
|
|
(with-current-buffer (get-buffer-create buffer-name)
|
|
(eww-mode)
|
|
;; NB: eww-history, eww-data are buffer-local per (eww-mode)
|
|
(setq eww-history (cdr (plist-get misc-data :history))
|
|
eww-data (or (car (plist-get misc-data :history))
|
|
;; backwards compatibility
|
|
(list :url (plist-get misc-data :uri)))
|
|
eww-history-position (plist-get misc-data :history-position))
|
|
(unless file-name
|
|
(when (plist-get eww-data :url)
|
|
(cl-case eww-restore-desktop
|
|
((t auto) (eww (plist-get eww-data :url)))
|
|
((nil) (when (zerop (buffer-size))
|
|
(let ((inhibit-read-only t))
|
|
(insert (substitute-command-keys
|
|
eww-restore-reload-prompt))))))))
|
|
;; .
|
|
(current-buffer)))
|
|
|
|
(add-to-list 'desktop-buffer-mode-handlers
|
|
'(eww-mode . eww-restore-desktop))
|
|
|
|
;;; Isearch support
|
|
|
|
(defun eww-isearch-next-buffer (&optional _buffer wrap)
|
|
"Go to the next page to search using `rel' attribute for navigation."
|
|
(let ((eww-retrieve-command 'sync))
|
|
(if wrap
|
|
(condition-case nil
|
|
(eww-top-url)
|
|
(error nil))
|
|
(if isearch-forward
|
|
(eww-next-url)
|
|
(eww-previous-url))))
|
|
(current-buffer))
|
|
|
|
;;; bookmark.el support
|
|
|
|
(declare-function bookmark-make-record-default
|
|
"bookmark" (&optional no-file no-context posn))
|
|
(declare-function bookmark-prop-get "bookmark" (bookmark prop))
|
|
|
|
(defun eww-bookmark-name ()
|
|
"Create a default bookmark name for the current EWW buffer."
|
|
(plist-get eww-data :title))
|
|
|
|
(defun eww-bookmark-make-record ()
|
|
"Create a bookmark for the current EWW buffer."
|
|
`(,(eww-bookmark-name)
|
|
,@(bookmark-make-record-default t)
|
|
(location . ,(plist-get eww-data :url))
|
|
(handler . eww-bookmark-jump)))
|
|
|
|
;;;###autoload
|
|
(defun eww-bookmark-jump (bookmark)
|
|
"Default bookmark handler for EWW buffers."
|
|
(eww (bookmark-prop-get bookmark 'location)))
|
|
|
|
(put 'eww-bookmark-jump 'bookmark-handler-type "EWW")
|
|
|
|
(provide 'eww)
|
|
|
|
;;; Alternate links (RSS and Atom feeds, etc.)
|
|
|
|
(defun eww--alternate-urls (dom &optional base)
|
|
"Return an alist of alternate links in DOM.
|
|
|
|
Each element is a list of the form (URL TYPE TITLE) where URL is
|
|
the href attribute of the link expanded relative to BASE, TYPE is
|
|
its type attribute, and TITLE is its title attribute. If any of
|
|
these attributes is absent, the corresponding element is nil."
|
|
(let ((alternates
|
|
(seq-filter
|
|
(lambda (attrs) (string= (alist-get 'rel attrs)
|
|
"alternate"))
|
|
(mapcar #'dom-attributes (dom-by-tag dom 'link)))))
|
|
(mapcar (lambda (alternate)
|
|
(list (url-expand-file-name (alist-get 'href alternate)
|
|
base)
|
|
(alist-get 'type alternate)
|
|
(alist-get 'title alternate)))
|
|
alternates)))
|
|
|
|
(defun eww-read-alternate-url ()
|
|
"Get the URL of an alternate link of this page.
|
|
|
|
If there is just one alternate link, return its URL. If there
|
|
are multiple alternate links, prompt for one in the minibuffer
|
|
with completion. If there are none, return nil."
|
|
(when-let* ((alternates (eww--alternate-urls
|
|
(plist-get eww-data :dom)
|
|
(plist-get eww-data :url))))
|
|
(let ((url-max-width
|
|
(seq-max (mapcar #'string-pixel-width
|
|
(mapcar #'car alternates))))
|
|
(title-max-width
|
|
(seq-max (mapcar #'string-pixel-width
|
|
(mapcar #'caddr alternates))))
|
|
(sep-width (string-pixel-width " ")))
|
|
(if (cdr alternates)
|
|
(let ((completion-extra-properties
|
|
(list :annotation-function
|
|
(lambda (feed)
|
|
(let* ((attrs (alist-get feed
|
|
alternates
|
|
nil
|
|
nil
|
|
#'string=))
|
|
(type (car attrs))
|
|
(title (cadr attrs)))
|
|
(concat
|
|
(propertize " " 'display
|
|
`(space :align-to
|
|
(,(+ sep-width
|
|
url-max-width))))
|
|
title
|
|
(when type
|
|
(concat
|
|
(propertize " " 'display
|
|
`(space :align-to
|
|
(,(+ (* 2 sep-width)
|
|
url-max-width
|
|
title-max-width))))
|
|
"[" type "]"))))))))
|
|
(completing-read "Alternate URL: " alternates nil t))
|
|
(caar alternates)))))
|
|
|
|
(defun eww-copy-alternate-url ()
|
|
"Copy the alternate URL of the current page into the kill ring.
|
|
If there are multiple alternate links on the current page, prompt
|
|
for one in the minibuffer, with completion.
|
|
Alternate links are references that an HTML page may include to
|
|
point to its alternative representations, such as a translated
|
|
version or an RSS feed."
|
|
(interactive nil eww-mode)
|
|
(if-let* ((url (eww-read-alternate-url)))
|
|
(progn
|
|
(kill-new url)
|
|
(message "Copied %s to kill ring" url))
|
|
(user-error "No alternate links found on this page!")))
|
|
|
|
;;; eww.el ends here
|