pax_global_header00006660000000000000000000000064147737414120014524gustar00rootroot0000000000000052 comment=72112b358c41d2147122b217d11f272a22f285e4 osm-1.7/000077500000000000000000000000001477374141200121715ustar00rootroot00000000000000osm-1.7/.gitignore000066400000000000000000000001021477374141200141520ustar00rootroot00000000000000*-autoloads.el *-pkg.el *.elc *.info *.texi *~ \#*\# /README-elpa osm-1.7/CHANGELOG.org000066400000000000000000000043601477374141200141740ustar00rootroot00000000000000#+title: osm.el - Changelog #+author: Daniel Mendler #+language: en * Version 1.7 (2025-04-04) - Fix touchscreen support. * Version 1.6 (2025-01-28) - Mark gpx track start with a pin. - Add ~imenu~ support. * Version 1.5 (2024-12-22) - Require Emacs 28.1. - ~osm-server-list~: Add ~:ext~ server property. * Version 1.4 (2024-07-24) - Bump Compat dependency to Compat 30. * Version 1.3 (2024-01-22) - Add ~osm-jump~ command to jump to pins (bookmarks, way points, POIs) by name. * Version 1.2 (2023-12-27) - Store names for track way points. - Add ~osm-rename~ command to rename both bookmarks and track way points. - Remove ~osm-max-cache~ customization variable. * Version 1.1 (2023-12-23) - ~osm--purge-tile-cache~: Delete empty tile cache directories. - ~osm-search~: Add message when contacting the server. - ~osm-delete~: New command to delete track or bookmark pins. - ~osm-mouse-select~: New command to select pin. - ~osm-bookmark-delete~: Add confirmation. - ~osm-org-link-click~: Remove, use ~org-store-link~ instead. - Rename ~osm-transient-click~ to ~osm-mouse-pin~. - Unify ~osm-bookmark-set~ and ~osm-bookmark-set-click~. - Add distance measurement for manual track. Press ~S-~ (~osm-mouse-track~) to place the pins of the track. - Add ~osm-max-cache~ to keep image cache size in check. * Version 1.0 (2023-12-01) - =osm-search-server=: New customization option. - Automatically register Org geo links. =osm-ol.el= has been removed and should not be required anymore from the =init.el=. * Version 0.14 (2023-10-14) - Compatibility with =pixel-scroll-precision-mode=. - Update list of servers. - Add =osm-add-server= utility function with error checking. - =osm-search=: Improve UI if default completions buffer is used. * Version 0.13 (2023-07-02) - Provide =osm-prefix-map=. - =osm-server-list=: Add support for an api-key placeholder =%k= in the server =:url=. * Version 0.12 (2023-05-01) - Autoload bugfix for Emacs 27 - Use =easy-menu-define= to make sure that the menu bar and the mode line both get the OSM mouse menu. * Version 0.11 (2023-04-17) - Ensure that mouse pointer is an arrow over the map. - Use =natnum= defcustom type. - Ignore mouse drags to avoid region marking. * Version 0.10 (2023-02-15) - Start of changelog. osm-1.7/LICENSE000066400000000000000000001045151477374141200132040ustar00rootroot00000000000000 GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. 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The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see . The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read . osm-1.7/README.org000066400000000000000000000204321477374141200136400ustar00rootroot00000000000000#+title: osm.el - OpenStreetMap viewer for Emacs #+author: Daniel Mendler #+language: en #+export_file_name: osm.texi #+texinfo_dir_category: Emacs misc features #+texinfo_dir_title: Osm: (osm). #+texinfo_dir_desc: OpenStreetMap viewer for Emacs #+html: GNU Emacs #+html: GNU ELPA #+html: GNU-devel ELPA #+html: MELPA #+html: MELPA Stable #+html:

The map data is © OpenStreetMap contributors, licensed under the ODbL The map rendering is © OpenTopoMap, licensed under the CC-BY-SA.

Osm.el is a tile-based map viewer, with a responsive movable and zoomable display. The map can be controlled with the keyboard or with the mouse. The viewer fetches the map tiles in parallel from tile servers via the =curl= program. The package comes with a list of multiple preconfigured tile servers. You can bookmark your favorite locations using regular Emacs bookmarks or create links from Org files to locations. Furthermore the package provides commands to search for locations by name and to open and display GPX tracks. #+toc: headlines 8 * Features - Responsive, zoomable and movable map display - Display of tracks and POIs from GPX file - Parallel fetching of tiles with curl - Moving in large and small steps - Mouse support (dragging, clicking, menu) - Map scale indicator - Distance measurement - Go to coordinate - Search for location by name - Org link, Geo url and Elisp link support - Bookmarked positions with pins - Multiple preconfigured tile servers * Configuration The package is available on GNU ELPA and can be installed with =package-install=. Note that Osm.el requires Emacs 28 and depends on the external =curl= program. Emacs must be built with =libxml=, =libjansson=, =librsvg=, =libjpeg= and =libpng= support. The following is an example configuration which relies on =use-package=. Please take a look at the [[https://github.com/minad/osm/wiki][wiki]] for additional tile server configurations, e.g., Google Maps. #+begin_src emacs-lisp (use-package osm :bind ("C-c m" . osm-prefix-map) ;; Alternatives: `osm-home' or `osm' :custom ;; Take a look at the customization group `osm' for more options. (osm-server 'default) ;; Configure the tile server (osm-copyright t) ;; Display the copyright information :config ;; Add custom servers, see also https://github.com/minad/osm/wiki ;; (osm-add-server 'myserver ;; :name "My tile server" ;; :group "Custom" ;; :description "Tiles based on aerial images" ;; :url "https://myserver/tiles/%z/%x/%y.png?apikey=%k") ) #+end_src * Bookmarks, Org links, Geo urls and Elisp links There exist multiple methods to store a location, such that you can return there afterwards. - ~b~: Create a bookmark of the current location. The bookmark is stored as an Emacs bookmark in =bookmark-alist=. You can jump to the bookmark via the completion commands =osm-bookmark-jump= or =bookmark-jump=. - ~l~: Store an Org link to the current location. The link can be inserted subsequently into an Org buffer with ~C-c C-l~. - ~u~: Save the geo url of the current location in the kill ring. The url can be inserted in another buffer via ~C-y~. A geo url has the form ~geo:27.96,86.89;z=13~. - ~C-u u~: Save an Elisp link to the current location in the kill ring. An Elisp link has the form ~(osm 51.49 -0.14 11)~. Bookmarks and Org links can be created at point by clicking with the mouse. See the docstrings of the commands ~osm-bookmark-set~ and ~org-link-store~. **** Org link examples Click on a link or press ~RET~ to jump to the location. These links work in Org buffers in Emacs. Furthermore you can open Org links in arbitrary buffers with ~org-open-at-point-global~. I recommend binding the command to a convenient key, e.g., ~C-c o~. The format of the links complies with the [[https://en.wikipedia.org/wiki/Geo_URI_scheme][geo URI scheme]] defined by [[https://datatracker.ietf.org/doc/html/rfc5870][RFC 5870]]. #+begin_example [[geo:41.869560826994544,12.45849609375;z=6;s=opentopomap][Italia, 41.87° 12.46° OpenTopoMap]] [[geo:51.48950698022105,-0.144195556640625;z=11][London, England, 51.49° -0.14°]] [[geo:55.686875255964424,12.569732666015625;z=12;s=cyclosm][København, Danmark, 55.69° 12.57° CyclOSM]] [[geo:27.961656050984658,86.89224243164062;z=13;s=opentopomap][Mount Everest, 27.96° 86.89° OpenTopoMap]] (Address link) #+end_example **** Elisp link examples Place the point behind the closing parenthesis and press ~C-x C-e~ to jump to the location. The Elisp links can be used in arbitrary text files. Since they are Elisp s-expressions they can be easily manipulated programatically. #+begin_src emacs-lisp (osm 41.869561 12.458496 6 'opentopomap "Lazio, Italia") (osm 51.489507 -0.144196 11 "London, Greater London, England, SW1A 2DX, United Kingdom") (osm 55.686875 12.569733 12 'cyclosm "København, Københavns Kommune, Region Hovedstaden, 1357, Danmark") (osm 27.961656 86.892242 13 'opentopomap "Khumjung, Khumbupasanglahmu, सोलुखुम्बु, Province #1, Nepal") (osm "Tour Eiffel, Av. Gustave Eiffel, Paris") ;; Address link #+end_src * Distance measurement Osm provides a simple distance measurement utility. In order to measure a distance, place or select a pin by clicking with the left mouse button. Then create one or more additional way points by pressing shift and clicking the left mouse button. The length of the track will be shown in the echo area. You can select the way points of the track and delete them with ~d~ or ~DEL~. * Commands and Key Bindings Top-level commands in =osm-prefix-map=. These bindings are available globally if you bind =osm-prefix-map= to a key like =C-c m=. For example, to search for a location press the key sequence =C-c m s=. Furthermore the key bindings are available in Osm buffers. There it is sufficient to press the key =s= only to initiate a search. - ~h~: =osm-home= - Open new map at home coordinates - ~s~: =osm-search= - Search and jump to location - ~t~: =osm-goto= - Go to coordinates - ~v~: =osm-server= - Select server - ~j~: =osm-jump= - Jump to pin (bookmark or POI) - ~x~: =osm-gpx-show= - Show GPX file in map viewer Some additional key bindings are available in Osm buffers: - ~~: Small step scrolling - ~C-~, ~M-~, ~S-~: Large step scrolling - ~+~, ~SPC~: =osm-zoom-in= - Zoom in - ~-~, ~S-SPC~: =osm-zoom-out= - Zoom out - ~~: =osm-mouse-pin= - Place pin at point - ~~: =org-link-store= - Store point as Org link - ~~: =osm-bookmark-set= - Store point as bookmark - ~S-~: =osm-mouse-track= - Create track pin to measure distance - ~~: =osm-mouse-drag= - Drag the map with the mouse - ~d~, ~DEL~: =osm-delete= - Delete selected pin (bookmark or way point) - ~n~: =osm-rename= - Rename selected pin - ~c~: =osm-center= - Center to currently selected pin - ~X~: =osm-gpx-hide= - Hide overlays from GPX file - ~l~: =org-store-link= - Store Org link - ~u~: =osm-save-url= - Save geo url in the kill ring - ~b~: =osm-bookmark-set= - Set bookmark - ~q~: =quit-window= - Close buffer and window - ~o~: =clone-buffer= - Clone buffer * Related projects There have been other attempts at map viewers in Emacs before. - https://github.com/ruediger/osm-mode - https://github.com/svenssonjoel/Emacs-OSM - https://github.com/jd/google-maps.el - https://github.com/emacsattic/org-osm-link * Contributions Since this package is part of [[https://elpa.gnu.org/packages/osm.html][GNU ELPA]] contributions require a copyright assignment to the FSF. osm-1.7/osm.el000066400000000000000000002135661477374141200133260ustar00rootroot00000000000000;;; osm.el --- OpenStreetMap viewer -*- lexical-binding: t -*- ;; Copyright (C) 2022-2025 Free Software Foundation, Inc. ;; Author: Daniel Mendler ;; Maintainer: Daniel Mendler ;; Created: 2022 ;; Version: 1.7 ;; Package-Requires: ((emacs "28.1") (compat "30")) ;; URL: https://github.com/minad/osm ;; Keywords: network, multimedia, hypermedia, mouse ;; This file is part of GNU Emacs. ;; This program is free software: you can redistribute it and/or modify ;; it under the terms of the GNU General Public License as published by ;; the Free Software Foundation, either version 3 of the License, or ;; (at your option) any later version. ;; This program is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; You should have received a copy of the GNU General Public License ;; along with this program. If not, see . ;;; Commentary: ;; Osm.el is a tile-based map viewer, with a responsive movable and ;; zoomable display. The map can be controlled with the keyboard or with ;; the mouse. The viewer fetches the map tiles in parallel from tile ;; servers via the `curl' program. The package comes with a list of ;; multiple preconfigured tile servers. You can bookmark your favorite ;; locations using regular Emacs bookmarks or create links from Org files ;; to locations. Furthermore the package provides commands to measure ;; distances, search for locations by name and to open and display GPX ;; tracks. ;; osm.el requires Emacs 28 and depends on the external `curl' program. ;; Emacs must be built with libxml, libjansson, librsvg, libjpeg and ;; libpng support. ;;; Code: (require 'compat) (require 'bookmark) (require 'dom) (eval-when-compile (require 'cl-lib) (require 'subr-x)) (defgroup osm nil "OpenStreetMap viewer." :link '(info-link :tag "Info Manual" "(osm)") :link '(url-link :tag "Website" "https://github.com/minad/osm") :link '(url-link :tag "Wiki" "https://github.com/minad/osm/wiki") :link '(emacs-library-link :tag "Library Source" "osm.el") :group 'web :prefix "osm-") (defcustom osm-curl-options "--disable --fail --location --silent --max-time 30" "Curl command line options." :type 'string) (defcustom osm-search-language "en" "Language used for search results. Use RFC 1766 abbreviations, e.g.: `en' for English, `de' for German. A comma-separated specifies descending order of preference. See also `url-mime-language-string'." :type 'string) (defcustom osm-search-server "https://nominatim.openstreetmap.org" "Server used to search for location names. The server must offer the nominatim.org API." :type 'string) (defcustom osm-server-defaults '(:min-zoom 2 :max-zoom 19 :download-batch 4 :max-connections 2 :subdomains ("a" "b" "c")) "Default server properties. See also `osm-server-list'." :type 'plist) (defcustom osm-server-list '((default :name "Carto" :description "Standard Carto map provided by OpenStreetMap" :url "https://%s.tile.openstreetmap.org/%z/%x/%y.png" :group "Standard" :copyright ("Map data © {OpenStreetMap|https://www.openstreetmap.org/copyright} contributors" "Map style © {OpenStreetMap Standard|https://www.openstreetmap.org/copyright}")) (de :name "Carto(de)" :description "Localized Carto map provided by OpenStreetMap Germany" :url "https://%s.tile.openstreetmap.de/%z/%x/%y.png" :group "Standard" :copyright ("Map data © {OpenStreetMap|https://www.openstreetmap.org/copyright} contributors" "Map style © {OpenStreetMap Deutschland|https://www.openstreetmap.de/germanstyle.html}")) (fr :name "Carto(fr)" :description "Localized Carto map by OpenStreetMap France" :url "https://%s.tile.openstreetmap.fr/osmfr/%z/%x/%y.png" :group "Standard" :copyright ("Map data © {OpenStreetMap|https://www.openstreetmap.org/copyright} contributors" "Map style © {OpenStreetMap France|https://www.openstreetmap.fr/mentions-legales/}")) (humanitarian :name "Humanitarian" :description "Humanitarian map provided by OpenStreetMap France" :url "https://%s.tile.openstreetmap.fr/hot/%z/%x/%y.png" :group "Special Purpose" :copyright ("Map data © {OpenStreetMap|https://www.openstreetmap.org/copyright} contributors" "Map style © {Humanitarian OpenStreetMap Team|https://www.hotosm.org/updates/2013-09-29_a_new_window_on_openstreetmap_data}")) (cyclosm :name "CyclOSM" :description "Bicycle-oriented map provided by OpenStreetMap France" :url "https://%s.tile-cyclosm.openstreetmap.fr/cyclosm/%z/%x/%y.png" :group "Transportation" :copyright ("Map data © {OpenStreetMap|https://www.openstreetmap.org/copyright} contributors" "Map style © {CyclOSM|https://www.cyclosm.org/} contributors")) (openriverboatmap :name "OpenRiverBoatMap" :description "Waterways map provided by OpenStreetMap France" :url "https://%s.tile.openstreetmap.fr/openriverboatmap/%z/%x/%y.png" :group "Transportation" :copyright ("Map data © {OpenStreetMap|https://www.openstreetmap.org/copyright} contributors" "Map style © {OpenRiverBoatMap|https://github.com/tilery/OpenRiverboatMap}")) (opentopomap :name "OpenTopoMap" :description "Topographical map provided by OpenTopoMap" :url "https://%s.tile.opentopomap.org/%z/%x/%y.png" :group "Topographical" :copyright ("Map data © {OpenStreetMap|https://www.openstreetmap.org/copyright} contributors" "Map style © {OpenTopoMap|https://www.opentopomap.org} ({CC-BY-SA|https://creativecommons.org/licenses/by-sa/3.0/})" "Elevation data: {SRTM|https://www2.jpl.nasa.gov/srtm/}")) (opvn :name "ÖPNV" :max-zoom 18 :description "Base layer with public transport information" :url "http://%s.tile.memomaps.de/tilegen/%z/%x/%y.png" :group "Transportation" :copyright ("Map data © {OpenStreetMap|https://www.openstreetmap.org/copyright} contributors" "Map style © {ÖPNVKarte|https://www.öpnvkarte.de}"))) "List of tile servers. Allowed keys: :name Server name :description Server description :copyright Copyright information :group Name of server groups for related servers :url Url with placeholders :ext File name extension :min-zoom Minimum zoom level :max-zoom Maximum zoom level :download-batch Number of tiles downloaded via a single connection :max-connections Maximum number of parallel connections :subdomains Subdomains used for the %s placeholder See also `osm-server-defaults' for default values used for a server if the property is missing. The :url of each server should specify %x, %y, %z and %s placeholders for the map coordinates. It can optionally use an %s placeholder for the subdomain and a %k placeholder for an apikey. The apikey will be retrieved via `auth-source-search' with the :host set to the domain name and the :user to the string \"apikey\"." :type '(alist :key-type symbol :value-type plist)) (defcustom osm-copyright t "Display the copyright information above the map." :type 'boolean) (defcustom osm-pin-colors '((osm-selected . "#e20") (osm-bookmark . "#f80") (osm-home . "#80f") (osm-track . "#00e") (osm-gpx-poi . "#88f") (osm-gpx-track . "#88f")) "Colors of pins." :type '(alist :key-type symbol :value-type string)) (defcustom osm-track-style "stroke:#00a;stroke-width:5;stroke-linejoin:round;stroke-linecap:round;opacity:0.4;" "SVG style used to draw tracks." :type 'string) (defcustom osm-home (let ((lat (bound-and-true-p calendar-latitude)) (lon (bound-and-true-p calendar-longitude))) (if (and lat lon) (list lat lon 12) (list 0 0 3))) "Home coordinates, latitude, longitude and zoom level." :type '(list :tag "Coordinates" (number :tag "Latitude ") (number :tag "Longitude ") (number :tag "Zoom "))) (defcustom osm-large-step 256 "Scroll step in pixel." :type 'natnum) (defcustom osm-tile-border nil "Set to t to display thin tile borders. For debugging set the value to `debug', such that a border is shown around SVG tiles." :type '(choice boolean (const debug))) (defcustom osm-small-step 16 "Scroll step in pixel." :type 'natnum) (defcustom osm-server 'default "Tile server name." :type 'symbol) (defcustom osm-tile-directory (expand-file-name (file-name-concat (or (getenv "XDG_CACHE_HOME") "~/.cache/") "emacs/osm/")) "Tile cache directory." :type 'string) (defcustom osm-max-age 14 "Maximum tile age in days. Should be at least 7 days according to the server usage policies." :type '(choice (const nil) natnum)) (defcustom osm-max-tiles 256 "Number of tiles to keep in the memory cache." :type '(choice (const nil) natnum)) (defun osm--menu-item (menu) "Generate menu item from MENU." `(menu-item "" nil :filter ,(lambda (&optional _) (select-window (posn-window (event-start last-input-event))) (if (functionp menu) (funcall menu) menu)))) (defun osm--mouse-ignore-wheel (_prompt) "Ignore mouse wheel events during key translation." (pcase (this-single-command-raw-keys) ((and `[,e] (let y (event-basic-type e)) (guard (symbolp y)) (guard (string-search "wheel-" (symbol-name y)))) []) (k k))) (defvar-keymap osm-prefix-map :doc "Global prefix map of OSM entry points." "h" #'osm-home "s" #'osm-search "v" #'osm-server "t" #'osm-goto "j" #'osm-jump "x" #'osm-gpx-show "X" #'osm-gpx-hide) ;;;###autoload (autoload 'osm-prefix-map "osm" nil t 'keymap) (defalias 'osm-prefix-map osm-prefix-map) ;; TODO add support for touchscreen-pinch for zooming. (defvar-keymap osm-mode-map :doc "Keymap used by `osm-mode'." :parent (make-composed-keymap osm-prefix-map special-mode-map) "" #'osm-home "+" #'osm-zoom-in "-" #'osm-zoom-out "SPC" #'osm-zoom-in "S-SPC" #'osm-zoom-out "" #'osm-mouse-pin "" 'org-store-link "" #'osm-bookmark-set "S-" #'ignore "S-" #'osm-mouse-track "" #'osm-mouse-drag "" #'osm-mouse-drag "" #'osm-mouse-drag "" #'ignore "" #'ignore "" #'ignore "" #'osm-up "" #'osm-down "" #'osm-left "" #'osm-right "C-" #'osm-up-up "C-" #'osm-down-down "C-" #'osm-left-left "C-" #'osm-right-right "M-" #'osm-up-up "M-" #'osm-down-down "M-" #'osm-left-left "M-" #'osm-right-right "S-" #'osm-up-up "S-" #'osm-down-down "S-" #'osm-left-left "S-" #'osm-right-right "n" #'osm-rename "d" #'osm-delete "DEL" #'osm-delete "" #'osm-delete "c" #'osm-center "o" #'clone-buffer "u" #'osm-save-url "l" 'org-store-link "b" #'osm-bookmark-set "X" #'osm-gpx-hide " " #'osm-down " " #'osm-up "<" nil ">" nil) (dolist (pin osm-pin-colors) (setq pin (vector (car pin))) (define-key key-translation-map pin #'osm--mouse-ignore-wheel) (define-key osm-mode-map pin #'osm-mouse-select)) (easy-menu-define osm-mode-menu osm-mode-map "Menu for `osm-mode'." '("OSM" ["Go home" osm-home] ["Center" osm-center] ["Go to coordinates" osm-goto] ["Jump to pin" osm-jump] ["Search by name" osm-search] ["Change tile server" osm-server] "--" ["Org Link" org-store-link] ["Geo Url" osm-save-url] ["Elisp Link" (osm-save-url t)] ("Bookmark" ["Set" osm-bookmark-set] ["Jump" osm-bookmark-jump] ["Rename" osm-bookmark-rename] ["Delete" osm-bookmark-delete]) "--" ["Show GPX file" osm-gpx-show] ["Hide GPX file" osm-gpx-hide] "--" ["Clone buffer" clone-buffer] ["Revert buffer" revert-buffer] "--" ["Manual" (info "(osm)")] ["Customize" (customize-group 'osm)])) (defconst osm--placeholder '(:type svg :width 256 :height 256 :data " ") "Placeholder image for tiles.") (defvar osm--search-history nil "Minibuffer history used by command `osm-search'.") (defvar osm--jump-history nil "Minibuffer history used by command `osm-jump'.") (defvar osm--server-history nil "Minibuffer history used by command `osm-server'.") (defvar osm--purge-directory 0 "Last time the tile cache was cleaned.") (defvar osm--tile-cache nil "Global tile memory cache.") (defvar osm--tile-age 0 "Tile age, incremented on every update.") (defvar osm--gpx-files nil "Global list of loaded tracks.") (defvar osm--track nil "List of track coordinates.") (defvar osm--download-processes nil "Globally active download processes.") (defvar osm--download-active nil "Globally active download jobs.") (defvar osm--download-subdomain nil "Subdomain indices to query the servers in a round-robin fashion.") (defvar-local osm--download-queue nil "Buffer-local tile download queue.") (defvar-local osm--wx 0 "Half window width in pixel.") (defvar-local osm--wy 0 "Half window height in pixel.") (defvar-local osm--nx 0 "Number of tiles in x direction.") (defvar-local osm--ny 0 "Number of tiles in y direction.") (defvar-local osm--zoom nil "Zoom level of the map.") (defvar-local osm--lat nil "Latitude coordinate.") (defvar-local osm--lon nil "Longitude coordinate.") (defvar-local osm--overlays nil "Overlay hash table. Local per buffer since the overlays depend on the zoom level.") (defvar-local osm--pin nil "Currently selected pin.") (defmacro osm--each (&rest body) "Execute BODY in each `osm-mode' buffer." (cl-with-gensyms (buf) `(dolist (,buf (buffer-list)) (when (eq (buffer-local-value 'major-mode ,buf) #'osm-mode) (with-current-buffer ,buf ,@body))))) (defun osm--server-menu () "Generate server menu." (let (menu last-group) (dolist (server osm-server-list) (let* ((plist (cdr server)) (group (plist-get plist :group))) (unless (equal last-group group) (push (format "─── %s ───" group) menu) (setq last-group group)) (push `[,(plist-get plist :name) (osm-server ',(car server)) :style toggle :selected (eq osm-server ',(car server))] menu))) (easy-menu-create-menu "Server" (nreverse menu)))) (defsubst osm--lon-to-normalized-x (lon) "Convert LON to normalized x coordinate." (/ (+ lon 180.0) 360.0)) (defsubst osm--lat-to-normalized-y (lat) "Convert LAT to normalized y coordinate." (setq lat (* lat (/ float-pi 180.0))) (- 0.5 (/ (log (+ (tan lat) (/ 1.0 (cos lat)))) float-pi 2))) (defun osm--boundingbox-to-zoom (lat1 lat2 lon1 lon2) "Compute zoom level from boundingbox LAT1 to LAT2 and LON1 to LON2." (let ((w (/ (frame-pixel-width) 256)) (h (/ (frame-pixel-height) 256))) (max (osm--server-property :min-zoom) (min (osm--server-property :max-zoom) (min (logb (/ w (abs (- (osm--lon-to-normalized-x lon1) (osm--lon-to-normalized-x lon2))))) (logb (/ h (abs (- (osm--lat-to-normalized-y lat1) (osm--lat-to-normalized-y lat2)))))))))) (defun osm--x-to-lon (x zoom) "Return longitude in degrees for X/ZOOM." (- (/ (* x 360.0) 256.0 (expt 2.0 zoom)) 180.0)) (defun osm--y-to-lat (y zoom) "Return latitude in degrees for Y/ZOOM." (setq y (* float-pi (- 1 (* 2 (/ y 256.0 (expt 2.0 zoom)))))) (/ (* 180 (atan (/ (- (exp y) (exp (- y))) 2))) float-pi)) (defsubst osm--lon-to-x (lon zoom) "Convert LON/ZOOM to x coordinate in pixel." (floor (* 256 (expt 2.0 zoom) (osm--lon-to-normalized-x lon)))) (defsubst osm--lat-to-y (lat zoom) "Convert LAT/ZOOM to y coordinate in pixel." (floor (* 256 (expt 2.0 zoom) (osm--lat-to-normalized-y lat)))) (defsubst osm--x () "Return longitude in pixel of map center." (osm--lon-to-x osm--lon osm--zoom)) (defsubst osm--y () "Return latitude in pixel of map center." (osm--lat-to-y osm--lat osm--zoom)) (defsubst osm--x0 () "Return longitude in pixel of top left corner." (- (osm--x) osm--wx)) (defsubst osm--y0 () "Return latitude in pixel of top left corner." (- (osm--y) osm--wy)) (defun osm--server-property (prop &optional server) "Return server property PROP for SERVER." (or (plist-get (alist-get (or server osm-server) osm-server-list) prop) (plist-get osm-server-defaults prop))) (defun osm--tile-url (x y zoom) "Return tile url for coordinate X, Y and ZOOM." (let ((url (osm--server-property :url)) (sub (osm--server-property :subdomains)) (key (osm--server-property :key))) (when (and (string-search "%k" url) (not key)) (require 'auth-source) (declare-function auth-source-search "auth-source") (let ((host (string-join (last (split-string (cadr (split-string url "/" t)) "\\.") 2) "."))) (setq key (plist-get (car (auth-source-search :require '(:user :host :secret) :host host :user "apikey")) :secret)) (unless key (warn "No auth source secret found for apikey@%s" host) (setq key "")) (setf (plist-get (alist-get osm-server osm-server-list) :key) key))) (format-spec url `((?z . ,zoom) (?x . ,x) (?y . ,y) (?k . ,(if (functionp key) (funcall key) key)) (?s . ,(nth (mod (alist-get osm-server osm--download-subdomain 0) (length sub)) sub)))))) (defun osm--tile-file (x y zoom) "Return tile file name for coordinate X, Y and ZOOM." (file-name-concat (expand-file-name osm-tile-directory) (symbol-name osm-server) (format "%d-%d-%d.%s" zoom x y (or (osm--server-property :ext) (file-name-extension (url-file-nondirectory (osm--server-property :url))))))) (defun osm--enqueue-download (x y) "Enqueue tile X/Y for download." (when (let ((n (expt 2 osm--zoom))) (and (>= x 0) (>= y 0) (< x n) (< y n))) (let ((job (list osm-server osm--zoom x y))) (unless (or (member job osm--download-queue) (member job osm--download-active)) (setq osm--download-queue (nconc osm--download-queue (list job))))))) (defun osm--download-filter (output) "Filter function for the download process which receives OUTPUT." (while (string-match "\\`\\([0-9]+\\) \\(.*?/\\([^/]+\\)/\\([0-9]+\\)-\\([0-9]+\\)-\\([0-9]+\\)\\.[^\r\n]+\\)\r?\n" output) (let ((status (match-string 1 output)) (file (match-string 2 output)) (server (intern-soft (match-string 3 output))) (zoom (string-to-number (match-string 4 output))) (x (string-to-number (match-string 5 output))) (y (string-to-number (match-string 6 output)))) (setq output (substring output (match-end 0))) (when (equal status "200") (ignore-errors (rename-file file (string-remove-suffix ".tmp" file) t)) (osm--each (when (and (= osm--zoom zoom) (eq osm-server server)) (osm--display-tile x y (osm--get-tile x y))))) (cl-callf2 delete (list server zoom x y) osm--download-active) (delete-file file))) output) (defun osm--download-command () "Build download command." (let* ((count 0) (batch (osm--server-property :download-batch)) (subs (length (osm--server-property :subdomains))) (parallel (* subs (osm--server-property :max-connections))) args jobs job) (while (and (< count batch) (setq job (nth (* count parallel) osm--download-queue))) (pcase-let ((`(,_server ,zoom ,x ,y) job)) (setq args `(,(osm--tile-url x y zoom) ,(concat (osm--tile-file x y zoom) ".tmp") "--output" ,@args)) (push job jobs) (push job osm--download-active) (cl-incf count))) (osm--each (dolist (job jobs) (cl-callf2 delq job osm--download-queue))) (cl-callf (lambda (s) (mod (1+ s) subs)) (alist-get osm-server osm--download-subdomain 0)) (cons `("curl" "--write-out" "%{http_code} %{filename_effective}\n" ,@(split-string-and-unquote osm-curl-options) ,@(nreverse args)) jobs))) (defun osm--download () "Download next tiles from the queue." (when (and (< (length (alist-get osm-server osm--download-processes)) (* (length (osm--server-property :subdomains)) (osm--server-property :max-connections))) osm--download-queue) (pcase-let ((`(,command . ,jobs) (osm--download-command)) (dir (file-name-concat (expand-file-name osm-tile-directory) (symbol-name osm-server))) (server osm-server)) (make-directory dir t) (push (make-process :name "*osm curl*" :connection-type 'pipe :noquery t :command command :filter (let ((output "")) (lambda (_proc out) (setq output (osm--download-filter (concat output out))) (force-mode-line-update t))) :sentinel (lambda (proc _status) (dolist (job jobs) (cl-callf2 delq job osm--download-active)) (cl-callf2 delq proc (alist-get server osm--download-processes nil t)) (force-mode-line-update t) (osm--download))) (alist-get server osm--download-processes)) (force-mode-line-update t) (osm--download)))) (defun osm-mouse-drag (event) "Handle drag EVENT." (declare (completion ignore)) (interactive "@e") (pcase-let* ((`(,sx . ,sy) (posn-x-y (event-start event))) (win (selected-window)) (map (define-keymap "" (lambda (event) (interactive "e") (setq event (event-start event)) (when (eq win (posn-window event)) (pcase-let ((`(,ex . ,ey) (posn-x-y event))) (osm--move (- sx ex) (- sy ey)) (setq sx ex sy ey) (osm--update))))))) (setq track-mouse 'dragging) (set-transient-map map (lambda () (eq (car-safe last-command-event) 'mouse-movement)) (lambda () (setq track-mouse nil))))) (defun osm--zoom-in-wheel (_n) "Zoom in with the mouse wheel." (pcase-let ((`(,x . ,y) (posn-x-y (event-start last-input-event)))) (when (< osm--zoom (osm--server-property :max-zoom)) (osm--move (/ (- x osm--wx) 2) (/ (- y osm--wy) 2)) (osm-zoom-in)))) (defun osm--zoom-out-wheel (_n) "Zoom out with the mouse wheel." (pcase-let ((`(,x . ,y) (posn-x-y (event-start last-input-event)))) (when (> osm--zoom (osm--server-property :min-zoom)) (osm--move (- osm--wx x) (- osm--wy y)) (osm-zoom-out)))) (defun osm-center () "Center to location of selected pin." (interactive nil osm-mode) (osm--barf-unless-osm) (pcase osm--pin (`(,lat ,lon ,_id ,name) (setq osm--lat lat osm--lon lon) (message "%s" name) (osm--update)))) (defun osm--haversine (lat1 lon1 lat2 lon2) "Compute distance between LAT1/LON1 and LAT2/LON2 in km." ;; https://en.wikipedia.org/wiki/Haversine_formula (let* ((rad (/ float-pi 180)) (y (sin (* 0.5 rad (- lat2 lat1)))) (x (sin (* 0.5 rad (- lon2 lon1)))) (h (+ (* x x) (* (cos (* rad lat1)) (cos (* rad lat2)) y y)))) (* 2 6371 (atan (sqrt h) (sqrt (- 1 h)))))) (defun osm-mouse-track (event) "Set track pin at location of the click EVENT." (declare (completion ignore)) (interactive "@e") (pcase osm--pin ((and (guard (not osm--track)) `(,lat ,lon ,_id ,_name)) (push (list lat lon "WP1") osm--track))) (osm--set-pin-event event 'osm-track (format "WP%s" (1+ (length osm--track))) 'quiet) (pcase-let ((`(,lat ,lon ,_id ,name) osm--pin)) (push (list lat lon name) osm--track)) (osm--revert) (osm--track-length)) (defun osm--track-length () "Echo track length." (when (cdr osm--track) (pcase-let* ((len1 0) (len2 0) (p osm--track) (`(,sel-lat ,sel-lon ,_ ,sel-name) osm--pin)) (while (and (cdr p) (not (and (equal (caar p) sel-lat) (equal (cadar p) sel-lon)))) (cl-incf len2 (osm--haversine (caar p) (cadar p) (caadr p) (cadadr p))) (pop p)) (while (cdr p) (cl-incf len1 (osm--haversine (caar p) (cadar p) (caadr p) (cadadr p))) (pop p)) (message "%s way points, length %.2fkm, %s" (length osm--track) (+ len1 len2) (if (or (= len1 0) (= len2 0)) sel-name (format "%.2fkm → %s → %.2fkm" len1 sel-name len2)))))) (defun osm--pin-at (event &optional type) "Get pin of TYPE at EVENT." (let* ((xy (posn-x-y (event-start event))) (x (+ (osm--x0) (car xy))) (y (+ (osm--y0) (cdr xy))) (min most-positive-fixnum) found) (dolist (pin (car (osm--get-overlays (/ x 256) (/ y 256)))) (pcase-let ((`(,p ,q ,_lat ,_lon ,id ,_name) pin)) (when (or (not type) (eq type id)) (let ((d (+ (* (- p x) (- p x)) (* (- q y) (- q y))))) (when (and (>= q y) (< q (+ y 50)) (>= p (- x 20)) (< p (+ x 20)) (< d min)) (setq min d found pin)))))) (cddr found))) (defun osm-mouse-pin (event) "Create location pin at the click EVENT." (declare (completion ignore)) (interactive "@e") (osm--set-pin-event event) (osm--update)) (defun osm-mouse-select (event) "Select pin at position of click EVENT." (declare (completion ignore)) (interactive "@e") (when (memq (event-basic-type event) '(mouse-1 mouse-2 mouse-3)) (pcase (osm--pin-at event) (`(,lat ,lon ,id ,name) (osm--set-pin id lat lon name (eq id 'osm-track)) (when (eq id 'osm-track) (osm--track-length)) (osm--update))))) (defun osm-zoom-in (&optional n) "Zoom N times into the map." (interactive "p" osm-mode) (osm--barf-unless-osm) (setq osm--zoom (max (osm--server-property :min-zoom) (min (osm--server-property :max-zoom) (+ osm--zoom (or n 1))))) (osm--update)) (defun osm-zoom-out (&optional n) "Zoom N times out of the map." (interactive "p" osm-mode) (osm-zoom-in (- (or n 1)))) (defun osm--move (dx dy) "Move by DX/DY." (osm--barf-unless-osm) (setq osm--lon (osm--x-to-lon (+ (osm--x) dx) osm--zoom) osm--lat (osm--y-to-lat (+ (osm--y) dy) osm--zoom))) (defun osm-right (&optional n) "Move N small steps to the right." (interactive "p" osm-mode) (osm--move (* (or n 1) osm-small-step) 0) (osm--update)) (defun osm-down (&optional n) "Move N small steps down." (interactive "p" osm-mode) (osm--move 0 (* (or n 1) osm-small-step)) (osm--update)) (defun osm-up (&optional n) "Move N small steps up." (interactive "p" osm-mode) (osm-down (- (or n 1)))) (defun osm-left (&optional n) "Move N small steps to the left." (interactive "p" osm-mode) (osm-right (- (or n 1)))) (defun osm-right-right (&optional n) "Move N large steps to the right." (interactive "p" osm-mode) (osm--move (* (or n 1) osm-large-step) 0) (osm--update)) (defun osm-down-down (&optional n) "Move N large steps down." (interactive "p" osm-mode) (osm--move 0 (* (or n 1) osm-large-step)) (osm--update)) (defun osm-up-up (&optional n) "Move N large steps up." (interactive "p" osm-mode) (osm-down-down (- (or n 1)))) (defun osm-left-left (&optional n) "Move N large steps to the left." (interactive "p" osm-mode) (osm-right-right (- (or n 1)))) (defun osm--purge-directory () "Clean tile directory." (when (and (integerp osm-max-age) (> (- (float-time) osm--purge-directory) (* 60 60 24))) (setq osm--purge-directory (float-time)) (run-with-idle-timer 30 nil (lambda () (dolist (dir (directory-files osm-tile-directory t "\\`[^.]+\\'" t)) (dolist (file (directory-files dir t "\\.\\(?:png\\|jpe?g\\)\\(?:\\.tmp\\)?\\'" t)) (when (> (float-time (time-since (file-attribute-modification-time (file-attributes file)))) (* 60 60 24 osm-max-age)) (delete-file file))) (when (directory-empty-p dir) (ignore-errors (delete-directory dir)))))))) (defun osm--check-libraries () "Check that Emacs is compiled with the necessary libraries." (let (req) (unless (display-graphic-p) (push "graphical display" req)) (dolist (type '(svg jpeg png)) (unless (image-type-available-p type) (push (format "%s support" type) req))) (unless (libxml-available-p) (push "libxml" req)) (unless (json-available-p) (push "libjansson" req)) (when req (error "Osm: Please compile Emacs with the required libraries, %s needed to proceed" (string-join req ", "))))) (define-derived-mode osm-mode special-mode "Osm" "OpenStreetMap viewer mode." :interactive nil :abbrev-table nil :syntax-table nil (osm--check-libraries) (setq-local osm-server osm-server line-spacing nil cursor-type nil cursor-in-non-selected-windows nil left-fringe-width 1 right-fringe-width 1 left-margin-width 0 right-margin-width 0 truncate-lines t show-trailing-whitespace nil display-line-numbers nil buffer-read-only t fringe-indicator-alist '((truncation . nil)) revert-buffer-function #'osm--revert mode-line-process '(:eval (osm--download-queue-info)) mode-line-position nil mode-line-modified nil mode-line-mule-info nil mode-line-remote nil default-directory (expand-file-name "~/") eldoc-documentation-functions nil mouse-wheel-progressive-speed nil mwheel-scroll-up-function #'osm--zoom-out-wheel mwheel-scroll-down-function #'osm--zoom-in-wheel mwheel-scroll-left-function #'osm--zoom-out-wheel mwheel-scroll-right-function #'osm--zoom-in-wheel bookmark-make-record-function #'osm--bookmark-record-default imenu-create-index-function #'osm--imenu-index) (when (boundp 'mwheel-coalesce-scroll-events) (setq-local mwheel-coalesce-scroll-events t)) (when (boundp 'pixel-scroll-precision-mode) (setq-local pixel-scroll-precision-mode nil)) (add-hook 'change-major-mode-hook #'osm--barf-change-mode nil 'local) (add-hook 'write-contents-functions #'osm--barf-write nil 'local) (add-hook 'window-size-change-functions (let ((buf (current-buffer))) (lambda (_) (with-current-buffer buf (osm--update)))) nil 'local)) (defun osm--barf-write () "Barf for write operation." (set-buffer-modified-p nil) (setq buffer-read-only t) (set-visited-file-name nil) (error "Writing the buffer to a file is not supported")) (defun osm--barf-change-mode () "Barf for change mode operation." (error "Changing the major mode is not supported")) (defun osm--barf-unless-osm () "Barf if not an `osm-mode' buffer." (unless (eq major-mode #'osm-mode) (error "Not an `osm-mode' buffer"))) (defun osm--each-pin (fun) "Call FUN for each pin on the map." (pcase osm-home (`(,lat ,lon ,zoom) (funcall fun 'osm-home lat lon zoom "Home"))) (bookmark-maybe-load-default-file) (cl-loop for bm in bookmark-alist if (eq (bookmark-prop-get bm 'handler) #'osm-bookmark-jump) do (pcase-let ((`(,lat ,lon ,zoom) (bookmark-prop-get bm 'coordinates))) (funcall fun 'osm-bookmark lat lon zoom (car bm)))) (dolist (file osm--gpx-files) (when-let ((start (caaadr file))) (funcall fun 'osm-gpx-track (car start) (cdr start) 10 (car file))) (cl-loop for (lat lon name) in (cddr file) do (funcall fun 'osm-gpx-poi lat lon 15 name))) (cl-loop for (lat lon name) in osm--track do (funcall fun 'osm-track lat lon 15 name))) (defun osm--pin-inside-p (x y lat lon) "Return non-nil if pin at LAT/LON is inside tile X/Y." (let ((p (/ (osm--lon-to-x lon osm--zoom) 256.0)) (q (/ (osm--lat-to-y lat osm--zoom) 256.0))) (and (>= p (- x 0.125)) (< p (+ x 1.125)) (>= q y) (< q (+ y 1.25))))) (defun osm--add-pin (pins id lat lon _zoom name) "Add pin at LAT/LON with NAME and ID to the PINS hash table." (let* ((x (osm--lon-to-x lon osm--zoom)) (y (osm--lat-to-y lat osm--zoom)) (x0 (/ x 256)) (y0 (/ y 256)) (pin (list x y lat lon id name))) (push pin (gethash (cons x0 y0) pins)) (cl-loop for i from -1 to 1 do (cl-loop for j from -1 to 0 do (let ((x1 (/ (+ x (* 32 i)) 256)) (y1 (/ (+ y (* 64 j)) 256))) (unless (and (= x0 x1) (= y0 y1)) (push pin (gethash (cons x1 y1) pins)))))))) ;; TODO: The Bresenham algorithm used here to add the line segments to the tiles ;; has the issue that lines which go along a tile border may be drawn only ;; partially. Use a more precise algorithm instead. (defun osm--add-track (tracks seg) "Add track segment SEG to TRACKS hash table." (when seg (let ((p0 (cons (osm--lon-to-x (or (car-safe (cdar seg)) (cdar seg)) osm--zoom) (osm--lat-to-y (caar seg) osm--zoom)))) (dolist (pt (cdr seg)) (let* ((px1 (cdr pt)) (px1 (osm--lon-to-x (if (consp px1) (car px1) px1) osm--zoom)) (py1 (osm--lat-to-y (car pt) osm--zoom)) (pdx (- px1 (car p0))) (pdy (- py1 (cdr p0)))) ;; Ignore point if too close to last point (unless (< (+ (* pdx pdx) (* pdy pdy)) 50) (let* ((p1 (cons px1 py1)) (line (cons p0 p1)) (x0 (/ (car p0) 256)) (y0 (/ (cdr p0) 256)) (x1 (/ px1 256)) (y1 (/ py1 256)) (sx (if (< x0 x1) 1 -1)) (sy (if (< y0 y1) 1 -1)) (dx (* sx (- x1 x0))) (dy (* sy (- y0 y1))) (err (+ dx dy))) ;; Bresenham (while (let ((ey (> (* err 2) dy)) (ex (< (* err 2) dx))) (push line (gethash (cons x0 y0) tracks)) (unless (and (= x0 x1) (= y0 y1)) (when (and ey ex) (push line (gethash (cons x0 (+ y0 sy)) tracks)) (push line (gethash (cons (+ x0 sx) y0) tracks))) (when ey (cl-incf err dy) (cl-incf x0 sx)) (when ex (cl-incf err dx) (cl-incf y0 sy)) t))) (setq p0 p1)))))))) (defun osm--get-overlays (x y) "Compute overlays and return the overlays in tile X/Y." (unless (eq (car osm--overlays) osm--zoom) ;; TODO: Do not compute overlays for the entire map, only for a reasonable ;; view port around the current center, depending on the size of the ;; window. Otherwise the spatial hash map for the tracks gets very large if ;; a line segment spans many tiles. (let ((pins (make-hash-table :test #'equal)) (tracks (make-hash-table :test #'equal))) (osm--each-pin (apply-partially #'osm--add-pin pins)) (dolist (file osm--gpx-files) (dolist (seg (cadr file)) (osm--add-track tracks seg))) (osm--add-track tracks osm--track) (setq osm--overlays (list osm--zoom pins tracks)))) (let ((pins (gethash (cons x y) (cadr osm--overlays))) (tracks (gethash (cons x y) (caddr osm--overlays)))) (and (or pins tracks) (cons pins tracks)))) (autoload 'svg--image-data "svg") (defun osm--draw-tile (x y tpin) "Make tile at X/Y from FILE. TPIN is an optional pin." (let ((file (osm--tile-file x y osm--zoom)) overlays) (when (file-exists-p file) (if (or (setq overlays (osm--get-overlays x y)) (eq osm-tile-border t) tpin) (let* ((areas nil) (x0 (* 256 x)) (y0 (* 256 y)) (svg-pin (lambda (pin) (pcase-let* ((`(,p ,q ,_lat ,_lon ,id ,name) pin) (bg (cdr (assq id osm-pin-colors)))) (setq p (- p x0) q (- q y0)) (push `((poly . [,p ,q ,(- p 20) ,(- q 40) ,p ,(- q 50) ,(+ p 20) ,(- q 40) ]) ,id (help-echo ,(truncate-string-to-width name 40 0 nil t))) areas) ;; https://commons.wikimedia.org/wiki/File:Simpleicons_Places_map-marker-1.svg (format " " bg p q)))) (svg-text (concat " " (when-let (track (cdr overlays)) (format "" osm-track-style (let (last) (mapconcat (pcase-lambda (`(,beg . ,end)) (prog1 (if (equal beg last) (format "L%s %s" (- (car end) x0) (- (cdr end) y0)) (format "M%s %sL%s %s" (- (car beg) x0) (- (cdr beg) y0) (- (car end) x0) (- (cdr end) y0))) (setq last end))) track "")))) (pcase-exhaustive osm-tile-border ('nil nil) ('debug "") ('t "")) (mapconcat svg-pin (car overlays) "") (and tpin (funcall svg-pin tpin)) ""))) (list 'image :width 256 :height 256 :type 'svg :base-uri file :data svg-text :map areas)) (list 'image :width 256 :height 256 :file file :type (if (member (file-name-extension file) '("jpg" "jpeg")) 'jpeg 'png)))))) (defun osm--get-tile (x y) "Get tile at X/Y." (pcase osm--pin ((and `(,lat ,lon ,_id ,name) (guard (osm--pin-inside-p x y lat lon))) (osm--draw-tile x y (list (osm--lon-to-x lon osm--zoom) (osm--lat-to-y lat osm--zoom) lat lon 'osm-selected name))) (_ (let* ((key `(,osm-server ,osm--zoom ,x . ,y)) (tile (and osm--tile-cache (gethash key osm--tile-cache)))) (if tile (progn (setcar tile osm--tile-age) (cdr tile)) (setq tile (osm--draw-tile x y nil)) (when tile (when osm-max-tiles (unless osm--tile-cache (setq osm--tile-cache (make-hash-table :test #'equal :size osm-max-tiles))) (puthash key (cons osm--tile-age tile) osm--tile-cache)) tile)))))) (defun osm--display-tile (x y tile) "Display TILE at X/Y." (let ((i (- x (/ (osm--x0) 256))) (j (- y (/ (osm--y0) 256)))) (when (and (>= i 0) (< i osm--nx) (>= j 0) (< j osm--ny)) (let* ((mx (if (= 0 i) (mod (osm--x0) 256) 0)) (my (if (= 0 j) (mod (osm--y0) 256) 0)) (pos (+ (point-min) (* j (1+ osm--nx)) i))) (unless tile (setq tile (cons 'image osm--placeholder))) (with-silent-modifications (put-text-property pos (1+ pos) 'display (if (or (/= 0 mx) (/= 0 my)) `((slice ,mx ,my ,(- 256 mx) ,(- 256 my)) ,tile) tile))))))) ;;;###autoload (defun osm-home () "Go to home coordinates." (interactive) (pcase osm-home (`(,lat ,lon ,zoom) (osm--goto lat lon zoom nil 'osm-home "Home")))) (defun osm--download-queue-info () "Return queue info string." (when osm--download-processes (format "[%s/%s/%s]" (cl-loop for (_ . p) in osm--download-processes sum (length p)) (length osm--download-active) (length osm--download-queue)))) (defun osm--revert (&rest _) "Revert osm buffers." (clear-image-cache t) ;; Make absolutely sure that the tiles are redrawn. (setq osm--tile-cache nil) (osm--each (setq osm--overlays nil) (osm--update))) (defun osm--header-button (text action) "Format header line button with TEXT and ACTION." (propertize text 'keymap (define-keymap " " (if (commandp action) (lambda () (interactive "@") (call-interactively action)) action)) 'face '(:box (:line-width -2 :style released-button)) 'mouse-face '(:box (:line-width -2 :style pressed-button)))) (defun osm--update-header () "Update header line." (let* ((meter-per-pixel (/ (* 156543.03 (cos (/ osm--lat (/ 180.0 float-pi)))) (expt 2 osm--zoom))) (server (osm--server-property :name)) (meter 1) (idx 0) (factor '(2 2.5 2)) (sep #(" " 0 1 (display (space :width (1)))))) (while (and (< idx 20) (< (/ (* meter (nth (mod idx 3) factor)) meter-per-pixel) 150)) (setq meter (round (* meter (nth (mod idx 3) factor)))) (cl-incf idx)) (setq-local header-line-format (list (osm--header-button " ☰ " (osm--menu-item osm-mode-menu)) sep (osm--header-button (format " %s " server) (osm--menu-item #'osm--server-menu)) sep (osm--header-button " + " #'osm-zoom-in) sep (osm--header-button " - " #'osm-zoom-out) (format " Z%-2d " osm--zoom) #(" " 0 1 (display (space :align-to (- center 15)))) (format #(" %7.2f° %7.2f°" 0 14 (face bold)) osm--lat osm--lon) #(" " 0 1 (display (space :align-to (- right 20)))) (format "%3s " (if (>= meter 1000) (/ meter 1000) meter)) (if (>= meter 1000) "km " "m ") #(" " 0 1 (face (:inverse-video t) display (space :width (3)))) (propertize " " 'face '(:strike-through t) 'display `(space :width (,(floor (/ meter meter-per-pixel))))) #(" " 0 1 (face (:inverse-video t) display (space :width (3)))))))) (defun osm--update () "Update map display." (osm--barf-unless-osm) (osm--purge-tile-cache) (osm--purge-directory) (osm--rename-buffer) (osm--update-sizes) (osm--update-header) (osm--update-buffer) (osm--update-copyright) (osm--process-download-queue)) (defun osm--update-sizes () "Update window sizes." (let* ((windows (or (get-buffer-window-list) (list (frame-root-window)))) (win-width (cl-loop for w in windows maximize (window-pixel-width w))) (win-height (cl-loop for w in windows maximize (window-pixel-height w)))) (setq osm--wx (/ win-width 2) osm--wy (/ win-height 2) osm--nx (1+ (ceiling win-width 256)) osm--ny (1+ (ceiling win-height 256))))) (defun osm--copyright-link (text url) "Format link with TEXT to URL." (propertize text 'face 'button 'mouse-face 'highlight 'help-echo (format "Go to %s" url) 'keymap (define-keymap " " (lambda () (interactive) (browse-url url))))) (defun osm--update-copyright () "Update copyright info." (let ((copyright (and osm-copyright (osm--server-property :copyright)))) (if (not copyright) (when (eq 'osm-copyright (car-safe tab-line-format)) (kill-local-variable 'tab-line-format)) (setq copyright (replace-regexp-in-string "{\\(.*?\\)|\\(.*?\\)}" (lambda (str) (osm--copyright-link (match-string 1 str) (match-string 2 str))) (concat " " (string-join (ensure-list copyright) " | ") #(" " 0 1 (display (space :align-to (+ 42 right))))))) (add-face-text-property 0 (length copyright) '(:inherit (header-line variable-pitch) :height 0.65) t copyright) (setq-local tab-line-format (list 'osm-copyright copyright))))) (defun osm--update-buffer () "Update buffer display." (with-silent-modifications (erase-buffer) (dotimes (_j osm--ny) (insert (make-string osm--nx ?\s) "\n")) (put-text-property (point-min) (point-max) 'pointer 'arrow) (goto-char (point-min)) (let ((tx (/ (osm--x0) 256)) (ty (/ (osm--y0) 256))) (dotimes (j osm--ny) (dotimes (i osm--nx) (let* ((x (+ i tx)) (y (+ j ty)) (tile (osm--get-tile x y))) (osm--display-tile x y tile) (unless tile (osm--enqueue-download x y)))))))) (defun osm--process-download-queue () "Process the download queue." (setq osm--download-queue (sort (cl-loop with tx = (/ (osm--x0) 256) with ty = (/ (osm--y0) 256) for job in osm--download-queue for (_server zoom x y) = job if (and (= zoom osm--zoom) (>= x tx) (< x (+ tx osm--nx)) (>= y ty) (< y (+ ty osm--ny))) collect job) (let ((tx (/ (osm--x) 256)) (ty (/ (osm--y) 256))) (pcase-lambda (`(,_s1 ,_z1 ,x1 ,y1) `(,_s2 ,_z2 ,x2 ,y2)) (setq x1 (- x1 tx) y1 (- y1 ty) x2 (- x2 tx) y2 (- y2 ty)) (< (+ (* x1 x1) (* y1 y1)) (+ (* x2 x2) (* y2 y2))))))) (osm--download)) (defun osm--purge-tile-cache () "Purge old tiles from the tile cache." (cl-incf osm--tile-age) (when (and osm--tile-cache (> (hash-table-count osm--tile-cache) osm-max-tiles)) (let (items) (maphash (lambda (k v) (push (list (car v) (cdr v) k) items)) osm--tile-cache) (setq items (sort items #'car-less-than-car)) (cl-loop repeat (- (hash-table-count osm--tile-cache) osm-max-tiles) for (_age tile key) in items do (image-flush tile t) (remhash key osm--tile-cache))))) (defun osm--bookmark-record-default () "Make osm bookmark record." (osm--bookmark-record (osm--bookmark-name osm--lat osm--lon nil) osm--lat osm--lon nil)) (defun osm--bookmark-record (name lat lon loc) "Make osm bookmark record with NAME and LOC description at LAT/LON." (setq bookmark-current-bookmark nil) ;; Reset bookmark to use new name `(,name (location . ,(osm--location-name lat lon loc 6)) (coordinates ,lat ,lon ,osm--zoom) (server . ,osm-server) (handler . ,#'osm-bookmark-jump))) (defun osm--org-link-props () "Return Org link properties." (pcase-let* ((`(,lat ,lon ,loc) (osm--fetch-location-data "New Org Link")) (name (osm--location-name lat lon loc 2))) (list :type "geo" :description (if (eq osm-server (default-value 'osm-server)) (string-remove-suffix (concat " " (osm--server-property :name)) name) name) :link (format "geo:%.6f,%.6f;z=%s%s" lat lon osm--zoom (if (eq osm-server (default-value 'osm-server)) "" (format ";s=%s" osm-server)))))) (defun osm--rename-buffer () "Rename current buffer." (setq list-buffers-directory (osm--location-name osm--lat osm--lon nil 6)) (rename-buffer (format "*osm: %s*" (osm--location-name osm--lat osm--lon nil 2)) 'unique)) (defun osm--location-name (lat lon loc prec) "Format location string LAT/LON with optional LOC description. The coordinates are formatted with precision PREC." (format (format "%%s%%.%df° %%.%df° Z%%s %%s" prec prec) (if loc (concat loc ", ") "") lat lon osm--zoom (osm--server-property :name))) (defun osm--bookmark-name (lat lon loc) "Return bookmark name for LAT/LON/LOC." (concat "osm: " (osm--location-name lat lon loc 2))) (defun osm--goto (lat lon zoom server id name) "Go to LAT/LON/ZOOM, change SERVER. Optionally place pin with ID and NAME." ;; Server not found (when (and server (not (assq server osm-server-list))) (setq server nil)) (with-current-buffer (or (and (eq major-mode #'osm-mode) (current-buffer)) (let ((def-server (or server osm-server)) (def-lat (or lat (nth 0 osm-home))) (def-lon (or lon (nth 1 osm-home))) (def-zoom (or zoom (nth 2 osm-home)))) ;; Search for existing buffer (cl-loop for buf in (buffer-list) thereis (and (equal (buffer-local-value 'major-mode buf) #'osm-mode) (equal (buffer-local-value 'osm-server buf) def-server) (equal (buffer-local-value 'osm--zoom buf) def-zoom) (equal (buffer-local-value 'osm--lat buf) def-lat) (equal (buffer-local-value 'osm--lon buf) def-lon) buf))) (generate-new-buffer "*osm*")) (unless (eq major-mode #'osm-mode) (osm-mode)) (when (and server (not (eq osm-server server))) (setq-local osm-server server osm--download-queue nil)) (when (or (not (and osm--lon osm--lat)) lat) (setq osm--lat (or lat (nth 0 osm-home)) osm--lon (or lon (nth 1 osm-home)) osm--zoom (or zoom (nth 2 osm-home))) (when id (osm--set-pin id osm--lat osm--lon name))) (prog1 (pop-to-buffer (current-buffer)) (osm--update)))) (defun osm--set-pin (id lat lon name &optional quiet) "Set pin at LAT/LON with ID and NAME. Print NAME if not QUIET." (setq name (or name (format "Location %.6f° %.6f°" lat lon))) (setq osm--pin (list lat lon (or id 'osm-selected) name)) (unless quiet (message "%s" name))) (defun osm--set-pin-event (event &optional id name quiet) "Set selection pin with ID and NAME at location of EVENT. Print NAME if not QUIET." (pcase-let ((`(,x . ,y) (posn-x-y (event-start event)))) (osm--set-pin id (osm--y-to-lat (+ (osm--y0) y) osm--zoom) (osm--x-to-lon (+ (osm--x0) x) osm--zoom) name quiet))) ;;;###autoload (defun osm-goto (lat lon zoom) "Go to LAT/LON/ZOOM." (interactive (pcase-let ((`(,lat ,lon ,zoom) (mapcar #'string-to-number (split-string (read-string "Lat Lon (Zoom): ") nil t)))) (setq zoom (or zoom osm--zoom 11)) (unless (and (numberp lat) (numberp lon) (numberp zoom)) (error "Invalid coordinate")) (list lat lon zoom))) (osm--goto lat lon zoom nil 'osm-selected nil) nil) ;;;###autoload (defun osm (&rest link) "Go to LINK. When called interactively, call the function `osm-home'." (interactive (list 'home)) (pcase link ('(home) (osm-home)) (`(,lat ,lon ,zoom . ,server) (setq server (car server)) (unless (and server (symbolp server)) (setq server nil)) ;; Ignore comment (osm--goto lat lon zoom server 'osm-selected "Elisp Link")) ((and `(,url . ,_) (guard (stringp url))) (if (string-match "\\`geo:\\([0-9.-]+\\),\\([0-9.-]+\\)\\(?:,[0-9.-]+\\)?\\(;.+\\'\\|\\'\\)" url) (let* ((lat (string-to-number (match-string 1 url))) (lon (string-to-number (match-string 2 url))) (args (url-parse-args (match-string 3 url) "")) (zoom (cdr (assoc "z" args))) (server (cdr (assoc "s" args)))) (osm--goto lat lon (and zoom (string-to-number zoom)) (and server (intern-soft server)) 'osm-selected "Geo Link")) (osm-search (string-remove-prefix "geo:" url)))) (_ (error "Invalid osm link")))) ;;;###autoload (defun osm-bookmark-jump (bm) "Jump to osm bookmark BM." (interactive (list (osm--bookmark-read))) (pcase-let ((`(,lat ,lon ,zoom) (bookmark-prop-get bm 'coordinates))) (set-buffer (osm--goto lat lon zoom (bookmark-prop-get bm 'server) 'osm-bookmark (car bm))))) (put 'osm-bookmark-jump 'bookmark-handler-type "Osm") ;;;###autoload (defun osm-bookmark-delete (bm) "Delete osm bookmark BM." (interactive (list (osm--bookmark-read))) (when (y-or-n-p (format "Delete bookmark `%s'? " bm)) (bookmark-delete bm) (setq osm--pin nil) (osm--revert))) ;;;###autoload (defun osm-bookmark-rename (old-name) "Rename osm bookmark OLD-NAME." (interactive (list (car (osm--bookmark-read)))) (let ((new-name (read-from-minibuffer "New name: " old-name nil nil 'bookmark-history old-name))) (when osm--pin (setf (cadddr osm--pin) new-name)) (bookmark-rename old-name new-name) (osm--revert))) (defun osm--bookmark-read () "Read bookmark name." (bookmark-maybe-load-default-file) (or (assoc (pcase osm--pin (`(,_lat ,_lon osm-bookmark ,name) name) (_ (completing-read "Bookmark: " (or (cl-loop for bm in bookmark-alist if (eq (bookmark-prop-get bm 'handler) #'osm-bookmark-jump) collect (car bm)) (error "No bookmarks found")) nil t nil 'bookmark-history))) bookmark-alist) (error "No bookmark selected"))) (defun osm-bookmark-set () "Create osm bookmark." (interactive nil osm-mode) (osm--barf-unless-osm) (unwind-protect (pcase-let* ((`(,lat ,lon ,loc) (osm--fetch-location-data "New Bookmark")) (def (osm--bookmark-name lat lon loc)) (name (read-from-minibuffer "Bookmark name: " def nil nil 'bookmark-history def)) (bookmark-make-record-function (lambda () (osm--bookmark-record name lat lon loc)))) (bookmark-set name) (message "Stored bookmark: %s" name) (setf (caddr osm--pin) 'osm-bookmark)) (osm--revert))) (defun osm--fetch-location-data (name) "Fetch location info for NAME." (when (mouse-event-p last-input-event) (osm--set-pin-event last-input-event 'osm-selected name)) (let ((lat (or (car osm--pin) osm--lat)) (lon (or (cadr osm--pin) osm--lon))) (osm--set-pin 'osm-selected lat lon name 'quiet) (message "%s: Fetching name of %.2f° %.2f° from %s..." name lat lon osm-search-server) ;; Redisplay before slow fetching (osm--update) (redisplay) (list lat lon (ignore-errors (alist-get 'display_name (osm--fetch-json (format "%s/reverse?format=json&accept-language=%s&zoom=%s&lat=%s&lon=%s" osm-search-server osm-search-language (min 18 (max 3 osm--zoom)) lat lon))))))) (defun osm--track-index () "Return index of selected track way point." (cl-loop for idx from 0 for (lat lon _) in osm--track if (and (equal lat (car osm--pin)) (equal lon (cadr osm--pin))) return idx)) (defun osm--track-delete () "Delete track way point." (when-let ((idx (osm--track-index))) ;; Delete pin (cl-callf2 delq (nth idx osm--track) osm--track) (setq osm--pin nil idx (min idx (1- (length osm--track)))) ;; Select next pin (pcase (nth idx osm--track) (`(,lat ,lon ,name) (osm--set-pin 'osm-track lat lon name 'quiet))) ;; Rename pins after deletion (cl-loop for idx from (length osm--track) downto 1 for pt in osm--track if (string-match-p "\\`WP[0-9]+\\'" (caddr pt)) do (setf (caddr pt) (format "WP%s" idx))) (osm--track-length) (osm--revert))) (defun osm--track-rename () "Rename track way point." (when-let ((pt (nth (osm--track-index) osm--track)) (old-name (caddr pt)) (new-name (read-from-minibuffer "New name: " old-name nil nil nil old-name))) (setf (caddr pt) new-name (cadddr osm--pin) new-name) (osm--revert))) (defun osm-delete () "Delete selected pin (bookmark or way point)." (interactive nil osm-mode) (osm--barf-unless-osm) (pcase (caddr osm--pin) ('nil nil) ('osm-bookmark (osm-bookmark-delete (cadddr osm--pin))) ('osm-track (osm--track-delete)) (_ (setq osm--pin nil) (osm--update)))) (defun osm-rename () "Rename selected pin (bookmark or way point)." (interactive nil osm-mode) (osm--barf-unless-osm) (pcase (caddr osm--pin) ('osm-bookmark (osm-bookmark-rename (cadddr osm--pin))) ('osm-track (osm--track-rename)))) ;;;###autoload (defun osm-jump () "Jump to named pin." (interactive) (let (pins) (osm--each-pin (lambda (id lat lon zoom name) (push (list name (capitalize (substring (symbol-name id) 4)) id lat lon zoom) pins))) (pcase (assoc (completing-read "Jump: " (osm--table-with-metadata pins `((group-function . ,(lambda (pin transform) (if transform pin (cadr (assoc pin pins))))))) nil t nil 'osm--jump-history) pins) (`(,name ,_group ,id ,lat ,lon ,zoom) (osm--goto lat lon zoom nil id name)) (_ (user-error "No pin selected"))))) (defun osm--imenu-index () "Create Imenu index." (let (index) (osm--each-pin (lambda (id lat lon zoom name) (push (list name (vector lat lon zoom) #'osm--imenu-goto) (alist-get (capitalize (substring (symbol-name id) 4)) index nil nil #'equal)))) (sort index (lambda (x y) (string< (car x) (car y)))))) (defun osm--imenu-goto (_name pos) "Goto Imenu POS." (osm--goto (aref pos 0) (aref pos 1) (aref pos 2) nil nil nil)) (defun osm--fetch-json (url) "Get json from URL." (osm--check-libraries) (with-temp-buffer (let* ((default-process-coding-system '(utf-8-unix . utf-8-unix)) (status (apply #'call-process "curl" nil (current-buffer) nil `(,@(split-string-and-unquote osm-curl-options) ,url)))) (unless (eq status 0) (error "Fetching %s exited with status %s" url status))) (goto-char (point-min)) (json-parse-buffer :array-type 'list :object-type 'alist))) (defun osm--search (needle) "Globally search for NEEDLE and return the list of results." (message "Contacting %s" osm-search-server) (mapcar (lambda (x) (let ((lat (string-to-number (alist-get 'lat x))) (lon (string-to-number (alist-get 'lon x)))) `(,(format "%s (%.6f° %.6f°)" (alist-get 'display_name x) lat lon) ,lat ,lon ,@(mapcar #'string-to-number (alist-get 'boundingbox x))))) (osm--fetch-json (format "%s/search?format=json&accept-language=%s&q=%s" osm-search-server osm-search-language (url-encode-url needle))))) ;;;###autoload (defun osm-search (needle &optional lucky) "Globally search for NEEDLE on `osm-search-server' and display the map. If the prefix argument LUCKY is non-nil take the first result and jump there. See `osm-search-server' and `osm-search-language' for customization." (interactive (list (minibuffer-with-setup-hook (lambda () (when (eq (keymap-local-lookup "SPC") #'minibuffer-complete-word) ;; Override dreaded `minibuffer-complete-word' for default ;; completion. When will this keybinding finally get removed from ;; default completion? (use-local-map (make-composed-keymap (define-keymap "SPC" nil) (current-local-map))))) (completing-read "Location: " (osm--table-with-metadata osm--search-history '((display-sort-function . identity) (cycle-sort-function . identity))) nil nil nil 'osm--search-history)) current-prefix-arg)) ;; TODO: Add search bounded to current viewbox, bounded=1, viewbox=x1,y1,x2,y2 (let* ((results (or (osm--search needle) (error "No results for `%s'" needle))) (selected (or (and (or lucky (not (cdr results))) (car results)) (assoc (minibuffer-with-setup-hook (lambda () ;; TODO Use `eager-display' on Emacs 31 (when (and (eq completing-read-function #'completing-read-default) (not (bound-and-true-p vertico-mode)) (not (bound-and-true-p icomplete-mode))) (let ((message-log-max nil) (inhibit-message t)) (minibuffer-completion-help)))) (completing-read (format "Matches for '%s': " needle) (osm--table-with-metadata results '((display-sort-function . identity) (cycle-sort-function . identity))) nil t nil t)) results) (error "No selection")))) (osm--goto (cadr selected) (caddr selected) (apply #'osm--boundingbox-to-zoom (cdddr selected)) nil 'osm-selected (car selected)))) ;; TODO: Use `completion-table-with-metadata' (defun osm--table-with-metadata (table metadata) "Return new completion TABLE with METADATA." (lambda (string pred action) (if (eq action 'metadata) `(metadata . ,metadata) (complete-with-action action table string pred)))) ;;;###autoload (defun osm-gpx-show (file) "Show the tracks of gpx FILE in an `osm-mode' buffer." (interactive "fGPX file: ") (osm--check-libraries) (let ((dom (with-temp-buffer (insert-file-contents file) (libxml-parse-xml-region (point-min) (point-max)))) (min-lat 90) (max-lat -90) (min-lon 180) (max-lon -180)) (unless (eq 'gpx (dom-tag dom)) (setq dom (dom-child-by-tag dom 'gpx))) (unless (and dom (eq 'gpx (dom-tag dom))) (error "Not a GPX file")) (setf (alist-get (abbreviate-file-name file) osm--gpx-files nil nil #'equal) (cons (cl-loop for trk in (dom-children dom) if (eq (dom-tag trk) 'trk) nconc (cl-loop for seg in (dom-children trk) if (eq (dom-tag seg) 'trkseg) collect (cl-loop for pt in (dom-children seg) if (eq (dom-tag pt) 'trkpt) collect (let ((lat (string-to-number (dom-attr pt 'lat))) (lon (string-to-number (dom-attr pt 'lon)))) (setq min-lat (min lat min-lat) max-lat (max lat max-lat) min-lon (min lon min-lon) max-lon (max lon max-lon)) (cons lat lon))))) (cl-loop for pt in (dom-children dom) if (eq (dom-tag pt) 'wpt) collect (let ((lat (string-to-number (dom-attr pt 'lat))) (lon (string-to-number (dom-attr pt 'lon)))) (setq min-lat (min lat min-lat) max-lat (max lat max-lat) min-lon (min lon min-lon) max-lon (max lon max-lon)) (list lat lon (dom-text (dom-child-by-tag pt 'name))))))) (osm--revert) (osm--goto (/ (+ min-lat max-lat) 2) (/ (+ min-lon max-lon) 2) (osm--boundingbox-to-zoom min-lat max-lat min-lon max-lon) nil nil nil))) (defun osm-gpx-hide (file) "Show the tracks of gpx FILE in an `osm-mode' buffer." (interactive (list (completing-read "GPX file: " (or osm--gpx-files (error "No GPX files shown")) nil t nil 'file-name-history))) (cl-callf2 assoc-delete-all file osm--gpx-files) (osm--revert)) (defun osm--server-annotation (cand) "Annotation for server CAND." (when-let ((copyright (osm--server-property :copyright (get-text-property 0 'osm--server cand))) (str (replace-regexp-in-string "{\\(.*?\\)|.*?}" (lambda (str) (match-string 1 str)) (string-join (ensure-list copyright) " | ") copyright))) (concat (propertize " " 'display `(space :align-to (- right ,(length str) 2))) " " str))) (defun osm--server-group (cand transform) "Group function for server CAND with candidate TRANSFORM." (if transform cand (osm--server-property :group (get-text-property 0 'osm--server cand)))) ;;;###autoload (defun osm-server (server) "Select tile SERVER." (interactive (let* ((max-name (cl-loop for (_ . x) in osm-server-list maximize (length (plist-get x :name)))) (fmt (concat (propertize (format "%%-%ds " max-name) 'face 'font-lock-comment-face) " %s")) (servers (mapcar (lambda (x) (propertize (format fmt (plist-get (cdr x) :name) (or (plist-get (cdr x) :description) "")) 'osm--server (car x))) osm-server-list)) (selected (completing-read "Server: " (osm--table-with-metadata servers `((annotation-function . ,(and osm-copyright #'osm--server-annotation)) (group-function . ,#'osm--server-group))) nil t nil 'osm--server-history (format fmt (osm--server-property :name) (or (osm--server-property :description) ""))))) (list (get-text-property 0 'osm--server (or (car (member selected servers)) (error "No server selected")))))) (osm--goto nil nil nil server nil nil)) (defun osm-save-url (&optional arg) "Save coordinates as url in the kill ring. If prefix ARG is given, store url as Elisp expression." (interactive "P" osm-mode) (osm--barf-unless-osm) (pcase-let* ((`(,lat ,lon ,loc) (osm--fetch-location-data "New Link")) (server (and (not (eq osm-server (default-value 'osm-server))) osm-server)) (url (if arg (format "(osm %.6f %.6f %s%s%s)" lat lon osm--zoom (if server (format " '%s" osm-server) "") (if loc (format " %S" loc) "")) (format "geo:%.6f,%.6f;z=%s%s%s" lat lon osm--zoom (if server (format ";s=%s" osm-server) "") (if loc (format " (%s)" loc) ""))))) (kill-new url) (message "Saved in the kill ring: %s" url))) (cl-defun osm-add-server (server &rest properties &key name description group url ext max-connections max-zoom min-zoom download-batch subdomains copyright) "Add SERVER with PROPERTIES to `osm-server-list'. The properties are checked as keyword arguments. See `osm-server-list' for documentation of the keywords." (declare (indent 1)) (ignore name description group url ext max-connections max-zoom min-zoom download-batch subdomains copyright) (dolist (sym '(:name :description :group :url)) (unless (stringp (plist-get properties sym)) (error "Server property %s is required" sym))) (unless (and server (symbolp server)) (error "Server id must be a symbol")) (setf (alist-get server osm-server-list) properties) nil) ;;;###autoload (add-to-list 'browse-url-default-handlers '("\\`geo:" . osm)) ;;;###autoload (eval-after-load 'ol (lambda () (declare-function org-link-set-parameters "ol") (declare-function osm--org-link-props "ext:osm") (org-link-set-parameters "geo" :follow (lambda (link _) (osm (concat "geo:" link))) :store (lambda () (when (eq major-mode 'osm-mode) (apply 'org-link-store-props (osm--org-link-props))))))) (provide 'osm) ;;; osm.el ends here