├── .gitignore ├── .gitmodules ├── LICENSE ├── Makefile ├── README.md ├── native ├── textern.json.in └── textern.py └── webex ├── background.js ├── content.js ├── manifest.json ├── options.css ├── options.html ├── options.js └── shortcut.js /.gitignore: -------------------------------------------------------------------------------- 1 | *.pyc 2 | /native/textern.json 3 | -------------------------------------------------------------------------------- /.gitmodules: -------------------------------------------------------------------------------- 1 | [submodule "native/inotify_simple"] 2 | path = native/inotify_simple 3 | url = https://github.com/chrisjbillington/inotify_simple 4 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) {year} {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | {project} Copyright (C) {year} {fullname} 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | ifneq ($(USER),1) 2 | PREFIX ?= /usr/local 3 | MOZILLA_PREFIX ?= /usr 4 | LIBDIR ?= /usr/lib64 5 | MOZILLA_NATIVE ?= $(LIBDIR)/mozilla/native-messaging-hosts 6 | else 7 | PREFIX ?= $(HOME)/.local 8 | MOZILLA_NATIVE ?= $(HOME)/.mozilla/native-messaging-hosts 9 | endif 10 | 11 | LIBEXEC ?= $(PREFIX)/libexec 12 | 13 | .PHONY: all 14 | all: 15 | @echo "No build step. Available targets:" 16 | @echo "native-install install native app" 17 | @echo "native-uninstall uninstall native app" 18 | @echo "xpi create XPI webex archive" 19 | @echo 20 | @echo "Set USER=1 to target user directories instead." 21 | 22 | # make phony and don't depend on .in file in case $USER changes 23 | .PHONY: native/textern.json 24 | native/textern.json: 25 | sed -e 's|@@NATIVE_PATH@@|$(LIBEXEC)/textern/textern.py|' $@.in > $@ 26 | 27 | .PHONY: native-install 28 | native-install: native/textern.json 29 | @if ! test -f native/inotify_simple/.git; then echo "Missing inotify_simple submodule! Try 'git submodule update --init'."; false; fi 30 | mkdir -p $(DESTDIR)$(MOZILLA_NATIVE) 31 | cp -f native/textern.json $(DESTDIR)$(MOZILLA_NATIVE) 32 | mkdir -p $(DESTDIR)$(LIBEXEC)/textern 33 | cp -rf native/textern.py native/inotify_simple $(DESTDIR)$(LIBEXEC)/textern 34 | 35 | .PHONY: native-uninstall 36 | native-uninstall: 37 | rm -f $(DESTDIR)$(MOZILLA_NATIVE)/textern.json 38 | rm -rf $(DESTDIR)$(LIBEXEC)/textern 39 | 40 | .PHONY: xpi 41 | xpi: 42 | @rm -f textern.xpi && cd webex && zip -r -FS ../textern.xpi * 43 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Textern 2 | 3 | Textern is a Firefox add-on that allows you to edit text 4 | areas in web pages using an external editor. 5 | 6 | The add-on is divided into two parts: 7 | 8 | - the WebExtension, which is available from AMO [here](https://addons.mozilla.org/addon/textern/), and 9 | - the native application, which handles text editor 10 | launching and monitoring. 11 | 12 | The native application currently only supports Linux with 13 | Python 3.5. Patches to add support for other platforms are 14 | welcome! 15 | 16 | ## Installation 17 | 18 | To clone the repository: 19 | 20 | ```sh 21 | $ git clone --recurse-submodules https://github.com/jlebon/textern 22 | $ cd textern 23 | ``` 24 | 25 | IMPORTANT: make sure that your git checkout includes 26 | submodules (either use the `--recurse-submodules` when 27 | running `git clone` as shown above, or use 28 | `git submodule update --init` if already cloned). 29 | 30 | To install the native app, run: 31 | 32 | ```sh 33 | $ sudo make native-install 34 | ``` 35 | 36 | To uninstall it, run: 37 | 38 | ```sh 39 | $ sudo make native-uninstall 40 | ``` 41 | 42 | On distros which do not use `/usr/lib64` (such as 43 | Debian/Ubuntu), you'll want to override `LIBDIR`: 44 | 45 | ```sh 46 | $ sudo make native-install LIBDIR=/usr/lib 47 | ``` 48 | 49 | If you do not have root privileges or wish to only install 50 | the native app for the current user, run: 51 | 52 | ```sh 53 | $ make native-install USER=1 54 | ``` 55 | 56 | ## Usage 57 | 58 | Once both the WebExtension and the native application are 59 | installed, you can select any textbox and press Ctrl+Shift+D 60 | to open an external editor. The textarea will flash yellow 61 | upon launching the text editor, as well as whenever the file 62 | is saved. 63 | 64 | By default, gedit is opened. You can change both the key 65 | mapping as well as the configured editor in the addon 66 | preferences. Additional parameters may be passed to the 67 | editor. For example: 68 | 69 | ```json 70 | ["myeditor", "--custom-arg"] 71 | ``` 72 | 73 | will launch `myeditor --custom-arg /path/to/file.txt`. You 74 | may use `%s` as a variable for the file path if don't want 75 | it to be the last argument. 76 | 77 | If your editor supports it, you can also use `%l` and `%c` 78 | to pass the line and column number of the caret position. 79 | (The capitalized versions `%L` and `%C` also exist which are 80 | smaller by one for text editors that count from zero). For 81 | example, passing this information to `gvim` (or `vim`): 82 | 83 | ```json 84 | ["gvim", "-f", "+set nofixeol", "+call setcursorcharpos(%l, %c)"] 85 | ``` 86 | 87 | Example for emacs: 88 | 89 | ```json 90 | ["emacs", "%s", "--eval", "(progn (goto-line %l) (move-to-column (1- %c)))"] 91 | ``` 92 | 93 | ### Terminal editors 94 | 95 | If you would like to use a terminal editor such as vim or 96 | emacs, you will need to modify the configuration such that 97 | Textern starts a terminal emulator which runs the text 98 | editor. For example, for `nvim` this could look like 99 | 100 | ```json 101 | ["xterm", "-e", "nvim", "+call cursor(%l,%c)"] 102 | ``` 103 | 104 | Here, `xterm` is the terminal emulator, `-e` instructs it to 105 | start a program, which is `nvim` (the editor we're actually 106 | interested in) with the given parameters. 107 | 108 | This works similarly with `konsole` or `gnome-terminal` 109 | instead of `xterm`. For example, starting `vim` with 110 | `gnome-terminal`: 111 | 112 | ```json 113 | ["gnome-terminal", "--wait", "--", "vim", "+call cursor(%l,%c)"] 114 | ``` 115 | 116 | Note that by default the `gnome-terminal` process won't wait 117 | for the spawned process to finish before exiting so you'll 118 | need to make sure you add the `--wait` flag. 119 | 120 | With `konsole`, you may need to ensure it runs in its own process 121 | with the either the `--separate` or `--nofork` flag: 122 | 123 | ```json 124 | ["konsole", "--separate", "-e", "vim", "+normal %lG%c|"] 125 | ``` 126 | 127 | ### GUI editors 128 | 129 | Non-terminal-based editors can also suffer from the same 130 | waiting problem described above. For example, gedit does not 131 | fork and thus can be used directly: 132 | 133 | ```json 134 | ["gedit"] 135 | ``` 136 | 137 | On the other hand, `gvim` by default will fork and detach. 138 | One must thus make sure to pass the `-f` switch for it to 139 | stay in the foreground: 140 | 141 | ```json 142 | ["gvim", "-f"] 143 | ``` 144 | 145 | #### Flatpak 146 | 147 | Flatpak-packaged editors should work fine, as long as the 148 | application has access to the `XDG_RUNTIME_DIR` directory. 149 | For example, to use the GNOME gedit flatpak, use: 150 | 151 | ```json 152 | ["flatpak", "run", "--filesystem=xdg-run/textern", "org.gnome.gedit"] 153 | ``` 154 | 155 | ### Enabling backups 156 | 157 | Textern has experimental support for backing up text to a 158 | separate location to allow recovering data inadvertently 159 | lost by closing a tab or Firefox too soon. To enable this 160 | feature, enter a path to the backup directory in the addon 161 | preferences page. Note no shell expansion is performed on 162 | the path (use e.g. `/home/jlebon` instead of `~`). 163 | 164 | **All files** older than 24 hours are deleted from the 165 | backup directory (i.e., not just those files that Textern 166 | created). If there are files in the directory that Textern 167 | fails to delete, then Textern will misbehave. For this 168 | reason, make sure the backup directory is exclusively used 169 | by Textern. 170 | 171 | Note this feature is experimental and subject to change. 172 | 173 | ## Troubleshooting 174 | 175 | Some things to try if it doesn't work properly: 176 | 177 | * Ensure you are running the latest version of Firefox 178 | * Try configuring Textern to launch using a different shortcut 179 | * Try configuring Textern to use the following as the external editor: `["sh", "-c", "echo foobar > $0"]` (that should just echo foobar into the textarea box) 180 | * Check the browser console for errors (Ctrl+Shift+J) 181 | * Check the extension's console for errors (Go to `about:debugging`, find Textern in the list of extensions, and click Inspect) 182 | * Make sure you cloned the repo with `--recurse-submodules` (see installation instructions above) 183 | * Try re-installing but for your local user (`make native-install USER=1` instead of `sudo make native-install`) 184 | * Check if Textern is running in the background (`ps aux | grep textern`) 185 | 186 | ### Firejail 187 | 188 | [Firejail](https://firejail.wordpress.com/) is a sandboxing program to restrict what your browser can do. It will prevent Textern from working. 189 | 190 | If you install Textern with USER=1, and your firejail instance is not using apparmor, then add to /etc/firejail/firejail.local: 191 | 192 | whitelist ${HOME}/.local/libexec/textern/ 193 | noblacklist ${PATH}/python3* 194 | noblacklist /usr/lib/python3* 195 | 196 | If apparmor is enabled, then add the Python lines to firejail.local and see [issue 52](#52). 197 | 198 | ## Related Projects 199 | 200 | ### It's All Text! 201 | 202 | https://github.com/docwhat/itsalltext/ 203 | 204 | This is the project that inspired this add-on. 205 | Unfortunately, it is not compatible with WebExtensions and 206 | thus cannot be installed on Firefox 57 or later. 207 | 208 | ### Tridactyl 209 | 210 | https://github.com/cmcaine/tridactyl 211 | 212 | Generic addon that adds Vim-like bindings to Firefox, 213 | including an `:editor` command which provides similar 214 | functionality to Textern. 215 | 216 | ### withExEditor 217 | 218 | https://github.com/asamuzaK/withExEditor 219 | 220 | Similar to Textern and supports WebExtensions. Native app is 221 | cross-platform but requires Node.js. 222 | 223 | ### GhostText 224 | 225 | https://github.com/GhostText/GhostText 226 | 227 | Uses editor-specific plugins to provide two-way on-the-fly 228 | sync between webpage and editor. 229 | -------------------------------------------------------------------------------- /native/textern.json.in: -------------------------------------------------------------------------------- 1 | { 2 | "name": "textern", 3 | "description": "Edit text with an external editor.", 4 | "path": "@@NATIVE_PATH@@", 5 | "type": "stdio", 6 | "allowed_extensions": [ "textern@jlebon.com" ] 7 | } 8 | -------------------------------------------------------------------------------- /native/textern.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python3 2 | # vim: set et ts=4 tw=80: 3 | # This file is part of Textern. 4 | # Copyright (C) 2017-2018 Jonathan Lebon 5 | # Copyright (C) 2018 Oleg Broytman 6 | # SPDX-License-Identifier: GPL-3.0-or-later 7 | 8 | import asyncio 9 | import json 10 | import os 11 | import shutil 12 | import struct 13 | import sys 14 | import tempfile 15 | import urllib.parse 16 | import time 17 | 18 | try: 19 | from inotify_simple import INotify, flags 20 | except ImportError: 21 | # fall-back to the old import pattern for git-submodule use-case (PR#57) 22 | from inotify_simple.inotify_simple import INotify, flags 23 | 24 | 25 | BACKUP_RETENTION_SECS = 24 * 60 * 60 26 | 27 | 28 | class TmpManager(): 29 | 30 | def __init__(self): 31 | try: 32 | tmpdir_parent = os.path.join( 33 | os.environ['XDG_RUNTIME_DIR'], 'textern') 34 | os.makedirs(tmpdir_parent) 35 | except FileExistsError: 36 | pass 37 | except (KeyError, OSError): 38 | tmpdir_parent = None 39 | self._backupdir = "" 40 | self.tmpdir = tempfile.mkdtemp(prefix="textern-", dir=tmpdir_parent) 41 | self._tmpfiles = {} # relfn --> opaque 42 | 43 | def __enter__(self): 44 | return self 45 | 46 | def __exit__(self, exc_type, exc_val, exc_tb): 47 | shutil.rmtree(self.tmpdir) 48 | 49 | def __contains__(self, relfn): 50 | return relfn in self._tmpfiles 51 | 52 | def update_backupdir(self, val): 53 | self._backupdir = val 54 | if self._backupdir != "": 55 | os.makedirs(self._backupdir, exist_ok=True) 56 | now = time.time() 57 | for path in os.listdir(self._backupdir): 58 | fn = os.path.join(self._backupdir, path) 59 | if not os.path.isfile(fn): 60 | continue 61 | stbuf = os.stat(fn) 62 | if now - stbuf.st_mtime > BACKUP_RETENTION_SECS: 63 | os.unlink(fn) 64 | 65 | def new(self, text, url, extension, opaque): 66 | sanitized_url = urllib.parse.quote(url, safe='') 67 | f, absfn = tempfile.mkstemp(dir=self.tmpdir, 68 | prefix=(sanitized_url + '-'), 69 | suffix=("." + extension)) 70 | # this itself will cause a harmless inotify event, though as a cool 71 | # side effect, we get an initial highlighting of the text area which is 72 | # nice feedback that the command was received 73 | os.write(f, text.encode("utf-8")) 74 | os.close(f) 75 | relfn = os.path.basename(absfn) 76 | assert relfn not in self._tmpfiles 77 | self._tmpfiles[relfn] = opaque 78 | return absfn 79 | 80 | def delete(self, absfn): 81 | relfn = os.path.basename(absfn) 82 | assert relfn in self._tmpfiles 83 | self._tmpfiles.pop(relfn) 84 | os.unlink(absfn) 85 | 86 | def backup(self, relfn): 87 | if self._backupdir == "": 88 | return 89 | assert relfn in self._tmpfiles 90 | absfn = os.path.join(self.tmpdir, relfn) 91 | if os.stat(absfn).st_size > 0: 92 | shutil.copyfile(absfn, os.path.join(self._backupdir, relfn)) 93 | 94 | def get(self, relfn): 95 | assert relfn in self._tmpfiles 96 | with open(os.path.join(self.tmpdir, relfn), encoding='utf-8') as f: 97 | return f.read(), self._tmpfiles[relfn] 98 | 99 | 100 | def main(): 101 | with INotify() as ino, TmpManager() as tmp_mgr: 102 | ino.add_watch(tmp_mgr.tmpdir, flags.CLOSE_WRITE) 103 | loop = asyncio.get_event_loop() 104 | loop.add_reader(sys.stdin.buffer, handle_stdin, tmp_mgr) 105 | loop.add_reader(ino.fd, handle_inotify_event, ino, tmp_mgr) 106 | loop.run_forever() 107 | loop.close() 108 | 109 | 110 | def handle_stdin(tmp_mgr): 111 | # In theory, these reads could block, since we only know that there is some 112 | # data, but not that all the data is there. We could be more strict here by 113 | # reading in a separate thread. In practice, we're trusting that we're 114 | # talking with Firefox and that readiness implies a full message (length + 115 | # content) is ready to be read. 116 | loop = asyncio.get_event_loop() 117 | raw_length = sys.stdin.buffer.read(4) 118 | if len(raw_length) == 0: 119 | loop.stop() 120 | return 121 | length = struct.unpack('@I', raw_length)[0] 122 | raw_message = sys.stdin.buffer.read(length) 123 | if len(raw_message) != length: 124 | raise Exception("expected %d bytes, but got %d" % (length, 125 | len(raw_message))) 126 | message = json.loads(raw_message.decode('utf-8')) 127 | loop.create_task(handle_message(tmp_mgr, message)) 128 | 129 | 130 | def get_final_editor_args(editor_args, absfn, line, column): 131 | final_editor_args = [] 132 | fn_added = False 133 | for arg in editor_args: 134 | if '%s' in arg: 135 | arg = arg.replace('%s', absfn) 136 | fn_added = True 137 | if '%l' in arg: 138 | arg = arg.replace('%l', str(line+1)) 139 | if '%L' in arg: 140 | arg = arg.replace('%L', str(line)) 141 | if '%c' in arg: 142 | arg = arg.replace('%c', str(column+1)) 143 | if '%C' in arg: 144 | arg = arg.replace('%C', str(column)) 145 | final_editor_args.append(arg) 146 | if not fn_added: 147 | final_editor_args.append(absfn) 148 | return final_editor_args 149 | 150 | 151 | async def handle_message(tmp_mgr, msg): 152 | await message_handlers[msg["type"]](tmp_mgr, msg["payload"]) 153 | 154 | 155 | def offset_to_line_and_column(text, offset): 156 | offset = max(0, min(len(text), offset)) 157 | text = text[:offset] 158 | line = text.count('\n') 159 | if line == 0: 160 | column = offset 161 | else: 162 | column = len(text[text.rindex('\n')+1:]) 163 | # NB: these are zero-based indexes 164 | return line, column 165 | 166 | 167 | async def handle_message_new_text(tmp_mgr, msg): 168 | 169 | # create a new tempfile for it 170 | absfn = tmp_mgr.new(msg["text"], msg["url"], 171 | msg["prefs"]["extension"], msg["id"]) 172 | 173 | # for now, we get preferences as part of new_text updates; in the future, we 174 | # may add a `set_prefs` message dedicated to this 175 | tmp_mgr.update_backupdir(msg["prefs"].get("backupdir", "")) 176 | editor_args = json.loads(msg["prefs"]["editor"]) 177 | 178 | line, column = offset_to_line_and_column(msg["text"], msg["caret"]) 179 | 180 | editor_args = get_final_editor_args(editor_args, absfn, line, column) 181 | try: 182 | proc = await asyncio.create_subprocess_exec( 183 | *editor_args, 184 | stdout=asyncio.subprocess.DEVNULL, 185 | stderr=asyncio.subprocess.DEVNULL 186 | ) 187 | except FileNotFoundError: 188 | send_error("could not find editor '%s'" % editor_args[0]) 189 | else: 190 | await proc.wait() 191 | if proc.returncode != 0: 192 | send_error("editor '%s' did not exit successfully" 193 | % editor_args[0]) 194 | finally: 195 | send_death_notice(msg["id"]) 196 | tmp_mgr.delete(absfn) 197 | 198 | 199 | message_handlers = { 200 | "new_text": handle_message_new_text, 201 | } 202 | 203 | 204 | def handle_inotify_event(ino, tmp_mgr): 205 | for event in ino.read(): 206 | # this check is relevant in the case where we're handling the inotify 207 | # event caused by tmp_mgr.new(), but then an exception occurred in 208 | # handle_message() which caused the tmpfile to already be deleted 209 | if event.name in tmp_mgr: 210 | text, id = tmp_mgr.get(event.name) 211 | send_text_update(id, text) 212 | tmp_mgr.backup(event.name) 213 | 214 | 215 | def send_text_update(id, text): 216 | send_raw_message("text_update", {"id": id, "text": text}) 217 | 218 | 219 | def send_death_notice(id): 220 | send_raw_message("death_notice", {"id": id}) 221 | 222 | 223 | def send_error(error): 224 | send_raw_message("error", {"error": error}) 225 | 226 | 227 | def send_raw_message(type, payload): 228 | 229 | # This is *also* potentially blocking, so to be more strict we'd delegate 230 | # this to a thread. Though in practice, we expect Firefox to clear the pipe 231 | # quickly enough. 232 | 233 | # writing as part of the event loop here means we don't have to lock stdout 234 | raw_msg = json.dumps({"type": type, "payload": payload}).encode('utf-8') 235 | sys.stdout.buffer.write(struct.pack('@I', len(raw_msg))) 236 | sys.stdout.buffer.write(raw_msg) 237 | sys.stdout.buffer.flush() 238 | 239 | 240 | def dbg(*args): 241 | print(*args, file=sys.stderr) 242 | sys.stderr.flush() 243 | 244 | 245 | if __name__ == "__main__": 246 | sys.exit(main()) 247 | -------------------------------------------------------------------------------- /webex/background.js: -------------------------------------------------------------------------------- 1 | /* vim: set et ts=4 tw=92: 2 | * Copyright (C) 2017-2018 Jonathan Lebon 3 | * This file is part of Textern. 4 | * SPDX-License-Identifier: GPL-3.0-or-later 5 | */ 6 | 7 | "use strict"; 8 | 9 | var port = undefined; 10 | 11 | var activeDocs = []; 12 | 13 | function logError(error) { 14 | console.log(`Error: ${error}`); 15 | } 16 | 17 | function assertNoResponse(response) { 18 | console.assert(response == undefined); 19 | } 20 | 21 | function notifyError(error) { 22 | browser.notifications.create({ 23 | type: "basic", 24 | title: "Textern", 25 | message: "Error: " + error + "." 26 | }); 27 | } 28 | 29 | function contentSetActiveText(tid, eid, text) { 30 | var sender = browser.tabs.sendMessage(tid, {type: "set_text", id: eid, text: text}); 31 | /* XXX: treat this error specially and notify? e.g. if tab was closed */ 32 | sender.then(assertNoResponse, logError); 33 | } 34 | 35 | function handleNativeMessage(msg) { 36 | if (msg.type == "text_update") { 37 | var [tid, eid] = msg.payload.id.split("_").map(x => { return parseInt(x); }); 38 | if (tid == NaN || eid == NaN) { 39 | console.log(`Invalid id: ${id}`); 40 | return; 41 | } 42 | contentSetActiveText(tid, eid, msg.payload.text); 43 | } else if (msg.type == "death_notice") { 44 | unregisterDoc(msg.payload.id); 45 | } else if (msg.type == "error") { 46 | notifyError(msg.payload.error); 47 | } else { 48 | console.log(`Unknown native message type: ${msg.type}`); 49 | } 50 | } 51 | 52 | function unregisterDoc(id) { 53 | 54 | var i = activeDocs.indexOf(id); 55 | if (i == -1) { 56 | console.log(`Error: document id ${id} isn't being edited`); 57 | return; 58 | } 59 | 60 | activeDocs.splice(i, 1); 61 | if (activeDocs.length == 0) { 62 | port.disconnect(); 63 | port = undefined; 64 | } 65 | } 66 | 67 | function registerDoc(tid, eid, text, caret, url) { 68 | 69 | var id = `${tid}_${eid}`; 70 | if (activeDocs.indexOf(id) != -1) { 71 | console.log(`Error: document id ${id} is already being edited`); 72 | notifyError("this text is already being edited"); 73 | return; 74 | } 75 | 76 | activeDocs.push(id); 77 | if (port == undefined) { 78 | port = browser.runtime.connectNative("textern"); 79 | port.onMessage.addListener((response) => { 80 | handleNativeMessage(response); 81 | }); 82 | port.onDisconnect.addListener((p) => { 83 | console.log("Disconnected from helper"); 84 | if (p.error) { 85 | logError(p.error); 86 | } 87 | activeDocs = []; 88 | port = undefined; 89 | }); 90 | } 91 | 92 | browser.storage.local.get({ 93 | editor: "[\"gedit\", \"+%l:%c\"]", 94 | extension: "txt", 95 | backupdir: "" 96 | }).then(values => { 97 | port.postMessage({ 98 | type: "new_text", 99 | payload: { 100 | id: id, 101 | text: text, 102 | caret: caret, 103 | url: url, 104 | prefs: { 105 | editor: values.editor, 106 | extension: values.extension, 107 | backupdir: values.backupdir 108 | } 109 | } 110 | }); 111 | }, logError); 112 | } 113 | 114 | function handleRegisterText(tabId, message) { 115 | registerDoc(tabId, message.id, message.text, message.caret, message.url); 116 | } 117 | 118 | function onMessage(message, sender, respond) { 119 | if (sender.id != "textern@jlebon.com") 120 | return; 121 | var tabId = sender.tab.id; 122 | if (message.type == "register_text") 123 | handleRegisterText(tabId, message); 124 | else 125 | console.log(`Unknown message type: ${message.type}`); 126 | } 127 | 128 | browser.runtime.onMessage.addListener(onMessage); 129 | -------------------------------------------------------------------------------- /webex/content.js: -------------------------------------------------------------------------------- 1 | /* vim: set et ts=4 tw=92: 2 | * Copyright (C) 2017-2018 Jonathan Lebon 3 | * This file is part of Textern. 4 | * SPDX-License-Identifier: GPL-3.0-or-later 5 | */ 6 | 7 | "use strict"; 8 | 9 | var elements = new Map(); /* id --> e */ 10 | 11 | function logError(error) { 12 | console.log(`Error: ${error}`); 13 | } 14 | 15 | function assertNoResponse(response) { 16 | console.assert(response == undefined); 17 | } 18 | 19 | function notifyError(error) { 20 | browser.notifications.create({ 21 | type: "basic", 22 | title: "Textern", 23 | message: "Error: " + error + "." 24 | }); 25 | } 26 | 27 | function watchElement(e) { 28 | /* these are IDs we assign ourselves, unrelated to its DOM id */ 29 | if (!("texternId" in e)) 30 | e.texternId = elements.size; 31 | elements.set(e.texternId, e); 32 | return e.texternId; 33 | } 34 | 35 | // Check if this is a GMail message body 36 | function isGmailMessageBody(e) { 37 | return e.baseURI.startsWith("https://mail.google") && 38 | e.attributes["aria-label"].textContent == "Message Body"; 39 | } 40 | 41 | function gmailGetText(e) { 42 | return e.innerText 43 | // non-breakable space to space 44 | .replaceAll("\u00A0", " ") 45 | // innerText gets confused by

for empty newlines 46 | // resulting in two newlines. undo that. 47 | .replaceAll("\n\n", "\n"); 48 | } 49 | 50 | function gmailSetText(e, text) { 51 | e.innerHTML = ""; 52 | var lines = text.split("\n"); 53 | for (i = 0; i < lines.length; i++) { 54 | var div = document.createElement('div'); 55 | div.textContent = lines[i].replaceAll(" ", "\u00A0"); 56 | if (lines[i].trim().length == 0) { 57 | div.appendChild(document.createElement('br')); 58 | } 59 | e.appendChild(div); 60 | } 61 | } 62 | 63 | /* special hack for Slack: https://github.com/jlebon/textern/issues/61 */ 64 | function isSlackMessage(e) { 65 | return (window.location.hostname.endsWith(".slack.com") && 66 | e.classList.contains("ql-editor")); 67 | } 68 | 69 | function slackGetText(e) { 70 | /* each line is a different

element */ 71 | var text = ""; 72 | for (i = 0; i < e.children.length; i++) { 73 | if (i > 0) { 74 | text += "\n"; 75 | } 76 | text += e.children[i].textContent; 77 | } 78 | return text; 79 | } 80 | 81 | function slackSetText(e, text) { 82 | e.innerHTML = ""; 83 | var lines = text.split("\n"); 84 | for (i = 0; i < lines.length; i++) { 85 | var p = document.createElement('p'); 86 | p.textContent = lines[i]; 87 | if (lines[i].length == 0) { 88 | p.appendChild(document.createElement('br')); 89 | } 90 | e.appendChild(p); 91 | } 92 | } 93 | 94 | function registerText(event) { 95 | var e = event.target; 96 | if (e.nodeName == "TEXTAREA") { 97 | var id = watchElement(e); 98 | /* don't use href directly to not bring in e.g. url params */ 99 | var simple_url = window.location.hostname + window.location.pathname 100 | browser.runtime.sendMessage("textern@jlebon.com", { 101 | type: "register_text", 102 | id: id, 103 | text: e.value, 104 | caret: e.selectionStart, 105 | url: simple_url 106 | }).then(assertNoResponse, logError); 107 | } else if ((e.nodeName == "DIV") && e.contentEditable) { 108 | var id = watchElement(e); 109 | /* don't use href directly to not bring in e.g. url params */ 110 | var simple_url = window.location.hostname + window.location.pathname; 111 | var text = ""; 112 | if (isSlackMessage(e)) { 113 | text = slackGetText(e); 114 | } else if (isGmailMessageBody(e)) { 115 | text = gmailGetText(e); 116 | } else { 117 | text = e.innerText; 118 | } 119 | browser.runtime.sendMessage("textern@jlebon.com", { 120 | type: "register_text", 121 | id: id, 122 | text: text, 123 | caret: 0, 124 | url: simple_url 125 | }).then(assertNoResponse, logError); 126 | } else { 127 | notifyError("no text field selected"); 128 | } 129 | } 130 | 131 | function rgb(r, g, b) { 132 | return 'rgb(' + ([r, g, b].join()) + ')'; 133 | } 134 | 135 | const ANIMATION_DURATION_S = 500.0; 136 | const ANIMATION_N_STEPS = 10; 137 | 138 | function fadeBackground(e) { 139 | if ("texternOrigBackgroundColor" in e) 140 | return; /* if there's already an animation in progress, don't start a new one */ 141 | e.texternOrigBackgroundColor = e.style.backgroundColor; 142 | e.style.backgroundColor = rgb(255, 255, 0); 143 | var i = 0; 144 | var timerId = window.setInterval(function() { 145 | if (i < ANIMATION_N_STEPS) { 146 | e.style.backgroundColor = rgb(255, 255, i*(255/ANIMATION_N_STEPS)); 147 | i++; 148 | } else { 149 | e.style.backgroundColor = e.texternOrigBackgroundColor; 150 | delete e.texternOrigBackgroundColor; 151 | window.clearInterval(timerId); 152 | } 153 | }, ANIMATION_DURATION_S / ANIMATION_N_STEPS); 154 | } 155 | 156 | function setText(id, text) { 157 | var e = elements.get(id); 158 | if (e.nodeName == "TEXTAREA") { 159 | e.value = text; 160 | /* send input event to make website (p.e. tiddlywiki.com) aware of updated text */ 161 | e.dispatchEvent(new Event('input', {})); 162 | } else if ((e.nodeName == "DIV") && e.contentEditable) { 163 | if (isSlackMessage(e)) { 164 | slackSetText(e, text); 165 | } else if (isGmailMessageBody(e)) { 166 | gmailSetText(e, text); 167 | } else { 168 | e.innerText = text; 169 | } 170 | } 171 | fadeBackground(e); 172 | } 173 | 174 | function onMessage(message, sender, respond) { 175 | if (sender.id != "textern@jlebon.com") 176 | return; 177 | if (message.type == "set_text") 178 | setText(message.id, message.text); 179 | else { 180 | console.log(`Unknown message type: ${message.type}`); 181 | } 182 | } 183 | 184 | browser.runtime.onMessage.addListener(onMessage); 185 | 186 | var currentShortcut = undefined; 187 | function registerShortcut(force) { 188 | browser.storage.local.get({shortcut: "Ctrl+Shift+D"}).then(val => { 189 | if ((val.shortcut == currentShortcut) && !force) 190 | return; /* no change */ 191 | if (currentShortcut != undefined) 192 | shortcut.remove(currentShortcut); 193 | currentShortcut = val.shortcut; 194 | shortcut.add(currentShortcut, registerText); 195 | }); 196 | } 197 | 198 | registerShortcut(true); 199 | 200 | /* meh, we just re-apply the shortcut -- XXX: should check what actually changed */ 201 | browser.storage.onChanged.addListener(function(changes, areaName) { 202 | registerShortcut(false); 203 | }); 204 | 205 | /* we also want to make sure we re-register whenever the number of iframes changes */ 206 | var lastNumFrames = window.frames.length; 207 | const observer = new MutationObserver(function() { 208 | if (window.frames.length != lastNumFrames) { 209 | registerShortcut(true); 210 | lastNumFrames = window.frames.length; 211 | } 212 | }); 213 | observer.observe(document, {childList: true, subtree: true}); 214 | -------------------------------------------------------------------------------- /webex/manifest.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "Textern", 3 | "description": "Edit text in your favourite external editor!", 4 | "homepage_url": "https://github.com/jlebon/textern", 5 | "manifest_version": 2, 6 | "version": "0.8", 7 | 8 | "browser_specific_settings": { 9 | "gecko": { 10 | "id": "textern@jlebon.com", 11 | "strict_min_version": "57.0" 12 | } 13 | }, 14 | 15 | "background": { 16 | "scripts": ["background.js"] 17 | }, 18 | 19 | "content_scripts": [ 20 | { 21 | "matches": [""], 22 | "js": ["shortcut.js", "content.js"] 23 | } 24 | ], 25 | 26 | "options_ui": { 27 | "page": "options.html" 28 | }, 29 | 30 | "permissions": ["notifications", "nativeMessaging", "storage"] 31 | } 32 | -------------------------------------------------------------------------------- /webex/options.css: -------------------------------------------------------------------------------- 1 | /* vim: set et ts=4 tw=92: 2 | * Copyright (C) 2017-2018 Jonathan Lebon 3 | * This file is part of Textern. 4 | * SPDX-License-Identifier: GPL-3.0-or-later 5 | */ 6 | 7 | form > * { 8 | font-size: 120%; 9 | margin-bottom: 5px; 10 | margin-left: 5px; 11 | } 12 | 13 | form > span { 14 | padding-left: 10px; 15 | } 16 | 17 | form > input, form > label { 18 | display: block; 19 | } 20 | 21 | form > input { 22 | width: 80%; 23 | } 24 | 25 | form > button { 26 | height: 1.75em; 27 | width: 7em; 28 | margin-top: 10px; 29 | text-align: center; 30 | } 31 | -------------------------------------------------------------------------------- /webex/options.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |

12 | 13 | 16 | 17 | 18 | 19 | 21 | 22 | 23 | 24 |
25 | 26 | 27 | 28 | -------------------------------------------------------------------------------- /webex/options.js: -------------------------------------------------------------------------------- 1 | /* vim: set et ts=4 tw=92: 2 | * Copyright (C) 2017-2018 Jonathan Lebon 3 | * This file is part of Textern. 4 | * SPDX-License-Identifier: GPL-3.0-or-later 5 | */ 6 | 7 | "use strict"; 8 | 9 | function onError(error) { 10 | console.log(`Error: ${error}`); 11 | } 12 | 13 | function saveOptions(e) { 14 | e.preventDefault(); 15 | browser.storage.local.set({ 16 | editor: document.querySelector("#editor").value, 17 | shortcut: document.querySelector("#shortcut").value, 18 | extension: document.querySelector("#extension").value, 19 | backupdir: document.querySelector("#backupdir").value 20 | }); 21 | document.querySelector("#saved").innerHTML = '\u2713'; 22 | } 23 | 24 | function clearCheckmark(e) { 25 | document.querySelector("#saved").innerHTML = ""; 26 | } 27 | 28 | function restoreOptions() { 29 | 30 | browser.storage.local.get("editor").then(result => { 31 | document.querySelector("#editor").value = 32 | result.editor || "[\"gedit\", \"+%l:%c\"]"; 33 | }, onError); 34 | 35 | browser.storage.local.get("shortcut").then(result => { 36 | document.querySelector("#shortcut").value = result.shortcut || "Ctrl+Shift+D"; 37 | }, onError); 38 | 39 | browser.storage.local.get("extension").then(result => { 40 | document.querySelector("#extension").value = result.extension || "txt"; 41 | }, onError); 42 | 43 | browser.storage.local.get("backupdir").then(result => { 44 | document.querySelector("#backupdir").value = result.backupdir || ""; 45 | }, onError); 46 | } 47 | 48 | document.addEventListener("DOMContentLoaded", restoreOptions); 49 | document.querySelector("form").addEventListener("submit", saveOptions); 50 | document.querySelectorAll("form > input").forEach( 51 | function(value, key, listObj, argument) { 52 | value.addEventListener("input", clearCheckmark); 53 | } 54 | ) 55 | -------------------------------------------------------------------------------- /webex/shortcut.js: -------------------------------------------------------------------------------- 1 | /** 2 | * http://www.openjs.com/scripts/events/keyboard_shortcuts/ 3 | * Version : 2.01.B 4 | * By Binny V A 5 | * License : BSD 6 | * 7 | * Adapted by Jonathan Lebon . 8 | */ 9 | shortcut = { 10 | 'all_shortcuts':{},//All the shortcuts are stored in this array 11 | 'add': function(shortcut_combination,callback,opt) { 12 | //Provide a set of default options 13 | var default_options = { 14 | 'type':'keydown', 15 | 'propagate':false, 16 | 'disable_in_input':false, 17 | 'target':window, 18 | 'keycode':false 19 | } 20 | if(!opt) opt = default_options; 21 | else { 22 | for(var dfo in default_options) { 23 | if(typeof opt[dfo] == 'undefined') opt[dfo] = default_options[dfo]; 24 | } 25 | } 26 | 27 | var ele = opt.target; 28 | if(typeof opt.target == 'string') ele = document.getElementById(opt.target); 29 | var ths = this; 30 | shortcut_combination = shortcut_combination.toLowerCase(); 31 | 32 | //The function to be called at keypress 33 | var func = function(e) { 34 | if(opt['disable_in_input']) { //Don't enable shortcut keys in Input, Textarea fields 35 | var element; 36 | if(e.target) element=e.target; 37 | else if(e.srcElement) element=e.srcElement; 38 | if(element.nodeType==3) element=element.parentNode; 39 | 40 | if(element.tagName == 'INPUT' || element.tagName == 'TEXTAREA') return; 41 | } 42 | 43 | //Find Which key is pressed 44 | if (e.keyCode) code = e.keyCode; 45 | else if (e.which) code = e.which; 46 | var character = String.fromCharCode(code).toLowerCase(); 47 | 48 | if(code == 188) character=","; //If the user presses , when the type is onkeydown 49 | if(code == 190) character="."; //If the user presses , when the type is onkeydown 50 | 51 | var keys = shortcut_combination.split("+"); 52 | //Key Pressed - counts the number of valid keypresses - if it is same as the number of keys, the shortcut function is invoked 53 | var kp = 0; 54 | 55 | //Work around for stupid Shift key bug created by using lowercase - as a result the shift+num combination was broken 56 | var shift_nums = { 57 | "`":"~", 58 | "1":"!", 59 | "2":"@", 60 | "3":"#", 61 | "4":"$", 62 | "5":"%", 63 | "6":"^", 64 | "7":"&", 65 | "8":"*", 66 | "9":"(", 67 | "0":")", 68 | "-":"_", 69 | "=":"+", 70 | ";":":", 71 | "'":"\"", 72 | ",":"<", 73 | ".":">", 74 | "/":"?", 75 | "\\":"|" 76 | } 77 | //Special Keys - and their codes 78 | var special_keys = { 79 | 'esc':27, 80 | 'escape':27, 81 | 'tab':9, 82 | 'space':32, 83 | 'return':13, 84 | 'enter':13, 85 | 'backspace':8, 86 | 87 | 'scrolllock':145, 88 | 'scroll_lock':145, 89 | 'scroll':145, 90 | 'capslock':20, 91 | 'caps_lock':20, 92 | 'caps':20, 93 | 'numlock':144, 94 | 'num_lock':144, 95 | 'num':144, 96 | 97 | 'pause':19, 98 | 'break':19, 99 | 100 | 'insert':45, 101 | 'home':36, 102 | 'delete':46, 103 | 'end':35, 104 | 105 | 'pageup':33, 106 | 'page_up':33, 107 | 'pu':33, 108 | 109 | 'pagedown':34, 110 | 'page_down':34, 111 | 'pd':34, 112 | 113 | 'left':37, 114 | 'up':38, 115 | 'right':39, 116 | 'down':40, 117 | 118 | 'f1':112, 119 | 'f2':113, 120 | 'f3':114, 121 | 'f4':115, 122 | 'f5':116, 123 | 'f6':117, 124 | 'f7':118, 125 | 'f8':119, 126 | 'f9':120, 127 | 'f10':121, 128 | 'f11':122, 129 | 'f12':123 130 | } 131 | 132 | var modifiers = { 133 | shift: { wanted:false, pressed:false}, 134 | ctrl : { wanted:false, pressed:false}, 135 | alt : { wanted:false, pressed:false}, 136 | meta : { wanted:false, pressed:false} //Meta is Mac specific 137 | }; 138 | 139 | if(e.ctrlKey) modifiers.ctrl.pressed = true; 140 | if(e.shiftKey) modifiers.shift.pressed = true; 141 | if(e.altKey) modifiers.alt.pressed = true; 142 | if(e.metaKey) modifiers.meta.pressed = true; 143 | 144 | for(var i=0; k=keys[i],i 1) { //If it is a special key 161 | if(special_keys[k] == code) kp++; 162 | 163 | } else if(opt['keycode']) { 164 | if(opt['keycode'] == code) kp++; 165 | 166 | } else { //The special keys did not match 167 | if(character == k) kp++; 168 | else { 169 | if(shift_nums[character] && e.shiftKey) { //Stupid Shift key bug created by using lowercase 170 | character = shift_nums[character]; 171 | if(character == k) kp++; 172 | } 173 | } 174 | } 175 | } 176 | 177 | if(kp == keys.length && 178 | modifiers.ctrl.pressed == modifiers.ctrl.wanted && 179 | modifiers.shift.pressed == modifiers.shift.wanted && 180 | modifiers.alt.pressed == modifiers.alt.wanted && 181 | modifiers.meta.pressed == modifiers.meta.wanted) { 182 | callback(e); 183 | 184 | if(!opt['propagate']) { //Stop the event 185 | //e.cancelBubble is supported by IE - this will kill the bubbling process. 186 | e.cancelBubble = true; 187 | e.returnValue = false; 188 | 189 | //e.stopPropagation works in Firefox. 190 | if (e.stopPropagation) { 191 | e.stopPropagation(); 192 | e.preventDefault(); 193 | } 194 | return false; 195 | } 196 | } 197 | } 198 | this.all_shortcuts[shortcut_combination] = { 199 | 'callback':func, 200 | 'target':ele, 201 | 'event': opt['type'] 202 | }; 203 | //Attach the function with the event 204 | 205 | ele.addEventListener(opt['type'], func, true); 206 | 207 | // special-case window: in that case, we want to make sure to attach to 208 | // all the nested frames too 209 | if (ele === window) { 210 | for (i = 0; i < window.frames.length; i++) { 211 | try { 212 | window.frames[i].addEventListener(opt['type'], func, true); 213 | } catch(err) { 214 | console.log(`Failed to add shortcut on window frame ${i}: ${err}`); 215 | } 216 | } 217 | } 218 | }, 219 | 220 | //Remove the shortcut - just specify the shortcut and I will remove the binding 221 | 'remove':function(shortcut_combination) { 222 | shortcut_combination = shortcut_combination.toLowerCase(); 223 | var binding = this.all_shortcuts[shortcut_combination]; 224 | delete(this.all_shortcuts[shortcut_combination]) 225 | if(!binding) return; 226 | var type = binding['event']; 227 | var ele = binding['target']; 228 | var callback = binding['callback']; 229 | 230 | ele.removeEventListener(type, callback, true); 231 | if (ele === window) { 232 | for (i = 0; i < window.frames.length; i++) { 233 | try { 234 | window.frames[i].removeEventListener(type, callback, true); 235 | } catch(err) {} 236 | } 237 | } 238 | } 239 | } 240 | --------------------------------------------------------------------------------