├── LICENSE.txt ├── README.md ├── debian ├── changelog ├── chromium │ └── blinklight ├── compat ├── control ├── copyright ├── install ├── links ├── postinst ├── rules └── source │ └── format ├── extension ├── blinklight.js ├── content.js ├── icon-128.png ├── icon-32.png ├── led.js ├── manifest.json ├── options.css ├── options.html └── options.js └── native-messaging-host ├── Makefile.am ├── configure.ac └── native-messaging-host.c /LICENSE.txt: -------------------------------------------------------------------------------- 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 | 635 | Copyright (C) 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 | Copyright (C) 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 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | blinklight for Chrome and Firefox 2 | ================================= 3 | 4 | This is an extension for Chrome and Firefox on Linux that notifies you about new 5 | content (such as unread messages) in pinned tabs, using one of your laptop's 6 | LEDs, like the power button on newer ThinkPads, or the ThinkLight on older models. 7 | 8 | Most interactive websites, like mail and chat web apps, change the page title 9 | in order to indicate new messages. If that happens in a pinned tab in the 10 | background, the tab is highlighted in order to get your attention. With this 11 | extension, in addition, an LED will be used, in order to indicate that a pinned 12 | tab's title has changed. This is in particular useful, when the browser window 13 | is minimized or on another workspace. 14 | 15 | In order to pin a tab, right click on the tab and choose "Pin tab". 16 | 17 | 18 | Installation 19 | ------------ 20 | 21 | *blinklight* consists of two parts, a browser extension that observes 22 | pinned tabs, and a native host application that controls the LED. 23 | In order for *blinklight* to work, both have to be installed. 24 | 25 | ### On Debian/Ubuntu 26 | 27 | A package is available from the author's PPA, which can be installed by running 28 | following commands (as root): 29 | 30 | ``` 31 | add-apt-repository ppa:s.noack/ppa 32 | apt-get update 33 | apt-get install chrome-blinklight 34 | ``` 35 | 36 | The next time you start Chromium or Firefox, the extension should be active, 37 | and the settings, where you have to set the LED and trigger, should pop up. 38 | If your browser is already running, restart it now. However, if you are using 39 | Google Chrome, you have to install the extension seperately from the [Chrome Web Store][1]. 40 | 41 | ### Building from source 42 | 43 | In order to build the host application, you need a C compiler, *autotools* 44 | and the *json-c* development files. Given you have all of these installed, 45 | and you are in the project root now, run following commands: 46 | 47 | ``` 48 | cd native-messaging-host 49 | autoreconf --install 50 | ./configure 51 | make 52 | ``` 53 | 54 | Then, install the host application, by running following command (as root): 55 | 56 | ``` 57 | make install 58 | ``` 59 | 60 | Finally, install the extension for [Chrome][1] or [Firefox][2], if not done yet. 61 | During development, you can also load the extension directly from the 62 | `extension` subdirectory in the source tree, this however, is not recommended 63 | for normal usage. 64 | 65 | 66 | Testing 67 | ------- 68 | 69 | The available LEDs in the options, are all LEDs exposed by the Linux kernel under 70 | `/sys/class/leds`. Not all of them might work, some LEDs are exposed by Linux 71 | even though they don't exist, or cannot be controlled in software, on your laptop. 72 | A bug in *blinklight* isn't entirely impossible too. Or you just might want to 73 | figure out the name of a particular LED, or vice-versa. 74 | 75 | The easiest way to test the configuration, is to run following code from 76 | the developer tools console. While the tab is pinned and in the background, 77 | this should generate an event that triggers the LED, once a second. 78 | 79 | ```javascript 80 | setInterval(function() { document.title = Math.random(); }, 1000); 81 | ``` 82 | 83 | 84 | [1]: https://chrome.google.com/webstore/detail/blinklight/jiaipmkogklkpmpabagihfledlejmgaf 85 | [2]: https://addons.mozilla.org/en-US/firefox/addon/blinklight/ 86 | -------------------------------------------------------------------------------- /debian/changelog: -------------------------------------------------------------------------------- 1 | chrome-blinklight (2.2) zesty; urgency=medium 2 | 3 | * Added Firefox support 4 | * Fixed hidden error message 5 | * Detect OS and architecture in a more reliable way 6 | 7 | -- Sebastian Noack Thu, 11 May 2017 20:20:00 +0200 8 | 9 | chrome-blinklight (2.1) zesty; urgency=medium 10 | 11 | * Fixed build. 12 | * Improved icon. 13 | 14 | -- Sebastian Noack Wed, 03 May 2017 20:47:20 +0200 15 | 16 | chrome-blinklight (2.0) zesty; urgency=medium 17 | 18 | * Initial package 19 | 20 | -- Sebastian Noack Wed, 3 May 2017 12:00:00 +0200 21 | -------------------------------------------------------------------------------- /debian/chromium/blinklight: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | export CHROMIUM_FLAGS="${CHROMIUM_FLAGS} --load-extension=/usr/share/chromium/extensions/blinklight" 3 | -------------------------------------------------------------------------------- /debian/compat: -------------------------------------------------------------------------------- 1 | 10 2 | -------------------------------------------------------------------------------- /debian/control: -------------------------------------------------------------------------------- 1 | Source: chrome-blinklight 2 | Section: web 3 | Priority: optional 4 | Maintainer: Sebastian Noack 5 | Build-Depends: debhelper (>= 9), dh-autoreconf, pkg-config, libjson-c-dev 6 | Standards-Version: 3.9.8 7 | Homepage: https://github.com/snoack/chrome-blinklight 8 | 9 | Package: chrome-blinklight 10 | Architecture: any 11 | Depends: ${shlibs:Depends}, ${misc:Depends}, libcap2-bin 12 | Description: Browser extension that notifies you about urgent tabs using one of your laptop's LEDs 13 | -------------------------------------------------------------------------------- /debian/copyright: -------------------------------------------------------------------------------- 1 | Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/ 2 | Upstream-Name: chrome-blinklight 3 | Source: https://github.com/snoack/chrome-blinklight 4 | 5 | Files: * 6 | Copyright: 2017 Sebastian Noack 7 | License: GPL-3.0+ 8 | 9 | License: GPL-3.0+ 10 | This program is free software: you can redistribute it and/or modify 11 | it under the terms of the GNU General Public License as published by 12 | the Free Software Foundation, either version 3 of the License, or 13 | (at your option) any later version. 14 | . 15 | This package is distributed in the hope that it will be useful, 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 | GNU General Public License for more details. 19 | . 20 | You should have received a copy of the GNU General Public License 21 | along with this program. If not, see . 22 | . 23 | On Debian systems, the complete text of the GNU General 24 | Public License version 3 can be found in "/usr/share/common-licenses/GPL-3". 25 | -------------------------------------------------------------------------------- /debian/install: -------------------------------------------------------------------------------- 1 | extension/* usr/share/chromium/extensions/blinklight/ 2 | debian/chromium/blinklight etc/chromium.d/ 3 | -------------------------------------------------------------------------------- /debian/links: -------------------------------------------------------------------------------- 1 | usr/share/chromium/extensions/blinklight usr/share/mozilla/extensions/{ec8030f7-c20a-464f-9b0e-13a3a9e97384}/blinklight@snoack.addons.mozilla.org 2 | -------------------------------------------------------------------------------- /debian/postinst: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | 3 | set -e 4 | 5 | if [ "$1" = configure ]; then 6 | setcap cap_dac_override,cap_sys_module+ep /usr/share/chrome-blinklight/native-messaging-host 7 | fi 8 | 9 | #DEBHELPER# 10 | 11 | exit 0 12 | -------------------------------------------------------------------------------- /debian/rules: -------------------------------------------------------------------------------- 1 | #!/usr/bin/make -f 2 | 3 | # The hardening flags added by debhelper cause some overeager unused-result 4 | # warnings, and since we use -Werror as well, the build will fail, unless we 5 | # disable these warnings. 6 | export DEB_CPPFLAGS_MAINT_APPEND = -Wno-unused-result 7 | 8 | %: 9 | dh $@ --with=autoreconf --sourcedirectory=native-messaging-host 10 | 11 | # --with-static-jsonc: Newer Debian releases provide libjson-c.so.3 with 12 | # the ibjson-c3 package, while older Debian releases provide libjson-c.so.2 13 | # with the libjson-c2 package. So in order to keep this package compatible 14 | # with a wide range of Debian releases, we have to link libjson-c statically. 15 | # --libexecdir=/usr/share: Debian doesn't use /usr/libexec, so we put it 16 | # in /usr/share instead, which seems where other packages put their helper 17 | # executables as well. 18 | override_dh_auto_configure: 19 | dh_auto_configure -- --with-static-jsonc --libexecdir=/usr/share 20 | 21 | # Prevent the Makefile from setting capabilities. This will fail, while 22 | # building the package, as it requires root. Furthermore, the capibilities won't 23 | # make it into the package anyway, and need to be set by a postinst script. 24 | override_dh_auto_install: 25 | dh_auto_install -- nosetcap=1 26 | -------------------------------------------------------------------------------- /debian/source/format: -------------------------------------------------------------------------------- 1 | 3.0 (native) 2 | -------------------------------------------------------------------------------- /extension/blinklight.js: -------------------------------------------------------------------------------- 1 | const PINNED = 1; 2 | const URGENT = 2; 3 | 4 | Blinklight = function() { 5 | this.tabs = {}; 6 | this.ledControl = new LedControl(); 7 | 8 | chrome.tabs.query({pinned: true}, this.onInitialPinnedTabs.bind(this)); 9 | chrome.tabs.onCreated.addListener(this.onCreated.bind(this)); 10 | chrome.tabs.onUpdated.addListener(this.onUpdated.bind(this)); 11 | chrome.tabs.onRemoved.addListener(this.onRemoved.bind(this)); 12 | chrome.webNavigation.onCommitted.addListener(this.onCommitted.bind(this)); 13 | chrome.runtime.onMessage.addListener(this.onMessage.bind(this)); 14 | }; 15 | Blinklight.prototype = { 16 | injectScript(tabId) { 17 | chrome.tabs.executeScript(tabId, {file: 'content.js'}); 18 | }, 19 | initPinnedTab(tabId) { 20 | this.injectScript(tabId); 21 | this.tabs[tabId] = PINNED; 22 | }, 23 | onInitialPinnedTabs(tabs) { 24 | for (i = 0; i < tabs.length; i++) 25 | this.initPinnedTab(tabs[i].id); 26 | }, 27 | onCreated(tab) { 28 | if (tab.pinned) 29 | this.tabs[tab.id] = PINNED; 30 | }, 31 | checkClear() { 32 | for (var tabId in this.tabs) 33 | if (this.tabs[tabId] & URGENT) 34 | return; 35 | this.ledControl.clear(); 36 | }, 37 | onUpdated(tabId, change) { 38 | if ("pinned" in change) { 39 | if (tabId in this.tabs) { 40 | if (change.pinned) 41 | this.tabs[tabId] |= PINNED; 42 | else { 43 | var flags = this.tabs[tabId]; 44 | this.tabs[tabId] = 0; 45 | if (flags & URGENT) 46 | this.checkClear(); 47 | } 48 | } else if (change.pinned) 49 | this.initPinnedTab(tabId); 50 | } 51 | }, 52 | onRemoved(tabId) { 53 | var flags = this.tabs[tabId]; 54 | delete this.tabs[tabId]; 55 | if (flags & URGENT) 56 | this.checkClear(); 57 | }, 58 | onCommitted(details) { 59 | if (details.frameId == 0) { 60 | if (this.tabs[details.tabId] & PINNED) 61 | this.injectScript(details.tabId); 62 | else 63 | delete this.tabs[details.tabId]; 64 | } 65 | }, 66 | onMessage(message, sender, sendResponse) { 67 | if (message == "get-leds") { 68 | this.ledControl.getLeds(sendResponse); 69 | return true; 70 | } 71 | 72 | if (message == "get-last-error") { 73 | this.ledControl.getLastError(sendResponse); 74 | return true; 75 | } 76 | 77 | if (this.tabs[sender.tab.id] & PINNED) { 78 | switch (message) { 79 | case "notify": 80 | this.tabs[sender.tab.id] |= URGENT; 81 | this.ledControl.notify(); 82 | break; 83 | 84 | case "clear": 85 | this.tabs[sender.tab.id] &= ~URGENT; 86 | this.checkClear(); 87 | break; 88 | } 89 | } 90 | } 91 | }; 92 | 93 | blinklight = new Blinklight(); 94 | -------------------------------------------------------------------------------- /extension/content.js: -------------------------------------------------------------------------------- 1 | (function() { 2 | var titles; 3 | 4 | var observer = new MutationObserver(function() { 5 | if (!titles.has(document.title)) { 6 | titles.add(document.title); 7 | chrome.runtime.sendMessage("notify"); 8 | } 9 | }); 10 | 11 | function observe() { 12 | var element = document.querySelector('title'); 13 | if (element) { 14 | titles = new Set([document.title]); 15 | observer.observe(element, {characterData: true, childList: true}); 16 | } 17 | } 18 | 19 | document.addEventListener("visibilitychange", function() { 20 | if (document.hidden) 21 | observe(); 22 | else { 23 | if (titles.size > 1) 24 | chrome.runtime.sendMessage("clear"); 25 | 26 | titles = null; 27 | observer.disconnect(); 28 | } 29 | }); 30 | 31 | if (document.hidden) 32 | observe(); 33 | })(); 34 | -------------------------------------------------------------------------------- /extension/icon-128.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/snoack/chrome-blinklight/31015677c565dc0d6e572ef8e2dda5963772cca8/extension/icon-128.png -------------------------------------------------------------------------------- /extension/icon-32.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/snoack/chrome-blinklight/31015677c565dc0d6e572ef8e2dda5963772cca8/extension/icon-32.png -------------------------------------------------------------------------------- /extension/led.js: -------------------------------------------------------------------------------- 1 | LedControl = function() { 2 | this._port = null; 3 | this._led = null; 4 | this._ledReady = false; 5 | this._control = null; 6 | this._urgent = 0; 7 | this._lastError = Promise.resolve(null); 8 | 9 | chrome.storage.local.get(['led', 'trigger'], this._onSettingsRetrieved.bind(this)); 10 | chrome.storage.onChanged.addListener(this._onSettingsChanged.bind(this)); 11 | }; 12 | LedControl.prototype = { 13 | _connect() { 14 | if (!this._port) { 15 | this._port = chrome.runtime.connectNative("org.snoack.blinklight"); 16 | this._port.onDisconnect.addListener(function() { 17 | this._port = null; 18 | this._ledReady = false; 19 | }.bind(this)); 20 | } 21 | }, 22 | _recvMessage(callback) 23 | { 24 | var onMessage = function(message, port) { 25 | port.onMessage.removeListener(onMessage); 26 | port.onDisconnect.removeListener(onDisconnected); 27 | callback(message); 28 | } 29 | 30 | var onDisconnected = function(port) { 31 | port.onMessage.removeListener(onMessage); 32 | port.onDisconnect.removeListener(onDisconnected); 33 | callback(null); 34 | } 35 | 36 | this._port.onMessage.addListener(onMessage); 37 | this._port.onDisconnect.addListener(onDisconnected); 38 | }, 39 | _setTrigger(trigger) { 40 | if (trigger == "on") 41 | this._control = ["off", "on"]; 42 | else 43 | this._control = ["clear", trigger]; 44 | }, 45 | _initLed() { 46 | this._connect(); 47 | this._port.postMessage({action: "set-led", led: this._led}); 48 | this._ledReady = true; 49 | 50 | this._lastError = new Promise(function(resolve) { 51 | this._recvMessage(function(error) { 52 | resolve(error); 53 | 54 | if (error) 55 | this._ledReady = false; 56 | }.bind(this)); 57 | }.bind(this)); 58 | }, 59 | _updateLed() { 60 | if (!this._control || !this._led) 61 | return; 62 | 63 | if (!this._ledReady) 64 | this._initLed(); 65 | 66 | this._port.postMessage({action: "control-led", 67 | control: this._control[this._urgent]}); 68 | }, 69 | _onSettingsRetrieved(settings) { 70 | if (settings.led) { 71 | this._led = settings.led; 72 | this._initLed(); 73 | } 74 | 75 | if (settings.trigger) { 76 | this._setTrigger(settings.trigger); 77 | this._updateLed(); 78 | } 79 | 80 | if (!settings.led || !settings.trigger) 81 | chrome.runtime.openOptionsPage(); 82 | }, 83 | _onSettingsChanged(changes) { 84 | if ("led" in changes) { 85 | this._led = changes.led.newValue; 86 | this._initLed(); 87 | } 88 | 89 | if ("trigger" in changes) 90 | this._setTrigger(changes.trigger.newValue); 91 | 92 | this._updateLed(); 93 | }, 94 | notify() { 95 | this._urgent = 1; 96 | this._updateLed(); 97 | }, 98 | clear() { 99 | this._urgent = 0; 100 | this._updateLed(); 101 | }, 102 | getLeds(callback) { 103 | this._connect(); 104 | this._port.postMessage({action: "get-leds"}); 105 | this._recvMessage(callback); 106 | }, 107 | getLastError(callback) { 108 | this._lastError.then(callback); 109 | } 110 | }; 111 | -------------------------------------------------------------------------------- /extension/manifest.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "blinklight", 3 | "version": "2.2", 4 | "description": "LED notification of urgent tabs on Linux", 5 | "homepage_url": "https://github.com/snoack/chrome-blinklight", 6 | "permissions": [ 7 | "tabs", 8 | "storage", 9 | "webNavigation", 10 | "nativeMessaging", 11 | "" 12 | ], 13 | "background": { 14 | "scripts": [ 15 | "led.js", 16 | "blinklight.js" 17 | ] 18 | }, 19 | "options_ui": { 20 | "page": "options.html", 21 | "chrome_style": true 22 | }, 23 | "icons": { 24 | "32": "icon-32.png", 25 | "128": "icon-128.png" 26 | }, 27 | "minimum_chrome_version": "42", 28 | "manifest_version": 2, 29 | "applications": { 30 | "gecko": { 31 | "id": "blinklight@snoack.addons.mozilla.org", 32 | "strict_min_version": "50.0" 33 | } 34 | }, 35 | "key": "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCprfGX9/itvOCSKlq82T3+YW6kuO/kuggH6AniK3tvfYz+pa4RFOLWxf7q60zWF3uYKzpJj2O3/zmH6FrjGy+cxWDvrChH4c45eTTZNC99l9Xz8/FBsupQHYUBP2FUiLnJ5eHAgAPjSOnAUQSfy+Jhi6fRCpTXX1bPQ8S4Henq4QIDAQAB" 36 | } 37 | -------------------------------------------------------------------------------- /extension/options.css: -------------------------------------------------------------------------------- 1 | html[data-view=settings]:not(.firefox) body { 2 | margin-top: 0; 3 | } 4 | 5 | html.firefox { 6 | font: message-box; 7 | font-size: large; 8 | color: #333; 9 | line-height: 1.8em; 10 | } 11 | 12 | html.firefox #led { 13 | width: 25em; 14 | padding-right: 2em; 15 | } 16 | 17 | html.firefox #no-leds, 18 | html.firefox #os-not-supported, 19 | html.firefox #connection-failed, 20 | .error { 21 | display: inline-block; 22 | background-color: #fee; 23 | border: 1px solid #faa; 24 | border-radius: 3px; 25 | padding: 0.4em 0.8em; 26 | } 27 | 28 | label { 29 | white-space: nowrap; 30 | } 31 | 32 | #settings { 33 | display: flex; 34 | flex-wrap: wrap; 35 | } 36 | 37 | #leds { 38 | display: flex; 39 | flex-wrap: wrap; 40 | } 41 | 42 | #leds .radio { 43 | min-width: 50%; 44 | } 45 | 46 | html:not([data-view=settings]) #settings, 47 | html:not([data-view=no-leds]) #no-leds, 48 | html:not([data-view=os-not-supported]) #os-not-supported, 49 | html:not([data-view=connection-failed]) #connection-failed, 50 | #led:not([data-error=unknown]) #led-error-unknown, 51 | #led:not([data-error=locked]) #led-error-locked { 52 | display: none; 53 | } 54 | -------------------------------------------------------------------------------- /extension/options.html: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | blinklight options 5 | 6 | 7 | 8 |
9 |
10 |

Led

11 |
12 | 20 |

21 | The selected LED cannot be controlled. Possibly the LED 22 | is no longer available or the capabilities of the host 23 | application aren't set correctly. 24 |

25 |

26 | The selected LED is locked, possibly by another browser instance. 27 | (Are you using this extension with multiple browsers or profiles?) 28 |

29 |
30 |
31 |

Trigger

32 |
33 | 37 |
38 |
39 | 43 |
44 |
45 | 49 |
50 |
51 |
52 |

53 | No LEDs were found. If this is a laptop with configurable LEDs, 54 | make sure the required kernel module (e.g. thinkpad_acpi) is loaded. 55 |

56 |

57 | Sorry, this extension only works on Linux. :( 58 |

59 |

60 | It appears that the host application, this extension relies on in order to 61 | control the LEDs, isn't installed, yet. You can 62 | download a package for Debian/Ubuntu, or 63 | build it from source. 64 |

65 | 66 | 67 | 68 | -------------------------------------------------------------------------------- /extension/options.js: -------------------------------------------------------------------------------- 1 | function getDebLink(arch) { 2 | var version = chrome.runtime.getManifest().version; 3 | if (arch == "x86-32") 4 | arch = "i386"; 5 | else if (arch == "x86-64") 6 | arch = "amd64"; 7 | else if (navigator.platform.includes("aarch64")) 8 | arch = "arm64"; 9 | else if (arch == "arm") 10 | arch = "armhf"; 11 | return "https://launchpad.net/~s.noack/+archive/ubuntu/ppa/+files/chrome-blinklight_" + version + "_" + arch + ".deb"; 12 | } 13 | 14 | function checkLedError() { 15 | chrome.runtime.sendMessage("get-last-error", function(error) { 16 | document.getElementById("led").dataset.error = error; 17 | }); 18 | } 19 | 20 | function initSettings(leds) { 21 | var ledRadios = document.getElementById("leds"); 22 | var ledTemplate = document.getElementById("template-led"); 23 | 24 | leds.sort(); 25 | for (var i = 0; i < leds.length; i++) { 26 | var led = leds[i]; 27 | var clone = document.importNode(ledTemplate.content, true); 28 | 29 | clone.querySelector("input").value = led; 30 | clone.querySelector("span").textContent = led; 31 | 32 | ledRadios.appendChild(clone); 33 | } 34 | 35 | chrome.storage.local.get(["led", "trigger"], function(options) { 36 | for (var option in options) { 37 | var input = document.querySelector("input[name='" + option + "'][value='" + options[option] + "']"); 38 | if (input) 39 | input.checked = true; 40 | } 41 | 42 | if ("led" in options) 43 | checkLedError(); 44 | }); 45 | } 46 | 47 | function getLeds() { 48 | chrome.runtime.sendMessage("get-leds", function(leds) { 49 | if (!leds) { 50 | document.documentElement.dataset.view = "connection-failed"; 51 | setTimeout(getLeds, 1000); 52 | } else if (leds.length > 0) { 53 | document.documentElement.dataset.view = "settings"; 54 | initSettings(leds); 55 | } else { 56 | document.documentElement.dataset.view = "no-leds"; 57 | } 58 | }); 59 | } 60 | 61 | chrome.runtime.getPlatformInfo(function(info) { 62 | if (info.os != "linux") 63 | document.documentElement.dataset.view = "os-not-supported"; 64 | else 65 | getLeds(); 66 | document.getElementById("deb-link").href = getDebLink(info.arch); 67 | }); 68 | 69 | document.addEventListener("change", function(event) { 70 | chrome.storage.local.set({[event.target.name]: event.target.value}); 71 | checkLedError(); 72 | }, true); 73 | 74 | if (typeof browser == "object") 75 | document.documentElement.classList.add("firefox"); 76 | -------------------------------------------------------------------------------- /native-messaging-host/Makefile.am: -------------------------------------------------------------------------------- 1 | binary = native-messaging-host 2 | manifest = org.snoack.blinklight.json 3 | 4 | CFLAGS = -O2 -Wall -Wextra -Werror 5 | 6 | pkglibexec_PROGRAMS = $(binary) 7 | native_messaging_host_SOURCES = native-messaging-host.c 8 | native_messaging_host_CPPFLAGS = $(JSONC_CFLAGS) 9 | if STATIC_JSONC 10 | native_messaging_host_LDADD = $(JSONC_LIBDIR)/libjson-c.a 11 | else 12 | native_messaging_host_LDFLAGS = $(JSONC_LIBS) 13 | endif 14 | 15 | manifest_chromedir = /etc/opt/chrome/native-messaging-hosts 16 | manifest_chrome_DATA = chrome/$(manifest) 17 | manifest_chromiumdir = /etc/chromium/native-messaging-hosts 18 | manifest_chromium_DATA = chrome/$(manifest) 19 | manifest_mozdir = /usr/lib/mozilla/native-messaging-hosts 20 | manifest_moz_DATA = gecko/$(manifest) 21 | 22 | chrome/$(manifest) gecko/$(manifest): 23 | @echo "Writing $@" 24 | @mkdir -p $(dir $@) 25 | @echo '{' > $@ 26 | @echo ' "name": "org.snoack.blinklight",' >> $@ 27 | @echo ' "description": "LED notification of urgent tabs",' >> $@ 28 | @echo ' "path": "$(pkglibexecdir)/$(binary)",' >> $@ 29 | @echo ' "type": "stdio",' >> $@ 30 | @if [[ $@ = gecko/* ]]; \ 31 | then echo ' "allowed_extensions": ["blinklight@snoack.addons.mozilla.org"]' >> $@; \ 32 | else echo ' "allowed_origins": ["chrome-extension://jiaipmkogklkpmpabagihfledlejmgaf/"]' >> $@; \ 33 | fi 34 | @echo '}' >> $@ 35 | 36 | install: install-am 37 | if [ -z "$(nosetcap)" ]; then setcap cap_dac_override,cap_sys_module+ep $(pkglibexecdir)/$(binary); fi 38 | 39 | clean: clean-am 40 | rm chrome/$(manifest) 2>/dev/null && rmdir chrome || true 41 | rm gecko/$(manifest) 2>/dev/null && rmdir gecko || true 42 | -------------------------------------------------------------------------------- /native-messaging-host/configure.ac: -------------------------------------------------------------------------------- 1 | AC_INIT(chrome-blinklight, 1.0) 2 | AM_INIT_AUTOMAKE(foreign) 3 | 4 | AC_ARG_WITH(static-jsonc, AS_HELP_STRING([--with-static-jsonc], []), static_jsonc="${withval}") 5 | AM_CONDITIONAL(STATIC_JSONC, [test x$static_jsonc = xyes]) 6 | 7 | AC_PROG_CC 8 | PKG_CHECK_MODULES(JSONC, json-c, [AC_SUBST(JSONC_LIBDIR, `$PKG_CONFIG --variable=libdir json-c`)]) 9 | 10 | AC_CONFIG_FILES(Makefile) 11 | AC_OUTPUT 12 | -------------------------------------------------------------------------------- /native-messaging-host/native-messaging-host.c: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | #include 5 | #include 6 | #include 7 | #include 8 | #include 9 | #include 10 | #include 11 | #include 12 | #include 13 | #include 14 | 15 | #define SYSFS_PATH "/sys/class/leds" 16 | 17 | enum brightness { 18 | BRIGHTNESS_IGNORE = -2, 19 | BRIGHTNESS_UNSET = -1, 20 | BRIGHTNESS_FULL = 255 21 | }; 22 | 23 | enum trigger_status { 24 | TRIGGER_UNKNOWN, 25 | TRIGGER_SUPPORTED, 26 | TRIGGER_ACTIVE 27 | }; 28 | 29 | char *active_led = NULL; 30 | char *old_trigger = NULL; 31 | enum brightness old_brightness = BRIGHTNESS_UNSET; 32 | int trigger_fd = -1; 33 | 34 | #define attr_path(BUF, LED, ATTR) \ 35 | (snprintf((BUF), sizeof(BUF), SYSFS_PATH "/%s/%s", (LED), (ATTR)), (BUF)) 36 | 37 | int get_attr(const char *attr) 38 | { 39 | char path[100]; 40 | FILE *fp = fopen(attr_path(path, active_led, attr), "r"); 41 | int value = -1; 42 | 43 | if (fp != NULL) { 44 | fscanf(fp, "%d", &value); 45 | fclose(fp); 46 | } 47 | 48 | return value; 49 | } 50 | 51 | void set_attr(const char *attr, int value) 52 | { 53 | char path[100]; 54 | FILE* fp = fopen(attr_path(path, active_led, attr), "w"); 55 | 56 | if (fp != NULL) { 57 | fprintf(fp, "%d", value); 58 | fclose(fp); 59 | } 60 | } 61 | 62 | enum trigger_status check_trigger(const char *expected) 63 | { 64 | FILE *fp = fdopen(trigger_fd, "r"); 65 | enum trigger_status status = TRIGGER_UNKNOWN; 66 | char buf[100]; 67 | 68 | fseek(fp, 0, SEEK_SET); 69 | while ((status == TRIGGER_UNKNOWN || old_trigger == NULL) && 70 | fscanf(fp, "%99s", buf) == 1) { 71 | if (buf[0] == '[') { 72 | int len = strlen(buf) - 2; 73 | 74 | strncpy(buf, buf + 1, len); 75 | buf[len] = 0; 76 | 77 | if (strcmp(buf, expected) == 0) 78 | status = TRIGGER_ACTIVE; 79 | 80 | if (old_trigger == NULL) 81 | old_trigger = strdup(buf); 82 | } else if (strcmp(buf, expected) == 0) 83 | status = TRIGGER_SUPPORTED; 84 | } 85 | 86 | return status; 87 | } 88 | 89 | void load_trigger_module(const char *trigger) 90 | { 91 | struct utsname info; 92 | char path[100]; 93 | int fd; 94 | 95 | uname(&info); 96 | snprintf(path, sizeof(path), 97 | "/lib/modules/%s/kernel/drivers/leds/trigger/ledtrig-%s.ko", 98 | info.release, trigger); 99 | 100 | fd = open(path, O_RDONLY); 101 | if (fd < 0) 102 | return; 103 | 104 | syscall(__NR_finit_module, fd, "", 0); 105 | close(fd); 106 | } 107 | 108 | void control_led(const char *trigger, enum brightness brightness) 109 | { 110 | enum trigger_status trigger_status = check_trigger(trigger); 111 | 112 | // If the brightness is supposed to be overridden (indicated by a non-negative 113 | // value), and isn't overridden currently, backup the previous brightness. 114 | if (brightness >= 0 && old_brightness < 0) 115 | old_brightness = get_attr("brightness"); 116 | 117 | // If the brightness is supposed to be set to the orignal value, and is 118 | // overridden currently, restore the previous brightness. 119 | if (brightness == BRIGHTNESS_UNSET && old_brightness >= 0) { 120 | brightness = old_brightness; 121 | old_brightness = BRIGHTNESS_UNSET; 122 | 123 | // If a brightness of 0 is supposed to be restored, set the brightness 124 | // before the trigger, otherwise the trigger will be reverted to "none". 125 | // However, we cannot set positive brightness values before setting the 126 | // trigger, because some triggers reset the brightness to 0. 127 | if (brightness == 0) { 128 | set_attr("brightness", brightness); 129 | brightness = BRIGHTNESS_IGNORE; 130 | } 131 | } 132 | 133 | if (trigger_status != TRIGGER_ACTIVE) { 134 | // If the brightness is neither going to be overridden nor to be restored from 135 | // a previous value, restore it to its current value after changing the trigger. 136 | if (brightness == BRIGHTNESS_UNSET) 137 | brightness = get_attr("brightness"); 138 | 139 | // Don't set the brightness to 0 after changing the trigger, since this 140 | // would revert the trigger to "none". 141 | if (brightness == 0) 142 | brightness = BRIGHTNESS_IGNORE; 143 | 144 | if (trigger_status == TRIGGER_UNKNOWN) 145 | load_trigger_module(trigger); 146 | 147 | write(trigger_fd, trigger, strlen(trigger)); 148 | 149 | // When setting the brightness to quickly after transitioning from/to 150 | // the "timer" trigger, the kernel gets stuck. While the sysfs indicates 151 | // the new trigger, the old trigger remains in effect. 152 | if (brightness >= 0) 153 | usleep(1000); 154 | } 155 | 156 | if (brightness > 0 && strcmp(trigger, "oneshot") == 0) 157 | set_attr("invert", 1); 158 | 159 | if (brightness >= 0) 160 | set_attr("brightness", brightness); 161 | } 162 | 163 | void handle_control_led(json_object *jobj_input) 164 | { 165 | json_object *jobj_control; 166 | const char *control; 167 | 168 | if (active_led == NULL) 169 | return; 170 | if (!json_object_object_get_ex(jobj_input, "control", &jobj_control)) 171 | return; 172 | 173 | control = json_object_get_string(jobj_control); 174 | if (strcmp(control, "on") == 0) 175 | control_led("none", BRIGHTNESS_FULL); 176 | else if (strcmp(control, "off") == 0) 177 | control_led("none", 0); 178 | else if (strcmp(control, "clear") == 0) 179 | control_led("none", BRIGHTNESS_UNSET); 180 | else if (strcmp(control, "timer") == 0) 181 | control_led("timer", BRIGHTNESS_UNSET); 182 | else if (strcmp(control, "oneshot") == 0) { 183 | control_led("oneshot", BRIGHTNESS_UNSET); 184 | set_attr("shot", 1); 185 | } 186 | } 187 | 188 | json_object *handle_set_led(json_object *jobj_input) 189 | { 190 | json_object *jobj_led; 191 | const char *led; 192 | char path[100]; 193 | int fd; 194 | 195 | if (old_trigger != NULL) { 196 | control_led(old_trigger, BRIGHTNESS_UNSET); 197 | free(old_trigger); 198 | old_trigger = NULL; 199 | } 200 | 201 | if (active_led != NULL) { 202 | free(active_led); 203 | active_led = NULL; 204 | } 205 | 206 | if (trigger_fd >= 0) { 207 | close(trigger_fd); 208 | trigger_fd = -1; 209 | } 210 | 211 | if (!json_object_object_get_ex(jobj_input, "led", &jobj_led) || 212 | strchr(led = json_object_get_string(jobj_led), '/') != NULL || 213 | (fd = open(attr_path(path, led, "trigger"), O_RDWR)) < 0) 214 | return json_object_new_string("unknown"); 215 | 216 | if (flock(fd, LOCK_EX | LOCK_NB) < 0) 217 | { 218 | close(fd); 219 | return json_object_new_string("locked"); 220 | } 221 | 222 | active_led = strdup(led); 223 | trigger_fd = fd; 224 | 225 | return NULL; 226 | } 227 | 228 | json_object* handle_get_leds() 229 | { 230 | json_object *jobj = json_object_new_array(); 231 | DIR *dir = opendir(SYSFS_PATH); 232 | struct dirent *entry; 233 | 234 | if (dir) { 235 | while ((entry = readdir(dir)) != NULL) { 236 | if (strcmp(entry->d_name, ".") != 0 && strcmp(entry->d_name, "..") != 0) 237 | json_object_array_add(jobj, json_object_new_string(entry->d_name)); 238 | } 239 | closedir(dir); 240 | } 241 | 242 | return jobj; 243 | } 244 | 245 | int setup_sigfd() 246 | { 247 | sigset_t sigset; 248 | 249 | sigemptyset(&sigset); 250 | sigaddset(&sigset, SIGTERM); 251 | sigaddset(&sigset, SIGINT); 252 | sigaddset(&sigset, SIGHUP); 253 | sigprocmask(SIG_BLOCK, &sigset, NULL); 254 | 255 | return signalfd(-1, &sigset, 0); 256 | } 257 | 258 | int main() 259 | { 260 | json_tokener *tokener = json_tokener_new(); 261 | char *input; 262 | unsigned int input_len; 263 | 264 | struct pollfd fds[] = { 265 | { .fd = STDIN_FILENO, .events = POLLIN }, 266 | { .fd = setup_sigfd(), .events = POLLIN } 267 | }; 268 | 269 | while (poll(fds, 2, -1) >= 0 && fds[1].revents == 0 && 270 | read(STDIN_FILENO, &input_len, sizeof(input_len)) == sizeof(input_len) && 271 | (input = malloc(input_len)) != NULL && 272 | read(STDIN_FILENO, input, input_len) == (ssize_t) input_len) { 273 | json_object *jobj_input; 274 | json_object *jobj_output = NULL; 275 | const char *output; 276 | unsigned int output_len; 277 | 278 | jobj_input = json_tokener_parse_ex(tokener, input, input_len); 279 | free(input); 280 | 281 | if (jobj_input) { 282 | json_object *jobj_action; 283 | 284 | if (json_object_object_get_ex(jobj_input, "action", &jobj_action)) { 285 | const char *action = json_object_get_string(jobj_action); 286 | 287 | if (strcmp(action, "control-led") == 0) 288 | handle_control_led(jobj_input); 289 | else if (strcmp(action, "set-led") == 0) 290 | jobj_output = handle_set_led(jobj_input); 291 | else if (strcmp(action, "get-leds") == 0) 292 | jobj_output = handle_get_leds(); 293 | } 294 | 295 | json_object_put(jobj_input); 296 | } 297 | 298 | output = json_object_to_json_string(jobj_output); 299 | output_len = strlen(output); 300 | write(STDOUT_FILENO, &output_len, sizeof(output_len)); 301 | write(STDOUT_FILENO, output, output_len); 302 | 303 | json_object_put(jobj_output); 304 | } 305 | 306 | if (old_trigger != NULL) 307 | control_led(old_trigger, BRIGHTNESS_UNSET); 308 | 309 | return 0; 310 | } 311 | --------------------------------------------------------------------------------