├── .gitignore ├── Gruntfile.js ├── LICENSE ├── README.md ├── build ├── justice.mapped.min.js ├── justice.mapped.min.js.map └── justice.min.js ├── examples ├── simple.html └── vendor │ └── jquery.min.js ├── log └── .gitkeep ├── package.json └── src ├── js ├── justice.cache.js ├── justice.collectors.js ├── justice.js ├── justice.mungers.js ├── justice.render.chart.js ├── justice.render.js └── justice.render.utils.js └── scss └── justice.scss /.gitignore: -------------------------------------------------------------------------------- 1 | TODO.txt 2 | node_modules 3 | .sass-cache 4 | tmp/* 5 | log/* 6 | -------------------------------------------------------------------------------- /Gruntfile.js: -------------------------------------------------------------------------------- 1 | module.exports = function(grunt) { 2 | 3 | grunt.initConfig({ 4 | 5 | watch: { 6 | files: ['src/**', 'examples/**'], 7 | tasks: ['build'], 8 | options: { 9 | livereload: true, 10 | }, 11 | }, 12 | 13 | clean: ['tmp', 'build'], 14 | 15 | sass: { 16 | dist: { 17 | options: { 18 | outputStyle: 'compressed' 19 | }, 20 | files: { 21 | 'tmp/justice.css': 'src/scss/justice.scss' 22 | } 23 | } 24 | }, 25 | 26 | autoprefixer: { 27 | dist: { 28 | files: { 29 | 'tmp/justice.css': 'tmp/justice.css' 30 | }, 31 | }, 32 | }, 33 | 34 | css2js: { 35 | main: { 36 | src: 'tmp/justice.css', 37 | dest: 'tmp/justice.css.js' 38 | } 39 | }, 40 | 41 | includes: { 42 | js: { 43 | options: { 44 | duplicates: false, 45 | debug: true, 46 | silent: false 47 | }, 48 | files: [{ 49 | src: 'src/js/justice.js', 50 | dest: 'tmp/justice.all.js', 51 | includePath: 'src' 52 | }], 53 | } 54 | }, 55 | 56 | uglify: { 57 | min: { 58 | options: { 59 | mangle: true 60 | }, 61 | files: { 62 | 'build/justice.min.js': ['tmp/justice.css.js', 'tmp/justice.all.js'] 63 | }, 64 | }, 65 | minMapped: { 66 | options: { 67 | mangle: true, 68 | sourceMap: true, 69 | }, 70 | files: { 71 | 'build/justice.mapped.min.js': ['tmp/justice.css.js', 'tmp/justice.all.js'] 72 | }, 73 | }, 74 | beauty: { 75 | options: { 76 | beautify: { 77 | beautify: true, 78 | indent_level: 2 79 | }, 80 | mangle: false, 81 | }, 82 | files: { 83 | 'build/justice.js': ['tmp/justice.css.js', 'tmp/justice.all.js'] 84 | } 85 | } 86 | }, 87 | 88 | shell: { 89 | options: { 90 | stderr: true 91 | }, 92 | logSize: { 93 | command: 'echo `git rev-parse --short HEAD && date +"%m/%d/%y %T:%S" && stat -f%z build/justice.min.js && echo "bytes"` >> log/size-log.txt' 94 | } 95 | }, 96 | 97 | }); 98 | 99 | 100 | grunt.loadNpmTasks('grunt-contrib-watch'); 101 | grunt.loadNpmTasks('grunt-contrib-uglify'); 102 | grunt.loadNpmTasks('grunt-sass'); 103 | grunt.loadNpmTasks('grunt-autoprefixer'); 104 | grunt.loadNpmTasks('grunt-css2js'); 105 | grunt.loadNpmTasks('grunt-includes'); 106 | grunt.loadNpmTasks('grunt-contrib-clean'); 107 | grunt.loadNpmTasks('grunt-shell'); 108 | 109 | grunt.registerTask('build', ['clean', 'sass', 'autoprefixer', 'css2js:main', 'includes:js', 'uglify:min', 'uglify:minMapped', 'shell:logSize']); 110 | grunt.registerTask('default', ['build', 'watch']); 111 | }; -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2014 Jason Ormand 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | Justice.js 2 | ================================================== 3 | ![ScreenShot](http://i.imgur.com/zKaj6fD.png) 4 | Justice will create an on page toolbar that displays page timing metrics and a streaming fps meter. Budgets are also supported for timing metrics. 5 | [> DEMO <](http://okor.github.io/justice/) 6 | ====== 7 | 8 | Budget results are color coded based on budgets: 9 | - Over budget: Red 10 | - > 80% budget: Yellow 11 | - Under budget: Green 12 | 13 | The FPS meter does not support budgets at this time but does color code the spline (or optional dot type) chart, assuming a goal of 60 FPS. 14 | 15 | The "requests" metric also supports budgets and is unique in that it polls for changes to that metric over time, since most webpages these days load a boat load of stuff async after page load. In the future it would be possible to seperate this metric into "Sync Requests" and "Async Requests". But not right now. 16 | 17 | The tiny button in the lower right hand corner is a simple hide show with localstorage persistance. 18 | 19 | 20 | ** Justice is under active development and the API may change. ** 21 | 22 | 23 | Why 24 | === 25 | The goal of this project is to provide insight into the performance of a webpage. I would refer to it as a "high level performance discovery tool". My vision for the tool is to allow developers, support team members and anyone interested to discover troublesome performance issues that might not have been previously known. Networks like Vox Media for instance, have many data, media and page types which could end up being manifested in many different combinations. Justice can be rolled out to authenticated users so they can become more aware of perf as they browse their own sites and applications. 26 | 27 | Once a page shows signs of performance issues, next steps would likely include recording the performance violation and escalating investigation into the whys - using more robust tools like Chromes dev tools or whatever the team is using for deep performance debugging. 28 | 29 | I am considering adding a reporting agent to make recording violations easier, which would probably be an optional callback provided to the Justice initializer. Then one could push the violation data set to some arbitrary endpoint. 30 | 31 | ## Use 32 | Simple 33 | ```html 34 | 35 | 38 | ``` 39 | With options 40 | ```html 41 | 42 | 56 | ``` 57 | 58 | ## Develop 59 | The default grunt process will watch files for changes and handle builds. I keep examples/simple.html open in a browser, which will automatically be refreshed on build. 60 | ```sh 61 | npm install 62 | grunt 63 | ``` 64 | I like to keep an eye on fill size, so you can additionally watch that. 65 | ```sh 66 | watch tail log/size-log.txt 67 | ``` 68 | 69 | 70 | ## Contribute 71 | Pull requests are always welcome. Before you plan a PR, please ensure the values and functionality listed below will be maintained with your PR. 72 | 73 | Checkout the to do list: https://waffle.io/okor/justice 74 | 75 | #### Core Values: 76 | - Easily embeddable 77 | - No dependencies 78 | - As small as possible 79 | - Render itself at 60fps or greater 80 | 81 | 82 | #### Core Functionality: 83 | - Load times 84 | - FPS 85 | - works in modern browsers + graceful failure [TODO] 86 | 87 | 88 | #### Roadmap 89 | - console.log'ish proxy 90 | - window on error log 91 | - bookmarklet 92 | - cdn.js release 93 | - npm release 94 | - chrome plugin 95 | 96 | #### Release versioning 97 | - `..`, ex: 0.1.8 98 | 99 | -------------------------------------------------------------------------------- /build/justice.mapped.min.js: -------------------------------------------------------------------------------- 1 | "use strict";!function(){var a=".justice{position:fixed;bottom:0;left:0;right:0;background:black;padding:0 10px 10px 10px;box-sizing:border-box;font-size:12px;font-family:monospace;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-flow:row wrap;-ms-flex-flow:row wrap;flex-flow:row wrap;-webkit-box-pack:justify;-webkit-justify-content:space-between;-ms-flex-pack:justify;justify-content:space-between;z-index:2147483647;-webkit-transition:400ms ease-in-out;transition:400ms ease-in-out;direction:ltr}@media (min-width: 1235px){.justice{padding-bottom:10px;}}.justice.closed{-webkit-transform:translateY(100%);-ms-transform:translateY(100%);transform:translateY(100%)}.justice .justice-metric-wrap{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-flex-flow:wrap;-ms-flex-flow:wrap;flex-flow:wrap;-webkit-box-pack:justify;-webkit-justify-content:space-between;-ms-flex-pack:justify;justify-content:space-between}.justice .justice-metric{height:40px;display:inline-block;display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:center;-webkit-align-items:center;-ms-flex-align:center;align-items:center;margin:10px 10px 0 0}.justice .justice-metric.chart{width:300px}.justice .justice-title{text-transform:uppercase;padding:3px 0.5em 3px 3px;color:#dfdfdf}.justice .justice-text{color:#dfdfdf;font-weight:600}.justice .justice-text.pass{color:#419ba3}.justice .justice-text.warn{color:#d4ca3d}.justice .justice-text.fail{color:#ce452d}.justice .justice-toggle{width:20px;height:20px;cursor:pointer;background-color:black;position:absolute;right:0;top:-20px;opacity:0.5;border-top-left-radius:50%;-webkit-transition:400ms ease-in-out;transition:400ms ease-in-out}@media only screen and (min-device-pixel-ratio: 1.1){.justice .justice-toggle{width:40px;height:40px;top:-40px;}}.justice .justice-toggle:after{content:'';position:absolute;width:50%;height:50%;border-radius:100%;margin:5px;background-color:#dfdfdf;-webkit-transition:400ms ease-in-out;transition:400ms ease-in-out}@media only screen and (min-device-pixel-ratio: 1.1){.justice .justice-toggle:after{margin:10px;}}.justice.closed .justice-toggle{opacity:1}.justice.closed .justice-toggle:after{background-color:#419ba3}",b=document.createElement("style");if(document.getElementsByTagName("head")[0].appendChild(b),b.styleSheet)b.styleSheet.disabled||(b.styleSheet.cssText=a);else try{b.innerHTML=a}catch(c){b.innerText=a}}();var Justice=function(){function a(a){var b={},a=a||{};for(var c in W)b[c]=W[c];for(var c in a)b[c]=a[c];return b}function b(a,b,c){for(var d in a.metrics)b[d]=c[d]}function c(){return O.loadEventStart-O.navigationStart}function d(){return O.domComplete-O.domLoading}function e(){return O.domInteractive-O.domLoading}function f(){var a=0;return window.chrome&&window.chrome.loadTimes?(a=1e3*window.chrome.loadTimes().firstPaintTime,a-=1e3*window.chrome.loadTimes().startLoadTime,a.toFixed(0)):"number"==typeof window.performance.timing.msFirstPaint?(a=window.performance.timing.msFirstPaint,a-=window.performance.timing.navigationStart,a.toFixed(0)):"¯\\_(ツ)_/¯"}function g(){return performance.getEntries?performance.getEntries().length:"¯\\_(ツ)_/¯"}function h(){return O.responseStart-O.connectEnd}function i(a){if(T){var b=(a-T)/1e3,c=1/b,d=c>60?60:Math.floor(c);R=d,S.push([d,d]),S.length>L&&S.shift(),T=a}else T=a}function j(a,b){var c="";return c=a>b?"fail":a>b*X.warnThreshold?"warn":"pass"}function k(a,b,c){var d=b.collector(),e=j(d,c);return['
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51 |

justice.js

52 | 53 | 54 | github.com/okor/justice 55 | | @okor 56 | 57 | 58 |

How to use

59 | 
 60 |   <script type="text/javascript" src="justice.min.js"></script>
 61 |   <script type="text/javascript">
 62 |     Justice.init();
 63 |   </script>
 64 |
65 | 66 |

With options

67 | 
 68 |   <script type="text/javascript" src="justice.min.js"></script>
 69 |   <script type="text/javascript">
 70 |     Justice.init({
 71 |       metrics: {
 72 |         TTFB:             { budget: 200   },
 73 |         domInteractive:   { budget: 250   },
 74 |         domComplete:      { budget: 800   },
 75 |         firstPaint:       { budget: 1000  },
 76 |         pageLoad:         { budget: 2000  },
 77 |         requests:         { budget: 6     },
 78 |       },
 79 |       warnThreshold: 0.08,
 80 |       showFPS: true,
 81 |       chartType: 'spline'
 82 |     });
 83 |   </script>
 84 |
85 |
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