├── .gitignore
├── LICENSE
├── README.md
├── dist
    └── box-model-inspector.js
├── docs
    ├── box-model.css
    └── index.html
├── lib
    └── index.js
├── package.json
└── rollup.config.js


/.gitignore:
--------------------------------------------------------------------------------
1 | .DS_Store
2 | node_modules
3 | npm-debug.log
4 | tmp
5 | 


--------------------------------------------------------------------------------
/LICENSE:
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1 | Copyright (c) 2016 Andy Axton
2 | 
3 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
4 | 
5 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
6 | 
7 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
8 | 


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/README.md:
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  1 | ## Box Model Inspector
  2 | Devtools style dom node inspector. Highlights the CSS box model just like chrome devtools. Draws a box around a given element highlighting width, height, margin, border & padding.
  3 | 
  4 | Demo: http://a-axton.github.io/box-model-inspector/
  5 | 
  6 | ##### Caveats
  7 | - Expects box-sizing border-box
  8 | - Doesn't work well with fixed position elements. It highlights properly but won't stay in the proper position when scrolling.
  9 | 
 10 | ### Installation
 11 | #### npm
 12 | ```bash
 13 | npm install box-model-inspector --save
 14 | ```
 15 | #### inline
 16 | ```html
 17 | <script type="text/javascript" src="/path/dist/box-model-inspector.js"></script>
 18 | ```
 19 | ### Theming
 20 | ```css
 21 | * { box-sizing: border-box; }
 22 | 
 23 | /* CONTENT */
 24 | .box-model .content {
 25 |   background: rgba(109, 238, 245, 0.5);
 26 | }
 27 | 
 28 | /* MARGIN */
 29 | .box-model .margin {}
 30 | .box-model .marginTop {}
 31 | .box-model .marginRight {}
 32 | .box-model .marginBottom {}
 33 | .box-model .marginLeft {}
 34 | .box-model .margin div {
 35 |   background: rgba(251, 176, 91, 0.65);
 36 | }
 37 | 
 38 | /* PADDING */
 39 | .box-model .padding {}
 40 | .box-model .paddingTop {}
 41 | .box-model .paddingRight {}
 42 | .box-model .paddingBottom {}
 43 | .box-model .paddingLeft {}
 44 | .box-model .padding div {
 45 |   background: rgba(139, 234, 127, 0.65);
 46 | }
 47 | 
 48 | /* BORDER */
 49 | .box-model .border {}
 50 | .box-model .borderTop {}
 51 | .box-model .borderRight {}
 52 | .box-model .borderBottom {}
 53 | .box-model .borderLeft {}
 54 | .box-model .border div {
 55 |   background-color: rgba(234, 228, 105, .8);
 56 | }
 57 | ```
 58 | 
 59 | ### Sample Usage
 60 | ```js
 61 | var BoxModelInspector = require('box-model-inspector');
 62 | 
 63 | // all options are optional
 64 | var boxModelInspector = new BoxModelInspector({
 65 |   // initial element to highlight
 66 |   el: document.querySelectorAll('.example')[0],
 67 |   // custom class, defaults to 'box-model'
 68 |   className: 'box-model',
 69 |   // will append to element, uses body as default
 70 |   appendTo: document.body
 71 | });
 72 | 
 73 | // set new element to be highlighted
 74 | document.body.addEventListener('mousemove', function(e) {
 75 |   boxModelInspector.setElement(e.target);
 76 |   e.stopPropagation();
 77 | });
 78 | 
 79 | // refresh dimensions
 80 | window.addEventListener('resize', function() {
 81 |   boxModelInspector.refresh();
 82 | });
 83 | ```
 84 | 
 85 | ### Methods
 86 | #### setElement
 87 | ___
 88 | Set new element to highlight
 89 | ##### Example
 90 | ```js
 91 | var el = document.getElementById('el');
 92 | boxModelInspector.setElement(el);
 93 | ```
 94 | #### refresh
 95 | ___
 96 | Refresh current element's box model
 97 | ##### Example
 98 | ```js
 99 | window.addEventListener('resize', function() {
100 |   boxModelInspector.refresh();
101 | });
102 | ```
103 | #### hide
104 | ___
105 | Hide it
106 | ##### Example
107 | ```js
108 | boxModelInspector.hide();
109 | ```
110 | #### show
111 | ___
112 | Show it
113 | ##### Example
114 | ```js
115 | boxModelInspector.show();
116 | ```
117 | 
118 | 


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/dist/box-model-inspector.js:
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1 | !function(t,e){"object"==typeof exports&&"undefined"!=typeof module?module.exports=e():"function"==typeof define&&define.amd?define(e):t.BoxModelInspector=e()}(this,function(){"use strict";function t(t){t=t||{},this.el=t.el,this._className=t.className,this._appendTo=t.appendTo,this.el?(this._elComputedStyles=window.getComputedStyle(this.el),this.boxModel=this._buildDomNodes(),this.refresh()):this.boxModel=this._buildDomNodes()}return t.prototype._buildDomNodes=function(){var t;this._parentElement=document.createElement("div");var e='<div class="content"></div><div class="margin"><div class="marginTop"></div><div class="marginRight"></div><div class="marginBottom"></div><div class="marginLeft"></div></div><div class="padding"><div class="paddingTop"></div><div class="paddingRight"></div><div class="paddingBottom"></div><div class="paddingLeft"></div></div><div class="border"><div class="borderTop"></div><div class="borderRight"></div><div class="borderBottom"></div><div class="borderLeft"></div></div><div class="element"></div>';return this._parentElement.classList.add(this._className||"box-model"),this._parentElement.innerHTML=e,this._appendTo?this._appendTo.appendChild(this._parentElement):document.body.appendChild(this._parentElement),t=this._buildNodeReferences(this._parentElement.childNodes),t.wrapper.setAttribute("style","position: absolute; pointer-events: none;"),t.content.wrapper.setAttribute("style","position: relative; width: 100%; height: 100%; z-index: 200;"),t.margin.wrapper.setAttribute("style","position: absolute; top: 0; left: 0; z-index: 190;"),t.padding.wrapper.setAttribute("style","position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 195;"),t.border.wrapper.setAttribute("style","position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 195;"),[t.padding,t.margin,t.border].forEach(function(t){for(var e in t)"wrapper"!==e&&t[e].setAttribute("style","position: absolute; background-attachment: fixed;")}),t},t.prototype._buildNodeReferences=function(t,e){for(var i={wrapper:this._parentElement},o=0;o<t.length;o++){var p,r=t[o],s=r.childNodes;e?e[r.classList[0]]=r:s&&(p=i[r.classList[0]]={},p.wrapper=r,this._buildNodeReferences(s,p))}return i},t.prototype._calculatePadding=function(){var t=this.boxModel.padding,e=this.boxModel.border,i=this.boxModel.content,o=this._elComputedStyles,p=this._elDimensions,r=parseFloat(o.borderLeftWidth),s=parseFloat(o.borderRightWidth),d=parseFloat(o.borderTopWidth),l=parseFloat(o.borderBottomWidth),a=parseFloat(o.paddingLeft),h=parseFloat(o.paddingRight),n=parseFloat(o.paddingTop),g=parseFloat(o.paddingBottom);i.wrapper.style.width=p.outerWidth-a-h-r-s+"px",i.wrapper.style.height=p.outerHeight-n-g-d-l+"px",i.wrapper.style.left=a+r+"px",i.wrapper.style.top=n+d+"px",i.wrapper.style["background-position"]=r+"px 0px",e.wrapper.style.width=p.outerWidth+"px",e.wrapper.style.height=p.outerHeight+"px",e.wrapper.style.left="0px",e.wrapper.style.top="0px",e.wrapper.style["background-position"]=r+"px 0px",t.wrapper.style.width=p.outerWidth-r-s+"px",t.wrapper.style.height=p.outerHeight-d-l+"px",t.wrapper.style.left=r+"px",t.wrapper.style.top=d+"px",t.wrapper.style["background-position"]=r+"px 0px",e.borderTop.style.height=d+"px",e.borderTop.style.width=p.outerWidth+"px",e.borderTop.style.top="0px",e.borderTop.style.left="0px",e.borderRight.style.height=p.outerHeight-d-l+"px",e.borderRight.style.width=s+"px",e.borderRight.style.top=d+"px",e.borderRight.style.right="0px",e.borderBottom.style.height=l+"px",e.borderBottom.style.width=p.outerWidth+"px",e.borderBottom.style.left="0px",e.borderBottom.style.bottom="0px",e.borderLeft.style.height=p.outerHeight-d-l+"px",e.borderLeft.style.width=r+"px",e.borderLeft.style.top=d+"px",e.borderLeft.style.left="0px",t.paddingTop.style.height=n+"px",t.paddingTop.style.width=p.outerWidth-r-s+"px",t.paddingTop.style.top="0px",t.paddingTop.style.left="0px",t.paddingRight.style.height=p.outerHeight-n-g-d-l+"px",t.paddingRight.style.width=h+"px",t.paddingRight.style.top=n+"px",t.paddingRight.style.right="0px",t.paddingBottom.style.height=g+"px",t.paddingBottom.style.width=p.outerWidth-r-s+"px",t.paddingBottom.style.bottom="0px",t.paddingBottom.style.left="0px",t.paddingLeft.style.height=p.outerHeight-n-g-d-l+"px",t.paddingLeft.style.width=a+"px",t.paddingLeft.style.top=n+"px",t.paddingLeft.style.left="0px"},t.prototype._calculateMargin=function(){var t=this.boxModel.margin,e=this._elComputedStyles,i=this._elDimensions,o=parseFloat(e.marginLeft),p=parseFloat(e.marginRight),r=parseFloat(e.marginTop),s=parseFloat(e.marginBottom);t.wrapper.style.width=i.outerWidth+o+p+"px",t.wrapper.style.height=i.outerHeight+r+s+"px",t.wrapper.style.left=o*-1+"px",t.wrapper.style.top=r*-1+"px",t.marginTop.style.height=r+"px",t.marginTop.style.width=i.outerWidth+o+p+"px",t.marginRight.style.height=i.outerHeight+"px",t.marginRight.style.width=p+"px",t.marginRight.style.top=r+"px",t.marginRight.style.right="0px",t.marginBottom.style.height=s+"px",t.marginBottom.style.width=i.outerWidth+o+p+"px",t.marginBottom.style.bottom="0px",t.marginLeft.style.height=i.outerHeight+"px",t.marginLeft.style.width=o+"px",t.marginLeft.style.top=r+"px"},t.prototype.setElement=function(t){return this.el=t,this._elComputedStyles=window.getComputedStyle(t),this.refresh(),this},t.prototype.hide=function(){return this.boxModel.hidden=!0,this.boxModel.wrapper.style.display="none",this},t.prototype.show=function(){return this.boxModel.hidden=!1,this.refresh(),this},t.prototype.refresh=function(){if(!this.boxModel.hidden){var t=this.el,e={offset:{left:t.offsetLeft,top:t.offsetTop},width:t.clientWidth,height:t.clientHeight,outerHeight:t.offsetHeight,outerWidth:t.offsetWidth};return this._elDimensions=e,this.boxModel.wrapper.style.display="block",this.boxModel.wrapper.style.left=e.offset.left+"px",this.boxModel.wrapper.style.top=e.offset.top+"px",this.boxModel.wrapper.style.height=e.outerHeight+"px",this.boxModel.wrapper.style.width=e.outerWidth+"px",this._calculatePadding(),this._calculateMargin(),this}},t});
2 | 


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/docs/box-model.css:
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 1 | * { box-sizing: border-box; }
 2 | 
 3 | /* CONTENT */
 4 | .box-model .content {
 5 |   background: rgba(109, 238, 245, 0.5);
 6 | }
 7 | 
 8 | /* MARGIN */
 9 | .box-model .margin {}
10 | .box-model .marginTop {}
11 | .box-model .marginRight {}
12 | .box-model .marginBottom {}
13 | .box-model .marginLeft {}
14 | .box-model .margin div {
15 |   background: rgba(251, 176, 91, 0.65);
16 | }
17 | 
18 | /* PADDING */
19 | .box-model .padding {}
20 | .box-model .paddingTop {}
21 | .box-model .paddingRight {}
22 | .box-model .paddingBottom {}
23 | .box-model .paddingLeft {}
24 | .box-model .padding div {
25 |   background: rgba(139, 234, 127, 0.65);
26 | }
27 | 
28 | /* BORDER */
29 | .box-model .border {}
30 | .box-model .borderTop {}
31 | .box-model .borderRight {}
32 | .box-model .borderBottom {}
33 | .box-model .borderLeft {}
34 | .box-model .border div {
35 |   background-color: rgba(234, 228, 105, .8);
36 | }
37 | 
38 | 


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/docs/index.html:
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  1 | <!DOCTYPE html>
  2 | <html lang="en">
  3 |   <head>
  4 |     <meta charset="utf-8">
  5 |     <title>Javascript Box Model Inspector</title>
  6 |     <link href='http://fonts.googleapis.com/css?family=Montserrat:400,700|Slabo+27px' rel='stylesheet' type='text/css'>
  7 |     <style>
  8 |       /* http://meyerweb.com/eric/tools/css/reset/ v2.0 | 20110126 License: none (public domain) */ html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td, article, aside, canvas, details, embed, figure, figcaption, footer, header, hgroup, menu, nav, output, ruby, section, summary, time, mark, audio, video {margin: 0; padding: 0; border: 0; font-size: 100%; font: inherit; vertical-align: baseline; } /* HTML5 display-role reset for older browsers */ article, aside, details, figcaption, figure, footer, header, hgroup, menu, nav, section {display: block; } body {line-height: 1; } ol, ul {list-style: none; } blockquote, q {quotes: none; } blockquote:before, blockquote:after, q:before, q:after {content: ''; content: none; } table {border-collapse: collapse; border-spacing: 0; }
  9 |       
 10 |       body {
 11 |         background: #36384C;
 12 |         font-family: 'Montserrat', sans-serif;
 13 |       }
 14 | 
 15 |       .container {
 16 |         max-width: 950px;
 17 |         margin: 0 auto;
 18 |         padding: 12vh 0;
 19 |         text-align: center;
 20 |       }
 21 | 
 22 |       h1 {
 23 |         font-size: 36px;
 24 |         padding-bottom: 20px;
 25 |         color: #D7D9F1;
 26 |       }
 27 | 
 28 |       p {
 29 |         font-size: 19px;
 30 |         color: #D7D9F1;
 31 |         font-weight: 300;
 32 |         font-family: 'Helvetica Nueue', sans-serif;
 33 |         padding-bottom: 6px;
 34 |       }
 35 | 
 36 |       .example {
 37 |         padding: 20px 10%;
 38 |         margin: 60px 0;
 39 |         text-align: center;
 40 |       }
 41 | 
 42 |       .example:after {
 43 |         visibility: hidden;
 44 |         display: block;
 45 |         font-size: 0;
 46 |         content: " ";
 47 |         clear: both;
 48 |         height: 0;
 49 |       }
 50 | 
 51 |       .example h2 {
 52 |         color: #444761;
 53 |         font-size: 26px;
 54 |         margin: 8px 0;
 55 |         padding: 12px 0;
 56 |         font-weight: 700;
 57 |       }
 58 | 
 59 |       .example h3 {
 60 |         color: #444761;
 61 |         font-size: 18px;
 62 |         font-weight: 700;
 63 |         padding: 80px 0;    
 64 |       }
 65 | 
 66 |       .example p {
 67 |         color: #444761;
 68 |         font-size: 16px;
 69 |       }
 70 | 
 71 |       .example div, .example {
 72 |         border: 2px solid #444761;
 73 |       }
 74 | 
 75 |       .example div {
 76 |         padding: 0 30px;
 77 |         margin-bottom: 15px;
 78 |         float: left;
 79 |         margin-right: 2%;
 80 |         width: 24%;
 81 |       }
 82 | 
 83 |       .example div:first-of-type {
 84 |         width: 48%;
 85 |       }
 86 | 
 87 |       .example div:last-of-type {
 88 |         margin-right: 0;
 89 |       }
 90 | 
 91 |       button {
 92 |         background: #444761;
 93 |         padding: 24px 16px;
 94 |         line-height: 18px;
 95 |         border: 0;
 96 |         color: #D7D9F1;
 97 |         font-size: 20px;
 98 |         margin: 6px 4px;
 99 |       }
100 | 
101 |       button:focus {
102 |         outline: 0;
103 |       }
104 | 
105 |       button.active {
106 |         background: #51d8f0;
107 |       }
108 | 
109 |     </style>
110 |     <link rel="stylesheet" href="box-model.css">
111 |   </head>
112 |   <body>
113 |     <a href="https://github.com/a-axton/box-model-inspector"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://camo.githubusercontent.com/652c5b9acfaddf3a9c326fa6bde407b87f7be0f4/68747470733a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f6f72616e67655f6666373630302e706e67" alt="Fork me on GitHub" data-canonical-src="https://s3.amazonaws.com/github/ribbons/forkme_right_orange_ff7600.png"></a>
114 |     
115 |     <div class="container">
116 |       <h1>Javascript Box Model Inspector</h1>
117 |       <p>Chrome and Firefox style box model highlighter</p>
118 |       <div class="example">
119 |         <h2>Highlight any of these DOM Nodes</h2>
120 |         <div>
121 |           <h3>Highlights margin, padding, border, width & height.</h3>
122 |         </div>
123 |         <div>
124 |           <h3>Custom styles</h3>
125 |         </div>
126 |         <div>
127 |           <h3>Vanilla Javascript</h3>
128 |         </div>
129 |       </div>
130 |       <button class="active">Button</button>
131 |       <button>Button</button>
132 |       <button>Button</button>
133 |     </div>
134 | 
135 |     <div class="wrapper"></div>
136 | 
137 |     <!-- <script type="text/javascript" src="../dist/box-model-inspector.js"></script> -->
138 |     <script type="text/javascript" src="https://cdn.rawgit.com/a-axton/box-model-inspector/55f0763bc4920965436c845ea72508fd4d527c5f/dist/box-model-inspector.js"></script>
139 |     <script type="text/javascript">
140 |       // initialize, options aren't required
141 |       var boxModelInspector = new BoxModelInspector({
142 |         appendTo: document.querySelectorAll('.wrapper')[0],
143 |         className: 'box-model'
144 |       });
145 | 
146 |       // set new element
147 |       document.body.addEventListener('mousemove', function(e) {
148 |         boxModelInspector.setElement(e.target);
149 |         e.stopPropagation();
150 |       });
151 | 
152 |       // refresh dimensions
153 |       window.addEventListener('resize', function() {
154 |         boxModelInspector.refresh();
155 |       });
156 |     </script>
157 |   </body>
158 | </html>
159 | 


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/lib/index.js:
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  1 | function BoxModelInspector (options) {
  2 |   options = options || {};
  3 |   this.el = options.el;
  4 |   this._className = options.className;
  5 |   this._appendTo = options.appendTo;
  6 | 
  7 |   if (this.el) {
  8 |     this._elComputedStyles = window.getComputedStyle(this.el);
  9 |     this.boxModel = this._buildDomNodes();
 10 |     this.refresh();
 11 |   } else {
 12 |     this.boxModel = this._buildDomNodes();
 13 |   }
 14 | }
 15 | 
 16 | // renders all required dom objects and appends to body
 17 | // returns a reference object containing all node objects
 18 | BoxModelInspector.prototype._buildDomNodes = function () {
 19 |   var nodeReferences;
 20 | 
 21 |   this._parentElement = document.createElement('div');
 22 | 
 23 |   var childElements = '<div class="content"></div>' +
 24 |     '<div class="margin">' +
 25 |       '<div class="marginTop"></div>' +
 26 |       '<div class="marginRight"></div>' +
 27 |       '<div class="marginBottom"></div>' +
 28 |       '<div class="marginLeft"></div>' +
 29 |     '</div>' +
 30 |     '<div class="padding">' +
 31 |       '<div class="paddingTop"></div>' +
 32 |       '<div class="paddingRight"></div>' +
 33 |       '<div class="paddingBottom"></div>' +
 34 |       '<div class="paddingLeft"></div>' +
 35 |     '</div>' +
 36 |     '<div class="border">' +
 37 |       '<div class="borderTop"></div>' +
 38 |       '<div class="borderRight"></div>' +
 39 |       '<div class="borderBottom"></div>' +
 40 |       '<div class="borderLeft"></div>' +
 41 |     '</div>' +
 42 |     '<div class="element"></div>';
 43 | 
 44 |   this._parentElement.classList.add(this._className || 'box-model');
 45 |   this._parentElement.innerHTML = childElements;
 46 | 
 47 |   if (this._appendTo) {
 48 |     this._appendTo.appendChild(this._parentElement);
 49 |   } else {
 50 |     document.body.appendChild(this._parentElement);
 51 |   }
 52 | 
 53 |   nodeReferences = this._buildNodeReferences(this._parentElement.childNodes);
 54 |   nodeReferences.wrapper.setAttribute('style', 'position: absolute; pointer-events: none;');
 55 |   nodeReferences.content.wrapper.setAttribute('style','position: relative; width: 100%; height: 100%; z-index: 200;');
 56 |   nodeReferences.margin.wrapper.setAttribute('style','position: absolute; top: 0; left: 0; z-index: 190;');
 57 |   nodeReferences.padding.wrapper.setAttribute('style','position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 195;');
 58 |   nodeReferences.border.wrapper.setAttribute('style','position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 195;');
 59 |   [nodeReferences.padding, nodeReferences.margin, nodeReferences.border].forEach(function(wrapper) {
 60 |     for (var node in wrapper) {
 61 |       if (node !== 'wrapper') {
 62 |         wrapper[node].setAttribute('style','position: absolute; background-attachment: fixed;');
 63 |       }
 64 |     }
 65 |   });
 66 | 
 67 |   return nodeReferences;
 68 | };
 69 | 
 70 | BoxModelInspector.prototype._buildNodeReferences = function (nodes, parent) {
 71 |   var nodeRef = {
 72 |     wrapper: this._parentElement
 73 |   }
 74 | 
 75 |   // loop through dom nodes
 76 |   for (var i = 0; i < nodes.length; i++) {
 77 |     var node = nodes[i];
 78 |     var children = node.childNodes;
 79 |     var refEntry;
 80 | 
 81 |     if (parent) {
 82 |       parent[node.classList[0]] = node;
 83 |     } else if (children) {
 84 |       refEntry = nodeRef[node.classList[0]] = {};
 85 |       refEntry.wrapper = node;
 86 |       this._buildNodeReferences(children, refEntry);
 87 |     }
 88 |   }
 89 | 
 90 |   return nodeRef;
 91 | };
 92 | 
 93 | BoxModelInspector.prototype._calculatePadding = function () {
 94 |   var padding = this.boxModel.padding,
 95 |     border = this.boxModel.border,
 96 |     content = this.boxModel.content,
 97 |     styles = this._elComputedStyles,
 98 |     elDimensions = this._elDimensions,
 99 |     borderLeft = parseFloat(styles.borderLeftWidth),
100 |     borderRight = parseFloat(styles.borderRightWidth),
101 |     borderTop = parseFloat(styles.borderTopWidth),
102 |     borderBottom = parseFloat(styles.borderBottomWidth),
103 |     paddingLeft = parseFloat(styles.paddingLeft),
104 |     paddingRight = parseFloat(styles.paddingRight),
105 |     paddingTop = parseFloat(styles.paddingTop),
106 |     paddingBottom = parseFloat(styles.paddingBottom);
107 | 
108 |   content.wrapper.style.width = elDimensions.outerWidth - paddingLeft - paddingRight - borderLeft - borderRight + 'px';
109 |   content.wrapper.style.height = elDimensions.outerHeight - paddingTop - paddingBottom - borderTop - borderBottom + 'px';
110 |   content.wrapper.style.left = paddingLeft + borderLeft + 'px';
111 |   content.wrapper.style.top = paddingTop + borderTop + 'px';
112 |   content.wrapper.style['background-position'] = borderLeft + 'px ' + '0px';
113 | 
114 |   border.wrapper.style.width = elDimensions.outerWidth + 'px';
115 |   border.wrapper.style.height = elDimensions.outerHeight + 'px';
116 |   border.wrapper.style.left = '0px';
117 |   border.wrapper.style.top = '0px';
118 |   border.wrapper.style['background-position'] = borderLeft + 'px ' + '0px';
119 | 
120 |   padding.wrapper.style.width = elDimensions.outerWidth - borderLeft - borderRight + 'px';
121 |   padding.wrapper.style.height = elDimensions.outerHeight - borderTop - borderBottom + 'px';
122 |   padding.wrapper.style.left = borderLeft + 'px';
123 |   padding.wrapper.style.top = borderTop + 'px';
124 |   padding.wrapper.style['background-position'] = borderLeft + 'px ' + '0px';
125 | 
126 |   border.borderTop.style.height = borderTop + 'px';
127 |   border.borderTop.style.width = elDimensions.outerWidth + 'px';
128 |   border.borderTop.style.top = '0px';
129 |   border.borderTop.style.left = '0px';
130 | 
131 |   border.borderRight.style.height = elDimensions.outerHeight - borderTop - borderBottom + 'px';
132 |   border.borderRight.style.width = borderRight + 'px';
133 |   border.borderRight.style.top = borderTop + 'px';
134 |   border.borderRight.style.right = '0px';
135 | 
136 |   border.borderBottom.style.height = borderBottom + 'px';
137 |   border.borderBottom.style.width = elDimensions.outerWidth + 'px';
138 |   border.borderBottom.style.left = '0px';
139 |   border.borderBottom.style.bottom = '0px';
140 | 
141 |   border.borderLeft.style.height = elDimensions.outerHeight - borderTop - borderBottom + 'px';
142 |   border.borderLeft.style.width = borderLeft + 'px';
143 |   border.borderLeft.style.top = borderTop + 'px';
144 |   border.borderLeft.style.left = '0px';
145 | 
146 |   padding.paddingTop.style.height = paddingTop + 'px';
147 |   padding.paddingTop.style.width = elDimensions.outerWidth - borderLeft - borderRight + 'px';
148 |   padding.paddingTop.style.top = '0px';
149 |   padding.paddingTop.style.left = '0px';
150 | 
151 |   padding.paddingRight.style.height = elDimensions.outerHeight - paddingTop - paddingBottom - borderTop - borderBottom + 'px';
152 |   padding.paddingRight.style.width = paddingRight + 'px';
153 |   padding.paddingRight.style.top = paddingTop + 'px';
154 |   padding.paddingRight.style.right = '0px';
155 | 
156 |   padding.paddingBottom.style.height = paddingBottom + 'px';
157 |   padding.paddingBottom.style.width = elDimensions.outerWidth - borderLeft - borderRight + 'px';
158 |   padding.paddingBottom.style.bottom = '0px';
159 |   padding.paddingBottom.style.left = '0px';
160 | 
161 |   padding.paddingLeft.style.height = elDimensions.outerHeight - paddingTop - paddingBottom - borderTop - borderBottom + 'px';
162 |   padding.paddingLeft.style.width = paddingLeft + 'px';
163 |   padding.paddingLeft.style.top = paddingTop + 'px';
164 |   padding.paddingLeft.style.left = '0px';
165 | };
166 | 
167 | BoxModelInspector.prototype._calculateMargin = function () {
168 |   var margin = this.boxModel.margin,
169 |     styles = this._elComputedStyles,
170 |     elDimensions = this._elDimensions,
171 |     marginLeft = parseFloat(styles.marginLeft),
172 |     marginRight = parseFloat(styles.marginRight),
173 |     marginTop = parseFloat(styles.marginTop),
174 |     marginBottom = parseFloat(styles.marginBottom);
175 | 
176 |   margin.wrapper.style.width = elDimensions.outerWidth + marginLeft + marginRight + 'px';
177 |   margin.wrapper.style.height = elDimensions.outerHeight + marginTop + marginBottom + 'px';
178 |   margin.wrapper.style.left = (marginLeft * -1) + 'px';
179 |   margin.wrapper.style.top = (marginTop * -1) + 'px';
180 | 
181 |   margin.marginTop.style.height = marginTop + 'px';
182 |   margin.marginTop.style.width = elDimensions.outerWidth + marginLeft + marginRight + 'px';
183 | 
184 |   margin.marginRight.style.height = elDimensions.outerHeight + 'px';
185 |   margin.marginRight.style.width = marginRight + 'px';
186 |   margin.marginRight.style.top = marginTop + 'px';
187 |   margin.marginRight.style.right = 0 + 'px';
188 | 
189 |   margin.marginBottom.style.height = marginBottom + 'px';
190 |   margin.marginBottom.style.width = elDimensions.outerWidth + marginLeft + marginRight + 'px';
191 |   margin.marginBottom.style.bottom = 0 + 'px';
192 | 
193 |   margin.marginLeft.style.height = elDimensions.outerHeight + 'px';
194 |   margin.marginLeft.style.width = marginLeft + 'px';
195 |   margin.marginLeft.style.top = marginTop + 'px';
196 | };
197 | 
198 | BoxModelInspector.prototype.setElement = function (el) {
199 |   this.el = el;
200 |   this._elComputedStyles = window.getComputedStyle(el);
201 |   this.refresh();
202 |   return this;
203 | };
204 | 
205 | BoxModelInspector.prototype.hide = function () {
206 |   this.boxModel.hidden = true;
207 |   this.boxModel.wrapper.style.display = 'none';
208 |   return this;
209 | };
210 | 
211 | BoxModelInspector.prototype.show = function () {
212 |   this.boxModel.hidden = false;
213 |   this.refresh();
214 |   return this;
215 | };
216 | 
217 | BoxModelInspector.prototype.refresh = function () {
218 |   if (this.boxModel.hidden) { return; }
219 |   var el = this.el;
220 |   var elDimensions = {
221 |     offset: {
222 |       left: el.offsetLeft,
223 |       top: el.offsetTop
224 |     },
225 |     width: el.clientWidth,
226 |     height: el.clientHeight,
227 |     outerHeight: el.offsetHeight,
228 |     outerWidth: el.offsetWidth
229 |   };
230 | 
231 |   this._elDimensions = elDimensions;
232 |   this.boxModel.wrapper.style.display = 'block';
233 |   this.boxModel.wrapper.style.left = elDimensions.offset.left + 'px';
234 |   this.boxModel.wrapper.style.top = elDimensions.offset.top + 'px';
235 |   this.boxModel.wrapper.style.height = elDimensions.outerHeight + 'px';
236 |   this.boxModel.wrapper.style.width = elDimensions.outerWidth + 'px';
237 | 
238 |   this._calculatePadding();
239 |   this._calculateMargin();
240 | 
241 |   return this;
242 | };
243 | 
244 | export default BoxModelInspector;
245 | 


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/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "box-model-inspector",
 3 |   "version": "1.0.1",
 4 |   "description": "Devtools style css box model inspector in javascript",
 5 |   "homepage": "http://a-axton.github.io/box-model-inspector/",
 6 |   "repository": {
 7 |     "type": "git",
 8 |     "url": "https://github.com/a-axton/box-model-inspector.git"
 9 |   },
10 |   "main": "dist/box-model-inspector.js",
11 |   "jsnext:main": "lib/index.js",
12 |   "scripts": {
13 |     "build": "rollup -c"
14 |   },
15 |   "keywords": [
16 |     "box model",
17 |     "inspector",
18 |     "chrome",
19 |     "devtools"
20 |   ],
21 |   "author": "Andy Axton",
22 |   "license": "MIT",
23 |   "devDependencies": {
24 |     "rollup": "^0.36.3",
25 |     "rollup-plugin-uglify": "^1.0.1"
26 |   }
27 | }
28 | 


--------------------------------------------------------------------------------
/rollup.config.js:
--------------------------------------------------------------------------------
 1 | import uglify from 'rollup-plugin-uglify';
 2 | 
 3 | export default {
 4 |   entry: 'lib/index.js',
 5 |   dest: 'dist/box-model-inspector.js',
 6 |   format: 'umd',
 7 |   moduleName: 'BoxModelInspector',
 8 |   plugins: [
 9 |     uglify()
10 |   ]
11 | }
12 | 


--------------------------------------------------------------------------------