Created
April 30, 2023 06:21
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| document.querySelector('head') | |
| .insertAdjacentHTML('beforeend', | |
| `<style> | |
| #highlighter-top, #highlighter-bottom { | |
| background: red; | |
| height:1px; | |
| position: fixed; | |
| transition:all 300ms ease; | |
| } | |
| #highlighter-left, #highlighter-right { | |
| background: red; | |
| width:1px; | |
| position: fixed; | |
| transition:all 300ms ease; | |
| } | |
| </style>`, | |
| ); | |
| document.querySelector('body') | |
| .insertAdjacentHTML('beforeend', | |
| `<div id="highlighter"> | |
| <div id="highlighter-top"></div> | |
| <div id="highlighter-left"></div> | |
| <div id="highlighter-right"></div> | |
| <div id="highlighter-bottom"></div> | |
| </div>`, | |
| ); | |
| /** | |
| * | |
| * @param obj {Object} | |
| */ | |
| function applyHighlighterCss(obj) { | |
| let highLightElements = { | |
| top: document.querySelector('#highlighter-top'), | |
| left: document.querySelector('#highlighter-left'), | |
| right: document.querySelector('#highlighter-right'), | |
| bottom: document.querySelector('#highlighter-bottom'), | |
| }; | |
| Object.keys(obj).forEach((key_) => { | |
| let csses = obj[key_]; | |
| let ele = highLightElements[key_]; | |
| Object.keys(csses).forEach(cssKey => { | |
| let cssVal = csses[cssKey]; | |
| ele.style[cssKey] = String(`${cssVal}px`); | |
| }); | |
| }); | |
| } | |
| let listener = (event) => { | |
| if ( | |
| event.target.id.indexOf('selector') !== -1 | |
| ) { | |
| return; | |
| } | |
| const $target = document.elementFromPoint(event.x, event.y); | |
| $target.addEventListener('click', (ev) => { | |
| document.querySelector('body') | |
| .removeEventListener('mousemove', listener); | |
| // todo code is here | |
| }); | |
| const targetOffset = $target.getBoundingClientRect(); | |
| const targetWidth = targetOffset.width; | |
| const targetHeight = targetOffset.height; | |
| applyHighlighterCss({ | |
| top: { | |
| left: targetOffset.left, | |
| top: (targetOffset.top - 1), | |
| width: (targetWidth + 1), | |
| }, | |
| right: { | |
| left: (targetOffset.right), | |
| top: targetOffset.top, | |
| height: (targetHeight + 1), | |
| }, | |
| bottom: { | |
| left: targetOffset.left, | |
| top: (targetOffset.bottom), | |
| width: (targetWidth + 1), | |
| }, | |
| left: { | |
| left: targetOffset.left, | |
| top: (targetOffset.top - 1), | |
| height: (targetHeight + 1), | |
| }, | |
| }); | |
| $target.style.color = 'green'; | |
| // $target.style.backgroundColor = 'grey'; | |
| }; | |
| document.querySelector('body') | |
| .addEventListener('mousemove', listener); |
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