Update and housekeeping
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@ -1,16 +1,16 @@
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---
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title: Modal
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title: Modal
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tags: visual,effect,intermediate
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---
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Renders a Modal component, controllable through events.
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To use the component, import `Modal` only once and then display it by passing a boolean value to the `isVisible` attribute.
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* Use object destructuring to set defaults for certain attributes of the modal component.
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* Define `keydownHandler`, a method which handles all keyboard events, which can be used according to your needs to dispatch actions (e.g. close the modal when <kbd>Esc</kbd> is pressed).
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* Use `React.useEffect()` hook to add or remove the `keydown` event listener, which calls `keydownHandler`.
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* Use the `isVisible` prop to determine if the modal should be shown or not.
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* Use CSS to style and position the modal component.
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- Use object destructuring to set defaults for certain attributes of the modal component.
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- Define `keydownHandler`, a method which handles all keyboard events, which can be used according to your needs to dispatch actions (e.g. close the modal when <kbd>Esc</kbd> is pressed).
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- Use `React.useEffect()` hook to add or remove the `keydown` event listener, which calls `keydownHandler`.
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- Use the `isVisible` prop to determine if the modal should be shown or not.
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- Use CSS to style and position the modal component.
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```css
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.modal {
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@ -18,9 +18,9 @@ To use the component, import `Modal` only once and then display it by passing a
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top: 0;
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bottom: 0;
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left: 0;
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right:0;
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right: 0;
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width: 100%;
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z-index: 9999;
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z-index: 9999;
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display: flex;
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align-items: center;
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justify-content: center;
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@ -29,7 +29,7 @@ To use the component, import `Modal` only once and then display it by passing a
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animation-duration: 300ms;
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}
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.modal-dialog{
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.modal-dialog {
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width: 100%;
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max-width: 550px;
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background: white;
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@ -39,51 +39,60 @@ To use the component, import `Modal` only once and then display it by passing a
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text-align: left;
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display: flex;
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flex-direction: column;
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overflow:hidden;
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box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2),0 6px 20px 0 rgba(0,0,0,0.19);
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overflow: hidden;
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box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
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-webkit-animation-name: animatetop;
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-webkit-animation-duration: 0.4s;
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animation-name: slide-in;
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animation-duration: 0.5s;
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}
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.modal-header,.modal-footer{
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.modal-header,
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.modal-footer {
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display: flex;
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align-items: center;
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padding: 1rem;
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}
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.modal-header{
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.modal-header {
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border-bottom: 1px solid #dbdbdb;
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justify-content: space-between;
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}
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.modal-footer{
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.modal-footer {
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border-top: 1px solid #dbdbdb;
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justify-content: flex-end;
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}
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.modal-close{
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.modal-close {
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cursor: pointer;
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padding: 1rem;
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margin: -1rem -1rem -1rem auto;
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}
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.modal-body{
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.modal-body {
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overflow: auto;
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}
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.modal-content{
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.modal-content {
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padding: 1rem;
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}
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@keyframes appear {
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from {opacity: 0;}
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to {opacity: 1;}
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from {
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opacity: 0;
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}
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to {
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opacity: 1;
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}
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}
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@keyframes slide-in {
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from {transform: translateY(-150px);}
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to { transform: translateY(0);}
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from {
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transform: translateY(-150px);
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}
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to {
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transform: translateY(0);
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}
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}
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```
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```jsx
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function Modal({ isVisible = false, title, content, footer, onClose }){
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function Modal({ isVisible = false, title, content, footer, onClose }) {
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React.useEffect(() => {
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document.addEventListener('keydown', keydownHandler);
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return () => document.removeEventListener('keydown', keydownHandler);
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@ -91,46 +100,50 @@ function Modal({ isVisible = false, title, content, footer, onClose }){
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function keydownHandler({ key }) {
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switch (key) {
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case 'Escape': onClose(); break;
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case 'Escape':
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onClose();
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break;
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default:
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}
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}
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return !isVisible ? null : (
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<div className="modal" onClick={onClose}>
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<div className="modal-dialog" onClick={e => e.stopPropagation()}>
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<div className="modal-dialog" onClick={e => e.stopPropagation()}>
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<div className="modal-header">
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<h3 className="modal-title">{title}</h3>
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<span className="modal-close" onClick={onClose}>×</span>
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<span className="modal-close" onClick={onClose}>
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×
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</span>
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</div>
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<div className="modal-body">
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<div className="modal-content">{ content }</div>
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<div className="modal-content">{content}</div>
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</div>
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{footer && <div className="modal-footer">{footer}</div>}
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</div>
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</div>
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)
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);
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}
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```
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```jsx
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//Add the component to the render function
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function App() {
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const [ isModal, setModal] = React.useState(false);
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const [isModal, setModal] = React.useState(false);
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return (
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<React.Fragment>
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<button onClick={()=> setModal(true)}>Click Here</button>
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<Modal
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isVisible={ isModal }
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title= "Modal Title"
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content = {<p>Add your content here</p>}
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footer = {<button>Cancel</button>}
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onClose ={()=> setModal(false)}
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<button onClick={() => setModal(true)}>Click Here</button>
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<Modal
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isVisible={isModal}
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title="Modal Title"
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content={<p>Add your content here</p>}
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footer={<button>Cancel</button>}
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onClose={() => setModal(false)}
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/>
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</React.Fragment>
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)
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);
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}
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ReactDOM.render( <App/>, document.getElementById('root'));
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ReactDOM.render(<App />, document.getElementById('root'));
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```
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