# handy-collaps.js

A pure Javascript module for accordion/collapse UI without jQuery.  
[> examples](https://handy-collapse.netlify.com/)

[![NPM](https://nodei.co/npm/handy-collapse.png?compact=true)](https://nodei.co/npm/handy-collapse/)

[![npm version](https://badge.fury.io/js/handy-collapse.svg)](https://badge.fury.io/js/handy-collapse)
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## Usage

### Install

Using npm or yarn, install handy-collapse  
[> npm](https://www.npmjs.com/package/handy-collapse)

```sh
npm install handy-collapse
```
```sh
yarn add handy-collapse
```

### Import

```javascript
import HandyCollapse from "handy-collapse";
```


### Initialize

```javascript
new HandyCollapse(options);
```

### Markup

#### Minimum markup

```html
<!-- 
    Add data attribute, button/content element.
    Control Button:  data-{namespase}-control="{ID}" * multiple elements
    Toggle Content:  data-{namespase}-content="{ID}" * only one element
 -->
<button type="button" data-hc-control="uniqID">Show/Hide Content</button>

<div data-hc-content="uniqID">Toggle Content</div>
```

#### With `aria-*` attribute for accessibility

```html
<button type="button" data-hc-control="uniqID" aria-expanded="false" aria-controls="contentID">
  Show/Hide Content
</button>

<div id="contentID" data-hc-content="uniqID" aria-hidden="true">Toggle Content</div>
```

## Options

| Option Name       | Type                                     | Default           | Desc                                                                                                                     |
| ----------------- | ---------------------------------------- | ----------------- | ------------------------------------------------------------------------------------------------------------------------ |
| nameSpace         | string                                   | "hc"              | Set namespace both "toggleButtonAttr" & "toggleContentAttr"                                                              |
| toggleButtonAttr  | string                                   | "data-hc-control" | data attribute for Button Element                                                                                        |
| toggleContentAttr | string                                   | "data-hc-content" | data attribute for Content Element                                                                                       |
| activeClass       | string                                   | "is-active"       | Add class on opened Element                                                                                              |
| isAnimation       | boolean                                  | true              | animation Slide                                                                                                          |
| closeOthers       | boolean                                  | true              | Close others Content                                                                                                     |
| animationSpeed    | number                                   | 400               | css transition duration(ms)                                                                                              |
| cssEasing         | string                                   | "ease-in-out"     | css transition easing (only isAnimation:true)                                                                            |
| onSlideStart      | (isOpen:boolean,contentID:string)=> void | () => void        | Callback on Open/Close Animation Start <br> @param {Boolean} isOpen <br> @param {String} contentID \* Don't ID Attribute |
| onSlideEnd        | (isOpen:boolean,contentID:string)=> void | () => void        | Callback on Open/Close Animation End <br> @param {Boolean} isOpen <br> @param {String} contentID \* Don't ID Attribute   |

## Methods

Open/Close Content

```javascript
handyCollapse.open(contentID, [isRunCallback, isAnimation]);
```

```javascript
handyCollapse.close(contentID, [isRunCallback, isAnimation]);
```

## Sample

[examples](https://handy-collapse.netlify.com/)

### JS

```javascript
//Default Options
const myAccrodion = new HandyCollapse();

//Full Options
const myAccrodionCustom = new HandyCollapse({
  nameSpace: "hc", // Note: Be sure to set different names when creating multiple instances
  activeClass: "is-active",
  isAnimation: true,
  closeOthers: true,
  animationSpeed: 400,
  cssEasing: "ease",
  onSlideStart: (isOpen, contentID) => {
    console.log(isOpen);
    const buttonEl = document.querySelectorAll(`[data-hc-control='${contentID}']`);
    console.log(buttonEl);
  },
  onSlideEnd: (isOpen, contentID) => {
    console.log(isOpen);
    const contentEl = document.querySelector(`[data-hc-content='${contentID}']`);
    console.log(contentEl);
  }
});

// Open by Js
myAccrodion.open("content01");

// Close by Js
myAccrodion.close("content01");
```

### HTML

```html
<!-- 
    BUTTON :  data-{namespase}-control="{ID}" * multiple element
    CONTENT:  data-{namespase}-content="{ID}" * only one element
 -->
<!-- basic -->
<button type="button" data-hc-control="content01" aria-expanded="false" aria-controls="basicContent01">
  Show/Hide Content 01
</button>
<div id="basicContent01" data-hc-content="content01" aria-hidden="true">... Content 01 ...</div>

<!-- if add activeClass(def: "is-active"), Opened on init. -->
<button
  type="button"
  class="is-active"
  　
  data-hc-control="content02"
  aria-expanded="true"
  aria-controls="basicContent02"
>
  Show/Hide Content 02
</button>
<div id="basicContent02" class="is-active" data-hc-content="content02" aria-hidden="false">... Content 02 ...</div>

<!-- can use nested accordion -->
<button type="button" data-hc-control="parentContent" aria-expanded="true" aria-controls="netstedParantContent">
  Show/Hide parent content
</button>
<div id="netstedParantContent" data-hc-content="parentContent" aria-hidden="true">
  ... parent content ...
  <button type="button" 　 data-hc-control="childContent" aria-expanded="true" aria-controls="netstedChiledContent">
    Show/Hide child content
  </button>
  <div id="netstedChiledContent" data-hc-content="childContent" aria-hidden="true">... child content ...</div>
</div>
```

## License

[MIT](./LICENSE.txt)