react-metismenu

A ready / simple to use, highly customizable, updateable, ajax supported, animated and material designed menu component for React

Demo
====
Here is a simple demo to show animations and actions with standart theme. Go to demo

react-metismenu-router-link link component to use with react-router. Go to demo - Extension Page

Install
=======

``console
npm install --save react-metismenu
`

Usage
=====

With Ecma Script 6 and React Loaders
`javascript
import React from 'react';
import ReactDOM from 'react-dom';
import MetisMenu from 'react-metismenu';

ReactDOM.render(, document.getElementById('dom_id'));
`

Without Loaders (ES5)
`javascript
const React = require('react');
const ReactDOM = require('react-dom');
const MetisMenu = require('react-metismenu');

ReactDOM.render(
React.createElement(MetisMenu),
document.getElementById('dom_id')
);
`

Also you should embed core css file to your html for material design and transition effects to work.
`html

`
You can find this css in your node_modules/react-metismenu/dist to embed locally.

Properties
==========


$3

+ Updateable Properties (by state)
- Properties To Set Content (See Properties For Each Item In Content)
* {Object[]} [content=[]] - It keeps all recursive structure of Metismenu
* {string | Object[]} [ajax] - Url or ajax settings object to get menu as json from remote. (See Remote Contents)
- Active Link Selectors (Higlights and drops down all parents if it is a submenu item)
* {boolean} [activeLinkFromLocation] - Automatically highlights link matched item to and browser location.
* {string | number} [activeLinkId] - Find and highlight according to item id.
* {string} [activeLinkTo] - Find and highlight according to item to.
* {string} [activeLinkLabel] - Find and highlight according to item label.


+ Non-Updateable Properties (by state)
- Customizing Styles
* {string} [className] - Class name for main metismenu wrapper
* {string|func} [classNameContainer] - Class name or dynamic class name producer callback for item container (Affects ul)
* {string} [classNameContainerVisible] - Additional class name when container is visible (Affects ul)
* {string} [classNameItem] - Class name for items in container (Affects li)
* {string} [classNameItemActive] - Additional class name when item link is active (Affects li)
* {string} [classNameItemHasActiveChild] - Additional class name when any child or grandchild item link is active (Affects li)
* {string} [classNameItemHasVisibleChild] - Additional class name when any child or grandchild item link is visible (Affects li)
* {string} [classNameLink] - Class name for links in items (Affects a)
* {string} [classNameLinkActive] - Additional class name when link is active (Affects a)
* {string} [classNameLinkHasActiveChild] - Additional class name when any child or grandchild link is active (Affects a)
* {string} [classNameIcon] - Class name for link icons
* {string} [classNameStateIcon] - Class name for state indicators of submenu

* {boolean} [noBuiltInClassNames=false] - When true, core css class names won't be used

* {string} [iconNamePrefix="fa fa-"] - Prefix for all icon's style class name
* {string} [iconNameStateHidden="caret-left"] - Icon name for state of collapsed containers
* {string} [iconNameStateVisible="caret-left rotate-minus-90"] - Icon name for state of opened containers
- Customizing Link Component
* {React.Component} [LinkComponent=DefaultLink] - Handles link components of all items
- Event Listeners
* {callback} [onSelected] - Function is called when a menu is selected.
- Using With Redux
* {string} [reduxStoreName="metisMenuStore"] - Redux store field name for react-metismenu to use
* {object} [useExternalReduxStore] - Created redux store

$3


* {string} [icon] - Icon class name of item
* {string} label - Label of item
* {string} [to] - Href address to link (if item has submenu, to property will be ignored)
* {boolean} [externalLink] - If true link opens page in new tab/window
* {Object[]} [content] - Sub menu of item. (For Flat Contents you may use id and parentId properties instead.)
* {string | number} [id] - Necessary for Flat Contents, or useful when activating a link of menu contains non-unique links. Possbile values are; not empty string, or greater than 0 if it is number.
* {string | number} [parentId] - Necessary for Flat Contents. If item has no parent, top item, parentId should be falsy -one of false, undefined, null, empty string or number 0, not string "0".

Note for all properties
> Curly brackets {...} refers to property type.
> After types, square brackets [...] means that property is optional.
> Equal sign = in square brackets shows its default value.

Examples
========

$3

Simple usage with recursive content object.
`javascript
import React from 'react';
import ReactDOM from 'react-dom';
import MetisMenu from 'react-metismenu';

const content=[
{
icon: 'icon-class-name',
label: 'Label of Item',
to: '#a-link',
},
{
icon: 'icon-class-name',
label: 'Second Item',
content: [
{
icon: 'icon-class-name',
label: 'Sub Menu of Second Item',
to: '#another-link',
},
],
},
];

ReactDOM.render(
,
document.getElementById('root')
);
`

See Properties For Each Item In Content.

See activeLinkFromLocation property.

$3


You may get menu content from a sql server. In this case, you can pass the content directly into react-metismenu without processing data. Here is flat json content example;
`json
[
{
"id": 1,
"icon": "icon-class-name",
"label": "Label of Item",
"to": "#a-link"
},
{
"id": 2,
"icon": "icon-class-name",
"label": "Second Item"
},
{
"id": 3,
"parentId": 2,
"icon": "icon-class-name",
"label": "Sub Menu of Second Item",
"to": "#another-link"
}
]
`

$3

You are able to get json content from remote. Content may be recursive or flat. react-metismenu uses simple-ajax to send ajax request. You can pass just url string or object with these Available Options to ajax prop.

`javascript

`
`javascript
url: "/service.php",
method: "POST",
data: {
"method": "get-menu",
},
}} />
`

Active Link Selectors
=====================


$3


Using properties make you able to update active link via state.

##### activeLinkFromLocation

Automatically highlight link matched item to and browser location.

It tries these posibilities to match location;
`javascript
[
window.location.pathname + window.location.search, // /path?search
window.location.hash, // #hash
window.location.pathname + window.location.search + window.location.hash, // /path?search#hash
]
`

Usage Example
`javascript

`

##### activeLinkId

Find and highlight according to item id.
It should be not empty string, or greater than 0 if it is number.

Usage Example
`javascript

`

##### activeLinkTo

Find and highlight according to item to.

Usage Example
`javascript

`

##### activeLinkLabel

Find and highlight according to item label.

Usage Example
`javascript

`

> Note that, if you like to use more than one selector (activeLinkTo, activeLinkLabel, ...) at the same time, while setting the prop using one of them, you should set other props to null or undefined.
> For example; this.setState({ metisMenuActiveLinkId: null, metisMenuActiveLinkLabel: 'A Label' });. Otherwise, your component may not change active link.

$3

Also, you can update active links with methods accessed from reference

##### changeActiveLinkFromLocation()

Same with activeLinkFromLocation property.

Usage Example
`javascript
class App extends React.Component {
//...

foo() {
//...
this.refs.menu.changeActiveLinkFromLocation();
//...
}

render() {
return (



);
}
}
`

##### changeActiveLinkId(id)

Same with activeLinkId property.

Usage Example
`javascript
class App extends React.Component {
//...

foo() {
//...
this.refs.menu.changeActiveLinkId(3);
//...
}

render() {
return (



);
}
}
`

##### changeActiveLinkTo(to)

Same with activeLinkTo property.

Usage Example
`javascript
class App extends React.Component {
//...

foo() {
//...
this.refs.menu.changeActiveLinkTo('/users');
//...
}

render() {
return (



);
}
}
`

##### changeActiveLinkLabel(label)

Same with activeLinkLabel property.

Usage Example
`javascript
class App extends React.Component {
//...

foo() {
//...
this.refs.menu.changeActiveLinkLabel('User List');
//...
}

render() {
return (



);
}
}
`

Customizing Styles
==================
After rendering react-metismenu with recursive content, output dom structure will be like this;
`html



`

#### Overriding Styles
Metismenu with default setting adds built-in css class names.

These class names are, according to figure above;
- main wrapper - metismenu
- container - metismenu-container and visible for opened containers
- item - metismenu-item
- link - metismenu-link, active for active links, and has-active-child for links has active child or grandchild
- icon - metismenu-icon
- state icon - metismenu-state-icon

You can overide these class names to customize with your own css.

Note: Containers' default state is hidden and there is no assigned class to tell.

#### Using Your Own Class Names
You can tell metismenu to add your own class names by sending them as props.

Property names are, according to figure above;
- main wrapper - className
- container - classNameContainer and classNameContainerVisible for opened containers
- item - classNameItem, classNameItemActive for active items, and classNameItemHasActiveChild for items has active child or grandchild
- link - classNameLink, classNameLinkActive for active links, and classNameLinkHasActiveChild for links has active child or grandchild
- icon - classNameIcon
- state icon - classNameStateIcon

Using these props not overwrites built-in class names, just appends.

Note: Containers' default state is hidden and there is no prop to tell.

#### Not Using Built-in Styles
If you don't want use core styles you can remove them completely by setting noBuiltInClassNames prop true.
In this case you are responsable for all styling including visibility states of containers.

#### Icon Framework
By default, metismenu uses Font Awesome for icons and prepends all icon names with fa fa-.

To use another icon framework, you can change prefix with iconNamePrefix prop.

To change state icons (shows submenu is visible or not) you can use these props;
- iconNameStateVisible
- iconNameStateHidden

These icons are also prepended by iconNamePrefix.

$3


`javascript
className="my-menu"
clasNameLink="my-menu-link"
iconNameStateVisible="minus"
iconNameStateHidden="plus"
/>
`


Customizing Link Component
==========================
You are able to change the link component of each item.
You may use another html tag, want to inject some properties or change operation logic. In this case, you can customize and use your own link component sending to react-metismenu component as LinkComponent property.

#### Props to use in your Link Component
- {string} className - Passes built-in class name and classNameLink prop of top component
- {string} classNameActive - Passes built-in class name and classNameLinkActive prop of top component
- {string} classNameHasActiveChild - Passes built-in class name and classNameLinkHasActiveChild prop of top component
- {boolean} active - Active link or not state
- {boolean} hasActiveChild - Has active child or grand child state
- {boolean} hasSubMenu - Has sub menu or not state
- {function} toggleSubMenu - If item has submenu, toggle sub menu callback. Otherwise dead function.
- {function} activateMe - If it is normal link, callback that activates link (to assign active class name) and makes all parents beware they have active link. Also triggers onSelected and given parameters are passed to listener.
- {string} [to] - Contains to info of the item comes from menu content object
- {boolean} [externalLink] - Destination is external or not
- {React.Component} children - Ready to render content of link - contains icon, label and other stuff

#### An Example
Defining CustomLink Component
`javascript
class CustomLink extends React.Component {
constructor() {
super();

this.onClick = this.onClick.bind(this);
}

onClick(e) {
if (this.props.hasSubMenu) this.props.toggleSubMenu(e);
else {
/*
* your own operation using "to"
* myGotoFunc(this.props.to);
* or
this.props.activateMe(/ Parameters to pass "onSelected" event listener */);
*/

this.props.activateMe({
newLocation: this.props.to,
selectedMenuLabel: this.props.label,
});
}
}

render() {
return (

{this.props.children}

);
}
};
`
Injecting CustomLink into Menu component
`javascript



`
Also, as another example, you can look into DefaultLink Component source.

Using With Redux
================
react-metismenu uses Redux and if you also use Redux in your application, Providers will confilict.
That's why you should pass your store using useExternalReduxStore prop.
In this case, react-metismenu will use your application's Provider.

An example application;
`javascript
import { createStore, combineReducers } from 'redux';
import MetisMenu from 'react-metismenu';
import metisMenuReducer from 'react-metismenu/lib/reducers';

const reducers = combineReducers({
yourStore: yourReducers,
// Your other reducer assignments...
metisMenuStore: metisMenuReducer, // Here "metisMenuStore" is default and it can be changed with "reduxStoreName" prop
});
const store = createStore(reducers, {
yourStore: { // This name should be the same with above you assigned your reducer
// Your application state
},
// Your other initial states...
// There is no need to initalize "metisMenuStore"
});


`
You can also use multiple react-metismenu with same external store

Extensions
==========


react-metismenu-router-link


If you use react-router, this extension does the job. It provides link component to use react-metismenu with react-router.
- Npm package react-metismenu-router-link
- Source page
- Demo page

Development / Contributing
==========================
If you like to add or improve something, follow these steps.

`console


Change dir to your playground folder and clone repository.

git clone git@github.com:alpertuna/react-metismenu.git

Enter cloned folder and install necessary development node libraries

cd react-metismenu
npm install
`

#### Folders and Files
- src folder keeps all source files of react-metismenu
- less folder keeps source style files.
- dev is playground folder to develop react-metismenu.

Under dev folder, index.html is index file of our web server. You don't need to touch here if you don't want to add any other external js or css files.
App.js file is entry point for our react application, and you can test your alterations in here. There is a working example in App.js and it imports react-metismenu directly from source code, that's why there is no need to build it while developing. Similarly less folder is imported directly through less compiler pipe.

#### To run dev server,
`console
npm run dev-server


or shortly


npm start
`
And open localhost:8080 in browser.
Dev server uses webpack and it has hot modul replecament plugins, so when you change and save any source file, it will rebuild virtual bundle and send signal browser to refresh page automaticly.

#### Source Code Writing Standarts
For source code quality, I applied Airbnb rules. Because it focuses on React more than others.

#### After Develop,
`console


TESTING

Runs all necessary test scripts (linting and unit-testing)

npm test

Or you can test specific parts of project

Lints js files according to Airbnb rules using Eslint

npm run lint-confs
npm run lint-src
npm run lint-dev

Runs unit test using Jest

npm run unit-test

BUILDING

Builds lib and dist files together

npm run build

Or you can build them seperately

Builds js and css dist files

npm run build-dist-js
npm run build-dist-js-min
npm run build-dist-css
npm run build-dist-css-min

Builds lib files for npm

npm run build-lib
``

> You can correct typos or improve meanings in documents as well as contributing code.