@iftek/react-grid-layout

v0.17.2

Published

3 years ago

A draggable and resizable grid layout with responsive breakpoints, for React. Improved version

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iftek

react grid drag draggable resize resizable fluid responsive

React-Grid-Layout

React-Grid-Layout is a grid layout system much like Packery or Gridster, for React.

This repository fork from STRML/react-grid-layout & oTkPoBeHuE/react-grid-layout.

New feature Use isBounded & maxRows : When item drag or resize , it can constrain in the grid.

ezgif-1-3e5c4e0b3509

Unlike those systems, it is responsive and supports breakpoints. Breakpoint layouts can be provided by the user or autogenerated.

RGL is React-only and does not require jQuery.

BitMEX UI

GIF from production usage on BitMEX.com

[Demo | Changelog | WebpackBin Editable demo]

Demos

Projects Using React-Grid-Layout

Know of others? Create a PR to let me know!

Features

100% React - no jQuery
Compatible with server-rendered apps
Draggable widgets
Resizable widgets
Static widgets
Configurable packing: horizontal, vertical, or off
Bounds checking for dragging and resizing
Widgets may be added or removed without rebuilding grid
Layout can be serialized and restored
Responsive breakpoints
Separate layouts per responsive breakpoint
Grid Items placed using CSS Transforms
Performance: on / off, note paint (green) as % of time

Installation

Install the React-Grid-Layout package package using npm:

npm install otk-react-grid-layout

Include the following stylesheets in your application:

/node_modules/otk-react-grid-layout/css/styles.css
/node_modules/react-resizable/css/styles.css

Usage

Use ReactGridLayout like any other component. The following example below will produce a grid with three items where:

users will not be able to drag or resize item a
item b will be restricted to a minimum width of 2 grid blocks and a maximum width of 4 grid blocks
users will be able to freely drag and resize item c

var ReactGridLayout = require('react-grid-layout');

var MyFirstGrid = React.createClass({
	render: function() {
		// layout is an array of objects, see the demo for more complete usage
		var layout = [
			{ i: 'a', x: 0, y: 0, w: 1, h: 2, static: true },
			{ i: 'b', x: 1, y: 0, w: 3, h: 2, minW: 2, maxW: 4 },
			{ i: 'c', x: 4, y: 0, w: 1, h: 2 }
		];
		return (
			<ReactGridLayout className="layout" layout={layout} cols={12} rowHeight={30} width={1200}>
				<div key="a">a</div>
				<div key="b">b</div>
				<div key="c">c</div>
			</ReactGridLayout>
		);
	}
});

You may also choose to set layout properties directly on the children:

var ReactGridLayout = require('react-grid-layout');

var MyFirstGrid = React.createClass({
	render: function() {
		return (
			<ReactGridLayout className="layout" cols={12} rowHeight={30} width={1200}>
				<div key="a" data-grid={{ x: 0, y: 0, w: 1, h: 2, static: true }}>
					a
				</div>
				<div key="b" data-grid={{ x: 1, y: 0, w: 3, h: 2, minW: 2, maxW: 4 }}>
					b
				</div>
				<div key="c" data-grid={{ x: 4, y: 0, w: 1, h: 2 }}>
					c
				</div>
			</ReactGridLayout>
		);
	}
});

Usage without Browserify/Webpack

A module usable in a <script> tag is included here. It uses a UMD shim and excludes React, so it must be otherwise available in your application, either via RequireJS or on window.React.

Responsive Usage

To make RGL responsive, use the <ResponsiveReactGridLayout> element:

var ResponsiveReactGridLayout = require('react-grid-layout').Responsive;
//...
render: function() {
  // {lg: layout1, md: layout2, ...}
  var layouts = getLayoutsFromSomewhere();
  return (
    <ResponsiveReactGridLayout className="layout" layouts={layouts}
      breakpoints={{lg: 1200, md: 996, sm: 768, xs: 480, xxs: 0}}
      cols={{lg: 12, md: 10, sm: 6, xs: 4, xxs: 2}}>
      <div key="1">1</div>
      <div key="2">2</div>
      <div key="3">3</div>
    </ResponsiveReactGridLayout>
  )
}

When in responsive mode, you should supply at least one breakpoint via the layouts property.

When using layouts, it is best to supply as many breakpoints as possible, especially the largest one. If the largest is provided, RGL will attempt to interpolate the rest.

You will also need to provide a width, when using <ResponsiveReactGridLayout> it is suggested you use the HOC WidthProvider as per the instructions below.

For the time being, it is not possible to supply responsive mappings via the data-grid property on individual items, but that is coming soon.

Providing Grid Width

Both <ResponsiveReactGridLayout> and <ReactGridLayout> take width to calculate positions on drag events. In simple cases a HOC WidthProvider can be used to automatically determine width upon initialization and window resize events.

import {Responsive, WidthProvider} from 'react-grid-layout';
const ResponsiveReactGridLayout = WidthProvider(Responsive);

//...
render() {
  // {lg: layout1, md: layout2, ...}
  var layouts = getLayoutsFromSomewhere();
  return (
    <ResponsiveReactGridLayout className="layout" layouts={layouts}
      breakpoints={{lg: 1200, md: 996, sm: 768, xs: 480, xxs: 0}}
      cols={{lg: 12, md: 10, sm: 6, xs: 4, xxs: 2}}>
      <div key="1">1</div>
      <div key="2">2</div>
      <div key="3">3</div>
    </ResponsiveReactGridLayout>
  )
}

This allows you to easily replace WidthProvider with your own Provider HOC if you need more sophisticated logic.

WidthProvider accepts a single prop, measureBeforeMount. If true, WidthProvider will measure the container's width before mounting children. Use this if you'd like to completely eliminate any resizing animation on application/component mount.

Have a more complicated layout? WidthProvider is very simple and only listens to window 'resize' events. If you need more power and flexibility, try the SizeMe React HOC as an alternative to WidthProvider.

Grid Layout Props

RGL supports the following properties (see the source for the final word on this):

//
// Basic props
//

// This allows setting the initial width on the server side.
// This is required unless using the HOC <WidthProvider> or similar
width: number,

// If true, the container height swells and contracts to fit contents
autoSize: ?boolean = true,

// Number of columns in this layout.
cols: ?number = 12,

// A CSS selector for tags that will not be draggable.
// For example: draggableCancel:'.MyNonDraggableAreaClassName'
// If you forget the leading . it will not work.
draggableCancel: ?string = '',

// A CSS selector for tags that will act as the draggable handle.
// For example: draggableHandle:'.MyDragHandleClassName'
// If you forget the leading . it will not work.
draggableHandle: ?string = '',

// If true, the layout will compact vertically
verticalCompact: ?boolean = true,

// Compaction type.
compactType: ?('vertical' | 'horizontal') = 'vertical';

// Layout is an array of object with the format:
// {x: number, y: number, w: number, h: number}
// The index into the layout must match the key used on each item component.
// If you choose to use custom keys, you can specify that key in the layout
// array objects like so:
// {i: string, x: number, y: number, w: number, h: number}
layout: ?array = null, // If not provided, use data-grid props on children

// Margin between items [x, y] in px.
margin: ?[number, number] = [10, 10],

// Padding inside the container [x, y] in px
containerPadding: ?[number, number] = margin,

// Rows have a static height, but you can change this based on breakpoints
// if you like.
rowHeight: ?number = 150,

//
// Flags
//
isDraggable: ?boolean = true,
isResizable: ?boolean = true,
isBounded: ?boolean = false,
// Uses CSS3 translate() instead of position top/left.
// This makes about 6x faster paint performance
useCSSTransforms: ?boolean = true,

// If true, grid items won't change position when being
// dragged over.
preventCollision: ?boolean = false;

//
// Callbacks
//

// Callback so you can save the layout.
// Calls back with (currentLayout) after every drag or resize stop.
onLayoutChange: (layout: Layout) => void,

//
// All callbacks below have signature (layout, oldItem, newItem, placeholder, e, element).
// 'start' and 'stop' callbacks pass `undefined` for 'placeholder'.
//
type ItemCallback = (layout: Layout, oldItem: LayoutItem, newItem: LayoutItem,
                     placeholder: LayoutItem, e: MouseEvent, element: HTMLElement) => void;

// Calls when drag starts.
onDragStart: ItemCallback,
// Calls on each drag movement.
onDrag: ItemCallback,
// Calls when drag is complete.
onDragStop: ItemCallback,
// Calls when resize starts.
onResizeStart: ItemCallback,
// Calls when resize movement happens.
onResize: ItemCallback,
// Calls when resize is complete.
onResizeStop: ItemCallback

Responsive Grid Layout Props

The responsive grid layout can be used instead. It supports all of the props above, excepting layout. The new properties and changes are:

// {name: pxVal}, e.g. {lg: 1200, md: 996, sm: 768, xs: 480}
// Breakpoint names are arbitrary but must match in the cols and layouts objects.
breakpoints: ?Object = {lg: 1200, md: 996, sm: 768, xs: 480, xxs: 0},

// # of cols. This is a breakpoint -> cols map, e.g. {lg: 12, md: 10, ...}
cols: ?Object = {lg: 12, md: 10, sm: 6, xs: 4, xxs: 2},

// layouts is an object mapping breakpoints to layouts.
// e.g. {lg: Layout, md: Layout, ...}
layouts: {[key: $Keys<breakpoints>]: Layout}

//
// Callbacks
//

// Calls back with breakpoint and new # cols
onBreakpointChange: (newBreakpoint: string, newCols: number) => void,

// Callback so you can save the layout.
// AllLayouts are keyed by breakpoint.
onLayoutChange: (currentLayout: Layout, allLayouts: {[key: $Keys<breakpoints>]: Layout}) => void,

// Callback when the width changes, so you can modify the layout as needed.
onWidthChange: (containerWidth: number, margin: [number, number], cols: number, containerPadding: [number, number]) => void;

Grid Item Props

RGL supports the following properties on grid items or layout items. When initializing a grid, build a layout array (as in the first example above), or attach this object as the data-grid property to each of your child elements (as in the second example).

Note that if a grid item is provided but incomplete (missing one of x, y, w, or h), an error will be thrown so you can correct your layout.

If no properties are provided for a grid item, one will be generated with a width and height of 1.

You can set minimums and maximums for each dimension. This is for resizing; it of course has no effect if resizing is disabled. Errors will be thrown if your mins and maxes overlap incorrectly, or your initial dimensions are out of range.

Any <GridItem> properties defined directly will take precedence over globally-set options. For example, if the layout has the property isDraggable: false, but the grid item has the prop isDraggable: true, the item will be draggable.

{

  // A string corresponding to the component key
  i: string,

  // These are all in grid units, not pixels
  x: number,
  y: number,
  w: number,
  h: number,
  minW: ?number = 0,
  maxW: ?number = Infinity,
  minH: ?number = 0,
  maxH: ?number = Infinity,

  // If true, equal to `isDraggable: false, isResizable: false`.
  static: ?boolean = false,
  // If false, will not be draggable. Overrides `static`.
  isDraggable: ?boolean = true,
  // If false, will not be resizable. Overrides `static`.
  isResizable: ?boolean = true,
  // If true and draggable, item will be moved only within grid.
  isBounded: ?boolean = false
}

Contribute

If you have a feature request, please add it as an issue or make a pull request.

If you have a bug to report, please reproduce the bug in WebpackBin to help us easily isolate it.

TODO List

[x] Basic grid layout
[x] Fluid grid layout
[x] Grid packing
[x] Draggable grid items
[x] Live grid packing while dragging
[x] Resizable grid items
[x] Layouts per responsive breakpoint
[x] Define grid attributes on children themselves (data-grid key)
[x] Static elements
[x] Persistent id per item for predictable localstorage restores, even when # items changes
[x] Min/max w/h per item
[ ] Resizable handles on other corners
[ ] Configurable w/h per breakpoint