dw-neit-rc-util

Common Utils For React Component.

Install

API

createChainedFunction

(...functions): Function

Create a function which will call all the functions with it's arguments from left to right.

1import createChainedFunction from 'dw-neit-rc-util/lib/createChainedFunction';

deprecated

(prop: string, instead: string, component: string): void

Log an error message to warn developers that prop is deprecated.

1import deprecated from 'dw-neit-rc-util/lib/deprecated';

getContainerRenderMixin

(config: Object): Object

To generate a mixin which will render specific component into specific container automatically.

1import getContainerRenderMixin from 'dw-neit-rc-util/lib/getContainerRenderMixin';

Fields in config and their meanings.

Field	Type	Description	Default
autoMount	boolean	Whether to render component into container automatically	true
autoDestroy	boolean	Whether to remove container automatically while the component is unmounted	true
isVisible	(instance): boolean	A function to get current visibility of the component	-
isForceRender	(instance): boolean	A function to determine whether to render popup even it's not visible	-
getComponent	(instance, extra): ReactNode	A function to get the component which will be rendered into container	-
getContainer	(instance): HTMLElement	A function to get the container

Portal

Render children to the specific container;

1import Portal from 'dw-neit-rc-util/lib/Portal';

Props:

Prop	Type	Description	Default
children	ReactChildren	Content render to the container	-
getContainer	(): HTMLElement	A function to get the container	-

getScrollBarSize

(fresh?: boolean): number

Get the width of scrollbar.

1import getScrollBarSize from 'dw-neit-rc-util/lib/getScrollBarSize';

guid

(): string

To generate a global unique id across current application.

1import guid from 'dw-neit-rc-util/lib/guid';

pickAttrs

(props: Object): Object

Pick valid HTML attributes and events from props.

1import pickAttrs from 'dw-neit-rc-util/lib/pickAttrs';

warn

(msg: string): void

A shallow wrapper of console.warn.

1import warn from 'dw-neit-rc-util/lib/warn';

warning

(valid: boolean, msg: string): void

A shallow wrapper of warning, but only warning once for the same message.

1import warning, { noteOnce } from 'dw-neit-rc-util/lib/warning';
2
3warning(false, '[antd Component] test hello world');
4
5// Low level note
6noteOnce(false, '[antd Component] test hello world');

Children

A collection of functions to operate React elements' children.

Children/mapSelf

(children): children

Return a shallow copy of children.

1import mapSelf from 'dw-neit-rc-util/lib/Children/mapSelf';

Children/toArray

(children: ReactNode[]): ReactNode[]

Convert children into an array.

1import toArray from 'dw-neit-rc-util/lib/Children/toArray';

Dom

A collection of functions to operate DOM elements.

Dom/addEventlistener

(target: ReactNode, eventType: string, listener: Function): { remove: Function }

A shallow wrapper of add-dom-event-listener.

1import addEventlistener from 'dw-neit-rc-util/lib/Dom/addEventlistener';

Dom/canUseDom

(): boolean

Check if DOM is available.

1import canUseDom from 'dw-neit-rc-util/lib/Dom/canUseDom';

Dom/class

A collection of functions to operate DOM nodes' class name.

• hasClass(node: HTMLElement, className: string): boolean
• addClass(node: HTMLElement, className: string): void
• removeClass(node: HTMLElement, className: string): void

1import cssClass from 'dw-neit-rc-util/lib/Dom/class;

Dom/contains

(root: HTMLElement, node: HTMLElement): boolean

Check if node is equal to root or in the subtree of root.

1import contains from 'dw-neit-rc-util/lib/Dom/contains';

Dom/css

A collection of functions to get or set css styles.

• get(node: HTMLElement, name?: string): any
• set(node: HTMLElement, name?: string, value: any) | set(node, object)
• getOuterWidth(el: HTMLElement): number
• getOuterHeight(el: HTMLElement): number
• getDocSize(): { width: number, height: number }
• getClientSize(): { width: number, height: number }
• getScroll(): { scrollLeft: number, scrollTop: number }
• getOffset(node: HTMLElement): { left: number, top: number }

1import css from 'dw-neit-rc-util/lib/Dom/css';

Dom/focus

A collection of functions to operate focus status of DOM node.

• saveLastFocusNode(): void
• clearLastFocusNode(): void
• backLastFocusNode(): void
• getFocusNodeList(node: HTMLElement): HTMLElement[] get a list of focusable nodes from the subtree of node.
• limitTabRange(node: HTMLElement, e: Event): void

1import focus from 'dw-neit-rc-util/lib/Dom/focus';

Dom/support

{ animation: boolean | Object, transition: boolean | Object }

A flag to tell whether current environment supports animationend or transitionend.

1import support from 'dw-neit-rc-util/lib/Dom/support';

KeyCode

Enum

Enum of KeyCode, please check the definition of it.

1import KeyCode from 'dw-neit-rc-util/lib/KeyCode';

KeyCode.isTextModifyingKeyEvent

(e: Event): boolean

Whether text and modified key is entered at the same time.

KeyCode.isCharacterKey

(keyCode: KeyCode): boolean

Whether character is entered.

ScrollLocker

ScrollLocker<{lock: (options: {container: HTMLElement}) => void, unLock: () => void}>

improve shake when page scroll bar hidden.

ScrollLocker change body style, and add a class ant-scrolling-effect when called, so if you page look abnormal, please check this;

1import ScrollLocker from 'dw-neit-rc-util/lib/Dom/scrollLocker';
2
3const scrollLocker = new ScrollLocker();
4
5// lock
6scrollLocker.lock()
7
8// unLock
9scrollLocker.unLock()

License

MIT