请教有关`if (widthContained === widthScroll)`判断的问题

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.

import createChainedFunction from 'rc-util/lib/createChainedFunction';

deprecated

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

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

import deprecated from 'rc-util/lib/deprecated';

getContainerRenderMixin

(config: Object): Object

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

import getContainerRenderMixin from '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;

import Portal from '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.

import getScrollBarSize from 'rc-util/lib/getScrollBarSize';

guid

(): string

To generate a global unique id across current application.

import guid from 'rc-util/lib/guid';

pickAttrs

(props: Object): Object

Pick valid HTML attributes and events from props.

import pickAttrs from 'rc-util/lib/pickAttrs';

warn

(msg: string): void

A shallow wrapper of console.warn.

import warn from 'rc-util/lib/warn';

warning

(valid: boolean, msg: string): void

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

import warning, { noteOnce } from 'rc-util/lib/warning';

warning(false, '[antd Component] test hello world');

// Low level note
noteOnce(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.

import mapSelf from 'rc-util/lib/Children/mapSelf';

Children/toArray

(children: ReactNode[]): ReactNode[]

Convert children into an array.

import toArray from '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.

import addEventlistener from 'rc-util/lib/Dom/addEventlistener';

Dom/canUseDom

(): boolean

Check if DOM is available.

import canUseDom from '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

import cssClass from '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.

import contains from '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 }

import css from '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

import focus from 'rc-util/lib/Dom/focus';

Dom/support

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

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

import support from 'rc-util/lib/Dom/support';

KeyCode

Enum

Enum of KeyCode, please check the definition of it.

import KeyCode from '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;

import ScrollLocker from 'rc-util/lib/Dom/scrollLocker';

const scrollLocker = new ScrollLocker();

// lock
scrollLocker.lock()

// unLock
scrollLocker.unLock()

License

MIT

	export function warning(valid: boolean, message: string) {
	// Support uglify
	if (process.env.NODE_ENV !== 'production' && !valid && console !== undefined) {
	console.error(`Warning: ${message}`);
	}
	}

react-component / util Goto Github PK

util's Introduction

rc-util

Install

API

createChainedFunction

deprecated

getContainerRenderMixin

Portal

getScrollBarSize

guid

pickAttrs

warn

warning

Children

Children/mapSelf

Children/toArray

Dom

Dom/addEventlistener

Dom/canUseDom

Dom/class

Dom/contains

Dom/css

Dom/focus

Dom/support

KeyCode

KeyCode.isTextModifyingKeyEvent

KeyCode.isCharacterKey

ScrollLocker

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