dt2react

descr

ONE DOM helper library for react

Install

``bash
npm install dt2react;
`

Example

`js
const { addClass } = dt2react;
`

Documnets

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* cancelAnimationFramePolyfill
* nativeRequestAnimationFrame
* requestAnimationFramePolyfill
* cssAnimation
* throttleAnamition { throttleAnamition, throttleAnamitionDecorator }

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* addClass
* classList
* classList2
* hasClass
* removeClass
* toggleClass

`js
hasClass(node, className)
addClass(node, className)
removeClass(node, className)
`

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`js
on()
off()
onFocus()
`

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`js
getOffsetPosition(domEle): { top: number, left: number};
getWindowSize(): { width: number, height: number};
`

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* Align
* childrenToArray
* mapSelf
* immutableUpdate
* enhancePortal
* Portal
* reactEvents
* getDefaultContainer
* PureRenderDeepMixin
* PureRenderMixin
* ResizeDetector
* RemoteViewer
* ScriptViewer

#### Align

#### childrenToArray

#### mapSelf

#### immutableUpdate

Make setState easily and immutably. more info immutability-helper.

- No need to call setState manually

- No need to build syntactic sugar like {x: {y: {$set: 1}}}, just pass x.y and 1

* example

`js
import { immutableUpdate as update } from 'dt2react';

class Todos extends Component {

constructor() {
super()
this.update = update.bind(this)
this.state = {
text: '',
items: []
}
}

render() {
const { text, items } = this.state
const update = this.update
return (



)
}
}
`

* api

Bind component and execute setState automatically

`js
import { immutableUpdate as update } from 'dt2react';

class App extends Component {

constructor() {
super()
this.update = update.bind(this)
this.state = {
name: 'John',
relation: {
family: 0,
friend: 1
},
honor: ['1', '2', '3']
}
}

someUsage() {
this.update('set', 'name', 'Wall')
this.update('set', 'relation.family', 1)
this.update('set', ['relation', 'family'], 0)
this.update('set', {
name: 'Jamas',
'relation.friend': 0
})
this.update('push', 'honor', '4') // ['1', '2', '3', '4']
this.update('splice', 'honor', 0) // ['2', '3', '4']

// All above actions just render once and all state has changed.
}
}
`

* Silent usage

which would not execute setState automatically

`js
import { immutableUpdate as update } from 'dt2react';

const myData = { x: { y: 0 } }
const newData = update(myData, 'set', 'x.y', 1)
console.log(newData) // {x: {y: 1}}
`

#### enhancePortal

#### Portal

#### reactEvents

wrapper of eventlistener

`js
import addEventListener from 'dt2react/lib/events/eventlistener';

var handler = addEventListener(document.body, 'click', function(e){
console.log(e.target); // works for ie
console.log(e.nativeEvent); // native dom event
});
handler.remove(); // detach event listener
`

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

`js
import addEventlistener from 'dt2react/lib/react/reactEvents';
`

#### getDefaultContainer

> create default container

`js
const rootDiv = getDefaultContainer();

`

#### PureRenderMixin

`js
import PureRenderMixin from 'dt2react/lib/react/PureRenderMixin';

shouldComponentUpdate(nextProps, nextState) {
return PureRenderMixin.shouldComponentUpdate.call(this, nextProps, nextState);
}

// or

shouldComponentUpdate(...args) {
return PureRenderMixin.shouldComponentUpdate.apply(this, args);
}
`

#### PureRenderDeepMixin

> deep compare

`js
import PureRenderDeepMixin from 'dt2react/lib/react/PureRenderDeepMixin';

shouldComponentUpdate(nextProps, nextState) {
return PureRenderDeepMixin.shouldComponentUpdate.call(this, nextProps, nextState);
}

// or

shouldComponentUpdate(...args) {
return PureRenderDeepMixin.shouldComponentUpdate.apply(this, args);
}
`

#### ResizeDetector

`js
import withResize, { ResizeDetector } from 'dt2react/lib/react/withResize';

`

#### RemoteViewer

`js
import RemoteViewer, { getRemoteComponent, getRemoteModule } from 'dt2react/lib/react/RemoteViewer';

export const WebStudioExecutor = getRemoteComponent({
scriptConfig: {
key: 'amosasp',
url: getMfUrl('amosasp_dist/remoteEntry.js')
},
scope: 'amosasp',
module: './amos-webstudio',
onDone: (d) => d.WebStudioExecutor
});
`

直接使用远程模块

`js
import { getRemoteModule } from 'dt2react/lib/react/RemoteViewer';

function getMfUrl(entry) {
// 注意 __mf_prefix_url__ ，结尾不能写后缀 /
// 如下方式，支持设置 __mf_prefix_url__=''
if (window.__mf_prefix_url__ !== undefined || window.__mf_prefix_url__ !== null){
return ${window.__mf_prefix_url__}/${entry};
}
return /mf_lib/${entry};
}

export const mfRV = getRemoteModule({
scriptConfig: {
key: 'amosmf',
url: getMfUrl('amosmf_dist/remoteEntry.js')
},
scope: 'amosmf',
module: './handsontable',
onDone: (d) => ({
HotTable: d.HotTable,
HotColumn: d.HotColumn
}),
debugConfig
});

// demo
class HTableDemo extends Component {
constructor(props) {
super(props);
this.state = {
laoding: true,
HotTable: null,
HotColumn: null
};

this._asyncInit();
}

_asyncInit = () => {
mfRV.loadMf(({ HotTable, HotColumn }) => {
this.setState({
laoding: false,
HotTable,
HotColumn
});
});
}

render() {
const { laoding, HotTable, HotColumn } = this.state;
if (laoding){
return null;
}
return (



);
}
}
`

#### ScriptViewer

`js
import ScriptViewer, { getScriptComponent } from 'dt2react/lib/react/ScriptViewer';
import { BaseMap } from 'amos-amap';

function MyMap(){
return (


);
}

// 外部直接使用 MapViewer
const MapViewer = getScriptComponent({
scriptConfig: [
{ key: 'amap', url: 'http://webapi.amap.com/maps?v=1.4.3&key=xxxxxxxx' }
],
useBody: true,
deferred: true,
component: MyMap
});
`

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`js
calcScrollBarSize(fresh);// 获取当前浏览器滚动条宽度，推荐
getScrollbarWidth();
addPxToStyle(name, value);
domCss: { set, get };
getInnerHeight(el);
getInnerWidth(el);
getScroll(target, top);
prefixStyle(prop);
`




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`js
getStyle(node, property)
removeStyle(node, property)
addStyle(node, property, value)
`

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* warning

* invariant

* shallowEqual

* arrayTreeFilter

* createChainFunc

* debounce

* deprecated

* devtoolsCheck
import { startCheck } from 'dt2react/lib/utils/devtoolsCheck'; startCheck({ redirect, afterOpen, delay })。可用 window.enableDevtoolCheck 直接进行控制

* env check is dev: set NODE_ENV=development or NODE_ENV=production

* stringFormatter

* toCamelCase

* trim

* loadScripts

直接用于react

`js
componentDidMount() {
const script = {
key: 'amapscripts',
url: 'http://webapi.amap.com/maps?v=1.4.3&key=xxx'
};
document.getElementById('app').style.display = 'none';
tools.asyncLoadScript(script, () => {
document.getElementById('app').style.display = 'block';
render( navs={navs}
defaultNav="amapdemo"
logo="amos amap"
/>, document.getElementById('app'));
});

// tools.asyncLoadScripts(scripts, cb) 加载多个 [{key, url}, {key, url}]
}
`

* loadcss

`js
LoadCss.asyncLoadOne({
key: 'amosframework',
url: '/node_modules/amos-framework/dist/amosframework.css'
});

// 数组最前面的样式，优先级最低
LoadCss.asyncLoadList([
{
key: 'amosframework',
url: '/node_modules/amos-framework/dist/amosframework.css'
}
]);
`

* get dt2react/lib/utils/get

`js
import get from 'dt2react/lib/utils/get';

const object = { 'a': [{ 'b': { 'c': 3 } }] };
get(object, 'a[0].b.c'); // 3
get(object, ['a', '0', 'b', 'c']); // 3
get(object, 'a.b.c', 'default'); // default
`

* getCacheRequest dt2react/lib/utils/cacheRequest

`js
import { getCacheRequest } from 'dt2react/lib/utils/cacheRequest';

function getInfoAction(){
return commonGet(url);
}
const cacheGetInfoAction = getCacheRequest(getInfoAction, url);
// 使用时：
cacheGetInfoAction().then(data => { ... });
// 有参数的
function getUserAction(userId){
const _url = formatUrl(userInfoUrl, { userId });
return commonGet(_url);
}
const tags = formatUrl(userInfoUrl, { userId: 333 });
const cacheUserAction = getCacheRequest(getUserAction, tags);
// 有参数，动态生成 actionTag
const globalActionMapping = {};
function cacheUserAction2(userId){
const tags = formatUrl(userInfoUrl, { userId });
if (!globalActionMapping[tags]){
globalActionMapping[tags] = getCacheRequest(getUserAction, tags);
}
return globalActionMappingtags;
}
// 使用
cacheUserAction2('112233').then(data => { ... });
`

------ utils end

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`js
/**
* @return {bool} True if browser supports css animations.
*/
BrowserSupportCore.hasCSSAnimations();
/**
* @return {bool} True if browser supports css transforms.
*/
BrowserSupportCore.hasCSSTransforms();
/**
* @return {bool} True if browser supports css 3d transforms.
*/
BrowserSupportCore.hasCSS3DTransforms();
/**
* @return {bool} True if browser supports css transitions.
*/
BrowserSupportCore.hasCSSTransitions();
`

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`js
/**
* @param {string} property Name of a css property to check for.
* @return {?string} property name supported in the browser, or null if not
* supported.
*/
getVendorPrefixedName(property);
`

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`js
canUseDOM
activeElement()
contains(context, node)
getContainer(container, defaultContainer)
getHeight(node, client)

getOffset(node): { top, left, width, height }

getOffsetParent(node)
getPosition(node, offsetParent)
getScrollbarSize(recalc)
getWidth(node, client)
getWindow(node)
isOverflowing(container)
nodeName(node)
ownerDocument(componentOrElement)
ownerWindow(componentOrElement)
scrollLeft(node, val)
scrollTop(node, val)
`

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changelog

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use es modules

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modify LoadScripts, Optimize lib pkg

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add style/clientRect

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add style/lineHeight`

License

MIT