PropertyEvent

元素属性事件，leafer.ready 事件之后才会派发此事件。

事件派发的顺序为：元素自身、Leafer 实例，渲染生命周期 中会监听此事件。

事件名称

PropertyEvent.CHANGE

同时派发给元素自身、Leafer 实例。

property.change

PropertyEvent.LEAFER_CHANGE

只派发给 Leafer 实例自身。

property.leafer_change

关键属性

target: ILeaf

目标对象

attrName: string

属性名称。

oldValue: IValue

旧的值。

newValue: IValue

新的值。

继承

Event

示例

property.ts

import { Leafer, Rect, LeaferEvent, PropertyEvent } from 'leafer-ui'

const leafer = new Leafer({ view: window })

const rect = new Rect({ x: 100, y: 100, fill: '#32cd79', draggable: true })

leafer.add(rect)

function onReady() {

    leafer.on(PropertyEvent.CHANGE, function (e: PropertyEvent) {
        console.log('leafer', e.target, e.attrName, e.newValue, e.oldValue)
    })

    rect.on(PropertyEvent.CHANGE, function (e: PropertyEvent) {
        console.log('leaf', e.target, e.attrName, e.newValue, e.oldValue)
    })

    rect.fill = 'blue'
}

leafer.on(LeaferEvent.READY, onReady)

property.js

import { Leafer, Rect, LeaferEvent, PropertyEvent } from 'leafer-ui'

const leafer = new Leafer({ view: window })

const rect = new Rect({ x: 100, y: 100, fill: '#32cd79', draggable: true })

leafer.add(rect)

function onReady() {

    leafer.on(PropertyEvent.CHANGE, function (e) {
        console.log('leafer', e.target, e.attrName, e.newValue, e.oldValue)
    })

    rect.on(PropertyEvent.CHANGE, function (e) {
        console.log('leaf', e.target, e.attrName, e.newValue, e.oldValue)
    })

    rect.fill = 'blue'
}

leafer.on(LeaferEvent.READY, onReady)