import { debounce } from '@/utils'
export default {
data() {
return {
$_sidebarElm: null,
$_resizeHandler: null
}
},
mounted() {
this.initListener()
},
activated() {
if (!this.$_resizeHandler) {
// avoid duplication init
this.initListener()
}
// when keep-alive chart activated, auto resize
this.resize()
},
beforeDestroy() {
this.destroyListener()
},
deactivated() {
this.destroyListener()
},
methods: {
// use $_ for mixins properties
// https://vuejs.org/v2/style-guide/index.html#Private-property-names-essential
$_sidebarResizeHandler(e) {
if (e.propertyName === 'width') {
this.$_resizeHandler()
}
},
initListener() {
this.$_resizeHandler = debounce(() => {
this.resize()
}, 100)
window.addEventListener('resize', this.$_resizeHandler)
this.$_sidebarElm = document.getElementsByClassName('sidebar-container')[0]
this.$_sidebarElm && this.$_sidebarElm.addEventListener('transitionend', this.$_sidebarResizeHandler)
},
destroyListener() {
window.removeEventListener('resize', this.$_resizeHandler)
this.$_resizeHandler = null
this.$_sidebarElm && this.$_sidebarElm.removeEventListener('transitionend', this.$_sidebarResizeHandler)
},
resize() {
const { chart } = this
chart && chart.resize()
}
}
}
