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import { debounce } from "@/utils"
export default {
data() {
return {
$_sidebarElm: null,
$_resizeHandler: null,
toTopHeight: 0,
clientHeight: 990,
}
},
computed: {
maxTableHeight() {
const h = this.clientHeight - this.toTopHeight - 140
return h >= 300 ? h : 300
},
},
mounted() {
this.$_resizeHandler = debounce(() => {
this.getClientHeight()
this.getToTopHeight()
}, 200)
this.$_initResizeEvent()
},
beforeDestroy() {
this.$_destroyResizeEvent()
},
// to fixed bug when cached by keep-alive
// https://github.com/PanJiaChen/vue-element-admin/issues/2116
activated() {
this.$_initResizeEvent()
},
deactivated() {
this.$_destroyResizeEvent()
},
methods: {
getToTopHeight() {
const el = this.$refs["selftab"].$el
this.toTopHeight = el.getBoundingClientRect().top
},
getClientHeight() {
this.clientHeight =
window.innerHeight ||
document.documentElement.clientHeight ||
document.body.clientHeight
},
// use $_ for mixins properties
// https://vuejs.org/v2/style-guide/index.html#Private-property-names-essential
$_initResizeEvent() {
this.getClientHeight()
this.getToTopHeight()
window.addEventListener("resize", this.$_resizeHandler)
},
$_destroyResizeEvent() {
window.removeEventListener("resize", this.$_resizeHandler)
},
},
}