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ant-design-vue/components/tooltip/tooltip.vue

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8.0 KiB

<script>
import Vue from 'vue'
export default {
name: 'ToolTip',
props: {
title: String,
prefixCls: {
default: 'ant-tooltip',
},
placement: {
default: 'top',
validator: val => ['top', 'left', 'right', 'bottom', 'topLeft', 'topRight', 'bottomLeft', 'bottomRight', 'leftTop', 'leftBottom', 'rightTop', 'rightBottom'].includes(val),
},
transitionName: {
default: 'zoom-big-fast',
},
mouseEnterDelay: {
default: 0.1,
},
mouseLeaveDelay: {
default: 0.1,
},
arrowPointAtCenter: {
default: false,
},
autoAdjustOverflow: {
default: true,
},
},
data () {
return {
vnode: null,
visible: false,
left: 0,
top: 0,
realPlacement: this.placement,
t1: null,
t2: null,
}
},
computed: {
classes () {
const { prefixCls } = this
return {
[`${prefixCls}`]: true,
}
},
},
methods: {
checkPosition (popup, text, placement) {
const { top, left, bottom, right } = text
const reg = /(top|bottom|left|right)(.*)/
const [, abstractPos, suffix] = placement.match(reg)
let ret = placement
// we can change the position many times
if (abstractPos === 'left' && left < popup.width) ret = 'right' + suffix
if (abstractPos === 'right' && document.documentElement.clientWidth - right < popup.width) ret = 'left' + suffix
if (abstractPos === 'top' && top < popup.height) ret = 'bottom' + suffix
if (abstractPos === 'bottom' && document.documentElement.clientHeight - bottom < popup.height) ret = 'left' + suffix
return ret
},
mountNode (callback) {
if (this.vnode) {
callback()
return
}
const div = document.createElement('div')
document.body.appendChild(div)
const that = this
const vnode = new Vue({
data () {
return {
left: 0,
top: 0,
}
},
methods: {
hideSelf (e) {
if (that.t1) {
clearTimeout(that.t1)
that.t1 = null
}
if (that.mouseLeaveDelay) {
that.t2 = window.setTimeout(() => {
if (e.relatedTarget === that.$el) {
return
}
that.visible = false
}, +that.mouseLeaveDelay * 1e3)
}
},
},
render (h) {
return (
<transition name={that.transitionName}>
<div
v-show={that.visible}
class={`ant-tooltip ant-tooltip-placement-${that.realPlacement}`}
style={{ left: this.left + 'px', top: this.top + 'px' }}
onMouseleave={this.hideSelf}
>
<div class='ant-tooltip-content'>
<div class='ant-tooltip-arrow'/>
<div class='ant-tooltip-inner'>
<span>{that.title}</span>
</div>
</div>
</div>
</transition>
)
},
}).$mount(div)
this.$nextTick(() => {
this.vnode = vnode
callback()
})
},
onPopupAlign: (placement, domNode, target, align) => {
if (!placement) {
return
}
// 根据当前坐标设置动画点
const rect = domNode.getBoundingClientRect()
const transformOrigin = {
top: '50%',
left: '50%',
}
if (placement.indexOf('top') >= 0 || placement.indexOf('Bottom') >= 0) {
transformOrigin.top = `${rect.height - align.offset[1]}px`
} else if (placement.indexOf('Top') >= 0 || placement.indexOf('bottom') >= 0) {
transformOrigin.top = `${-align.offset[1]}px`
}
if (placement.indexOf('left') >= 0 || placement.indexOf('Right') >= 0) {
transformOrigin.left = `${rect.width - align.offset[0]}px`
} else if (placement.indexOf('right') >= 0 || placement.indexOf('Left') >= 0) {
transformOrigin.left = `${-align.offset[0]}px`
}
target.style.transformOrigin = `${transformOrigin.left} ${transformOrigin.top}`
},
addEventHandle (old, fn) {
if (!old) {
return fn
} else if (Array.isArray(old)) {
return old.indexOf(fn) > -1 ? old : old.concat(fn)
} else {
return old === fn ? old : [old, fn]
}
},
computeOffset (popup, text, placement, scale) {
let { width, height, top, left } = text
// you cant change the properties of DOMRect
top += window.scrollY
left += window.scrollX
// FIXME: we can get the numbers from scale, but that's not what we really want
const p = { width: popup.width / scale, height: popup.height / scale }
const ret = { left, top }
if (/top/.test(placement)) ret.top -= p.height
if (/bottom/.test(placement)) ret.top += height
if (/left/.test(placement)) ret.left -= p.width
if (/right/.test(placement)) ret.left += width
// FIXME: magic number 20 & 14 comes from the offset of triangle
if (/Left/.test(placement)) {
if (this.arrowPointAtCenter) ret.left += width / 2 - 20
} else if (/Right/.test(placement)) {
ret.left += (width - p.width)
if (this.arrowPointAtCenter) ret.left -= width / 2 - 20
} else if (/(top)|(bottom)/.test(placement)) {
ret.left += (width - p.width) / 2
}
if (/Top/.test(placement)) {
if (this.arrowPointAtCenter) ret.top += height / 2 - 14
} else if (/Bottom/.test(placement)) {
ret.top += (height - p.height)
if (this.arrowPointAtCenter) ret.top -= height / 2 - 14
} else if (/(left)|(right)/.test(placement)) {
ret.top += (height - p.height) / 2
}
return ret
},
showNode () {
this.mountNode(() => {
this.visible = true
this.$nextTick(() => {
const popup = this.vnode.$el.getBoundingClientRect()
const [, scale = 1] = window.getComputedStyle(this.vnode.$el).transform.match(/matrix\((.*?),/) || []
const content = this.$el.getBoundingClientRect()
const place = this.autoAdjustOverflow ? this.checkPosition(popup, content, this.placement, scale) : this.placement
this.realPlacement = place
const { left, top } = this.computeOffset(popup, content, place, scale)
this.vnode.left = left
this.vnode.top = top
})
this.onPopupAlign(this.realPlacement, this.$el, this.vnode.$el, { offset: [0, 0] })
})
},
hideNode (e) {
if (!this.vnode) return
if (e.relatedTarget === this.vnode.$el) {
return
}
this.visible = false
},
checkShow (e) {
if (this.t2) {
clearTimeout(this.t2)
this.t2 = null
}
if (this.mouseEnterDelay) {
this.t1 = window.setTimeout(() => {
this.showNode(e)
}, +this.mouseEnterDelay * 1e3)
}
},
checkHide (e) {
if (this.t1) {
clearTimeout(this.t1)
this.t1 = null
}
if (this.mouseLeaveDelay) {
this.t2 = window.setTimeout(() => {
this.hideNode(e)
}, +this.mouseLeaveDelay * 1e3)
}
},
},
render (h) {
const inner = this.$slots.default[0]
inner.data = inner.data || {}
inner.data.on = inner.data.on || {}
inner.data.on.mouseenter = this.addEventHandle(inner.data.on.mouseenter, this.checkShow)
inner.data.on.mouseleave = this.addEventHandle(inner.data.on.mouseleave, this.checkHide)
return this.$slots.default[0]
},
updated () {
if (!this.vnode) return
const popup = this.vnode.$el.getBoundingClientRect()
const [, scale = 1] = window.getComputedStyle(this.vnode.$el).transform.match(/matrix\((.*?),/) || []
const content = this.$el.getBoundingClientRect()
const { left, top } = this.computeOffset(popup, content, this.realPlacement, scale)
this.vnode.left = left
this.vnode.top = top
},
beforeDestroy () {
if (!this.vnode) return
this.vnode.$el.remove()
this.vnode.$destroy()
},
}
</script>