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| <template>
<div class="mu-tooltip" :class="{'touched': touch, 'when-shown': show}" :style="tooltipStyle">
<div class="mu-tooltip-ripple" :style="rippleStyle" :class="{'when-shown': show}" ref="ripple">
</div>
<span class="mu-tooltip-label">{{label}}</span>
</div>
</template>
<script>
export default {
name: 'mu-tooltip',
props: {
label: {
type: String
},
trigger: {
type: Element
},
verticalPosition: {
type: String, // top bottom
default: 'bottom'
},
horizontalPosition: {
type: String, // left right center
default: 'center'
},
show: {
type: Boolean,
default: false
},
touch: {
type: Boolean,
default: false
}
},
data () {
return {
offsetWidth: 0,
triggerWidth: 0,
triggerHeight: 0
}
},
computed: {
tooltipStyle () {
const {horizontalPosition, verticalPosition, offsetWidth, touch, triggerWidth, triggerHeight, show} = this
const touchMarginOffset = touch ? 10 : 0
const touchOffsetTop = touch ? -20 : -10
const offset = verticalPosition === 'bottom' ? 14 + touchMarginOffset : -14 - touchMarginOffset
return {
right: horizontalPosition === 'left' ? '0' : null,
left: horizontalPosition === 'center' ? ((offsetWidth - triggerWidth) / 2 * -1) + 'px' : horizontalPosition === 'right' ? '0' : '',
top: !show ? '-3000px' : verticalPosition === 'top' ? touchOffsetTop + 'px' : (triggerHeight - offset + touchMarginOffset + 2) + 'px',
transform: `translate(0px, ${offset}px)`
}
},
rippleStyle () {
const {horizontalPosition, verticalPosition} = this
return {
left: horizontalPosition === 'center' ? '50%' : horizontalPosition === 'left' ? '100%' : '0%',
top: verticalPosition === 'bottom' ? '0' : '100%'
}
}
},
methods: {
setRippleSize () {
const ripple = this.$refs.ripple
const tooltip = this.$el
const tooltipWidth = parseInt(tooltip.offsetWidth, 10) / (this.horizontalPosition === 'center' ? 2 : 1)
const tooltipHeight = parseInt(tooltip.offsetHeight, 10)
const rippleDiameter = Math.ceil((Math.sqrt(Math.pow(tooltipHeight, 2) + Math.pow(tooltipWidth, 2)) * 2))
if (this.show) {
ripple.style.height = `${rippleDiameter}px`
ripple.style.width = `${rippleDiameter}px`
} else {
ripple.style.width = '0px'
ripple.style.height = '0px'
}
},
setTooltipSize () {
this.offsetWidth = this.$el.offsetWidth
if (!this.trigger) return
this.triggerWidth = this.trigger.offsetWidth
this.triggerHeight = this.trigger.offsetHeight
}
},
mounted () {
this.setRippleSize()
this.setTooltipSize()
},
beforeUpdate () {
this.setTooltipSize()
},
updated () {
this.setRippleSize()
}
}
</script>
<style lang="less">
@import "../styles/import.less";
.mu-tooltip{
position: absolute;
font-size: 10px;
line-height: 22px;
padding: 0 8px;
z-index: 300;
color: @alternateTextColor;
overflow: hidden;
top: -1000px;
border-radius: 2px;
user-select: none;
opacity: 0;
transition: top 0ms @easeOutFunction 450ms, transform 450ms @easeOutFunction 0ms, opacity 450ms @easeOutFunction 0ms;
&.when-shown {
opacity: 0.9;
transition: top 0ms @easeOutFunction 0ms, transform 450ms @easeOutFunction 0ms, opacity 450ms @easeOutFunction 0ms;
}
&.touched{
font-size: 14px;
line-height: 32px;
padding: 0 16px;
}
}
.mu-tooltip-ripple{
position: absolute;
transform: translate(-50%, -50%);
border-radius: 50%;
background-color: transparent;
transition: width 0ms @easeOutFunction 450ms, height 0ms @easeOutFunction 450ms, background-color 450ms @easeOutFunction 0ms;
&.when-shown {
background-color: @grey700;
transition: width 450ms @easeOutFunction 0ms, height 450ms @easeOutFunction 0ms, background-color 450ms @easeOutFunction 0ms;
}
}
.mu-tooltip-label {
white-space: nowrap;
position: relative;
}
</style>
|