dce3e753
 梁灏
add Tooltip compo...
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import Popper from 'popper.js';
/**
* https://github.com/freeze-component/vue-popper
* */
export default {
props: {
placement: {
type: String,
default: 'bottom'
},
boundariesPadding: {
type: Number,
default: 5
},
reference: Object,
popper: Object,
offset: {
default: 0
},
value: Boolean,
visibleArrow: Boolean,
transition: String,
options: {
type: Object,
default () {
return {};
}
}
},
data() {
return {
showPopper: false
};
},
watch: {
value: {
immediate: true,
handler(val) {
this.showPopper = val;
this.$emit('input', val);
}
},
showPopper(val) {
val ? this.updatePopper() : this.destroyPopper();
this.$emit('input', val);
}
},
methods: {
createPopper() {
if (!/^(top|bottom|left|right)(-start|-end)?$/g.test(this.placement)) {
return;
}
const options = this.options;
const popper = this.popper || this.$els.popper;
const reference = this.reference || this.$els.reference;
if (!popper || !reference) return;
if (this.visibleArrow) {
this.appendArrow(popper);
}
if (this.popperJS && this.popperJS.hasOwnProperty('destroy')) {
this.popperJS.destroy();
}
options.placement = this.placement;
options.offset = this.offset;
this.$nextTick(() => {
this.popperJS = new Popper(
reference,
popper,
options
);
this.popperJS.onCreate(popper => {
this.resetTransformOrigin(popper);
this.$emit('created', this);
});
});
},
updatePopper() {
if (this.popperJS) {
this.popperJS.update();
} else {
this.createPopper();
}
},
doDestroy() {
if (this.showPopper) return;
this.popperJS.destroy();
this.popperJS = null;
},
destroyPopper() {
if (this.popperJS) {
this.resetTransformOrigin(this.popperJS);
}
},
resetTransformOrigin(popper) {
let placementMap = {top: 'bottom', bottom: 'top', left: 'right', right: 'left'};
let placement = popper._popper.getAttribute('x-placement').split('-')[0];
let origin = placementMap[placement];
popper._popper.style.transformOrigin = ['top', 'bottom'].indexOf(placement) > -1 ? `center ${ origin }` : `${ origin } center`;
},
appendArrow(element) {
let hash;
if (this.appended) {
return;
}
this.appended = true;
for (let item in element.attributes) {
if (/^_v-/.test(element.attributes[item].name)) {
hash = element.attributes[item].name;
break;
}
}
const arrow = document.createElement('div');
if (hash) {
arrow.setAttribute(hash, '');
}
arrow.setAttribute('x-arrow', '');
arrow.className = 'popper__arrow';
element.appendChild(arrow);
}
},
beforeDestroy() {
if (this.popperJS) {
this.popperJS.destroy();
}
}
};
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