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完成评分组件

old
宇天 2019-09-16 14:42:37 +08:00
parent 3a15233bba
commit 91406587cc
1 changed files with 139 additions and 30 deletions

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@ -1,10 +1,10 @@
<template>
<label>
<wc-icon data-idx="0" is="star"></wc-icon>
<wc-icon data-idx="1" is="star"></wc-icon>
<wc-icon data-idx="2" is="star"></wc-icon>
<wc-icon data-idx="3" is="star"></wc-icon>
<wc-icon data-idx="4" is="star"></wc-icon>
<wc-icon data-idx="0" is="star" color="grey"></wc-icon>
<wc-icon data-idx="1" is="star" color="grey"></wc-icon>
<wc-icon data-idx="2" is="star" color="grey"></wc-icon>
<wc-icon data-idx="3" is="star" color="grey"></wc-icon>
<wc-icon data-idx="4" is="star" color="grey"></wc-icon>
<span class="text"></span>
</label>
</template>
@ -17,10 +17,14 @@
-moz-user-select: none;
user-select: none;
cursor: pointer;
font-size: 14px;
--size: 24px;
}
label {
display: flex;
align-items: center;
line-height: 0;
cursor: inherit;
wc-icon {
@ -31,10 +35,54 @@ label {
transform: scale(1.05);
}
}
span {
padding: 0 8px;
margin: 0 3px;
}
}
:host([size='large']) {
font-size: 16px;
--size: 36px;
}
:host([size='medium']) {
--size: 30px;
}
:host([size='mini']) {
font-size: 12px;
--size: 20px;
}
:host([color='red']) label span {
color: nth($cr, 1);
}
:host([color='teal']) label span {
color: nth($ct, 1);
}
:host([color='green']) label span {
color: nth($cg, 1);
}
:host([color='grey']) label span {
color: nth($cgr, 1);
}
:host([color='blue']) label span {
color: nth($cb, 1);
}
:host([color='purple']) label span {
color: nth($cpp, 1);
}
:host([color='orange']) label span {
color: nth($co, 1);
}
:host([disabled]) {
cursor: default;
opacity: 0.6;
label wc-icon:hover {
transform: none;
}
}
</style>
@ -45,8 +93,10 @@ export default class Star {
props = {
value: 0,
text: [],
size: 'small',
size: '',
color: '',
'allow-half': false,
'show-value': false,
starSize: 32, // 星星的宽度, 用于实现半星
disabled: false
}
@ -64,61 +114,103 @@ export default class Star {
set value(val) {
var v = +val
if (v === v) {
var tmp = val >> 0
if (v === v && v > 0) {
val = v
} else {
val = 0
}
if (val > 5) {
val = 5
}
this.props.value = val
this._updateDraw(-1)
}
// 更新图标渲染
_updateDraw(v, s = 0) {
/**
* 更新图标渲染
* i: int
* f: float
*/
_updateDraw(i, f = 0) {
var _last = 'star-half'
if (v === -1) {
v = this.value
s = +(v % 1).toFixed(1)
var { value, tmp = { i: 0, f: 0 } } = this.props
if (i === -1) {
i = Math.floor(value)
f = +(value % 1).toFixed(1)
if (i > 0 && i === value) {
i--
f = 1
}
}
if (!this.props['allow-half']) {
if (s > 0) {
s = 1
}
f = f > 0 ? 1 : 0
}
if (s > 0.5) {
// 减少DOM操作
if (i === tmp.i && f === tmp.f) {
return
}
if (f > 0.5) {
_last = 'star-full'
}
this.__STARS__.forEach((it, i) =>
it.setAttribute('is', i < v ? 'star-full' : 'star')
)
if (s > 0) {
this.__STARS__[v].setAttribute('is', _last)
this.__STARS__.forEach((it, k) => {
it.setAttribute('is', k < i ? 'star-full' : 'star')
it.setAttribute('color', k < i ? this.props.color : 'grey')
})
if (f > 0) {
this.__STARS__[i].setAttribute('is', _last)
this.__STARS__[i].setAttribute('color', this.props.color)
}
// 缓存结果
this.props.tmpValue = v + s
this.props.tmp = { i, f }
if (this.props.text.length) {
this.__TEXT__.textContent = this.props.text[v]
if (i === 0 && f === 0) {
this.__TEXT__.textContent = ''
} else {
if (this.props.text.length === 5) {
this.__TEXT__.textContent = this.props.text[i]
} else {
if (this.props['show-value']) {
this.__TEXT__.textContent = i + f
}
}
}
}
mounted() {
ebind(this.__BOX__, 'mousemove', ev => {
if (this.props.disabled) {
return
}
if (ev.target.tagName === 'WC-ICON') {
let idx = +ev.target.dataset.idx
this._updateDraw(idx, ev.offsetX / this.props.starSize)
this._updateDraw(idx, +(ev.offsetX / this.props.starSize).toFixed(1))
}
})
ebind(this.__BOX__, 'click', ev => {
// this._updateDraw()
this.props.value = this.props.tmpValue
var { tmp, disabled } = this.props
if (disabled) {
return
}
if (ev.target.tagName === 'WC-ICON') {
this.props.value = tmp.i + tmp.f
this.dispatchEvent(new CustomEvent('input'))
}
})
ebind(this.__BOX__, 'mouseleave', ev => {
if (this.props.disabled) {
return
}
this._updateDraw(-1)
})
}
@ -126,15 +218,32 @@ export default class Star {
watch() {
switch (name) {
case 'size':
this.__STARS__.forEach(it => it.setAttribute('size', val))
this.props.starSize = this.__STARS__[0].clientWidth
break
case 'allow-half':
this.props['allow-half'] = true
case 'show-value':
case 'disabled':
this.props[name] = true
break
default:
case 'color':
if (val) {
this.props.color = val
}
break
case 'text':
if (val) {
val = val.split('|')
if (val.length === 5) {
this.props.text = val.map(it => it.trim())
}
}
break
case 'value':
this.value = val
break
}
}