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| <template>
| <uni-progress
| class="uni-progress"
| v-on="$listeners"
| >
| <div
| :style="outerBarStyle"
| class="uni-progress-bar"
| >
| <div
| :style="innerBarStyle"
| class="uni-progress-inner-bar"
| />
| </div>
| <template v-if="showInfo">
| <p class="uni-progress-info">
| {{ currentPercent }}%
| </p>
| </template>
| </uni-progress>
| </template>
| <script>
| const VALUES = {
| activeColor: '#007AFF',
| backgroundColor: '#EBEBEB',
| activeMode: 'backwards'
| }
| export default {
| name: 'Progress',
| props: {
| percent: {
| type: [Number, String],
| default: 0,
| validator (value) {
| return !isNaN(parseFloat(value, 10))
| }
| },
| showInfo: {
| type: [Boolean, String],
| default: false
| },
| strokeWidth: {
| type: [Number, String],
| default: 6,
| validator (value) {
| return !isNaN(parseFloat(value, 10))
| }
| },
| color: {
| type: String,
| default: VALUES.activeColor
| },
| activeColor: {
| type: String,
| default: VALUES.activeColor
| },
| backgroundColor: {
| type: String,
| default: VALUES.backgroundColor
| },
| active: {
| type: [Boolean, String],
| default: false
| },
| activeMode: {
| type: String,
| default: VALUES.activeMode
| },
| duration: {
| type: [Number, String],
| default: 30,
| validator (value) {
| return !isNaN(parseFloat(value, 10))
| }
| }
| },
| data () {
| return {
| currentPercent: 0,
| strokeTimer: 0,
| lastPercent: 0
| }
| },
| computed: {
| outerBarStyle () {
| return `background-color: ${this.backgroundColor}; height: ${this.strokeWidth}px;`
| },
| innerBarStyle () {
| // 兼容下不推荐的属性，activeColor 优先级高于 color。
| let backgroundColor = ''
| if (this.color !== VALUES.activeColor && this.activeColor === VALUES.activeColor) {
| backgroundColor = this.color
| } else {
| backgroundColor = this.activeColor
| }
| return `width: ${this.currentPercent}%;background-color: ${backgroundColor}`
| },
| realPercent () {
| // 确保最终计算时使用的是 Number 类型的值，并且在有效范围内。
| let realValue = parseFloat(this.percent, 10)
| realValue < 0 && (realValue = 0)
| realValue > 100 && (realValue = 100)
| return realValue
| }
| },
| watch: {
| realPercent (newValue, oldValue) {
| this.strokeTimer && clearInterval(this.strokeTimer)
| this.lastPercent = oldValue || 0
| this._activeAnimation()
| }
| },
| created () {
| this._activeAnimation()
| },
| methods: {
| _activeAnimation () {
| if (this.active) {
| this.currentPercent = this.activeMode === VALUES.activeMode ? 0 : this.lastPercent
| this.strokeTimer = setInterval(() => {
| if (this.currentPercent + 1 > this.realPercent) {
| this.currentPercent = this.realPercent
| this.strokeTimer && clearInterval(this.strokeTimer)
| } else {
| this.currentPercent += 1
| }
| }, parseFloat(this.duration))
| } else {
| this.currentPercent = this.realPercent
| }
| }
| }
| }
| </script>
| <style>
| uni-progress {
| display: -webkit-flex;
| display: flex;
| -webkit-align-items: center;
| align-items: center;
| }
|
| uni-progress[hidden] {
| display: none;
| }
|
| .uni-progress-bar {
| -webkit-flex: 1;
| flex: 1;
| }
|
| .uni-progress-inner-bar {
| width: 0;
| height: 100%;
| }
|
| .uni-progress-info {
| margin-top: 0;
| margin-bottom: 0;
| min-width: 2em;
| margin-left: 15px;
| font-size: 16px;
| }
| </style>
|
|
