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- <template>
- <view class="u-slider" @tap="onClick" :class="[disabled ? 'u-slider--disabled' : '']" :style="{
- backgroundColor: inactiveColor
- }">
- <view
- class="u-slider__gap"
- :style="[
- barStyle,
- {
- height: height + 'rpx',
- backgroundColor: activeColor
- }
- ]"
- >
- <view class="u-slider__button-wrap" @touchstart="onTouchStart"
- @touchmove="onTouchMove" @touchend="onTouchEnd"
- @touchcancel="onTouchEnd">
- <slot v-if="$slots.default || $slots.$default"/>
- <view v-else class="u-slider__button" :style="[blockStyle, {
- height: blockWidth + 'rpx',
- width: blockWidth + 'rpx',
- backgroundColor: blockColor
- }]"></view>
- </view>
- </view>
- </view>
- </template>
- <script>
- export default {
- name: 'u-slider',
- props: {
-
- value: {
- type: [Number, String],
- default: 0
- },
-
- disabled: {
- type: Boolean,
- default: false
- },
-
- blockWidth: {
- type: [Number, String],
- default: 30
- },
-
- min: {
- type: [Number, String],
- default: 0
- },
-
- max: {
- type: [Number, String],
- default: 100
- },
-
- step: {
- type: [Number, String],
- default: 1
- },
-
- height: {
- type: [Number, String],
- default: 6
- },
-
- activeColor: {
- type: String,
- default: '#2979ff'
- },
-
- inactiveColor: {
- type: String,
- default: '#c0c4cc'
- },
-
- blockColor: {
- type: String,
- default: '#ffffff'
- },
-
- blockStyle: {
- type: Object,
- default() {
- return {};
- }
- },
- },
- data() {
- return {
- startX: 0,
- status: 'end',
- newValue: 0,
- distanceX: 0,
- startValue: 0,
- barStyle: {},
- sliderRect: {
- left: 0,
- width: 0
- }
- };
- },
- watch: {
- value(n) {
-
- if(this.status == 'end') this.updateValue(this.value, false);
- }
- },
- created() {
- this.updateValue(this.value, false);
- },
- mounted() {
-
- this.$uGetRect('.u-slider').then(rect => {
- this.sliderRect = rect;
- });
- },
- methods: {
- onTouchStart(event) {
- if (this.disabled) return;
- this.startX = 0;
-
- let touches = event.touches[0];
-
- this.startX = touches.clientX;
-
- this.startValue = this.format(this.value);
-
- this.status = 'start';
- },
- onTouchMove(event) {
- if (this.disabled) return;
-
-
- if (this.status == 'start') this.$emit('start');
- let touches = event.touches[0];
-
- this.distanceX = touches.clientX - this.sliderRect.left;
-
-
- this.newValue = (this.distanceX / this.sliderRect.width) * 100;
- this.status = 'moving';
-
- this.$emit('moving');
- this.updateValue(this.newValue, true);
- },
- onTouchEnd() {
- if (this.disabled) return;
- if (this.status === 'moving') {
- this.updateValue(this.newValue, false);
- this.$emit('end');
- }
- this.status = 'end';
- },
- updateValue(value, drag) {
-
- const width = this.format(value);
-
- if(width > this.max || width > 100) return;
-
- let barStyle = {
- width: width + '%'
- };
-
- if (drag == true) {
- barStyle.transition = 'none';
- } else {
-
- delete barStyle.transition;
- }
-
- this.$emit('input', width);
- this.barStyle = barStyle;
- },
- format(value) {
-
- return Math.round(Math.max(this.min, Math.min(value, this.max)) / this.step) * this.step;
- },
- onClick(event) {
- if (this.disabled) return;
-
- const value = ((event.detail.x - this.sliderRect.left) / this.sliderRect.width) * 100;
- this.updateValue(value, false);
- }
- }
- };
- </script>
- <style lang="scss" scoped>
- @import "../../libs/css/style.components.scss";
- .u-slider {
- position: relative;
- border-radius: 999px;
- border-radius: 999px;
- background-color: #ebedf0;
- }
- .u-slider:before {
- position: absolute;
- right: 0;
- left: 0;
- content: '';
- top: -8px;
- bottom: -8px;
- z-index: -1;
- }
- .u-slider__gap {
- position: relative;
- border-radius: inherit;
- transition: width 0.2s;
- transition: width 0.2s;
- background-color: #1989fa;
- }
- .u-slider__button {
- width: 24px;
- height: 24px;
- border-radius: 50%;
- box-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
- background-color: #fff;
- cursor: pointer;
- }
- .u-slider__button-wrap {
- position: absolute;
- top: 50%;
- right: 0;
- transform: translate3d(50%, -50%, 0);
- }
- .u-slider--disabled {
- opacity: 0.5;
- }
- </style>
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