88 lines
2.4 KiB
JavaScript
88 lines
2.4 KiB
JavaScript
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import { VantComponent } from '../common/component';
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import { touch } from '../mixins/touch';
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VantComponent({
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mixins: [touch],
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props: {
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disabled: Boolean,
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useButtonSlot: Boolean,
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activeColor: String,
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inactiveColor: String,
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max: {
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type: Number,
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value: 100
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},
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min: {
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type: Number,
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value: 0
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},
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step: {
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type: Number,
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value: 1
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},
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value: {
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type: Number,
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value: 0
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},
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barHeight: {
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type: String,
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value: '2px'
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}
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},
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watch: {
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value(value) {
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this.updateValue(value, false);
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}
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},
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created() {
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this.updateValue(this.data.value);
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},
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methods: {
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onTouchStart(event) {
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if (this.data.disabled)
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return;
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this.touchStart(event);
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this.startValue = this.format(this.data.value);
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},
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onTouchMove(event) {
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if (this.data.disabled)
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return;
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this.touchMove(event);
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this.getRect('.van-slider').then((rect) => {
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const diff = this.deltaX / rect.width * 100;
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this.newValue = this.startValue + diff;
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this.updateValue(this.newValue, false, true);
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});
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},
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onTouchEnd() {
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if (this.data.disabled)
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return;
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this.updateValue(this.newValue, true);
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},
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onClick(event) {
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if (this.data.disabled)
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return;
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this.getRect('.van-slider').then((rect) => {
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const value = (event.detail.x - rect.left) / rect.width * 100;
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this.updateValue(value, true);
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});
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},
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updateValue(value, end, drag) {
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value = this.format(value);
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this.set({
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value,
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barStyle: `width: ${value}%; height: ${this.data.barHeight};`
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});
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if (drag) {
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this.$emit('drag', { value });
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}
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if (end) {
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this.$emit('change', value);
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}
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},
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format(value) {
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const { max, min, step } = this.data;
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return Math.round(Math.max(min, Math.min(value, max)) / step) * step;
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}
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}
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});
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