vant

2019-12-14 09:20:48 +08:00
parent 57e95e3217
commit 933673b092
372 changed files with 8090 additions and 0 deletions
--- a/utils/dist/slider/index.js
+++ b/utils/dist/slider/index.js
@@ -0,0 +1,107 @@
+import { VantComponent } from '../common/component';
+import { touch } from '../mixins/touch';
+import { addUnit } from '../common/utils';
+VantComponent({
+    mixins: [touch],
+    props: {
+        disabled: Boolean,
+        useButtonSlot: Boolean,
+        activeColor: String,
+        inactiveColor: String,
+        max: {
+            type: Number,
+            value: 100
+        },
+        min: {
+            type: Number,
+            value: 0
+        },
+        step: {
+            type: Number,
+            value: 1
+        },
+        value: {
+            type: Number,
+            value: 0
+        },
+        barHeight: {
+            type: null,
+            value: '2px'
+        }
+    },
+    watch: {
+        value(value) {
+            this.updateValue(value, false);
+        }
+    },
+    created() {
+        this.updateValue(this.data.value);
+    },
+    methods: {
+        onTouchStart(event) {
+            if (this.data.disabled)
+                return;
+            this.touchStart(event);
+            this.startValue = this.format(this.data.value);
+            this.dragStatus = 'start';
+        },
+        onTouchMove(event) {
+            if (this.data.disabled)
+                return;
+            if (this.dragStatus === 'start') {
+                this.$emit('drag-start');
+            }
+            this.touchMove(event);
+            this.dragStatus = 'draging';
+            this.getRect('.van-slider').then((rect) => {
+                const diff = this.deltaX / rect.width * 100;
+                this.newValue = this.startValue + diff;
+                this.updateValue(this.newValue, false, true);
+            });
+        },
+        onTouchEnd() {
+            if (this.data.disabled)
+                return;
+            if (this.dragStatus === 'draging') {
+                this.updateValue(this.newValue, true);
+                this.$emit('drag-end');
+            }
+        },
+        onClick(event) {
+            if (this.data.disabled)
+                return;
+            const { min } = this.data;
+            this.getRect('.van-slider').then((rect) => {
+                const value = (event.detail.x - rect.left) / rect.width * this.getRange() + min;
+                this.updateValue(value, true);
+            });
+        },
+        updateValue(value, end, drag) {
+            value = this.format(value);
+            const { barHeight, min } = this.data;
+            const width = `${((value - min) * 100) / this.getRange()}%`;
+            this.setData({
+                value,
+                barStyle: `
+          width: ${width};
+          height: ${addUnit(barHeight)};
+          ${drag ? 'transition: none;' : ''}
+        `,
+            });
+            if (drag) {
+                this.$emit('drag', { value });
+            }
+            if (end) {
+                this.$emit('change', value);
+            }
+        },
+        getRange() {
+            const { max, min } = this.data;
+            return max - min;
+        },
+        format(value) {
+            const { max, min, step } = this.data;
+            return Math.round(Math.max(min, Math.min(value, max)) / step) * step;
+        }
+    }
+});