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| 1 | +<template> |
| 2 | + <Drawer ref="drawerWrapper" |
| 3 | + :value="value" |
| 4 | + @input="handleInput" |
| 5 | + :width="width" |
| 6 | + :class-name="outerClasses" |
| 7 | + v-bind="$attrs" |
| 8 | + v-on="$listeners"> |
| 9 | + <!-- 所有插槽内容显示在这里 ↓ --> |
| 10 | + |
| 11 | + <template v-for="(slots, slotsName) in $slots"> |
| 12 | + <template v-if="slotsName !== 'default'"> |
| 13 | + <render-dom v-for="(render, index) in slots" |
| 14 | + :key="`b_drawer_${slotsName}_${index}`" |
| 15 | + :render="() => render" |
| 16 | + :slot="slotsName"> |
| 17 | + </render-dom> |
| 18 | + </template> |
| 19 | + <template v-else> |
| 20 | + <div :class="`${prefix}-body-wrapper`" |
| 21 | + :key="`b_drawer_${slotsName}`"> |
| 22 | + <render-dom v-for="(render, index) in slots" |
| 23 | + :key="`b_drawer_${slotsName}_${index}`" |
| 24 | + :render="() => render" |
| 25 | + :slot="slotsName"> |
| 26 | + </render-dom> |
| 27 | + </div> |
| 28 | + </template> |
| 29 | + </template> |
| 30 | + <!-- 所有插槽内容显示在这里 ↑ --> |
| 31 | + <div v-if="draggable" |
| 32 | + :style="triggerStyle" |
| 33 | + :class="`${prefix}-trigger-wrapper`" |
| 34 | + @mousedown="handleTriggerMousedown"> |
| 35 | + <slot name="trigger"> |
| 36 | + <drag-drawer-trigger></drag-drawer-trigger> |
| 37 | + </slot> |
| 38 | + </div> |
| 39 | + <div v-if="$slots.footer" |
| 40 | + :class="`${prefix}-footer`"> |
| 41 | + <slot name="footer"></slot> |
| 42 | + </div> |
| 43 | + </Drawer> |
| 44 | +</template> |
| 45 | + |
| 46 | +<script> |
| 47 | +import RenderDom from '@/libs/render-dom' |
| 48 | +import DragDrawerTrigger from './drag-drawer-trigger.vue' |
| 49 | +import Mixin from './mixin' |
| 50 | +import { on, off } from '@/libs/tools' |
| 51 | +import './index.less' |
| 52 | +export default { |
| 53 | + name: 'BDrawer', |
| 54 | + components: { |
| 55 | + RenderDom, |
| 56 | + DragDrawerTrigger |
| 57 | + }, |
| 58 | + mixins: [Mixin], |
| 59 | + props: { |
| 60 | + value: { |
| 61 | + type: Boolean, |
| 62 | + default: false |
| 63 | + }, |
| 64 | + width: { |
| 65 | + type: [String, Number], |
| 66 | + default: 256 |
| 67 | + }, |
| 68 | + // 是否可拖动修改宽度 |
| 69 | + draggable: { |
| 70 | + type: Boolean, |
| 71 | + default: false |
| 72 | + }, |
| 73 | + // 最小拖动宽度 |
| 74 | + minWidth: { |
| 75 | + type: [String, Number], |
| 76 | + default: 256 |
| 77 | + } |
| 78 | + }, |
| 79 | + data () { |
| 80 | + return { |
| 81 | + canMove: false, |
| 82 | + wrapperWidth: 0, |
| 83 | + wrapperLeft: 0 |
| 84 | + } |
| 85 | + }, |
| 86 | + computed: { |
| 87 | + outerClasses () { |
| 88 | + const classesArray = [ |
| 89 | + `${this.prefix}-wrapper`, |
| 90 | + this.canMove ? 'no-select pointer-events-none' : '' |
| 91 | + ] |
| 92 | + return classesArray.join(' ') |
| 93 | + }, |
| 94 | + placement () { |
| 95 | + return this.$attrs.placement |
| 96 | + }, |
| 97 | + innerWidth () { |
| 98 | + const width = this.width |
| 99 | + return width <= 100 ? (this.wrapperWidth * width) / 100 : width |
| 100 | + }, |
| 101 | + triggerStyle () { |
| 102 | + return { |
| 103 | + [this.placement]: `${this.innerWidth}px`, |
| 104 | + position: this.$attrs.inner ? 'absolute' : 'fixed' |
| 105 | + } |
| 106 | + } |
| 107 | + }, |
| 108 | + methods: { |
| 109 | + handleInput (status) { |
| 110 | + this.$emit('input', status) |
| 111 | + }, |
| 112 | + handleTriggerMousedown (event) { |
| 113 | + this.canMove = true |
| 114 | + this.$emit('on-resize-start') |
| 115 | + // 防止鼠标选中抽屉中文字，造成拖动trigger触发浏览器原生拖动行为 |
| 116 | + window.getSelection().removeAllRanges() |
| 117 | + }, |
| 118 | + handleMousemove (event) { |
| 119 | + if (!this.canMove) return |
| 120 | + // 更新容器宽度和距离左侧页面距离，如果是window则距左侧距离为0 |
| 121 | + this.setWrapperWidth() |
| 122 | + const left = event.pageX - this.wrapperLeft |
| 123 | + // 如果抽屉方向为右边，宽度计算需用容器宽度减去left |
| 124 | + let width = this.placement === 'right' ? this.wrapperWidth - left : left |
| 125 | + // 限定做小宽度 |
| 126 | + width = Math.max(width, parseFloat(this.minWidth)) |
| 127 | + event.atMin = width === parseFloat(this.minWidth) |
| 128 | + // 如果当前width不大于100，视为百分比 |
| 129 | + if (width <= 100) width = (width / this.wrapperWidth) * 100 |
| 130 | + this.$emit('update:width', parseInt(width)) |
| 131 | + this.$emit('on-resize', event) |
| 132 | + }, |
| 133 | + handleMouseup (event) { |
| 134 | + this.canMove = false |
| 135 | + this.$emit('on-resize-end') |
| 136 | + }, |
| 137 | + setWrapperWidth () { |
| 138 | + const { |
| 139 | + width, |
| 140 | + left |
| 141 | + } = this.$refs.drawerWrapper.$el.getBoundingClientRect() |
| 142 | + this.wrapperWidth = width |
| 143 | + this.wrapperLeft = left |
| 144 | + } |
| 145 | + }, |
| 146 | + mounted () { |
| 147 | + on(document, 'mousemove', this.handleMousemove) |
| 148 | + on(document, 'mouseup', this.handleMouseup) |
| 149 | + this.setWrapperWidth() |
| 150 | + }, |
| 151 | + beforeDestroy () { |
| 152 | + off(document, 'mousemove', this.handleMousemove) |
| 153 | + off(document, 'mouseup', this.handleMouseup) |
| 154 | + } |
| 155 | +} |
| 156 | +</script> |
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