Drawer.vue

<template>
    <div>
        <div :class="['mask', visible ? 'open' : 'close']" @click="close"></div>
        <div :class="['drawer', placement, visible ? 'open' : 'close']">
            <div ref="drawer" class="content beauty-scroll">
                <slot />
            </div>
            <div
                v-if="showHandler"
                :class="['handler-container', placement, visible ? 'open' : 'close']"
                ref="handler"
                @click="toggle"
            >
                <slot v-if="$slots.handler" name="handler" />
                <div v-else class="handler">
                    <a-icon :type="visible ? 'close' : 'bars'" />
                </div>
            </div>
        </div> 
    </div>
</template>

<script>
export default {
    name: 'Drawer',
    data() {
        return {};
    },
    model: {
        prop: 'visible',
        event: 'change',
    },
    props: {
        visible: {
            type: Boolean,
            required: false,
            default: false,
        },
        placement: {
            type: String,
            required: false,
            default: 'left',
        },
        showHandler: {
            type: Boolean,
            required: false,
            default: true,
        },
    },
    methods: {
        open() {
            this.$emit('change', true);
        },
        close() {
            this.$emit('change', false);
        },
        toggle() {
            this.$emit('change', !this.visible);
        },
    },
};
</script>

<style lang="less" scoped>
.mask {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    top: 0;
    background-color: @shadow-color;
    transition: all 0.5s;
    z-index: 100;
    &.open {
        display: inline-block;
    }
    &.close {
        display: none;
    }
}
.drawer {
    position: fixed;
    transition: all 0.5s;
    height: 100vh;
    z-index: 100;
    &.left {
        left: 0px;
        &.open {
            .content {
                box-shadow: 2px 0 8px @shadow-color;
            }
        }
        &.close {
            transform: translateX(-100%);
        }
    }
    &.right {
        right: 0px;
        .content {
            float: right;
        }
        &.open {
            .content {
                box-shadow: -2px 0 8px @shadow-color;
            }
        }
        &.close {
            transform: translateX(100%);
        }
    }
}
.content {
    display: inline-block;
    height: 100vh;
    overflow-y: auto;
}
.handler-container {
    position: absolute;
    display: inline-block;
    text-align: center;
    transition: all 0.5s;
    cursor: pointer;
    top: 200px;
    z-index: 100;
    .handler {
        height: 40px;
        width: 40px;
        background-color: @base-bg-color;
        font-size: 26px;
        box-shadow: 0 2px 8px @shadow-color;
        line-height: 40px;
    }
    &.left {
        right: -40px;
        .handler {
            border-radius: 0 5px 5px 0;
        }
    }
    &.right {
        left: -40px;
        .handler {
            border-radius: 5px 0 0 5px;
        }
    }
}
</style>