<template>
    <view class="u-row" :style="{
            alignItems: uAlignItem,
            justifyContent: uJustify
        }"
        @tap="click"
    >
        <slot />
    </view>
</template>

<script>
    /**
     * row 行布局
     * @description 通过基础的 12 分栏,迅速简便地创建布局。
     * @tutorial https://www.uviewui.com/components/layout.html#row-props
     * @property {String Number} gutter 栅格间隔,左右各为此值的一半,单位rpx(默认0)
     * @property {String} justify 水平排列方式(微信小程序暂不支持)默认(start(或flex-start))
     * @property {String} align 垂直排列方式(默认center)
     * @example <u-row gutter="16"></u-row>
     */
    export default {
        name: "u-row",
        props: {
            // 给col添加间距,左右边距各占一半
            gutter: {
                type: [String, Number],
                default: 20
            },
            // 水平排列方式,可选值为`start`(或`flex-start`)、`end`(或`flex-end`)、`center`、`around`(或`space-around`)、`between`(或`space-between`)
            justify: {
                type: String,
                default: 'start'
            },
            // 垂直对齐方式,可选值为top、center、bottom
            align: {
                type: String,
                default: 'center'
            },
            // 是否阻止事件传播
            stop: {
                type: Boolean,
                default: true
            }
        },
        computed: {
            uJustify() {
                if (this.justify == 'end' || this.justify == 'start') return 'flex-' + this.justify;
                else if (this.justify == 'around' || this.justify == 'between') return 'space-' + this.justify;
                else return this.justify;
            },
            uAlignItem() {
                if (this.align == 'top') return 'flex-start';
                if (this.align == 'bottom') return 'flex-end';
                else return this.align;
            }
        },
        methods: {
            click(e) {
                this.$emit('click');
            }
        }
    }
</script>

<style lang="scss">
    @import "../../libs/css/style.components.scss";

    .u-row {
        // 由于微信小程序编译后奇怪的页面结构,只能使用float布局实现,flex无法实现
        /* #ifndef MP-WEIXIN || MP-QQ || MP-TOUTIAO */
        @include vue-flex;
        /* #endif */
        flex-wrap: wrap;
    }

    .u-row:after {
        /* #ifdef MP-WEIXIN || MP-QQ || MP-TOUTIAO */
        display: table;
        clear: both;
        content: "";
        /* #endif */
    }
</style>