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317 lines
7.5 KiB
317 lines
7.5 KiB
<template> |
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<!-- #ifndef APP-NVUE --> |
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<view :class="['uni-col', sizeClass, pointClassList]" :style="{ |
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paddingLeft:`${Number(gutter)}rpx`, |
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paddingRight:`${Number(gutter)}rpx`, |
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}"> |
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<slot></slot> |
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</view> |
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<!-- #endif --> |
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<!-- #ifdef APP-NVUE --> |
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<!-- 在nvue上，类名样式不生效，换为style --> |
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<!-- 设置right正值失效，设置 left 负值 --> |
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<view :class="['uni-col']" :style="{ |
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paddingLeft:`${Number(gutter)}rpx`, |
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paddingRight:`${Number(gutter)}rpx`, |
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width:`${nvueWidth}rpx`, |
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position:'relative', |
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marginLeft:`${marginLeft}rpx`, |
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left:`${right === 0 ? left : -right}rpx` |
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}"> |
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<slot></slot> |
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</view> |
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<!-- #endif --> |
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</template> |
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<script> |
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/** |
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* Col 布局-列 |
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* @description 搭配uni-row使用，构建布局。 |
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* @tutorial https://ext.dcloud.net.cn/plugin?id=3958 |
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* |
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* @property {span} type = Number 栅格占据的列数 |
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* 默认 24 |
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* @property {offset} type = Number 栅格左侧的间隔格数 |
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* @property {push} type = Number 栅格向右移动格数 |
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* @property {pull} type = Number 栅格向左移动格数 |
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* @property {xs} type = [Number, Object] <768px 响应式栅格数或者栅格属性对象 |
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* @description Number时表示在此屏幕宽度下，栅格占据的列数。Object时可配置多个描述{span: 4, offset: 4} |
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* @property {sm} type = [Number, Object] ≥768px 响应式栅格数或者栅格属性对象 |
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* @description Number时表示在此屏幕宽度下，栅格占据的列数。Object时可配置多个描述{span: 4, offset: 4} |
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* @property {md} type = [Number, Object] ≥992px 响应式栅格数或者栅格属性对象 |
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* @description Number时表示在此屏幕宽度下，栅格占据的列数。Object时可配置多个描述{span: 4, offset: 4} |
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* @property {lg} type = [Number, Object] ≥1200px 响应式栅格数或者栅格属性对象 |
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* @description Number时表示在此屏幕宽度下，栅格占据的列数。Object时可配置多个描述{span: 4, offset: 4} |
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* @property {xl} type = [Number, Object] ≥1920px 响应式栅格数或者栅格属性对象 |
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* @description Number时表示在此屏幕宽度下，栅格占据的列数。Object时可配置多个描述{span: 4, offset: 4} |
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*/ |
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const ComponentClass = 'uni-col'; |
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|
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// -1 默认值，因为在微信小程序端只给Number会有默认值0 |
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export default { |
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name: 'uniCol', |
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// #ifdef MP-WEIXIN |
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options: { |
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virtualHost: true // 在微信小程序中将组件节点渲染为虚拟节点，更加接近Vue组件的表现 |
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}, |
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// #endif |
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props: { |
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span: { |
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type: Number, |
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default: 24 |
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}, |
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offset: { |
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type: Number, |
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default: -1 |
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}, |
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pull: { |
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type: Number, |
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default: -1 |
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}, |
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push: { |
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type: Number, |
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default: -1 |
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}, |
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xs: [Number, Object], |
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sm: [Number, Object], |
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md: [Number, Object], |
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lg: [Number, Object], |
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xl: [Number, Object] |
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}, |
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data() { |
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return { |
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gutter: 0, |
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sizeClass: '', |
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parentWidth: 0, |
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nvueWidth: 0, |
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marginLeft: 0, |
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right: 0, |
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left: 0 |
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} |
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}, |
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created() { |
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// 字节小程序中，在computed中读取$parent为undefined |
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let parent = this.$parent; |
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|
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while (parent && parent.$options.componentName !== 'uniRow') { |
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parent = parent.$parent; |
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} |
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|
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this.updateGutter(parent.gutter) |
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parent.$watch('gutter', (gutter) => { |
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this.updateGutter(gutter) |
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}) |
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|
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// #ifdef APP-NVUE |
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this.updateNvueWidth(parent.width) |
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parent.$watch('width', (width) => { |
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this.updateNvueWidth(width) |
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}) |
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// #endif |
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}, |
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computed: { |
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sizeList() { |
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let { |
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span, |
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offset, |
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pull, |
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push |
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} = this; |
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|
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return { |
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span, |
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offset, |
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pull, |
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push |
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} |
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}, |
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// #ifndef APP-NVUE |
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pointClassList() { |
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let classList = []; |
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|
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['xs', 'sm', 'md', 'lg', 'xl'].forEach(point => { |
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const props = this[point]; |
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if (typeof props === 'number') { |
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classList.push(`${ComponentClass}-${point}-${props}`) |
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} else if (typeof props === 'object' && props) { |
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Object.keys(props).forEach(pointProp => { |
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classList.push( |
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pointProp === 'span' ? |
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`${ComponentClass}-${point}-${props[pointProp]}` : |
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`${ComponentClass}-${point}-${pointProp}-${props[pointProp]}` |
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) |
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}) |
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} |
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}); |
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// 支付宝小程序使用 :class=[ ['a','b'] ]，渲染错误 |
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return classList.join(' '); |
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} |
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// #endif |
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}, |
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methods: { |
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updateGutter(parentGutter) { |
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parentGutter = Number(parentGutter); |
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if (!isNaN(parentGutter)) { |
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this.gutter = parentGutter / 2 |
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} |
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}, |
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// #ifdef APP-NVUE |
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updateNvueWidth(width) { |
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// 用于在nvue端，span，offset，pull，push的计算 |
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this.parentWidth = width; |
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['span', 'offset', 'pull', 'push'].forEach(size => { |
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const curSize = this[size]; |
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if ((curSize || curSize === 0) && curSize !== -1) { |
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let RPX = 1 / 24 * curSize * width |
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RPX = Number(RPX); |
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switch (size) { |
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case 'span': |
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this.nvueWidth = RPX |
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break; |
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case 'offset': |
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this.marginLeft = RPX |
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break; |
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case 'pull': |
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this.right = RPX |
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break; |
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case 'push': |
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this.left = RPX |
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break; |
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} |
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} |
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}); |
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} |
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// #endif |
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}, |
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watch: { |
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sizeList: { |
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immediate: true, |
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handler(newVal) { |
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// #ifndef APP-NVUE |
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let classList = []; |
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for (let size in newVal) { |
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const curSize = newVal[size]; |
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if ((curSize || curSize === 0) && curSize !== -1) { |
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classList.push( |
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size === 'span' ? |
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`${ComponentClass}-${curSize}` : |
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`${ComponentClass}-${size}-${curSize}` |
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) |
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} |
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} |
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// 支付宝小程序使用 :class=[ ['a','b'] ]，渲染错误 |
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this.sizeClass = classList.join(' '); |
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// #endif |
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// #ifdef APP-NVUE |
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this.updateNvueWidth(this.parentWidth); |
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// #endif |
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} |
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} |
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} |
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} |
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</script> |
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<style lang='scss' > |
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/* breakpoints */ |
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$--sm: 768px !default; |
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$--md: 992px !default; |
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$--lg: 1200px !default; |
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$--xl: 1920px !default; |
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$breakpoints: ('xs' : (max-width: $--sm - 1), |
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'sm' : (min-width: $--sm), |
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'md' : (min-width: $--md), |
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'lg' : (min-width: $--lg), |
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'xl' : (min-width: $--xl)); |
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$layout-namespace: ".uni-"; |
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$col: $layout-namespace+"col"; |
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@function getSize($size) { |
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/* TODO 1/24 * $size * 100 * 1%; 使用计算后的值，为了解决 vue3 控制台报错 */ |
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@return 0.04166666666 * $size * 100 * 1%; |
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} |
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@mixin res($key, $map:$breakpoints) { |
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@if map-has-key($map, $key) { |
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@media screen and #{inspect(map-get($map,$key))} { |
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@content; |
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} |
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} |
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@else { |
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@warn "Undeinfed point: `#{$key}`"; |
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} |
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} |
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/* #ifndef APP-NVUE */ |
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#{$col} { |
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float: left; |
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box-sizing: border-box; |
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} |
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#{$col}-0 { |
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/* #ifdef APP-NVUE */ |
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width: 0; |
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height: 0; |
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margin-top: 0; |
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margin-right: 0; |
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margin-bottom: 0; |
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margin-left: 0; |
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/* #endif */ |
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/* #ifndef APP-NVUE */ |
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display: none; |
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/* #endif */ |
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} |
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@for $i from 0 through 24 { |
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#{$col}-#{$i} { |
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width: getSize($i); |
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} |
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#{$col}-offset-#{$i} { |
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margin-left: getSize($i); |
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} |
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#{$col}-pull-#{$i} { |
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position: relative; |
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right: getSize($i); |
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} |
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#{$col}-push-#{$i} { |
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position: relative; |
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left: getSize($i); |
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} |
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} |
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@each $point in map-keys($breakpoints) { |
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@include res($point) { |
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#{$col}-#{$point}-0 { |
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display: none; |
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} |
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@for $i from 0 through 24 { |
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#{$col}-#{$point}-#{$i} { |
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width: getSize($i); |
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} |
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#{$col}-#{$point}-offset-#{$i} { |
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margin-left: getSize($i); |
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} |
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#{$col}-#{$point}-pull-#{$i} { |
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position: relative; |
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right: getSize($i); |
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} |
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#{$col}-#{$point}-push-#{$i} { |
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position: relative; |
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left: getSize($i); |
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} |
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} |
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} |
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} |
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/* #endif */ |
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</style>
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