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71 lines
2.1 KiB
71 lines
2.1 KiB
3 years ago
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var path = require('path')
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var styler = require('weex-styler')
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var {
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normalizePath
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} = require('@dcloudio/uni-cli-shared')
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module.exports = function (content, map) {
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this.cacheable && this.cacheable()
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this.callback(null, 'module.exports = ' + genStyleString(content.replace(/!important/g, ''), this), map)
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}
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// @todo:
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// font-relative lengths: em, ex, ch, ic
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// viewport-relative lengths: vi, vb
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// https://drafts.csswg.org/css-values/#lengths
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var REGEXP_LENGTH = /^([-+]?[0-9]*\.?[0-9]+)(rem|vw|vh|vmin|vmax|cm|mm|q|in|pt|pc|px)$/
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function convertLength (k, v) {
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if (typeof v !== 'string') {
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return v
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}
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var result = v.match(REGEXP_LENGTH)
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if (result) {
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if (result[2] === 'px') {
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return result[1]
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}
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return result[1] + 'CSS_UNIT_' + result[2].toUpperCase()
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}
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return v
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}
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let isFirst = true
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function genStyleString (input, loader) {
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var output = '{}'
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var resourcePath = normalizePath(path.relative(process.env.UNI_INPUT_DIR, loader.resourcePath))
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styler.parse(input, function (err, obj) {
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if (err) {
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loader.emitError(err)
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return
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}
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if (obj && obj.jsonStyle) {
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if (obj.log) {
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var msgs = []
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obj.log.map((log) => {
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if (log.reason.indexOf('NOTE:') !== 0) { // 仅显示警告，错误信息
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if (log.selectors) {
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msgs.push(`${log.selectors}: ${log.reason} at ${resourcePath}:${log.line}`)
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} else {
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msgs.push(`${log.reason} at ${resourcePath}:${log.line}`)
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}
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}
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})
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if (msgs.length) {
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if (isFirst) {
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msgs.unshift(
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'nvue中不支持如下css。如全局或公共样式受影响，建议将告警样式写在ifndef APP-PLUS-NVUE的条件编译中，详情如下：'
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)
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isFirst = false
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}
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msgs.forEach(msg => console.warn(msg))
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}
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}
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try {
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output = JSON.stringify(obj.jsonStyle, convertLength, 2)
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.replace(/"([-+]?[0-9]*\.?[0-9]+)CSS_UNIT_([A-Z]+)"/g, '$1 * CSS_UNIT.$2')
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} catch (e) {}
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}
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})
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return output
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}
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