298 lines
10 KiB
JavaScript
298 lines
10 KiB
JavaScript
import { hyphenate, capitalize } from '@vue/shared';
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function createDecl(prop, value, important, raws, source) {
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const decl = {
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type: 'decl',
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prop,
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value: value.toString(),
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raws,
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source,
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};
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if (important) {
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decl.important = true;
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}
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return decl;
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}
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const backgroundColor = 'backgroundColor';
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const backgroundImage = 'backgroundImage';
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function createTransformBackground(options) {
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return (decl) => {
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const { value, important, raws, source } = decl;
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// nvue 平台维持原有逻辑不变
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const isUvuePlatform = options.type === 'uvue';
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if (isUvuePlatform) {
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if (/^#?\S+$/.test(value) || /^rgba?(.+)$/.test(value)) {
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return [
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createDecl(backgroundImage, 'none', important, raws, source),
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createDecl(backgroundColor, value, important, raws, source),
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];
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}
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else if (/^linear-gradient(.+)$/.test(value)) {
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return [
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createDecl(backgroundImage, value, important, raws, source),
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createDecl(backgroundColor, 'transparent', important, raws, source),
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];
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}
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else if (value == '') {
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return [
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createDecl(backgroundImage, 'none', important, raws, source),
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createDecl(backgroundColor, 'transparent', important, raws, source),
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];
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}
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return [decl];
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}
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else {
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if (/^#?\S+$/.test(value) || /^rgba?(.+)$/.test(value)) {
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return [createDecl(backgroundColor, value, important, raws, source)];
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}
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else if (/^linear-gradient(.+)$/.test(value)) {
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return [createDecl(backgroundImage, value, important, raws, source)];
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}
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else if (value == '') {
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return [decl];
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}
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return [decl];
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}
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};
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}
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const borderWidth = 'Width';
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const borderStyle = 'Style';
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const borderColor = 'Color';
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function createTransformBorder(options) {
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return (decl) => {
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const { prop, value, important, raws, source } = decl;
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const splitResult = value.replace(/\s*,\s*/g, ',').split(/\s+/);
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const result = [
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/^[\d\.]+\S*|^(thin|medium|thick)$/,
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/^(solid|dashed|dotted|none)$/,
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/\S+/,
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].map((item) => {
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const index = splitResult.findIndex((str) => item.test(str));
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return index < 0 ? null : splitResult.splice(index, 1)[0];
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});
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const isUvuePlatform = options.type === 'uvue';
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if (isUvuePlatform) {
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if (splitResult.length > 0 && value !== '') {
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return [decl];
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}
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}
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else {
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// nvue 维持不变
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if (splitResult.length > 0) {
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return [decl];
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}
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}
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return [
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createDecl(prop + borderWidth, (result[0] || (options.type === 'uvue' ? 'medium' : '0')).trim(), important, raws, source),
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createDecl(prop + borderStyle, (result[1] || (options.type === 'uvue' ? 'none' : 'solid')).trim(), important, raws, source),
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createDecl(prop + borderColor, (result[2] || '#000000').trim(), important, raws, source),
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];
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};
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}
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const borderTop = 'borderTop';
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const borderRight = 'borderRight';
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const borderBottom = 'borderBottom';
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const borderLeft = 'borderLeft';
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const transformBorderColor = (decl) => {
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const { prop, value, important, raws, source } = decl;
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let property = hyphenate(prop).split('-')[1];
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{
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property = capitalize(property);
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}
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const splitResult = value.replace(/\s*,\s*/g, ',').split(/\s+/);
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switch (splitResult.length) {
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case 1:
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return [decl];
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case 2:
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splitResult.push(splitResult[0], splitResult[1]);
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break;
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case 3:
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splitResult.push(splitResult[1]);
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break;
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}
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return [
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createDecl(borderTop + property, splitResult[0], important, raws, source),
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createDecl(borderRight + property, splitResult[1], important, raws, source),
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createDecl(borderBottom + property, splitResult[2], important, raws, source),
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createDecl(borderLeft + property, splitResult[3], important, raws, source),
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];
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};
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const borderTopLeftRadius = 'borderTopLeftRadius';
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const borderTopRightRadius = 'borderTopRightRadius';
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const borderBottomRightRadius = 'borderBottomRightRadius';
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const borderBottomLeftRadius = 'borderBottomLeftRadius';
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const transformBorderRadius = (decl) => {
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const { value, important, raws, source } = decl;
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const splitResult = value.split(/\s+/);
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if (value.includes('/')) {
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return [decl];
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}
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switch (splitResult.length) {
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case 1:
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return [decl];
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case 2:
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splitResult.push(splitResult[0], splitResult[1]);
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break;
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case 3:
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splitResult.push(splitResult[1]);
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break;
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}
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return [
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createDecl(borderTopLeftRadius, splitResult[0], important, raws, source),
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createDecl(borderTopRightRadius, splitResult[1], important, raws, source),
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createDecl(borderBottomRightRadius, splitResult[2], important, raws, source),
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createDecl(borderBottomLeftRadius, splitResult[3], important, raws, source),
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];
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};
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const transformBorderStyle = transformBorderColor;
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const transformBorderWidth = transformBorderColor;
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const flexDirection = 'flexDirection';
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const flexWrap = 'flexWrap';
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const transformFlexFlow = (decl) => {
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const { value, important, raws, source } = decl;
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const splitResult = value.split(/\s+/);
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const result = [
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/^(column|column-reverse|row|row-reverse)$/,
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/^(nowrap|wrap|wrap-reverse)$/,
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].map((item) => {
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const index = splitResult.findIndex((str) => item.test(str));
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return index < 0 ? null : splitResult.splice(index, 1)[0];
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});
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if (splitResult.length) {
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return [decl];
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}
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return [
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createDecl(flexDirection, result[0] || 'column', important, raws, source),
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createDecl(flexWrap, result[1] || 'nowrap', important, raws, source),
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];
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};
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const top = 'Top';
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const right = 'Right';
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const bottom = 'Bottom';
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const left = 'Left';
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const createTransformBox = (type) => {
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return (decl) => {
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const { value, important, raws, source } = decl;
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const splitResult = value.split(/\s+/);
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switch (splitResult.length) {
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case 1:
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splitResult.push(splitResult[0], splitResult[0], splitResult[0]);
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break;
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case 2:
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splitResult.push(splitResult[0], splitResult[1]);
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break;
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case 3:
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splitResult.push(splitResult[1]);
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break;
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}
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return [
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createDecl(type + top, splitResult[0], important, raws, source),
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createDecl(type + right, splitResult[1], important, raws, source),
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createDecl(type + bottom, splitResult[2], important, raws, source),
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createDecl(type + left, splitResult[3], important, raws, source),
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];
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};
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};
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const transformMargin = createTransformBox('margin');
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const transformPadding = createTransformBox('padding');
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const transitionProperty = 'transitionProperty';
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const transitionDuration = 'transitionDuration';
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const transitionTimingFunction = 'transitionTimingFunction';
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const transitionDelay = 'transitionDelay';
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const transformTransition = (decl) => {
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const { value, important, raws, source } = decl;
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const result = [];
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let match;
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// 针对 cubic-bezier 特殊处理
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// eg: cubic-bezier(0.42, 0, 1.0, 3) // (0.2,-2,0.8,2)
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if (decl.value.includes('cubic-bezier')) {
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const CHUNK_REGEXP = /^(\S*)?\s*(\d*\.?\d+(?:ms|s)?)?\s*((\S*)|cubic-bezier\(.*\))?\s*(\d*\.?\d+(?:ms|s)?)?$/;
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match = value.match(CHUNK_REGEXP);
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}
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else {
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const CHUNK_REGEXP = /^(\S*)?\s*(\d*\.?\d+(?:ms|s)?)?\s*(\S*)?\s*(\d*\.?\d+(?:ms|s)?)?$/;
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match = value.match(CHUNK_REGEXP);
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}
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if (!match) {
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return result;
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}
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match[1] &&
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result.push(createDecl(transitionProperty, match[1], important, raws, source));
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match[2] &&
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result.push(createDecl(transitionDuration, match[2], important, raws, source));
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match[3] &&
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result.push(createDecl(transitionTimingFunction, match[3], important, raws, source));
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match[4] &&
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result.push(createDecl(transitionDelay, match[4], important, raws, source));
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return result;
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};
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function getDeclTransforms(options) {
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const transformBorder = createTransformBorder(options);
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const styleMap = {
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transition: transformTransition,
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border: transformBorder,
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background: createTransformBackground(options),
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borderTop: transformBorder,
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borderRight: transformBorder,
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borderBottom: transformBorder,
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borderLeft: transformBorder,
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borderStyle: transformBorderStyle,
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borderWidth: transformBorderWidth,
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borderColor: transformBorderColor,
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borderRadius: transformBorderRadius,
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// uvue已经支持这些简写属性，不需要展开
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// margin,padding继续展开，确保样式的优先级
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margin: transformMargin,
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padding: transformPadding,
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/* eslint-disable no-restricted-syntax */
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...(options.type !== 'uvue'
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? {
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flexFlow: transformFlexFlow,
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}
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: {}),
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};
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let result = {};
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{
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result = styleMap;
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}
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return result;
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}
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let DeclTransforms;
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const expanded = Symbol('expanded');
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function expand(options) {
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const plugin = {
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postcssPlugin: `${options.type || 'nvue'}:expand`,
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Declaration(decl) {
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if (decl[expanded]) {
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return;
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}
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if (!DeclTransforms) {
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DeclTransforms = getDeclTransforms(options);
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}
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const transform = DeclTransforms[decl.prop];
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if (transform) {
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const res = transform(decl);
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const isSame = res.length === 1 && res[0] === decl;
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if (!isSame) {
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decl.replaceWith(res);
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}
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}
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decl[expanded] = true;
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},
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};
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return plugin;
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}
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export { expand };
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