// 处理主题样式
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export function handleThemeStyle(theme) {
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const isDark = typeof document !== 'undefined' && document.documentElement.classList.contains('dark')
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const primary = isDark ? softenPrimaryForDark(theme) : theme
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document.documentElement.style.setProperty('--el-color-primary', primary)
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for (let i = 1; i <= 9; i++) {
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document.documentElement.style.setProperty(`--el-color-primary-light-${i}`, `${getLightColor(primary, i / 10)}`)
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}
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for (let i = 1; i <= 9; i++) {
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document.documentElement.style.setProperty(`--el-color-primary-dark-${i}`, `${getDarkColor(primary, i / 10)}`)
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}
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}
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/** 混合两种十六进制颜色 */
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export function mixHexColors(fg, bg, t) {
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const a = hexToRgb(String(fg).replace('#', ''))
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const b = hexToRgb(String(bg).replace('#', ''))
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const out = [0, 1, 2].map((i) => Math.round(a[i] * (1 - t) + b[i] * t))
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return rgbToHex(out[0], out[1], out[2])
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}
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/** 暗色模式下柔化主题色 */
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export function softenPrimaryForDark(theme) {
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return mixHexColors(theme, '#2d3036', 0.34)
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}
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// hex颜色转rgb颜色
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export function hexToRgb(str) {
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str = str.replace('#', '')
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let hexs = str.match(/../g)
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for (let i = 0; i < 3; i++) {
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hexs[i] = parseInt(hexs[i], 16)
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}
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return hexs
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}
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// rgb颜色转Hex颜色
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export function rgbToHex(r, g, b) {
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let hexs = [r.toString(16), g.toString(16), b.toString(16)]
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for (let i = 0; i < 3; i++) {
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if (hexs[i].length == 1) {
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hexs[i] = `0${hexs[i]}`
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}
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}
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return `#${hexs.join('')}`
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}
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// 变浅颜色值
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export function getLightColor(color, level) {
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let rgb = hexToRgb(color)
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for (let i = 0; i < 3; i++) {
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rgb[i] = Math.floor((255 - rgb[i]) * level + rgb[i])
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}
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return rgbToHex(rgb[0], rgb[1], rgb[2])
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}
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// 变深颜色值
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export function getDarkColor(color, level) {
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let rgb = hexToRgb(color)
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for (let i = 0; i < 3; i++) {
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rgb[i] = Math.floor(rgb[i] * (1 - level))
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}
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return rgbToHex(rgb[0], rgb[1], rgb[2])
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}
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