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51 lines
1.4 KiB
51 lines
1.4 KiB
import { onMounted, ref, watch } from "vue"
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export const useTheme = () => {
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let colors = {}
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onMounted(() => {
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// getCssVariableValue return empty if called too early, refresh colors when html is mounted
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// to ensure all values are set correctly
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for (const [key, value] of Object.entries(colors)) {
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value.value = getCssVariableValue(key)
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}
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})
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const getColorTheme = (variableName) => {
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if (Object.hasOwn(colors, variableName)) {
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return colors[variableName]
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}
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const colorRef = ref(getCssVariableValue(variableName))
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watch(colorRef, (newColor) => {
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setCssVariableValue(variableName, newColor)
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})
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colors[variableName] = colorRef
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return colorRef
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}
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const getCssVariableValue = (variableName) => {
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const colorVariable = getComputedStyle(document.body).getPropertyValue(variableName).split(", ")
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return {
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r: parseInt(colorVariable[0]),
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g: parseInt(colorVariable[1]),
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b: parseInt(colorVariable[2]),
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}
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}
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const setCssVariableValue = (variableName, color) => {
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document.documentElement.style.setProperty(variableName, `${color.r}, ${color.g}, ${color.b}`)
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}
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const getColors = () => {
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let colorsPlainObject = {}
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for (const [key, value] of Object.entries(colors)) {
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colorsPlainObject[key] = `${value.value.r}, ${value.value.g}, ${value.value.b}`
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}
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return colorsPlainObject
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}
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return {
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getColorTheme,
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getColors,
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}
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}
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