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A Component Library for Vue 3

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{"version":3,"file":"rate2.mjs","sources":["../../../../../../packages/components/rate/src/rate.vue"],"sourcesContent":["<template>\n <div\n :class=\"rateKls\"\n role=\"slider\"\n :aria-valuenow=\"currentValue\"\n :aria-valuetext=\"text\"\n aria-valuemin=\"0\"\n :aria-valuemax=\"max\"\n tabindex=\"0\"\n @keydown=\"handleKey\"\n >\n <span\n v-for=\"(item, key) in max\"\n :key=\"key\"\n :class=\"ns.e('item')\"\n :style=\"{ cursor: rateDisabled ? 'auto' : 'pointer' }\"\n @mousemove=\"setCurrentValue(item, $event)\"\n @mouseleave=\"resetCurrentValue\"\n @click=\"selectValue(item)\"\n >\n <el-icon\n :class=\"[ns.e('icon'), { hover: hoverIndex === item }]\"\n :style=\"getIconStyle(item)\"\n >\n <component :is=\"iconComponents[item - 1]\" />\n <el-icon\n v-if=\"showDecimalIcon(item)\"\n :style=\"decimalStyle\"\n :class=\"[ns.e('icon'), ns.e('decimal')]\"\n >\n <component :is=\"decimalIconComponent\" />\n </el-icon>\n </el-icon>\n </span>\n <span\n v-if=\"showText || showScore\"\n :class=\"ns.e('text')\"\n :style=\"{ color: textColor }\"\n >\n {{ text }}\n </span>\n </div>\n</template>\n<script lang=\"ts\">\nimport { defineComponent, inject, computed, ref, watch } from 'vue'\nimport { isObject, isArray } from '@vue/shared'\nimport { elFormKey } from '@element-plus/tokens'\nimport { hasClass } from '@element-plus/utils'\nimport { EVENT_CODE, UPDATE_MODEL_EVENT } from '@element-plus/constants'\nimport { ElIcon } from '@element-plus/components/icon'\nimport { StarFilled, Star } from '@element-plus/icons-vue'\nimport { useNamespace, useSize } from '@element-plus/hooks'\nimport { rateProps, rateEmits } from './rate'\nimport type { ElFormContext } from '@element-plus/tokens'\n\nfunction getValueFromMap<T>(\n value: number,\n map: Record<string, T | { excluded?: boolean; value: T }>\n) {\n const isExcludedObject = (\n val: unknown\n ): val is { excluded?: boolean } & Record<any, unknown> => isObject(val)\n\n const matchedKeys = Object.keys(map)\n .map((key) => +key)\n .filter((key) => {\n const val = map[key]\n const excluded = isExcludedObject(val) ? val.excluded : false\n return excluded ? value < key : value <= key\n })\n .sort((a, b) => a - b)\n const matchedValue = map[matchedKeys[0]]\n return (isExcludedObject(matchedValue) && matchedValue.value) || matchedValue\n}\n\nexport default defineComponent({\n name: 'ElRate',\n components: {\n ElIcon,\n StarFilled,\n Star,\n },\n props: rateProps,\n emits: rateEmits,\n\n setup(props, { emit }) {\n const elForm = inject(elFormKey, {} as ElFormContext)\n const rateSize = useSize()\n const ns = useNamespace('rate')\n\n const currentValue = ref(props.modelValue)\n const hoverIndex = ref(-1)\n const pointerAtLeftHalf = ref(true)\n\n const rateKls = computed(() => [ns.b(), ns.m(rateSize.value)])\n\n const rateDisabled = computed(() => props.disabled || elForm.disabled)\n const text = computed(() => {\n let result = ''\n if (props.showScore) {\n result = props.scoreTemplate.replace(\n /\\{\\s*value\\s*\\}/,\n rateDisabled.value ? `${props.modelValue}` : `${currentValue.value}`\n )\n } else if (props.showText) {\n result = props.texts[Math.ceil(currentValue.value) - 1]\n }\n return result\n })\n const valueDecimal = computed(\n () => props.modelValue * 100 - Math.floor(props.modelValue) * 100\n )\n const colorMap = computed(() =>\n isArray(props.colors)\n ? {\n [props.lowThreshold]: props.colors[0],\n [props.highThreshold]: { value: props.colors[1], excluded: true },\n [props.max]: props.colors[2],\n }\n : props.colors\n )\n const activeColor = computed(() =>\n getValueFromMap(currentValue.value, colorMap.value)\n )\n const decimalStyle = computed(() => {\n let width = ''\n if (rateDisabled.value) {\n width = `${valueDecimal.value}%`\n } else if (props.allowHalf) {\n width = '50%'\n }\n return {\n color: activeColor.value,\n width,\n }\n })\n const componentMap = computed(() =>\n isArray(props.icons)\n ? {\n [props.lowThreshold]: props.icons[0],\n [props.highThreshold]: {\n value: props.icons[1],\n excluded: true,\n },\n [props.max]: props.icons[2],\n }\n : props.icons\n )\n const decimalIconComponent = computed(() =>\n getValueFromMap(props.modelValue, componentMap.value)\n )\n const voidComponent = computed(() =>\n rateDisabled.value ? props.disabledvoidIcon : props.voidIcon\n )\n const activeComponent = computed(() =>\n getValueFromMap(currentValue.value, componentMap.value)\n )\n const iconComponents = computed(() => {\n const result = Array(props.max)\n const threshold = currentValue.value\n result.fill(activeComponent.value, 0, threshold)\n result.fill(voidComponent.value, threshold, props.max)\n return result\n })\n\n function showDecimalIcon(item: number) {\n const showWhenDisabled =\n rateDisabled.value &&\n valueDecimal.value > 0 &&\n item - 1 < props.modelValue &&\n item > props.modelValue\n const showWhenAllowHalf =\n props.allowHalf &&\n pointerAtLeftHalf.value &&\n item - 0.5 <= currentValue.value &&\n item > currentValue.value\n return showWhenDisabled || showWhenAllowHalf\n }\n\n function getIconStyle(item: number) {\n const voidColor = rateDisabled.value\n ? props.disabledVoidColor\n : props.voidColor\n return {\n color: item <= currentValue.value ? activeColor.value : voidColor,\n }\n }\n\n function selectValue(value: number) {\n if (rateDisabled.value) {\n return\n }\n if (props.allowHalf && pointerAtLeftHalf.value) {\n emit(UPDATE_MODEL_EVENT, currentValue.value)\n if (props.modelValue !== currentValue.value) {\n emit('change', currentValue.value)\n }\n } else {\n emit(UPDATE_MODEL_EVENT, value)\n if (props.modelValue !== value) {\n emit('change', value)\n }\n }\n }\n\n function handleKey(e: KeyboardEvent) {\n if (rateDisabled.value) {\n return\n }\n let _currentValue = currentValue.value\n const code = e.code\n if (code === EVENT_CODE.up || code === EVENT_CODE.right) {\n if (props.allowHalf) {\n _currentValue += 0.5\n } else {\n _currentValue += 1\n }\n e.stopPropagation()\n e.preventDefault()\n } else if (code === EVENT_CODE.left || code === EVENT_CODE.down) {\n if (props.allowHalf) {\n _currentValue -= 0.5\n } else {\n _currentValue -= 1\n }\n e.stopPropagation()\n e.preventDefault()\n }\n _currentValue = _currentValue < 0 ? 0 : _currentValue\n _currentValue = _currentValue > props.max ? props.max : _currentValue\n emit(UPDATE_MODEL_EVENT, _currentValue)\n emit('change', _currentValue)\n return _currentValue\n }\n\n function setCurrentValue(value: number, event: MouseEvent) {\n if (rateDisabled.value) {\n return\n }\n if (props.allowHalf) {\n // TODO: use cache via computed https://github.com/element-plus/element-plus/pull/5456#discussion_r786472092\n let target = event.target as HTMLElement\n if (hasClass(target, ns.e('item'))) {\n target = target.querySelector(`.${ns.e('icon')}`)!\n }\n if (target.clientWidth === 0 || hasClass(target, ns.e('decimal'))) {\n target = target.parentNode as HTMLElement\n }\n pointerAtLeftHalf.value = event.offsetX * 2 <= target.clientWidth\n currentValue.value = pointerAtLeftHalf.value ? value - 0.5 : value\n } else {\n currentValue.value = value\n }\n hoverIndex.value = value\n }\n\n function resetCurrentValue() {\n if (rateDisabled.value) {\n return\n }\n if (props.allowHalf) {\n pointerAtLeftHalf.value =\n props.modelValue !== Math.floor(props.modelValue)\n }\n currentValue.value = props.modelValue\n hoverIndex.value = -1\n }\n\n watch(\n () => props.modelValue,\n (val) => 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