225 lines
6.5 KiB
JavaScript
225 lines
6.5 KiB
JavaScript
import { computed, defineComponent, ref, createVNode as _createVNode } from "vue";
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import { addUnit, truthProp, numericProp, preventDefault, makeStringProp, makeNumberProp, makeNumericProp, createNamespace } from "../utils/index.mjs";
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import { useRect, useCustomFieldValue, useEventListener } from "@vant/use";
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import { useRefs } from "../composables/use-refs.mjs";
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import { useTouch } from "../composables/use-touch.mjs";
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import { Icon } from "../icon/index.mjs";
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const [name, bem] = createNamespace("rate");
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function getRateStatus(value, index, allowHalf, readonly) {
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if (value >= index) {
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return {
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status: "full",
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value: 1
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};
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}
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if (value + 0.5 >= index && allowHalf && !readonly) {
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return {
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status: "half",
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value: 0.5
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};
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}
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if (value + 1 >= index && allowHalf && readonly) {
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const cardinal = 10 ** 10;
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return {
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status: "half",
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value: Math.round((value - index + 1) * cardinal) / cardinal
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};
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}
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return {
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status: "void",
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value: 0
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};
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}
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const rateProps = {
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size: numericProp,
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icon: makeStringProp("star"),
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color: String,
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count: makeNumericProp(5),
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gutter: numericProp,
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clearable: Boolean,
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readonly: Boolean,
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disabled: Boolean,
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voidIcon: makeStringProp("star-o"),
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allowHalf: Boolean,
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voidColor: String,
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touchable: truthProp,
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iconPrefix: String,
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modelValue: makeNumberProp(0),
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disabledColor: String
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};
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var stdin_default = defineComponent({
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name,
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props: rateProps,
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emits: ["change", "update:modelValue"],
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setup(props, {
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emit
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}) {
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const touch = useTouch();
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const [itemRefs, setItemRefs] = useRefs();
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const groupRef = ref();
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const unselectable = computed(() => props.readonly || props.disabled);
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const untouchable = computed(() => unselectable.value || !props.touchable);
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const list = computed(() => Array(+props.count).fill("").map((_, i) => getRateStatus(props.modelValue, i + 1, props.allowHalf, props.readonly)));
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let ranges;
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let groupRefRect;
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let minRectTop = Number.MAX_SAFE_INTEGER;
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let maxRectTop = Number.MIN_SAFE_INTEGER;
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const updateRanges = () => {
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groupRefRect = useRect(groupRef);
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const rects = itemRefs.value.map(useRect);
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ranges = [];
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rects.forEach((rect, index) => {
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minRectTop = Math.min(rect.top, minRectTop);
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maxRectTop = Math.max(rect.top, maxRectTop);
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if (props.allowHalf) {
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ranges.push({
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score: index + 0.5,
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left: rect.left,
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top: rect.top,
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height: rect.height
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}, {
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score: index + 1,
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left: rect.left + rect.width / 2,
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top: rect.top,
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height: rect.height
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});
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} else {
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ranges.push({
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score: index + 1,
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left: rect.left,
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top: rect.top,
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height: rect.height
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});
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}
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});
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};
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const getScoreByPosition = (x, y) => {
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for (let i = ranges.length - 1; i > 0; i--) {
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if (y >= groupRefRect.top && y <= groupRefRect.bottom) {
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if (x > ranges[i].left && y >= ranges[i].top && y <= ranges[i].top + ranges[i].height) {
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return ranges[i].score;
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}
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} else {
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const curTop = y < groupRefRect.top ? minRectTop : maxRectTop;
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if (x > ranges[i].left && ranges[i].top === curTop) {
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return ranges[i].score;
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}
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}
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}
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return props.allowHalf ? 0.5 : 1;
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};
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const select = (value) => {
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if (unselectable.value || value === props.modelValue) return;
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emit("update:modelValue", value);
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emit("change", value);
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};
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const onTouchStart = (event) => {
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if (untouchable.value) {
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return;
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}
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touch.start(event);
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updateRanges();
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};
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const onTouchMove = (event) => {
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if (untouchable.value) {
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return;
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}
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touch.move(event);
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if (touch.isHorizontal() && !touch.isTap.value) {
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const {
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clientX,
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clientY
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} = event.touches[0];
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preventDefault(event);
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select(getScoreByPosition(clientX, clientY));
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}
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};
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const renderStar = (item, index) => {
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const {
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icon,
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size,
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color,
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count,
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gutter,
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voidIcon,
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disabled,
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voidColor,
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allowHalf,
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iconPrefix,
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disabledColor
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} = props;
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const score = index + 1;
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const isFull = item.status === "full";
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const isVoid = item.status === "void";
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const renderHalf = allowHalf && item.value > 0 && item.value < 1;
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let style;
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if (gutter && score !== +count) {
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style = {
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paddingRight: addUnit(gutter)
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};
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}
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const onClickItem = (event) => {
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updateRanges();
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let value = allowHalf ? getScoreByPosition(event.clientX, event.clientY) : score;
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if (props.clearable && touch.isTap.value && value === props.modelValue) {
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value = 0;
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}
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select(value);
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};
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return _createVNode("div", {
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"key": index,
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"ref": setItemRefs(index),
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"role": "radio",
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"style": style,
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"class": bem("item"),
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"tabindex": disabled ? void 0 : 0,
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"aria-setsize": count,
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"aria-posinset": score,
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"aria-checked": !isVoid,
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"onClick": onClickItem
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}, [_createVNode(Icon, {
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"size": size,
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"name": isFull ? icon : voidIcon,
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"class": bem("icon", {
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disabled,
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full: isFull
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}),
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"color": disabled ? disabledColor : isFull ? color : voidColor,
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"classPrefix": iconPrefix
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}, null), renderHalf && _createVNode(Icon, {
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"size": size,
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"style": {
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width: item.value + "em"
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},
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"name": isVoid ? voidIcon : icon,
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"class": bem("icon", ["half", {
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disabled,
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full: !isVoid
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}]),
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"color": disabled ? disabledColor : isVoid ? voidColor : color,
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"classPrefix": iconPrefix
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}, null)]);
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};
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useCustomFieldValue(() => props.modelValue);
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useEventListener("touchmove", onTouchMove, {
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target: groupRef
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});
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return () => _createVNode("div", {
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"ref": groupRef,
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"role": "radiogroup",
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"class": bem({
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readonly: props.readonly,
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disabled: props.disabled
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}),
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"tabindex": props.disabled ? void 0 : 0,
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"aria-disabled": props.disabled,
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"aria-readonly": props.readonly,
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"onTouchstartPassive": onTouchStart
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}, [list.value.map(renderStar)]);
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}
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});
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export {
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stdin_default as default,
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rateProps
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};
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