49 lines
1.6 KiB
JavaScript
49 lines
1.6 KiB
JavaScript
import { computed, onMounted, onUnmounted, ref, watchEffect } from "vue";
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import { isClient } from "@vueuse/shared";
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//#region src/Avatar/utils.ts
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function resolveLoadingStatus(image, src) {
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if (!image) return "idle";
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if (!src) return "error";
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if (image.src !== src) image.src = src;
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return image.complete && image.naturalWidth > 0 ? "loaded" : "loading";
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}
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function useImageLoadingStatus(src, { referrerPolicy, crossOrigin } = {}) {
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const isMounted = ref(false);
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const imageRef = ref(null);
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const image = computed(() => {
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if (!isMounted.value) return null;
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if (!imageRef.value && isClient) imageRef.value = new window.Image();
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return imageRef.value;
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});
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const loadingStatus = ref(resolveLoadingStatus(image.value, src.value));
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const updateStatus = (status) => () => {
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if (isMounted.value) loadingStatus.value = status;
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};
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onMounted(() => {
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isMounted.value = true;
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watchEffect((onCleanup) => {
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const img = image.value;
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if (!img) return;
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loadingStatus.value = resolveLoadingStatus(img, src.value);
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const handleLoad = updateStatus("loaded");
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const handleError = updateStatus("error");
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img.addEventListener("load", handleLoad);
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img.addEventListener("error", handleError);
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if (referrerPolicy?.value) img.referrerPolicy = referrerPolicy.value;
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if (typeof crossOrigin?.value === "string") img.crossOrigin = crossOrigin.value;
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onCleanup(() => {
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img.removeEventListener("load", handleLoad);
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img.removeEventListener("error", handleError);
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});
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});
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});
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onUnmounted(() => {
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isMounted.value = false;
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});
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return loadingStatus;
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}
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//#endregion
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export { useImageLoadingStatus };
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//# sourceMappingURL=utils.js.map
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