83 lines
2.2 KiB
Vue
83 lines
2.2 KiB
Vue
<script setup>
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import { ref, watchEffect } from 'vue';
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import { useAppStore } from '@/pinia/modules/app.js';
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import { storeToRefs } from 'pinia';
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const props = defineProps({
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// logo 尺寸，单位为:rem
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size: {
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type: Number,
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default: 2
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}
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})
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const darkLogoPath = "/logo.png"; // 系统没有暗黑模式logo，如果需要暗黑模式logo请自行修改文件路径。
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const lightLogoPath = "/logo.png";
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const appStore = useAppStore();
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const { isDark } = storeToRefs(appStore);
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const logoSrc = ref('');
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const showTextPlaceholder = ref(false);
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// 检查图片是否存在
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function checkImageExists(url) {
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return new Promise((resolve) => {
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const tryToLoad = new Image();
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tryToLoad.onload = () => resolve(true);
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tryToLoad.onerror = () => resolve(false);
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tryToLoad.src = url;
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});
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}
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watchEffect(async () => {
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showTextPlaceholder.value = false; // 重置占位符状态
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// 暗色模式直接 load，可以省一次亮色的 load
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if (isDark.value && await checkImageExists(darkLogoPath)) {
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logoSrc.value = darkLogoPath;
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return;
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}
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if (await checkImageExists(lightLogoPath)) {
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logoSrc.value = lightLogoPath;
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return
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}
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// 到这里就包没有提供两种 logo 了
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showTextPlaceholder.value = true;
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console.error(
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'错误: 在公共目录中找不到logo.png（或logo-dark.png）。'
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);
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console.warn(
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'解决方案: 请在您的公共目录(/public)中放置logo.png和/或logo-dark.png文件，或确保路径正确。'
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);
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});
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// 直接用 16px 作为默认的基准大小
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const SPACING = 16
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function getSize() {
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return {
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width: `${props.size * SPACING}px`,
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height: `${props.size * SPACING}px`,
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}
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}
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</script>
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<template>
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<img v-if="!showTextPlaceholder && logoSrc" :src="logoSrc" :alt="$GIN_VUE_ADMIN.appName" class="object-contain"
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:style="{
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...getSize()
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}" :class="{
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'filter invert-[90%] hue-rotate-180 brightness-110':
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isDark && logoSrc === '/logo.png',
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}" />
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<div v-else-if="showTextPlaceholder"
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class="rounded-full bg-gray-300 dark:bg-gray-600 flex items-center justify-center text-gray-700 dark:text-gray-200 font-bold text-xs"
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:style="{
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...getSize()
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}">
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GVA
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</div>
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</template>
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