64 lines
2.3 KiB
Vue
64 lines
2.3 KiB
Vue
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<template>
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<div>
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<div class="content-section introduction">
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<div class="feature-intro">
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<h1>DeferredContent</h1>
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<p>DeferredContent postpones the loading the content that is initially not in the viewport until it becomes visible on scroll.</p>
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</div>
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<AppDemoActions />
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</div>
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<div class="content-section implementation">
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<div class="card">
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<div style="height: 800px">Scroll down to lazy load an image and the DataTable which initiates a query that is not executed on initial page load to speed up load performance.</div>
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<!-- <DeferredContent @load="onImageLoad">
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<img src="demo/images/nature/nature4.jpg" alt="Nature"/>
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</DeferredContent> -->
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<div style="height: 500px"></div>
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<DeferredContent @load="onDataLoad" role="region" aria-live="polite" aria-label="Content loaded after page scrolled down">
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<DataTable :value="products" responsiveLayout="scroll">
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<Column field="code" header="Code"></Column>
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<Column field="name" header="Name"></Column>
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<Column field="category" header="Category"></Column>
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<Column field="quantity" header="Quantity"></Column>
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</DataTable>
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</DeferredContent>
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</div>
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</div>
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<DeferredContentDoc />
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</div>
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</template>
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<script>
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import ProductService from '../../service/ProductService';
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import DeferredContentDoc from './DeferredContentDoc';
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export default {
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data() {
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return {
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products: null
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};
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},
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productService: null,
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created() {
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this.productService = new ProductService();
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},
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methods: {
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onImageLoad() {
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this.$toast.add({ severity: 'success', summary: 'Image Initialized', detail: 'Scroll down to load the datatable' });
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},
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onDataLoad() {
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this.productService.getProductsSmall().then((data) => (this.products = data));
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this.$toast.add({ severity: 'success', summary: 'Data Initialized', detail: 'Render Completed' });
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}
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},
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components: {
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DeferredContentDoc: DeferredContentDoc
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}
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};
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</script>
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