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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JSDoc: Class: VirtualList</title>
<script src="scripts/prettify/prettify.js"> </script>
<script src="scripts/prettify/lang-css.js"> </script>
<!--[if lt IE 9]>
<script src="//html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<link type="text/css" rel="stylesheet" href="styles/prettify-tomorrow.css">
<link type="text/css" rel="stylesheet" href="styles/jsdoc-default.css">
</head>
<body>
<div id="main">
<h1 class="page-title">Class: VirtualList</h1>
<section>
<header>
<h2><span class="attribs"><span class="type-signature"></span></span>VirtualList<span class="signature">(bridges<span class="signature-attributes">opt</span>, props<span class="signature-attributes">opt</span>)</span><span class="type-signature"></span></h2>
<div class="class-description"><p>Built-in component for high-performance virtualized list rendering.
Only renders items currently visible within the viewport.
Supports optional pagination mode with pageSize, current page tracking, and navigation controls.</p></div>
</header>
<article>
<div class="container-overview">
<h2>Constructor</h2>
<h4 class="name" id="VirtualList"><span class="type-signature"></span>new VirtualList<span class="signature">(bridges<span class="signature-attributes">opt</span>, props<span class="signature-attributes">opt</span>)</span><span class="type-signature"></span></h4>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Attributes</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>bridges</code></td>
<td class="type">
<span class="param-type">object</span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last"><p>External bridges.</p></td>
</tr>
<tr>
<td class="name"><code>props</code></td>
<td class="type">
<span class="param-type">object</span>
</td>
<td class="attributes">
<optional><br>
</td>
<td class="description last"><p>Component properties (items, itemHeight, pageSize, page, totalItems, showControls).</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_runtime_VirtualList.js.html">lib/core/runtime/VirtualList.js</a>, <a href="lib_core_runtime_VirtualList.js.html#line11">line 11</a>
</li></ul></dd>
</dl>
</div>
<h3 class="subsection-title">Classes</h3>
<dl>
<dt><a href="VirtualList.html">VirtualList</a></dt>
<dd></dd>
</dl>
<h3 class="subsection-title">Members</h3>
<h4 class="name" id="currentPage"><span class="type-signature"></span>currentPage<span class="type-signature"></span></h4>
<div class="description">
<p>Currently active 1-based page index. @type {number}</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_runtime_VirtualList.js.html">lib/core/runtime/VirtualList.js</a>, <a href="lib_core_runtime_VirtualList.js.html#line57">line 57</a>
</li></ul></dd>
</dl>
<h4 class="name" id="itemVar"><span class="type-signature"></span>itemVar<span class="type-signature"></span></h4>
<div class="description">
<p>Loop item variable name (e.g. 'item'). @type {string}</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_runtime_VirtualList.js.html">lib/core/runtime/VirtualList.js</a>, <a href="lib_core_runtime_VirtualList.js.html#line47">line 47</a>
</li></ul></dd>
</dl>
<h4 class="name" id="lastViewportHeight"><span class="type-signature"></span>lastViewportHeight<span class="type-signature"></span></h4>
<div class="description">
<p>Cached viewport height to prevent redundant layout loops. @type {number}</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_runtime_VirtualList.js.html">lib/core/runtime/VirtualList.js</a>, <a href="lib_core_runtime_VirtualList.js.html#line51">line 51</a>
</li></ul></dd>
</dl>
<h4 class="name" id="measuredHeights"><span class="type-signature"></span>measuredHeights<span class="type-signature"></span></h4>
<div class="description">
<p>Measured actual heights of individual items. @type {number[]}</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_runtime_VirtualList.js.html">lib/core/runtime/VirtualList.js</a>, <a href="lib_core_runtime_VirtualList.js.html#line43">line 43</a>
</li></ul></dd>
</dl>
<h4 class="name" id="rafId"><span class="type-signature"></span>rafId<span class="type-signature"></span></h4>
<div class="description">
<p>Animation frame request handle. @type {number|null}</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_runtime_VirtualList.js.html">lib/core/runtime/VirtualList.js</a>, <a href="lib_core_runtime_VirtualList.js.html#line53">line 53</a>
</li></ul></dd>
</dl>
<h4 class="name" id="resizeObserver"><span class="type-signature"></span>resizeObserver<span class="type-signature"></span></h4>
<div class="description">
<p>Resize observer to monitor dynamic item size changes and viewport resizing. @type {ResizeObserver|null}</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_runtime_VirtualList.js.html">lib/core/runtime/VirtualList.js</a>, <a href="lib_core_runtime_VirtualList.js.html#line49">line 49</a>
</li></ul></dd>
</dl>
<h4 class="name" id="scrollRafId"><span class="type-signature"></span>scrollRafId<span class="type-signature"></span></h4>
<div class="description">
<p>Animation frame request handle for scroll throttling. @type {number|null}</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_runtime_VirtualList.js.html">lib/core/runtime/VirtualList.js</a>, <a href="lib_core_runtime_VirtualList.js.html#line55">line 55</a>
</li></ul></dd>
</dl>
<h4 class="name" id="templateNode"><span class="type-signature"></span>templateNode<span class="type-signature"></span></h4>
<div class="description">
<p>The template node extracted from slot transclusion. @type {HTMLTemplateElement|null}</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_runtime_VirtualList.js.html">lib/core/runtime/VirtualList.js</a>, <a href="lib_core_runtime_VirtualList.js.html#line45">line 45</a>
</li></ul></dd>
</dl>
<h3 class="subsection-title">Methods</h3>
<h4 class="name" id="createItemElement"><span class="type-signature"></span>createItemElement<span class="signature">()</span><span class="type-signature"> → {Element}</span></h4>
<div class="description">
<p>Creates a fresh element structure from the template to populate recycled element pool.</p>
</div>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_runtime_VirtualList.js.html">lib/core/runtime/VirtualList.js</a>, <a href="lib_core_runtime_VirtualList.js.html#line265">line 265</a>
</li></ul></dd>
</dl>
<h5>Returns:</h5>
<dl>
<dt>
Type
</dt>
<dd>
<span class="param-type">Element</span>
</dd>
</dl>
<h4 class="name" id="goToPage"><span class="type-signature"></span>goToPage<span class="signature">(targetPage)</span><span class="type-signature"></span></h4>
<div class="description">
<p>Navigates to a specific page when pagination is enabled.</p>
</div>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>targetPage</code></td>
<td class="type">
<span class="param-type">number</span>
</td>
<td class="description last"><p>1-based target page index.</p></td>
</tr>
</tbody>
</table>
<dl class="details">
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>
<a href="lib_core_runtime_VirtualList.js.html">lib/core/runtime/VirtualList.js</a>, <a href="lib_core_runtime_VirtualList.js.html#line115">line 115</a>
</li></ul></dd>
</dl>
<h4 class="name" id="initResizeObserver"><span class="type-signature"></span>initResizeObserver<span class="signature">()</span><span class="type-signature"></span></h4>