lightview/docs/components/diff.html

A reactive UI library with features of Bau, Juris, and HTMX plus safe LLM UI generation

<!-- SEO-friendly SPA Shim -->
<script src="/lightview-router.js"></script>
<script>
    if (globalThis.LightviewRouter) {
        LightviewRouter.base('/index.html');
    }
</script>

<!-- Load the page-specific stylesheet -->
<link rel="stylesheet" href="./index.css">

<!-- Gallery Structure -->
<div class="gallery-page">
    <div class="gallery-layout">
        <!-- Sidebar Overlay -->
        <div id="sidebar-overlay" class="sidebar-overlay"></div>

        <!-- Sidebar -->
        <div id="gallery-sidebar" class="gallery-sidebar" style="visibility: hidden" src="./component-nav.html"></div>

        <!-- Main Content -->
        <div id="gallery-main" class="gallery-main">
            <!-- Header Container -->
            <div
                style="position: sticky; top: 0; z-index: 30; background: var(--gallery-surface); border-bottom: 1px solid var(--gallery-border); backdrop-filter: blur(8px);">
                <!-- Breadcrumbs Row -->
                <div style="padding: 0.75rem 1.5rem 0;">
                    <script>
                        (() => {
                            const { Breadcrumbs } = Lightview.tags;
                            const breadcrumbs = Breadcrumbs({
                                id: 'page-breadcrumbs',
                                items: [
                                    { label: 'Components', href: '/docs/components' },
                                    { label: 'Diff' }
                                ]
                            });
                            document.currentScript.replaceWith(breadcrumbs.domEl);
                        })();
                    </script>
                </div>
                <!-- Title Row -->
                <div class="gallery-header"
                    style="border-bottom: none; height: auto; padding-top: 0.5rem; padding-bottom: 0.75rem;">
                    <button id="toggle-btn" class="toggle-btn" aria-label="Toggle Sidebar">
                        <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" class="toggle-icon"
                            style="stroke: currentColor; stroke-width: 2;">
                            <path stroke-linecap="round" stroke-linejoin="round" d="M15 19l-7-7 7-7" />
                            <path stroke-linecap="round" stroke-linejoin="round" d="M11 19l-7-7 7-7" />
                        </svg>
                    </button>
                    <h1 class="gallery-title">Diff</h1>
                </div>
            </div>

            <!-- Content -->
            <div class="gallery-content">
                <div class="section-content" style="max-width: 1000px;">
                    <p class="text-lg" style="opacity: 0.7; margin-bottom: 1.5rem;">
                        Diff component shows a side-by-side or before/after comparison.
                        Perfect for image comparisons and visual changes.
                    </p>

                    <!-- Basic Example with Examplify -->
                    <div class="card bg-base-200" style="margin-bottom: 2rem;">
                        <div class="card-body">
                            <h2 class="card-title">Basic Example</h2>
                            <p class="text-sm" style="opacity: 0.7; margin-bottom: 1rem;">Image comparison with drag
                                resizer</p>

                            <!-- Tabs -->
                            <script>
                                globalThis.switchSyntaxTab = (tabId) => {
                                    const tabs = ['tagged', 'vdom', 'object'];
                                    tabs.forEach(t => {
                                        const tabEl = document.getElementById(`tab-btn-${t}`);
                                        const contentEl = document.getElementById(`syntax-${t}`);
                                        if (t === tabId) {
                                            tabEl.classList.add('syntax-tab-active');
                                            contentEl.style.display = 'block';
                                        } else {
                                            tabEl.classList.remove('syntax-tab-active');
                                            contentEl.style.display = 'none';
                                        }
                                    });
                                };
                            </script>
                            <div role="tablist" class="syntax-tabs" style="margin-bottom: 1rem;">
                                <button id="tab-btn-tagged" role="tab" class="syntax-tab syntax-tab-active"
                                    onclick="switchSyntaxTab('tagged')">Tagged</button>
                                <button id="tab-btn-vdom" role="tab" class="syntax-tab"
                                    onclick="switchSyntaxTab('vdom')">vDOM</button>
                                <button id="tab-btn-object" role="tab" class="syntax-tab"
                                    onclick="switchSyntaxTab('object')">Object
                                    DOM</button>
                                <button id="tab-btn-html" role="tab" class="syntax-tab"
                                    onclick="switchSyntaxTab('html')">HTML</button>
                            </div>

                            <!-- Tagged Syntax -->
                            <div id="syntax-tagged">
                                <pre><script>
                                    examplify(document.currentScript.nextElementSibling, {
                                        at: document.currentScript.parentElement,
                                        scripts: ['/lightview.js', '/lightview-x.js'],
                                        type: 'module',
                                        minHeight: 300,
                                        autoRun: true
                                    });
                                </script><code contenteditable="true">const { default: Diff } = await import('/components/data-display/diff.js');
const { tags, $ } = Lightview;

const diff = Diff({ style: 'max-width: 500px; min-height: 300px;' },
    Diff.Item1({ src: 'https://picsum.photos/600/400?grayscale', alt: 'Before (Grayscale)' }),
    Diff.Item2({ src: 'https://picsum.photos/600/400', alt: 'After (Color)' }),
    Diff.Resizer({})
);

$('#example').content(diff);</code></pre>
                            </div>

                            <!-- vDOM Syntax -->
                            <div id="syntax-vdom" style="display: none;">
                                <pre><script>
                                    examplify(document.currentScript.nextElementSibling, {
                                        at: document.currentScript.parentElement,
                                        scripts: ['/lightview.js', '/lightview-x.js'],
                                        type: 'module',
                                        minHeight: 350
                                    });
                                </script><code contenteditable="true">const { default: Diff } = await import('/components/data-display/diff.js');
const { $ } = Lightview;

const diff = {
    tag: Diff,
    attributes: { style: 'max-width: 500px; min-height: 300px;' },
    children: [
        { tag: Diff.Item1, attributes: { src: 'https://picsum.photos/600/400?grayscale', alt: 'Before (Grayscale)' } },
        { tag: Diff.Item2, attributes: { src: 'https://picsum.photos/600/400', alt: 'After (Color)' } },
        { tag: Diff.Resizer }
    ]
};

$('#example').content(diff);</code></pre>
                            </div>

                            <!-- Object DOM Syntax -->
                            <div id="syntax-object" style="display: none;">
                                <pre><script>
                                    examplify(document.currentScript.nextElementSibling, {
                                        at: document.currentScript.parentElement,
                                        scripts: ['/lightview.js', '/lightview-x.js'],
                                        type: 'module',
                                        minHeight: 350
                                    });
                                </script><code contenteditable="true">const { default: Diff } = await import('/components/data-display/diff.js');
const { tags, $ } = Lightview;
tags.Diff = Diff;
tags['Diff.Item1'] = Diff.Item1;
tags['Diff.Item2'] = Diff.Item2;
tags['Diff.Resizer'] = Diff.Resizer;

const diff = {
    Diff: {
        style: 'max-width: 500px; min-height: 300px;',
        children: [
            { 'Diff.Item1': { src: 'https://picsum.photos/600/400?grayscale', alt: 'Before (Grayscale)' } },
            { 'Diff.Item2': { src: 'https://picsum.photos/600/400', alt: 'After (Color)' } },
            { 'Diff.Resizer': {} }
        ]
    }
};

$('#example').content(diff);</code></pre>
                            </div>

                            <!-- HTML Syntax -->
                            <div id="syntax-html" style="display: none;">
                                <pre><script>
                                    examplify(document.currentScript.nextElementSibling, {
                                        at: document.currentScript.parentElement,
                                        scripts: ['/lightview.js', '/lightview-x.js'],
                                        type: 'module',
                                        language: 'html',
                                        minHeight: 350
                                    });
                                </script><code contenteditable="true" class="language-html">&lt;!-- Import the component (registers lv-diff, lv-diff-item1, etc.) --&gt;
&lt;script type="module" src="/components/data-display/diff.js"&gt;&lt;/script&gt;

&lt;lv-diff style="max-width: 500px; min-height: 300px;"&gt;
    &lt;lv-diff-item1 src="https://picsum.photos/600/400?grayscale" alt="Before"&gt;&lt;/lv-diff-item1&gt;
    &lt;lv-diff-item2 src="https://picsum.photos/600/400" alt="After"&gt;&lt;/lv-diff-item2&gt;
    &lt;lv-diff-resizer&gt;&lt;/lv-diff-resizer&gt;
&lt;/lv-diff&gt;</code></pre>
                            </div>
                        </div>
                    </div>

                    <!-- Props Table -->
                    <h2 class="text-xl font-bold" style="margin-bottom: 1rem;">Props</h2>
                    <div style="overflow-x: auto; margin-bottom: 2rem;">
                        <table class="table table-zebra">
                            <thead>
                                <tr>
                                    <th>Prop</th>
                                    <th>Type</th>
                                    <th>Default</th>
                                    <th>Description</th>
                                </tr>
                            </thead>
                            <tbody>
                                <tr>
                                    <td>aspectRatio</td>
                                    <td>string</td>
                                    <td>'aspect-video'</td>
                                    <td>Aspect ratio class (aspect-video, aspect-square, etc.)</td>
                                </tr>
                            </tbody>
                        </table>
                    </div>

                    <!-- Sub-components -->
                    <h2 class="text-xl font-bold" style="margin-bottom: 1rem;">Sub-components</h2>
                    <div style="overflow-x: auto; margin-bottom: 2rem;">
                        <table class="table table-zebra">
                            <thead>
                                <tr>
                                    <th>Component</th>
                                    <th>Props</th>
                                    <th>Description</th>
                                </tr>
                            </thead>
                            <tbody>
                                <tr>
                                    <td><code>Diff.Item1</code></td>
                                    <td>src, alt</td>
                                    <td>Top comparison item (The "Before" overlay)</td>
                                </tr>
                                <tr>
                                    <td><code>Diff.Item2</code></td>
                                    <td>src, alt</td>
                                    <td>Bottom comparison item (The "After" background)</td>
                                </tr>
                                <tr>
                                    <td><code>Diff.Resizer</code></td>
                                    <td>-</td>
                                    <td>Drag handle for resizing</td>
                                </tr>
                            </tbody>
                        </table>
                    </div>


                </div>
            </div>
        </div>
    </div>