181 lines
3.7 KiB
Svelte
181 lines
3.7 KiB
Svelte
<script lang="ts">
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import ImagePlus from '@lucide/svelte/icons/image-plus';
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import X from '@lucide/svelte/icons/x';
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import { onDestroy } from 'svelte';
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let {
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name = 'image',
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required = false,
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disabled = false,
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onSelect = null,
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previewUrl = null
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}: {
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name?: string;
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required?: boolean;
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disabled?: boolean;
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onSelect?: ((file: File) => void) | null;
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previewUrl?: string | null;
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} = $props();
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let inputEl = $state<HTMLInputElement | null>(null);
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let dragging = $state(false);
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// derived value instead of initializing from required
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let canRemove = $derived(!required);
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function openFileDialog() {
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if (!disabled) {
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inputEl?.click();
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}
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}
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function handleFiles(files: FileList | null) {
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if (!files || files.length === 0) return;
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const selected = files[0];
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if (!selected.type.startsWith('image/')) return;
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cleanupPreview();
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previewUrl = URL.createObjectURL(selected);
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if (onSelect) onSelect(selected);
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}
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function onInputChange(e: Event) {
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const target = e.target as HTMLInputElement;
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handleFiles(target.files);
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}
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function onDrop(e: DragEvent) {
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e.preventDefault();
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dragging = false;
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if (disabled) return;
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handleFiles(e.dataTransfer?.files ?? null);
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}
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function cleanupPreview() {
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if (previewUrl) {
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URL.revokeObjectURL(previewUrl);
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previewUrl = null;
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}
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}
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onDestroy(cleanupPreview);
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</script>
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<div>
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<input
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bind:this={inputEl}
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type="file"
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name={name}
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accept="image/*"
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required={required}
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disabled={disabled}
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capture="environment"
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onchange={onInputChange}
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formaction="/item?/describe"
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hidden
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/>
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<button
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class="dropzone"
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class:has-image={!!previewUrl}
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class:dragging={dragging}
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onclick={openFileDialog}
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ondragover={(e) => {e.preventDefault(); dragging = !disabled;}}
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ondragleave={() => (dragging = false)}
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ondrop={onDrop}
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type="button"
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>
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{#if previewUrl}
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<img src={previewUrl} alt="Selected preview" />
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<div class="overlay">
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<ImagePlus size={24} />
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<span>Replace image</span>
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</div>
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{:else}
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<div class="placeholder py-4">
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<ImagePlus size={32} />
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<p>
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Click or drag an image here
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<span class="text-error">{required ? '*' : ''}</span>
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</p>
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</div>
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{/if}
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</button>
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{#if previewUrl && canRemove}
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<button
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class="hover:text-destructive p-2"
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onclick={cleanupPreview}
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type="button"
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>
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<X size={24} class="inline" />
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<span class="inline align-middle">Remove image</span>
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</button>
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{/if}
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</div>
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<style>
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.dropzone {
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position: relative;
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width: 100%;
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max-height: 200px;
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min-height: 80px;
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border-radius: 12px;
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border: 2px dashed var(--border);
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cursor: pointer;
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display: flex;
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align-items: center;
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justify-content: center;
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overflow: hidden;
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transition: border-color 0.2s, background 0.2s;
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}
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.dropzone.dragging {
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border-color: var(--primary);
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background: var(--muted);
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}
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.placeholder {
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text-align: center;
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color: var(--muted-foreground);
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display: flex;
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flex-direction: column;
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gap: 0.5rem;
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align-items: center;
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}
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img {
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width: 100%;
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height: 100%;
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object-fit: cover;
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}
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.overlay {
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position: absolute;
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inset: 0;
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background: rgba(0, 0, 0, 0.55);
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color: white;
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display: flex;
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flex-direction: column;
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gap: 0.4rem;
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align-items: center;
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justify-content: center;
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opacity: 0;
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transition: opacity 0.2s;
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pointer-events: none;
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text-align: center;
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font-size: 0.9rem;
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}
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.has-image:hover .overlay {
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opacity: 1;
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}
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.has-image:hover img {
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filter: brightness(0.8);
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}
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</style>
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