Files
twitch-panels/src/components/ImageUpload.svelte
T

425 lines
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Svelte

<script lang="ts">
import { onMount } from "svelte";
import { uiStore, setLoading, clearError, setCurrentStep } from "../stores/uiStore";
import { panelStore } from "../stores/panelStore";
import { ImageService } from "../lib/services/imageService";
import { handleError } from "../lib/utils/errorHandler";
import type { ImageUploadResult } from "../lib/types/panel";
let imageService = new ImageService();
let { onImageSelect }: { onImageSelect: (image: string) => void } = $props();
let dropZone = $state<HTMLElement | null>(null);
let fileInput = $state<HTMLInputElement | null>(null);
let urlInput = $state<HTMLInputElement | null>(null);
let urlForm = $state<HTMLFormElement | null>(null);
let isDragOver = $state(false);
let showUrlInput = $state(false);
let uploadedImage = $state<string | null>(null);
let errorMessage = $state<string | null>(null);
const uiError = $derived($uiStore.error?.error);
onMount(() => {
setupPasteHandler();
setupDragAndDrop();
});
function setupPasteHandler() {
document.addEventListener("paste", handlePaste);
return () => document.removeEventListener("paste", handlePaste);
}
function setupDragAndDrop() {
if (!dropZone) return;
dropZone.addEventListener("dragover", handleDragOver);
dropZone.addEventListener("dragleave", handleDragLeave);
dropZone.addEventListener("drop", handleDrop);
return () => {
dropZone.removeEventListener("dragover", handleDragOver);
dropZone.removeEventListener("dragleave", handleDragLeave);
dropZone.removeEventListener("drop", handleDrop);
};
}
function handleDragOver(e: DragEvent) {
e.preventDefault();
isDragOver = true;
}
function handleDragLeave(e: DragEvent) {
e.preventDefault();
isDragOver = false;
}
async function handleDrop(e: DragEvent) {
e.preventDefault();
isDragOver = false;
const files = e.dataTransfer?.files;
if (!files || files.length === 0) return;
const file = files[0];
await handleFileUpload(file);
}
async function handleFileUpload(file: File) {
try {
setLoading(true);
clearError();
const result: ImageUploadResult = await imageService.handleFileUpload(file);
if (result.success && result.image) {
uploadedImage = result.image;
onImageSelect(result.image);
setCurrentStep("crop");
} else {
errorMessage = result.error || "Ошибка загрузки файла";
}
} catch (error) {
errorMessage = handleError(error);
} finally {
setLoading(false);
}
}
async function handlePaste(e: ClipboardEvent) {
e.preventDefault();
try {
setLoading(true);
clearError();
const result: ImageUploadResult = await imageService.handlePasteUpload(e);
if (result.success && result.image) {
uploadedImage = result.image;
onImageSelect(result.image);
setCurrentStep("crop");
} else {
errorMessage = result.error || "Ошибка вставки изображения";
}
} catch (error) {
errorMessage = handleError(error);
} finally {
setLoading(false);
}
}
async function handleUrlSubmit(e: Event) {
e.preventDefault();
if (!urlInput.value.trim()) return;
try {
setLoading(true);
clearError();
const result: ImageUploadResult = await imageService.handleUrlUpload(urlInput.value.trim());
if (result.success && result.image) {
uploadedImage = result.image;
onImageSelect(result.image);
setCurrentStep("crop");
showUrlInput = false;
} else {
errorMessage = result.error || "Ошибка загрузки изображения";
}
} catch (error) {
errorMessage = handleError(error);
} finally {
setLoading(false);
}
}
function triggerFileInput() {
fileInput?.click();
}
function resetUpload() {
uploadedImage = null;
errorMessage = null;
showUrlInput = false;
setCurrentStep("upload");
}
</script>
<div class="image-upload-container">
{#if uploadedImage}
<div class="uploaded-image-preview">
<img src={uploadedImage} alt="Uploaded preview" />
<div class="preview-actions">
<button class="btn btn-secondary" onclick={resetUpload}> Загрузить другое </button>
</div>
</div>
{:else}
<div
bind:this={dropZone}
class="drop-zone {isDragOver ? 'drag-over' : ''} {uiError ? 'error' : ''}"
role="button"
tabindex="0"
onclick={triggerFileInput}
onkeydown={(e) => {
if (e.key === 'Enter' || e.key === ' ') {
e.preventDefault();
triggerFileInput();
}
}}
>
<div class="drop-zone-content">
<svg class="upload-icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
<path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"></path>
<polyline points="7 10 12 15 17 10"></polyline>
<line x1="12" y1="15" x2="12" y2="3"></line>
</svg>
<h3>Загрузите изображение</h3>
<p>Перетащите файл сюда, нажмите для выбора, или вставьте через Ctrl+V</p>
<div class="upload-methods">
<button class="btn btn-primary" onclick={(e) => { e.stopPropagation(); triggerFileInput(); }}> Выбрать файл </button>
<button class="btn btn-secondary" onclick={() => (showUrlInput = !showUrlInput)}>
{showUrlInput ? "Скрыть" : "По URL"}
</button>
</div>
{#if showUrlInput}
<form bind:this={urlForm} onsubmit={handleUrlSubmit} class="url-input-form">
<input
bind:this={urlInput}
type="url"
placeholder="https://example.com/image.jpg"
required
class="url-input"
/>
<button type="submit" class="btn btn-primary" disabled={$uiStore.isLoading}> Загрузить </button>
</form>
{/if}
<div class="upload-tips">
<p>• Поддерживаемые форматы: JPG, PNG, WebP, GIF</p>
<p>• Максимальный размер: 10MB</p>
<p>• Или вставьте изображение через Ctrl+V</p>
</div>
</div>
</div>
<input
bind:this={fileInput}
type="file"
accept="image/jpeg,image/jpg,image/png,image/webp,image/gif"
style="display: none;"
onchange={(e) => {
const file = e.target.files?.[0];
if (file) handleFileUpload(file);
}}
/>
{/if}
{#if errorMessage}
<div class="error-message">
<strong>Ошибка:</strong>
{errorMessage}
</div>
{/if}
{#if $uiStore.isLoading}
<div class="loading-overlay">
<div class="loading-spinner"></div>
<p>Загрузка...</p>
</div>
{/if}
</div>
<style>
.image-upload-container {
position: relative;
width: 100%;
max-width: 400px;
margin: 0 auto;
}
.drop-zone {
border: 2px dashed #ccc;
border-radius: 8px;
padding: 2rem;
text-align: center;
cursor: pointer;
transition: all 0.3s ease;
background: #f9f9f9;
min-height: 200px;
display: flex;
align-items: center;
justify-content: center;
}
.drop-zone:hover {
border-color: #007bff;
background: #f0f8ff;
}
.drop-zone.drag-over {
border-color: #007bff;
background: #e3f2fd;
transform: scale(1.02);
}
.drop-zone.error {
border-color: #dc3545;
background: #ffebee;
}
.drop-zone-content {
display: flex;
flex-direction: column;
align-items: center;
gap: 1rem;
}
.upload-icon {
width: 48px;
height: 48px;
color: #666;
}
.drop-zone h3 {
margin: 0;
color: #333;
font-size: 1.2rem;
}
.drop-zone p {
margin: 0;
color: #666;
font-size: 0.9rem;
}
.upload-methods {
display: flex;
gap: 0.5rem;
flex-wrap: wrap;
justify-content: center;
}
.url-input-form {
display: flex;
gap: 0.5rem;
margin-top: 1rem;
width: 100%;
}
.url-input {
flex: 1;
padding: 0.5rem;
border: 1px solid #ddd;
border-radius: 4px;
font-size: 0.9rem;
}
.upload-tips {
font-size: 0.8rem;
color: #666;
margin-top: 1rem;
}
.upload-tips p {
margin: 0.25rem 0;
}
.uploaded-image-preview {
text-align: center;
}
.uploaded-image-preview img {
max-width: 100%;
max-height: 300px;
border-radius: 8px;
box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}
.preview-actions {
margin-top: 1rem;
}
.error-message {
background: #ffebee;
color: #c62828;
padding: 0.75rem;
border-radius: 4px;
margin-top: 1rem;
border: 1px solid #ffcdd2;
}
.loading-overlay {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background: rgba(255, 255, 255, 0.9);
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
border-radius: 8px;
}
.loading-spinner {
width: 40px;
height: 40px;
border: 4px solid #f3f3f3;
border-top: 4px solid #007bff;
border-radius: 50%;
animation: spin 1s linear infinite;
margin-bottom: 1rem;
}
@keyframes spin {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
.btn {
padding: 0.5rem 1rem;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 0.9rem;
transition: all 0.3s ease;
}
.btn-primary {
background: #007bff;
color: white;
}
.btn-primary:hover:not(:disabled) {
background: #0056b3;
}
.btn-secondary {
background: #6c757d;
color: white;
}
.btn-secondary:hover:not(:disabled) {
background: #545b62;
}
.btn:disabled {
opacity: 0.6;
cursor: not-allowed;
}
</style>