MediaUploader.jsx
7.63 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
import React, { useState, useRef } from 'react';
import { Upload, Link as LinkIcon, X, Film, Music, Image as ImageIcon, ExternalLink } from 'lucide-react';
import { uploadAsset } from '../api';
import { filenameFromUrl, thumbUrl, localAsset } from '../utils';
export default function MediaUploader({
label,
accept = 'image/*',
type = 'image', // 'image' | 'video' | 'audio'
multiple = false,
maxCount = 99,
value, // string | string[]
onChange,
hint,
}) {
const [urlInput, setUrlInput] = useState('');
const [isUploading, setIsUploading] = useState(false);
const [isDragOver, setIsDragOver] = useState(false);
const fileInputRef = useRef(null);
const items = multiple ? (Array.isArray(value) ? value : []) : (value ? [value] : []);
const handleFiles = async (files) => {
if (!files || files.length === 0) return;
setIsUploading(true);
try {
const newUrls = [];
for (const file of Array.from(files)) {
if (items.length + newUrls.length >= maxCount) break;
const res = await uploadAsset(file);
if (res.url) newUrls.push(res.url);
}
if (multiple) {
onChange([...items, ...newUrls].slice(0, maxCount));
} else if (newUrls.length > 0) {
onChange(newUrls[0]);
}
} catch (e) {
alert('上传失败: ' + e.message);
} finally {
setIsUploading(false);
if (fileInputRef.current) fileInputRef.current.value = '';
}
};
const handleAddUrl = (e) => {
if (e.key === 'Enter') {
e.preventDefault();
const u = urlInput.trim();
if (!u) return;
if (multiple) {
if (items.length >= maxCount) {
alert(`最多只允许添加 ${maxCount} 个`);
return;
}
onChange([...items, u]);
} else {
onChange(u);
}
setUrlInput('');
}
};
const handleRemove = (index) => {
if (multiple) {
const next = items.filter((_, i) => i !== index);
onChange(next);
} else {
onChange(null);
}
};
// 支持键盘粘贴截图
const handlePaste = (e) => {
const clipboardFiles = e.clipboardData?.files;
if (clipboardFiles && clipboardFiles.length > 0) {
e.preventDefault();
handleFiles(clipboardFiles);
}
};
return (
<div className="flex flex-col gap-2.5" onPaste={handlePaste}>
<div className="flex items-center justify-between">
<label className="text-xs font-semibold uppercase tracking-wider text-zinc-300">
{label} {maxCount < 99 && <span className="text-zinc-500 font-normal">({items.length}/{maxCount})</span>}
</label>
{hint && <span className="text-xs text-zinc-500">{hint}</span>}
</div>
{/* 拖拽上传与输入区 */}
{(items.length < maxCount || !multiple) && (
<div
onDragOver={(e) => { e.preventDefault(); setIsDragOver(true); }}
onDragLeave={() => setIsDragOver(false)}
onDrop={(e) => { e.preventDefault(); setIsDragOver(false); handleFiles(e.dataTransfer.files); }}
className={`relative border-2 border-dashed rounded-xl p-3.5 transition-all flex flex-col sm:flex-row items-center gap-3 bg-zinc-900/60 ${
isDragOver ? 'border-emerald-500 bg-emerald-950/20 shadow-inner' : 'border-zinc-800 hover:border-zinc-700'
}`}
>
<input
type="file"
ref={fileInputRef}
accept={accept}
multiple={multiple}
className="hidden"
onChange={(e) => handleFiles(e.target.files)}
/>
<button
type="button"
disabled={isUploading}
onClick={() => fileInputRef.current?.click()}
className="w-full sm:w-auto px-4 py-2 bg-zinc-800 hover:bg-zinc-700/80 text-zinc-200 text-xs font-medium rounded-lg flex items-center justify-center gap-2 border border-zinc-700/60 transition-colors shrink-0 cursor-pointer shadow-sm disabled:opacity-50"
>
<Upload className="w-4 h-4 text-emerald-400" />
<span>{isUploading ? '正在上传…' : '选择或拖拽文件'}</span>
</button>
<div className="relative flex-1 w-full">
<LinkIcon className="absolute left-3 top-1/2 -translate-y-1/2 w-3.5 h-3.5 text-zinc-500" />
<input
type="url"
placeholder="或粘贴 URL，回车添加（支持 Ctrl+V 粘贴截图）"
value={urlInput}
onChange={(e) => setUrlInput(e.target.value)}
onKeyDown={handleAddUrl}
className="w-full pl-9 pr-3 py-1.5 bg-zinc-950/60 border border-zinc-800 focus:border-emerald-500/60 focus:ring-1 focus:ring-emerald-500/40 rounded-lg text-xs text-zinc-200 placeholder-zinc-500 outline-none transition-all"
/>
</div>
</div>
)}
{/* 媒体缩略预览网格 */}
{items.length > 0 && (
<div className="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-4 gap-3 mt-1">
{items.map((u, idx) => {
const rawName = filenameFromUrl(u);
return (
<div
key={idx}
className="group relative bg-zinc-900 border border-zinc-800 rounded-xl overflow-hidden flex flex-col shadow-md hover:border-zinc-700 transition-all"
>
{/* 媒体呈现 */}
<div className="relative aspect-video bg-black flex items-center justify-center overflow-hidden">
{type === 'image' && (
<img
src={thumbUrl(u)}
alt={rawName}
className="w-full h-full object-cover transition-transform group-hover:scale-105 duration-300"
/>
)}
{type === 'video' && (
<video
src={localAsset(u)}
controls
className="w-full h-full object-contain bg-black"
/>
)}
{type === 'audio' && (
<div className="p-2 w-full flex flex-col items-center justify-center gap-1 text-zinc-400">
<Music className="w-6 h-6 text-emerald-400 mb-1" />
<audio src={localAsset(u)} controls className="w-full h-8" />
</div>
)}
{/* 悬停快速操作 */}
<div className="absolute top-1.5 right-1.5 flex gap-1 z-10">
<a
href={u}
target="_blank"
rel="noreferrer"
className="p-1 bg-black/60 hover:bg-black/90 text-zinc-300 hover:text-white rounded-md backdrop-blur-md transition-colors"
title="打开原图"
>
<ExternalLink className="w-3.5 h-3.5" />
</a>
<button
type="button"
onClick={() => handleRemove(idx)}
className="p-1 bg-rose-950/80 hover:bg-rose-600 text-rose-300 hover:text-white rounded-md backdrop-blur-md transition-colors cursor-pointer"
title="删除"
>
<X className="w-3.5 h-3.5" />
</button>
</div>
</div>
{/* 底部文件名 */}
<div className="px-2.5 py-1.5 bg-zinc-900/90 text-[11px] text-zinc-400 truncate border-t border-zinc-800/80 font-mono" title={rawName}>
{rawName || '媒体文件'}
</div>
</div>
);
})}
</div>
)}
</div>
);
}