新增: 粘贴文件附件坞与抽屉预览,支持全屏查看
This commit is contained in:
@@ -0,0 +1,276 @@
|
||||
<!-- =====================================================================
|
||||
FilePreviewDrawer.vue — 附件右侧抽屉预览
|
||||
图片/视频直接 ObjectURL 预览；PDF/DOCX 提取文本；MD 走 renderMd；
|
||||
其余类型展示元数据和下载。双击内容或点击放大按钮可占满窗口。
|
||||
===================================================================== -->
|
||||
<script setup lang="ts">
|
||||
import { computed, ref, onMounted, onBeforeUnmount, watch } from 'vue'
|
||||
import { attachmentState, closePreview, downloadAttachment, getAttachment, loadPreviewText } from '../../core/attachments'
|
||||
import { renderMd } from '../../core/markdown'
|
||||
|
||||
const activeAttachment = computed(() => getAttachment(attachmentState.activeId.value))
|
||||
const renderedMarkdown = computed(() => renderMd(activeAttachment.value?.text || ''))
|
||||
|
||||
/* 媒体 ObjectURL：每个附件只创建一份，切换/关闭/卸载时统一回收，防泄漏 */
|
||||
const mediaUrl = ref('')
|
||||
function revokeMedia() {
|
||||
if (mediaUrl.value) { URL.revokeObjectURL(mediaUrl.value); mediaUrl.value = '' }
|
||||
}
|
||||
watch(() => attachmentState.activeId.value, () => {
|
||||
revokeMedia()
|
||||
const att = activeAttachment.value
|
||||
if (att && (att.kind === 'image' || att.kind === 'video')) {
|
||||
mediaUrl.value = URL.createObjectURL(att.file)
|
||||
}
|
||||
void loadPreviewText(att)
|
||||
}, { immediate: true })
|
||||
onBeforeUnmount(revokeMedia)
|
||||
|
||||
function toggleMaximize() {
|
||||
attachmentState.maximized.value = !attachmentState.maximized.value
|
||||
}
|
||||
|
||||
function onKeydown(e: KeyboardEvent) {
|
||||
if (e.key === 'Escape') {
|
||||
if (attachmentState.maximized.value) attachmentState.maximized.value = false
|
||||
else closePreview()
|
||||
}
|
||||
}
|
||||
|
||||
onMounted(() => document.addEventListener('keydown', onKeydown))
|
||||
onBeforeUnmount(() => document.removeEventListener('keydown', onKeydown))
|
||||
</script>
|
||||
|
||||
<template>
|
||||
<Teleport to="body">
|
||||
<div
|
||||
v-if="activeAttachment"
|
||||
class="file-preview-mask"
|
||||
:class="{ maximized: attachmentState.maximized.value }"
|
||||
>
|
||||
<aside class="file-preview-drawer" role="dialog" aria-modal="true" :aria-label="`${activeAttachment.name} 预览`">
|
||||
<header class="file-preview-head">
|
||||
<div class="file-preview-title" :title="activeAttachment.name">
|
||||
<span class="file-preview-title-icon">📎</span>
|
||||
<span>{{ activeAttachment.name }}</span>
|
||||
</div>
|
||||
<div class="file-preview-actions">
|
||||
<button class="file-preview-btn" :title="attachmentState.maximized.value ? '退出放大' : '放大预览'" @click="toggleMaximize">
|
||||
{{ attachmentState.maximized.value ? '↙' : '↗' }}
|
||||
</button>
|
||||
<button class="file-preview-btn close" title="关闭预览" @click="closePreview">×</button>
|
||||
</div>
|
||||
</header>
|
||||
|
||||
<main class="file-preview-body" @dblclick="toggleMaximize">
|
||||
<!-- 图片 -->
|
||||
<img
|
||||
v-if="activeAttachment.kind === 'image'"
|
||||
class="file-preview-image"
|
||||
:src="mediaUrl"
|
||||
:alt="activeAttachment.name"
|
||||
/>
|
||||
|
||||
<!-- 视频 -->
|
||||
<video
|
||||
v-else-if="activeAttachment.kind === 'video'"
|
||||
class="file-preview-video"
|
||||
:src="mediaUrl"
|
||||
controls
|
||||
>你的浏览器不支持视频预览。</video>
|
||||
|
||||
<!-- Markdown -->
|
||||
<article
|
||||
v-else-if="activeAttachment.kind === 'markdown' && activeAttachment.textState === 'done'"
|
||||
class="file-preview-markdown"
|
||||
v-html="renderedMarkdown"
|
||||
/>
|
||||
|
||||
<!-- PDF / DOC / TXT：统一纯文本阅读 -->
|
||||
<pre
|
||||
v-else-if="(activeAttachment.kind === 'pdf' || activeAttachment.kind === 'doc' || activeAttachment.kind === 'text') && activeAttachment.textState === 'done'"
|
||||
class="file-preview-text"
|
||||
>{{ activeAttachment.text }}</pre>
|
||||
|
||||
<!-- 文本加载 / 错误 -->
|
||||
<div v-else-if="activeAttachment.textState === 'loading'" class="file-preview-status">正在提取文件内容…</div>
|
||||
<div v-else-if="activeAttachment.textState === 'error'" class="file-preview-status error">
|
||||
预览读取失败：{{ activeAttachment.textError }}
|
||||
</div>
|
||||
|
||||
<!-- 无结构化预览的文件 -->
|
||||
<div v-else class="file-preview-meta">
|
||||
<span class="file-preview-meta-icon">📎</span>
|
||||
<strong>{{ activeAttachment.name }}</strong>
|
||||
<span>{{ activeAttachment.file.type || '未知文件类型' }}</span>
|
||||
<span>{{ activeAttachment.size.toLocaleString() }} B</span>
|
||||
<button class="file-preview-download" @click="downloadAttachment(activeAttachment)">下载文件</button>
|
||||
</div>
|
||||
</main>
|
||||
|
||||
<footer class="file-preview-foot">
|
||||
<span>{{ activeAttachment.file.type || '未知类型' }}</span>
|
||||
<button class="file-preview-download link" @click="downloadAttachment(activeAttachment)">下载</button>
|
||||
</footer>
|
||||
</aside>
|
||||
</div>
|
||||
</Teleport>
|
||||
</template>
|
||||
|
||||
<style scoped>
|
||||
.file-preview-mask {
|
||||
position: fixed;
|
||||
inset: 0;
|
||||
z-index: 80;
|
||||
pointer-events: none;
|
||||
}
|
||||
.file-preview-drawer {
|
||||
position: absolute;
|
||||
top: 0;
|
||||
right: 0;
|
||||
width: min(480px, 100vw);
|
||||
height: 100%;
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
background: var(--ui-panel);
|
||||
border-left: 1px solid var(--ui-border);
|
||||
box-shadow: var(--shadow-lg);
|
||||
pointer-events: auto;
|
||||
animation: drawer-enter .18s ease-out;
|
||||
}
|
||||
.file-preview-mask.maximized .file-preview-drawer {
|
||||
width: 100vw;
|
||||
border-left: none;
|
||||
}
|
||||
@keyframes drawer-enter {
|
||||
from { transform: translateX(28px); opacity: 0; }
|
||||
to { transform: translateX(0); opacity: 1; }
|
||||
}
|
||||
.file-preview-head,
|
||||
.file-preview-foot {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
gap: 8px;
|
||||
flex: 0 0 auto;
|
||||
padding: 10px 12px;
|
||||
border-bottom: 1px solid var(--ui-border);
|
||||
}
|
||||
.file-preview-title {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
min-width: 0;
|
||||
gap: 7px;
|
||||
flex: 1;
|
||||
color: var(--ui-text);
|
||||
font-size: 14px;
|
||||
font-weight: 600;
|
||||
}
|
||||
.file-preview-title span:last-child {
|
||||
overflow: hidden;
|
||||
white-space: nowrap;
|
||||
text-overflow: ellipsis;
|
||||
}
|
||||
.file-preview-title-icon { font-size: 17px; }
|
||||
.file-preview-actions { display: flex; gap: 4px; }
|
||||
.file-preview-btn {
|
||||
width: 28px;
|
||||
height: 28px;
|
||||
border: none;
|
||||
border-radius: var(--radius-sm);
|
||||
background: transparent;
|
||||
color: var(--ui-muted);
|
||||
font-size: 18px;
|
||||
line-height: 1;
|
||||
cursor: pointer;
|
||||
}
|
||||
.file-preview-btn:hover { background: var(--ui-hover); color: var(--ui-text); }
|
||||
.file-preview-btn.close:hover { color: var(--ui-danger); }
|
||||
.file-preview-body {
|
||||
flex: 1;
|
||||
min-height: 0;
|
||||
overflow: auto;
|
||||
padding: 16px;
|
||||
background: var(--ui-bg);
|
||||
}
|
||||
.file-preview-image,
|
||||
.file-preview-video {
|
||||
display: block;
|
||||
width: 100%;
|
||||
max-height: 100%;
|
||||
object-fit: contain;
|
||||
margin: auto;
|
||||
}
|
||||
.file-preview-image { min-height: 200px; }
|
||||
.file-preview-text {
|
||||
margin: 0;
|
||||
white-space: pre-wrap;
|
||||
overflow-wrap: anywhere;
|
||||
color: var(--ui-text);
|
||||
font: 13px/1.7 var(--mono);
|
||||
}
|
||||
.file-preview-markdown {
|
||||
color: var(--ui-text);
|
||||
font-size: 14px;
|
||||
line-height: 1.7;
|
||||
overflow-wrap: anywhere;
|
||||
}
|
||||
.file-preview-markdown :deep(h1),
|
||||
.file-preview-markdown :deep(h2),
|
||||
.file-preview-markdown :deep(h3) { margin: 1.1em 0 .5em; }
|
||||
.file-preview-markdown :deep(p),
|
||||
.file-preview-markdown :deep(ul),
|
||||
.file-preview-markdown :deep(ol) { margin: .6em 0; }
|
||||
.file-preview-markdown :deep(pre) {
|
||||
padding: 10px;
|
||||
overflow: auto;
|
||||
background: #0f172a;
|
||||
color: #e2e8f0;
|
||||
border-radius: var(--radius-sm);
|
||||
}
|
||||
.file-preview-markdown :deep(code) { font-family: var(--mono); }
|
||||
.file-preview-status {
|
||||
display: grid;
|
||||
place-items: center;
|
||||
height: 100%;
|
||||
color: var(--ui-muted);
|
||||
font-size: 14px;
|
||||
text-align: center;
|
||||
}
|
||||
.file-preview-status.error { color: var(--ui-danger); }
|
||||
.file-preview-meta {
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
align-items: center;
|
||||
justify-content: center;
|
||||
gap: 10px;
|
||||
min-height: 100%;
|
||||
color: var(--ui-muted);
|
||||
font-size: 13px;
|
||||
text-align: center;
|
||||
}
|
||||
.file-preview-meta strong { color: var(--ui-text); overflow-wrap: anywhere; }
|
||||
.file-preview-meta-icon { font-size: 44px; }
|
||||
.file-preview-download {
|
||||
padding: 7px 12px;
|
||||
border: 1px solid var(--ui-primary);
|
||||
border-radius: var(--radius-sm);
|
||||
background: var(--ui-primary);
|
||||
color: #fff;
|
||||
font-size: 13px;
|
||||
cursor: pointer;
|
||||
}
|
||||
.file-preview-download:hover { filter: brightness(.94); }
|
||||
.file-preview-foot {
|
||||
justify-content: space-between;
|
||||
border-top: 1px solid var(--ui-border);
|
||||
border-bottom: none;
|
||||
color: var(--ui-muted);
|
||||
font-size: 12px;
|
||||
}
|
||||
.file-preview-download.link {
|
||||
padding: 3px 6px;
|
||||
border: none;
|
||||
background: transparent;
|
||||
color: var(--ui-primary);
|
||||
}
|
||||
</style>
|
||||
Reference in New Issue
Block a user