466 lines
10 KiB
Vue
466 lines
10 KiB
Vue
<template>
|
||
<div class="file-reader" v-if="file">
|
||
<div class="reader-header">
|
||
<h3>{{ file.name }}</h3>
|
||
<div class="header-actions">
|
||
<button
|
||
v-if="file.isRemote && loadedFile.type !== ''"
|
||
@click="downloadFile"
|
||
>
|
||
{{ fileTypeCheck == "unsupported-size" ? "远程传输" : "浏览器下载" }}
|
||
</button>
|
||
<button v-if="canEdit" @click="toggleEdit">
|
||
{{ isEditing ? "保存" : "编辑" }}
|
||
</button>
|
||
<button @click="$emit('close')">关闭</button>
|
||
</div>
|
||
</div>
|
||
|
||
<div class="reader-content">
|
||
<!-- 图片预览 -->
|
||
<div v-if="fileTypeCheck === 'image'" class="image-viewer">
|
||
<img :src="fileUrl" :alt="file.name" />
|
||
</div>
|
||
|
||
<!-- 视频预览 -->
|
||
<div v-else-if="fileTypeCheck === 'video'" class="video-viewer">
|
||
<video controls>
|
||
<source :src="fileUrl" :type="mimeType" />
|
||
您的浏览器不支持视频播放
|
||
</video>
|
||
</div>
|
||
|
||
<!-- 代码预览 -->
|
||
<div v-else-if="fileTypeCheck === 'code'" class="code-viewer">
|
||
<div class="code-header">
|
||
<select v-model="selectedLanguage">
|
||
<option value="auto">自动检测</option>
|
||
<option value="javascript">JavaScript</option>
|
||
<option value="typescript">TypeScript</option>
|
||
<option value="html">HTML</option>
|
||
<option value="css">CSS</option>
|
||
<option value="python">Python</option>
|
||
<option value="java">Java</option>
|
||
<option value="cpp">C++</option>
|
||
<option value="go">Go</option>
|
||
<option value="rust">Rust</option>
|
||
<option value="lua">Lua</option>
|
||
<option value="sql">SQL</option>
|
||
<option value="shell">Shell</option>
|
||
<option value="json">JSON</option>
|
||
<option value="other">其他</option>
|
||
</select>
|
||
</div>
|
||
<div v-if="isEditing" class="editor">
|
||
<textarea
|
||
v-model="editingContent"
|
||
:style="{ height: editorHeight + 'px', minHeight: '100%' }"
|
||
@input="adjustEditorHeight"
|
||
></textarea>
|
||
</div>
|
||
<pre v-else><code v-html="highlightedCode"></code></pre>
|
||
</div>
|
||
|
||
<!-- 文本预览 -->
|
||
<div
|
||
v-else-if="
|
||
fileTypeCheck === 'text' || fileTypeCheck === 'unsupported-type'
|
||
"
|
||
class="text-viewer"
|
||
>
|
||
<div v-if="isEditing" class="editor">
|
||
<textarea
|
||
v-model="editingContent"
|
||
:style="{ height: editorHeight + 'px' }"
|
||
@input="adjustEditorHeight"
|
||
></textarea>
|
||
</div>
|
||
<pre v-else>{{ fileContent }}</pre>
|
||
</div>
|
||
<!-- 不支持的文件类型 -->
|
||
<div v-else class="unsupported">
|
||
{{
|
||
fileTypeCheck === "unsupported-size"
|
||
? "文件过大，无法预览,请传输后查看"
|
||
: "不支持预览该类型的文件"
|
||
}}
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</template>
|
||
|
||
<script setup lang="ts">
|
||
import { ref, onMounted, onUnmounted, computed } from "vue";
|
||
import {
|
||
fileMgrInstance,
|
||
type FileData,
|
||
type FileInfo,
|
||
} from "../utils/fileMgr";
|
||
import hljs from "highlight.js";
|
||
import "highlight.js/styles/github.css";
|
||
import { Modal } from "ant-design-vue";
|
||
import { localCurrentFile, remoteCurrentFile } from "../utils/common";
|
||
|
||
const props = defineProps<{
|
||
file: FileInfo;
|
||
}>();
|
||
|
||
const emit = defineEmits<{
|
||
(e: "close"): void;
|
||
}>();
|
||
|
||
const fileUrl = ref("");
|
||
const fileContent = ref("");
|
||
const mimeType = ref("");
|
||
const selectedLanguage = ref("auto");
|
||
const isEditing = ref(false);
|
||
const editingContent = ref("");
|
||
const editorHeight = ref(300);
|
||
|
||
// 下载文件
|
||
const downloadFile = async () => {
|
||
if (fileTypeCheck.value == "unsupported-size") {
|
||
await props.file.getFile(
|
||
false,
|
||
localCurrentFile.value.path.replace(
|
||
(
|
||
await fileMgrInstance.getRootFile()
|
||
).path,
|
||
""
|
||
),
|
||
remoteCurrentFile.value.path
|
||
);
|
||
localCurrentFile.value.loadLocalDirectory();
|
||
return;
|
||
}
|
||
Modal.confirm({
|
||
title: "下载文件",
|
||
content: `确定要下载${props.file.name}吗？`,
|
||
onOk: () => {
|
||
const blob = new Blob([loadedFile.value.buffer], {
|
||
type: loadedFile.value.type || "application/octet-stream",
|
||
});
|
||
const url = URL.createObjectURL(blob);
|
||
const a = document.createElement("a");
|
||
a.href = url;
|
||
a.download = props.file.name;
|
||
a.click();
|
||
URL.revokeObjectURL(url);
|
||
},
|
||
});
|
||
};
|
||
|
||
// 是否可以编辑
|
||
const canEdit = computed(() => {
|
||
return fileTypeCheck.value === "text" || fileTypeCheck.value === "code";
|
||
});
|
||
|
||
// 文件类型判断
|
||
const fileTypeCheck = computed(() => {
|
||
//如果文件大于30M，则不预览
|
||
if (props.file.size > 30 * 1024 * 1024) {
|
||
return "unsupported-size";
|
||
}
|
||
const ext = props.file.name.split(".").pop()?.toLowerCase() || "";
|
||
|
||
// 图片类型
|
||
if (["jpg", "jpeg", "png", "gif", "webp", "svg"].includes(ext)) {
|
||
return "image";
|
||
}
|
||
|
||
// 视频类型
|
||
if (["mp4", "webm", "ogg"].includes(ext)) {
|
||
return "video";
|
||
}
|
||
|
||
// 代码类型
|
||
if (
|
||
[
|
||
"js",
|
||
"ts",
|
||
"json",
|
||
"html",
|
||
"css",
|
||
"vue",
|
||
"jsx",
|
||
"tsx",
|
||
"py",
|
||
"java",
|
||
"cpp",
|
||
"c",
|
||
"go",
|
||
"rs",
|
||
"lua",
|
||
"sql",
|
||
"shell",
|
||
].includes(ext)
|
||
) {
|
||
return "code";
|
||
}
|
||
|
||
// 文本类型
|
||
if (["txt", "md", "log"].includes(ext)) {
|
||
return "text";
|
||
}
|
||
|
||
return "unsupported-type";
|
||
});
|
||
|
||
// 代码高亮处理
|
||
const highlightedCode = computed(() => {
|
||
if (!fileContent.value) return "";
|
||
try {
|
||
if (selectedLanguage.value && selectedLanguage.value !== "auto") {
|
||
// 使用指定的语言
|
||
const result = hljs.highlight(fileContent.value, {
|
||
language: selectedLanguage.value,
|
||
});
|
||
return result.value;
|
||
} else {
|
||
// 自动检测语言
|
||
const result = hljs.highlightAuto(fileContent.value);
|
||
selectedLanguage.value = result.language || "auto";
|
||
return result.value;
|
||
}
|
||
} catch (err) {
|
||
console.error("代码高亮失败:", err);
|
||
return fileContent.value;
|
||
}
|
||
});
|
||
|
||
// 切换编辑模式
|
||
const toggleEdit = async () => {
|
||
if (isEditing.value) {
|
||
// 保存文件
|
||
try {
|
||
const encoder = new TextEncoder();
|
||
const buffer = encoder.encode(editingContent.value);
|
||
await props.file.saveFile(buffer);
|
||
fileContent.value = editingContent.value;
|
||
isEditing.value = false;
|
||
} catch (err) {
|
||
console.error("保存文件失败:", err);
|
||
alert("保存文件失败: " + (err as Error).message);
|
||
}
|
||
} else {
|
||
// 进入编辑模式
|
||
editingContent.value = fileContent.value;
|
||
isEditing.value = true;
|
||
adjustEditorHeight();
|
||
}
|
||
};
|
||
|
||
// 自动调整编辑器高度
|
||
const adjustEditorHeight = () => {
|
||
const textarea = document.querySelector(
|
||
".editor textarea"
|
||
) as HTMLTextAreaElement;
|
||
if (textarea) {
|
||
textarea.style.height = "auto";
|
||
textarea.style.height = textarea.scrollHeight + "px";
|
||
editorHeight.value = textarea.scrollHeight;
|
||
}
|
||
};
|
||
const loadedFile = ref<{
|
||
type: string;
|
||
buffer: ArrayBuffer;
|
||
name: string;
|
||
size: number;
|
||
lastModified: number;
|
||
}>({
|
||
type: "",
|
||
buffer: undefined,
|
||
name: "",
|
||
size: 0,
|
||
lastModified: 0,
|
||
});
|
||
// 加载文件内容
|
||
const loadFile = async () => {
|
||
try {
|
||
const file: FileData = (await props.file.getFile(true)) as FileData;
|
||
loadedFile.value = file;
|
||
if (file.buffer == null) {
|
||
file.buffer = props.file.previewCache;
|
||
}
|
||
if (fileTypeCheck.value === "image" || fileTypeCheck.value === "video") {
|
||
fileUrl.value = URL.createObjectURL(new Blob([file.buffer]));
|
||
mimeType.value = file.type;
|
||
} else if (
|
||
fileTypeCheck.value === "code" ||
|
||
fileTypeCheck.value === "text"
|
||
) {
|
||
fileContent.value = new TextDecoder().decode(file.buffer);
|
||
} else {
|
||
fileContent.value = new TextDecoder().decode(file.buffer);
|
||
}
|
||
} catch (err) {
|
||
console.error("加载文件失败:", err);
|
||
}
|
||
};
|
||
|
||
onMounted(() => {
|
||
loadFile();
|
||
});
|
||
|
||
// 组件卸载时清理资源
|
||
onUnmounted(() => {
|
||
if (fileUrl.value) {
|
||
URL.revokeObjectURL(fileUrl.value);
|
||
props.file.clearPreviewCache();
|
||
}
|
||
});
|
||
</script>
|
||
|
||
<style scoped>
|
||
.file-reader {
|
||
position: fixed;
|
||
top: 0;
|
||
left: 0;
|
||
right: 0;
|
||
bottom: 0;
|
||
background: rgba(255, 255, 255, 0.98);
|
||
z-index: 1000;
|
||
display: flex;
|
||
flex-direction: column;
|
||
padding: 20px;
|
||
}
|
||
|
||
.reader-header {
|
||
display: flex;
|
||
justify-content: space-between;
|
||
align-items: center;
|
||
padding-bottom: 20px;
|
||
border-bottom: 1px solid #eee;
|
||
}
|
||
|
||
.reader-content {
|
||
flex: 1;
|
||
overflow: auto;
|
||
padding: 20px 0;
|
||
}
|
||
|
||
.image-viewer {
|
||
display: flex;
|
||
justify-content: center;
|
||
align-items: center;
|
||
height: 100%;
|
||
}
|
||
|
||
.image-viewer img {
|
||
max-width: 100%;
|
||
max-height: 100%;
|
||
object-fit: contain;
|
||
}
|
||
|
||
.video-viewer {
|
||
display: flex;
|
||
justify-content: center;
|
||
align-items: center;
|
||
height: 100%;
|
||
}
|
||
|
||
.video-viewer video {
|
||
max-width: 100%;
|
||
max-height: 100%;
|
||
}
|
||
|
||
.code-viewer,
|
||
.text-viewer {
|
||
height: 100%;
|
||
overflow: auto;
|
||
}
|
||
|
||
.code-viewer pre,
|
||
.text-viewer pre {
|
||
margin: 0;
|
||
padding: 20px;
|
||
background: #f5f5f5;
|
||
border-radius: 4px;
|
||
white-space: pre-wrap;
|
||
word-wrap: break-word;
|
||
}
|
||
|
||
.unsupported {
|
||
display: flex;
|
||
justify-content: center;
|
||
align-items: center;
|
||
height: 100%;
|
||
color: #666;
|
||
}
|
||
|
||
button {
|
||
padding: 6px 12px;
|
||
border: 1px solid #ddd;
|
||
border-radius: 4px;
|
||
background: white;
|
||
cursor: pointer;
|
||
}
|
||
|
||
button:hover {
|
||
background: #f5f5f5;
|
||
}
|
||
|
||
.code-header {
|
||
padding: 10px;
|
||
background: #f8f8f8;
|
||
border-bottom: 1px solid #eee;
|
||
}
|
||
|
||
.code-header select {
|
||
padding: 4px 8px;
|
||
border: 1px solid #ddd;
|
||
border-radius: 4px;
|
||
background: white;
|
||
}
|
||
|
||
.code-viewer pre {
|
||
margin: 0;
|
||
padding: 20px;
|
||
background: #f8f8f8;
|
||
border-radius: 4px;
|
||
overflow-x: auto;
|
||
}
|
||
|
||
.code-viewer code {
|
||
font-family: "Fira Code", "Consolas", monospace;
|
||
font-size: 14px;
|
||
line-height: 1.5;
|
||
}
|
||
|
||
/* 取消 scoped 样式对 highlight.js 的影响 */
|
||
:deep(.hljs) {
|
||
background: transparent;
|
||
padding: 0;
|
||
}
|
||
|
||
.header-actions {
|
||
display: flex;
|
||
gap: 10px;
|
||
}
|
||
|
||
.editor {
|
||
height: 100%;
|
||
padding: 20px;
|
||
background: #f8f8f8;
|
||
border-radius: 4px;
|
||
}
|
||
|
||
.editor textarea {
|
||
width: 100%;
|
||
min-height: 300px;
|
||
padding: 10px;
|
||
border: 1px solid #ddd;
|
||
border-radius: 4px;
|
||
font-family: "Fira Code", "Consolas", monospace;
|
||
font-size: 14px;
|
||
line-height: 1.5;
|
||
resize: none;
|
||
background: white;
|
||
}
|
||
|
||
.editor textarea:focus {
|
||
outline: none;
|
||
border-color: #4a9eff;
|
||
}
|
||
</style>
|