feat(附件管理): 完善附件管理功能

assets/webui/index.html

@@ -489,6 +489,18 @@
 				<div class="form-actions"><div id="credentialsStatus" class="form-status" role="status" aria-live="polite"></div><button id="credentialsCancel" class="button" type="button">取消</button><button class="button" type="submit">解锁</button></div>
 			</form>
 		</dialog>
+		<dialog id="attachmentDialog" class="form-dialog" aria-labelledby="attachmentTitle">
+			<form id="attachmentForm">
+				<h2 id="attachmentTitle" class="form-title">添加附件</h2>
+				<div id="attachmentFileRow" class="form-row"><label for="attachmentFile">文件</label><input id="attachmentFile" type="file" multiple required></div>
+				<div id="attachmentNameRow" class="form-row" hidden><label for="attachmentName">名称</label><input id="attachmentName" type="text" autocomplete="off" spellcheck="false"></div>
+				<div class="form-actions">
+					<div id="attachmentStatus" class="form-status" role="status"></div>
+					<button id="attachmentCancel" class="button" type="button">取消</button>
+					<button id="attachmentSubmit" class="button" type="submit">添加</button>
+				</div>
+			</form>
+		</dialog>
 		<dialog id="encryptionPanel" class="form-dialog" aria-labelledby="encryptionTitle">
 			<form id="encryptionForm">
 				<h2 id="encryptionTitle" class="form-title">加密文档</h2>
@@ -640,7 +652,7 @@
 					<dl class="meta-list"><div><dt>加密</dt><dd id="securityEncryption">未加密</dd></div><div id="securitySchemeRow" hidden><dt>方式</dt><dd id="securityScheme"></dd></div><div id="securityMethodRow" hidden><dt>算法</dt><dd id="securityMethod"></dd></div></dl>
 				</section>
 				<section id="attachmentPanel" class="attachment-panel" aria-labelledby="attachmentPanelTitle" hidden>
-					<div id="attachmentPanelTitle" class="panel-title">附件</div>
+					<div class="panel-row"><div id="attachmentPanelTitle" class="panel-title compact">附件</div><div class="panel-actions"><button id="attachmentAdd" class="small-button" type="button" title="添加附件" aria-haspopup="dialog" aria-controls="attachmentDialog" hidden>添加</button></div></div>
 					<div id="attachmentList" class="attachment-list"></div>
 				</section>
 				<section id="signaturePanel" class="signature-panel" aria-labelledby="signaturePanelTitle" hidden>

assets/webui/ofdgo.css

@@ -1904,6 +1904,7 @@ button.outline-link:hover {
 .empty-state[hidden],
 .editor-group > [hidden],
 .panel-row > [hidden],
+.panel-actions > [hidden],
 .meta-list > [hidden],
 .navigation-tabs[hidden],
 .page-selection-tools[hidden],
@@ -2549,6 +2550,26 @@ button.outline-link:hover {
 	gap: 8px;
 }
 
+.attachment-row {
+	display: flex;
+	align-items: center;
+	gap: 8px;
+}
+
+.attachment-row .attachment-item {
+	min-width: 0;
+	flex: 1;
+}
+
+.attachment-actions {
+	flex: 0 0 60px;
+	width: 60px;
+	border: 1px solid var(--line-strong);
+	background: #ffffff;
+	color: #1f2428;
+	cursor: pointer;
+}
+
 .attachment-item {
 	width: 100%;
 	padding: 4px 0;

assets/webui/ofdgo.js

@@ -481,6 +481,17 @@ const el = {
 	metaFonts: document.querySelector("#metaFonts"),
 	attachmentPanel: document.querySelector("#attachmentPanel"),
 	attachmentList: document.querySelector("#attachmentList"),
+	attachmentAdd: document.querySelector("#attachmentAdd"),
+	attachmentDialog: document.querySelector("#attachmentDialog"),
+	attachmentForm: document.querySelector("#attachmentForm"),
+	attachmentTitle: document.querySelector("#attachmentTitle"),
+	attachmentFile: document.querySelector("#attachmentFile"),
+	attachmentFileRow: document.querySelector("#attachmentFileRow"),
+	attachmentName: document.querySelector("#attachmentName"),
+	attachmentNameRow: document.querySelector("#attachmentNameRow"),
+	attachmentStatus: document.querySelector("#attachmentStatus"),
+	attachmentCancel: document.querySelector("#attachmentCancel"),
+	attachmentSubmit: document.querySelector("#attachmentSubmit"),
 	signaturePanel: document.querySelector("#signaturePanel"),
 	signatureSummary: document.querySelector("#signatureSummary"),
 	signatureList: document.querySelector("#signatureList"),
@@ -2916,6 +2927,8 @@ async function changeDocument(name, item, ...args) {
 				el.outlineStatus.textContent = err.message;
 			} else if (el.infoPanel.open) {
 				el.infoStatus.textContent = err.message;
+			} else if (el.attachmentDialog.open) {
+				el.attachmentStatus.textContent = err.message;
 			} else if (el.pagePanel.open) {
 				el.pageStatus.textContent = err.message;
 			} else if (el.paragraphPanel.open) {
@@ -4380,6 +4393,43 @@ function downloadAttachment(attachment) {
 	return downloadResource(attachment, "ofdgoExportAttachment", "附件");
 }
 
+editorClick(el.attachmentAdd, () => openAttachmentDialog("add"));
+el.attachmentCancel.addEventListener("click", () => el.attachmentDialog.close());
+el.attachmentDialog.addEventListener("cancel", event => { if (el.attachmentForm.inert) event.preventDefault(); });
+el.attachmentDialog.addEventListener("close", () => {
+	el.attachmentForm.reset();
+	delete el.attachmentDialog.attachmentEdit;
+});
+el.attachmentForm.addEventListener("submit", async event => {
+	event.preventDefault();
+	const edit = el.attachmentDialog.attachmentEdit;
+	if (!edit || edit.openSeq !== state.openSeq || !el.attachmentForm.reportValidity()) return;
+	const files = Array.from(el.attachmentFile.files);
+	const names = edit.action === "rename" ? [el.attachmentName.value] : files.map(file => file.name);
+	if (await changeDocument("ofdgoChangeAttachment", null, edit.action, edit.id, names, files)) {
+		el.attachmentDialog.close();
+		setStatus({add:"附件已添加", rename:"附件已改名", replace:"附件已替换"}[edit.action]);
+	}
+});
+
+function openAttachmentDialog(action, attachment) {
+	if (!state.editing || !state.ready || state.exporting || document.body.hasAttribute("aria-busy")) return;
+	const rename = action === "rename";
+	el.attachmentForm.reset();
+	el.attachmentDialog.attachmentEdit = {action, id: attachment?.id || "", openSeq: state.openSeq};
+	el.attachmentTitle.textContent = {add:"添加附件", rename:"附件改名", replace:"替换附件"}[action];
+	el.attachmentSubmit.textContent = {add:"添加", rename:"确定", replace:"替换"}[action];
+	el.attachmentFileRow.hidden = rename;
+	el.attachmentFile.required = !rename;
+	el.attachmentFile.multiple = action === "add";
+	el.attachmentNameRow.hidden = !rename;
+	el.attachmentName.required = rename;
+	el.attachmentName.value = attachment?.name || "";
+	el.attachmentStatus.textContent = "";
+	el.attachmentDialog.showModal();
+	(rename ? el.attachmentName : el.attachmentFile).focus();
+}
+
 async function saveDocumentImage(resource) {
 	if (!resource || !state.doc || document.body.hasAttribute("aria-busy")) return;
 	const seq = state.openSeq;
@@ -7241,7 +7291,7 @@ function renderMeta(keepDetails = false) {
 	el.pageTotal.textContent = String(doc.pageCount || 0);
 	if (keepDetails && doc.detailsPending) return;
 	el.metaSignatures.textContent = doc.detailsPending ? "正在检查签名" : doc.detailsError ? "读取失败" : String(doc.signatureCount || 0);
-	renderMetaContent(el.attachmentList, [doc.attachments, doc.attachmentError], renderAttachments);
+	renderMetaContent(el.attachmentList, [doc.attachments, doc.attachmentError, state.editing], renderAttachments);
 	renderMetaContent(el.signatureList, [doc.signatures, doc.signatureError], renderSignatures);
 	renderMetaContent(el.docFontList, doc.fonts || [], renderDocumentFonts);
 	refreshEditorFonts();
@@ -7256,8 +7306,9 @@ function renderMetaContent(node, value, render) {
 }
 
 function renderAttachments() {
-	const attachments = state.doc?.attachments || [];
-	el.attachmentPanel.hidden = !attachments.length && !state.doc?.attachmentError;
+	const attachments = (state.doc?.attachments || []).filter(item => state.editing || item.visible !== false);
+	el.attachmentPanel.hidden = !state.doc || !state.editing && !attachments.length && !state.doc.attachmentError;
+	el.attachmentAdd.hidden = !state.editing;
 	el.attachmentList.replaceChildren();
 	if (state.doc?.attachmentError) {
 		const error = document.createElement("div");
@@ -7267,17 +7318,25 @@ function renderAttachments() {
 		el.attachmentList.append(error);
 		return;
 	}
+	if (!attachments.length) {
+		const empty = document.createElement("div");
+		empty.className = "attachment-detail";
+		empty.textContent = "暂无附件";
+		el.attachmentList.append(empty);
+	}
 	for (const attachment of attachments) {
+		const row = document.createElement("div");
+		row.className = "attachment-row";
 		const item = document.createElement("button");
 		item.type = "button";
 		item.className = "attachment-item";
-		item.title = `下载 ${attachment.fileName}`;
-		item.setAttribute("aria-label", `下载 ${attachment.name}`);
+		item.title = `另存 ${attachment.fileName}`;
+		item.setAttribute("aria-label", `另存 ${attachment.name}`);
 		const name = document.createElement("span");
 		name.className = "attachment-name";
 		name.textContent = attachment.name;
 		item.append(name);
-		const detail = [attachment.format, attachment.size == null ? "" : formatBytes(attachment.size * 1024)].filter(Boolean).join(" · ");
+		const detail = [attachment.format, attachment.size == null ? "" : formatBytes(attachment.size * 1024), attachment.visible === false ? "隐藏" : ""].filter(Boolean).join(" · ");
 		if (detail) {
 			const meta = document.createElement("span");
 			meta.className = "attachment-detail";
@@ -7285,7 +7344,30 @@ function renderAttachments() {
 			item.append(meta);
 		}
 		item.addEventListener("click", () => downloadAttachment(attachment));
-		el.attachmentList.append(item);
+		row.append(item);
+		if (state.editing) {
+			const actions = document.createElement("select");
+			actions.className = "small-button attachment-actions";
+			actions.title = "附件操作";
+			actions.setAttribute("aria-label", `${attachment.name} 操作`);
+			for (const [value, text] of [["", "操作"], ["rename", "改名"], ["replace", "替换"], ["delete", "删除"]]) {
+				const option = document.createElement("option");
+				option.value = value;
+				option.textContent = text;
+				actions.append(option);
+			}
+			actions.addEventListener("change", async () => {
+				const action = actions.value;
+				actions.value = "";
+				if ((canvasEditor.nudge || canvasEditor.nudgeCommit) && !await canvasEditor.commitNudge()) return;
+				if (!await canvasEditor.commitText() || !await canvasEditor.commitCrop()) return;
+				if (action === "delete") {
+					if (window.confirm(`删除附件“${attachment.name}”？`) && await changeDocument("ofdgoChangeAttachment", null, action, attachment.id, [], [])) setStatus("附件已删除");
+				} else if (action) openAttachmentDialog(action, attachment);
+			});
+			row.append(actions);
+		}
+		el.attachmentList.append(row);
 	}
 }
 
@@ -8005,6 +8087,8 @@ function updateFitSpace() {
 
 function updateControls() {
 	renderSecurity();
+	el.attachmentAdd.disabled = !state.editing || !state.ready || state.exporting;
+	renderMetaContent(el.attachmentList, [state.doc?.attachments, state.doc?.attachmentError, state.editing], renderAttachments);
 	const hasDoc = Boolean(state.doc);
 	updateDisplayControls();
 	updateEditorTools();
@@ -8217,6 +8301,8 @@ function setBusy(busy, text = "", percent = 0, status = "") {
 	el.pageForm.inert = busy;
 	el.paragraphForm.inert = busy;
 	el.infoForm.inert = busy;
+	el.attachmentForm.inert = busy;
+	el.attachmentPanel.inert = busy;
 	el.annotationForm.inert = busy;
 	el.importForm.inert = busy && !state.importing;
 	for (const input of [el.importFile, el.importRange, el.importPosition, el.importOutlines]) input.disabled = busy;

assets/webui/ofdgo_wasm.js

@@ -173,6 +173,13 @@ async function handleMessage({ id, name, args }) {
 	const password = converting ? args[2] : name === "ofdgoSetEncryption" ? args[0]?.password : name === "ofdgoOpen" ? args[3]?.password : name === "ofdgoLoadImport" ? args[1]?.password : null;
 	try {
 		signal?.throwIfAborted();
+		if (name === "ofdgoChangeAttachment" && (args[0] === "add" || args[0] === "replace")) {
+			const files = args[3], reader = new FileReaderSync();
+			args[3] = index => {
+				try { return { bytes: new Uint8Array(reader.readAsArrayBuffer(files[index])) }; }
+				catch (err) { return { error: err.message }; }
+			};
+		}
 		if (name === "ofdgoImportImages") {
 			const files = args[0], reader = new FileReaderSync();
 			args[0] = files.map(file => file.name);

internal/webui/wasm.go

@@ -30,7 +30,6 @@ import (
 	"io"
 	"io/fs"
 	"math"
-	"path"
 	"reflect"
 	"slices"
 	"strconv"
@@ -212,6 +211,7 @@ func RunWASM() {
 	registerAsyncCallback("ofdgoImportImages", importImages)
 	registerCallback("ofdgoEditDocument", editDocument)
 	registerCallback("ofdgoUpdateInfo", updateInfo)
+	registerCallback("ofdgoChangeAttachment", changeAttachment)
 	registerCallback("ofdgoChangePage", changePage)
 	registerCallback("ofdgoBatchPages", batchPages)
 	registerCallback("ofdgoChangeOutline", changeOutline)
@@ -801,7 +801,7 @@ func renderPage(args []js.Value) (any, error) {
 			return nil, err
 		}
 		for _, attachment := range attachments {
-			attachmentNames[attachment.ID] = path.Base(currentSession.Reader.ResPath(attachment.FileLoc))
+			attachmentNames[attachment.ID] = attachment.FileName()
 		}
 		break
 	}
@@ -3535,6 +3535,45 @@ func updateInfo(args []js.Value) (any, error) {
 	})
 }
 
+// changeAttachment 编辑附件，逐个读取文件并复用库层事务和历史
+// 入参: args 操作、附件标识、名称列表、文件读取回调
+// 返回: any 编辑状态, error 错误信息
+func changeAttachment(args []js.Value) (any, error) {
+	return changeObjects(func() error {
+		action, id := args[0].String(), args[1].String()
+		switch action {
+		case "rename":
+			return currentEditor.RenameAttachment(id, args[2].Index(0).String())
+		case "delete":
+			return currentEditor.DeleteAttachment(id)
+		case "add", "replace":
+			count := args[2].Length()
+			if count == 0 || action == "replace" && count != 1 {
+				return fmt.Errorf("请选择附件")
+			}
+			for i := range count {
+				result := args[3].Invoke(i)
+				if message := result.Get("error"); message.Type() == js.TypeString {
+					return fmt.Errorf("%s", message.String())
+				}
+				data, err := bytesFromJS(result.Get("bytes"))
+				if err != nil {
+					return err
+				}
+				if action == "replace" {
+					return currentEditor.ReplaceAttachment(id, data)
+				}
+				if _, err := currentEditor.AddAttachment(args[2].Index(i).String(), data); err != nil {
+					return err
+				}
+			}
+			return nil
+		default:
+			return fmt.Errorf("unsupported attachment action %q", action)
+		}
+	})
+}
+
 // editDocument 将已打开文档接入编辑器，沿用页面、资源及字体配置
 // 入参: args 当前页索引，省略时使用首页
 // 返回: any 编辑状态, error 错误信息

internal/webui/webui.go

@@ -18,7 +18,6 @@ import (
 	"bytes"
 	"fmt"
 	"io"
-	"path"
 	"reflect"
 	"slices"
 	"strings"
@@ -111,13 +110,14 @@ type DocumentDetails struct {
 // OutlineInfo 目录节点信息
 type OutlineInfo = ofdgo.OutlineInfo
 
-// AttachmentInfo 可见附件信息，Size单位为KB
+// AttachmentInfo 附件信息，Size单位为KB
 type AttachmentInfo struct {
 	ID       string   `json:"id"`
 	Name     string   `json:"name"`
 	Format   string   `json:"format,omitempty"`
 	Size     *float64 `json:"size,omitempty"`
 	FileName string   `json:"fileName"`
+	Visible  bool     `json:"visible"`
 }
 
 // PageInfo 页面信息
@@ -419,13 +419,14 @@ func (s *Session) Details() DocumentDetails {
 	info := DocumentDetails{}
 	if attachments, err := s.Reader.Attachments(); err == nil {
 		for _, attachment := range attachments {
-			if attachment.Visible {
+			if attachment.Visible || s.editing {
 				info.Attachments = append(info.Attachments, AttachmentInfo{
 					ID:       attachment.ID,
 					Name:     attachment.Name,
 					Format:   attachment.Format,
 					Size:     attachment.Size,
-					FileName: path.Base(s.Reader.ResPath(attachment.FileLoc)),
+					FileName: attachment.FileName(),
+					Visible:  attachment.Visible,
 				})
 			}
 		}

ofdgo_doc.go

@@ -14,7 +14,11 @@
 
 package ofdgo
 
-import "encoding/xml"
+import (
+	"encoding/xml"
+	"path"
+	"strings"
+)
 
 // Document 文档结构
 type Document struct {
@@ -226,6 +230,25 @@ func (doc *Document) UnmarshalXML(d *xml.Decoder, start xml.StartElement) error
 	return nil
 }
 
+// FileName 获取另存文件名，优先使用带扩展名的显示名称，剔除目录及文件名非法字符
+// 返回: string 文件名
+func (a Attachment) FileName() string {
+	name := path.Base(strings.ReplaceAll(a.Name, "\\", "/"))
+	file := path.Base(strings.ReplaceAll(a.FileLoc, "\\", "/"))
+	if name == "." || name == "/" || path.Ext(name) == "" && path.Ext(file) != "" {
+		name = file
+	}
+	if name == "." || name == "/" {
+		name = "attachment"
+	}
+	return strings.Map(func(r rune) rune {
+		if r < 32 || strings.ContainsRune(`<>:"/\|?*`, r) {
+			return '_'
+		}
+		return r
+	}, name)
+}
+
 // UnmarshalXML 解析附件并应用默认值
 // 入参: d XML解码器, start 起始节点
 // 返回: error 错误信息

ofdgo_editor_attachment.go

@@ -18,9 +18,9 @@ import (
 	"bytes"
 	"encoding/xml"
 	"fmt"
+	"maps"
 	"path"
 	"strings"
-	"time"
 	"unicode/utf8"
 )
 
@@ -130,7 +130,7 @@ func (e *Editor) RenameAttachment(id, name string) error {
 	})
 }
 
-// ReplaceAttachment 替换附件内容，使用独立资源避免影响共享引用，保留名称和格式
+// ReplaceAttachment 替换附件内容，使用独立资源避免影响共享引用，保留名称和格式，不新增日期
 // 入参: id 附件标识, data 文件数据，调用后可复用
 // 返回: error 附件结构或提交错误
 func (e *Editor) ReplaceAttachment(id string, data []byte) error {
@@ -150,23 +150,28 @@ func (e *Editor) ReplaceAttachment(id string, data []byte) error {
 		} else {
 			fragment = editorPatchXML(fragment, []editorXMLPatch{{node.open, node.open, editorXMLText("FileLoc", "/"+file)}})
 		}
-		for _, attr := range []struct{ name, value string }{
-			{"Size", ofdNumber(float64(len(data)) / 1024)}, {"ModDate", time.Now().UTC().Format(time.RFC3339)},
-		} {
 		root, err := parseEditorXML(fragment)
 		if err != nil {
 			return nil, err
 		}
-			fragment, err = editorXMLAttribute(fragment, root, attr.name, attr.value)
+		fragment, err = editorXMLAttribute(fragment, root, "Size", ofdNumber(float64(len(data))/1024))
 		if err != nil {
 			return nil, err
 		}
-		}
 		parts[file] = bytes.Clone(data)
 		return fragment, nil
 	})
 }
 
+// DeleteAttachment 删除附件声明，保存时清理可确认无引用的内容，支持撤销和重做
+// 入参: id 附件标识
+// 返回: error 附件结构或提交错误
+func (e *Editor) DeleteAttachment(id string) error {
+	return e.editAttachment(id, func([]byte, *editorXML, map[string][]byte) ([]byte, error) {
+		return nil, nil
+	})
+}
+
 // editAttachment 对单个附件片段执行原子编辑，兼容独立附件文件及内联声明
 // 入参: id 附件标识, change 片段及资源修改函数
 // 返回: error 结构、标识或提交错误
@@ -194,7 +199,7 @@ func (e *Editor) editAttachment(id string, change func([]byte, *editorXML, map[s
 	var found *editorXML
 	if root != nil {
 		for _, child := range root.children {
-			if child.name.Local == "Attachment" && child.attr("ID") == id {
+			if packageOFDNode(child, "Attachment") && child.attr("ID") == id {
 				if found != nil {
 					return fmt.Errorf("duplicate attachment ID: %s", id)
 				}
@@ -222,7 +227,21 @@ func (e *Editor) editAttachment(id string, change func([]byte, *editorXML, map[s
 		return nil
 	}
 	parts[name] = editorPatchXML(data, []editorXMLPatch{{found.start, found.end, updated}})
-	return e.commitAnnotationParts(base, parts)
+	if err := e.commitAnnotationParts(base, parts); err != nil {
+		return err
+	}
+	if file := node.child("FileLoc"); file != nil {
+		location := strings.TrimSpace(editorImportText(fragment, file))
+		if location != "" {
+			retired := maps.Clone(base.retiredAttachments)
+			if retired == nil {
+				retired = make(map[string]bool)
+			}
+			retired[strings.ToLower(cleanPackagePath(base.reader.ResPath(location)))] = true
+			e.source.retiredAttachments = retired
+		}
+	}
+	return nil
 }
 
 // validateAttachmentName 校验非空附件名及XML可无损表示的Unicode字符

ofdgo_editor_open.go

@@ -41,6 +41,7 @@ type editorSource struct {
 	idsReady           bool
 	annotationStates   map[string]map[string]editorCompositeState
 	annotationPages    map[string]bool
+	retiredAttachments map[string]bool
 }
 
 // editorObjectOrigin 保留原对象的XML语义，供复制和局部更新复用

ofdgo_editor_resources.go

@@ -34,7 +34,7 @@ type editorResourceRefs struct {
 	fonts map[string]*editorFontUsage
 }
 
-// compactSourceResources 在保存副本中清理无引用字体和图片，并裁剪可完整确认用字的原有字体
+// compactSourceResources 在保存副本中清理无引用字体、图片和已删除附件，并裁剪可完整确认用字的原有字体
 // 按GB/T33190-2016附录A检查标识和路径引用，包括模板、注释、底纹、裁剪、版本和其他文档
 // 全包检查保留孤立XML中的引用；未知命名空间、扩展数据或无法解析的XML使本次清理跳过
 // 入参: parts 已修改和新增的包内条目, progress 保存进度回调
@@ -89,7 +89,10 @@ func (e *Editor) compactSourceResources(parts map[string][]byte, progress editor
 	if err := progress.report("references", len(ordered), len(ordered)); err != nil {
 		return nil, err
 	}
-	removed := make(map[string]bool)
+	removed := maps.Clone(e.source.retiredAttachments)
+	if removed == nil {
+		removed = make(map[string]bool)
+	}
 	usedFiles := maps.Clone(refs.files)
 	updates := make(map[string][]byte)
 	fontFiles := make(map[string]*editorFontUsage)