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xiaoqidun committed
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@@ -45,6 +45,79 @@ type exportWriter struct {
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write js.Value
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}
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// apiResult 浏览器接口返回结果
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type apiResult struct {
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OK bool `json:"ok"`
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Code string `json:"code,omitempty"`
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Error string `json:"error,omitempty"`
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Data any `json:"data,omitempty"`
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MissingGlyphs *ofdgo.MissingGlyphError `json:"missingGlyphs,omitempty"`
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ReasonCode ofdgo.EditReason `json:"reasonCode,omitempty"`
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}
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// editorClipboard 当前编辑文档中的对象快照与剪贴板标识
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type editorClipboard struct {
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token string
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objects []ofdgo.GraphicObject
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composite *ofdgo.CompositeSelection
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annotations *ofdgo.AnnotationSelection
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}
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// editorInfo 编辑文档信息与操作状态
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type editorInfo struct {
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DocumentInfo
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Revision uint64 `json:"revision"`
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CanUndo bool `json:"canUndo"`
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CanRedo bool `json:"canRedo"`
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PageCapabilities []uint `json:"pageCapabilities"`
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EditWarnings []string `json:"editWarnings,omitempty"`
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}
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// editorPageInfo 页面操作结果与目标页面
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type editorPageInfo struct {
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editorInfo
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PageIndex int `json:"pageIndex"`
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}
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// editorSelectionInfo 对象复制结果及新选区
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type editorSelectionInfo struct {
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editorInfo
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SelectedIDs []string `json:"selectedIDs"`
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}
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// editorOutlineInfo 目录操作后的位置
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type editorOutlineInfo struct {
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editorInfo
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OutlinePath []int `json:"outlinePath"`
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}
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// annotationOptions 保存注解面板的输入，资源字节单独传输
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type annotationOptions struct {
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Kind, ID, Text, Old, Creator, Pages, URI, Color string
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Base string
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X, Y, Width, Height, Size, Angle float64
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Alpha int
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Tile bool
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Keep bool
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Target int
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Area *ofdgo.Box
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}
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// currentSession 当前WebUI文档会话
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var currentSession *Session
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// currentEditor 当前编辑文档
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var currentEditor *ofdgo.Editor
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// pendingImport 待插页文档，仅保留文件数据与索引，不创建渲染会话
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var pendingImport *ofdgo.Reader
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// copiedObjects 当前对象剪贴板，不保存字体或图片的重复数据
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var copiedObjects *editorClipboard
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// copiedStyle 当前文档中的独立样式快照
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var copiedStyle *ofdgo.GraphicObject
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// Write 将数据块交给浏览器保存
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// 入参: data 导出数据
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// 返回: int 写入长度, error 错误信息
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@@ -80,25 +153,6 @@ func awaitExport(fn js.Value, args ...any) error {
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return <-done
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}
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// currentSession 当前WebUI文档会话
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var currentSession *Session
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// pendingImport 待插页文档，仅保留文件数据与索引，不创建渲染会话
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var pendingImport *ofdgo.Reader
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// copiedStyle 当前文档中的独立样式快照
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var copiedStyle *ofdgo.GraphicObject
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// apiResult 浏览器接口返回结果
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type apiResult struct {
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OK bool `json:"ok"`
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Code string `json:"code,omitempty"`
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Error string `json:"error,omitempty"`
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Data any `json:"data,omitempty"`
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MissingGlyphs *ofdgo.MissingGlyphError `json:"missingGlyphs,omitempty"`
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ReasonCode ofdgo.EditReason `json:"reasonCode,omitempty"`
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}
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// RunWASM 注册浏览器WASM接口并阻塞运行
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func RunWASM() {
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registerCallback("ofdgoOpen", openDocument)
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@@ -297,45 +351,6 @@ func openDocument(args []js.Value) (any, error) {
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return currentSession.Summary(), nil
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}
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// credentialsFromJS 解析本次打开的口令或本机证书私钥
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// 入参: value 解锁表单数据
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// 返回: ofdgo.Credentials 会话凭据, error 错误信息
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func credentialsFromJS(value js.Value) (ofdgo.Credentials, error) {
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credentials := ofdgo.Credentials{UserName: value.Get("userName").String()}
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if keyValue := value.Get("key"); !keyValue.IsNull() && !keyValue.IsUndefined() {
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key, err := bytesFromJS(keyValue)
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if err != nil {
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return credentials, err
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}
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defer clear(key)
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certificate, err := bytesFromJS(value.Get("certificate"))
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if err != nil {
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return credentials, err
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}
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var password []byte
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if field := value.Get("keyPassword"); !field.IsUndefined() && !field.IsNull() {
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password, err = bytesFromJS(field)
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if err != nil {
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return credentials, err
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}
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defer clear(password)
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}
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signer, certificate, err := ofdgo.ParseSignatureIdentity(certificate, key, password)
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if err != nil {
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return credentials, ofdgo.ErrInvalidCredentials
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}
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decrypter, ok := signer.(crypto.Decrypter)
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if !ok {
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return credentials, ofdgo.ErrInvalidCredentials
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}
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credentials.Certificate, credentials.Decrypter = certificate, decrypter
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return credentials, nil
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}
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var err error
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credentials.Password, err = bytesFromJS(value.Get("password"))
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return credentials, err
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}
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// configureDocument 更新当前会话的字体和注解设置
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// 入参: args 浏览器参数
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// 返回: any 文档信息, error 错误信息
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@@ -378,70 +393,6 @@ func documentInfo(args []js.Value) (any, error) {
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return currentSession.Info(), nil
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}
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// securityFilesFromJS 读取会话内的本机证据文件
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// 入参: value 二进制数组列表
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// 返回: [][]byte 文件内容, error 错误信息
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func securityFilesFromJS(value js.Value) ([][]byte, error) {
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if value.IsUndefined() || value.IsNull() {
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return nil, nil
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}
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files := make([][]byte, value.Length())
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for i := range files {
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var err error
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files[i], err = bytesFromJS(value.Index(i))
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if err != nil {
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return nil, err
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}
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}
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return files, nil
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}
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// verifySignatures 按本机信任锚和离线证据重新验签，不设置联网回调
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// 入参: args 信任根、辅助证书、时间戳及撤销证据
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// 返回: any 分项报告, error 错误信息
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func verifySignatures(args []js.Value) (any, error) {
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if currentSession == nil || len(args) == 0 {
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return nil, fmt.Errorf("missing signature verification arguments")
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}
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input := args[0]
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files := make(map[string][][]byte)
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for _, name := range []string{"roots", "certificates", "timestampRoots", "tokens", "crls", "ocsp"} {
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data, err := securityFilesFromJS(input.Get(name))
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if err != nil {
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return nil, err
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}
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files[name] = data
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}
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now := time.Now()
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policy := ofdgo.SignaturePolicy{RejectWeakAlgorithms: true, RequireDocumentCoverage: true,
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RequireTimestamp: input.Get("requireTimestamp").Bool(), RequireRevocation: input.Get("requireRevocation").Bool()}
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options := []ofdgo.SignatureVerifyOption{
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ofdgo.WithSignatureVerifyTime(now), ofdgo.WithSignaturePolicy(policy),
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ofdgo.WithSignatureTrustCerts(files["roots"]...), ofdgo.WithSignatureCerts(files["certificates"]...),
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}
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if policy.RequireTimestamp || len(files["timestampRoots"])+len(files["tokens"]) > 0 {
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options = append(options, ofdgo.WithSignatureTimestamp(ofdgo.SignatureTimestampOptions{
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TrustCerts: files["timestampRoots"], Certificates: files["certificates"], Tokens: files["tokens"], Required: policy.RequireTimestamp, VerifyTime: &now,
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}))
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}
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if policy.RequireRevocation || len(files["crls"])+len(files["ocsp"]) > 0 {
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options = append(options, ofdgo.WithSignatureRevocation(ofdgo.SignatureRevocationOptions{
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SignatureRevocationEvidence: ofdgo.SignatureRevocationEvidence{CRLs: files["crls"], OCSPResponses: files["ocsp"]},
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Certificates: append(files["certificates"], files["roots"]...), Required: policy.RequireRevocation, VerifyTime: &now,
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}))
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}
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reports, err := currentSession.Reader.VerifySignatures(options...)
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if err != nil {
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return nil, err
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}
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infos := make([]SignatureInfo, len(reports))
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for i, report := range reports {
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infos[i] = signatureInfo(report)
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}
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currentSession.signatures, currentSession.signatureError, currentSession.signaturesRead = infos, nil, true
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return map[string]any{"signatures": infos, "signatureCount": len(infos), "signatureError": ""}, nil
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}
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// exportAttachment 分块导出附件
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// 入参: args 浏览器参数
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// 返回: any 附件数据, error 错误信息
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@@ -820,42 +771,6 @@ func encodeResult(result apiResult) string {
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return string(data)
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}
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// currentEditor 当前编辑文档
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var currentEditor *ofdgo.Editor
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// editorClipboard 当前编辑文档中的对象快照与剪贴板标识
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type editorClipboard struct {
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token string
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objects []ofdgo.GraphicObject
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composite *ofdgo.CompositeSelection
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annotations *ofdgo.AnnotationSelection
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}
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// copiedObjects 当前对象剪贴板，不保存字体或图片的重复数据
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var copiedObjects *editorClipboard
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// editorInfo 编辑文档信息与操作状态
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type editorInfo struct {
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DocumentInfo
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Revision uint64 `json:"revision"`
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CanUndo bool `json:"canUndo"`
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CanRedo bool `json:"canRedo"`
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PageCapabilities []uint `json:"pageCapabilities"`
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EditWarnings []string `json:"editWarnings,omitempty"`
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}
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// editorPageInfo 页面操作结果与目标页面
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type editorPageInfo struct {
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editorInfo
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PageIndex int `json:"pageIndex"`
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}
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// editorSelectionInfo 对象复制结果及新选区
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type editorSelectionInfo struct {
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editorInfo
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SelectedIDs []string `json:"selectedIDs"`
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}
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// editorSummary 获取当前编辑文档状态
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// 返回: editorInfo 文档信息
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func editorSummary() editorInfo {
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@@ -1119,18 +1034,6 @@ func changeAnnotations(args []js.Value) (any, error) {
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})
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}
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// annotationOptions 保存注解面板的输入，资源字节单独传输
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type annotationOptions struct {
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Kind, ID, Text, Old, Creator, Pages, URI, Color string
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Base string
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X, Y, Width, Height, Size, Angle float64
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Alpha int
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Tile bool
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Keep bool
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Target int
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Area *ofdgo.Box
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}
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// readAnnotation 获取编辑面板所需的注解内容，不修改文件
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// 入参: args 页面索引与注解标识
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// 返回: any 面板数据, error 错误信息
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@@ -2277,6 +2180,233 @@ func previewText(args []js.Value) (any, error) {
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return map[string]any{"runs": runs, "scale": scale, "weight": text.Weight, "italic": text.Italic}, nil
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}
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// updateText 修改文字，null内容保留定位且允许替换字体，null字体数据和颜色沿用对象属性
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// 入参: args 页码、对象标识、内容、字体数据、字号和颜色
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// 返回: any 文档信息, error 错误信息
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func updateText(args []js.Value) (any, error) {
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if currentEditor == nil {
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return nil, fmt.Errorf("no document is being edited")
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}
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page, id := args[0].Int(), args[1].String()
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object, err := currentEditor.Object(page, id)
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if err != nil {
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return nil, err
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}
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if object.Type != "TextObject" {
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return nil, fmt.Errorf("object %q is not text", id)
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}
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if !args[3].IsNull() {
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data, err := bytesFromJS(args[3])
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if err != nil {
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return nil, err
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}
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value := object.TextObject.Text()
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if !args[2].IsNull() {
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value = args[2].String()
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}
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if err := checkFontGlyphs(data, value); err != nil {
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return nil, err
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}
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object.TextObject.Font, err = currentEditor.AddFont(FontFile{Data: data}, 0)
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if err != nil {
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return nil, err
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}
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}
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if !args[2].IsNull() {
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if args[4].Float() == object.TextObject.Size {
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style := ofdgo.TextStyle{Font: object.TextObject.Font}
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if !args[5].IsNull() {
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var fill ofdgo.FillColor
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if err := setEditorColor(&fill, args[5].String()); err != nil {
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return nil, err
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}
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style.Color = fill.Value
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}
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revision := currentEditor.Revision()
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if err := currentEditor.UpdateTextContent(page, id, args[2].String(), style); err != nil {
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return nil, err
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}
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if currentEditor.Revision() == revision {
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return editorSummary(), nil
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}
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return previewEditor(currentEditor, currentSession.Renderer.RenderAnnotations)
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}
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object.TextObject.Size = args[4].Float()
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_, layout := object.TextObject.TextLayout()
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if err := currentEditor.LayoutText(&object.TextObject, args[2].String(), layout); err != nil {
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return nil, err
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}
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}
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if !args[5].IsNull() {
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if err := setTextColor(&object.TextObject, args[5].String()); err != nil {
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return nil, err
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}
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}
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revision := currentEditor.Revision()
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if err := currentEditor.UpdateObject(page, id, object); err != nil {
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return nil, err
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}
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if currentEditor.Revision() == revision {
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return editorSummary(), nil
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}
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return previewEditor(currentEditor, currentSession.Renderer.RenderAnnotations)
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}
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// checkFontGlyphs 只检查候选字体，不注册资源或改变文档
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// 入参: data 字体数据, value 待替换文字
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// 返回: error 缺字或字体格式错误
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func checkFontGlyphs(data []byte, value string) error {
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missing, err := (FontFile{Data: data}).MissingGlyphs(0, value)
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if err != nil {
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return err
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}
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if missing != "" {
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return &ofdgo.MissingGlyphError{Characters: missing}
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}
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return nil
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}
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// checkTextFont 为画布输入预检候选字体
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// 入参: args 字体数据和输入文字
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// 返回: any 空结果, error 缺字或字体格式错误
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func checkTextFont(args []js.Value) (any, error) {
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data, err := bytesFromJS(args[0])
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if err != nil {
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return nil, err
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}
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return nil, checkFontGlyphs(data, args[1].String())
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}
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// styleText 批量修改文字样式，字体预检通过后交由库原子提交
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// 入参: args 页码、对象标识、字体数据、字号和颜色，null字体与颜色保持原值
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// 返回: any 文档信息, error 错误信息
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func styleText(args []js.Value) (any, error) {
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return changeObjects(func() error {
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page, ids := args[0].Int(), stringsFromJS(args[1])
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style := ofdgo.TextStyle{Size: args[3].Float()}
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if !args[2].IsNull() {
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data, err := bytesFromJS(args[2])
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if err != nil {
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return err
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}
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var value strings.Builder
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for _, id := range ids {
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object, err := currentEditor.Object(page, id)
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if err != nil {
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return err
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}
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if object.Type != "TextObject" {
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return fmt.Errorf("object %q is not text", id)
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}
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value.WriteString(object.TextObject.Text())
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}
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if err := checkFontGlyphs(data, value.String()); err != nil {
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return err
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}
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style.Font, err = currentEditor.AddFont(FontFile{Data: data}, 0)
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if err != nil {
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return err
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}
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}
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if !args[4].IsNull() {
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var color ofdgo.FillColor
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if err := setEditorColor(&color, args[4].String()); err != nil {
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return err
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}
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style.Color = color.Value
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}
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return currentEditor.StyleText(page, ids, style)
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})
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}
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// setTextColor 将浏览器RGB色值写入文字对象，保留颜色透明度
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// 入参: object 文字对象, value 十六进制色值
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// 返回: error 错误信息
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func setTextColor(object *ofdgo.TextObject, value string) error {
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if object.FillColor == nil {
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object.FillColor = &ofdgo.FillColor{}
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}
|
||||
return setEditorColor(object.FillColor, value)
|
||||
}
|
||||
|
||||
// insertText 使用选定字体创建文字对象
|
||||
// 入参: args 页码、内容、字体数据、横纵坐标、字号、颜色、框宽、折行、对齐、行距、字距及左右和首行缩进
|
||||
// 返回: any 文档信息, error 错误信息
|
||||
func insertText(args []js.Value) (any, error) {
|
||||
if currentEditor == nil {
|
||||
return nil, fmt.Errorf("no document is being edited")
|
||||
}
|
||||
data, err := bytesFromJS(args[2])
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
fontID, err := currentEditor.AddFont(FontFile{Data: data}, 0)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
page := args[0].Int()
|
||||
content, err := currentSession.pageContent(page)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
box, err := currentSession.pageBox(page, content)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
x, y := args[3].Float(), args[4].Float()
|
||||
width := args[7].Float()
|
||||
if width == 0 {
|
||||
width = 80
|
||||
}
|
||||
box = ofdgo.Box{X: x, Y: y, W: math.Min(width, box.W-x), H: box.H - y}
|
||||
object := ofdgo.GraphicObject{Type: "TextObject", TextObject: ofdgo.TextObject{
|
||||
Boundary: fmt.Sprintf("%g %g %g %g", box.X, box.Y, box.W, box.H),
|
||||
Font: fontID, Size: args[5].Float(),
|
||||
}}
|
||||
if err := currentEditor.LayoutText(&object.TextObject, args[1].String(), ofdgo.TextLayout{Wrap: args[8].Bool(), Align: args[9].String(), LineHeight: args[10].Float(), LetterSpacing: args[11].Float(), LeftIndent: args[12].Float(), RightIndent: args[13].Float(), FirstLineIndent: args[14].Float()}); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := setTextColor(&object.TextObject, args[6].String()); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return insertEditorObject(page, object, args[15:])
|
||||
}
|
||||
|
||||
// layoutText 调整文字框和段落排版，保留软换行前的原文
|
||||
// 入参: args 页码、对象标识、本地左侧偏移、宽度、折行、对齐、行距、字距及左右和首行缩进
|
||||
// 返回: any 文档信息, error 错误信息
|
||||
func layoutText(args []js.Value) (any, error) {
|
||||
if currentEditor == nil {
|
||||
return nil, fmt.Errorf("no document is being edited")
|
||||
}
|
||||
page, id := args[0].Int(), args[1].String()
|
||||
object, err := currentEditor.Object(page, id)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if object.Type != "TextObject" {
|
||||
return nil, fmt.Errorf("object is not text")
|
||||
}
|
||||
if !args[2].IsNull() {
|
||||
object.TextObject, err = object.TextObject.ResizeTextFrame(args[2].Float(), args[3].Float())
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
value, _ := object.TextObject.TextLayout()
|
||||
if err := currentEditor.LayoutText(&object.TextObject, value, ofdgo.TextLayout{Wrap: args[4].Bool(), Align: args[5].String(), LineHeight: args[6].Float(), LetterSpacing: args[7].Float(), LeftIndent: args[8].Float(), RightIndent: args[9].Float(), FirstLineIndent: args[10].Float()}); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
revision := currentEditor.Revision()
|
||||
if err := currentEditor.UpdateObject(page, id, object); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if currentEditor.Revision() == revision {
|
||||
return editorSummary(), nil
|
||||
}
|
||||
return previewEditor(currentEditor, currentSession.Renderer.RenderAnnotations)
|
||||
}
|
||||
|
||||
// replaceImage 替换图片资源并更新预览
|
||||
// 入参: args 页码、对象标识、图片数据和适应方式
|
||||
// 返回: any 文档信息, error 错误信息
|
||||
@@ -2651,12 +2781,6 @@ func batchPages(args []js.Value) (any, error) {
|
||||
return editorPageInfo{info.(editorInfo), index}, nil
|
||||
}
|
||||
|
||||
// editorOutlineInfo 目录操作后的位置
|
||||
type editorOutlineInfo struct {
|
||||
editorInfo
|
||||
OutlinePath []int `json:"outlinePath"`
|
||||
}
|
||||
|
||||
// indexesFromJS 读取整数索引列表
|
||||
// 入参: value JavaScript数组
|
||||
// 返回: []int 索引列表
|
||||
@@ -3007,155 +3131,6 @@ func previewEditor(editor *ofdgo.Editor, annotations bool) (editorInfo, error) {
|
||||
return editorSummary(), nil
|
||||
}
|
||||
|
||||
// updateText 修改文字，null内容保留定位且允许替换字体，null字体数据和颜色沿用对象属性
|
||||
// 入参: args 页码、对象标识、内容、字体数据、字号和颜色
|
||||
// 返回: any 文档信息, error 错误信息
|
||||
func updateText(args []js.Value) (any, error) {
|
||||
if currentEditor == nil {
|
||||
return nil, fmt.Errorf("no document is being edited")
|
||||
}
|
||||
page, id := args[0].Int(), args[1].String()
|
||||
object, err := currentEditor.Object(page, id)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if object.Type != "TextObject" {
|
||||
return nil, fmt.Errorf("object %q is not text", id)
|
||||
}
|
||||
if !args[3].IsNull() {
|
||||
data, err := bytesFromJS(args[3])
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
value := object.TextObject.Text()
|
||||
if !args[2].IsNull() {
|
||||
value = args[2].String()
|
||||
}
|
||||
if err := checkFontGlyphs(data, value); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
object.TextObject.Font, err = currentEditor.AddFont(FontFile{Data: data}, 0)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
if !args[2].IsNull() {
|
||||
if args[4].Float() == object.TextObject.Size {
|
||||
style := ofdgo.TextStyle{Font: object.TextObject.Font}
|
||||
if !args[5].IsNull() {
|
||||
var fill ofdgo.FillColor
|
||||
if err := setEditorColor(&fill, args[5].String()); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
style.Color = fill.Value
|
||||
}
|
||||
revision := currentEditor.Revision()
|
||||
if err := currentEditor.UpdateTextContent(page, id, args[2].String(), style); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if currentEditor.Revision() == revision {
|
||||
return editorSummary(), nil
|
||||
}
|
||||
return previewEditor(currentEditor, currentSession.Renderer.RenderAnnotations)
|
||||
}
|
||||
object.TextObject.Size = args[4].Float()
|
||||
_, layout := object.TextObject.TextLayout()
|
||||
if err := currentEditor.LayoutText(&object.TextObject, args[2].String(), layout); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
if !args[5].IsNull() {
|
||||
if err := setTextColor(&object.TextObject, args[5].String()); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
revision := currentEditor.Revision()
|
||||
if err := currentEditor.UpdateObject(page, id, object); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if currentEditor.Revision() == revision {
|
||||
return editorSummary(), nil
|
||||
}
|
||||
return previewEditor(currentEditor, currentSession.Renderer.RenderAnnotations)
|
||||
}
|
||||
|
||||
// checkFontGlyphs 只检查候选字体，不注册资源或改变文档
|
||||
// 入参: data 字体数据, value 待替换文字
|
||||
// 返回: error 缺字或字体格式错误
|
||||
func checkFontGlyphs(data []byte, value string) error {
|
||||
missing, err := (FontFile{Data: data}).MissingGlyphs(0, value)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if missing != "" {
|
||||
return &ofdgo.MissingGlyphError{Characters: missing}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// checkTextFont 为画布输入预检候选字体
|
||||
// 入参: args 字体数据和输入文字
|
||||
// 返回: any 空结果, error 缺字或字体格式错误
|
||||
func checkTextFont(args []js.Value) (any, error) {
|
||||
data, err := bytesFromJS(args[0])
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return nil, checkFontGlyphs(data, args[1].String())
|
||||
}
|
||||
|
||||
// styleText 批量修改文字样式，字体预检通过后交由库原子提交
|
||||
// 入参: args 页码、对象标识、字体数据、字号和颜色，null字体与颜色保持原值
|
||||
// 返回: any 文档信息, error 错误信息
|
||||
func styleText(args []js.Value) (any, error) {
|
||||
return changeObjects(func() error {
|
||||
page, ids := args[0].Int(), stringsFromJS(args[1])
|
||||
style := ofdgo.TextStyle{Size: args[3].Float()}
|
||||
if !args[2].IsNull() {
|
||||
data, err := bytesFromJS(args[2])
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
var value strings.Builder
|
||||
for _, id := range ids {
|
||||
object, err := currentEditor.Object(page, id)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if object.Type != "TextObject" {
|
||||
return fmt.Errorf("object %q is not text", id)
|
||||
}
|
||||
value.WriteString(object.TextObject.Text())
|
||||
}
|
||||
if err := checkFontGlyphs(data, value.String()); err != nil {
|
||||
return err
|
||||
}
|
||||
style.Font, err = currentEditor.AddFont(FontFile{Data: data}, 0)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
if !args[4].IsNull() {
|
||||
var color ofdgo.FillColor
|
||||
if err := setEditorColor(&color, args[4].String()); err != nil {
|
||||
return err
|
||||
}
|
||||
style.Color = color.Value
|
||||
}
|
||||
return currentEditor.StyleText(page, ids, style)
|
||||
})
|
||||
}
|
||||
|
||||
// setTextColor 将浏览器RGB色值写入文字对象，保留颜色透明度
|
||||
// 入参: object 文字对象, value 十六进制色值
|
||||
// 返回: error 错误信息
|
||||
func setTextColor(object *ofdgo.TextObject, value string) error {
|
||||
if object.FillColor == nil {
|
||||
object.FillColor = &ofdgo.FillColor{}
|
||||
}
|
||||
return setEditorColor(object.FillColor, value)
|
||||
}
|
||||
|
||||
// setEditorColor 写入当前文档的RGB纯色，保留透明度并替换原颜色空间和索引
|
||||
// 入参: fill 颜色, value 十六进制色值
|
||||
// 返回: error 错误信息
|
||||
@@ -3294,84 +3269,6 @@ func updatePathStyle(args []js.Value) (any, error) {
|
||||
})
|
||||
}
|
||||
|
||||
// insertText 使用选定字体创建文字对象
|
||||
// 入参: args 页码、内容、字体数据、横纵坐标、字号、颜色、框宽、折行、对齐、行距、字距及左右和首行缩进
|
||||
// 返回: any 文档信息, error 错误信息
|
||||
func insertText(args []js.Value) (any, error) {
|
||||
if currentEditor == nil {
|
||||
return nil, fmt.Errorf("no document is being edited")
|
||||
}
|
||||
data, err := bytesFromJS(args[2])
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
fontID, err := currentEditor.AddFont(FontFile{Data: data}, 0)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
page := args[0].Int()
|
||||
content, err := currentSession.pageContent(page)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
box, err := currentSession.pageBox(page, content)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
x, y := args[3].Float(), args[4].Float()
|
||||
width := args[7].Float()
|
||||
if width == 0 {
|
||||
width = 80
|
||||
}
|
||||
box = ofdgo.Box{X: x, Y: y, W: math.Min(width, box.W-x), H: box.H - y}
|
||||
object := ofdgo.GraphicObject{Type: "TextObject", TextObject: ofdgo.TextObject{
|
||||
Boundary: fmt.Sprintf("%g %g %g %g", box.X, box.Y, box.W, box.H),
|
||||
Font: fontID, Size: args[5].Float(),
|
||||
}}
|
||||
if err := currentEditor.LayoutText(&object.TextObject, args[1].String(), ofdgo.TextLayout{Wrap: args[8].Bool(), Align: args[9].String(), LineHeight: args[10].Float(), LetterSpacing: args[11].Float(), LeftIndent: args[12].Float(), RightIndent: args[13].Float(), FirstLineIndent: args[14].Float()}); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err := setTextColor(&object.TextObject, args[6].String()); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return insertEditorObject(page, object, args[15:])
|
||||
}
|
||||
|
||||
// layoutText 调整文字框和段落排版，保留软换行前的原文
|
||||
// 入参: args 页码、对象标识、本地左侧偏移、宽度、折行、对齐、行距、字距及左右和首行缩进
|
||||
// 返回: any 文档信息, error 错误信息
|
||||
func layoutText(args []js.Value) (any, error) {
|
||||
if currentEditor == nil {
|
||||
return nil, fmt.Errorf("no document is being edited")
|
||||
}
|
||||
page, id := args[0].Int(), args[1].String()
|
||||
object, err := currentEditor.Object(page, id)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if object.Type != "TextObject" {
|
||||
return nil, fmt.Errorf("object is not text")
|
||||
}
|
||||
if !args[2].IsNull() {
|
||||
object.TextObject, err = object.TextObject.ResizeTextFrame(args[2].Float(), args[3].Float())
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
value, _ := object.TextObject.TextLayout()
|
||||
if err := currentEditor.LayoutText(&object.TextObject, value, ofdgo.TextLayout{Wrap: args[4].Bool(), Align: args[5].String(), LineHeight: args[6].Float(), LetterSpacing: args[7].Float(), LeftIndent: args[8].Float(), RightIndent: args[9].Float(), FirstLineIndent: args[10].Float()}); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
revision := currentEditor.Revision()
|
||||
if err := currentEditor.UpdateObject(page, id, object); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if currentEditor.Revision() == revision {
|
||||
return editorSummary(), nil
|
||||
}
|
||||
return previewEditor(currentEditor, currentSession.Renderer.RenderAnnotations)
|
||||
}
|
||||
|
||||
// editorBox 将库层毫米边界传递给画布交互层
|
||||
// 入参: box 毫米坐标中的矩形范围
|
||||
// 返回: map[string]any 可直接传递给JavaScript的横纵坐标和宽高
|
||||
@@ -3631,14 +3528,107 @@ func editorOperationProgress(callback js.Value) func(string, int, int) error {
|
||||
}
|
||||
}
|
||||
|
||||
// saveDocument 分块写出当前编辑文档或指定页面
|
||||
// 入参: args 数据写出回调、可选准备进度回调和可选页面索引
|
||||
// 返回: any 保存结果, error 错误信息
|
||||
func saveDocument(args []js.Value) (any, error) {
|
||||
if currentEditor == nil {
|
||||
return nil, fmt.Errorf("no document is being edited")
|
||||
// credentialsFromJS 解析本次打开的口令或本机证书私钥
|
||||
// 入参: value 解锁表单数据
|
||||
// 返回: ofdgo.Credentials 会话凭据, error 错误信息
|
||||
func credentialsFromJS(value js.Value) (ofdgo.Credentials, error) {
|
||||
credentials := ofdgo.Credentials{UserName: value.Get("userName").String()}
|
||||
if keyValue := value.Get("key"); !keyValue.IsNull() && !keyValue.IsUndefined() {
|
||||
key, err := bytesFromJS(keyValue)
|
||||
if err != nil {
|
||||
return credentials, err
|
||||
}
|
||||
defer clear(key)
|
||||
certificate, err := bytesFromJS(value.Get("certificate"))
|
||||
if err != nil {
|
||||
return credentials, err
|
||||
}
|
||||
var password []byte
|
||||
if field := value.Get("keyPassword"); !field.IsUndefined() && !field.IsNull() {
|
||||
password, err = bytesFromJS(field)
|
||||
if err != nil {
|
||||
return credentials, err
|
||||
}
|
||||
defer clear(password)
|
||||
}
|
||||
signer, certificate, err := ofdgo.ParseSignatureIdentity(certificate, key, password)
|
||||
if err != nil {
|
||||
return credentials, ofdgo.ErrInvalidCredentials
|
||||
}
|
||||
decrypter, ok := signer.(crypto.Decrypter)
|
||||
if !ok {
|
||||
return credentials, ofdgo.ErrInvalidCredentials
|
||||
}
|
||||
credentials.Certificate, credentials.Decrypter = certificate, decrypter
|
||||
return credentials, nil
|
||||
}
|
||||
return saveEditor(currentEditor, args)
|
||||
var err error
|
||||
credentials.Password, err = bytesFromJS(value.Get("password"))
|
||||
return credentials, err
|
||||
}
|
||||
|
||||
// securityFilesFromJS 读取会话内的本机证据文件
|
||||
// 入参: value 二进制数组列表
|
||||
// 返回: [][]byte 文件内容, error 错误信息
|
||||
func securityFilesFromJS(value js.Value) ([][]byte, error) {
|
||||
if value.IsUndefined() || value.IsNull() {
|
||||
return nil, nil
|
||||
}
|
||||
files := make([][]byte, value.Length())
|
||||
for i := range files {
|
||||
var err error
|
||||
files[i], err = bytesFromJS(value.Index(i))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
return files, nil
|
||||
}
|
||||
|
||||
// verifySignatures 按本机信任锚和离线证据重新验签，不设置联网回调
|
||||
// 入参: args 信任根、辅助证书、时间戳及撤销证据
|
||||
// 返回: any 分项报告, error 错误信息
|
||||
func verifySignatures(args []js.Value) (any, error) {
|
||||
if currentSession == nil || len(args) == 0 {
|
||||
return nil, fmt.Errorf("missing signature verification arguments")
|
||||
}
|
||||
input := args[0]
|
||||
files := make(map[string][][]byte)
|
||||
for _, name := range []string{"roots", "certificates", "timestampRoots", "tokens", "crls", "ocsp"} {
|
||||
data, err := securityFilesFromJS(input.Get(name))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
files[name] = data
|
||||
}
|
||||
now := time.Now()
|
||||
policy := ofdgo.SignaturePolicy{RejectWeakAlgorithms: true, RequireDocumentCoverage: true,
|
||||
RequireTimestamp: input.Get("requireTimestamp").Bool(), RequireRevocation: input.Get("requireRevocation").Bool()}
|
||||
options := []ofdgo.SignatureVerifyOption{
|
||||
ofdgo.WithSignatureVerifyTime(now), ofdgo.WithSignaturePolicy(policy),
|
||||
ofdgo.WithSignatureTrustCerts(files["roots"]...), ofdgo.WithSignatureCerts(files["certificates"]...),
|
||||
}
|
||||
if policy.RequireTimestamp || len(files["timestampRoots"])+len(files["tokens"]) > 0 {
|
||||
options = append(options, ofdgo.WithSignatureTimestamp(ofdgo.SignatureTimestampOptions{
|
||||
TrustCerts: files["timestampRoots"], Certificates: files["certificates"], Tokens: files["tokens"], Required: policy.RequireTimestamp, VerifyTime: &now,
|
||||
}))
|
||||
}
|
||||
if policy.RequireRevocation || len(files["crls"])+len(files["ocsp"]) > 0 {
|
||||
options = append(options, ofdgo.WithSignatureRevocation(ofdgo.SignatureRevocationOptions{
|
||||
SignatureRevocationEvidence: ofdgo.SignatureRevocationEvidence{CRLs: files["crls"], OCSPResponses: files["ocsp"]},
|
||||
Certificates: append(files["certificates"], files["roots"]...), Required: policy.RequireRevocation, VerifyTime: &now,
|
||||
}))
|
||||
}
|
||||
reports, err := currentSession.Reader.VerifySignatures(options...)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
infos := make([]SignatureInfo, len(reports))
|
||||
for i, report := range reports {
|
||||
infos[i] = signatureInfo(report)
|
||||
}
|
||||
currentSession.signatures, currentSession.signatureError, currentSession.signaturesRead = infos, nil, true
|
||||
return map[string]any{"signatures": infos, "signatureCount": len(infos), "signatureError": ""}, nil
|
||||
}
|
||||
|
||||
// saveEncrypted 以独立快照加密另存，不修改当前文档的输出策略
|
||||
@@ -3790,6 +3780,16 @@ func saveSigned(args []js.Value) (any, error) {
|
||||
return successResult(map[string]any{"mime": "application/ofd", "label": "OFD"}), nil
|
||||
}
|
||||
|
||||
// saveDocument 分块写出当前编辑文档或指定页面
|
||||
// 入参: args 数据写出回调、可选准备进度回调和可选页面索引
|
||||
// 返回: any 保存结果, error 错误信息
|
||||
func saveDocument(args []js.Value) (any, error) {
|
||||
if currentEditor == nil {
|
||||
return nil, fmt.Errorf("no document is being edited")
|
||||
}
|
||||
return saveEditor(currentEditor, args)
|
||||
}
|
||||
|
||||
// saveEditor 统一分块写出及进度取消，加密策略由库层执行
|
||||
// 入参: editor 待写出文档, args 写出回调、进度回调和可选页面索引
|
||||
// 返回: any 保存结果, error 错误信息
|
||||
|
||||
+191
-191
@@ -39,6 +39,97 @@ type FontFile = ofdgo.FontFile
|
||||
// FontInfo OFD字体信息
|
||||
type FontInfo = ofdgo.FontInfo
|
||||
|
||||
// Session WebUI文档会话
|
||||
type Session struct {
|
||||
Reader *ofdgo.Reader
|
||||
Renderer *ofdgo.Renderer
|
||||
fontFS *ofdgo.FontFS
|
||||
doc *ofdgo.Document
|
||||
pageCache map[int]*ofdgo.PageContent
|
||||
boxCache []pageBoxInfo
|
||||
textCache map[int]*ofdgo.PageText
|
||||
svgFonts map[string][]byte
|
||||
fontScan *ofdgo.FontInfoScanner
|
||||
fontInfos []FontInfo
|
||||
fontsRead bool
|
||||
fontAnnotations bool
|
||||
signatures []SignatureInfo
|
||||
signatureError error
|
||||
signaturesRead bool
|
||||
editing bool
|
||||
}
|
||||
|
||||
// pageBoxInfo 按页索引缓存真实区域，valid区分未读取与零值区域
|
||||
type pageBoxInfo struct {
|
||||
box ofdgo.Box
|
||||
valid bool
|
||||
}
|
||||
|
||||
// DocumentInfo 文档信息
|
||||
type DocumentInfo struct {
|
||||
Encryption EncryptionInfo `json:"encryption"`
|
||||
Version string `json:"version"`
|
||||
DocType string `json:"docType"`
|
||||
Title string `json:"title"`
|
||||
Author string `json:"author"`
|
||||
Subject string `json:"subject"`
|
||||
CreationDate string `json:"creationDate"`
|
||||
ModDate string `json:"modDate"`
|
||||
PageCount int `json:"pageCount"`
|
||||
FontCount int `json:"fontCount"`
|
||||
SignatureCount int `json:"signatureCount"`
|
||||
SignatureError string `json:"signatureError,omitempty"`
|
||||
AttachmentError string `json:"attachmentError,omitempty"`
|
||||
Attachments []AttachmentInfo `json:"attachments,omitempty"`
|
||||
Fonts []FontInfo `json:"fonts"`
|
||||
Signatures []SignatureInfo `json:"signatures"`
|
||||
Pages []PageInfo `json:"pages"`
|
||||
Outlines []OutlineInfo `json:"outlines,omitempty"`
|
||||
DetailsPending bool `json:"detailsPending,omitempty"`
|
||||
}
|
||||
|
||||
// OutlineInfo 目录节点信息
|
||||
type OutlineInfo = ofdgo.OutlineInfo
|
||||
|
||||
// AttachmentInfo 可见附件信息，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"`
|
||||
}
|
||||
|
||||
// PageInfo 页面信息
|
||||
type PageInfo struct {
|
||||
Index int `json:"index"`
|
||||
ID string `json:"id"`
|
||||
Width float64 `json:"width"`
|
||||
Height float64 `json:"height"`
|
||||
}
|
||||
|
||||
// PageSVG 页面SVG结果
|
||||
type PageSVG struct {
|
||||
Index int `json:"index"`
|
||||
Number int `json:"number"`
|
||||
ID string `json:"id"`
|
||||
Width float64 `json:"width"`
|
||||
Height float64 `json:"height"`
|
||||
SVG string `json:"svg"`
|
||||
Links []ofdgo.PageLink `json:"-"`
|
||||
Fonts []ofdgo.SVGFont `json:"-"`
|
||||
Images []ofdgo.SVGImage `json:"-"`
|
||||
Annotations []ofdgo.AnnotationInfo `json:"annotations,omitempty"`
|
||||
}
|
||||
|
||||
// ExportFormat 导出格式
|
||||
type ExportFormat struct {
|
||||
Value string `json:"value"`
|
||||
Label string `json:"label"`
|
||||
Extension string `json:"extension"`
|
||||
MIME string `json:"mime"`
|
||||
}
|
||||
|
||||
// SignatureInfo 签名验证信息
|
||||
type SignatureInfo struct {
|
||||
DocIndex int `json:"docIndex"`
|
||||
@@ -144,55 +235,6 @@ type SignatureStampInfo struct {
|
||||
Height float64 `json:"height,omitempty"`
|
||||
}
|
||||
|
||||
// Session WebUI文档会话
|
||||
type Session struct {
|
||||
Reader *ofdgo.Reader
|
||||
Renderer *ofdgo.Renderer
|
||||
fontFS *ofdgo.FontFS
|
||||
doc *ofdgo.Document
|
||||
pageCache map[int]*ofdgo.PageContent
|
||||
boxCache []pageBoxInfo
|
||||
textCache map[int]*ofdgo.PageText
|
||||
svgFonts map[string][]byte
|
||||
fontScan *ofdgo.FontInfoScanner
|
||||
fontInfos []FontInfo
|
||||
fontsRead bool
|
||||
fontAnnotations bool
|
||||
signatures []SignatureInfo
|
||||
signatureError error
|
||||
signaturesRead bool
|
||||
editing bool
|
||||
}
|
||||
|
||||
// pageBoxInfo 按页索引缓存真实区域，valid区分未读取与零值区域
|
||||
type pageBoxInfo struct {
|
||||
box ofdgo.Box
|
||||
valid bool
|
||||
}
|
||||
|
||||
// DocumentInfo 文档信息
|
||||
type DocumentInfo struct {
|
||||
Encryption EncryptionInfo `json:"encryption"`
|
||||
Version string `json:"version"`
|
||||
DocType string `json:"docType"`
|
||||
Title string `json:"title"`
|
||||
Author string `json:"author"`
|
||||
Subject string `json:"subject"`
|
||||
CreationDate string `json:"creationDate"`
|
||||
ModDate string `json:"modDate"`
|
||||
PageCount int `json:"pageCount"`
|
||||
FontCount int `json:"fontCount"`
|
||||
SignatureCount int `json:"signatureCount"`
|
||||
SignatureError string `json:"signatureError,omitempty"`
|
||||
AttachmentError string `json:"attachmentError,omitempty"`
|
||||
Attachments []AttachmentInfo `json:"attachments,omitempty"`
|
||||
Fonts []FontInfo `json:"fonts"`
|
||||
Signatures []SignatureInfo `json:"signatures"`
|
||||
Pages []PageInfo `json:"pages"`
|
||||
Outlines []OutlineInfo `json:"outlines,omitempty"`
|
||||
DetailsPending bool `json:"detailsPending,omitempty"`
|
||||
}
|
||||
|
||||
// EncryptionInfo 仅向界面传递非敏感加密状态
|
||||
type EncryptionInfo struct {
|
||||
Encrypted bool `json:"encrypted"`
|
||||
@@ -201,55 +243,6 @@ type EncryptionInfo struct {
|
||||
Layers int `json:"layers,omitempty"`
|
||||
}
|
||||
|
||||
// encryptionInfo 获取当前文档的加密来源，不包含凭据
|
||||
// 返回: EncryptionInfo 加密状态
|
||||
func (s *Session) encryptionInfo() EncryptionInfo {
|
||||
info := s.Reader.Encryption()
|
||||
return EncryptionInfo{Encrypted: info.Encrypted, Method: info.Method, Users: info.Users, Layers: info.Layers}
|
||||
}
|
||||
|
||||
// OutlineInfo 目录节点信息
|
||||
type OutlineInfo = ofdgo.OutlineInfo
|
||||
|
||||
// AttachmentInfo 可见附件信息，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"`
|
||||
}
|
||||
|
||||
// PageInfo 页面信息
|
||||
type PageInfo struct {
|
||||
Index int `json:"index"`
|
||||
ID string `json:"id"`
|
||||
Width float64 `json:"width"`
|
||||
Height float64 `json:"height"`
|
||||
}
|
||||
|
||||
// PageSVG 页面SVG结果
|
||||
type PageSVG struct {
|
||||
Index int `json:"index"`
|
||||
Number int `json:"number"`
|
||||
ID string `json:"id"`
|
||||
Width float64 `json:"width"`
|
||||
Height float64 `json:"height"`
|
||||
SVG string `json:"svg"`
|
||||
Links []ofdgo.PageLink `json:"-"`
|
||||
Fonts []ofdgo.SVGFont `json:"-"`
|
||||
Images []ofdgo.SVGImage `json:"-"`
|
||||
Annotations []ofdgo.AnnotationInfo `json:"annotations,omitempty"`
|
||||
}
|
||||
|
||||
// ExportFormat 导出格式
|
||||
type ExportFormat struct {
|
||||
Value string `json:"value"`
|
||||
Label string `json:"label"`
|
||||
Extension string `json:"extension"`
|
||||
MIME string `json:"mime"`
|
||||
}
|
||||
|
||||
// supportedExportFormats 导出格式列表
|
||||
var supportedExportFormats = []ExportFormat{
|
||||
{Value: "pdf", Label: "PDF", Extension: "pdf", MIME: "application/pdf"},
|
||||
@@ -260,30 +253,6 @@ var supportedExportFormats = []ExportFormat{
|
||||
{Value: "txt", Label: "TXT", Extension: "txt", MIME: "text/plain"},
|
||||
}
|
||||
|
||||
// ExportFormats 获取导出格式
|
||||
// 返回: []ExportFormat 导出格式列表
|
||||
func ExportFormats() []ExportFormat {
|
||||
formats := make([]ExportFormat, len(supportedExportFormats))
|
||||
copy(formats, supportedExportFormats)
|
||||
return formats
|
||||
}
|
||||
|
||||
// exportFormat 获取导出格式
|
||||
// 入参: value 格式值
|
||||
// 返回: ExportFormat 导出格式, bool 是否支持
|
||||
func exportFormat(value string) (ExportFormat, bool) {
|
||||
value = strings.ToLower(strings.TrimSpace(value))
|
||||
if value == "jpeg" {
|
||||
value = "jpg"
|
||||
}
|
||||
for _, format := range supportedExportFormats {
|
||||
if format.Value == value {
|
||||
return format, true
|
||||
}
|
||||
}
|
||||
return ExportFormat{}, false
|
||||
}
|
||||
|
||||
// Open 打开浏览器内存中的OFD文档
|
||||
// 入参: data OFD文件数据, opts 打开选项
|
||||
// 返回: *Session 文档会话, error 错误信息
|
||||
@@ -647,6 +616,64 @@ func (s *Session) SVGFontData(name string) ([]byte, error) {
|
||||
return data, nil
|
||||
}
|
||||
|
||||
// pageContent 读取页面，复用最近一次解析结果
|
||||
// 入参: index 页面索引
|
||||
// 返回: *ofdgo.PageContent 页面内容, error 错误信息
|
||||
func (s *Session) pageContent(index int) (*ofdgo.PageContent, error) {
|
||||
if s == nil || s.Reader == nil || s.Renderer == nil || s.doc == nil {
|
||||
return nil, fmt.Errorf("ofd document is not opened")
|
||||
}
|
||||
if page, ok := s.pageCache[index]; ok {
|
||||
return page, nil
|
||||
}
|
||||
clear(s.pageCache)
|
||||
page, err := s.Reader.PageContentByIndex(index)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
s.pageCache[index] = page
|
||||
return page, nil
|
||||
}
|
||||
|
||||
// pageBox 获取页面物理区域
|
||||
// 入参: index 页面索引, page 页面内容
|
||||
// 返回: ofdgo.Box 页面物理区域, error 错误信息
|
||||
func (s *Session) pageBox(index int, page *ofdgo.PageContent) (ofdgo.Box, error) {
|
||||
if cached := s.boxCache[index]; cached.valid {
|
||||
return cached.box, nil
|
||||
}
|
||||
box, err := s.Renderer.GetPageBox(page)
|
||||
if err != nil {
|
||||
return ofdgo.Box{}, err
|
||||
}
|
||||
s.boxCache[index] = pageBoxInfo{box: box, valid: true}
|
||||
return box, nil
|
||||
}
|
||||
|
||||
// ExportFormats 获取导出格式
|
||||
// 返回: []ExportFormat 导出格式列表
|
||||
func ExportFormats() []ExportFormat {
|
||||
formats := make([]ExportFormat, len(supportedExportFormats))
|
||||
copy(formats, supportedExportFormats)
|
||||
return formats
|
||||
}
|
||||
|
||||
// exportFormat 获取导出格式
|
||||
// 入参: value 格式值
|
||||
// 返回: ExportFormat 导出格式, bool 是否支持
|
||||
func exportFormat(value string) (ExportFormat, bool) {
|
||||
value = strings.ToLower(strings.TrimSpace(value))
|
||||
if value == "jpeg" {
|
||||
value = "jpg"
|
||||
}
|
||||
for _, format := range supportedExportFormats {
|
||||
if format.Value == value {
|
||||
return format, true
|
||||
}
|
||||
}
|
||||
return ExportFormat{}, false
|
||||
}
|
||||
|
||||
// ExportPage 导出单页
|
||||
// 入参: index 页面索引, value 导出格式, dpi 图片DPI, writer 输出流
|
||||
// 返回: ExportFormat 导出格式, error 错误信息
|
||||
@@ -666,6 +693,48 @@ func (s *Session) ExportPage(index int, value string, dpi float64, writer io.Wri
|
||||
return format, renderer.RenderTo(page, writer, format.Value)
|
||||
}
|
||||
|
||||
// ExportDocument 导出文档为PDF、TXT或逐页打包ZIP
|
||||
// 入参: value 导出格式, dpi 图片DPI, writer 输出流, indices 零基页面索引，省略则全部
|
||||
// 返回: ExportFormat 导出格式, error 错误信息
|
||||
func (s *Session) ExportDocument(value string, dpi float64, writer io.Writer, indices ...int) (ExportFormat, error) {
|
||||
format, ok := exportFormat(value)
|
||||
if !ok {
|
||||
return ExportFormat{}, fmt.Errorf("unsupported export format %s", value)
|
||||
}
|
||||
if format.Value == "pdf" {
|
||||
return format, s.ExportPDF(writer, indices...)
|
||||
}
|
||||
if s == nil || s.Reader == nil || s.Renderer == nil || s.doc == nil {
|
||||
return ExportFormat{}, fmt.Errorf("ofd document is not opened")
|
||||
}
|
||||
if format.Value == "txt" {
|
||||
return format, s.Renderer.RenderToMultiPageText(writer, indices...)
|
||||
}
|
||||
renderer := *s.Renderer
|
||||
if dpi > 0 && (format.Value == "png" || format.Value == "jpg") {
|
||||
renderer.DPI = dpi
|
||||
}
|
||||
err := renderer.RenderToZIP(writer, format.Value, indices...)
|
||||
return ExportFormat{Value: "zip", Label: "ZIP", Extension: "zip", MIME: "application/zip"}, err
|
||||
}
|
||||
|
||||
// ExportPDF 导出文档为PDF
|
||||
// 入参: writer 输出流, indices 零基页面索引，省略则全部
|
||||
// 返回: error 错误信息
|
||||
func (s *Session) ExportPDF(writer io.Writer, indices ...int) error {
|
||||
if s == nil || s.Reader == nil || s.Renderer == nil || s.doc == nil {
|
||||
return fmt.Errorf("ofd document is not opened")
|
||||
}
|
||||
return s.Renderer.RenderToMultiPagePDF(writer, indices...)
|
||||
}
|
||||
|
||||
// encryptionInfo 获取当前文档的加密来源，不包含凭据
|
||||
// 返回: EncryptionInfo 加密状态
|
||||
func (s *Session) encryptionInfo() EncryptionInfo {
|
||||
info := s.Reader.Encryption()
|
||||
return EncryptionInfo{Encrypted: info.Encrypted, Method: info.Method, Users: info.Users, Layers: info.Layers}
|
||||
}
|
||||
|
||||
// signatureInfos 获取签名验证信息
|
||||
// 返回: []SignatureInfo 签名验证信息, error 错误信息
|
||||
func (s *Session) signatureInfos() ([]SignatureInfo, error) {
|
||||
@@ -855,72 +924,3 @@ func signatureStampInfos(positions []ofdgo.SignatureStampPosition) []SignatureSt
|
||||
}
|
||||
return infos
|
||||
}
|
||||
|
||||
// ExportDocument 导出文档为PDF、TXT或逐页打包ZIP
|
||||
// 入参: value 导出格式, dpi 图片DPI, writer 输出流, indices 零基页面索引，省略则全部
|
||||
// 返回: ExportFormat 导出格式, error 错误信息
|
||||
func (s *Session) ExportDocument(value string, dpi float64, writer io.Writer, indices ...int) (ExportFormat, error) {
|
||||
format, ok := exportFormat(value)
|
||||
if !ok {
|
||||
return ExportFormat{}, fmt.Errorf("unsupported export format %s", value)
|
||||
}
|
||||
if format.Value == "pdf" {
|
||||
return format, s.ExportPDF(writer, indices...)
|
||||
}
|
||||
if s == nil || s.Reader == nil || s.Renderer == nil || s.doc == nil {
|
||||
return ExportFormat{}, fmt.Errorf("ofd document is not opened")
|
||||
}
|
||||
if format.Value == "txt" {
|
||||
return format, s.Renderer.RenderToMultiPageText(writer, indices...)
|
||||
}
|
||||
renderer := *s.Renderer
|
||||
if dpi > 0 && (format.Value == "png" || format.Value == "jpg") {
|
||||
renderer.DPI = dpi
|
||||
}
|
||||
err := renderer.RenderToZIP(writer, format.Value, indices...)
|
||||
return ExportFormat{Value: "zip", Label: "ZIP", Extension: "zip", MIME: "application/zip"}, err
|
||||
}
|
||||
|
||||
// ExportPDF 导出文档为PDF
|
||||
// 入参: writer 输出流, indices 零基页面索引，省略则全部
|
||||
// 返回: error 错误信息
|
||||
func (s *Session) ExportPDF(writer io.Writer, indices ...int) error {
|
||||
if s == nil || s.Reader == nil || s.Renderer == nil || s.doc == nil {
|
||||
return fmt.Errorf("ofd document is not opened")
|
||||
}
|
||||
return s.Renderer.RenderToMultiPagePDF(writer, indices...)
|
||||
}
|
||||
|
||||
// pageContent 读取页面，复用最近一次解析结果
|
||||
// 入参: index 页面索引
|
||||
// 返回: *ofdgo.PageContent 页面内容, error 错误信息
|
||||
func (s *Session) pageContent(index int) (*ofdgo.PageContent, error) {
|
||||
if s == nil || s.Reader == nil || s.Renderer == nil || s.doc == nil {
|
||||
return nil, fmt.Errorf("ofd document is not opened")
|
||||
}
|
||||
if page, ok := s.pageCache[index]; ok {
|
||||
return page, nil
|
||||
}
|
||||
clear(s.pageCache)
|
||||
page, err := s.Reader.PageContentByIndex(index)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
s.pageCache[index] = page
|
||||
return page, nil
|
||||
}
|
||||
|
||||
// pageBox 获取页面物理区域
|
||||
// 入参: index 页面索引, page 页面内容
|
||||
// 返回: ofdgo.Box 页面物理区域, error 错误信息
|
||||
func (s *Session) pageBox(index int, page *ofdgo.PageContent) (ofdgo.Box, error) {
|
||||
if cached := s.boxCache[index]; cached.valid {
|
||||
return cached.box, nil
|
||||
}
|
||||
box, err := s.Renderer.GetPageBox(page)
|
||||
if err != nil {
|
||||
return ofdgo.Box{}, err
|
||||
}
|
||||
s.boxCache[index] = pageBoxInfo{box: box, valid: true}
|
||||
return box, nil
|
||||
}
|
||||
Reference in new issue
Block a user