mirror of
https://github.com/xiaoqidun/ofdgo.git
synced 2026-10-29 14:16:55 +08:00
50 lines
1.6 KiB
Go
50 lines
1.6 KiB
Go
// Copyright 2025-2026 肖其顿 (XIAO QI DUN)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package ofdgo
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import (
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"context"
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"errors"
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"fmt"
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"github.com/xiaoqidun/pdfgo"
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)
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// documentAttachments 导入文档名称树中的附件，与注解及动作引用共用附件资源
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// 入参: ctx 取消上下文
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// 返回: error 名称树、附件读取或写入错误
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func (p *pdfImporter) documentAttachments(ctx context.Context) error {
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return p.reader.WalkEmbeddedFiles(ctx, func(_ string, file pdfgo.FileSpecification) error {
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if file.Embedded == nil {
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if p.warning == nil {
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return fmt.Errorf("PDF embedded file has no embedded data")
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}
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p.warning(pdfgo.Diagnostic{Message: "PDF embedded file without embedded data ignored"})
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return nil
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}
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data, err := file.Embedded.DecodeContext(ctx)
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if err != nil {
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var unsupported *pdfgo.UnsupportedError
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if p.warning != nil && errors.As(err, &unsupported) {
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p.warning(pdfgo.Diagnostic{Message: "PDF document attachment not transferred to OFD: " + err.Error()})
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return nil
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}
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return err
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}
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_, err = p.attachmentFile(file.Name, data)
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return err
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})
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}
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