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// Copyright 2017 Baliance. All rights reserved.
//
// Use of this source code is governed by the terms of the Affero GNU General
// Public License version 3.0 as published by the Free Software Foundation and
// appearing in the file LICENSE included in the packaging of this file. A
// commercial license can be purchased by contacting sales@baliance.com.
package unioffice
import (
"fmt"
"strings"
"github.com/unidoc/unioffice/algo"
)
// Common filenames used in zip packages.
const (
ContentTypesFilename = "[Content_Types].xml"
BaseRelsFilename = "_rels/.rels"
)
// DocType represents one of the three document types supported (docx/xlsx/pptx)
type DocType byte
// Document Type constants
const (
Unknown DocType = iota
DocTypeSpreadsheet
DocTypeDocument
DocTypePresentation
)
// RelativeFilename returns a filename relative to the source file referenced
// from a relationships file. Index is used in some cases for files which there
// may be more than one of (e.g. worksheets/drawings/charts)
func RelativeFilename(dt DocType, relToTyp, typ string, index int) string {
orig := AbsoluteFilename(dt, typ, index)
if relToTyp == "" {
return orig
}
relTo := AbsoluteFilename(dt, relToTyp, index)
relToSp := strings.Split(relTo, "/")
origSp := strings.Split(orig, "/")
// determine how many segments match
matching := 0
for i := 0; i < len(relToSp); i++ {
if relToSp[i] == origSp[i] {
matching++
}
if i+1 == len(origSp) {
break
}
}
relToSp = relToSp[matching:]
origSp = origSp[matching:]
nm := len(relToSp) - 1
if nm > 0 {
return algo.RepeatString("../", nm) + strings.Join(origSp, "/")
}
return strings.Join(origSp, "/")
}
// AbsoluteFilename returns the full path to a file from the root of the zip
// container. Index is used in some cases for files which there may be more than
// one of (e.g. worksheets/drawings/charts)
func AbsoluteFilename(dt DocType, typ string, index int) string {
switch typ {
case CorePropertiesType:
return "docProps/core.xml"
case ExtendedPropertiesType, ExtendedPropertiesTypeStrict:
return "docProps/app.xml"
case ThumbnailType, ThumbnailTypeStrict:
return "docProps/thumbnail.jpeg"
case OfficeDocumentType, OfficeDocumentTypeStrict:
switch dt {
case DocTypeSpreadsheet:
return "xl/workbook.xml"
case DocTypeDocument:
return "word/document.xml"
case DocTypePresentation:
return "ppt/presentation.xml"
default:
Log("unsupported type %s pair and %v", typ, dt)
}
case ThemeType, ThemeTypeStrict, ThemeContentType:
switch dt {
case DocTypeSpreadsheet:
return fmt.Sprintf("xl/theme/theme%d.xml", index)
case DocTypeDocument:
return fmt.Sprintf("word/theme/theme%d.xml", index)
case DocTypePresentation:
return fmt.Sprintf("ppt/theme/theme%d.xml", index)
default:
Log("unsupported type %s pair and %v", typ, dt)
}
case StylesType, StylesTypeStrict:
switch dt {
case DocTypeSpreadsheet:
return "xl/styles.xml"
case DocTypeDocument:
return "word/styles.xml"
case DocTypePresentation:
return "ppt/styles.xml"
default:
Log("unsupported type %s pair and %v", typ, dt)
}
case ChartType, ChartTypeStrict, ChartContentType:
switch dt {
case DocTypeSpreadsheet:
return fmt.Sprintf("xl/charts/chart%d.xml", index)
default:
Log("unsupported type %s pair and %v", typ, dt)
}
case TableType, TableTypeStrict, TableContentType:
return fmt.Sprintf("xl/tables/table%d.xml", index)
case DrawingType, DrawingTypeStrict, DrawingContentType:
switch dt {
case DocTypeSpreadsheet:
return fmt.Sprintf("xl/drawings/drawing%d.xml", index)
default:
Log("unsupported type %s pair and %v", typ, dt)
}
case CommentsType, CommentsTypeStrict, CommentsContentType:
switch dt {
case DocTypeSpreadsheet:
return fmt.Sprintf("xl/comments%d.xml", index)
default:
Log("unsupported type %s pair and %v", typ, dt)
}
case VMLDrawingType, VMLDrawingTypeStrict, VMLDrawingContentType:
switch dt {
case DocTypeSpreadsheet:
return fmt.Sprintf("xl/drawings/vmlDrawing%d.vml", index)
default:
Log("unsupported type %s pair and %v", typ, dt)
}
case ImageType, ImageTypeStrict:
switch dt {
case DocTypeDocument:
return fmt.Sprintf("word/media/image%d.png", index)
case DocTypeSpreadsheet:
return fmt.Sprintf("xl/media/image%d.png", index)
case DocTypePresentation:
return fmt.Sprintf("ppt/media/image%d.png", index)
default:
Log("unsupported type %s pair and %v", typ, dt)
}
// SML
case WorksheetType, WorksheetTypeStrict, WorksheetContentType:
return fmt.Sprintf("xl/worksheets/sheet%d.xml", index)
case SharedStingsType, SharedStingsTypeStrict, SharedStringsContentType:
return "xl/sharedStrings.xml"
// WML
case FontTableType, FontTableTypeStrict:
return "word/fontTable.xml"
case EndNotesType, EndNotesTypeStrict:
return "word/endnotes.xml"
case FootNotesType, FootNotesTypeStrict:
return "word/footnotes.xml"
case NumberingType, NumberingTypeStrict:
return "word/numbering.xml"
case WebSettingsType, WebSettingsTypeStrict:
return "word/webSettings.xml"
case SettingsType, SettingsTypeStrict:
return "word/settings.xml"
case HeaderType, HeaderTypeStrict:
return fmt.Sprintf("word/header%d.xml", index)
case FooterType, FooterTypeStrict:
return fmt.Sprintf("word/footer%d.xml", index)
// PML
case SlideType, SlideTypeStrict:
return fmt.Sprintf("ppt/slides/slide%d.xml", index)
case SlideLayoutType:
return fmt.Sprintf("ppt/slideLayouts/slideLayout%d.xml", index)
case SlideMasterType:
return fmt.Sprintf("ppt/slideMasters/slideMaster%d.xml", index)
default:
Log("unsupported type %s", typ)
}
return ""
}
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