Update pdfium to 6392, implement new methods

.github/workflows/go.yml

@@ -17,9 +17,9 @@ jobs:
       matrix:
         os: [ ubuntu-latest, macos-latest, windows-latest ]
         go: [ "1.20", "1.21", "1.22" ]
-        pdfium: [ "4849", "6281" ]
+        pdfium: [ "4849", "6392" ]
     env:
-      PDFIUM_EXPERIMENTAL_VERSION: "6281"
+      PDFIUM_EXPERIMENTAL_VERSION: "6392"
       PDFIUM_EXPERIMENTAL_GO_VERSION: "1.22"
     runs-on: ${{ matrix.os }}
     steps:

.github/workflows/pdfium-windows.pc

@@ -4,7 +4,7 @@ includedir=D:/opt/pdfium/include
 
 Name: PDFium
 Description: PDFium
-Version: 6281
+Version: 6392
 Requires:
 
 Libs: -L${libdir} -lpdfium

.github/workflows/pdfium.pc

@@ -4,7 +4,7 @@ includedir=/opt/pdfium/include
 
 Name: PDFium
 Description: PDFium
-Version: 6281
+Version: 6392
 Requires:
 
 Libs: -L${libdir} -lpdfium

README.md

@@ -138,7 +138,7 @@ includedir={path}/include
 
 Name: PDFium
 Description: PDFium
-Version: 6281
+Version: 6392
 Requires:
 
 Libs: -L${libdir} -lpdfium

internal/implementation_cgo/fpdf_annot.go

@@ -1626,3 +1626,64 @@
 
 	return &responses.FPDFAnnot_SetURI{}, nil
 }
+
+// FPDFAnnot_GetFileAttachment get the attachment from the given annotation.
+// Experimental API.
+func (p *PdfiumImplementation) FPDFAnnot_GetFileAttachment(request *requests.FPDFAnnot_GetFileAttachment) (*responses.FPDFAnnot_GetFileAttachment, error) {
+	p.Lock()
+	defer p.Unlock()
+
+	documentHandle, err := p.getDocumentHandle(request.Document)
+	if err != nil {
+		return nil, err
+	}
+
+	annotationHandle, err := p.getAnnotationHandle(request.Annotation)
+	if err != nil {
+		return nil, err
+	}
+
+	handle := C.FPDFAnnot_GetFileAttachment(annotationHandle.handle)
+	if handle == nil {
+		return nil, errors.New("could not get attachment object")
+	}
+
+	attachmentHandle := p.registerAttachment(handle, documentHandle)
+
+	return &responses.FPDFAnnot_GetFileAttachment{
+		Attachment: attachmentHandle.nativeRef,
+	}, nil
+}
+
+// FPDFAnnot_AddFileAttachment Add an embedded file to the given annotation.
+// Experimental API.
+func (p *PdfiumImplementation) FPDFAnnot_AddFileAttachment(request *requests.FPDFAnnot_AddFileAttachment) (*responses.FPDFAnnot_AddFileAttachment, error) {
+	p.Lock()
+	defer p.Unlock()
+
+	documentHandle, err := p.getDocumentHandle(request.Document)
+	if err != nil {
+		return nil, err
+	}
+
+	annotationHandle, err := p.getAnnotationHandle(request.Annotation)
+	if err != nil {
+		return nil, err
+	}
+
+	transformedName, err := p.transformUTF8ToUTF16LE(request.Name)
+	if err != nil {
+		return nil, err
+	}
+
+	handle := C.FPDFAnnot_AddFileAttachment(annotationHandle.handle, (C.FPDF_WIDESTRING)(unsafe.Pointer(&transformedName[0])))
+	if handle == nil {
+		return nil, errors.New("could not get attachment object")
+	}
+
+	attachmentHandle := p.registerAttachment(handle, documentHandle)
+
+	return &responses.FPDFAnnot_AddFileAttachment{
+		Attachment: attachmentHandle.nativeRef,
+	}, nil
+}

internal/implementation_cgo/fpdf_annot_no_experimental.go

@@ -440,3 +440,15 @@ func (p *PdfiumImplementation) FPDFAnnot_GetFormFieldExportValue(request *reques
 func (p *PdfiumImplementation) FPDFAnnot_SetURI(request *requests.FPDFAnnot_SetURI) (*responses.FPDFAnnot_SetURI, error) {
 	return nil, pdfium_errors.ErrExperimentalUnsupported
 }
+
+// FPDFAnnot_GetFileAttachment get the attachment from the given annotation.
+// Experimental API.
+func (p *PdfiumImplementation) FPDFAnnot_GetFileAttachment(request *requests.FPDFAnnot_GetFileAttachment) (*responses.FPDFAnnot_GetFileAttachment, error) {
+	return nil, pdfium_errors.ErrExperimentalUnsupported
+}
+
+// FPDFAnnot_AddFileAttachment Add an embedded file to the given annotation.
+// Experimental API.
+func (p *PdfiumImplementation) FPDFAnnot_AddFileAttachment(request *requests.FPDFAnnot_AddFileAttachment) (*responses.FPDFAnnot_AddFileAttachment, error) {
+	return nil, pdfium_errors.ErrExperimentalUnsupported
+}

internal/implementation_webassembly/fpdf_annot.go

@@ -1,5 +1,6 @@
 package implementation_webassembly
 
+import "C"
 import (
 	"errors"
 	"unsafe"
@@ -2193,3 +2194,75 @@
 
 	return &responses.FPDFAnnot_SetURI{}, nil
 }
+
+// FPDFAnnot_GetFileAttachment get the attachment from the given annotation.
+// Experimental API.
+func (p *PdfiumImplementation) FPDFAnnot_GetFileAttachment(request *requests.FPDFAnnot_GetFileAttachment) (*responses.FPDFAnnot_GetFileAttachment, error) {
+	p.Lock()
+	defer p.Unlock()
+
+	documentHandle, err := p.getDocumentHandle(request.Document)
+	if err != nil {
+		return nil, err
+	}
+
+	annotationHandle, err := p.getAnnotationHandle(request.Annotation)
+	if err != nil {
+		return nil, err
+	}
+
+	res, err := p.Module.ExportedFunction("FPDFAnnot_GetFileAttachment").Call(p.Context, *annotationHandle.handle)
+	if err != nil {
+		return nil, err
+	}
+
+	handle := res[0]
+	if handle == 0 {
+		return nil, errors.New("could not get attachment object")
+	}
+
+	attachmentHandle := p.registerAttachment(&handle, documentHandle)
+
+	return &responses.FPDFAnnot_GetFileAttachment{
+		Attachment: attachmentHandle.nativeRef,
+	}, nil
+}
+
+// FPDFAnnot_AddFileAttachment Add an embedded file to the given annotation.
+// Experimental API.
+func (p *PdfiumImplementation) FPDFAnnot_AddFileAttachment(request *requests.FPDFAnnot_AddFileAttachment) (*responses.FPDFAnnot_AddFileAttachment, error) {
+	p.Lock()
+	defer p.Unlock()
+
+	documentHandle, err := p.getDocumentHandle(request.Document)
+	if err != nil {
+		return nil, err
+	}
+
+	annotationHandle, err := p.getAnnotationHandle(request.Annotation)
+	if err != nil {
+		return nil, err
+	}
+
+	namePointer, err := p.CFPDF_WIDESTRING(request.Name)
+	if err != nil {
+		return nil, err
+	}
+	defer namePointer.Free()
+
+	res, err := p.Module.ExportedFunction("FPDFAnnot_AddFileAttachment").Call(p.Context, *annotationHandle.handle, namePointer.Pointer)
+	if err != nil {
+		return nil, err
+	}
+
+	handle := res[0]
+	if handle == 0 {
+		return nil, errors.New("could not get attachment object")
+	}
+
+	attachmentHandle := p.registerAttachment(&handle, documentHandle)
+
+	return &responses.FPDFAnnot_AddFileAttachment{
+		Attachment: attachmentHandle.nativeRef,
+	}, nil
+}

pdfium.go

@@ -1919,6 +1919,14 @@ type Pdfium interface {
 	// Experimental API.
 	FPDFAnnot_SetURI(request *requests.FPDFAnnot_SetURI) (*responses.FPDFAnnot_SetURI, error)
 
+	// FPDFAnnot_GetFileAttachment get the attachment from the given annotation.
+	// Experimental API.
+	FPDFAnnot_GetFileAttachment(request *requests.FPDFAnnot_GetFileAttachment) (*responses.FPDFAnnot_GetFileAttachment, error)
+
+	// FPDFAnnot_AddFileAttachment Add an embedded file to the given annotation.
+	// Experimental API.
+	FPDFAnnot_AddFileAttachment(request *requests.FPDFAnnot_AddFileAttachment) (*responses.FPDFAnnot_AddFileAttachment, error)
+
 	// End fpdf_annot.h
 
 	// Start fpdf_formfill.h

requests/fpdf_annot.go

@@ -304,3 +304,14 @@ type FPDFAnnot_SetURI struct {
 	Annotation references.FPDF_ANNOTATION
 	URI        string
 }
+
+type FPDFAnnot_GetFileAttachment struct {
+	Document   references.FPDF_DOCUMENT
+	Annotation references.FPDF_ANNOTATION
+}
+
+type FPDFAnnot_AddFileAttachment struct {
+	Document   references.FPDF_DOCUMENT
+	Annotation references.FPDF_ANNOTATION
+	Name       string
+}

responses/fpdf_annot.go

@@ -223,3 +223,11 @@ type FPDFAnnot_GetFormFieldExportValue struct {
 }
 
 type FPDFAnnot_SetURI struct{}
+
+type FPDFAnnot_GetFileAttachment struct {
+	Attachment references.FPDF_ATTACHMENT
+}
+
+type FPDFAnnot_AddFileAttachment struct {
+	Attachment references.FPDF_ATTACHMENT
+}