diff options
| -rw-r--r-- | def.go | 2 | ||||
| -rw-r--r-- | fpdf.go | 29 | ||||
| -rw-r--r-- | fpdf_test.go | 14 |
3 files changed, 45 insertions, 0 deletions
@@ -247,6 +247,8 @@ type Fpdf struct { protect protectType // document protection structure layer layerRecType // manages optional layers in document catalogSort bool // sort resource catalogs in document + nJs int // JavaScript object number + javascript *string // JavaScript code to include in the PDF colorFlag bool // indicates whether fill and text colors are different color struct { // Composite values of colors @@ -3028,6 +3028,11 @@ func (f *Fpdf) SetCreationDate(tm time.Time) { f.creationDate = tm } +// SetJavascript adds Adobe JavaScript to the document. +func (f *Fpdf) SetJavascript(script string) { + f.javascript = &script +} + func (f *Fpdf) putpages() { var wPt, hPt float64 var pageSize SizeType @@ -3475,6 +3480,25 @@ func (f *Fpdf) putGradients() { } } +func (f *Fpdf) putjavascript() { + if f.javascript == nil { + return + } + + f.newobj() + f.nJs = f.n + f.out("<<") + f.outf("/Names [(EmbeddedJS) %d 0 R]", f.n+1) + f.out(">>") + f.out("endobj") + f.newobj() + f.out("<<") + f.out("/S /JavaScript") + f.outf("/JS %s", f.textstring(*f.javascript)) + f.out(">>") + f.out("endobj") +} + func (f *Fpdf) putresources() { if f.err != nil { return @@ -3495,6 +3519,7 @@ func (f *Fpdf) putresources() { f.putresourcedict() f.out(">>") f.out("endobj") + f.putjavascript() if f.protect.encrypted { f.newobj() f.protect.objNum = f.n @@ -3572,6 +3597,10 @@ func (f *Fpdf) putcatalog() { } // Layers f.layerPutCatalog() + // JavaScript + if f.javascript != nil { + f.outf("/Names <</JavaScript %d 0 R>>", f.nJs) + } } func (f *Fpdf) putheader() { diff --git a/fpdf_test.go b/fpdf_test.go index 456295c..5781ad6 100644 --- a/fpdf_test.go +++ b/fpdf_test.go @@ -1857,3 +1857,17 @@ func ExampleFpdf_Rect() { // Output: // Successfully generated pdf/Fpdf_WrappedTableCells.pdf } + +// This example demonstrates including JavaScript in the document. +func ExampleFpdf_SetJavascript() { + pdf := gofpdf.New("P", "mm", "A4", "") + pdf.SetJavascript("print(true);") + pdf.AddPage() + pdf.SetFont("Arial", "", 12) + pdf.Write(10, "Auto-print.") + fileStr := example.Filename("Fpdf_SetJavascript") + err := pdf.OutputFileAndClose(fileStr) + example.Summary(err, fileStr) + // Output: + // Successfully generated pdf/Fpdf_SetJavascript.pdf +} |