miyako / 4d-component-wkhtmltopdf

4D wrapper for wkhtmltopdf

4d-component-wkhtmltopdf

4D wrapper for wkhtmltopdf

Discussion

It is very hard to use libwkhtmltopdf as a plugin-style module for 4D. The menu bar is corrupted, the event loop is disrupted...just not worth it. Much easier to run the CLI with LAUNCH EXTERNAL PROCESS. Thankfully the command is now thread safe.

About Apple Silicon

see https://wkhtmltopdf.org/status

there is no native support (needs Rosetta 2)

About Notarisation

If wkhtmltopdf is notarised without entitlements,

i.e.

codesign 
	--verbose 
	--deep 
	--timestamp
	--force 
	--sign "Developer ID Application: keisuke miyako (Y69CWUC25B)" 
	--options=runtime 

it will not work anymore.

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It must be codesigned and notarised with sufficient entitlements.

Usage

Pass the standard arguments in camelcase.

$path:=Get 4D folder(Current resources folder)+"test.html"

$html:=Document to text($path;"utf-8")

C_OBJECT($options)
$options:=New object
$options.grayscale:=True
$options.dpi:=72
$options.logLevel:="none"
$options.externalLinks:=False
$options.collate:=False
$options.copies:=1
$options.imageDpi:=300
$options.imageQuality:=100
$options.lowquality:=True
$options.orientation:="Landscape"  //Portrait
$options.marginBottom:="0mm"
$options.marginLeft:="0mm"
$options.marginRight:="0mm"
$options.marginTop:="0mm"
  //$options.pageHeight:="30cm"
  //$options.pageWidth:="30cm"
$options.pageSize:="A4"
$options.title:="TEST"
$options.pdfCompression:=False

$options.outline:=True
$options.outlineDepth:=8

$options.background:=True
$options.loadErrorHandling:="skip"  //abort,ignore
$options.loadMediaErrorHandling:="skip"  //abort,ignore
$options.localFileAccess:=True
  //$options.minimumFontSize:=20

$options.zoom:=2

  //repeatable properties not implemented;
  //allow,bypassProxyFor,cookie*,customHeader,post,postFile,runScript,replace

$pdf:=wkhtmltopdf ($options;$html;"utf-8")

  //$pdf is empty in case of conversion failure
  //$options.errors[] may contain error information (may not be failure)
  //$options.value contains the command line string

If (BLOB size($pdf)#0)
	
	$path:=System folder(Desktop)+Generate UUID+".pdf"
	
	BLOB TO DOCUMENT($path;$pdf)
	OPEN URL($path)
	
End if