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var beforeImageToPdf, afterImageToPdf; |
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|
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/* Image of page to PDF */ |
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function imageToPdf( id = 0 ) { |
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( function( $ ) { |
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|
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window.scrollTo( 0, 0 ); |
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|
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if ( '1' == pdfprnt_file_settings.count_generation ) { |
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$.ajax( { |
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url: pdfprnt_file_settings.ajaxurl, |
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type: "POST", |
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data: { action: 'pdfprnt_pdf_count', pdfprnt_ajax_nonce: pdfprnt_file_settings.ajax_nonce, id: id }, |
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success: function() { |
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} |
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} ); |
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} |
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|
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var deferreds = []; |
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var fileSettings = { |
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'pageSize': pdfprnt_file_settings.page_size.toLowerCase(), |
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'marginLeft': Number( pdfprnt_file_settings.margin_left ), |
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'marginRight': Number( pdfprnt_file_settings.margin_right ), |
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'marginBottom': Number( pdfprnt_file_settings.margin_bottom ), |
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'marginTop': Number( pdfprnt_file_settings.margin_top ), |
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'fileAction': pdfprnt_file_settings.file_action, |
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'fileName': pdfprnt_file_settings.file_name |
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}; |
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|
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var pdf = new jsPDF( 'portrait', 'px', fileSettings['pageSize'] ); |
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var width = pdf.internal.pageSize.getWidth(); |
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var height = pdf.internal.pageSize.getHeight(); |
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/* add to page Header and Footer */ |
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function addImageCustom( canvas, imgWidth, imgHeight ) { |
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pdf.addImage( canvas.toDataURL('image/jpeg', 1.0 ), 'JPEG', |
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fileSettings['marginLeft'], |
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fileSettings['marginTop'], |
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imgWidth, imgHeight |
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); |
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} |
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|
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let additionalHiddenSelectors = []; |
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if ( pdfprnt_file_settings.hide_classes ) { |
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additionalHiddenSelectors = pdfprnt_file_settings.hide_classes.split( ',' ).map( cls => cls.trim() ).filter( cls => cls ); |
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} |
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|
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const elementsToHideExisting = [...additionalHiddenSelectors]; |
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const hiddenElements = []; |
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elementsToHideExisting.forEach( selector => { |
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const elements = document.querySelectorAll( selector ); |
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elements.forEach( el => { |
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hiddenElements.push({ el, parent: el.parentNode, nextSibling: el.nextSibling }); |
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el.style.display = 'none'; |
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}); |
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}); |
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|
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window.scrollTo(0, 0); |
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if ( 'undefined' != typeof beforeImageToPdf ) { |
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beforeImageToPdf(); |
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} |
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/* hide default wp panel */ |
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document.getElementById("wpadminbar") ? document.getElementById("wpadminbar").style.display = "none" : ''; |
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|
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var deferred = $.Deferred(); |
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deferreds.push( deferred.promise() ); |
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var canvasTop, canvasBottom; |
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generateCanvas( 'body', pdf, deferred ); |
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|
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function generateCanvas( selector, pdf, deferred ) { |
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html2canvas( document.querySelector( 'body' ) ).then( canvas => { |
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var contentWidth = canvas.width; |
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var contentHeight = canvas.height; |
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var headerSize = fileSettings['marginTop'] + fileSettings['marginBottom']; |
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var imgHeaderSize = ( contentWidth / width * headerSize ); |
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/* The height of the canvas which one pdf page can show; */ |
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var pageHeight = contentWidth / width * height; |
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|
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/* the height of canvas that haven't render to pdf */ |
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var leftHeight = contentHeight; |
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var imgWidth = width - fileSettings['marginLeft'] - fileSettings['marginRight']; |
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var imgHeight = width / contentWidth * contentHeight - headerSize; |
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|
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if ( ( leftHeight + headerSize ) < pageHeight ) { |
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addImageCustom( canvas, imgWidth, imgHeight + headerSize ); |
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} else { |
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var countPages = Math.ceil(leftHeight / pageHeight ); |
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var leftHeightAfter = ( countPages * headerSize ) + leftHeight; |
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|
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var canvasNew = document.createElement('canvas'); |
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canvasNew.width = contentWidth; |
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/* var theColorBody = $('body').css("background-color"); */ |
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var row = 0; |
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for ( var i = 0; i < countPages - 1; i++ ) { |
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canvasNew.height = pageHeight - imgHeaderSize; |
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var context = canvasNew.getContext('2d'); |
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context.drawImage( canvas, 0, i * -pageHeight + row ); |
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imgHeight = ( width / contentWidth * pageHeight - headerSize ); |
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let n = 0; |
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/* var imgData = context.getImageData( fileSettings['marginLeft'], 0, contentWidth - fileSettings['marginRight'] - fileSettings['marginLeft'], pageHeight ); |
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let n = 1; |
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let j = imgData.data.length - ( contentWidth - fileSettings['marginRight'] - fileSettings['marginLeft'] ) * 4 * n; |
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let rgb; |
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let lastPx = imgData.data.length; |
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while ( j != lastPx ) { |
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rgb = 'rgb(' + imgData.data[j] + ', ' + imgData.data[j + 1] + ', ' + imgData.data[j + 2] + ')'; |
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j += 4; |
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if ( rgb != theColorBody ) { |
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n++; |
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j = imgData.data.length - ( contentWidth - fileSettings['marginRight'] - fileSettings['marginLeft'] ) * 4 * n; |
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lastPx = imgData.data.length - ( contentWidth - fileSettings['marginRight'] - fileSettings['marginLeft'] ) * 4 * ( n - 1 ); |
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} else if ( n == 50 ) { |
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break; |
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} |
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} */ |
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canvasNew.height = pageHeight - n; |
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context = canvasNew.getContext('2d'); |
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context.drawImage( canvas, 0, i * -pageHeight + row ); |
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addImageCustom( canvasNew, imgWidth, imgHeight ); |
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leftHeight -= pageHeight; |
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pdf.addPage(); |
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row = row + n; |
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} |
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|
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leftHeightAfter += row; |
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var countPagesAfter = Math.ceil( leftHeightAfter / pageHeight ); |
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if ( countPagesAfter != countPages ) { |
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|
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canvasNew.height = pageHeight - imgHeaderSize; |
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context = canvasNew.getContext('2d'); |
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context.drawImage( canvas, 0, i * -pageHeight + row ); |
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addImageCustom( canvasNew, imgWidth, imgHeight ); |
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|
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pdf.addPage(); |
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i++; |
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leftHeight -= pageHeight; |
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row += imgHeaderSize; |
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} |
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|
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canvasNew.height = leftHeight + row; |
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context.drawImage( canvas, 0, i * -pageHeight + row ); |
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imgHeightLast = width / contentWidth * canvasNew.height; |
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addImageCustom( canvasNew, imgWidth, imgHeightLast ); |
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|
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} |
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deferred.resolve(); |
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}); |
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} |
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|
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if ( 'undefined' != typeof afterImageToPdf ) { |
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afterImageToPdf(); |
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} |
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/* show default wp panel */ |
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document.getElementById("wpadminbar") ? document.getElementById("wpadminbar").style.display = "block" : ''; |
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|
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hiddenElements.forEach( ({ el, parent, nextSibling }) => { |
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parent.insertBefore( el, nextSibling ); |
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el.style.display = ''; |
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}); |
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|
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// executes after adding all images |
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$.when.apply( $, deferreds ).then( function() { |
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if ( 'open' == fileSettings['fileAction'] ) { |
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pdf.setProperties({ |
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title: fileSettings['fileName'] |
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}); |
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//pdf.autoPrint(); |
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window.open( pdf.output('bloburl') ); |
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/* IFRAME |
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var string = pdf.output('datauristring'); |
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var iframe = "<head><style>*{margin: 0; padding: 0;}</style><title>" + fileSettings['fileName'] + "</title></head>" + |
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"<body><iframe width='100%' height='1000px' src='" + string + "'></iframe></body>" |
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|
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var x = window.open(); |
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x.document.open(); |
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x.document.write( iframe ); |
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x.document.close();*/ |
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|
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/* pdf.output( 'dataurlnewwindow' ); */ |
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} else { |
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pdf.save( fileSettings['fileName'] ); |
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} |
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}); |
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|
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} )( jQuery ); |
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} |
