@syncfusion/ej2-pdfviewer
Version:
Essential JS 2 PDF viewer Component
114 lines (113 loc) • 6.07 kB
JavaScript
/**
* `DirectPrint` module is used to handle the direct print functionality of PDF Viewer.
* @hidden
*/
var DefaultPrint = /** @class */ (function () {
/**
* @param {PdfViewer} pdfViewer - The PDF Viewer instance.
* @param {PdfViewerBase} pdfViewerBase - The PDF Viewer Base instance.
* @private
*/
function DefaultPrint(pdfViewer, pdfViewerBase) {
this.pdfViewer = pdfViewer;
this.pdfViewerBase = pdfViewerBase;
}
/**
* Creates a request for direct print functionality.
* @returns {void}
* @private
*/
DefaultPrint.prototype.createRequestForDirectPrint = function () {
this.pdfViewer.printModule.canPrint = true;
var jsonObject = this.pdfViewerBase.constructJsonDownload(true);
if (this.pdfViewerBase.jsonDocumentId) {
jsonObject.documentId = this.pdfViewerBase.jsonDocumentId;
}
jsonObject.enablePrintRotation = this.pdfViewer.enablePrintRotation;
var data = this.pdfViewer.pdfRendererModule.getDocumentAsUint8Array(jsonObject);
if (this.pdfViewer.downloadFileName && (this.pdfViewer.downloadFileName !== this.pdfViewerBase.downloadFileName)) {
this.pdfViewerBase.downloadFileName = this.pdfViewer.downloadFileName;
}
this.pdfViewer.firePrintEnd(this.pdfViewer.downloadFileName);
if (this.pdfViewer.printMode === 'Default') {
this.printPdfDirectlySameWindow(data);
}
else {
this.printPdfDirectlyNewWindow(data, this.pdfViewerBase.downloadFileName);
}
this.pdfViewerBase.updateDocumentAnnotationCollections();
this.pdfViewer.printModule.canPrint = false;
};
DefaultPrint.prototype.createPdfBlobAndUrl = function (fileByteArray) {
var pdfBlob = new Blob([fileByteArray], { type: 'application/pdf' });
var blobUrl = URL.createObjectURL(pdfBlob);
return { blobUrl: blobUrl };
};
DefaultPrint.prototype.printPdfDirectlySameWindow = function (fileByteArray) {
var _this = this;
var blobUrl = this.createPdfBlobAndUrl(fileByteArray).blobUrl;
var iframe = document.createElement('iframe');
iframe.style.display = 'none';
iframe.src = blobUrl;
document.body.appendChild(iframe);
var hasPrinted = false;
var tryPrint = function () {
if (hasPrinted) {
return;
}
hasPrinted = true;
try {
var contentWindow = iframe.contentWindow;
if (!contentWindow) {
throw new Error('Unable to access iframe content');
}
_this.pdfViewerBase.showPrintLoadingIndicator(false);
contentWindow.focus();
contentWindow.print();
}
catch (error) {
console.error('Error while trying to print:', error);
}
};
iframe.onload = function () {
tryPrint();
};
};
DefaultPrint.prototype.printPdfDirectlyNewWindow = function (fileByteArray, fileName) {
var _this = this;
var blobUrl = this.createPdfBlobAndUrl(fileByteArray).blobUrl;
var screenWidth = window.screen.availWidth;
var screenHeight = window.screen.availHeight;
var windowFeatures = "width=" + screenWidth + ",height=" + screenHeight + ",top=0,left=0,toolbar=no,menubar=no,scrollbars=no,resizable=no";
var printWindow = window.open('', fileName, windowFeatures);
if (!printWindow) {
alert('Please allow pop-ups for this site.');
return;
}
printWindow.addEventListener('beforeunload', function () {
_this.pdfViewerBase.showPrintLoadingIndicator(false);
});
var printDocument = printWindow.document;
var html = printDocument.createElement('html');
var head = printDocument.createElement('head');
var body = printDocument.createElement('body');
var title = printDocument.createElement('title');
title.textContent = fileName;
head.appendChild(title);
var style = printDocument.createElement('style');
style.textContent = "\n html, body {\n margin: 0;\n padding: 0;\n height: 100%;\n overflow: hidden;\n }\n iframe {\n width: 100%;\n height: 100%;\n border: none;\n display: block;\n }";
head.appendChild(style);
var iframe = printDocument.createElement('iframe');
iframe.id = 'pdfFrame';
iframe.src = blobUrl + "#toolbar=0&navpanes=0&scrollbar=0";
body.appendChild(iframe);
var script = printDocument.createElement('script');
script.textContent = "\n const iframe = document.getElementById('pdfFrame');\n iframe.onload = function () {\n const contentWindow = iframe.contentWindow;\n if (!contentWindow) {\n console.error(\"Unable to access iframe content window.\");\n return;\n }\n contentWindow.focus();\n contentWindow.print();\n let focusLost = false;\n contentWindow.onafterprint = function () {\n window.close();\n };\n const checkFocus = setInterval(function () {\n if (document.hasFocus() && focusLost) {\n clearInterval(checkFocus);\n window.close();\n } else if (!document.hasFocus()) {\n focusLost = true;\n }\n }, 500);\n };";
body.appendChild(script);
html.appendChild(head);
html.appendChild(body);
printDocument.documentElement.replaceWith(html);
};
return DefaultPrint;
}());
export { DefaultPrint };