import html2Canvas from 'html2canvas'

import JsPDF from 'jspdf'

export default{

    install (Vue, options) {

        Vue.prototype.$getPdf = function (dom) {

           // var title = this.htmlTitle;

            console.log(dom);

            html2Canvas(dom, {

                allowTaint: true

                // allowTaint: false,

                // useCORS: true

            }).then(function (canvas) {

                    let contentWidth = canvas.width;

                    let contentHeight = canvas.height;

                    let pageHeight = contentWidth / 592.28 * 841.89;

                    let leftHeight = contentHeight;

                    let position = 0;

                    let imgWidth = 595.28;

                    let imgHeight = 592.28 / contentWidth * contentHeight;

                    let pageData = canvas.toDataURL('image/jpeg', 1.0);

                    let PDF = new JsPDF('', 'pt', 'a4');

                    if (leftHeight < pageHeight) {

                        PDF.addImage(pageData, 'JPEG', 0, 0, imgWidth, imgHeight)

                    } else {

                        while (leftHeight>0) {

                            PDF.addImage(pageData, 'JPEG', 0, position, imgWidth, imgHeight);

                            leftHeight -= pageHeight;

                            position -= 841.89;

                            if (leftHeight>0) {

                                PDF.addPage()

                            }

                        }

                    }

                    PDF.save(new Date().getTime() + '.pdf')

                }

            )

        }

    }

}