Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'html2canvas' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.
downloadReceipt() {
const data = document.getElementById('receipt');
// console.log(data);
html2canvas(data).then((canvas) => {
// Few necessary setting options
const imgWidth = 208;
const pageHeight = 295;
const imgHeight = canvas.height * imgWidth / canvas.width;
const heightLeft = imgHeight;
const contentDataURL = canvas.toDataURL('image/png');
const pdf = new jspdf('p', 'mm', 'a4'); // A4 size page of PDF
const position = 0;
pdf.addImage(contentDataURL, 'PNG', 0, position, imgWidth, imgHeight);
pdf.save('ikismail.pdf'); // Generated PDF
});
}
}
captureClick = () => {
this.props.captureScreenshot(null);
this.setState({
isLoading: true,
});
html2canvas(document.body, {
logging: false,
useCORS: true,
imageTimeout: 5000,
onclone: (cloneDoc) => {
const si = cloneDoc.getElementById(config.siteInspectorElement);
// hard coded width to prevent overrendering
cloneDoc.body.style.width = `${document.body.scrollWidth}px`;
if (si) {
si.parentElement.removeChild(si);
}
const style = cloneDoc.createElement('style');
style.innerHTML = '* { animation-name: unset !important; -webkit-animation-duration: 0s !important; ' +
'animation-duration: 0s !important; -webkit-animation-fill-mode: none !important; animation-fill-mode: none !important; ' +
'-webkit-transition: none !important; -moz-transition: none !important; -o-transition: none !important; transition: none !important; }';
cloneDoc.body.appendChild(style);
private generatePdfFromData(data: HTMLElement) {
html2canvas(data).then(canvas => {
const imgWidth = 208;
const pageHeight = 350;
const imgHeight = (canvas.height * imgWidth) / canvas.width;
let heightLeft = imgHeight;
const contentDataURL = canvas.toDataURL('image/png');
const pdf = new jspdf('p', 'mm', 'a4');
let position = 8;
// let margin = 16;
pdf.addImage(
contentDataURL,
'PNG',
8,
position,
imgWidth - 24,
imgHeight - 24
);
onClick={() => {
html2canvas(document.getElementById("ScreenShot")).then(function(
canvas
) {
let img = canvas.toDataURL("image/png");
let lnk = document.createElement("a"),
e;
/// the key here is to set the download attribute of the a tag
lnk.download = "Schedule.png";
/// convert canvas content to data-uri for link. When download
/// attribute is set the content pointed to by link will be
/// pushed as "download" in HTML5 capable browsers
lnk.href = img;
/// create a "fake" click-event to trigger the download
if (document.createEvent) {
e = document.createEvent("MouseEvents");
e.initMouseEvent(
"click",
getImage (data) {
try {
let image_ = html2canvas(data).then(canvas => {
let _image = new Image()
_image.src = canvas.toDataURL('image/png')
return new Promise((resolve) => {
resolve(_image)
})
}).catch(error => {
console.info(error)
})
return image_
} catch (error) {
console.log(error)
}
}
const printElement = element => {
html2canvas(element).then(function (canvas) {
const guid = generateId()
ReImg.fromCanvas(canvas).downloadPng(`neuler-${guid}.png`);
})
}
onClick={() => {
html2canvas(document.body, {
allowTaint: true,
width: window.innerWidth,
height: window.innerHeight,
scrollX: window.pageXOffset,
scrollY: window.pageYOffset,
x: window.pageXOffset,
y: window.pageYOffset
})
.then(canvas => {
this.setState({canvas});
canvas.style.position = 'fixed';
canvas.style.top = '0';
canvas.style.left = '0';
canvas.style.opacity = '0';
canvas.style.transform = 'scale(0)';
var action = (item) => {
var positionStyle = getComputedStyle(item)["position"];
if (positionStyle === "static" || positionStyle === "")
item.style.position = "relative";
html2canvas(item, {
useCORS:true,
onrendered: (canvas) => {
item.style.border = 'none';
var shader = new ShaderHandler(item, canvas.toDataURL('png'), options.fragment || 'default', options.vertex || 'default', options.params);
this.fragment = shader.fragment;
this.vertex = shader.vertex;
this.canvasInfo = shader.canvasInfo;
}
});
}
if (typeof(target) === "string")
}
pdf.setFontType('bold');
pdf.setFontSize(12);
pdf.text(pdfInfo, pdfConfig.stampImageLandscape.coordinates.x, 18);
pdf.setFontType('normal');
await this.addPdfImage(`/${appContext}/apis/dashboards/pdfFooter`, function (res) {
if (res != 'none') {
pdf.addImage(res, 'JPEG', (pdf.internal.pageSize.getWidth() - 40),
(pdf.internal.pageSize.getHeight() - 8), pdfConfig.stampImageLandscape.size.x,
pdfConfig.stampImageLandscape.size.y);
}
});
await html2canvas(element).then((canvas) => {
const imgData = canvas.toDataURL('image/png');
if (canvas.width > canvas.height - 28) {
const val = (pdf.internal.pageSize.getWidth()) / canvas.width;
const xposition = (pdf.internal.pageSize.getWidth() - canvas.width * val) / 2;
if (canvas.height * val < 210) {
if (canvas.height * val < 180) {
pdf.addImage(imgData, 'JPEG', xposition, 45, canvas.width * val, canvas.height * val,
'widget', 'FAST');
} else {
pdf.addImage(imgData, 'JPEG', xposition, 25, canvas.width * val, canvas.height * val,
'widget', 'FAST');
}
} else {
const valH = (pdf.internal.pageSize.getHeight() - 28) / canvas.height;
const xposition = (pdf.internal.pageSize.getWidth() - canvas.width * valH) / 2;
saveImage () {
html2Canvas(document.querySelector('.profile'), {
backgroundColor: '#f6f8fa',
useCORS: true,
scale: 2
})
.then(canvas => {
const a = document.createElement('a')
a.href = canvas.toDataURL('image/jpeg').replace('image/jpeg', 'image/octet-stream')
a.download = `${this.$route.params.username}-Profile.jpg`
a.click()
})
}
}