I have a video for which I want to provide a download link. However, having created a simple Download tag, when I click on it (in Firefox & Chrome) it starts playing the video instead of allowing the video to be downloaded. Is there a way that works in all current browsers to force them to offer the save-as dialog?
Try using the download attribute.
<a href="myvideo.mp4" download>Download</a>
More at:
http://www.w3schools.com/tags/att_a_download.asp
you should also try this.
if (isVideo) {
var div = document.createElement('div');
div.className = "column";
var vid = document.createElement('video');
var source = document.createElement('source');
source.type = "video/mp4";
source.src = display_src;
vid.appendChild(source);
vid.poster;
vid.controls = true;
var alink = document.createElement('a');
alink.href = display_src;
alink.id = 'downlo_click';
}
alink.text = "Repost"
// window.open(alink, '_self');
div.appendChild(vid);
div.appendChild(alink);
document.getElementById('gamediv').appendChild(div)
document.getElementById('downlo_click').addEventListener('click', function() {
var x = new XMLHttpRequest();
x.open("GET", display_src, true);
x.responseType = 'blob';
x.onload = function(e) {
download(x.response, "abcd.mp4", "video/mp4");
}
x.send();
// window.open(alink, '_self');
// download("data:text/html,"display_src, display_src);
});
}
Related
Hello I am trying to code an HTML button to download an image.
Here is the code I am using that seems like I am getting close but not quite there.
<a href="https://assets.giftcardsuite.com/valentinesday/Valentines-Day-Theme-1.png" download>
<img src="https://assets.giftcardsuite.com/valentinesday/Valentines-Day-Theme-1.png" class="img-responsive" alt="happy-valentines-day"> Click Here To Download
</a>
Here is a screenshot of what it looks like when I download it:
https://snag.gy/tTC2ER.jpg
You can check this response: href image link download on click
Also this answer using Jquery Download Plugin
Try this script:
//https://stackoverflow.com/a/50042812/10849656
function forceDownload(link){
var url = link.getAttribute("data-href");
var fileName = link.getAttribute("download");
link.innerText = "...";
var xhr = new XMLHttpRequest();
xhr.open("GET", url, true);
xhr.responseType = "blob";
xhr.onload = function(){
var urlCreator = window.URL || window.webkitURL;
var imageUrl = urlCreator.createObjectURL(this.response);
var tag = document.createElement('a');
tag.href = imageUrl;
tag.download = fileName;
document.body.appendChild(tag);
tag.click();
document.body.removeChild(tag);
link.innerText="Download";
}
xhr.send();
}
<a href="#" data-href='https://i.imgur.com/mdYoHMD.jpg' download="Image.jpg" onclick='forceDownload(this)'>Download Image</a>
I think your code is disarranged
Try this:
<a href="https://assets.giftcardsuite.com/valentinesday/Valentines-Day-Theme-1.png" download>Click here</a> to download
When I download something I usually use my download function below. I don't need to remove from DOM because it never gets placed in the DOM.
Javascript
function download(data, name) {
var blob = new Blob([data], {type: 'application/octect-stream'});
var bloburl = URL.createObjectURL(blob);
var a = document.createElement('a');
a.href = bloburl;
a.download = name;
a.click();
URL.revokeObjectURL(blob);
}
After updating Google Chrome, the report jsPDF in a new Window does not work any more.
The console shows the message:
Not allowed to navigate top frame to data URL:
data:application/pdf;base64,JVBERi0xLjMKMyAwIG9iago8PC9UeXBlIC9QYWdlCi9QYXJlbnQgMSAwIFIKL1....
Can you help-me?
Thanks.
This works well now that chrome has removed top frame navigation. Only downloading the pdf in chrome gives problem. Download works in well in firefox tho.
var string = doc.output('datauristring');
var iframe = "<iframe width='100%' height='100%' src='" + string + "'></iframe>"
var x = window.open();
x.document.open();
x.document.write(iframe);
x.document.close();
Apparently Google Chrome has removed support for top-frame navigation, you can see more informations here: https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/GbVcuwg_QjM
You may try to render the jsPDF to an iFrame
I recently had the same problem using FileReader object to read content and show my JSReport.
var reader = new FileReader();
reader.onload = function (e) {
window.open(reader.result, "_blank");
}
reader.readAsDataURL(blob);
Unfortunatly after chrome update all my report stopped working.
I tried to fix this by using Blob object and it's still working but if you have a popup blocker it will not work.
var file = new Blob([blob], { type: 'application/pdf' });
var fileURL = URL.createObjectURL(file);
window.open(fileURL);
I finally find a way to avoid this problem by creating the iFrame dynamically after reading this topic and i decided to share the solution.
var file = new Blob([blob], { type: 'application/pdf' });
var fileURL = URL.createObjectURL(file);
var win = window.open();
win.document.write('<iframe src="' + fileURL + '" frameborder="0" style="border:0; top:0px; left:0px; bottom:0px; right:0px; width:100%; height:100%;" allowfullscreen></iframe>')
Maybe can help, create a function to export with the download attribute html5:
var docPdf = doc.output();
exportToFile(docPdf,defaults.type);
function exportToFile(data,type){
var hiddenElement = document.createElement('a');
hiddenElement.href = 'data:text/'+type+';filename='+'exportar.'+type+';'+'charset=utf-8,' + encodeURI(data);
hiddenElement.target = '_blank';
hiddenElement.download = 'exportar.'+type;
hiddenElement.click();
}
the download property of the a element has to contain a file name.
function window_download( datauri )
{
const match = datauri.match(/(filename=)([^;]+)/);
const fileName = match ? match[2] : '' ;
if ( fileName )
{
const downloadLink = document.createElement("a");
downloadLink.download = fileName;
downloadLink.innerHTML = "Download File";
downloadLink.href = datauri ;
downloadLink.click();
}
else
{
throw 'missing download file name' ;
}
// get contents of pdf from jsPDF as a data uri.
const uri = pdf.output('datauristring', 'packing-list.pdf' );
window_download( uri ) ;
<iframe id="ManualFrame"
frameborder="0"
style="border:0"
allowfullscreen>
</iframe>
<script>
$(function () {
setManualFrame();
});
function setManualFrame() {
$("#ManualFrame").attr("height", screen.height);
$("#ManualFrame").attr("width", screen.width);
$("#ManualFrame").attr("src", "data:application/pdf;base64," + Your_PDF_Data);
}
</script>
var pdfUrl = doc.output('datauri').substring(doc.output('datauri').indexOf(',')+1);
var binary = atob(pdfUrl.replace(/\s/g, ''));
var len = binary.length;
var buffer = new ArrayBuffer(len);
var view = new Uint8Array(buffer);
for (var i = 0; i < len; i++) {
view[i] = binary.charCodeAt(i);
}
var blob = new Blob( [view], { type: "application/pdf" });
var url = URL.createObjectURL(blob);
function openPDF(){
window.open(url);
}
As chrome removed its support for - Top-frame navigation. Luckily jsPDF has an API - "save()", which offers the same functionality as doc.output('datauri')
Below is the example implementation of save()
var doc = new jsPDF();
doc.addImage(imgData, 'JPEG', 0, 0, 300, 160);
doc.save('fileName.pdf');
save(filename, options) → {jsPDF|Promise}
Saves as PDF document. An alias of jsPDF.output('save', 'filename.pdf'). Uses FileSaver.js-method saveAs.
Refer JSPDF documentation for more information -
Add attrbute download
Based on Joyston's answer, but without reparsing and therefore without additional need to escape something:
x=window.open();
iframe=x.document.createElement('iframe')
iframe.width='100%'
iframe.height='100%'
iframe.frameBorder=0
iframe.style="border: 0"
iframe.src='data:text/html........' //data-uri content here
x.document.body.appendChild(iframe);
Not related to jspdf, but did help me here (and this question is the top hit at google): If specifying a download="..." attribute to the anchor tag, the download prompt will properly open up.
#kuldeep-choudhary
Hi, in fact, to solve i'm using object tag with angularJS 1.5.xx
<object ng-attr-data="{{data}}" type="application/pdf"></object>
and in script:
$scope.doc.data = $sce.trustAsResourceUrl(doc.output("datauristring"));
In pure javascript, maybe like this works:
html:
<object id="obj" type="application/pdf" ></object>
js:
document.elementById('obj').data = doc.output("datauristring");
please, try and correct-me if I wrong.
Using download="" made me able to download the file
/**
* Creates an anchor element `<a></a>` with
* the base64 pdf source and a filename with the
* HTML5 `download` attribute then clicks on it.
* #param {string} pdf
* #return {void}
*/
function downloadPDF(pdf) {
const linkSource = `data:application/pdf;base64,${pdf}`;
const downloadLink = document.createElement("a");
const fileName = "vct_illustration.pdf";
downloadLink.href = linkSource;
downloadLink.download = fileName;
downloadLink.click();
}
Source from: https://medium.com/octopus-labs-london/downloading-a-base-64-pdf-from-an-api-request-in-javascript-6b4c603515eb
In angular2+ -
app.component.html -
<object id="obj" [attr.data] type="application/pdf"> </object>
app.component.ts
document.getElementById('obj').dataset.data = doc.output("datauristring");
var blob = doc.output("blob");
window.open(URL.createObjectURL(blob));
I've been using this code download PDF to directly download a link for pdf but this code only work in Google Chrome
Can someone help me to make this work in Mozilla Firefox and IE8 as well. Because when I try to test it in Mozilla Firefox it opens the links but doesn't pop up the "Save As" window.
I'd use PHP headers so reference the file with something like this for the url:
download PDF
Then use php to deliver the file:
<?php
/* put some validation and injection protection here */
$approvedFiles = ["myFile.pdf","myOtherFile.pdf"];
if (!in_array($_GET['file'],$approvedFiles)){
header("HTTP/1.1 404 Not Found");
die();
}
//otherwise
header('Content-type: application/pdf');
header('Content-Disposition: attachment; filename="myFile.pdf"');
readfile('myFile.pdf');
Note: pseudo code is not perfect :)
Refs: http://php.net/manual/en/function.header.php
http://jsfiddle.net/RemMp/
<a id="save_data" href="">link</a>
window.URL = window.webkitURL || window.URL;
var a = document.getElementById('save_data');
var data = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQImWNgYGBgAAAABQABh6FO1AAAAABJRU5ErkJggg==';
var filename = 'qqq.pdf';
a.download = filename;
a.href = data;
a.textContent = 'Downloading...';
//release memory
a.onclick = function(e){
save_cleanup(this);
};
//force click
document.querySelector('#save_data').click();
function save_cleanup(a){
a.textContent = 'Downloaded';
setTimeout(function(){
a.href = '';
var element = document.getElementById("save_data");
element.parentNode.removeChild(element);
}, 1500);
};
From the following code I'm creating a dynamic anchor tag which downloads a file. This code works well in Chrome but not in IE. How can I get this working
<div id="divContainer">
<h3>Sample title</h3>
</div>
<button onclick="clicker()">Click me</button>
<script type="text/javascript">
function clicker() {
var anchorTag = document.createElement('a');
anchorTag.href = "http://cdn1.dailymirror.lk/media/images/finance.jpg";
anchorTag.download = "download";
anchorTag.click();
var element = document.getElementById('divContainer');
element.appendChild(anchorTag);
}
</script>
Internet Explorer does not presently support the Download attribute on A tags.
See http://caniuse.com/download and http://status.modern.ie/adownloadattribute; the latter indicates that the feature is "Under consideration" for IE12.
In my case, since there's a requirement to support the usage of IE 11 (version 11.0.9600.18665), I ended up using the solution provided by #Henners on his comment:
// IE10+ : (has Blob, but not a[download] or URL)
if (navigator.msSaveBlob) {
return navigator.msSaveBlob(blob, fileName);
}
It's quite simple and practical.
Apparently, this solution was found on the Javascript download function created by dandavis.
Old question, but thought I'd add our solution. Here is the code I used on my last project. It's not perfect, but it passed QA in all browsers and IE9+.
downloadCSV(data,fileName){
var blob = new Blob([data], {type: "text/plain;charset=utf-8;"});
var anchor = angular.element('<a/>');
if (window.navigator.msSaveBlob) { // IE
window.navigator.msSaveOrOpenBlob(blob, fileName)
} else if (navigator.userAgent.search("Firefox") !== -1) { // Firefox
anchor.css({display: 'none'});
angular.element(document.body).append(anchor);
anchor.attr({
href: 'data:attachment/csv;charset=utf-8,' + encodeURIComponent(data),
target: '_blank',
download: fileName
})[0].click();
anchor.remove();
} else { // Chrome
anchor.attr({
href: URL.createObjectURL(blob),
target: '_blank',
download: fileName
})[0].click();
}
}
Using the ms specific API worked best for us in IE. Also note that some browsers require the anchor to actually be in the DOM for the download attribute to work, whereas Chrome, for example, does not. Also, we found some inconsistencies with how Blobs work in various browsers. Some browsers also have an export limit. This allows the largest possible CSV export in each browser afaik.
As of build 10547+, the Microsoft Edge browser is now supporting the download attribute on a tags.
Download Image
Edge features update: https://dev.windows.com/en-us/microsoft-edge/platform/changelog/desktop/10547/
a[download] standard: http://www.w3.org/html/wg/drafts/html/master/links.html#attr-hyperlink-download
This code fragment allows saving blob in the file in IE, Edge and other modern browsers.
var request = new XMLHttpRequest();
request.onreadystatechange = function() {
if (request.readyState === 4 && request.status === 200) {
// Extract filename form response using regex
var filename = "";
var disposition = request.getResponseHeader('Content-Disposition');
if (disposition && disposition.indexOf('attachment') !== -1) {
var filenameRegex = /filename[^;=\n]*=((['"]).*?\2|[^;\n]*)/;
var matches = filenameRegex.exec(disposition);
if (matches != null && matches[1]) filename = matches[1].replace(/['"]/g, '');
}
if (window.navigator.msSaveOrOpenBlob) { // for IE and Edge
window.navigator.msSaveBlob(request.response, filename);
} else {
// for modern browsers
var a = document.createElement('a');
a.href = window.URL.createObjectURL(request.response);
a.download = filename;
a.style.display = 'none';
document.body.appendChild(a);
a.click();
}
}
button.disabled = false;
dragArea.removeAttribute('spinner-visible');
// spinner.style.display = "none";
};
request.open("POST", "download");
request.responseType = 'blob';
request.send(formData);
For IE and Edge use: msSaveBlob
Use my function
It bind your atag to download file in IE
function MS_bindDownload(el) {
if(el === undefined){
throw Error('I need element parameter.');
}
if(el.href === ''){
throw Error('The element has no href value.');
}
var filename = el.getAttribute('download');
if (filename === null || filename === ''){
var tmp = el.href.split('/');
filename = tmp[tmp.length-1];
}
el.addEventListener('click', function (evt) {
evt.preventDefault();
var xhr = new XMLHttpRequest();
xhr.onloadstart = function () {
xhr.responseType = 'blob';
};
xhr.onload = function () {
navigator.msSaveOrOpenBlob(xhr.response, filename);
};
xhr.open("GET", el.href, true);
xhr.send();
})
}
Append child first and then click
Or you can use window.location= 'url' ;
As mentioned in earlier answer , download attribute is not supported in IE . As a work around, you can use iFrames to download the file . Here is a sample code snippet.
function downloadFile(url){
var oIframe = window.document.createElement('iframe');
var $body = jQuery(document.body);
var $oIframe = jQuery(oIframe).attr({
src: url,
style: 'display:none'
});
$body.append($oIframe);
}
I copied the code from here and updated it for ES6 and ESLint and added it to my project.
You can save the code to download.js and use it in your project like this:
import Download from './download'
Download('/somefile.png', 'somefile.png')
Note that it supports dataURLs (from canvas objects), and more... see https://github.com/rndme for details.
I just have the most basic (I think) implementation of Chrome's Web Audio.
I'm on Chrome 13 with Web Audio enabled, but my sound just doesn't play. I see it gets loaded (http://pieterhordijk.com/sandbox/html5-audio-api/webkit-audiocontext-interface), but it just doesn't play.
window.onload = init;
var context;
var source;
function loadSample(url) {
var request = new XMLHttpRequest();
request.open("GET", url, true);
request.responseType = "arraybuffer";
request.onload = function() {
source.buffer = context.createBuffer(request.response, false);
source.looping = true;
source.noteOn(0);
}
request.send();
}
function init()
{
context = new webkitAudioContext();
source = context.createBufferSource();
loadSample("/sandbox/test.oga");
}
Ok found the answer myself I had to connect it to the output.
source.connect(context.destination);