mirror of
https://github.com/element-hq/element-web.git
synced 2024-12-16 23:52:11 +03:00
55 lines
1.8 KiB
JavaScript
55 lines
1.8 KiB
JavaScript
let hasCalled = false;
|
|
function remoteRender(event) {
|
|
const data = event.data;
|
|
|
|
// If we're handling secondary calls, start from scratch
|
|
if (hasCalled) {
|
|
document.body.replaceWith(document.createElement("BODY"));
|
|
}
|
|
hasCalled = true;
|
|
|
|
const img = document.createElement("span"); // we'll mask it as an image
|
|
img.id = "img";
|
|
|
|
const a = document.createElement("a");
|
|
a.id = "a";
|
|
a.rel = "noreferrer noopener";
|
|
a.download = data.download;
|
|
a.style = data.style;
|
|
a.style.fontFamily = "Arial, Helvetica, Sans-Serif";
|
|
a.href = window.URL.createObjectURL(data.blob);
|
|
a.appendChild(img);
|
|
a.appendChild(document.createTextNode(data.textContent));
|
|
|
|
// Apply image style after so we can steal the anchor's colour.
|
|
// Style copied from a rendered version of mx_MFileBody_download_icon
|
|
img.style = (data.imgStyle || "" +
|
|
"width: 12px; height: 12px;" +
|
|
"-webkit-mask-size: 12px;" +
|
|
"mask-size: 12px;" +
|
|
"-webkit-mask-position: center;" +
|
|
"mask-position: center;" +
|
|
"-webkit-mask-repeat: no-repeat;" +
|
|
"mask-repeat: no-repeat;" +
|
|
"display: inline-block;") + "" +
|
|
|
|
// Always add these styles
|
|
`-webkit-mask-image: url('${data.imgSrc}');` +
|
|
`mask-image: url('${data.imgSrc}');` +
|
|
`background-color: ${a.style.color};`;
|
|
|
|
const body = document.body;
|
|
// Don't display scrollbars if the link takes more than one line to display.
|
|
body.style = "margin: 0px; overflow: hidden";
|
|
body.appendChild(a);
|
|
|
|
if (event.data.auto) {
|
|
a.click(); // try to trigger download automatically
|
|
}
|
|
}
|
|
|
|
window.onmessage = function(e) {
|
|
if (e.origin === window.location.origin) {
|
|
if (e.data.blob) remoteRender(e);
|
|
}
|
|
};
|