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Remove code-paths only relevant for IE 11/Edge (non-Chromium based) from the web/ folder

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This patch purposely starts small, by removing IE-specific code from various JS/CSS files in the `web/` folder.

There's obviously lots of potential for additional clean-up, especially the removal of no longer necessary polyfills in `src/shared/compatibility.js`, however that will require some care considering that certain polyfills may also be necessary for e.g. Node.js or the Chromium-extension as well.
Generally speaking, once we start removing polyfills it's probably a good idea to consult the compatibility information on https://developer.mozilla.org/ and also https://caniuse.com/ first. (Deciding on the lowest supported Chromium version, for the extension, would also seem like a good idea.)
This commit is contained in:
Jonas Jenwald 2020-09-05 17:00:52 +02:00
parent 4caa14b4dc
commit 87b002c52f
9 changed files with 9 additions and 47 deletions
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15
web/download_manager.js
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@ -35,7 +35,7 @@ function download(blobUrl, filename) {
if ("download" in a) {
a.download = filename;
}
// <a> must be in the document for IE and recent Firefox versions,
// <a> must be in the document for recent Firefox versions,
// otherwise .click() is ignored.
(document.body || document.documentElement).appendChild(a);
a.click();
@ -51,11 +51,6 @@ class DownloadManager {
}
downloadData(data, filename, contentType) {
if (navigator.msSaveBlob) {
// IE10 and above
navigator.msSaveBlob(new Blob([data], { type: contentType }), filename);
return;
}
const blobUrl = createObjectURL(
data,
contentType,
@ -71,14 +66,6 @@ class DownloadManager {
* the "open with" dialog.
*/
download(blob, url, filename, sourceEventType = "download") {
if (navigator.msSaveBlob) {
// IE10 / IE11
if (!navigator.msSaveBlob(blob, filename)) {
this.downloadUrl(url, filename);
}
return;
}
if (viewerCompatibilityParams.disableCreateObjectURL) {
// URL.createObjectURL is not supported
this.downloadUrl(url, filename);