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Revert "Fullscreen from iframe (#1236)" (#1247)

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This reverts commit 19cdc15aa314760446866a1bcc2db99a80479683.
This commit is contained in:
Samuel Mannehed 2019-05-25 02:51:38 +02:00 committed by Lauri Kasanen
parent 4c635f65d3
commit e2d86788ba
1 changed files with 20 additions and 59 deletions
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79
kasmweb/app/ui.js
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@ -1537,67 +1537,28 @@ const UI = {
* ------v------*/
toggleFullscreen() {
// Determine the document using fullscreen. This may either be
// just the "document", but if using the viewer in an iframe, you need
// to use the parent window's "document" instead.
let doc = document;
if (window.self !== window.top) {
doc = window.parent.document;
}
// Check the fullscreen status using the correct document as
// a reference. The same document is then used to exit fullscreen.
if (doc.fullscreenElement || // alternative standard method
doc.mozFullScreenElement || // currently working methods
doc.webkitFullscreenElement ||
doc.msFullscreenElement) {
if (doc.exitFullscreen) {
doc.exitFullscreen();
} else if (doc.mozCancelFullScreen) {
doc.mozCancelFullScreen();
} else if (doc.webkitExitFullscreen) {
doc.webkitExitFullscreen();
} else if (doc.msExitFullscreen) {
doc.msExitFullscreen();
if (document.fullscreenElement || // alternative standard method
document.mozFullScreenElement || // currently working methods
document.webkitFullscreenElement ||
document.msFullscreenElement) {
if (document.exitFullscreen) {
document.exitFullscreen();
} else if (document.mozCancelFullScreen) {
document.mozCancelFullScreen();
} else if (document.webkitExitFullscreen) {
document.webkitExitFullscreen();
} else if (document.msExitFullscreen) {
document.msExitFullscreen();
}
} else {
// To activate fullscreen, we need to find the correct document
// element, which is usually "document.documentElement". But when
// using the viewer in an iframe, this is actually the iframe
// element itself in the parent document.
let doc_el = document.documentElement;
if (window.self !== window.top) {
// Seek out the correct iframe from the parent document.
let iframes = window.parent.document
.getElementsByTagName('iframe');
for (let i in iframes) {
let content_doc = null;
try {
content_doc = iframes[i].contentDocument;
} catch (err) {
// I may not be permitted to read the contentDocument
// of the iframe, but then it can't be me, so ignore.
}
if (content_doc === document) {
doc_el = iframes[i];
// To use .body.msRequestFullscreen in IE, we need to
// set the document element accordingly.
// Note that the <iframe> must have the attribute
// "allowfullscreen" set for IE to allow the feature.
doc = iframes[i].contentDocument;
break;
}
}
}
// Activate fullscreen. All except MS use the document element for
// this. The behaviour of body.msRequestFullscreen is untested.
if (doc_el.requestFullscreen) {
doc_el.requestFullscreen();
} else if (doc_el.mozRequestFullScreen) {
doc_el.mozRequestFullScreen();
} else if (doc_el.webkitRequestFullscreen) {
doc_el.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
} else if (doc.body.msRequestFullscreen) {
doc.body.msRequestFullscreen();
if (document.documentElement.requestFullscreen) {
document.documentElement.requestFullscreen();
} else if (document.documentElement.mozRequestFullScreen) {
document.documentElement.mozRequestFullScreen();
} else if (document.documentElement.webkitRequestFullscreen) {
document.documentElement.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
} else if (document.body.msRequestFullscreen) {
document.body.msRequestFullscreen();
}
}
UI.updateFullscreenButton();