Commit ab007182 authored by Kai Uwe Broulik's avatar Kai Uwe Broulik 🍇

[Desktop Containment] Explicitly reject Firefox tab drops

This is a real-world fix for a long-standing issue.
Mime-type determination and everything is asynchronous, so we cannot know in advance
whether to accept or reject the drop.

BUG: 337711
FIXED-IN: 5.12.0

Differential Revision:
parent 6ecd2e3c
......@@ -243,6 +243,12 @@ FolderViewDropArea {
if (isContainment && plasmoid.immutable && !(isFolder && FolderTools.isFileDrag(event))) {
// Firefox tabs are regular drags. Since all of our drop handling is asynchronous
// we would accept this drop and have Firefox not spawn a new window. (Bug 337711)
if (event.mimeData.formats.indexOf("application/x-moz-tabbrowser-tab") > -1) {
onDragMove: {
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