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Issue #1592 - Part 9: Post a restyle event after changing the slot of a slottable

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FranklinDM 2023-03-19 23:43:34 +08:00 • committed by roytam1
commit 9a071f3b7a
1 changed files with 11 additions and 0 deletions
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11
dom/base/ShadowRoot.cpp
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@ -9,6 +9,7 @@
#include "mozilla/dom/DocumentFragment.h"
#include "ChildIterator.h"
#include "nsContentUtils.h"
#include "nsLayoutUtils.h"
#include "nsDOMClassInfoID.h"
#include "nsIDOMHTMLElement.h"
#include "nsIStyleSheetLinkingElement.h"
@ -162,6 +163,16 @@ ShadowRoot::AddSlot(HTMLSlotElement* aSlot)
oldSlot->RemoveAssignedNode(assignedNode);
currentSlot->AppendAssignedNode(assignedNode);
Element* restyleElement;
if (assignedNode->IsElement()) {
restyleElement = assignedNode->AsElement();
} else {
// This is likely a text node. Use the host instead.
restyleElement = GetHost();
}
nsLayoutUtils::PostRestyleEvent(
restyleElement, eRestyle_Subtree, nsChangeHint(0));
doEnqueueSlotChange = true;
}