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| author | Matt A. Tobin <email@mattatobin.com> | 2020-04-17 07:35:48 -0400 |
|---|---|---|
| committer | Matt A. Tobin <email@mattatobin.com> | 2020-04-17 07:35:48 -0400 |
| commit | 3508e79b1fe7fc928eed2f3c7bf2d628c53fbf17 (patch) | |
| tree | c793eb598816afa68a560c4224b06ca15b8ad55c /dom/html | |
| parent | f164962a3dc53f4823dfff6c77e7972c72d4c61f (diff) | |
| download | uxp-3508e79b1fe7fc928eed2f3c7bf2d628c53fbf17.tar.gz | |
Bug 1409976 - Add `slotchange` event
* Add support for `slotchange` event
* Signal `slotchange` when slot's assigned nodes changes
Tag #1375
Diffstat (limited to 'dom/html')
| -rw-r--r-- | dom/html/HTMLSlotElement.cpp | 21 | ||||
| -rw-r--r-- | dom/html/HTMLSlotElement.h | 3 |
2 files changed, 24 insertions, 0 deletions
diff --git a/dom/html/HTMLSlotElement.cpp b/dom/html/HTMLSlotElement.cpp index b13729a09b..18b8ef87bf 100644 --- a/dom/html/HTMLSlotElement.cpp +++ b/dom/html/HTMLSlotElement.cpp @@ -4,6 +4,7 @@ * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ +#include "mozilla/dom/DocGroup.h" #include "mozilla/dom/HTMLSlotElement.h" #include "mozilla/dom/HTMLSlotElementBinding.h" #include "mozilla/dom/HTMLUnknownElement.h" @@ -204,6 +205,26 @@ HTMLSlotElement::ClearAssignedNodes() mAssignedNodes.Clear(); } +void +HTMLSlotElement::EnqueueSlotChangeEvent() const +{ + DocGroup* docGroup = OwnerDoc()->GetDocGroup(); + if (!docGroup) { + return; + } + + docGroup->SignalSlotChange(this); +} + +void +HTMLSlotElement::FireSlotChangeEvent() +{ + nsContentUtils::DispatchTrustedEvent(OwnerDoc(), + static_cast<nsIContent*>(this), + NS_LITERAL_STRING("slotchange"), true, + false); +} + JSObject* HTMLSlotElement::WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) { diff --git a/dom/html/HTMLSlotElement.h b/dom/html/HTMLSlotElement.h index 4f85462004..0494a654e6 100644 --- a/dom/html/HTMLSlotElement.h +++ b/dom/html/HTMLSlotElement.h @@ -62,6 +62,9 @@ public: void RemoveAssignedNode(nsINode* aNode); void ClearAssignedNodes(); + void EnqueueSlotChangeEvent() const; + void FireSlotChangeEvent(); + protected: virtual ~HTMLSlotElement(); virtual JSObject* |