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authorGaming4JC <g4jc@hyperbola.info>2020-01-05 16:09:19 -0500
committerGaming4JC <g4jc@hyperbola.info>2020-01-26 15:50:29 -0500
commit6bbb9f062b63c5a920b1d240ba0d8575150dd01a (patch)
treefbb5b2857a0fcddce7873a4ecb94fe17af8840fb
parent01dfbc928f45caccc5d27704a0e98d61e92a64f1 (diff)
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Bug 1334044: Replace detached callback (v0) with disconnected callback (v1).
Tag UXP Issue #1344
-rw-r--r--dom/base/CustomElementRegistry.cpp28
-rw-r--r--dom/base/CustomElementRegistry.h5
-rw-r--r--dom/base/Element.cpp11
-rw-r--r--dom/base/nsIDocument.h2
-rw-r--r--dom/webidl/WebComponents.webidl4
-rw-r--r--testing/web-platform/meta/custom-elements/disconnected-callbacks.html.ini48
-rw-r--r--testing/web-platform/meta/custom-elements/reactions/ChildNode.html.ini4
-rw-r--r--testing/web-platform/meta/custom-elements/reactions/Node.html.ini4
-rw-r--r--testing/web-platform/meta/custom-elements/reactions/Range.html.ini6
9 files changed, 28 insertions, 84 deletions
diff --git a/dom/base/CustomElementRegistry.cpp b/dom/base/CustomElementRegistry.cpp
index 67498a59b..069611f65 100644
--- a/dom/base/CustomElementRegistry.cpp
+++ b/dom/base/CustomElementRegistry.cpp
@@ -57,8 +57,8 @@ CustomElementCallback::Call()
case nsIDocument::eConnected:
static_cast<LifecycleConnectedCallback *>(mCallback.get())->Call(mThisObject, rv);
break;
- case nsIDocument::eDetached:
- static_cast<LifecycleDetachedCallback *>(mCallback.get())->Call(mThisObject, rv);
+ case nsIDocument::eDisconnected:
+ static_cast<LifecycleDisconnectedCallback *>(mCallback.get())->Call(mThisObject, rv);
break;
case nsIDocument::eAttributeChanged:
static_cast<LifecycleAttributeChangedCallback *>(mCallback.get())->Call(mThisObject,
@@ -354,9 +354,9 @@ CustomElementRegistry::CreateCustomElementCallback(
}
break;
- case nsIDocument::eDetached:
- if (aDefinition->mCallbacks->mDetachedCallback.WasPassed()) {
- func = aDefinition->mCallbacks->mDetachedCallback.Value();
+ case nsIDocument::eDisconnected:
+ if (aDefinition->mCallbacks->mDisconnectedCallback.WasPassed()) {
+ func = aDefinition->mCallbacks->mDisconnectedCallback.Value();
}
break;
@@ -1025,14 +1025,14 @@ CustomElementReactionsStack::Enqueue(Element* aElement,
// Add element to the current element queue.
if (!mReactionsStack.IsEmpty()) {
- mReactionsStack.LastElement()->AppendElement(do_GetWeakReference(aElement));
+ mReactionsStack.LastElement()->AppendElement(aElement);
elementData->mReactionQueue.AppendElement(aReaction);
return;
}
// If the custom element reactions stack is empty, then:
// Add element to the backup element queue.
- mBackupQueue.AppendElement(do_GetWeakReference(aElement));
+ mBackupQueue.AppendElement(aElement);
elementData->mReactionQueue.AppendElement(aReaction);
if (mIsBackupQueueProcessing) {
@@ -1070,14 +1070,18 @@ CustomElementReactionsStack::InvokeReactions(ElementQueue* aElementQueue,
// Note: It's possible to re-enter this method.
for (uint32_t i = 0; i < aElementQueue->Length(); ++i) {
- nsCOMPtr<Element> element = do_QueryReferent(aElementQueue->ElementAt(i));
+ Element* element = aElementQueue->ElementAt(i);
if (!element) {
continue;
}
RefPtr<CustomElementData> elementData = element->GetCustomElementData();
- MOZ_ASSERT(elementData, "CustomElementData should exist");
+ if (!elementData) {
+ // This happens when the document is destroyed and the element is already
+ // unlinked, no need to fire the callbacks in this case.
+ return;
+ }
auto& reactions = elementData->mReactionQueue;
for (uint32_t j = 0; j < reactions.Length(); ++j) {
@@ -1132,9 +1136,9 @@ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(CustomElementDefinition)
cb.NoteXPCOMChild(callbacks->mConnectedCallback.Value());
}
- if (callbacks->mDetachedCallback.WasPassed()) {
- NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "mCallbacks->mDetachedCallback");
- cb.NoteXPCOMChild(callbacks->mDetachedCallback.Value());
+ if (callbacks->mDisconnectedCallback.WasPassed()) {
+ NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "mCallbacks->mDisconnectedCallback");
+ cb.NoteXPCOMChild(callbacks->mDisconnectedCallback.Value());
}
NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(cb, "mConstructor");
diff --git a/dom/base/CustomElementRegistry.h b/dom/base/CustomElementRegistry.h
index f73a8707e..30e2c00ab 100644
--- a/dom/base/CustomElementRegistry.h
+++ b/dom/base/CustomElementRegistry.h
@@ -256,11 +256,12 @@ public:
{
}
- // nsWeakPtr is a weak pointer of Element
+ // Hold a strong reference of Element so that it does not get cycle collected
+ // before the reactions in its reaction queue are invoked.
// The element reaction queues are stored in CustomElementData.
// We need to lookup ElementReactionQueueMap again to get relevant reaction queue.
// The choice of 1 for the auto size here is based on gut feeling.
- typedef AutoTArray<nsWeakPtr, 1> ElementQueue;
+ typedef AutoTArray<RefPtr<Element>, 1> ElementQueue;
/**
* Enqueue a custom element upgrade reaction
diff --git a/dom/base/Element.cpp b/dom/base/Element.cpp
index bfa0869c3..bc1e27ba7 100644
--- a/dom/base/Element.cpp
+++ b/dom/base/Element.cpp
@@ -1983,11 +1983,12 @@ Element::UnbindFromTree(bool aDeep, bool aNullParent)
document->ClearBoxObjectFor(this);
- // Detached must be enqueued whenever custom element is removed from
- // the document and this document has a browsing context.
- if (GetCustomElementData() && document->GetDocShell()) {
- // Enqueue a detached callback for the custom element.
- nsContentUtils::EnqueueLifecycleCallback(nsIDocument::eDetached, this);
+ // Disconnected must be enqueued whenever a connected custom element becomes
+ // disconnected.
+ if (CustomElementRegistry::IsCustomElementEnabled() &&
+ GetCustomElementData()) {
+ nsContentUtils::EnqueueLifecycleCallback(nsIDocument::eDisconnected,
+ this);
}
}
diff --git a/dom/base/nsIDocument.h b/dom/base/nsIDocument.h
index 0f05bbfcb..c620d1d09 100644
--- a/dom/base/nsIDocument.h
+++ b/dom/base/nsIDocument.h
@@ -2581,7 +2581,7 @@ public:
enum ElementCallbackType {
eCreated,
eConnected,
- eDetached,
+ eDisconnected,
eAttributeChanged
};
diff --git a/dom/webidl/WebComponents.webidl b/dom/webidl/WebComponents.webidl
index 8623bcbae..2c2d9fb53 100644
--- a/dom/webidl/WebComponents.webidl
+++ b/dom/webidl/WebComponents.webidl
@@ -12,7 +12,7 @@
callback LifecycleCreatedCallback = void();
callback LifecycleConnectedCallback = void();
-callback LifecycleDetachedCallback = void();
+callback LifecycleDisconnectedCallback = void();
callback LifecycleAttributeChangedCallback = void(DOMString attrName,
DOMString? oldValue,
DOMString? newValue,
@@ -21,7 +21,7 @@ callback LifecycleAttributeChangedCallback = void(DOMString attrName,
dictionary LifecycleCallbacks {
LifecycleCreatedCallback? createdCallback;
LifecycleConnectedCallback? connectedCallback;
- LifecycleDetachedCallback? detachedCallback;
+ LifecycleDisconnectedCallback? disconnectedCallback;
LifecycleAttributeChangedCallback? attributeChangedCallback;
};
diff --git a/testing/web-platform/meta/custom-elements/disconnected-callbacks.html.ini b/testing/web-platform/meta/custom-elements/disconnected-callbacks.html.ini
index 631dc8b5d..03c6f9937 100644
--- a/testing/web-platform/meta/custom-elements/disconnected-callbacks.html.ini
+++ b/testing/web-platform/meta/custom-elements/disconnected-callbacks.html.ini
@@ -1,11 +1,5 @@
[disconnected-callbacks.html]
type: testharness
- [Removing a custom element from the document must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
- [Removing an ancestor of custom element from the document must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
[Removing a custom element from a shadow tree in the document must enqueue and invoke disconnectedCallback]
expected: FAIL
@@ -15,12 +9,6 @@
[Removing a custom element from a detached shadow tree that belongs to the document must not enqueue and invoke disconnectedCallback]
expected: FAIL
- [Removing a custom element from the document of the template elements must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
- [Removing an ancestor of custom element from the document of the template elements must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
[Removing a custom element from a shadow tree in the document of the template elements must enqueue and invoke disconnectedCallback]
expected: FAIL
@@ -30,12 +18,6 @@
[Removing a custom element from a detached shadow tree that belongs to the document of the template elements must not enqueue and invoke disconnectedCallback]
expected: FAIL
- [Removing a custom element from a new document must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
- [Removing an ancestor of custom element from a new document must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
[Removing a custom element from a shadow tree in a new document must enqueue and invoke disconnectedCallback]
expected: FAIL
@@ -45,12 +27,6 @@
[Removing a custom element from a detached shadow tree that belongs to a new document must not enqueue and invoke disconnectedCallback]
expected: FAIL
- [Removing a custom element from a cloned document must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
- [Removing an ancestor of custom element from a cloned document must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
[Removing a custom element from a shadow tree in a cloned document must enqueue and invoke disconnectedCallback]
expected: FAIL
@@ -60,12 +36,6 @@
[Removing a custom element from a detached shadow tree that belongs to a cloned document must not enqueue and invoke disconnectedCallback]
expected: FAIL
- [Removing a custom element from a document created by createHTMLDocument must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
- [Removing an ancestor of custom element from a document created by createHTMLDocument must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
[Removing a custom element from a shadow tree in a document created by createHTMLDocument must enqueue and invoke disconnectedCallback]
expected: FAIL
@@ -75,12 +45,6 @@
[Removing a custom element from a detached shadow tree that belongs to a document created by createHTMLDocument must not enqueue and invoke disconnectedCallback]
expected: FAIL
- [Removing a custom element from an HTML document created by createDocument must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
- [Removing an ancestor of custom element from an HTML document created by createDocument must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
[Removing a custom element from a shadow tree in an HTML document created by createDocument must enqueue and invoke disconnectedCallback]
expected: FAIL
@@ -90,12 +54,6 @@
[Removing a custom element from a detached shadow tree that belongs to an HTML document created by createDocument must not enqueue and invoke disconnectedCallback]
expected: FAIL
- [Removing a custom element from the document of an iframe must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
- [Removing an ancestor of custom element from the document of an iframe must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
[Removing a custom element from a shadow tree in the document of an iframe must enqueue and invoke disconnectedCallback]
expected: FAIL
@@ -105,12 +63,6 @@
[Removing a custom element from a detached shadow tree that belongs to the document of an iframe must not enqueue and invoke disconnectedCallback]
expected: FAIL
- [Removing a custom element from an HTML document fetched by XHR must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
- [Removing an ancestor of custom element from an HTML document fetched by XHR must enqueue and invoke disconnectedCallback]
- expected: FAIL
-
[Removing a custom element from a shadow tree in an HTML document fetched by XHR must enqueue and invoke disconnectedCallback]
expected: FAIL
diff --git a/testing/web-platform/meta/custom-elements/reactions/ChildNode.html.ini b/testing/web-platform/meta/custom-elements/reactions/ChildNode.html.ini
index 637a74dbc..edef1ed9f 100644
--- a/testing/web-platform/meta/custom-elements/reactions/ChildNode.html.ini
+++ b/testing/web-platform/meta/custom-elements/reactions/ChildNode.html.ini
@@ -8,7 +8,3 @@
[replaceWith on ChildNode must enqueue a disconnected reaction, an adopted reaction, and a connected reaction when the custom element was in another document]
expected: FAIL
-
- [replaceWith on ChildNode must enqueue a disconnected reaction]
- expected: FAIL
-
diff --git a/testing/web-platform/meta/custom-elements/reactions/Node.html.ini b/testing/web-platform/meta/custom-elements/reactions/Node.html.ini
index e6bacabbd..b65e80813 100644
--- a/testing/web-platform/meta/custom-elements/reactions/Node.html.ini
+++ b/testing/web-platform/meta/custom-elements/reactions/Node.html.ini
@@ -29,7 +29,3 @@
[replaceChild on ChildNode must enqueue a disconnected reaction, an adopted reaction, and a connected reaction when the custom element was in another document]
expected: FAIL
-
- [removeChild on ChildNode must enqueue a disconnected reaction]
- expected: FAIL
-
diff --git a/testing/web-platform/meta/custom-elements/reactions/Range.html.ini b/testing/web-platform/meta/custom-elements/reactions/Range.html.ini
index 21de92aa3..e44d6d389 100644
--- a/testing/web-platform/meta/custom-elements/reactions/Range.html.ini
+++ b/testing/web-platform/meta/custom-elements/reactions/Range.html.ini
@@ -1,11 +1,5 @@
[Range.html]
type: testharness
- [deleteContents on Range must enqueue a disconnected reaction]
- expected: FAIL
-
- [extractContents on Range must enqueue a disconnected reaction]
- expected: FAIL
-
[cloneContents on Range must enqueue an attributeChanged reaction when cloning an element with an observed attribute]
expected: FAIL