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Bug 1305458 - Changing -moz-appearence on hover breaks change event

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* Rename nsIDOMEventTarget::PreHandleEvent to nsIDOMEventTarget::GetEventTargetParent
* Add nsIDOMEventTarget::PreHandleEvent
* Add EventTargetChainItem::GetFirstEventTarget
* Call EventTargetChainItem::PreHandleEvent even it sets mCanHandle=false
* Move form control frame focus/blur from nsGenericHTMLFormElement::GetEventTargetParent to PreHandleEvent
* Move fire change event from HTMLTextAreaElement::GetEventTargetParent to PreHandleEvent
* Refine nsXULElement::GetEventTargetParent
* Move dispatch XUL command from nsXULElement::GetEventTargetParent to PreHandleEvent
* Move fire events and set value from HTMLInputElement::GetEventTargetParent to PreHandleEvent
* Add test case
* Let HTMLInputElement delegate event handling to it's parent class
* Refine EventTargetChain flags to reduce overheads
* Refine event target chain creation
* Refine assertion in EventTargetChainItem::Create

Tag #1375
This commit is contained in:
Matt A. Tobin 2020-04-14 21:24:51 -04:00 • committed by Roy Tam
commit cb2b45e472
70 changed files with 547 additions and 258 deletions
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21
dom/html/nsGenericHTMLElement.cpp
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@ -607,16 +607,16 @@ nsGenericHTMLElement::CheckHandleEventForAnchorsPreconditions(
}
nsresult
nsGenericHTMLElement::PreHandleEventForAnchors(EventChainPreVisitor& aVisitor)
nsGenericHTMLElement::GetEventTargetParentForAnchors(EventChainPreVisitor& aVisitor)
{
nsresult rv = nsGenericHTMLElementBase::PreHandleEvent(aVisitor);
nsresult rv = nsGenericHTMLElementBase::GetEventTargetParent(aVisitor);
NS_ENSURE_SUCCESS(rv, rv);
if (!CheckHandleEventForAnchorsPreconditions(aVisitor)) {
return NS_OK;
}
return PreHandleEventForLinks(aVisitor);
return GetEventTargetParentForLinks(aVisitor);
}
nsresult
@ -2081,7 +2081,19 @@ nsGenericHTMLFormElement::AfterSetAttr(int32_t aNameSpaceID, nsIAtom* aName,
}
nsresult
nsGenericHTMLFormElement::PreHandleEvent(EventChainPreVisitor& aVisitor)
nsGenericHTMLFormElement::GetEventTargetParent(EventChainPreVisitor& aVisitor)
{
if (aVisitor.mEvent->IsTrusted() && (aVisitor.mEvent->mMessage == eFocus ||
aVisitor.mEvent->mMessage == eBlur)) {
// We have to handle focus/blur event to change focus states in
// PreHandleEvent to prevent it breaks event target chain creation.
aVisitor.mWantsPreHandleEvent = true;
}
return nsGenericHTMLElement::GetEventTargetParent(aVisitor);
}
nsresult
nsGenericHTMLFormElement::PreHandleEvent(EventChainVisitor& aVisitor)
{
if (aVisitor.mEvent->IsTrusted()) {
switch (aVisitor.mEvent->mMessage) {
@ -2105,7 +2117,6 @@ nsGenericHTMLFormElement::PreHandleEvent(EventChainPreVisitor& aVisitor)
break;
}
}
return nsGenericHTMLElement::PreHandleEvent(aVisitor);
}