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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
parent 6f6d1f6ff7
commit 5352b69a92
70 changed files with 545 additions and 256 deletions
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dom/html/HTMLTextAreaElement.cpp
+14 -3
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@@ -506,7 +506,7 @@ HTMLTextAreaElement::IsDisabledForEvents(EventMessage aMessage)
}
nsresult
HTMLTextAreaElement::PreHandleEvent(EventChainPreVisitor& aVisitor)
HTMLTextAreaElement::GetEventTargetParent(EventChainPreVisitor& aVisitor)
{
aVisitor.mCanHandle = false;
if (IsDisabledForEvents(aVisitor.mEvent->mMessage)) {
@@ -534,11 +534,22 @@ HTMLTextAreaElement::PreHandleEvent(EventChainPreVisitor& aVisitor)
aVisitor.mEvent->mFlags.mNoContentDispatch = false;
}
// Fire onchange (if necessary), before we do the blur, bug 370521.
if (aVisitor.mEvent->mMessage == eBlur) {
FireChangeEventIfNeeded();
// Set mWantsPreHandleEvent and fire change event in PreHandleEvent to
// prevent it breaks event target chain creation.
aVisitor.mWantsPreHandleEvent = true;
}
return nsGenericHTMLFormElementWithState::GetEventTargetParent(aVisitor);
}
nsresult
HTMLTextAreaElement::PreHandleEvent(EventChainVisitor& aVisitor)
{
if (aVisitor.mEvent->mMessage == eBlur) {
// Fire onchange (if necessary), before we do the blur, bug 370521.
FireChangeEventIfNeeded();
}
return nsGenericHTMLFormElementWithState::PreHandleEvent(aVisitor);
}