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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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15
dom/interfaces/events/nsIDOMEventTarget.idl
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@ -13,6 +13,7 @@
using mozilla::dom::Nullable;
namespace mozilla {
class EventChainVisitor;
class EventChainPostVisitor;
class EventChainPreVisitor;
class EventListenerManager;
@ -224,7 +225,19 @@ interface nsIDOMEventTarget : nsISupports
* @note Only EventDispatcher should call this method.
*/
[noscript, nostdcall]
void PreHandleEvent(in EventChainPreVisitorRef aVisitor);
void GetEventTargetParent(in EventChainPreVisitorRef aVisitor);
/**
* Called before the capture phase of the event flow and after event target
* chain creation. This is used to handle those stuffs must be executed before
* dispatch event to DOM
*/
%{C++
virtual nsresult PreHandleEvent(mozilla::EventChainVisitor& aVisitor)
{
return NS_OK;
}
%}
/**
* If EventChainPreVisitor.mWantsWillHandleEvent is set PR_TRUE,