Bug 1133732. Make button box frames listen for blurs so they de-activate on blur. r=smaug

This commit is contained in:
Timothy Nikkel 2015-03-29 18:05:00 -05:00
parent ee8e437fa3
commit 90c463cb80
2 changed files with 103 additions and 5 deletions

View File

@ -22,6 +22,29 @@
using namespace mozilla;
NS_IMPL_ISUPPORTS(nsButtonBoxFrame::nsButtonBoxListener, nsIDOMEventListener)
nsresult
nsButtonBoxFrame::nsButtonBoxListener::HandleEvent(nsIDOMEvent* aEvent)
{
if (!mButtonBoxFrame) {
return NS_OK;
}
nsAutoString eventType;
aEvent->GetType(eventType);
if (eventType.EqualsLiteral("blur")) {
mButtonBoxFrame->Blurred();
return NS_OK;
}
NS_ABORT();
return NS_OK;
}
//
// NS_NewXULButtonFrame
//
@ -35,6 +58,37 @@ NS_NewButtonBoxFrame (nsIPresShell* aPresShell, nsStyleContext* aContext)
NS_IMPL_FRAMEARENA_HELPERS(nsButtonBoxFrame)
nsButtonBoxFrame::nsButtonBoxFrame(nsStyleContext* aContext) :
nsBoxFrame(aContext, false),
mButtonBoxListener(nullptr),
mIsHandlingKeyEvent(false)
{
UpdateMouseThrough();
}
void
nsButtonBoxFrame::Init(nsIContent* aContent,
nsContainerFrame* aParent,
nsIFrame* aPrevInFlow)
{
nsBoxFrame::Init(aContent, aParent, aPrevInFlow);
mButtonBoxListener = new nsButtonBoxListener(this);
mContent->AddSystemEventListener(NS_LITERAL_STRING("blur"), mButtonBoxListener, false);
}
void
nsButtonBoxFrame::DestroyFrom(nsIFrame* aDestructRoot)
{
mContent->RemoveSystemEventListener(NS_LITERAL_STRING("blur"), mButtonBoxListener, false);
mButtonBoxListener->mButtonBoxFrame = nullptr;
mButtonBoxListener = nullptr;
nsBoxFrame::DestroyFrom(aDestructRoot);
}
void
nsButtonBoxFrame::BuildDisplayListForChildren(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
@ -67,6 +121,7 @@ nsButtonBoxFrame::HandleEvent(nsPresContext* aPresContext,
// :hover:active state
esm->SetContentState(mContent, NS_EVENT_STATE_HOVER);
esm->SetContentState(mContent, NS_EVENT_STATE_ACTIVE);
mIsHandlingKeyEvent = true;
}
break;
}
@ -95,6 +150,7 @@ nsButtonBoxFrame::HandleEvent(nsPresContext* aPresContext,
break;
}
if (NS_VK_SPACE == keyEvent->keyCode) {
mIsHandlingKeyEvent = false;
// only activate on keyup if we're already in the :hover:active state
NS_ASSERTION(mContent->IsElement(), "How do we have a non-element?");
EventStates buttonState = mContent->AsElement()->State();
@ -122,6 +178,22 @@ nsButtonBoxFrame::HandleEvent(nsPresContext* aPresContext,
return nsBoxFrame::HandleEvent(aPresContext, aEvent, aEventStatus);
}
void
nsButtonBoxFrame::Blurred()
{
NS_ASSERTION(mContent->IsElement(), "How do we have a non-element?");
EventStates buttonState = mContent->AsElement()->State();
if (mIsHandlingKeyEvent &&
buttonState.HasAllStates(NS_EVENT_STATE_ACTIVE |
NS_EVENT_STATE_HOVER)) {
// return to normal state
EventStateManager* esm = PresContext()->EventStateManager();
esm->SetContentState(nullptr, NS_EVENT_STATE_ACTIVE);
esm->SetContentState(nullptr, NS_EVENT_STATE_HOVER);
}
mIsHandlingKeyEvent = false;
}
void
nsButtonBoxFrame::DoMouseClick(WidgetGUIEvent* aEvent, bool aTrustEvent)
{

View File

@ -15,15 +15,18 @@ public:
friend nsIFrame* NS_NewButtonBoxFrame(nsIPresShell* aPresShell);
explicit nsButtonBoxFrame(nsStyleContext* aContext)
:nsBoxFrame(aContext, false) {
UpdateMouseThrough();
}
explicit nsButtonBoxFrame(nsStyleContext* aContext);
virtual void Init(nsIContent* aContent,
nsContainerFrame* aParent,
nsIFrame* aPrevInFlow) override;
virtual void BuildDisplayListForChildren(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists) override;
virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
virtual nsresult HandleEvent(nsPresContext* aPresContext,
mozilla::WidgetGUIEvent* aEvent,
nsEventStatus* aEventStatus) override;
@ -32,6 +35,8 @@ public:
mozilla::WidgetGUIEvent* aEvent)
{ DoMouseClick(aEvent, false); }
void Blurred();
#ifdef DEBUG_FRAME_DUMP
virtual nsresult GetFrameName(nsAString& aResult) const override {
return MakeFrameName(NS_LITERAL_STRING("ButtonBoxFrame"), aResult);
@ -44,6 +49,27 @@ public:
*/
void DoMouseClick(mozilla::WidgetGUIEvent* aEvent, bool aTrustEvent);
void UpdateMouseThrough() override { AddStateBits(NS_FRAME_MOUSE_THROUGH_NEVER); }
private:
class nsButtonBoxListener final : public nsIDOMEventListener
{
public:
explicit nsButtonBoxListener(nsButtonBoxFrame* aButtonBoxFrame) :
mButtonBoxFrame(aButtonBoxFrame)
{ }
NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent) override;
NS_DECL_ISUPPORTS
private:
friend class nsButtonBoxFrame;
virtual ~nsButtonBoxListener() { }
nsButtonBoxFrame* mButtonBoxFrame;
};
nsRefPtr<nsButtonBoxListener> mButtonBoxListener;
bool mIsHandlingKeyEvent;
}; // class nsButtonBoxFrame
#endif /* nsButtonBoxFrame_h___ */