nsresult
HTMLButtonElement::PostHandleEvent(EventChainPostVisitor& aVisitor)
{
nsresult rv = NS_OK;
if (!aVisitor.mPresContext) {
return rv;
}
if (aVisitor.mEventStatus != nsEventStatus_eConsumeNoDefault) {
WidgetMouseEvent* mouseEvent = aVisitor.mEvent->AsMouseEvent();
if (mouseEvent && mouseEvent->IsLeftClickEvent()) {
// DOMActive event should be trusted since the activation is actually
// occurred even if the cause is an untrusted click event.
InternalUIEvent actEvent(true, eLegacyDOMActivate, mouseEvent);
actEvent.mDetail = 1;
nsCOMPtr<nsIPresShell> shell = aVisitor.mPresContext->GetPresShell();
if (shell) {
nsEventStatus status = nsEventStatus_eIgnore;
mInInternalActivate = true;
shell->HandleDOMEventWithTarget(this, &actEvent, &status);
mInInternalActivate = false;
// If activate is cancelled, we must do the same as when click is
// cancelled (revert the checkbox to its original value).
if (status == nsEventStatus_eConsumeNoDefault) {
aVisitor.mEventStatus = status;
}
}
}
}
// mForm is null if the event handler removed us from the document (bug 194582).
if ((aVisitor.mItemFlags & NS_IN_SUBMIT_CLICK) && mForm) {
// tell the form that we are about to exit a click handler
// so the form knows not to defer subsequent submissions
// the pending ones that were created during the handler
// will be flushed or forgoten.
mForm->OnSubmitClickEnd();
}
if (nsEventStatus_eIgnore == aVisitor.mEventStatus) {
switch (aVisitor.mEvent->mMessage) {
case eKeyPress:
case eKeyUp:
{
// For backwards compat, trigger buttons with space or enter
// (bug 25300)
WidgetKeyboardEvent* keyEvent = aVisitor.mEvent->AsKeyboardEvent();
if ((keyEvent->mKeyCode == NS_VK_RETURN &&
eKeyPress == aVisitor.mEvent->mMessage) ||
(keyEvent->mKeyCode == NS_VK_SPACE &&
eKeyUp == aVisitor.mEvent->mMessage)) {
DispatchSimulatedClick(this, aVisitor.mEvent->IsTrusted(),
aVisitor.mPresContext);
aVisitor.mEventStatus = nsEventStatus_eConsumeNoDefault;
}
}
break;
default:
break;
}
if (aVisitor.mItemFlags & NS_OUTER_ACTIVATE_EVENT) {
if (mForm && (mType == NS_FORM_BUTTON_SUBMIT ||
mType == NS_FORM_BUTTON_RESET)) {
InternalFormEvent event(true,
(mType == NS_FORM_BUTTON_RESET) ? eFormReset : eFormSubmit);
event.mOriginator = this;
nsEventStatus status = nsEventStatus_eIgnore;
nsCOMPtr<nsIPresShell> presShell =
aVisitor.mPresContext->GetPresShell();
// If |nsIPresShell::Destroy| has been called due to
// handling the event, the pres context will return
// a null pres shell. See bug 125624.
//
// Using presShell to dispatch the event. It makes sure that
// event is not handled if the window is being destroyed.
if (presShell && (event.mMessage != eFormSubmit ||
mForm->SubmissionCanProceed(this))) {
// TODO: removing this code and have the submit event sent by the form
// see bug 592124.
// Hold a strong ref while dispatching
RefPtr<HTMLFormElement> form(mForm);
presShell->HandleDOMEventWithTarget(form, &event, &status);
aVisitor.mEventStatus = nsEventStatus_eConsumeNoDefault;
}
}
}
} else if ((aVisitor.mItemFlags & NS_IN_SUBMIT_CLICK) && mForm) {
// Tell the form to flush a possible pending submission.
// the reason is that the script returned false (the event was
// not ignored) so if there is a stored submission, it needs to
// be submitted immediatelly.
// Note, NS_IN_SUBMIT_CLICK is set only when we're in outer activate event.
mForm->FlushPendingSubmission();
} //if
return rv;
}
nsresult
HTMLButtonElement::PostHandleEvent(EventChainPostVisitor& aVisitor)
{
nsresult rv = NS_OK;
if (!aVisitor.mPresContext) {
return rv;
}
if (aVisitor.mEventStatus != nsEventStatus_eConsumeNoDefault) {
WidgetMouseEvent* mouseEvent = aVisitor.mEvent->AsMouseEvent();
if (mouseEvent && mouseEvent->IsLeftClickEvent()) {
// DOMActive event should be trusted since the activation is actually
// occurred even if the cause is an untrusted click event.
InternalUIEvent actEvent(true, eLegacyDOMActivate, mouseEvent);
actEvent.mDetail = 1;
nsCOMPtr<nsIPresShell> shell = aVisitor.mPresContext->GetPresShell();
if (shell) {
nsEventStatus status = nsEventStatus_eIgnore;
mInInternalActivate = true;
shell->HandleDOMEventWithTarget(this, &actEvent, &status);
mInInternalActivate = false;
// If activate is cancelled, we must do the same as when click is
// cancelled (revert the checkbox to its original value).
if (status == nsEventStatus_eConsumeNoDefault) {
aVisitor.mEventStatus = status;
}
}
}
}
// mForm is null if the event handler removed us from the document (bug 194582).
if ((aVisitor.mItemFlags & NS_IN_SUBMIT_CLICK) && mForm) {
// tell the form that we are about to exit a click handler
// so the form knows not to defer subsequent submissions
// the pending ones that were created during the handler
// will be flushed or forgoten.
mForm->OnSubmitClickEnd();
}
if (nsEventStatus_eIgnore == aVisitor.mEventStatus) {
switch (aVisitor.mEvent->mMessage) {
case eKeyPress:
case eKeyUp:
{
// For backwards compat, trigger buttons with space or enter
// (bug 25300)
WidgetKeyboardEvent* keyEvent = aVisitor.mEvent->AsKeyboardEvent();
if ((keyEvent->mKeyCode == NS_VK_RETURN &&
eKeyPress == aVisitor.mEvent->mMessage) ||
(keyEvent->mKeyCode == NS_VK_SPACE &&
eKeyUp == aVisitor.mEvent->mMessage)) {
DispatchSimulatedClick(this, aVisitor.mEvent->IsTrusted(),
aVisitor.mPresContext);
aVisitor.mEventStatus = nsEventStatus_eConsumeNoDefault;
}
}
break;
case eMouseDown:
{
WidgetMouseEvent* mouseEvent = aVisitor.mEvent->AsMouseEvent();
if (mouseEvent->button == WidgetMouseEvent::eLeftButton) {
if (mouseEvent->IsTrusted()) {
EventStateManager* esm =
aVisitor.mPresContext->EventStateManager();
EventStateManager::SetActiveManager(
static_cast<EventStateManager*>(esm), this);
}
nsIFocusManager* fm = nsFocusManager::GetFocusManager();
if (fm) {
uint32_t flags = nsIFocusManager::FLAG_BYMOUSE |
nsIFocusManager::FLAG_NOSCROLL;
// If this was a touch-generated event, pass that information:
if (mouseEvent->inputSource == nsIDOMMouseEvent::MOZ_SOURCE_TOUCH) {
flags |= nsIFocusManager::FLAG_BYTOUCH;
}
fm->SetFocus(this, flags);
}
mouseEvent->mFlags.mMultipleActionsPrevented = true;
} else if (mouseEvent->button == WidgetMouseEvent::eMiddleButton ||
mouseEvent->button == WidgetMouseEvent::eRightButton) {
// cancel all of these events for buttons
//XXXsmaug What to do with these events? Why these should be cancelled?
if (aVisitor.mDOMEvent) {
aVisitor.mDOMEvent->StopPropagation();
}
}
}
break;
// cancel all of these events for buttons
//XXXsmaug What to do with these events? Why these should be cancelled?
case eMouseUp:
case eMouseDoubleClick:
{
WidgetMouseEvent* mouseEvent = aVisitor.mEvent->AsMouseEvent();
if (aVisitor.mDOMEvent &&
(mouseEvent->button == WidgetMouseEvent::eMiddleButton ||
mouseEvent->button == WidgetMouseEvent::eRightButton)) {
aVisitor.mDOMEvent->StopPropagation();
}
}
break;
case eMouseOver:
{
aVisitor.mPresContext->EventStateManager()->
SetContentState(this, NS_EVENT_STATE_HOVER);
aVisitor.mEventStatus = nsEventStatus_eConsumeNoDefault;
}
break;
// XXX this doesn't seem to do anything yet
case eMouseOut:
{
aVisitor.mPresContext->EventStateManager()->
SetContentState(nullptr, NS_EVENT_STATE_HOVER);
aVisitor.mEventStatus = nsEventStatus_eConsumeNoDefault;
}
break;
default:
break;
}
if (aVisitor.mItemFlags & NS_OUTER_ACTIVATE_EVENT) {
if (mForm && (mType == NS_FORM_BUTTON_SUBMIT ||
mType == NS_FORM_BUTTON_RESET)) {
InternalFormEvent event(true,
(mType == NS_FORM_BUTTON_RESET) ? eFormReset : eFormSubmit);
event.originator = this;
nsEventStatus status = nsEventStatus_eIgnore;
nsCOMPtr<nsIPresShell> presShell =
aVisitor.mPresContext->GetPresShell();
// If |nsIPresShell::Destroy| has been called due to
// handling the event, the pres context will return
// a null pres shell. See bug 125624.
//
// Using presShell to dispatch the event. It makes sure that
// event is not handled if the window is being destroyed.
if (presShell && (event.mMessage != eFormSubmit ||
mForm->HasAttr(kNameSpaceID_None, nsGkAtoms::novalidate) ||
// We know the element is a submit control, if this check is moved,
// make sure formnovalidate is used only if it's a submit control.
HasAttr(kNameSpaceID_None, nsGkAtoms::formnovalidate) ||
mForm->CheckValidFormSubmission())) {
// TODO: removing this code and have the submit event sent by the form
// see bug 592124.
// Hold a strong ref while dispatching
RefPtr<HTMLFormElement> form(mForm);
presShell->HandleDOMEventWithTarget(mForm, &event, &status);
aVisitor.mEventStatus = nsEventStatus_eConsumeNoDefault;
}
}
}
} else if ((aVisitor.mItemFlags & NS_IN_SUBMIT_CLICK) && mForm) {
// Tell the form to flush a possible pending submission.
// the reason is that the script returned false (the event was
// not ignored) so if there is a stored submission, it needs to
// be submitted immediatelly.
// Note, NS_IN_SUBMIT_CLICK is set only when we're in outer activate event.
mForm->FlushPendingSubmission();
} //if
return rv;
}