//-----------------------------------------------------------------------------
NS_IMETHODIMP nsCaret::NotifySelectionChanged(nsIDOMDocument *, nsISelection *aDomSel, PRInt16 aReason)
{
if (aReason & nsISelectionListener::MOUSEUP_REASON)//this wont do
return NS_OK;
nsCOMPtr<nsISelection> domSel(do_QueryReferent(mDomSelectionWeak));
// The same caret is shared amongst the document and any text widgets it
// may contain. This means that the caret could get notifications from
// multiple selections.
//
// If this notification is for a selection that is not the one the
// the caret is currently interested in (mDomSelectionWeak), then there
// is nothing to do!
if (domSel != aDomSel)
return NS_OK;
if (mVisible)
{
// Stop the caret from blinking in its previous location.
StopBlinking();
// Start the caret blinking in the new location.
StartBlinking();
}
return NS_OK;
}
//-----------------------------------------------------------------------------
nsresult nsCaret::Init(nsIPresShell *inPresShell)
{
NS_ENSURE_ARG(inPresShell);
mPresShell = do_GetWeakReference(inPresShell); // the presshell owns us, so no addref
NS_ASSERTION(mPresShell, "Hey, pres shell should support weak refs");
// get nsILookAndFeel from the pres context, which has one cached.
nsILookAndFeel *lookAndFeel = nsnull;
nsPresContext *presContext = inPresShell->GetPresContext();
// XXX we should just do this nsILookAndFeel consultation every time
// we need these values.
mCaretWidthCSSPx = 1;
mCaretAspectRatio = 0;
if (presContext && (lookAndFeel = presContext->LookAndFeel())) {
PRInt32 tempInt;
float tempFloat;
if (NS_SUCCEEDED(lookAndFeel->GetMetric(nsILookAndFeel::eMetric_CaretWidth, tempInt)))
mCaretWidthCSSPx = (nscoord)tempInt;
if (NS_SUCCEEDED(lookAndFeel->GetMetric(nsILookAndFeel::eMetricFloat_CaretAspectRatio, tempFloat)))
mCaretAspectRatio = tempFloat;
if (NS_SUCCEEDED(lookAndFeel->GetMetric(nsILookAndFeel::eMetric_CaretBlinkTime, tempInt)))
mBlinkRate = (PRUint32)tempInt;
if (NS_SUCCEEDED(lookAndFeel->GetMetric(nsILookAndFeel::eMetric_ShowCaretDuringSelection, tempInt)))
mShowDuringSelection = tempInt ? PR_TRUE : PR_FALSE;
}
// get the selection from the pres shell, and set ourselves up as a selection
// listener
nsCOMPtr<nsISelectionController> selCon = do_QueryReferent(mPresShell);
if (!selCon)
return NS_ERROR_FAILURE;
nsCOMPtr<nsISelection> domSelection;
nsresult rv = selCon->GetSelection(nsISelectionController::SELECTION_NORMAL,
getter_AddRefs(domSelection));
if (NS_FAILED(rv))
return rv;
if (!domSelection)
return NS_ERROR_FAILURE;
nsCOMPtr<nsISelectionPrivate> privateSelection = do_QueryInterface(domSelection);
if (privateSelection)
privateSelection->AddSelectionListener(this);
mDomSelectionWeak = do_GetWeakReference(domSelection);
// set up the blink timer
if (mVisible)
{
StartBlinking();
}
#ifdef IBMBIDI
mBidiUI = nsContentUtils::GetBoolPref("bidi.browser.ui");
#endif
return NS_OK;
}
//-----------------------------------------------------------------------------
void nsCaret::SetCaretVisible(PRBool inMakeVisible)
{
mVisible = inMakeVisible;
if (mVisible) {
StartBlinking();
SetIgnoreUserModify(PR_TRUE);
} else {
StopBlinking();
SetIgnoreUserModify(PR_FALSE);
}
}
//-----------------------------------------------------------------------------
nsresult nsCaret::SetCaretDOMSelection(nsISelection *aDOMSel)
{
NS_ENSURE_ARG_POINTER(aDOMSel);
mDomSelectionWeak = do_GetWeakReference(aDOMSel); // weak reference to pres shell
if (mVisible)
{
// Stop the caret from blinking in its previous location.
StopBlinking();
// Start the caret blinking in the new location.
StartBlinking();
}
return NS_OK;
}
void
nsMenuFrame::Execute(nsGUIEvent *aEvent)
{
// flip "checked" state if we're a checkbox menu, or an un-checked radio menu
PRBool needToFlipChecked = PR_FALSE;
if (mType == eMenuType_Checkbox || (mType == eMenuType_Radio && !mChecked)) {
needToFlipChecked = !mContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::autocheck,
nsGkAtoms::_false, eCaseMatters);
}
nsCOMPtr<nsISound> sound(do_CreateInstance("@mozilla.org/sound;1"));
if (sound)
sound->PlayEventSound(nsISound::EVENT_MENU_EXECUTE);
StartBlinking(aEvent, needToFlipChecked);
}