PRBool
nsTextBoxFrame::UpdateAccesskey(nsWeakFrame& aWeakThis)
{
nsAutoString accesskey;
nsCOMPtr<nsIDOMXULLabelElement> labelElement = do_QueryInterface(mContent);
NS_ENSURE_TRUE(aWeakThis.IsAlive(), PR_FALSE);
if (labelElement) {
// Accesskey may be stored on control.
// Because this method is called by the reflow callback, current context
// may not be the right one. Pushing the context of mContent so that
// if nsIDOMXULLabelElement is implemented in XBL, we don't get a
// security exception.
nsCxPusher cx;
if (cx.Push(mContent)) {
labelElement->GetAccessKey(accesskey);
NS_ENSURE_TRUE(aWeakThis.IsAlive(), PR_FALSE);
}
}
else {
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::accesskey, accesskey);
}
if (!accesskey.Equals(mAccessKey)) {
// Need to get clean mTitle.
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::value, mTitle);
mAccessKey = accesskey;
UpdateAccessTitle();
PresContext()->PresShell()->
FrameNeedsReflow(this, nsIPresShell::eStyleChange,
NS_FRAME_IS_DIRTY);
return PR_TRUE;
}
return PR_FALSE;
}
void
nsTextBoxFrame::UpdateAttributes(nsIAtom* aAttribute,
PRBool& aResize,
PRBool& aRedraw)
{
PRBool doUpdateTitle = PR_FALSE;
aResize = PR_FALSE;
aRedraw = PR_FALSE;
if (aAttribute == nsnull || aAttribute == nsGkAtoms::crop) {
static nsIContent::AttrValuesArray strings[] =
{ &nsGkAtoms::left, &nsGkAtoms::start, &nsGkAtoms::center,
&nsGkAtoms::right, &nsGkAtoms::end, nsnull
};
CroppingStyle cropType;
switch (mContent->FindAttrValueIn(kNameSpaceID_None, nsGkAtoms::crop,
strings, eCaseMatters)) {
case 0:
case 1:
cropType = CropLeft;
break;
case 2:
cropType = CropCenter;
break;
case 3:
case 4:
cropType = CropRight;
break;
default:
cropType = CropNone;
break;
}
if (cropType != mCropType) {
aResize = PR_TRUE;
mCropType = cropType;
}
}
if (aAttribute == nsnull || aAttribute == nsGkAtoms::value) {
mContent->GetAttr(kNameSpaceID_None, nsGkAtoms::value, mTitle);
doUpdateTitle = PR_TRUE;
}
if (aAttribute == nsnull || aAttribute == nsGkAtoms::accesskey) {
mNeedsReflowCallback = PR_TRUE;
// Ensure that layout is refreshed and reflow callback called.
aResize = PR_TRUE;
}
if (doUpdateTitle) {
UpdateAccessTitle();
aResize = PR_TRUE;
}
}
