bool
nsNativeThemeQt::ThemeSupportsWidget(nsPresContext* aPresContext,
nsIFrame* aFrame,
PRUint8 aWidgetType)
{
switch (aWidgetType) {
case NS_THEME_SCROLLBAR:
case NS_THEME_SCROLLBAR_BUTTON_UP:
case NS_THEME_SCROLLBAR_BUTTON_DOWN:
case NS_THEME_SCROLLBAR_BUTTON_LEFT:
case NS_THEME_SCROLLBAR_BUTTON_RIGHT:
case NS_THEME_SCROLLBAR_THUMB_HORIZONTAL:
case NS_THEME_SCROLLBAR_THUMB_VERTICAL:
//case NS_THEME_SCROLLBAR_GRIPPER_HORIZONTAL:
//case NS_THEME_SCROLLBAR_GRIPPER_VERTICAL:
case NS_THEME_SCROLLBAR_TRACK_HORIZONTAL:
case NS_THEME_SCROLLBAR_TRACK_VERTICAL:
case NS_THEME_RADIO:
case NS_THEME_CHECKBOX:
case NS_THEME_BUTTON_BEVEL:
case NS_THEME_BUTTON:
case NS_THEME_DROPDOWN:
case NS_THEME_DROPDOWN_BUTTON:
case NS_THEME_DROPDOWN_TEXT:
case NS_THEME_DROPDOWN_TEXTFIELD:
case NS_THEME_TEXTFIELD:
case NS_THEME_TEXTFIELD_MULTILINE:
case NS_THEME_LISTBOX:
case NS_THEME_MENUPOPUP:
return !IsWidgetStyled(aPresContext, aFrame, aWidgetType);
default:
break;
}
return PR_FALSE;
}
PRBool
nsNativeTheme::IsWidgetStyled(nsPresContext* aPresContext, nsIFrame* aFrame,
PRUint8 aWidgetType)
{
// Check for specific widgets to see if HTML has overridden the style.
if (!aFrame)
return PR_FALSE;
// Resizers have some special handling, dependent on whether in a scrollable
// container or not. If so, use the scrollable container's to determine
// whether the style is overriden instead of the resizer. This allows a
// non-native transparent resizer to be used instead. Otherwise, we just
// fall through and return false.
if (aWidgetType == NS_THEME_RESIZER) {
nsIFrame* parentFrame = aFrame->GetParent();
if (parentFrame && parentFrame->GetType() == nsWidgetAtoms::scrollFrame) {
// if the parent is a scrollframe, the resizer should be native themed
// only if the scrollable area doesn't override the widget style.
parentFrame = parentFrame->GetParent();
if (parentFrame) {
return IsWidgetStyled(aPresContext, parentFrame,
parentFrame->GetStyleDisplay()->mAppearance);
}
}
}
/**
* Progress bar appearance should be the same for the bar and the container
* frame. nsProgressFrame owns the logic and will tell us what we should do.
*/
if (aWidgetType == NS_THEME_PROGRESSBAR_CHUNK ||
aWidgetType == NS_THEME_PROGRESSBAR) {
nsProgressFrame* progressFrame = do_QueryFrame(aWidgetType == NS_THEME_PROGRESSBAR_CHUNK
? aFrame->GetParent() : aFrame);
if (progressFrame) {
return !progressFrame->ShouldUseNativeStyle();
}
}
return (aWidgetType == NS_THEME_BUTTON ||
aWidgetType == NS_THEME_TEXTFIELD ||
aWidgetType == NS_THEME_TEXTFIELD_MULTILINE ||
aWidgetType == NS_THEME_LISTBOX ||
aWidgetType == NS_THEME_DROPDOWN) &&
aFrame->GetContent()->IsHTML() &&
aPresContext->HasAuthorSpecifiedRules(aFrame,
NS_AUTHOR_SPECIFIED_BORDER |
NS_AUTHOR_SPECIFIED_BACKGROUND);
}
