void RenderMenuList::setTextFromOption(int optionIndex)
{
SelectElement* select = toSelectElement(static_cast<Element*>(node()));
const Vector<Element*>& listItems = select->listItems();
int size = listItems.size();
int i = select->optionToListIndex(optionIndex);
String text = "";
if (i >= 0 && i < size) {
Element* element = listItems[i];
if (OptionElement* optionElement = toOptionElement(element)) {
text = optionElement->textIndentedToRespectGroupLabel();
m_optionStyle = element->renderStyle();
}
}
setText(text.stripWhiteSpace());
}
PopupMenuStyle RenderMenuList::itemStyle(unsigned listIndex) const
{
SelectElement* select = toSelectElement(static_cast<Element*>(node()));
const Vector<Element*>& listItems = select->listItems();
if (listIndex >= listItems.size()) {
// If we are making an out of bounds access, then we want to use the style
// of a different option element (index 0). However, if there isn't an option element
// before at index 0, we fall back to the menu's style.
if (!listIndex)
return menuStyle();
// Try to retrieve the style of an option element we know exists (index 0).
listIndex = 0;
}
Element* element = listItems[listIndex];
RenderStyle* style = element->renderStyle() ? element->renderStyle() : element->computedStyle();
return style ? PopupMenuStyle(style->visitedDependentColor(CSSPropertyColor), itemBackgroundColor(listIndex), style->font(), style->visibility() == VISIBLE, style->display() == NONE, style->textIndent(), style->direction(), style->unicodeBidi() == Override) : menuStyle();
}
bool RenderMenuList::itemIsEnabled(unsigned listIndex) const
{
SelectElement* select = toSelectElement(static_cast<Element*>(node()));
const Vector<Element*>& listItems = select->listItems();
if (listIndex >= listItems.size())
return false;
Element* element = listItems[listIndex];
if (!isOptionElement(element))
return false;
bool groupEnabled = true;
if (Element* parentElement = element->parentElement()) {
if (isOptionGroupElement(parentElement))
groupEnabled = parentElement->isEnabledFormControl();
}
if (!groupEnabled)
return false;
return element->isEnabledFormControl();
}
Color RenderMenuList::itemBackgroundColor(unsigned listIndex) const
{
SelectElement* select = toSelectElement(static_cast<Element*>(node()));
const Vector<Element*>& listItems = select->listItems();
if (listIndex >= listItems.size())
return style()->visitedDependentColor(CSSPropertyBackgroundColor);
Element* element = listItems[listIndex];
Color backgroundColor;
if (element->renderStyle())
backgroundColor = element->renderStyle()->visitedDependentColor(CSSPropertyBackgroundColor);
// If the item has an opaque background color, return that.
if (!backgroundColor.hasAlpha())
return backgroundColor;
// Otherwise, the item's background is overlayed on top of the menu background.
backgroundColor = style()->visitedDependentColor(CSSPropertyBackgroundColor).blend(backgroundColor);
if (!backgroundColor.hasAlpha())
return backgroundColor;
// If the menu background is not opaque, then add an opaque white background behind.
return Color(Color::white).blend(backgroundColor);
}
void RenderListBox::paintItemBackground(PaintInfo& paintInfo, int tx, int ty, int listIndex)
{
SelectElement* select = toSelectElement(static_cast<Element*>(node()));
const Vector<Element*>& listItems = select->listItems();
Element* element = listItems[listIndex];
OptionElement* optionElement = toOptionElement(element);
Color backColor;
if (optionElement && optionElement->selected()) {
if (document()->frame()->selection()->isFocusedAndActive() && document()->focusedNode() == node())
backColor = theme()->activeListBoxSelectionBackgroundColor();
else
backColor = theme()->inactiveListBoxSelectionBackgroundColor();
} else
backColor = element->renderStyle() ? element->renderStyle()->backgroundColor() : style()->backgroundColor();
// Draw the background for this list box item
if (!element->renderStyle() || element->renderStyle()->visibility() != HIDDEN) {
IntRect itemRect = itemBoundingBoxRect(tx, ty, listIndex);
itemRect.intersect(controlClipRect(tx, ty));
paintInfo.context->fillRect(itemRect, backColor);
}
}
int RenderMenuList::listSize() const
{
SelectElement* select = toSelectElement(static_cast<Element*>(node()));
return select->listItems().size();
}
