void RenderListBox::updateFromElement()
{
if (m_optionsChanged) {
const Vector<HTMLElement*>& listItems = static_cast<HTMLSelectElement*>(node())->listItems();
int size = numItems();
float width = 0;
TextStyle textStyle(0, 0, 0, false, false, false, false);
for (int i = 0; i < size; ++i) {
HTMLElement* element = listItems[i];
String text;
Font itemFont = style()->font();
if (element->hasTagName(optionTag))
text = static_cast<HTMLOptionElement*>(element)->optionText();
else if (element->hasTagName(optgroupTag)) {
text = static_cast<HTMLOptGroupElement*>(element)->groupLabelText();
FontDescription d = itemFont.fontDescription();
d.setBold(true);
itemFont = Font(d, itemFont.letterSpacing(), itemFont.wordSpacing());
itemFont.update();
}
if (!text.isEmpty()) {
float textWidth = itemFont.floatWidth(TextRun(text.impl()), textStyle);
width = max(width, textWidth);
}
}
m_optionsWidth = static_cast<int>(ceilf(width));
m_optionsChanged = false;
setNeedsLayoutAndMinMaxRecalc();
}
}
void RenderListBox::paintItemForeground(PaintInfo& paintInfo, int tx, int ty, int listIndex)
{
HTMLSelectElement* select = static_cast<HTMLSelectElement*>(node());
const Vector<HTMLElement*>& listItems = select->listItems();
HTMLElement* element = listItems[listIndex];
String itemText;
if (element->hasTagName(optionTag))
itemText = static_cast<HTMLOptionElement*>(element)->optionText();
else if (element->hasTagName(optgroupTag))
itemText = static_cast<HTMLOptGroupElement*>(element)->groupLabelText();
// Determine where the item text should be placed
IntRect r = itemBoundingBoxRect(tx, ty, listIndex);
r.move(optionsSpacingHorizontal, style()->font().ascent());
RenderStyle* itemStyle = element->renderStyle();
if (!itemStyle)
itemStyle = style();
Color textColor = element->renderStyle() ? element->renderStyle()->color() : style()->color();
if (element->hasTagName(optionTag) && static_cast<HTMLOptionElement*>(element)->selected()) {
if (document()->frame()->isActive() && document()->focusedNode() == node())
textColor = theme()->activeListBoxSelectionForegroundColor();
// Honor the foreground color for disabled items
else if (!element->disabled())
textColor = theme()->inactiveListBoxSelectionForegroundColor();
}
paintInfo.context->setFillColor(textColor);
Font itemFont = style()->font();
if (element->hasTagName(optgroupTag)) {
FontDescription d = itemFont.fontDescription();
d.setBold(true);
itemFont = Font(d, itemFont.letterSpacing(), itemFont.wordSpacing());
itemFont.update();
}
paintInfo.context->setFont(itemFont);
unsigned length = itemText.length();
const UChar* string = itemText.characters();
TextStyle textStyle(0, 0, 0, false, true);
RenderBlock::CharacterBuffer characterBuffer;
if (itemStyle->direction() == RTL && itemStyle->unicodeBidi() == Override)
textStyle.setRTL(true);
else if ((itemStyle->direction() == RTL || itemStyle->unicodeBidi() != Override) && !itemStyle->visuallyOrdered()) {
// If necessary, reorder characters by running the string through the bidi algorithm
characterBuffer.append(string, length);
RenderBlock::bidiReorderCharacters(document(), itemStyle, characterBuffer);
string = characterBuffer.data();
}
TextRun textRun(string, length);
// Draw the item text
if (itemStyle->visibility() != HIDDEN)
paintInfo.context->drawText(textRun, r.location(), textStyle);
}
