#include "config.h"
#include "RenderButton.h"
#include "Document.h"
#include "GraphicsContext.h"
#include "HTMLInputElement.h"
#include "HTMLNames.h"
#include "RenderTextFragment.h"
#include "RenderTheme.h"
namespace WebCore {
using namespace HTMLNames;
RenderButton::RenderButton(Node* node)
: RenderFlexibleBox(node)
, m_buttonText(0)
, m_inner(0)
{
}
void RenderButton::addChild(RenderObject* newChild, RenderObject* beforeChild)
{
if (!m_inner) {
ASSERT(!firstChild());
m_inner = createAnonymousBlock();
m_inner->style()->setBoxFlex(1.0f);
RenderFlexibleBox::addChild(m_inner);
}
m_inner->addChild(newChild, beforeChild);
}
void RenderButton::removeChild(RenderObject* oldChild)
{
if (oldChild == m_inner || !m_inner) {
RenderFlexibleBox::removeChild(oldChild);
m_inner = 0;
} else
m_inner->removeChild(oldChild);
}
void RenderButton::setStyle(RenderStyle* style)
{
RenderBlock::setStyle(style);
if (m_buttonText)
m_buttonText->setStyle(style);
if (m_inner) m_inner->style()->setBoxFlex(1.0f);
setReplaced(isInline());
}
void RenderButton::updateFromElement()
{
if (element()->hasTagName(inputTag)) {
HTMLInputElement* input = static_cast<HTMLInputElement*>(element());
String value = input->valueWithDefault();
setText(value);
}
}
bool RenderButton::canHaveChildren() const
{
return !element()->hasTagName(inputTag);
}
void RenderButton::setText(const String& str)
{
if (str.isEmpty()) {
if (m_buttonText) {
m_buttonText->destroy();
m_buttonText = 0;
}
} else {
if (m_buttonText)
m_buttonText->setText(str.impl());
else {
m_buttonText = new (renderArena()) RenderTextFragment(document(), str.impl());
m_buttonText->setStyle(style());
addChild(m_buttonText);
}
}
}
void RenderButton::updateBeforeAfterContent(RenderStyle::PseudoId type)
{
if (m_inner)
m_inner->updateBeforeAfterContentForContainer(type, this);
else
updateBeforeAfterContentForContainer(type, this);
}
IntRect RenderButton::controlClipRect(int tx, int ty) const
{
return IntRect(tx + borderLeft(), ty + borderTop(), m_width - borderLeft() - borderRight(), m_height - borderTop() - borderBottom());
}
void RenderButton::layout()
{
RenderFlexibleBox::layout();
if (style()->appearance() == NoAppearance || style()->backgroundLayers()->hasImage()) return;
IntSize radius(MIN(width(), height()) / 2.0, height() / 2.0);
style()->setBorderTopLeftRadius(radius);
style()->setBorderTopRightRadius(radius);
style()->setBorderBottomLeftRadius(radius);
style()->setBorderBottomRightRadius(radius);
}
}