#include "config.h"
#include "RenderButton.h"
#include "Document.h"
#include "GraphicsContext.h"
#include "HTMLInputElement.h"
#include "HTMLNames.h"
#include "RenderTextFragment.h"
#include "RenderTheme.h"
#include "StyleInheritedData.h"
#include <wtf/IsoMallocInlines.h>
#if PLATFORM(IOS)
#include "RenderThemeIOS.h"
#endif
namespace WebCore {
using namespace HTMLNames;
WTF_MAKE_ISO_ALLOCATED_IMPL(RenderButton);
RenderButton::RenderButton(HTMLFormControlElement& element, RenderStyle&& style)
: RenderFlexibleBox(element, WTFMove(style))
{
}
RenderButton::~RenderButton() = default;
HTMLFormControlElement& RenderButton::formControlElement() const
{
return downcast<HTMLFormControlElement>(nodeForNonAnonymous());
}
bool RenderButton::canBeSelectionLeaf() const
{
return formControlElement().hasEditableStyle();
}
bool RenderButton::hasLineIfEmpty() const
{
return is<HTMLInputElement>(formControlElement());
}
void RenderButton::addChild(RenderPtr<RenderObject> newChild, RenderObject* beforeChild)
{
if (!m_inner) {
ASSERT(!firstChild());
auto newInner = createAnonymousBlock(style().display());
updateAnonymousChildStyle(*newInner, newInner->mutableStyle());
m_inner = makeWeakPtr(*newInner);
RenderFlexibleBox::addChild(WTFMove(newInner));
}
m_inner->addChild(WTFMove(newChild), beforeChild);
}
RenderPtr<RenderObject> RenderButton::takeChild(RenderObject& oldChild)
{
if (&oldChild == m_inner || !m_inner || oldChild.parent() == this) {
ASSERT(&oldChild == m_inner || !m_inner);
return RenderFlexibleBox::takeChild(oldChild);
}
return m_inner->takeChild(oldChild);
}
void RenderButton::updateAnonymousChildStyle(const RenderObject& child, RenderStyle& childStyle) const
{
ASSERT_UNUSED(child, !m_inner || &child == m_inner);
childStyle.setFlexGrow(1.0f);
childStyle.setMinWidth(Length(0, Fixed));
childStyle.setMarginTop(Length());
childStyle.setMarginBottom(Length());
childStyle.setFlexDirection(style().flexDirection());
childStyle.setJustifyContent(style().justifyContent());
childStyle.setFlexWrap(style().flexWrap());
childStyle.setAlignItems(style().alignItems());
childStyle.setAlignContent(style().alignContent());
}
void RenderButton::updateFromElement()
{
if (is<HTMLInputElement>(formControlElement())) {
HTMLInputElement& input = downcast<HTMLInputElement>(formControlElement());
String value = input.valueWithDefault();
setText(value);
}
}
void RenderButton::setText(const String& str)
{
if (!m_buttonText && str.isEmpty())
return;
if (!m_buttonText) {
auto newButtonText = createRenderer<RenderTextFragment>(document(), str);
m_buttonText = makeWeakPtr(*newButtonText);
addChild(WTFMove(newButtonText));
return;
}
if (!str.isEmpty()) {
m_buttonText->setText(str.impl());
return;
}
m_buttonText->removeFromParentAndDestroy();
}
String RenderButton::text() const
{
if (m_buttonText)
return m_buttonText->text();
return { };
}
bool RenderButton::canHaveGeneratedChildren() const
{
return !is<HTMLInputElement>(formControlElement());
}
LayoutRect RenderButton::controlClipRect(const LayoutPoint& additionalOffset) const
{
return LayoutRect(additionalOffset.x() + borderLeft(), additionalOffset.y() + borderTop(), width() - borderLeft() - borderRight(), height() - borderTop() - borderBottom());
}
#if PLATFORM(IOS)
void RenderButton::layout()
{
RenderFlexibleBox::layout();
RenderThemeIOS::adjustRoundBorderRadius(mutableStyle(), *this);
}
#endif
}