ValidationMessage.cpp [plain text]
#include "config.h"
#include "ValidationMessage.h"
#include "CSSPropertyNames.h"
#include "CSSValueKeywords.h"
#include "ExceptionCodePlaceholder.h"
#include "FormAssociatedElement.h"
#include "HTMLBRElement.h"
#include "HTMLDivElement.h"
#include "HTMLNames.h"
#include "Page.h"
#include "RenderBlock.h"
#include "RenderObject.h"
#include "Settings.h"
#include "ShadowRoot.h"
#include "ShadowTree.h"
#include "StyleResolver.h"
#include "Text.h"
#include <wtf/PassOwnPtr.h>
namespace WebCore {
using namespace HTMLNames;
ALWAYS_INLINE ValidationMessage::ValidationMessage(FormAssociatedElement* element)
: m_element(element)
{
}
ValidationMessage::~ValidationMessage()
{
deleteBubbleTree();
}
PassOwnPtr<ValidationMessage> ValidationMessage::create(FormAssociatedElement* element)
{
return adoptPtr(new ValidationMessage(element));
}
void ValidationMessage::setMessage(const String& message)
{
ASSERT(!message.isEmpty());
m_message = message;
if (!m_bubble)
m_timer = adoptPtr(new Timer<ValidationMessage>(this, &ValidationMessage::buildBubbleTree));
else
m_timer = adoptPtr(new Timer<ValidationMessage>(this, &ValidationMessage::setMessageDOMAndStartTimer));
m_timer->startOneShot(0);
}
void ValidationMessage::setMessageDOMAndStartTimer(Timer<ValidationMessage>*)
{
ASSERT(m_messageHeading);
ASSERT(m_messageBody);
m_messageHeading->removeAllChildren();
m_messageBody->removeAllChildren();
Vector<String> lines;
m_message.split('\n', lines);
Document* doc = m_messageHeading->document();
for (unsigned i = 0; i < lines.size(); ++i) {
if (i) {
m_messageBody->appendChild(Text::create(doc, lines[i]), ASSERT_NO_EXCEPTION);
if (i < lines.size() - 1)
m_messageBody->appendChild(HTMLBRElement::create(doc), ASSERT_NO_EXCEPTION);
} else
m_messageHeading->setInnerText(lines[i], ASSERT_NO_EXCEPTION);
}
int magnification = doc->page() ? doc->page()->settings()->validationMessageTimerMaginification() : -1;
if (magnification <= 0)
m_timer.clear();
else {
m_timer = adoptPtr(new Timer<ValidationMessage>(this, &ValidationMessage::deleteBubbleTree));
m_timer->startOneShot(max(5.0, static_cast<double>(m_message.length()) * magnification / 1000));
}
}
static void adjustBubblePosition(const LayoutRect& hostRect, HTMLElement* bubble)
{
ASSERT(bubble);
if (hostRect.isEmpty())
return;
double hostX = hostRect.x();
double hostY = hostRect.y();
if (RenderBox* container = bubble->renderer()->containingBlock()) {
FloatPoint containerLocation = container->localToAbsolute();
hostX -= containerLocation.x() + container->borderLeft();
hostY -= containerLocation.y() + container->borderTop();
}
bubble->setInlineStyleProperty(CSSPropertyTop, hostY + hostRect.height(), CSSPrimitiveValue::CSS_PX);
const int bubbleArrowTopOffset = 32;
double bubbleX = hostX;
if (hostRect.width() / 2 < bubbleArrowTopOffset)
bubbleX = max(hostX + hostRect.width() / 2 - bubbleArrowTopOffset, 0.0);
bubble->setInlineStyleProperty(CSSPropertyLeft, bubbleX, CSSPrimitiveValue::CSS_PX);
}
void ValidationMessage::buildBubbleTree(Timer<ValidationMessage>*)
{
HTMLElement* host = toHTMLElement(m_element);
Document* doc = host->document();
m_bubble = HTMLDivElement::create(doc);
m_bubble->setShadowPseudoId("-webkit-validation-bubble");
m_bubble->setInlineStyleProperty(CSSPropertyPosition, CSSValueAbsolute);
ExceptionCode ec = 0;
host->ensureShadowRoot()->appendChild(m_bubble.get(), ec);
ASSERT(!ec);
adjustBubblePosition(host->getRect(), m_bubble.get());
RefPtr<HTMLDivElement> clipper = HTMLDivElement::create(doc);
clipper->setShadowPseudoId("-webkit-validation-bubble-arrow-clipper");
RefPtr<HTMLDivElement> bubbleArrow = HTMLDivElement::create(doc);
bubbleArrow->setShadowPseudoId("-webkit-validation-bubble-arrow");
clipper->appendChild(bubbleArrow.release(), ec);
ASSERT(!ec);
m_bubble->appendChild(clipper.release(), ec);
ASSERT(!ec);
RefPtr<HTMLElement> message = HTMLDivElement::create(doc);
message->setShadowPseudoId("-webkit-validation-bubble-message");
RefPtr<HTMLElement> icon = HTMLDivElement::create(doc);
icon->setShadowPseudoId("-webkit-validation-bubble-icon");
message->appendChild(icon.release(), ASSERT_NO_EXCEPTION);
RefPtr<HTMLElement> textBlock = HTMLDivElement::create(doc);
textBlock->setShadowPseudoId("-webkit-validation-bubble-text-block");
m_messageHeading = HTMLDivElement::create(doc);
m_messageHeading->setShadowPseudoId("-webkit-validation-bubble-heading");
textBlock->appendChild(m_messageHeading, ASSERT_NO_EXCEPTION);
m_messageBody = HTMLDivElement::create(doc);
m_messageBody->setShadowPseudoId("-webkit-validation-bubble-body");
textBlock->appendChild(m_messageBody, ASSERT_NO_EXCEPTION);
message->appendChild(textBlock.release(), ASSERT_NO_EXCEPTION);
m_bubble->appendChild(message.release(), ASSERT_NO_EXCEPTION);
setMessageDOMAndStartTimer();
}
void ValidationMessage::requestToHideMessage()
{
m_timer = adoptPtr(new Timer<ValidationMessage>(this, &ValidationMessage::deleteBubbleTree));
m_timer->startOneShot(0);
}
bool ValidationMessage::shadowTreeContains(Node* node) const
{
if (!m_bubble)
return false;
return m_bubble->treeScope() == node->treeScope();
}
void ValidationMessage::deleteBubbleTree(Timer<ValidationMessage>*)
{
if (m_bubble) {
m_messageHeading = 0;
m_messageBody = 0;
HTMLElement* host = toHTMLElement(m_element);
ExceptionCode ec;
host->shadowTree()->oldestShadowRoot()->removeChild(m_bubble.get(), ec);
m_bubble = 0;
}
m_message = String();
}
}