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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "ValidationMessage.h"
#include "CSSPropertyNames.h"
#include "CSSStyleSelector.h"
#include "CSSValueKeywords.h"
#include "FormAssociatedElement.h"
#include "HTMLBRElement.h"
#include "HTMLNames.h"
#include "Page.h"
#include "RenderObject.h"
#include "Settings.h"
#include "ShadowRoot.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)
{
// Don't modify the DOM tree in this context.
// If so, an assertion in Node::isFocusable() fails.
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_bubbleMessage);
m_bubbleMessage->removeAllChildren();
Vector<String> lines;
m_message.split('\n', lines);
Document* doc = m_bubbleMessage->document();
ExceptionCode ec = 0;
for (unsigned i = 0; i < lines.size(); ++i) {
if (i) {
m_bubbleMessage->appendChild(HTMLBRElement::create(doc), ec);
m_bubbleMessage->appendChild(Text::create(doc, lines[i]), ec);
} else {
RefPtr<HTMLElement> bold = HTMLElement::create(bTag, doc);
bold->setInnerText(lines[i], ec);
m_bubbleMessage->appendChild(bold.release(), ec);
}
}
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));
}
}
class ElementWithPseudoId : public HTMLElement {
public:
static PassRefPtr<HTMLElement> create(Document* doc, const AtomicString& pseudoName)
{
return adoptRef(new ElementWithPseudoId(doc, pseudoName));
}
protected:
ElementWithPseudoId(Document* doc, const AtomicString& pseudoName)
: HTMLElement(divTag, doc)
, m_pseudoName(pseudoName) { };
virtual const AtomicString& shadowPseudoId() const { return m_pseudoName; }
private:
AtomicString m_pseudoName;
};
void ValidationMessage::buildBubbleTree(Timer<ValidationMessage>*)
{
HTMLElement* host = toHTMLElement(m_element);
Document* doc = host->document();
m_bubble = ElementWithPseudoId::create(doc, "-webkit-validation-bubble");
// Need to force position:absolute because RenderMenuList doesn't assume it
// contains non-absolute or non-fixed renderers as children.
m_bubble->getInlineStyleDecl()->setProperty(CSSPropertyPosition, CSSValueAbsolute);
ExceptionCode ec = 0;
host->ensureShadowRoot()->appendChild(m_bubble.get(), ec);
RefPtr<HTMLElement> clipper = ElementWithPseudoId::create(doc, "-webkit-validation-bubble-arrow-clipper");
clipper->appendChild(ElementWithPseudoId::create(doc, "-webkit-validation-bubble-arrow"), ec);
m_bubble->appendChild(clipper.release(), ec);
m_bubbleMessage = ElementWithPseudoId::create(doc, "-webkit-validation-bubble-message");
m_bubble->appendChild(m_bubbleMessage, ec);
setMessageDOMAndStartTimer();
// FIXME: Use transition to show the bubble.
// We don't need to adjust the bubble location. The default position is enough.
}
void ValidationMessage::requestToHideMessage()
{
// We must not modify the DOM tree in this context by the same reason as setMessage().
m_timer = adoptPtr(new Timer<ValidationMessage>(this, &ValidationMessage::deleteBubbleTree));
m_timer->startOneShot(0);
}
void ValidationMessage::deleteBubbleTree(Timer<ValidationMessage>*)
{
if (m_bubble) {
m_bubbleMessage = 0;
HTMLElement* host = toHTMLElement(m_element);
ExceptionCode ec;
host->shadowRoot()->removeChild(m_bubble.get(), ec);
m_bubble = 0;
}
m_message = String();
}
} // namespace WebCore
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