Source/WebCore/html/ValidationMessage.h

/*
 * 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
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#pragma once

#include "Timer.h"
#include <memory>
#include <wtf/Noncopyable.h>
#include <wtf/RefPtr.h>
#include <wtf/WeakPtr.h>
#include <wtf/text/WTFString.h>

namespace WebCore {

class HTMLElement;
class HTMLFormControlElement;
class Node;
class ValidationMessageClient;

// FIXME: We should remove the code for !validationMessageClient() when all
// ports supporting interactive validation switch to ValidationMessageClient.
class ValidationMessage : public CanMakeWeakPtr<ValidationMessage> {
    WTF_MAKE_NONCOPYABLE(ValidationMessage); WTF_MAKE_FAST_ALLOCATED;
public:
    explicit ValidationMessage(HTMLFormControlElement*);
    ~ValidationMessage();

    void updateValidationMessage(const String&);
    void requestToHideMessage();
    bool isVisible() const;
    bool shadowTreeContains(const Node&) const;

private:
    ValidationMessageClient* validationMessageClient() const;
    void setMessage(const String&);
    void setMessageDOMAndStartTimer();
    void adjustBubblePosition();
    void buildBubbleTree();
    void deleteBubbleTree();

    HTMLFormControlElement* m_element;
    String m_message;
    std::unique_ptr<Timer> m_timer;
    RefPtr<HTMLElement> m_bubble;
    RefPtr<HTMLElement> m_messageHeading;
    RefPtr<HTMLElement> m_messageBody;
};

} // namespace WebCore