third_party/blink/public/web/web_element.h

/*
 * Copyright (C) 2009 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,
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef THIRD_PARTY_BLINK_PUBLIC_WEB_WEB_ELEMENT_H_
#define THIRD_PARTY_BLINK_PUBLIC_WEB_WEB_ELEMENT_H_

#include "third_party/blink/public/web/web_node.h"
#include "third_party/skia/include/core/SkBitmap.h"

namespace blink {

class Element;
struct WebRect;

// Provides access to some properties of a DOM element node.
class BLINK_EXPORT WebElement : public WebNode {
 public:
  WebElement() : WebNode() {}
  WebElement(const WebElement& e) = default;

  WebElement& operator=(const WebElement& e) {
    WebNode::Assign(e);
    return *this;
  }
  void Assign(const WebElement& e) { WebNode::Assign(e); }

  bool IsFormControlElement() const;
  // If the element is editable, for example by being contenteditable or being
  // an <input> that isn't readonly or disabled.
  bool IsEditable() const;
  // Returns the qualified name, which may contain a prefix and a colon.
  WebString TagName() const;
  // Check if this element has the specified local tag name, and the HTML
  // namespace. Tag name matching is case-insensitive.
  bool HasHTMLTagName(const WebString&) const;
  bool HasAttribute(const WebString&) const;
  WebString GetAttribute(const WebString&) const;
  void SetAttribute(const WebString& name, const WebString& value);
  WebString TextContent() const;
  WebString InnerHTML() const;
  WebString AttributeLocalName(unsigned index) const;
  WebString AttributeValue(unsigned index) const;
  unsigned AttributeCount() const;

  // Returns true if this is an autonomous custom element, regardless of
  // Custom Elements V0 or V1.
  bool IsAutonomousCustomElement() const;

  // Returns an author ShadowRoot attached to this element, regardless
  // of V0, V1 open, or V1 closed.  This returns null WebNode if this
  // element has no ShadowRoot or has a UA ShadowRoot.
  WebNode ShadowRoot() const;

  // Returns the bounds of the element in Visual Viewport. The bounds
  // have been adjusted to include any transformations, including page scale.
  // This function will update the layout if required.
  WebRect BoundsInViewport() const;

  // Returns the image contents of this element or a null SkBitmap
  // if there isn't any.
  SkBitmap ImageContents();
  void RequestFullscreen();

#if INSIDE_BLINK
  WebElement(Element*);
  WebElement& operator=(Element*);
  operator Element*() const;
#endif
};

DECLARE_WEB_NODE_TYPE_CASTS(WebElement);

}  // namespace blink

#endif