Element.h 5.0 KB

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  1. /*
  2. * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
  3. * All rights reserved.
  4. *
  5. * Redistribution and use in source and binary forms, with or without
  6. * modification, are permitted provided that the following conditions are met:
  7. *
  8. * 1. Redistributions of source code must retain the above copyright notice, this
  9. * list of conditions and the following disclaimer.
  10. *
  11. * 2. Redistributions in binary form must reproduce the above copyright notice,
  12. * this list of conditions and the following disclaimer in the documentation
  13. * and/or other materials provided with the distribution.
  14. *
  15. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  16. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  18. * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  19. * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  20. * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  21. * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  22. * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  23. * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  24. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25. */
  26. #pragma once
  27. #include <AK/FlyString.h>
  28. #include <AK/String.h>
  29. #include <LibWeb/DOM/Attribute.h>
  30. #include <LibWeb/DOM/NonDocumentTypeChildNode.h>
  31. #include <LibWeb/DOM/ParentNode.h>
  32. #include <LibWeb/HTML/AttributeNames.h>
  33. #include <LibWeb/HTML/TagNames.h>
  34. #include <LibWeb/Layout/Node.h>
  35. #include <LibWeb/QualifiedName.h>
  36. namespace Web::DOM {
  37. class Element
  38. : public ParentNode
  39. , public NonDocumentTypeChildNode<Element> {
  40. public:
  41. using WrapperType = Bindings::ElementWrapper;
  42. Element(Document&, QualifiedName);
  43. virtual ~Element() override;
  44. virtual FlyString node_name() const final { return m_qualified_name.local_name(); }
  45. const FlyString& local_name() const { return m_qualified_name.local_name(); }
  46. // NOTE: This is for the JS bindings
  47. const FlyString& tag_name() const { return local_name(); }
  48. const FlyString& namespace_() const { return m_qualified_name.namespace_(); }
  49. // NOTE: This is for the JS bindings
  50. const FlyString& namespace_uri() const { return namespace_(); }
  51. bool has_attribute(const FlyString& name) const { return !attribute(name).is_null(); }
  52. bool has_attributes() const { return !m_attributes.is_empty(); }
  53. String attribute(const FlyString& name) const;
  54. String get_attribute(const FlyString& name) const { return attribute(name); }
  55. void set_attribute(const FlyString& name, const String& value);
  56. void remove_attribute(const FlyString& name);
  57. template<typename Callback>
  58. void for_each_attribute(Callback callback) const
  59. {
  60. for (auto& attribute : m_attributes)
  61. callback(attribute.name(), attribute.value());
  62. }
  63. bool has_class(const FlyString&, CaseSensitivity = CaseSensitivity::CaseSensitive) const;
  64. const Vector<FlyString>& class_names() const { return m_classes; }
  65. virtual void apply_presentational_hints(CSS::StyleProperties&) const { }
  66. virtual void parse_attribute(const FlyString& name, const String& value);
  67. void recompute_style();
  68. Layout::NodeWithStyle* layout_node() { return static_cast<Layout::NodeWithStyle*>(Node::layout_node()); }
  69. const Layout::NodeWithStyle* layout_node() const { return static_cast<const Layout::NodeWithStyle*>(Node::layout_node()); }
  70. String name() const { return attribute(HTML::AttributeNames::name); }
  71. const CSS::StyleProperties* specified_css_values() const { return m_specified_css_values.ptr(); }
  72. NonnullRefPtr<CSS::StyleProperties> computed_style();
  73. const CSS::StyleDeclaration* inline_style() const { return m_inline_style; }
  74. // FIXME: innerHTML also appears on shadow roots. https://w3c.github.io/DOM-Parsing/#dom-innerhtml
  75. String inner_html() const;
  76. void set_inner_html(StringView);
  77. bool is_focused() const;
  78. virtual bool is_focusable() const { return false; }
  79. NonnullRefPtrVector<Element> get_elements_by_tag_name(const FlyString&) const;
  80. NonnullRefPtrVector<Element> get_elements_by_class_name(const FlyString&) const;
  81. ShadowRoot* shadow_root() { return m_shadow_root; }
  82. const ShadowRoot* shadow_root() const { return m_shadow_root; }
  83. void set_shadow_root(RefPtr<ShadowRoot>);
  84. protected:
  85. RefPtr<Layout::Node> create_layout_node() override;
  86. private:
  87. Attribute* find_attribute(const FlyString& name);
  88. const Attribute* find_attribute(const FlyString& name) const;
  89. QualifiedName m_qualified_name;
  90. Vector<Attribute> m_attributes;
  91. RefPtr<CSS::StyleDeclaration> m_inline_style;
  92. RefPtr<CSS::StyleProperties> m_specified_css_values;
  93. Vector<FlyString> m_classes;
  94. RefPtr<ShadowRoot> m_shadow_root;
  95. };
  96. template<>
  97. inline bool Node::fast_is<Element>() const { return is_element(); }
  98. }