CSSMediaRule.cpp 2.2 KB

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  1. /*
  2. * Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
  3. * Copyright (c) 2022, Andreas Kling <kling@serenityos.org>
  4. *
  5. * SPDX-License-Identifier: BSD-2-Clause
  6. */
  7. #include <LibJS/Runtime/Realm.h>
  8. #include <LibWeb/Bindings/CSSMediaRulePrototype.h>
  9. #include <LibWeb/Bindings/Intrinsics.h>
  10. #include <LibWeb/CSS/CSSMediaRule.h>
  11. namespace Web::CSS {
  12. CSSMediaRule* CSSMediaRule::create(JS::Realm& realm, MediaList& media_queries, CSSRuleList& rules)
  13. {
  14. return realm.heap().allocate<CSSMediaRule>(realm, realm, media_queries, rules);
  15. }
  16. CSSMediaRule::CSSMediaRule(JS::Realm& realm, MediaList& media, CSSRuleList& rules)
  17. : CSSConditionRule(realm, rules)
  18. , m_media(media)
  19. {
  20. set_prototype(&Bindings::ensure_web_prototype<Bindings::CSSMediaRulePrototype>(realm, "CSSMediaRule"));
  21. }
  22. void CSSMediaRule::visit_edges(Cell::Visitor& visitor)
  23. {
  24. Base::visit_edges(visitor);
  25. visitor.visit(&m_media);
  26. }
  27. DeprecatedString CSSMediaRule::condition_text() const
  28. {
  29. return m_media.media_text();
  30. }
  31. void CSSMediaRule::set_condition_text(DeprecatedString text)
  32. {
  33. m_media.set_media_text(text);
  34. }
  35. // https://www.w3.org/TR/cssom-1/#serialize-a-css-rule
  36. DeprecatedString CSSMediaRule::serialized() const
  37. {
  38. // The result of concatenating the following:
  39. StringBuilder builder;
  40. // 1. The string "@media", followed by a single SPACE (U+0020).
  41. builder.append("@media "sv);
  42. // 2. The result of performing serialize a media query list on rule’s media query list.
  43. builder.append(condition_text());
  44. // 3. A single SPACE (U+0020), followed by the string "{", i.e., LEFT CURLY BRACKET (U+007B), followed by a newline.
  45. builder.append(" {\n"sv);
  46. // 4. The result of performing serialize a CSS rule on each rule in the rule’s cssRules list, separated by a newline and indented by two spaces.
  47. for (size_t i = 0; i < css_rules().length(); i++) {
  48. auto rule = css_rules().item(i);
  49. if (i != 0)
  50. builder.append("\n"sv);
  51. builder.append(" "sv);
  52. builder.append(rule->css_text());
  53. }
  54. // 5. A newline, followed by the string "}", i.e., RIGHT CURLY BRACKET (U+007D)
  55. builder.append("\n}"sv);
  56. return builder.to_deprecated_string();
  57. }
  58. }