| <!DOCTYPE html> |
| <title>@scope - ShadowDOM</title> |
| <link rel="help" href="https://drafts.csswg.org/css-cascade-6/#scope-atrule"> |
| <link rel="help" href="https://github.com/w3c/csswg-drafts/issues/9025"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <div id=host_plain> |
| <template shadowrootmode=open> |
| <style> |
| @scope (:host) { |
| .a { |
| z-index: 1; |
| } |
| } |
| </style> |
| <div class=a> |
| </div> |
| </template> |
| </div> |
| <script> |
| test(() => { |
| let a = host_plain.shadowRoot.querySelector('.a'); |
| assert_equals(getComputedStyle(a).zIndex, '1'); |
| }, '@scope can match :host'); |
| </script> |
| |
| <div id=host_functional> |
| <template shadowrootmode=open> |
| <style> |
| @scope (:host(div)) { |
| .a { |
| z-index: 1; |
| } |
| } |
| /* Should not match: */ |
| @scope (:host(span)) { |
| .a { |
| z-index: 42; |
| } |
| } |
| </style> |
| <div class=a> |
| </div> |
| </template> |
| </div> |
| <script> |
| test(() => { |
| let a = host_functional.shadowRoot.querySelector('.a'); |
| assert_equals(getComputedStyle(a).zIndex, '1'); |
| }, '@scope can match :host(...)'); |
| </script> |
| |
| <div id=host_scope_subject> |
| <template shadowrootmode=open> |
| <style> |
| @scope (:host) { |
| :scope { |
| z-index: 1; |
| } |
| } |
| </style> |
| <div class=a> |
| </div> |
| </template> |
| </div> |
| <script> |
| test(() => { |
| assert_equals(getComputedStyle(host_scope_subject).zIndex, '1'); |
| }, ':scope matches host via the scoping root'); |
| </script> |
| |
| <div id=host_scope_subject_is> |
| <div class=host> |
| <template shadowrootmode=open> |
| <style> |
| /* Should not match host, nor outside shadow. */ |
| :is(:scope, .a, .host) { |
| z-index: 2; |
| } |
| |
| @scope (:host) { |
| :is(:scope, .a) { |
| z-index: 1; |
| } |
| } |
| </style> |
| <div class=a> |
| </div> |
| </template> |
| </div> |
| <div class=a> |
| </div> |
| </div> |
| <script> |
| test(() => { |
| let host = host_scope_subject_is.querySelector('.host'); |
| assert_equals(getComputedStyle(host).zIndex, '1'); |
| let a = host.shadowRoot.querySelector('.a'); |
| assert_equals(getComputedStyle(a).zIndex, '1'); |
| |
| let a_outside = host_scope_subject_is.querySelector('.a'); |
| assert_equals(getComputedStyle(a_outside).zIndex, 'auto'); |
| }, ':scope within :is() matches host via the scoping root'); |
| </script> |
| |
| <div id=implicit_scope_shadow_parent> |
| <div class=host> |
| <template shadowrootmode=open> |
| <style> |
| @scope { |
| /* Matches host */ |
| :scope { |
| z-index: 1; |
| } |
| :scope > .a { |
| z-index: 2; |
| } |
| } |
| </style> |
| <div class=a> |
| </div> |
| </template> |
| </div> |
| </div> |
| <script> |
| test(() => { |
| let host = implicit_scope_shadow_parent.querySelector('.host'); |
| let a = host.shadowRoot.querySelector('.a'); |
| assert_equals(getComputedStyle(host).zIndex, '1'); |
| assert_equals(getComputedStyle(a).zIndex, '2'); |
| }, 'Implicit @scope as direct child of shadow root'); |
| </script> |
| |
| <div id=implicit_scope_constructed> |
| <div class=host> |
| <template shadowrootmode=open> |
| <div class=a> |
| </div> |
| </template> |
| </div> |
| </div> |
| <script> |
| test(() => { |
| let host = implicit_scope_constructed.querySelector('.host'); |
| let sheet = new CSSStyleSheet(); |
| sheet.replaceSync(` |
| @scope { |
| :scope { |
| z-index: 1; |
| } |
| :scope .a { |
| z-index: 2; |
| } |
| `); |
| host.shadowRoot.adoptedStyleSheets = [sheet]; |
| let a = host.shadowRoot.querySelector('.a'); |
| assert_equals(getComputedStyle(host).zIndex, '1'); |
| assert_equals(getComputedStyle(a).zIndex, '2'); |
| }, 'Implicit @scope in construted stylesheet'); |
| </script> |
| |
| <div id=scope_via_parent_pseudo_subject> |
| <div class=host> |
| <template shadowrootmode=open> |
| <style> |
| @scope (:host) { |
| :scope { |
| & { |
| z-index: 1; |
| } |
| } |
| } |
| </style> |
| </template> |
| </div> |
| </div> |
| <script> |
| test(() => { |
| let host = scope_via_parent_pseudo_subject.querySelector('.host'); |
| assert_equals(getComputedStyle(host).zIndex, '1'); |
| }, 'Matching :host via &, :scope (subject)'); |
| </script> |
| |
| <div id=scope_via_parent_pseudo_non_subject> |
| <div class=host> |
| <template shadowrootmode=open> |
| <style> |
| @scope (:host) { |
| :scope .a { |
| & { |
| z-index: 1; |
| } |
| } |
| } |
| </style> |
| <div class=a> |
| </div> |
| </template> |
| </div> |
| </div> |
| <script> |
| test(() => { |
| let host = scope_via_parent_pseudo_non_subject.querySelector('.host'); |
| let a = host.shadowRoot.querySelector('.a'); |
| assert_equals(getComputedStyle(a).zIndex, '1'); |
| }, 'Matching :host via &, :scope (non-subject)'); |
| </script> |
| |
| <div id=scope_via_parent_pseudo_non_subject_child> |
| <div class=host> |
| <template shadowrootmode=open> |
| <style> |
| @scope (:host) { |
| :scope > .a { |
| & { |
| z-index: 1; |
| } |
| } |
| } |
| </style> |
| <div class=a> |
| </div> |
| </template> |
| </div> |
| </div> |
| <script> |
| test(() => { |
| let host = scope_via_parent_pseudo_non_subject_child.querySelector('.host'); |
| let a = host.shadowRoot.querySelector('.a'); |
| assert_equals(getComputedStyle(a).zIndex, '1'); |
| }, 'Matching :host via &, :scope (non-subject, >)'); |
| </script> |
