| <!DOCTYPE html> |
| <html> |
| <title>View transitions: check pseudo element's default styles</title> |
| <link rel="help" href="https://drafts.csswg.org/css-view-transitions-1/"> |
| <link rel="author" href="mailto:vmpstr@chromium.org"> |
| |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| |
| <style> |
| #target { |
| width: 100px; |
| height: 100px; |
| background: blue; |
| contain: paint; |
| view-transition-name: target; |
| mix-blend-mode: multiply; |
| text-orientation: upright; |
| color-scheme: dark light; |
| } |
| ::view-transition-image-pair(target) { |
| position: fixed; |
| } |
| </style> |
| |
| <div id=target></div> |
| |
| <script> |
| promise_test(async () => { |
| assert_implements(document.startViewTransition, "Missing document.startViewTransition"); |
| let transition = document.startViewTransition(() => { |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition").position, "fixed", "::view-transition"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(target)").position, "absolute", "container(target)"); |
| // The position is set via the style rules, so it should be applied once |
| // we create the pseudo elements. |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(target)").position, "fixed", "wrapper(target)"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(target)").position, "absolute", "outgoing(target)"); |
| |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").position, "absolute", "container(root)"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").position, "absolute", "wrapper(root)"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").position, "absolute", "outgoing(root)"); |
| |
| // Per spec, we update pseudo-element styles when activating the |
| // transition, and this is after we invoke the update callback. Therefore, |
| // these computed values should be the default values at this moment. |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(target)").textOrientation, "mixed", "container(target)"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(target)").colorScheme, "normal", "container(target)"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(target)").mixBlendMode, "normal", "container(target)"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").mixBlendMode, "normal", "container(root)"); |
| }); |
| |
| // When transition is ready, the activation of the view transition should be done, so |
| // we have updated the pseudo-element styles. |
| await transition.ready; |
| |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition").position, "fixed", "raf ::view-transition"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(target)").position, "absolute", "raf container(target)"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(target)").mixBlendMode, "multiply", "raf container(target)"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(target)").textOrientation, "upright", "raf container(target)"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(target)").colorScheme, "dark light", "raf container(target)"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(target)").position, "fixed", "raf wrapper(target)"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(target)").position, "absolute", "raf outgoing(target)"); |
| |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").position, "absolute", "raf container(root)"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").mixBlendMode, "normal", "raf container(root)"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").position, "absolute", "raf wrapper(root)"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").position, "absolute", "raf outgoing(root)"); |
| |
| await transition.finished; |
| }, "properties of pseudo elements in update callback"); |
| |
| promise_test(async () => { |
| assert_implements(document.startViewTransition, "Missing document.startViewTransition"); |
| let transition = document.startViewTransition(() => { |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition").position, "fixed"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(target)").position, "absolute"); |
| // The position is set via the style rules, so it should be applied once |
| // we create the pseudo elements. |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(target)").position, "fixed"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(target)").position, "absolute"); |
| |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").position, "absolute"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").position, "absolute"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").position, "absolute"); |
| |
| target.remove(); |
| }); |
| |
| await transition.ready; |
| |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition").position, "fixed"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(target)").position, "absolute"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(target)").mixBlendMode, "multiply"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(target)").textOrientation, "upright"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(target)").colorScheme, "dark light"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(target)").position, "fixed"); |
| |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(target)").position, "absolute"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-new(target)").position, "absolute"); |
| |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(root)").position, "absolute"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-image-pair(root)").position, "absolute"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-old(root)").position, "absolute"); |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-new(root)").position, "absolute"); |
| |
| assert_equals(getComputedStyle(document.documentElement, "::view-transition-group(target)").position, "absolute"); |
| |
| await transition.finished; |
| |
| // The spec doesn't mention whether we should apply the custom ua sheets to |
| // the non-existing pseudo elements. In Chromium, it doesn't apply it, so it |
| // would be the default (i.e. static). However, in WebKit and Gecko, they |
| // still apply the costom ua sheets. Therefore, we accept both cases for now. |
| assert_in_array(getComputedStyle(document.documentElement, "::view-transition-group(target)").position, ["static", "absolute"]); |
| }, "properties of pseudo elements outside of transition"); |
| </script> |
