| <!DOCTYPE html> |
| <script src="../../../resources/js-test.js"></script> |
| <style> |
| #match { background-color: red } |
| #hover:hover #match { background-color: green } |
| </style> |
| <div id="hover"> |
| Hover this text ... |
| <span></span> |
| <span></span> |
| <span></span> |
| <span></span> |
| <span id="match"> and this should have a green background.</span> |
| </div> |
| <div id="host"></div> |
| <script> |
| description("Removing a shadow tree stylesheet should cause an invalidation set update.") |
| |
| shouldBeDefined("window.internals"); |
| shouldBeDefined("window.eventSender"); |
| |
| var red = "rgb(255, 0, 0)"; |
| var green = "rgb(0, 128, 0)"; |
| |
| function hoverElement(element) { |
| eventSender.mouseMoveTo(0, 0); |
| document.body.offsetLeft; // force recalc. |
| var x = element.offsetLeft + 1; |
| var y = element.offsetTop + 1; |
| eventSender.mouseMoveTo(x, y); |
| } |
| |
| // Add and remove a ":hover *" rule from a shadow tree. |
| var root = host.createShadowRoot(); |
| root.innerHTML = "<style>:hover * { background-color: pink }</style>"; |
| hover.offsetTop; |
| root.innerHTML = ""; |
| |
| shouldBe("getComputedStyle(match).backgroundColor", "red"); |
| |
| hoverElement(hover); |
| |
| shouldBe("internals.updateStyleAndReturnAffectedElementCount()", "2"); |
| shouldBe("getComputedStyle(match).backgroundColor", "green"); |
| |
| </script> |
