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| (Empty) |
| 1 <!DOCTYPE html> | |
| 2 <script src="../../../resources/testharness.js"></script> | |
| 3 <script src="../../../resources/testharnessreport.js"></script> | |
| 4 <div id="testContainer"> | |
| 5 <div id="outer"> | |
| 6 <div id="inner"> | |
| 7 <div id="innermost"></div> | |
| 8 </div> | |
| 9 </div> | |
| 10 </div> | |
| 11 <script> | |
| 12 | |
| 13 var independent_properties = [ | |
| 14 // Property name, Value 1, Value 2 | |
| 15 ["pointerEvents", "auto", "all"], | |
| 16 ["visibility", "visible", "hidden"], | |
| 17 ]; | |
| 18 | |
| 19 independent_properties.forEach(function(test_data) | |
| 20 { | |
| 21 var propertyName = test_data[0]; | |
| 22 var value1 = test_data[1]; | |
| 23 var value2 = test_data[2]; | |
| 24 | |
| 25 test(function(t) | |
| 26 { | |
| 27 if (!window.internals) | |
| 28 assert_unreached('This test requires window.internals.'); | |
| 29 | |
| 30 // Create a nested div structure for the test. | |
| 31 var outer = document.createElement("div"); | |
| 32 var inner = document.createElement("div"); | |
| 33 var innermost = document.createElement("div"); | |
| 34 testContainer.appendChild(outer); | |
| 35 outer.appendChild(inner); | |
| 36 inner.appendChild(innermost); | |
| 37 | |
| 38 outer.offsetTop; // Force recalc. | |
| 39 assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 0); | |
| 40 | |
| 41 // Set the whole container to the first value. | |
| 42 testContainer.style[propertyName] = value1; | |
| 43 | |
| 44 // All elements start as the first value. | |
| 45 assert_equals(getComputedStyle(outer)[propertyName], value1); | |
| 46 assert_equals(getComputedStyle(inner)[propertyName], value1); | |
| 47 assert_equals(getComputedStyle(innermost)[propertyName], value1); | |
| 48 outer.offsetTop; // Force recalc. | |
| 49 | |
| 50 // Changing outer also changes inner and innermost. | |
| 51 outer.style[propertyName] = value2; | |
| 52 assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 1, "
Only outer should be recalced (3 without fast path)"); | |
| 53 | |
| 54 assert_equals(getComputedStyle(outer)[propertyName], value2); | |
| 55 assert_equals(getComputedStyle(inner)[propertyName], value2); | |
| 56 assert_equals(getComputedStyle(innermost)[propertyName], value2); | |
| 57 outer.offsetTop; // Force recalc. | |
| 58 | |
| 59 // Changing inner to value1 changes all its children to that value. | |
| 60 inner.style[propertyName] = value1; | |
| 61 assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 1, "
Only inner should be recalced (2 without fast path)"); | |
| 62 | |
| 63 assert_equals(getComputedStyle(outer)[propertyName], value2); | |
| 64 assert_equals(getComputedStyle(inner)[propertyName], value1); | |
| 65 assert_equals(getComputedStyle(innermost)[propertyName], value1); | |
| 66 outer.offsetTop; // Force recalc. | |
| 67 | |
| 68 // Clear for next test. | |
| 69 outer.remove(); | |
| 70 }, "Changing " + propertyName + ", an independent inherited property, propag
ates correctly with a single style recalc."); | |
| 71 }) | |
| 72 </script> | |
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Chromium Code Reviews
Issue 2213223004:
Revert of Add a fast-path for independent inherited properties (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@computedstyle_cleanup_rename_final_member_fields