| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../../resources/js-test-pre.js"></script> |
| <style> |
| target { display:block; background-color: rgb(1, 2, 3); } |
| target:first-child { } |
| target:last-child { } |
| </style> |
| </head> |
| <body> |
| <div style="display:none"> |
| <target id=target1></target> |
| <target id=target2></target> |
| <target id=target3></target> |
| <target id=target4></target> |
| </div> |
| |
| <script> |
| function findRuleWithSelector(selector) |
| { |
| var styleSheets = document.styleSheets; |
| for (var styleSheetIndex = 0, styleSheetCount = styleSheets.length; styleSheetIndex < styleSheetCount; ++styleSheetIndex) { |
| var styleSheet = styleSheets[styleSheetIndex]; |
| var rules = styleSheet.cssRules; |
| for (var ruleIndex = 0, ruleCount = rules.length; ruleIndex < ruleCount; ++ruleIndex) { |
| var rule = rules[ruleIndex]; |
| if (rule.selectorText === selector) |
| return rule; |
| } |
| } |
| } |
| |
| description("Test that changing an empty rule with CSSOM updates the elements correctly."); |
| debug('Before changing the rules'); |
| shouldBe('window.getComputedStyle(document.getElementById("target1")).backgroundColor','"rgb(1, 2, 3)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target2")).backgroundColor','"rgb(1, 2, 3)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target3")).backgroundColor','"rgb(1, 2, 3)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target4")).backgroundColor','"rgb(1, 2, 3)"'); |
| |
| debug('Changing the first-child rule'); |
| findRuleWithSelector('target:first-child').style.backgroundColor = 'rgb(4, 5, 6)'; |
| shouldBe('window.getComputedStyle(document.getElementById("target1")).backgroundColor','"rgb(4, 5, 6)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target2")).backgroundColor','"rgb(1, 2, 3)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target3")).backgroundColor','"rgb(1, 2, 3)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target4")).backgroundColor','"rgb(1, 2, 3)"'); |
| |
| debug('Changing the last-child rule'); |
| findRuleWithSelector('target:last-child').style.backgroundColor = 'rgb(7, 8, 9)'; |
| shouldBe('window.getComputedStyle(document.getElementById("target1")).backgroundColor','"rgb(4, 5, 6)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target2")).backgroundColor','"rgb(1, 2, 3)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target3")).backgroundColor','"rgb(1, 2, 3)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target4")).backgroundColor','"rgb(7, 8, 9)"'); |
| |
| debug('Emptying the first-child rule'); |
| findRuleWithSelector('target:first-child').style.backgroundColor = ''; |
| shouldBe('window.getComputedStyle(document.getElementById("target1")).backgroundColor','"rgb(1, 2, 3)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target2")).backgroundColor','"rgb(1, 2, 3)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target3")).backgroundColor','"rgb(1, 2, 3)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target4")).backgroundColor','"rgb(7, 8, 9)"'); |
| |
| debug('Emptying the last-child rule'); |
| findRuleWithSelector('target:last-child').style.backgroundColor = ''; |
| shouldBe('window.getComputedStyle(document.getElementById("target1")).backgroundColor','"rgb(1, 2, 3)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target2")).backgroundColor','"rgb(1, 2, 3)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target3")).backgroundColor','"rgb(1, 2, 3)"'); |
| shouldBe('window.getComputedStyle(document.getElementById("target4")).backgroundColor','"rgb(1, 2, 3)"'); |
| |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
