On Fri, 29 Mar 2024 15:32:12 GMT, Alexey Ivanov <aiva...@openjdk.org> wrote:
> The value of the > [`text-decoration`](https://www.w3.org/TR/REC-CSS1/#text-decoration) CSS > property is not inherited correctly in Swing. If the `<span>` element is > mixed with `<u>` or `<s>`, only the value from the `style` attribute of > `<span>` is applied. > > The fix to this issue is not as simple as that for the previous one in PR > #17659, [JDK-8323801](https://bugs.openjdk.org/browse/JDK-8323801). Even in > the seemingly simple case where `<u>` is followed by `<span > style='text-decoration: line-through'>`, the situation is more complex > because the styles are stored in `MuxingAttributeSet` in different elements > of the array. > > To resolve this problem, `CSS.Attribute.TEXT_DECORATION` is treated as a > special case. Indeed, it is a special case: the values set to a single > `text-decoration` property should be combined across the entire tree of > nested HTML elements and their styles. > > So, `MuxingAttributeSet` looks for `text-decoration` in the entire array and > combines all the values. > > The same way, `StyleSheet` also goes up the inheritance chain by combining > the current value of `text-decoration` with that from `getResolveParent`. > > The `ConvertSpanAction` combines the value of `text-decoration` of adjacent > `<span>` elements. > > Finally, `ConvertAction` and `CharacterAction` are refactored. The > `ConvertAction` class duplicated the code from `CharacterAction`. Now > `ConvertAction` extends `CharacterAction` and overrides a method to provide > additional handling. > > Thus, [JDK-8325620](https://bugs.openjdk.org/browse/JDK-8325620) is also > resolved by this PR, the action used for `<b>`, `<i>`, `<u>` is > `CharacterAction` as specified. test/jdk/javax/swing/text/html/HTMLDocument/HTMLTextDecoration.java line 125: > 123: contentView.getAttributes() > 124: > .getAttribute(CSS.Attribute.TEXT_DECORATION) > 125: .toString(); It might be good to add a null check before calling .toString() since `contentView.getAttributes().getAttribute(CSS.Attribute.TEXT_DECORATION)` can return null. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/18550#discussion_r1558161327
