papegaaij commented on a change in pull request #400: WICKET-6725: replace
display: none by css class
URL: https://github.com/apache/wicket/pull/400#discussion_r368978477
##########
File path:
wicket-core/src/main/java/org/apache/wicket/settings/ResourceSettings.java
##########
@@ -770,4 +777,51 @@ public ResourceSettings setEncodeJSessionId(boolean
encodeJSessionId)
this.encodeJSessionId = encodeJSessionId;
return this;
}
+
+ /**
+ * Returns the resource reference of the core stylesheet for Wicket.
This stylesheet contains
+ * some lowlevel styling used by Wicket. When the Wicket core
stylesheet has been disabled, this
+ * returns an empty {@code Optional}.
+ *
+ * @return The resource reference of the base stylesheet for Wicket.
+ */
+ public Optional<CssResourceReference> getWicketCoreCSS()
+ {
+ return wicketCoreCSS;
+ }
+
+ /**
+ * Replaces the core stylesheet for Wicket. Changes made to the styling
can break functionality
+ * like {@link Component#setOutputMarkupPlaceholderTag(boolean)},
causing components that should
+ * not be visible to be displayed. Make sure the replacement stylesheet
has matching definitions
+ * for the corresponding sections in the Wicket version.
+ *
+ * @param wicketCoreCSS
+ * The replacement styleheet.
+ * @return {@code this} object for chaining
+ */
+ public ResourceSettings setWicketCoreCSS(CssResourceReference
wicketCoreCSS)
+ {
+ if (wicketCoreCSS == null)
+ {
+ throw new NullPointerException(
+ "Cannot set the Wicket core CSS to null, use
disableWicketCoreCSS() instead.");
Review comment:
I deliberately chose not to use `ofNullable`, because disabling the core
stylesheet has to be a conscious decision.
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