jdaugherty commented on code in PR #15560:
URL: https://github.com/apache/grails-core/pull/15560#discussion_r3058366415
##########
grails-gsp/plugin/src/main/groovy/org/grails/plugins/web/taglib/ApplicationTagLib.groovy:
##########
@@ -471,4 +471,68 @@ class ApplicationTagLib implements
ApplicationContextAware, InitializingBean, Gr
// encoding is handled in GroovyPage.invokeTag and
GroovyPage.captureTagOutput
body()
}
+
+ /**
+ * Renders flash.message, flash.error, and flash.warning as Bootstrap
alert divs.
+ * Automatically skips rendering if already called during this request,
preventing
+ * duplicate display when used in both pages and layouts.
+ *
+ * @emptyTag
+ *
+ * @attr messageClass CSS class for flash.message alerts (default: 'alert
alert-success alert-dismissible fade show')
+ * @attr messageIcon Icon class for flash.message alerts (default: 'bi
bi-check-circle me-2')
+ * @attr errorClass CSS class for flash.error alerts (default: 'alert
alert-danger alert-dismissible fade show')
+ * @attr errorIcon Icon class for flash.error alerts (default: 'bi
bi-exclamation-triangle me-2')
+ * @attr warningClass CSS class for flash.warning alerts (default: 'alert
alert-warning alert-dismissible fade show')
+ * @attr warningIcon Icon class for flash.warning alerts (default: 'bi
bi-exclamation-circle me-2')
+ * @attr role ARIA role for alert divs (default: 'alert')
+ * @attr dismissible Whether to show a close button (default: true)
+ */
+ Closure flashMessages = { attrs ->
Review Comment:
I'm happy to merge this if we have app level config values for this stuff.
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