Unary plus support for DSL builders in the Tag class.

2 files changed, 25 insertions, 1 deletions

diff --git a/src/main/kotlin/pl/treksoft/kvision/html/Tag.kt b/src/main/kotlin/pl/treksoft/kvision/html/Tag.kt
index 48f6a9eb..f3f41939 100644
--- a/src/main/kotlin/pl/treksoft/kvision/html/Tag.kt
+++ b/src/main/kotlin/pl/treksoft/kvision/html/Tag.kt
@@ -172,6 +172,13 @@ open class Tag(
         return cl
     }
 
+    operator fun String.unaryPlus() {
+        if (content == null)
+            content = this
+        else
+            content += this
+    }
+
     companion object {
         /**
          * DSL builder extension function.
diff --git a/src/test/kotlin/test/pl/treksoft/kvision/html/TagSpec.kt b/src/test/kotlin/test/pl/treksoft/kvision/html/TagSpec.kt
index 91c6df81..29a5c079 100644
--- a/src/test/kotlin/test/pl/treksoft/kvision/html/TagSpec.kt
+++ b/src/test/kotlin/test/pl/treksoft/kvision/html/TagSpec.kt
@@ -78,4 +78,21 @@ class TagSpec : DomSpec {
             )
         }
     }
-}
\ No newline at end of file
+
+    @Test
+    fun renderUnaryPlus() {
+        run {
+            val root = Root("test", true)
+            val tag = Tag(TAG.H1, rich = true) {
+                +"This is <b>h1</b>"
+            }
+            root.add(tag)
+            val element = document.getElementById("test")
+            assertEqualsHtml(
+                "<h1><span>This is <b>h1</b></span></h1>",
+                element?.innerHTML,
+                "Should render correct html tag with children"
+            )
+        }
+    }
+}