improve work with modal dialogs

src/jsMain/kotlin/dev/inmo/jsuikit/modifiers/UIKitModal.kt

@@ -0,0 +1,58 @@
+package dev.inmo.jsuikit.modifiers
+
+import dev.inmo.jsuikit.utils.buildAttribute
+
+sealed class UIKitModal(
+    classname: String,
+    override val otherAttrs: Map<String, String> = emptyMap()
+) : UIKitModifier {
+    override val classes: Array<String> = arrayOf(classname)
+
+    object Dialog : UIKitModal("uk-modal-dialog")
+    object Title : UIKitModal("uk-modal-title")
+
+    object Header : UIKitModal("uk-modal-header")
+    object Body : UIKitModal("uk-modal-body")
+    object Footer : UIKitModal("uk-modal-footer")
+
+    object Container : UIKitModal("uk-modal-container")
+    object Full : UIKitModal("uk-modal-full")
+
+    object Page : UIKitModal("uk-modal-page")
+
+    sealed class Close(classname: String) : UIKitModal(classname) {
+        object Default : Close("uk-modal-close-default")
+        object Outside : Close("uk-modal-close-outside")
+        object Full : Close("uk-modal-close-full")
+
+        companion object : Close("uk-modal-close")
+    }
+
+    internal class WithCustomAttributes(
+        otherAttrs: Map<String, String> = emptyMap()
+    ) : UIKitModal("uk-modal", otherAttrs)
+
+    companion object : UIKitModal("uk-modal", mapOf("uk-modal" to "")) {
+        operator fun invoke(
+            escClose: Boolean? = null,
+            backgroundClose: Boolean? = null,
+            stack: Boolean? = null,
+            container: Boolean? = null,
+            classPage: String? = null,
+            classPanel: String? = null,
+            closingSelection: String? = null,
+        ): UIKitModal = WithCustomAttributes(
+            mapOf(
+                buildAttribute("uk-modal") {
+                    "esc-close" to escClose
+                    "bg-close" to backgroundClose
+                    "stack" to stack
+                    "container" to container
+                    "cls-page" to classPage
+                    "cls-panel" to classPanel
+                    "sel-close" to closingSelection
+                }
+            )
+        )
+    }
+}