[view] add AlertView

src/main/haxework/view/popup/AlertView.hx

@@ -0,0 +1,21 @@
+package haxework.view.popup;
+
+import haxework.view.form.LabelView;
+import haxework.view.text.TextView;
+import promhx.Promise;
+
+@:template class AlertView extends PopupView<Dynamic> {
+
+    @:view var header:LabelView;
+    @:view var message:TextView;
+
+    public function new() {
+        super();
+    }
+
+    public static function alert(message:String):Promise<Dynamic> {
+        var result = new AlertView();
+        result.message.text = message;
+        return result.show();
+    }
+}

src/main/haxework/view/popup/AlertView.yaml

@@ -0,0 +1,31 @@
+---
+view:
+    $type: haxework.view.group.VGroupView
+    geometry.width: 400
+    geometry.height: 200
+    geometry.padding: 10
+    geometry.hAlign: center
+    geometry.vAlign: middle
+    style: frame
+    views:
+        -   $type: haxework.view.group.HGroupView
+            geometry.width: 100%
+            layout.margin: 10
+            views:
+                -   id: header
+                    $type: haxework.view.form.LabelView
+        -   id: message
+            $type: haxework.view.form.LabelView
+            font.align: CENTER
+            layout.hAlign: center
+            layout.vAlign: middle
+            geometry.width: 100%
+            geometry.height: 100%
+        -   $type: haxework.view.group.HGroupView
+            geometry.width: 100%
+            layout.hAlign: center
+            layout.margin: 10
+            views:
+                -   $type: haxework.view.form.ButtonView
+                    text: OK
+                    +onPress: ~close('ok')