/*
 * @author Valentin Simonov / http://va.lent.in/
 */

using TouchScript.Editor.EditorUI;
using TouchScript.Layers;
using UnityEditor;
using UnityEngine;

namespace TouchScript.Editor.Layers
{
    [CustomEditor(typeof(FullscreenLayer))]
    internal sealed class FullscreenLayerEditor : UnityEditor.Editor
    {

		public static readonly GUIContent TEXT_HELP = new GUIContent("This component receives all pointers which were not caught by other layers. It sets poitners' Target property to itself, so all fullscreen gestures must be attached to the same GameObject as FullscreenGesture.");

		private SerializedProperty type, camera;
        private FullscreenLayer instance;

        private void OnEnable()
        {
            instance = target as FullscreenLayer;

            type = serializedObject.FindProperty("type");
            camera = serializedObject.FindProperty("_camera");
        }

        public override void OnInspectorGUI()
        {
            serializedObject.Update();

            EditorGUI.BeginChangeCheck();
            EditorGUILayout.PropertyField(type);
            if (EditorGUI.EndChangeCheck())
            {
                instance.Type = (FullscreenLayer.LayerType)type.enumValueIndex;
            }

            if (type.enumValueIndex == (int)FullscreenLayer.LayerType.Camera)
            {
                EditorGUI.BeginChangeCheck();
                EditorGUILayout.PropertyField(camera);
                if (EditorGUI.EndChangeCheck())
                {
                    instance.Camera = camera.objectReferenceValue as Camera;
                }
            }

            EditorGUILayout.LabelField(TEXT_HELP, GUIElements.HelpBox);
        }
    }
}