Editor stuff

Assets/Plugins/com.unity.uiextensions/Editor/CanvasGroupActivator.cs

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+/// Credit dakka
+/// Sourced from - http://forum.unity3d.com/threads/scripts-useful-4-6-scripts-collection.264161/#post-1752415
+/// Notes - Mod from Yilmaz Kiymaz's editor scripts presentation at Unite 2013
+/// Updated simonDarksideJ - removed Linq use, not required.
+
+using UnityEditor;
+
+namespace UnityEngine.UI.Extensions
+{
+    public class CanvasGroupActivator : EditorWindow
+    {
+        [MenuItem("Window/UI/Extensions/Canvas Groups Activator")]
+        public static void InitWindow()
+        {
+            EditorWindow.GetWindow<CanvasGroupActivator>();
+        }
+
+        CanvasGroup[] canvasGroups;
+
+        void OnEnable()
+        {
+            ObtainCanvasGroups();
+        }
+
+        void OnFocus()
+        {
+            ObtainCanvasGroups();
+        }
+
+        void ObtainCanvasGroups()
+        {
+            canvasGroups = GameObject.FindObjectsOfType<CanvasGroup>();
+        }
+
+        void OnGUI()
+        {
+            if (canvasGroups == null)
+            {
+                return;
+            }
+
+            GUILayout.Space(10f);
+            GUILayout.Label("Canvas Groups");
+
+            for (int i = 0; i < canvasGroups.Length; i++)
+            {
+                if (canvasGroups[i] == null) { continue; }
+
+                bool initialActive = false;
+                if (canvasGroups[i].alpha == 1.0f)
+                    initialActive = true;
+
+                bool active = EditorGUILayout.Toggle(canvasGroups[i].name, initialActive);
+                if (active != initialActive)
+                {
+                    //If deactivated and initially active
+                    if (!active && initialActive)
+                    {
+                        //Deactivate this
+                        canvasGroups[i].alpha = 0f;
+                        canvasGroups[i].interactable = false;
+                        canvasGroups[i].blocksRaycasts = false;
+                    }
+                    //If activated and initially deactivate
+                    else if (active && !initialActive)
+                    {
+                        //Deactivate all others and activate this
+                        HideAllGroups();
+
+                        canvasGroups[i].alpha = 1.0f;
+                        canvasGroups[i].interactable = true;
+                        canvasGroups[i].blocksRaycasts = true;
+                    }
+                }
+            }
+
+            GUILayout.Space(5f);
+
+            if (GUILayout.Button("Show All"))
+            {
+                ShowAllGroups();
+            }
+
+            if (GUILayout.Button("Hide All"))
+            {
+                HideAllGroups();
+            }
+        }
+
+        void ShowAllGroups()
+        {
+            foreach (var group in canvasGroups)
+            {
+                if (group != null)
+                {
+                    group.alpha = 1.0f;
+                    group.interactable = true;
+                    group.blocksRaycasts = true;
+                }
+            }
+        }
+
+        void HideAllGroups()
+        {
+            foreach (var group in canvasGroups)
+            {
+                if (group != null)
+                {
+                    group.alpha = 0;
+                    group.interactable = false;
+                    group.blocksRaycasts = false;
+                }
+            }
+        }
+    }
+}