Initial Commit

Library/PackageCache/com.unity.ugui@1.0.0/Editor/EventSystem/EventTriggerEditor.cs

@@ -0,0 +1,122 @@
+using System;
+using UnityEngine;
+using UnityEngine.EventSystems;
+
+namespace UnityEditor.EventSystems
+{
+    [CustomEditor(typeof(EventTrigger), true)]
+    public class EventTriggerEditor : Editor
+    {
+        SerializedProperty m_DelegatesProperty;
+
+        GUIContent m_IconToolbarMinus;
+        GUIContent m_EventIDName;
+        GUIContent[] m_EventTypes;
+        GUIContent m_AddButonContent;
+
+        protected virtual void OnEnable()
+        {
+            m_DelegatesProperty = serializedObject.FindProperty("m_Delegates");
+            m_AddButonContent = EditorGUIUtility.TrTextContent("Add New Event Type");
+            m_EventIDName = new GUIContent("");
+            // Have to create a copy since otherwise the tooltip will be overwritten.
+            m_IconToolbarMinus = new GUIContent(EditorGUIUtility.IconContent("Toolbar Minus"));
+            m_IconToolbarMinus.tooltip = "Remove all events in this list.";
+
+            string[] eventNames = Enum.GetNames(typeof(EventTriggerType));
+            m_EventTypes = new GUIContent[eventNames.Length];
+            for (int i = 0; i < eventNames.Length; ++i)
+            {
+                m_EventTypes[i] = new GUIContent(eventNames[i]);
+            }
+        }
+
+        public override void OnInspectorGUI()
+        {
+            serializedObject.Update();
+            int toBeRemovedEntry = -1;
+
+            EditorGUILayout.Space();
+
+            Vector2 removeButtonSize = GUIStyle.none.CalcSize(m_IconToolbarMinus);
+
+            for (int i = 0; i < m_DelegatesProperty.arraySize; ++i)
+            {
+                SerializedProperty delegateProperty = m_DelegatesProperty.GetArrayElementAtIndex(i);
+                SerializedProperty eventProperty = delegateProperty.FindPropertyRelative("eventID");
+                SerializedProperty callbacksProperty = delegateProperty.FindPropertyRelative("callback");
+                m_EventIDName.text = eventProperty.enumDisplayNames[eventProperty.enumValueIndex];
+
+                EditorGUILayout.PropertyField(callbacksProperty, m_EventIDName);
+                Rect callbackRect = GUILayoutUtility.GetLastRect();
+
+                Rect removeButtonPos = new Rect(callbackRect.xMax - removeButtonSize.x - 8, callbackRect.y + 1, removeButtonSize.x, removeButtonSize.y);
+                if (GUI.Button(removeButtonPos, m_IconToolbarMinus, GUIStyle.none))
+                {
+                    toBeRemovedEntry = i;
+                }
+
+                EditorGUILayout.Space();
+            }
+
+            if (toBeRemovedEntry > -1)
+            {
+                RemoveEntry(toBeRemovedEntry);
+            }
+
+            Rect btPosition = GUILayoutUtility.GetRect(m_AddButonContent, GUI.skin.button);
+            const float addButonWidth = 200f;
+            btPosition.x = btPosition.x + (btPosition.width - addButonWidth) / 2;
+            btPosition.width = addButonWidth;
+            if (GUI.Button(btPosition, m_AddButonContent))
+            {
+                ShowAddTriggermenu();
+            }
+
+            serializedObject.ApplyModifiedProperties();
+        }
+
+        private void RemoveEntry(int toBeRemovedEntry)
+        {
+            m_DelegatesProperty.DeleteArrayElementAtIndex(toBeRemovedEntry);
+        }
+
+        void ShowAddTriggermenu()
+        {
+            // Now create the menu, add items and show it
+            GenericMenu menu = new GenericMenu();
+            for (int i = 0; i < m_EventTypes.Length; ++i)
+            {
+                bool active = true;
+
+                // Check if we already have a Entry for the current eventType, if so, disable it
+                for (int p = 0; p < m_DelegatesProperty.arraySize; ++p)
+                {
+                    SerializedProperty delegateEntry = m_DelegatesProperty.GetArrayElementAtIndex(p);
+                    SerializedProperty eventProperty = delegateEntry.FindPropertyRelative("eventID");
+                    if (eventProperty.enumValueIndex == i)
+                    {
+                        active = false;
+                    }
+                }
+                if (active)
+                    menu.AddItem(m_EventTypes[i], false, OnAddNewSelected, i);
+                else
+                    menu.AddDisabledItem(m_EventTypes[i]);
+            }
+            menu.ShowAsContext();
+            Event.current.Use();
+        }
+
+        private void OnAddNewSelected(object index)
+        {
+            int selected = (int)index;
+
+            m_DelegatesProperty.arraySize += 1;
+            SerializedProperty delegateEntry = m_DelegatesProperty.GetArrayElementAtIndex(m_DelegatesProperty.arraySize - 1);
+            SerializedProperty eventProperty = delegateEntry.FindPropertyRelative("eventID");
+            eventProperty.enumValueIndex = selected;
+            serializedObject.ApplyModifiedProperties();
+        }
+    }
+}