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using UnityEngine;
using UnityEditor;
using System.Collections.Generic;
using System.Reflection;
using System.Linq;
using System.Collections;
using System;
namespace MMO.Modifier
{
///Proviving a UnityEditor.GenericMenu, shows a complete popup browser.
public class GenericMenuBrowser : PopupWindowContent
{
//class node used in browser
public class MenuNode
{
public MenuItemInfo item = null;
public MenuNode parent = null;
public Dictionary<string, MenuNode> children = new Dictionary<string, MenuNode>(System.StringComparer.OrdinalIgnoreCase);
public string name = null;
public bool unfolded = true;
public string fullPath = null;
//Leafs have menu items
public bool isLeaf
{
get { return item != null; }
}
}
///MenuItemInfo exposition
public class MenuItemInfo
{
public GUIContent content;
public bool separator;
public bool selected;
public GenericMenu.MenuFunction func;
public GenericMenu.MenuFunction2 func2;
public object userData;
public MenuItemInfo(GUIContent c, bool sep, bool slc, GenericMenu.MenuFunction f1, GenericMenu.MenuFunction2 f2, object o)
{
content = c;
separator = sep;
selected = slc;
func = f1;
func2 = f2;
userData = o;
}
}
private static GenericMenuBrowser current;
private static GenericMenu boundMenu;
private static MenuItemInfo[] items;
private static MenuNode rootNode = new MenuNode();
private static List<MenuNode> leafNodes;
private static MenuNode currentNode = null;
private const float HELP_RECT_HEIGHT = 30;
private string title;
private Color hoverColor = new Color(0.5f, 0.5f, 1, 0.3f);
private Vector2 scrollPos;
private string lastSearch;
private string search;
private GUIStyle headerStyle;
private int hoveringIndex;
private bool init;
private float helpRectRequiredHeight = 0;
private static Texture2D _tex;
private static Texture2D tex
{
get
{
if (_tex == null)
{
_tex = new Texture2D(1, 1);
_tex.hideFlags = HideFlags.HideAndDontSave;
}
return _tex;
}
}
readonly public static Texture2D folderIcon = EditorGUIUtility.FindTexture("Folder Icon");
private GUIStyle _helpStyle;
private GUIStyle helpStyle
{
get
{
if (_helpStyle == null)
{
_helpStyle = new GUIStyle("label");
_helpStyle.wordWrap = true;
_helpStyle.richText = true;
_helpStyle.alignment = TextAnchor.UpperLeft;
}
return _helpStyle;
}
}
public override Vector2 GetWindowSize() { return new Vector2(250, Mathf.Max(350 + helpRectRequiredHeight, 350)); }
///Shows the popup menu at position and with title
public static void Show(GenericMenu newMenu, Vector2 pos, string title)
{
PopupWindow.Show(new Rect(pos.x, pos.y, 0, 0), new GenericMenuBrowser(newMenu, title));
}
[UnityEditor.InitializeOnLoadMethod]
static void Initialize()
{
UnityEditor.EditorApplication.update += OnEditorUpdate;
}
//So that threads work in Editor too
static void OnEditorUpdate()
{
}
public static GUIStyle toolbarSearchTextField;
public static GUIStyle toolbarSearchCancelButton;
public static GUIStyle shadowedBackground;
public static GUIStyle leftLabel;
//init
public GenericMenuBrowser(GenericMenu newMenu, string title)
{
current = this;
this.title = title;
rootNode = new MenuNode();
currentNode = rootNode;
headerStyle = new GUIStyle("label");
headerStyle.alignment = TextAnchor.UpperCenter;
headerStyle.fontSize = 16;
headerStyle.fontStyle = FontStyle.Bold;
toolbarSearchTextField = new GUIStyle("ToolbarSeachTextField");
toolbarSearchTextField.fontSize = 11;
toolbarSearchTextField.fixedHeight = 16;
toolbarSearchCancelButton = new GUIStyle("ToolbarSeachCancelButton");
toolbarSearchCancelButton.fixedHeight = 16;
shadowedBackground = "CurveEditorBackground";
leftLabel = new GUIStyle("label");
hoveringIndex = -1;
search = null;
lastSearch = null;
SetMenu(newMenu);
}
//Set the menu.
public static void SetMenu(GenericMenu newMenu)
{
if (newMenu == null)
{
return;
}
boundMenu = newMenu;
GenerateTree();
}
public override void OnOpen() { }
public override void OnClose() { }
///Gets an array of MenuItemInfo out of the GenericMenu provided
public static MenuItemInfo[] GetMenuItems(GenericMenu menu)
{
var result = new List<MenuItemInfo>();
var field = typeof(GenericMenu).GetField("menuItems", BindingFlags.Instance | BindingFlags.NonPublic);
var items = field.GetValue(menu) as ArrayList;
foreach (var item in items)
{
var type = item.GetType();
var content = type.GetField("content").GetValue(item) as GUIContent;
var separator = (bool)type.GetField("separator").GetValue(item);
var selected = (bool)type.GetField("on").GetValue(item);
var func1 = type.GetField("func").GetValue(item) as GenericMenu.MenuFunction;
var func2 = type.GetField("func2").GetValue(item) as GenericMenu.MenuFunction2;
var userData = type.GetField("userData").GetValue(item);
result.Add(new MenuItemInfo(content, separator, selected, func1, func2, userData));
}
return result.ToArray();
}
///A Search Field
public static string SearchField(string search)
{
GUILayout.BeginHorizontal();
search = EditorGUILayout.TextField(search, toolbarSearchTextField);
if (GUILayout.Button(string.Empty, toolbarSearchCancelButton))
{
search = string.Empty;
GUIUtility.keyboardControl = 0;
}
GUILayout.EndHorizontal();
return search;
}
///A thin separator
public static void Separator()
{
var lastRect = GUILayoutUtility.GetLastRect();
GUILayout.Space(7);
GUI.color = new Color(0, 0, 0, 0.3f);
GUI.DrawTexture(Rect.MinMaxRect(lastRect.xMin, lastRect.yMax + 4, lastRect.xMax, lastRect.yMax + 6), tex);
GUI.color = Color.white;
}
///A thick separator similar to ngui. Thanks
public static void BoldSeparator()
{
var lastRect = GUILayoutUtility.GetLastRect();
GUILayout.Space(1);
GUI.color = new Color(0, 0, 0, 0.3f);
GUI.DrawTexture(new Rect(0, lastRect.yMax + 1, Screen.width, 2), tex);
GUI.DrawTexture(new Rect(0, lastRect.yMax + 3, Screen.width, 1), tex);
GUI.color = Color.white;
}
//Generate the tree node structure out of the items
static void GenerateTree()
{
items = GetMenuItems(boundMenu);
leafNodes = new List<MenuNode>();
for (var i = 0; i < items.Length; i++)
{
var item = items[i];
var itemPath = item.content.text;
var parts = itemPath.Split('/');
MenuNode current = rootNode;
var path = string.Empty;
for (var j = 0; j < parts.Length; j++)
{
var part = parts[j];
path += "/" + part;
MenuNode child = null;
if (!current.children.TryGetValue(part, out child))
{
child = new MenuNode { name = part, parent = current };
child.fullPath = path;
current.children[part] = child;
if (part == parts.Last())
{
child.item = item;
leafNodes.Add(child);
}
}
current = child;
}
}
}
//Show stuff
public override void OnGUI(Rect rect)
{
var e = Event.current;
EditorGUIUtility.SetIconSize(Vector2.zero);
hoveringIndex = Mathf.Clamp(hoveringIndex, -1, currentNode.children.Count - 1);
if (EditorGUIUtility.isProSkin)
{
GUI.Box(rect, string.Empty, shadowedBackground);
}
var headerHeight = currentNode.parent != null ? 72 : 45;
var headerRect = new Rect(0, 0, rect.width, headerHeight);
DoHeader(headerRect, e);
var treeRect = Rect.MinMaxRect(0, headerHeight, rect.width, rect.height - HELP_RECT_HEIGHT);
DoTree(treeRect, e);
var helpRect = Rect.MinMaxRect(2, rect.height - HELP_RECT_HEIGHT + 2, rect.width - 2, rect.height - 2);
DoFooter(helpRect, e);
//handle the events
HandeEvents(e);
if (!init)
{
init = true;
EditorGUI.FocusTextInControl("SearchToolbar");
}
EditorGUIUtility.SetIconSize(Vector2.zero);
}
void DoHeader(Rect headerRect, Event e)
{
//HEADER
GUILayout.Label(title, headerStyle);
///SEARCH
if (e.keyCode == KeyCode.DownArrow) { GUIUtility.keyboardControl = 0; }
if (e.keyCode == KeyCode.UpArrow) { GUIUtility.keyboardControl = 0; }
GUILayout.BeginHorizontal();
GUI.SetNextControlName("SearchToolbar");
search = SearchField(search);
GUILayout.EndHorizontal();
BoldSeparator();
///BACK
if (currentNode.parent != null && string.IsNullOrEmpty(search))
{
GUILayout.Space(2);
GUILayout.BeginHorizontal("box");
GUILayout.Label("◄", GUILayout.Width(16));
string nodeName = string.Empty;
if (string.IsNullOrEmpty(currentNode.parent.name))
{
nodeName = string.Format("{0}", currentNode.name);
}
else
{
nodeName = string.Format("{0}/{1}", currentNode.parent.name, currentNode.name);
}
GUILayout.Box(nodeName, "label", GUILayout.Width(0), GUILayout.ExpandWidth(true));
GUILayout.EndHorizontal();
var lastRect = GUILayoutUtility.GetLastRect();
if (e.type == EventType.MouseDown && e.button == 0 && lastRect.Contains(e.mousePosition))
{
e.Use();
currentNode = currentNode.parent;
}
if (lastRect.Contains(e.mousePosition))
{
GUI.color = hoverColor;
GUI.DrawTexture(lastRect, EditorGUIUtility.whiteTexture);
GUI.color = Color.white;
base.editorWindow.Repaint();
hoveringIndex = -1;
}
}
}
///Returns whether or not the input is valid for a search match vs the target.
///Done by splitting input to words and checking sequential occurency within target string.
public static bool SearchMatch(string input, string target)
{
//ignore case
input = input.ToUpper();
target = target.ToUpper();
//treat dot as spaces and split to words
var words = input.Replace('.', ' ').Split(' ');
//at least one word should also be contained in target leaf name in case we have path
var leafName = target.Contains('/') ? target.Substring(target.LastIndexOf('/') + 1) : target;
//if fewer than 3 chars, do a direct match check with leaf name
if (input.Length <= 2)
{
return input == leafName;
}
var match = false;
var lastIndex = -1;
foreach (var word in words)
{
if (!target.Contains(word))
{
return false;
}
var index = target.IndexOf(word);
if (lastIndex > index)
{
return false;
}
if (leafName.Contains(word))
{
match = true;
}
lastIndex = index;
}
return match;
}
//THE TREE
void DoTree(Rect treeRect, Event e)
{
GUILayout.BeginArea(treeRect);
scrollPos = EditorGUILayout.BeginScrollView(scrollPos, false, false);
GUILayout.BeginVertical();
if (search != lastSearch)
{
hoveringIndex = 0;
if (!string.IsNullOrEmpty(search))
{
var searchRootNode = new MenuNode() { name = "Search Root" };
foreach (var node in leafNodes)
{
if (SearchMatch(search, node.fullPath))
{
searchRootNode.children[node.fullPath] = node;
}
}
currentNode = searchRootNode;
}
else
{
currentNode = rootNode;
}
lastSearch = search;
}
var i = 0;
var itemAdded = false;
MenuNode lastParent = null;
foreach (var childPair in currentNode.children)
{
var node = childPair.Value;
var leafItem = node.item;
var icon = leafItem != null ? leafItem.content.image : folderIcon;
var isDisabled = leafItem != null && leafItem.func == null && leafItem.func2 == null;
//when with search, show category on top
if (!string.IsNullOrEmpty(search))
{
var currentParent = node.parent;
if (currentParent != lastParent)
{
lastParent = currentParent;
GUI.color = EditorGUIUtility.isProSkin ? Color.black : Color.white;
GUILayout.BeginHorizontal("box");
GUI.color = Color.white;
string path = currentParent.fullPath;
if (path != null && path.StartsWith("/"))
{
path = path.Substring(1);
}
var headerLabel = string.Format("{0}{1}", currentParent.unfolded ? "▼" : "▶", path);
if (GUILayout.Button(headerLabel, leftLabel, GUILayout.Height(16)))
{
currentParent.unfolded = !currentParent.unfolded;
}
GUILayout.EndHorizontal();
}
if (!node.parent.unfolded)
{
continue;
}
}
if (leafItem != null && leafItem.separator)
{
Separator();
continue;
}
itemAdded = true;
GUI.color = EditorGUIUtility.isProSkin ? Color.white : new Color(0.8f, 0.8f, 0.8f, 1);
GUILayout.BeginHorizontal("box");
GUI.color = Color.white;
//Prefix icon
//GUILayout.Label(icon, GUILayout.Width(32), GUILayout.Height(16));
GUI.color = Color.white;
GUI.enabled = !isDisabled;
//Content
var label = node.name;
var text = label;
GUILayout.Box(text, "label", GUILayout.Width(0), GUILayout.ExpandWidth(true), GUILayout.Height(16));
//string dot = "●";
GUILayout.Label(leafItem != null ? "": "►", GUILayout.Width(20), GUILayout.Height(16));
GUILayout.EndHorizontal();
var elementRect = GUILayoutUtility.GetLastRect();
if (e.type == EventType.MouseDown && e.button == 0 && elementRect.Contains(e.mousePosition))
{
e.Use();
if (leafItem != null)
{
ExecuteItemFunc(leafItem);
break;
}
else
{
currentNode = node;
hoveringIndex = 0;
break;
}
}
if (e.type == EventType.MouseMove && elementRect.Contains(e.mousePosition))
{
hoveringIndex = i;
}
if (hoveringIndex == i)
{
GUI.color = hoverColor;
GUI.DrawTexture(elementRect, EditorGUIUtility.whiteTexture);
GUI.color = Color.white;
base.editorWindow.Repaint();
}
i++;
GUI.enabled = true;
}
if (!itemAdded)
{
GUILayout.Label("No results to display");
}
GUILayout.EndVertical();
EditorGUILayout.EndScrollView();
GUILayout.EndArea();
}
///HELP AREA
void DoFooter(Rect helpRect, Event e)
{
helpRectRequiredHeight = 0;
var hoveringNode = hoveringIndex >= 0 && currentNode.children.Count > 0 ? currentNode.children.Values.ToList()[hoveringIndex] : null;
GUI.color = new Color(0, 0, 0, 0.3f);
GUI.Box(helpRect, string.Empty, "TextField");
GUI.color = Color.white;
GUILayout.BeginArea(helpRect);
GUILayout.BeginVertical();
var doc = string.Empty;
if (hoveringNode != null && hoveringNode.item != null)
{
doc = hoveringNode.item.content.tooltip;
}
GUILayout.Label(doc, helpStyle);
GUILayout.EndVertical();
GUILayout.EndArea();
}
//Executes the item's registered delegate
void ExecuteItemFunc(MenuItemInfo item)
{
if (item.func != null)
{
item.func();
}
else
{
item.func2(item.userData);
}
base.editorWindow.Close();
}
//Handle events
void HandeEvents(Event e)
{
//Go back with right click as well...
if (e.type == EventType.MouseDown && e.button == 1)
{
if (currentNode.parent != null)
{
currentNode = currentNode.parent;
}
e.Use();
}
if (e.type == EventType.KeyDown)
{
if (e.keyCode == KeyCode.RightArrow || e.keyCode == KeyCode.Return)
{
var next = currentNode.children.Values.ToList()[hoveringIndex];
if (e.keyCode == KeyCode.Return && next.item != null)
{
ExecuteItemFunc(next.item);
}
else if (next.item == null)
{
currentNode = next;
hoveringIndex = 0;
}
return;
}
if (e.keyCode == KeyCode.LeftArrow)
{
var previous = currentNode.parent;
if (previous != null)
{
hoveringIndex = currentNode.parent.children.Values.ToList().IndexOf(currentNode);
currentNode = previous;
}
return;
}
if (e.keyCode == KeyCode.DownArrow)
{
hoveringIndex++;
return;
}
if (e.keyCode == KeyCode.UpArrow)
{
hoveringIndex--;
return;
}
if (e.keyCode == KeyCode.Escape)
{
base.editorWindow.Close();
return;
}
EditorGUI.FocusTextInControl("SearchToolbar");
}
}
}
}
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