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using System;
using System.Collections.Generic;
using NUnit.Framework;
using Unity.Mathematics;
using UnityEditor;
using UnityEngine.Experimental.Perception.Randomization.Editor;
using UnityEngine.Experimental.Perception.Randomization.Randomizers;
using UnityEngine.UIElements;
namespace UnityEngine.Experimental.Perception.Randomization.VisualElements
{
class AddRandomizerMenu : VisualElement
{
const string k_DefaultDirectoryText = "Randomizers";
string m_CurrentPath = string.Empty;
string currentPath
{
get => m_CurrentPath;
set
{
m_CurrentPath = value;
DrawDirectoryItems();
}
}
string currentPathName
{
get
{
if (m_CurrentPath == string.Empty)
return k_DefaultDirectoryText;
var pathItems = m_CurrentPath.Split('/');
return pathItems[pathItems.Length - 1];
}
}
string m_SearchString = string.Empty;
string searchString
{
get => m_SearchString;
set
{
m_SearchString = value;
if (m_SearchString == string.Empty)
DrawDirectoryItems();
else
DrawSearchItems();
}
}
string directoryText
{
set
{
m_DirectoryLabelText.text = value;
m_DirectoryChevron.style.visibility = value == k_DefaultDirectoryText
? new StyleEnum<Visibility>(Visibility.Hidden)
: new StyleEnum<Visibility>(Visibility.Visible);
}
}
RandomizerList m_RandomizerList;
VisualElement m_MenuElements;
TextElement m_DirectoryLabelText;
VisualElement m_DirectoryChevron;
Dictionary<string, List<MenuItem>> m_MenuItemsMap = new Dictionary<string, List<MenuItem>>();
Dictionary<string, HashSet<string>> m_MenuDirectories = new Dictionary<string, HashSet<string>>();
List<MenuItem> m_MenuItems = new List<MenuItem>();
class MenuItem
{
public Type randomizerType;
public string itemName;
public MenuItem(Type randomizerType, string itemName)
{
this.randomizerType = randomizerType;
this.itemName = itemName;
}
}
sealed class MenuItemElement : TextElement
{
public MenuItemElement(MenuItem menuItem, AddRandomizerMenu menu)
{
text = menuItem.itemName;
AddToClassList("menu-element");
RegisterCallback<MouseUpEvent>(evt => menu.AddRandomizer(menuItem.randomizerType));
}
}
sealed class MenuDirectoryElement : VisualElement
{
public MenuDirectoryElement(string directory, AddRandomizerMenu menu)
{
AssetDatabase.LoadAssetAtPath<VisualTreeAsset>(
$"{StaticData.uxmlDir}/Randomizer/MenuDirectoryElement.uxml").CloneTree(this);
var pathItems = directory.Split('/');
this.Q<TextElement>("directory").text = pathItems[pathItems.Length - 1];
RegisterCallback<MouseUpEvent>(evt => menu.currentPath = directory);
}
}
public AddRandomizerMenu(VisualElement parentElement, VisualElement button, RandomizerList randomizerList)
{
m_RandomizerList = randomizerList;
var template = AssetDatabase.LoadAssetAtPath<VisualTreeAsset>(
$"{StaticData.uxmlDir}/Randomizer/AddRandomizerMenu.uxml");
template.CloneTree(this);
style.position = new StyleEnum<Position>(Position.Absolute);
var buttonPosition = button.worldBound.position;
var top = math.min(buttonPosition.y, parentElement.worldBound.height - 300);
style.top = top;
style.left = buttonPosition.x;
focusable = true;
RegisterCallback<FocusOutEvent>(evt =>
{
if (evt.relatedTarget == null || ((VisualElement)evt.relatedTarget).FindCommonAncestor(this) != this)
ExitMenu();
});
var directoryLabel = this.Q<VisualElement>("directory-label");
directoryLabel.RegisterCallback<MouseUpEvent>(evt => { AscendDirectory(); });
m_DirectoryLabelText = this.Q<TextElement>("directory-label-text");
m_DirectoryChevron = this.Q<VisualElement>("directory-chevron");
var searchBar = this.Q<TextField>("search-bar");
searchBar.schedule.Execute(() => searchBar.ElementAt(0).Focus());
searchBar.RegisterValueChangedCallback(evt => searchString = evt.newValue);
m_MenuElements = this.Q<VisualElement>("menu-options");
CreateMenuItems();
DrawDirectoryItems();
}
void ExitMenu()
{
parent.Remove(this);
}
void AddRandomizer(Type randomizerType)
{
m_RandomizerList.AddRandomizer(randomizerType);
ExitMenu();
}
void AscendDirectory()
{
var pathItems = m_CurrentPath.Split('/');
var path = pathItems[0];
for (var i = 1; i < pathItems.Length - 1; i++)
path = $"{path}/{pathItems[i]}";
currentPath = path;
}
void DrawDirectoryItems()
{
directoryText = currentPathName;
m_MenuElements.Clear();
if (m_MenuDirectories.ContainsKey(currentPath))
{
var directories = m_MenuDirectories[currentPath];
foreach (var directory in directories)
m_MenuElements.Add(new MenuDirectoryElement(directory, this));
}
if (m_MenuItemsMap.ContainsKey(currentPath))
{
var menuItems = m_MenuItemsMap[currentPath];
foreach (var menuItem in menuItems)
m_MenuElements.Add(new MenuItemElement(menuItem, this));
}
}
void DrawSearchItems()
{
directoryText = k_DefaultDirectoryText;
m_MenuElements.Clear();
var upperSearchString = searchString.ToUpper();
foreach (var menuItem in m_MenuItems)
{
if (menuItem.itemName.ToUpper().Contains(upperSearchString))
m_MenuElements.Add(new MenuItemElement(menuItem, this));
}
}
void CreateMenuItems()
{
var rootList = new List<MenuItem>();
m_MenuItemsMap.Add(string.Empty, rootList);
foreach (var randomizerType in StaticData.randomizerTypes)
{
if (m_RandomizerList.randomizerTypeSet.Contains(randomizerType))
continue;
var menuAttribute = (AddRandomizerMenuAttribute)Attribute.GetCustomAttribute(randomizerType, typeof(AddRandomizerMenuAttribute));
if (menuAttribute != null)
{
var pathItems = menuAttribute.menuPath.Split('/');
if (pathItems.Length > 1)
{
var path = string.Empty;
var itemName = pathItems[pathItems.Length - 1];
for (var i = 0; i < pathItems.Length - 1; i++)
{
var childPath = $"{path}/{pathItems[i]}";
if (i < pathItems.Length - 1)
{
if (!m_MenuDirectories.ContainsKey(path))
m_MenuDirectories.Add(path, new HashSet<string>());
m_MenuDirectories[path].Add(childPath);
}
path = childPath;
}
if (!m_MenuItemsMap.ContainsKey(path))
m_MenuItemsMap.Add(path, new List<MenuItem>());
var item = new MenuItem(randomizerType, itemName);
m_MenuItems.Add(item);
m_MenuItemsMap[path].Add(item);
}
else
{
if (pathItems.Length == 0)
throw new AssertionException("Empty randomizer menu path");
var item = new MenuItem(randomizerType, pathItems[0]);
m_MenuItems.Add(item);
rootList.Add(item);
}
}
else
{
rootList.Add(new MenuItem(randomizerType, randomizerType.Name));
}
}
m_MenuItems.Sort((item1, item2) => item1.itemName.CompareTo(item2.itemName));
}
}
}