// Unity C# reference source

// Copyright (c) Unity Technologies. For terms of use, see

// https://unity3d.com/legal/licenses/Unity_Reference_Only_License

using System.Linq;

using UnityEngine;

namespace UnityEditor.Presets

{

internal class PresetContextMenu : PresetSelectorReceiver

{

Object[] m_Targets;

Preset[] m_Presets;

internal static void CreateAndShow(Object[] targets)

{

var instance = CreateInstance<PresetContextMenu>();

instance.m_Targets = targets;

instance.m_Presets = targets.Select(t => new Preset(t)).ToArray();

PresetSelector.ShowSelector(targets[0], null, true, instance);

}

void RevertValues()

{

var targets = m_Targets.Where(t => t != null).ToArray();

if (targets.Length == 0)

return;

Undo.RecordObjects(targets, "Cancel Preset");

for (int i = 0; i < targets.Length; i++)

{

m_Presets[i].ApplyTo(targets[i]);

}

}

public override void OnSelectionChanged(Preset selection)

{

if (selection == null)

{

RevertValues();

}

else

{

ApplyValues(selection);

}

InspectorWindow.RepaintAllInspectors();

SettingsService.RepaintAllSettingsWindow();

}

void ApplyValues(Preset selection)

{

var targets = m_Targets.Where(t => t != null).ToArray();

if (targets.Length == 0)

return;

Undo.RecordObjects(targets, "Apply Preset " + selection.name);

foreach (var target in targets)

{

selection.ApplyTo(target);

}

}

public override void OnSelectionClosed(Preset selection)

{

OnSelectionChanged(selection);

DestroyImmediate(this);

}

}

}