Update: Drag Drop in the editor

[EloiStree]

Hello, I read that you disable 'drag and drop' in the editor because of bugs and stuffs.
But to test out, it is not practical at all.

So I look for a way to drag and drop in the UnityEditor doc to propose alternative code when I am in the editor.

Code is a quick and dirty fix to make test. But you, someone that want to use your tool and reading this, can do it like this:

using System.Collections.Generic;
using UnityEngine;
using System.Linq;
using B83Win32;
using UnityEngine.Events;

#if  UNITY_EDITOR_WIN
using UnityEditor;
#endif

public class FileDragAndDrop : MonoBehaviour
{
    public UnityEvent m_onDropDetected;
    public string[] m_filesDropped;
    

    private string[] m_currentPathsHold;

    public void Update()
    {

#if  UNITY_EDITOR_WIN
        string[] paths = DragAndDrop.paths;
         
        if (paths!=null && m_currentPathsHold!=null  &&  paths.Length == 0 && m_currentPathsHold.Length > 0) {

            m_filesDropped = m_currentPathsHold;
            m_onDropDetected.Invoke();
        }
        m_currentPathsHold= paths;
#endif
    }

    void Awake ()
    {
        UnityDragAndDropHook.InstallHook();
        UnityDragAndDropHook.OnDroppedFiles += OnFiles;
    }
    void OnDestroy()
    {
        UnityDragAndDropHook.UninstallHook();
    }

    void OnFiles(List<string> aFiles, POINT aPos)
    {
        m_filesDropped = aFiles.ToArray();
        m_onDropDetected.Invoke();

    }

    
}

In hope to help.

(PS: Thanks for you code, it is very useful)

[KZkici]

Thanks that certainly saves a lot of time, tested and it works.

[gabrimoHG]

Hi, thanks for the code, but I failed to integrate it with the image example from the author. My code doesn't have array strings, but I did tried exactly like your code too and the result was the same. The file directory is assigned to the "m_filesDropped" variable on inspector, but nothing else happens in my case. I don't understand how to call the OnFiles method (OnFileReceived in my code) will happen.. Is there anything which should be implied by the user?

[Hoper-Q]

Hello, I read that you disable 'drag and drop' in the editor because of bugs and stuffs. But to test out, it is not practical at all.

So I look for a way to drag and drop in the UnityEditor doc to propose alternative code when I am in the editor.

Code is a quick and dirty fix to make test. But you, someone that want to use your tool and reading this, can do it like this:

using System.Collections.Generic;
using UnityEngine;
using System.Linq;
using B83Win32;
using UnityEngine.Events;

#if  UNITY_EDITOR_WIN
using UnityEditor;
#endif

public class FileDragAndDrop : MonoBehaviour
{
    public UnityEvent m_onDropDetected;
    public string[] m_filesDropped;
    

    private string[] m_currentPathsHold;

    public void Update()
    {

#if  UNITY_EDITOR_WIN
        string[] paths = DragAndDrop.paths;
         
        if (paths!=null && m_currentPathsHold!=null  &&  paths.Length == 0 && m_currentPathsHold.Length > 0) {

            m_filesDropped = m_currentPathsHold;
            m_onDropDetected.Invoke();
        }
        m_currentPathsHold= paths;
#endif
    }

    void Awake ()
    {
        UnityDragAndDropHook.InstallHook();
        UnityDragAndDropHook.OnDroppedFiles += OnFiles;
    }
    void OnDestroy()
    {
        UnityDragAndDropHook.UninstallHook();
    }

    void OnFiles(List<string> aFiles, POINT aPos)
    {
        m_filesDropped = aFiles.ToArray();
        m_onDropDetected.Invoke();

    }

    
}

In hope to help.

(PS: Thanks for you code, it is very useful)

Hollow I think there is question. you use the UnityEditor API to get the path, Haven`t to used this tool. How can you know the tool can run.