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84 lines
2.3 KiB
84 lines
2.3 KiB
11 months ago
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using System.Text;
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using System.Collections;
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using System.Collections.Generic;
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using System.Runtime.InteropServices;
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using UnityEngine;
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using UnityEngine.UI;
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using UnityEngine.EventSystems;
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using SFB;
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using UnityEngine.Events;
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using UniRx;
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using System;
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using UnityEngine.Networking;
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[RequireComponent(typeof(Button))]
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public class OpenImage : MonoBehaviour, IPointerDownHandler
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{
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public Image Output;
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public UnityAction<Texture2D> OnLoadTextureFinished;
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public bool PreserveAspect = true;
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//public ViewOriginalImage OriginalImage;
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#if UNITY_WEBGL && !UNITY_EDITOR
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//
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// WebGL
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//
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[DllImport("__Internal")]
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private static extern void UploadFile(string gameObjectName, string methodName, string filter, bool multiple);
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public void OnPointerDown(PointerEventData eventData) {
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if(eventData.button== PointerEventData.InputButton.Left)
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{
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UploadFile(gameObject.name, "OnFileUpload", ".png, .jpg,.bmp", false);
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}
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}
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// Called from browser
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public void OnFileUpload(string url) {
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StartCoroutine(OutputRoutine(url));
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}
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#else
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public void OnPointerDown(PointerEventData eventData)
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{
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}
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// Start is called before the first frame update
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void Start()
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{
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GetComponent<Button>().OnClickAsObservable()
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.Subscribe(_ => OnClick());
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}
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private void OnClick()
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{
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var extensions = new[] {
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new ExtensionFilter("Image Files", "png", "jpg", "jpeg" ),
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};
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var paths = StandaloneFileBrowser.OpenFilePanel("Title", "", extensions, false);
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if (paths.Length > 0)
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{
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StartCoroutine(OutputRoutine(new Uri(paths[0]).AbsoluteUri));
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}
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}
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#endif
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private IEnumerator OutputRoutine(string url)
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{
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UnityWebRequest uwr = new UnityWebRequest(url);
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DownloadHandlerTexture downloadTexture = new DownloadHandlerTexture(true);
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uwr.downloadHandler = downloadTexture;
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yield return uwr.SendWebRequest();
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if (!(uwr.isNetworkError || uwr.isHttpError))
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{
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var loader = downloadTexture.texture;
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Output.sprite = Sprite.Create(loader, new Rect(0, 0, loader.width, loader.height), Vector2.zero);
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Output.preserveAspect = PreserveAspect;
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OnLoadTextureFinished?.Invoke(loader);
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}
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}
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}
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