PackageStatusBar.cs
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using System.Collections.Generic;
using System.Linq;
using UnityEngine;
using UnityEngine.Experimental.UIElements;
namespace UnityEditor.PackageManager.UI
{
#if !UNITY_2018_3_OR_NEWER
internal class PackageStatusBarFactory : UxmlFactory<PackageStatusBar>
{
protected override PackageStatusBar DoCreate(IUxmlAttributes bag, CreationContext cc)
{
return new PackageStatusBar();
}
}
#endif
internal class PackageStatusBar : VisualElement
{
#if UNITY_2018_3_OR_NEWER
internal new class UxmlFactory : UxmlFactory<PackageStatusBar> {}
#endif
private readonly VisualElement root;
private string LastErrorMessage;
private List<IBaseOperation> operationsInProgress;
private enum StatusType { Normal, Loading, Error };
private StatusType currentStatus;
public PackageStatusBar()
{
root = Resources.GetTemplate("PackageStatusBar.uxml");
Add(root);
MoreAddOptionsButton.clickable.clicked += OnMoreAddOptionsButtonClick;
LastErrorMessage = string.Empty;
operationsInProgress = new List<IBaseOperation>();
SetDefaultMessage();
PackageCollection.Instance.ListSignal.WhenOperation(OnListOrSearchOperation);
PackageCollection.Instance.SearchSignal.WhenOperation(OnListOrSearchOperation);
LoadingText.RegisterCallback<MouseDownEvent>(RefreshAll);
}
private void RefreshAll(MouseDownEvent evt)
{
if (evt.button == 0 && currentStatus != StatusType.Loading)
{
PackageCollection.Instance.FetchListOfflineCache(true);
PackageCollection.Instance.FetchListCache(true);
PackageCollection.Instance.FetchSearchCache(true);
}
}
private void SetDefaultMessage()
{
if (!string.IsNullOrEmpty(PackageCollection.Instance.lastUpdateTime))
SetStatusMessage(StatusType.Normal, "Last update " + PackageCollection.Instance.lastUpdateTime);
else
SetStatusMessage(StatusType.Normal, string.Empty);
}
private void OnListOrSearchOperation(IBaseOperation operation)
{
if (operation == null || operation.IsCompleted)
return;
operationsInProgress.Add(operation);
operation.OnOperationFinalized += () => { OnOperationFinalized(operation); };
operation.OnOperationError += OnOperationError;
SetStatusMessage(StatusType.Loading, "Loading packages...");
}
private void OnOperationFinalized(IBaseOperation operation)
{
operationsInProgress.Remove(operation);
if (operationsInProgress.Any()) return;
var errorMessage = LastErrorMessage;
if (Application.internetReachability == NetworkReachability.NotReachable)
{
EditorApplication.update -= CheckInternetReachability;
EditorApplication.update += CheckInternetReachability;
errorMessage = "You seem to be offline.";
}
if (!string.IsNullOrEmpty(errorMessage))
SetStatusMessage(StatusType.Error, errorMessage);
else
SetDefaultMessage();
}
private void OnOperationError(Error error)
{
LastErrorMessage = "Cannot load packages, see console.";
}
private void CheckInternetReachability()
{
if (Application.internetReachability == NetworkReachability.NotReachable) return;
PackageCollection.Instance.FetchListCache(true);
PackageCollection.Instance.FetchSearchCache(true);
EditorApplication.update -= CheckInternetReachability;
}
private void SetStatusMessage(StatusType status, string message)
{
currentStatus = status;
if (currentStatus == StatusType.Loading)
LoadingSpinner.Start();
else
LoadingSpinner.Stop();
UIUtils.SetElementDisplay(LoadingIcon, currentStatus == StatusType.Error);
if (currentStatus == StatusType.Error)
LoadingText.AddToClassList("icon");
else
LoadingText.RemoveFromClassList("icon");
LoadingText.text = message;
LoadingText.tooltip = currentStatus != StatusType.Loading ? "Click to refresh packages" : string.Empty;
}
private void OnMoreAddOptionsButtonClick()
{
var menu = new GenericMenu();
var addPackageFromDiskItem = new GUIContent("Add package from disk...");
/* // Disable adding from url field before the feature is ready
var addPackageFromUrlItem = new GUIContent("Add package from URL...");
menu.AddItem(addPackageFromUrlItem, false, delegate
{
AddFromUrlField.Show(true);
});
*/
menu.AddItem(addPackageFromDiskItem, false, delegate
{
var path = EditorUtility.OpenFilePanelWithFilters("Select package on disk", "", new[] { "package.json file", "json" });
if (!string.IsNullOrEmpty(path) && !Package.AddRemoveOperationInProgress)
Package.AddFromLocalDisk(path);
});
var menuPosition = MoreAddOptionsButton.LocalToWorld(new Vector2(MoreAddOptionsButton.layout.width, 0));
var menuRect = new Rect(menuPosition, Vector2.zero);
menu.DropDown(menuRect);
}
private PackageAddFromUrlField AddFromUrlField { get { return root.Q<PackageAddFromUrlField>("packageAddFromUrlField"); }}
private VisualElement LoadingSpinnerContainer { get { return root.Q<VisualElement>("loadingSpinnerContainer"); }}
private LoadingSpinner LoadingSpinner { get { return root.Q<LoadingSpinner>("packageSpinner"); }}
private Label LoadingIcon { get { return root.Q<Label>("loadingIcon"); }}
private Label LoadingText { get { return root.Q<Label>("loadingText"); }}
private Button MoreAddOptionsButton { get { return root.Q<Button>("moreAddOptionsButton"); }}
}
}