protected virtual void OnEnable()
{
// When we open a window (including when we start the Editor), a new GUID is assigned.
// When a window is opened and there is a domain reload, the GUID stays the same.
if (m_GUID == default)
{
m_GUID = SerializableGUID.Generate();
}
var initialState = CreateInitialState();
CommandDispatcher = new CommandDispatcher(initialState);
PluginRepository = new PluginRepository(this);
rootVisualElement.Clear();
rootVisualElement.pickingMode = PickingMode.Ignore;
m_GraphContainer = new VisualElement {
name = "graphContainer"
};
m_GraphView = CreateGraphView();
m_MainToolbar = CreateMainToolbar();
m_ErrorToolbar = CreateErrorToolbar();
m_BlankPage = CreateBlankPage();
m_BlankPage?.CreateUI();
if (m_MainToolbar != null)
{
rootVisualElement.Add(m_MainToolbar);
}
// AddTracingTimeline();
rootVisualElement.Add(m_GraphContainer);
if (m_ErrorToolbar != null)
{
m_GraphView.Add(m_ErrorToolbar);
}
m_GraphContainer.Add(m_GraphView);
rootVisualElement.name = "gtfRoot";
rootVisualElement.AddStylesheet("GraphViewWindow.uss");
// PF FIXME: Use EditorApplication.playModeStateChanged / AssemblyReloadEvents ? Make sure it works on all domain reloads.
// After a domain reload, all loaded objects will get reloaded and their OnEnable() called again
// It looks like all loaded objects are put in a deserialization/OnEnable() queue
// the previous graph's nodes/edges/... might be queued AFTER this window's OnEnable
// so relying on objects to be loaded/initialized is not safe
// hence, we need to defer the loading command
rootVisualElement.schedule.Execute(() =>
{
var lastGraphFilePath = CommandDispatcher.State.WindowState.LastOpenedGraph.GetGraphAssetModelPath();
var lastGraphId = CommandDispatcher.State.WindowState.LastOpenedGraph.AssetLocalId;
if (!string.IsNullOrEmpty(lastGraphFilePath))
{
try
{
CommandDispatcher.Dispatch(new LoadGraphAssetCommand(
lastGraphFilePath,
lastGraphId,
PluginRepository,
CommandDispatcher.State.WindowState.LastOpenedGraph.BoundObject,
LoadGraphAssetCommand.LoadStrategies.KeepHistory));
}
catch (Exception e)
{
Debug.LogError(e);
}
}
}).ExecuteLater(0);
m_GraphProcessingPendingLabel = new Label("Graph Processing Pending")
{
name = "graph-processing-pending-label"
};
if (WithSidePanel)
{
m_SidePanel = CreateModelInspectorView();
}
if (m_SidePanel != null)
{
m_GraphContainer.Add(m_SidePanel);
}
rootVisualElement.RegisterCallback <AttachToPanelEvent>(OnEnterPanel);
rootVisualElement.RegisterCallback <DetachFromPanelEvent>(OnLeavePanel);
// that will be true when the window is restored during the editor startup, so OnEnterPanel won't be called later
if (rootVisualElement.panel != null)
{
OnEnterPanel(null);
}
titleContent = new GUIContent("Graph Tool");
m_LockTracker.lockStateChanged.AddListener(OnLockStateChanged);
m_AutomaticGraphProcessor = new AutomaticGraphProcessor(PluginRepository);
CommandDispatcher.RegisterObserver(m_AutomaticGraphProcessor);
rootVisualElement.RegisterCallback <MouseMoveEvent>(ResetGraphProcessorTimer);
m_GraphProcessingStatusObserver = new GraphProcessingStatusObserver(m_GraphProcessingPendingLabel, m_ErrorToolbar);
CommandDispatcher.RegisterObserver(m_GraphProcessingStatusObserver);
m_SidePanelObserver = new SidePanelObserver(this);
CommandDispatcher.RegisterObserver(m_SidePanelObserver);
}
/// <summary>
/// Callback for the <see cref="AttachToPanelEvent"/>.
/// </summary>
/// <param name="e">The event.</param>
protected void OnEnterPanel(AttachToPanelEvent e)
{
m_Observer ??= new ModelInspectorObserver(this);
m_Dispatcher?.RegisterObserver(m_Observer);
}