Initial Commit

Library/PackageCache/com.unity.timeline@1.5.4/Editor/Window/TimelineWindow_Breadcrumbs.cs

@@ -0,0 +1,124 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine;
+#if UNITY_2021_2_OR_NEWER
+using UnityEditor.SceneManagement;
+#else
+using UnityEditor.Experimental.SceneManagement;
+#endif
+using UnityEngine.Playables;
+using UnityEngine.Timeline;
+
+namespace UnityEditor.Timeline
+{
+    partial class TimelineWindow
+    {
+        List<BreadCrumbTitle> m_BreadCrumbLabels = new List<BreadCrumbTitle>(100);
+
+        static TitleMode GetTitleMode(ISequenceState sequence)
+        {
+            var prefabStage = PrefabStageUtility.GetCurrentPrefabStage();
+            // Top level
+            if (sequence.hostClip == null)
+            {
+                if (sequence.director != null && prefabStage != null && prefabStage.IsPartOfPrefabContents(sequence.director.gameObject))
+                    return TitleMode.Prefab;
+                if (sequence.director != null && PrefabUtility.IsPartOfPrefabAsset(sequence.director))
+                    return TitleMode.PrefabOutOfContext;
+                if (sequence.director != null && !sequence.director.isActiveAndEnabled)
+                    return TitleMode.DisabledComponent;
+                if (sequence.director != null)
+                    return TitleMode.GameObject;
+                if (sequence.asset != null)
+                    return TitleMode.Asset;
+            }
+            // Subtimelines only get an error icon
+            else if (sequence.director != null && !sequence.director.isActiveAndEnabled && !PrefabUtility.IsPartOfPrefabAsset(sequence.director))
+                return TitleMode.DisabledComponent;
+
+            return TitleMode.None;
+        }
+
+        void DrawBreadcrumbs()
+        {
+            if (state == null)
+                return;
+            var count = 0;
+            foreach (var sequence in state.GetAllSequences())
+            {
+                var title = new BreadCrumbTitle
+                {
+                    name = DisplayNameHelper.GetDisplayName(sequence),
+                    mode = GetTitleMode(sequence)
+                };
+                if (count >= m_BreadCrumbLabels.Count)
+                    m_BreadCrumbLabels.Add(title);
+                else
+                    m_BreadCrumbLabels[count] = title;
+                count++;
+            }
+
+            if (m_BreadCrumbLabels.Count > count)
+                m_BreadCrumbLabels.RemoveRange(count, m_BreadCrumbLabels.Count - count);
+
+            using (new EditorGUI.DisabledScope(currentMode.headerState.breadCrumb == TimelineModeGUIState.Disabled))
+            {
+                var width = position.width - WindowConstants.playControlsWidth - WindowConstants.cogButtonWidth;
+                BreadcrumbDrawer.Draw(width, m_BreadCrumbLabels, NavigateToBreadcrumbIndex);
+            }
+        }
+
+        void NavigateToBreadcrumbIndex(int index)
+        {
+            state.PopSequencesUntilCount(index + 1);
+        }
+
+        void DrawSequenceSelector()
+        {
+            using (new EditorGUI.DisabledScope(currentMode.headerState.sequenceSelector == TimelineModeGUIState.Disabled))
+            {
+                if (EditorGUILayout.DropdownButton(DirectorStyles.timelineSelectorArrow, FocusType.Passive, DirectorStyles.Instance.sequenceSwitcher, GUILayout.Width(WindowConstants.selectorWidth)))
+                    ShowSequenceSelector();
+            }
+        }
+
+        void ShowSequenceSelector()
+        {
+            var allDirectors = TimelineUtility.GetDirectorsInSceneUsingAsset(null);
+
+            var formatter = new SequenceMenuNameFormater();
+            var namesAndDirectors = new List<ValueTuple<string, PlayableDirector>>();
+            foreach (var d in allDirectors)
+            {
+                if (d.playableAsset is TimelineAsset)
+                {
+                    var text = formatter.Format(DisplayNameHelper.GetDisplayName(d));
+                    namesAndDirectors.Add(new ValueTuple<string, PlayableDirector>(text, d));
+                }
+            }
+
+            var sequenceMenu = new GenericMenu();
+            foreach (var(timelineName, playableDirector) in namesAndDirectors.OrderBy(i => i.Item1))
+            {
+                var isCurrent = state.masterSequence.director == playableDirector;
+                sequenceMenu.AddItem(new GUIContent(timelineName), isCurrent, OnSequenceSelected, playableDirector);
+            }
+
+            if (allDirectors.Length == 0)
+                sequenceMenu.AddDisabledItem(DirectorStyles.noTimelinesInScene);
+
+            sequenceMenu.DropDown(EditorGUILayout.s_LastRect);
+        }
+
+        void OnSequenceSelected(object arg)
+        {
+            var directorToBindTo = (PlayableDirector)arg;
+            if (directorToBindTo)
+            {
+                // don't just select the object, it may already be selected.
+                SetTimeline(directorToBindTo);
+            }
+        }
+    }
+}