Rasagar/Library/PackageCache/com.unity.timeline/Editor/Window/TimelineWindow_EditorCallbacks.cs

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2024-08-26 13:07:20 -07:00
using System;
using System.Collections.Generic;
using System.Linq;
using UnityEditor.SceneManagement;
using UnityEditor.ShortcutManagement;
using UnityEditor.Timeline.Actions;
using UnityEngine;
using UnityEngine.Animations;
using UnityEngine.Playables;
using UnityEngine.SceneManagement;
using UnityEngine.Timeline;
namespace UnityEditor.Timeline
{
partial class TimelineWindow
{
private int m_ComponentAddedFrame;
void OnSelectionChangedInactive()
{
// Case 946942 -- when selection changes and the window is open but hidden, timeline
// needs to update selection immediately so preview mode is correctly released
// Case 1123119 -- except when recording
if (!hasFocus)
{
RefreshSelection(!locked && state != null && !state.recording);
}
}
void InitializeEditorCallbacks()
{
Undo.postprocessModifications += PostprocessAnimationRecordingModifications;
Undo.postprocessModifications += ProcessAssetModifications;
Undo.undoRedoPerformed += OnUndoRedo;
EditorApplication.playModeStateChanged += OnPlayModeStateChanged;
AnimationUtility.onCurveWasModified += OnCurveModified;
EditorApplication.editorApplicationQuit += OnEditorQuit;
Selection.selectionChanged += OnSelectionChangedInactive;
EditorSceneManager.sceneSaved += OnSceneSaved;
ObjectFactory.componentWasAdded += OnComponentWasAdded;
PrefabUtility.prefabInstanceUpdated += OnPrefabApplied;
EditorApplication.pauseStateChanged += OnPlayModePause;
EditorApplication.globalEventHandler += GlobalEventHandler;
#if TIMELINE_FRAMEACCURATE
TimelinePlayable.playableLooped += OnPlayableLooped;
#endif
}
// This callback is needed because the Animation window registers "Animation/Key Selected" as a global hotkey
// and we want to also react to the key.
void GlobalEventHandler()
{
if (instance == null || !state.previewMode)
{
return;
}
var keyBinding = ShortcutManager.instance.GetShortcutBinding("Animation/Key Selected");
if (keyBinding.Equals(ShortcutBinding.empty))
{
return;
}
var evtCombo = KeyCombination.FromKeyboardInput(Event.current);
if (keyBinding.keyCombinationSequence.Contains(evtCombo))
{
Invoker.InvokeWithSelected<KeyAllAnimated>();
}
}
void OnEditorQuit()
{
TimelineWindowViewPrefs.SaveAll();
}
void RemoveEditorCallbacks()
{
EditorApplication.playModeStateChanged -= OnPlayModeStateChanged;
Undo.undoRedoPerformed -= OnUndoRedo;
Undo.postprocessModifications -= PostprocessAnimationRecordingModifications;
Undo.postprocessModifications -= ProcessAssetModifications;
AnimationUtility.onCurveWasModified -= OnCurveModified;
EditorApplication.editorApplicationQuit -= OnEditorQuit;
Selection.selectionChanged -= OnSelectionChangedInactive;
EditorSceneManager.sceneSaved -= OnSceneSaved;
ObjectFactory.componentWasAdded -= OnComponentWasAdded;
PrefabUtility.prefabInstanceUpdated -= OnPrefabApplied;
EditorApplication.pauseStateChanged -= OnPlayModePause;
EditorApplication.globalEventHandler -= GlobalEventHandler;
#if TIMELINE_FRAMEACCURATE
TimelinePlayable.playableLooped -= OnPlayableLooped;
#endif
}
void OnPlayModePause(PauseState state)
{
// in PlayMode, if the timeline is playing, a constant repaint cycle occurs. Pausing the editor
// breaks the cycle, so this will restart it
Repaint();
}
// Called when a prefab change is applied to the scene.
// Redraw so control tracks that use prefabs can show changes
void OnPrefabApplied(GameObject go)
{
if (!state.previewMode)
return;
// if we added a component this frame, then rebuild, otherwise just let
// the individual playable handle the prefab application
if (Time.frameCount == m_ComponentAddedFrame)
TimelineEditor.Refresh(RefreshReason.ContentsModified);
else
TimelineEditor.Refresh(RefreshReason.SceneNeedsUpdate);
}
// When the scene is save the director time will get reset.
void OnSceneSaved(Scene scene)
{
if (state != null)
state.OnSceneSaved();
}
void OnCurveModified(AnimationClip clip, EditorCurveBinding binding, AnimationUtility.CurveModifiedType type)
{
InspectorWindow.RepaintAllInspectors();
if (state == null)
return;
//Force refresh of curve when modified by another editor.
Repaint();
if (state.previewMode == false)
return;
bool hasPlayable = m_PlayableLookup.GetPlayableFromAnimClip(clip, out Playable playable);
// mark the timeline clip as dirty
TimelineClip timelineClip = m_PlayableLookup.GetTimelineClipFromCurves(clip);
if (timelineClip != null)
timelineClip.MarkDirty();
if (type == AnimationUtility.CurveModifiedType.CurveModified)
{
if (hasPlayable)
{
playable.SetAnimatedProperties(clip);
}
// updates the duration of the graph without rebuilding
AnimationUtility.SyncEditorCurves(clip); // deleted keys are not synced when this is sent out, so duration could be incorrect
state.UpdateRootPlayableDuration(state.editSequence.duration);
bool isRecording = TimelineRecording.IsRecordingAnimationTrack;
PlayableDirector masterDirector = TimelineEditor.masterDirector;
bool isGraphValid = masterDirector != null && masterDirector.playableGraph.IsValid();
// don't evaluate if this is caused by recording on an animation track, the extra evaluation can cause hiccups
// Prevent graphs to be resurrected by a changed clip.
if (!isRecording && isGraphValid)
state.Evaluate();
}
else if (EditorUtility.IsDirty(clip)) // curve added/removed, or clip added/removed
{
state.rebuildGraph |= timelineClip != null || hasPlayable;
}
}
void OnPlayModeStateChanged(PlayModeStateChange playModeState)
{
// case 923506 - make sure we save view data before switching modes
if (playModeState == PlayModeStateChange.ExitingEditMode ||
playModeState == PlayModeStateChange.ExitingPlayMode)
TimelineWindowViewPrefs.SaveAll();
bool isPlaymodeAboutToChange = playModeState == PlayModeStateChange.ExitingEditMode || playModeState == PlayModeStateChange.ExitingPlayMode;
// Important to stop the graph on any director so temporary objects are properly cleaned up
if (isPlaymodeAboutToChange && state != null)
state.Stop();
}
UndoPropertyModification[] PostprocessAnimationRecordingModifications(UndoPropertyModification[] modifications)
{
DirtyModifiedObjects(modifications);
var remaining = TimelineRecording.ProcessUndoModification(modifications, state);
// if we've changed, we need to repaint the sequence window to show clip length changes
if (remaining != modifications)
{
// only update if us or the sequencer window has focus
// Prevents color pickers and other dialogs from being wrongly dismissed
bool repaint = (focusedWindow == null) ||
(focusedWindow is InspectorWindow) ||
(focusedWindow is TimelineWindow);
if (repaint)
Repaint();
}
return remaining;
}
void DirtyModifiedObjects(UndoPropertyModification[] modifications)
{
foreach (var m in modifications)
{
if (m.currentValue == null || m.currentValue.target == null)
continue;
var track = m.currentValue.target as TrackAsset;
var playableAsset = m.currentValue.target as PlayableAsset;
var editorClip = m.currentValue.target as EditorClip;
if (track != null)
{
track.MarkDirtyTrackAndClips();
}
else if (playableAsset != null)
{
var clip = TimelineRecording.FindClipWithAsset(state.editSequence.asset, playableAsset);
if (clip != null)
{
clip.MarkDirty();
}
}
else if (editorClip != null && editorClip.clip != null)
{
editorClip.clip.MarkDirty();
}
}
}
UndoPropertyModification[] ProcessAssetModifications(UndoPropertyModification[] modifications)
{
bool rebuildGraph = false;
for (int i = 0; i < modifications.Length && !rebuildGraph; i++)
{
var mod = modifications[i];
if (mod.currentValue != null && mod.currentValue.target is IMarker currentMarker)
{
if (currentMarker.parent != null && currentMarker.parent.timelineAsset == state.editSequence.asset)
{
if (mod.currentValue.target is INotification)
TimelineEditor.Refresh(RefreshReason.ContentsModified);
else
TimelineEditor.Refresh(RefreshReason.WindowNeedsRedraw);
}
}
else if (mod.previousValue != null && mod.previousValue.target is AvatarMask) // check if an Avatar Mask has been modified
{
rebuildGraph = state.editSequence.asset != null &&
state.editSequence.asset.flattenedTracks
.OfType<UnityEngine.Timeline.AnimationTrack>()
.Any(x => mod.previousValue.target == x.avatarMask);
}
}
if (rebuildGraph)
{
state.rebuildGraph = true;
Repaint();
}
return modifications;
}
void OnUndoRedo()
{
var undos = new List<string>();
var redos = new List<string>();
Undo.GetRecords(undos, redos);
var rebuildAll = redos.Any(x => x.StartsWith("Timeline ")) || undos.Any(x => x.StartsWith("Timeline"));
var evalNow = redos.Any(x => x.Contains("Edit Curve")) || undos.Any(x => x.Contains("Edit Curve"));
if (rebuildAll || evalNow)
{
ValidateSelection();
if (state != null)
{
if (evalNow) // when curves change, the new values need to be set in the transform before the inspector handles the undo
state.EvaluateImmediate();
if (rebuildAll)
state.Refresh();
}
Repaint();
}
}
static void ValidateSelection()
{
//get all the clips in the selection
var selectedClips = Selection.GetFiltered<EditorClip>(SelectionMode.Unfiltered).Select(x => x.clip);
foreach (var selectedClip in selectedClips)
{
var parent = selectedClip.GetParentTrack();
if (selectedClip.GetParentTrack() != null)
{
if (!parent.clips.Contains(selectedClip))
{
SelectionManager.Remove(selectedClip);
}
}
}
}
void OnComponentWasAdded(Component c)
{
m_ComponentAddedFrame = Time.frameCount;
var go = c.gameObject;
foreach (var seq in state.GetAllSequences())
{
if (seq.director == null || seq.asset == null)
{
return;
}
var rebind = seq.asset.GetOutputTracks().Any(track => seq.director.GetGenericBinding(track) == go);
// Either the playable director has a binding for the GameObject or it is a sibling of the director.
// The second case is needed since we have timeline top level markerTracks that do not have a binding, but
// are still "targeting" the playable director
if (rebind || seq.director.gameObject == go)
{
seq.director.RebindPlayableGraphOutputs();
}
}
}
#if TIMELINE_FRAMEACCURATE
void OnPlayableLooped(Playable timelinePlayable)
{
if (state == null || !state.playing || state.masterSequence == null || state.masterSequence.director == null
|| !state.masterSequence.director.playableGraph.IsValid())
return;
var masterPlayable = state.masterSequence.director.playableGraph.GetRootPlayable(0);
if (!masterPlayable.Equals(Playable.Null)
&& masterPlayable.Equals(timelinePlayable)
&& timelinePlayable.GetGraph().IsMatchFrameRateEnabled())
timelinePlayable.SetTime(0);
}
#endif
}
}