685 lines
29 KiB
C#
685 lines
29 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Linq;
|
|
using UnityEditor.IMGUI.Controls;
|
|
using UnityEditor.Timeline;
|
|
using UnityEngine;
|
|
using UnityEngine.Timeline;
|
|
using UnityEngine.Playables;
|
|
using UnityObject = UnityEngine.Object;
|
|
|
|
namespace UnityEditor
|
|
{
|
|
class TimelineDragging : TreeViewDragging
|
|
{
|
|
public delegate bool TypeResolver(IEnumerable<Type> types, Action<Type> onComplete, string format);
|
|
|
|
private static readonly string k_SelectTrackWithBinding = L10n.Tr("Add {0}");
|
|
private static readonly string k_SelectTrackWithClip = L10n.Tr("Add Clip With {0}");
|
|
private static readonly string k_SelectClip = L10n.Tr("Add {0}");
|
|
|
|
|
|
const string k_GenericDragId = "TimelineDragging";
|
|
readonly int kDragSensitivity = 2;
|
|
readonly TimelineAsset m_Timeline;
|
|
readonly TimelineWindow m_Window;
|
|
|
|
class TimelineDragData
|
|
{
|
|
public TimelineDragData(List<TreeViewItem> draggedItems)
|
|
{
|
|
this.draggedItems = draggedItems;
|
|
}
|
|
|
|
public readonly List<TreeViewItem> draggedItems;
|
|
}
|
|
|
|
public TimelineDragging(TreeViewController treeView, TimelineWindow window, TimelineAsset data)
|
|
: base(treeView)
|
|
{
|
|
m_Timeline = data;
|
|
m_Window = window;
|
|
}
|
|
|
|
public override bool CanStartDrag(TreeViewItem targetItem, List<int> draggedItemIDs, Vector2 mouseDownPosition)
|
|
{
|
|
if (Event.current.modifiers != EventModifiers.None)
|
|
return false;
|
|
|
|
// Can only drag when starting in the track header area
|
|
if (mouseDownPosition.x > m_Window.sequenceHeaderRect.xMax)
|
|
return false;
|
|
|
|
var trackBaseGUI = targetItem as TimelineTrackBaseGUI;
|
|
|
|
if (trackBaseGUI == null || trackBaseGUI.track == null)
|
|
return false;
|
|
|
|
if (trackBaseGUI.track.lockedInHierarchy)
|
|
return false;
|
|
|
|
if (Event.current.type == EventType.MouseDrag && Mathf.Abs(Event.current.delta.y) < kDragSensitivity)
|
|
return false;
|
|
|
|
// Make sure dragged items are selected
|
|
// TODO Use similar system than the SceneHierarchyWindow in order to handle selection between treeView and tracks.
|
|
SelectionManager.Clear();
|
|
var draggedTrackGUIs = m_Window.allTracks.Where(t => draggedItemIDs.Contains(t.id));
|
|
foreach (var trackGUI in draggedTrackGUIs)
|
|
SelectionManager.Add(trackGUI.track);
|
|
|
|
return true;
|
|
}
|
|
|
|
public override void StartDrag(TreeViewItem draggedNode, List<int> draggedItemIDs)
|
|
{
|
|
DragAndDrop.PrepareStartDrag();
|
|
var tvItems = SelectionManager.SelectedTrackGUI().Cast<TreeViewItem>().ToList();
|
|
DragAndDrop.SetGenericData(k_GenericDragId, new TimelineDragData(tvItems));
|
|
DragAndDrop.objectReferences = new UnityObject[] {}; // this IS required for dragging to work
|
|
|
|
string title = draggedItemIDs.Count + (draggedItemIDs.Count > 1 ? "s" : ""); // title is only shown on OSX (at the cursor)
|
|
|
|
TimelineGroupGUI groupGui = draggedNode as TimelineGroupGUI;
|
|
if (groupGui != null)
|
|
{
|
|
title = groupGui.displayName;
|
|
}
|
|
DragAndDrop.StartDrag(title);
|
|
}
|
|
|
|
public static bool IsDraggingEvent()
|
|
{
|
|
return Event.current.type == EventType.DragUpdated ||
|
|
Event.current.type == EventType.DragExited ||
|
|
Event.current.type == EventType.DragPerform;
|
|
}
|
|
|
|
public static bool ResolveType(IEnumerable<System.Type> types, Action<Type> onComplete, string formatString)
|
|
{
|
|
if (!types.Any() || onComplete == null)
|
|
return false;
|
|
|
|
if (types.Count() == 1)
|
|
{
|
|
onComplete(types.First());
|
|
return true;
|
|
}
|
|
|
|
var menu = new GenericMenu();
|
|
|
|
var builtInTypes = types.Where(TypeUtility.IsBuiltIn).OrderBy(TypeUtility.GetDisplayName).ToArray();
|
|
var customTypes = types.Where(x => !TypeUtility.IsBuiltIn(x)).OrderBy(TypeUtility.GetDisplayName).ToArray();
|
|
|
|
foreach (var t in builtInTypes)
|
|
{
|
|
menu.AddItem(new GUIContent(string.Format(formatString, TypeUtility.GetDisplayName(t))), false, s => onComplete((System.Type)s), t);
|
|
}
|
|
|
|
if (builtInTypes.Length != 0 && customTypes.Length != 0)
|
|
menu.AddSeparator(string.Empty);
|
|
|
|
foreach (var t in customTypes)
|
|
{
|
|
menu.AddItem(new GUIContent(string.Format(formatString, TypeUtility.GetDisplayName(t))), false, s => onComplete((System.Type)s), t);
|
|
}
|
|
|
|
menu.ShowAsContext();
|
|
return true;
|
|
}
|
|
|
|
public override bool DragElement(TreeViewItem targetItem, Rect targetItemRect, int row)
|
|
{
|
|
if (TimelineWindow.instance.state.editSequence.isReadOnly)
|
|
return false;
|
|
// the drop rect contains the row rect plus additional spacing. The base drag element overlaps 1/2 the height of the next track
|
|
// which interferes with track bindings
|
|
var targetTrack = targetItem as TimelineGroupGUI;
|
|
if (row > 0 && targetTrack != null && !targetTrack.dropRect.Contains(Event.current.mousePosition))
|
|
return false;
|
|
|
|
return base.DragElement(targetItem, targetItemRect, row);
|
|
}
|
|
|
|
TreeViewItem GetNextItem(TreeViewItem item)
|
|
{
|
|
if (item == null)
|
|
return null;
|
|
|
|
if (item.parent == null)
|
|
{
|
|
int row = m_Window.treeView.data.GetRow(item.id);
|
|
var items = m_Window.treeView.data.GetRows();
|
|
if (items.Count > row + 1)
|
|
return items[row + 1];
|
|
return null;
|
|
}
|
|
|
|
var children = item.parent.children;
|
|
if (children == null)
|
|
return null;
|
|
|
|
for (int i = 0; i < children.Count - 1; i++)
|
|
{
|
|
if (children[i] == item)
|
|
return children[i + 1];
|
|
}
|
|
return null;
|
|
}
|
|
|
|
private static TrackAsset GetTrack(TreeViewItem item)
|
|
{
|
|
TimelineTrackBaseGUI baseGui = item as TimelineTrackBaseGUI;
|
|
if (baseGui == null)
|
|
return null;
|
|
return baseGui.track;
|
|
}
|
|
|
|
// The drag and drop may be over an expanded group but might be between tracks
|
|
private void HandleNestedItemGUI(ref TreeViewItem parentItem, ref TreeViewItem targetItem, ref TreeViewItem insertBefore)
|
|
{
|
|
const float kTopPad = 5;
|
|
const float kBottomPad = 5;
|
|
|
|
insertBefore = null;
|
|
|
|
if (!ShouldUseHierarchyDragAndDrop())
|
|
return;
|
|
|
|
var targetTrack = targetItem as TimelineGroupGUI;
|
|
if (targetTrack == null)
|
|
return;
|
|
|
|
var mousePosition = Event.current.mousePosition;
|
|
|
|
var dropBefore = targetTrack.rowRect.yMin + kTopPad > mousePosition.y;
|
|
var dropAfter = !(targetTrack.track is GroupTrack) && (targetTrack.rowRect.yMax - kBottomPad < mousePosition.y);
|
|
|
|
targetTrack.drawInsertionMarkerBefore = dropBefore;
|
|
targetTrack.drawInsertionMarkerAfter = dropAfter;
|
|
|
|
if (dropBefore)
|
|
{
|
|
targetItem = parentItem;
|
|
parentItem = targetItem != null ? targetItem.parent : null;
|
|
insertBefore = targetTrack;
|
|
}
|
|
else if (dropAfter)
|
|
{
|
|
targetItem = parentItem;
|
|
parentItem = targetItem != null ? targetItem.parent : null;
|
|
insertBefore = GetNextItem(targetTrack);
|
|
}
|
|
else if (targetTrack.track is GroupTrack)
|
|
{
|
|
targetTrack.isDropTarget = true;
|
|
}
|
|
}
|
|
|
|
public override DragAndDropVisualMode DoDrag(TreeViewItem parentItem, TreeViewItem targetItem, bool perform, DropPosition dropPos)
|
|
{
|
|
m_Window.isDragging = false;
|
|
|
|
var retMode = DragAndDropVisualMode.None;
|
|
|
|
var trackDragData = DragAndDrop.GetGenericData(k_GenericDragId) as TimelineDragData;
|
|
|
|
if (trackDragData != null)
|
|
{
|
|
retMode = HandleTrackDrop(parentItem, targetItem, perform, dropPos);
|
|
if (retMode == DragAndDropVisualMode.Copy && targetItem != null && Event.current.type == EventType.DragUpdated)
|
|
{
|
|
var targetActor = targetItem as TimelineGroupGUI;
|
|
if (targetActor != null)
|
|
targetActor.isDropTarget = true;
|
|
}
|
|
}
|
|
else if (DragAndDrop.objectReferences.Any())
|
|
{
|
|
var objectsBeingDropped = DragAndDrop.objectReferences.OfType<UnityObject>();
|
|
var director = m_Window.state.editSequence.director;
|
|
|
|
if (ShouldUseHierarchyDragAndDrop())
|
|
{
|
|
// for object drawing
|
|
var originalTarget = targetItem;
|
|
TreeViewItem insertBeforeItem = null;
|
|
HandleNestedItemGUI(ref parentItem, ref targetItem, ref insertBeforeItem);
|
|
var track = GetTrack(targetItem);
|
|
var parent = GetTrack(parentItem);
|
|
var insertBefore = GetTrack(insertBeforeItem);
|
|
retMode = HandleHierarchyPaneDragAndDrop(objectsBeingDropped, track, perform, m_Timeline, director, ResolveType, insertBefore);
|
|
|
|
// fallback to old clip behaviour
|
|
if (retMode == DragAndDropVisualMode.None)
|
|
{
|
|
retMode = HandleClipPaneObjectDragAndDrop(objectsBeingDropped, track, perform, m_Timeline, parent, director, m_Window.state.timeAreaShownRange.x, ResolveType, insertBefore);
|
|
}
|
|
|
|
// if we are rejected, clear any drop markers
|
|
if (retMode == DragAndDropVisualMode.Rejected && targetItem != null)
|
|
{
|
|
ClearInsertionMarkers(originalTarget);
|
|
ClearInsertionMarkers(targetItem);
|
|
ClearInsertionMarkers(parentItem);
|
|
ClearInsertionMarkers(insertBeforeItem);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
var candidateTime = TimelineHelpers.GetCandidateTime(Event.current.mousePosition);
|
|
retMode = HandleClipPaneObjectDragAndDrop(objectsBeingDropped, GetTrack(targetItem), perform, m_Timeline, GetTrack(parentItem), director, candidateTime, ResolveType);
|
|
}
|
|
}
|
|
|
|
m_Window.isDragging = false;
|
|
|
|
return retMode;
|
|
}
|
|
|
|
void ClearInsertionMarkers(TreeViewItem item)
|
|
{
|
|
var trackGUI = item as TimelineTrackBaseGUI;
|
|
if (trackGUI != null)
|
|
{
|
|
trackGUI.drawInsertionMarkerAfter = false;
|
|
trackGUI.drawInsertionMarkerBefore = false;
|
|
trackGUI.isDropTarget = false;
|
|
}
|
|
}
|
|
|
|
bool ShouldUseHierarchyDragAndDrop()
|
|
{
|
|
return m_Window.state.IsEditingAnEmptyTimeline() || m_Window.state.sequencerHeaderWidth > Event.current.mousePosition.x;
|
|
}
|
|
|
|
public static DragAndDropVisualMode HandleHierarchyPaneDragAndDrop(IEnumerable<UnityObject> objectsBeingDropped, TrackAsset targetTrack, bool perform, TimelineAsset timeline, PlayableDirector director, TypeResolver typeResolver, TrackAsset insertBefore = null)
|
|
{
|
|
if (timeline == null)
|
|
return DragAndDropVisualMode.Rejected;
|
|
|
|
// if we are over a target track, defer to track binding system (implemented in TrackGUIs), unless we are a groupTrack
|
|
if (targetTrack != null && (targetTrack as GroupTrack) == null)
|
|
return DragAndDropVisualMode.None;
|
|
|
|
if (targetTrack != null && targetTrack.lockedInHierarchy)
|
|
return DragAndDropVisualMode.Rejected;
|
|
|
|
var tracksWithBinding = objectsBeingDropped.SelectMany(TypeUtility.GetTracksCreatableFromObject).Distinct();
|
|
if (!tracksWithBinding.Any())
|
|
return DragAndDropVisualMode.None;
|
|
|
|
if (perform)
|
|
{
|
|
System.Action<Type> onResolve = trackType =>
|
|
{
|
|
foreach (var obj in objectsBeingDropped)
|
|
{
|
|
if (!obj.IsPrefab() && TypeUtility.IsTrackCreatableFromObject(obj, trackType))
|
|
{
|
|
var newTrack = TimelineHelpers.CreateTrack(timeline, trackType, targetTrack, string.Empty);
|
|
if (insertBefore != null)
|
|
{
|
|
if (targetTrack != null)
|
|
targetTrack.MoveLastTrackBefore(insertBefore);
|
|
else
|
|
timeline.MoveLastTrackBefore(insertBefore);
|
|
}
|
|
|
|
TimelineHelpers.Bind(newTrack, obj, director);
|
|
}
|
|
}
|
|
TimelineEditor.Refresh(RefreshReason.ContentsAddedOrRemoved);
|
|
};
|
|
typeResolver(tracksWithBinding, onResolve, k_SelectTrackWithBinding);
|
|
}
|
|
|
|
return DragAndDropVisualMode.Copy;
|
|
}
|
|
|
|
public static DragAndDropVisualMode HandleClipPaneObjectDragAndDrop(IEnumerable<UnityObject> objectsBeingDropped, TrackAsset targetTrack, bool perform, TimelineAsset timeline, TrackAsset parent, PlayableDirector director, double candidateTime, TypeResolver typeResolver, TrackAsset insertBefore = null)
|
|
{
|
|
if (timeline == null)
|
|
return DragAndDropVisualMode.Rejected;
|
|
|
|
// locked tracks always reject
|
|
if (targetTrack != null && targetTrack.lockedInHierarchy)
|
|
return DragAndDropVisualMode.Rejected;
|
|
|
|
// treat group tracks as having no track
|
|
if (targetTrack is GroupTrack)
|
|
{
|
|
parent = targetTrack;
|
|
targetTrack = null;
|
|
}
|
|
|
|
// Special case for monoscripts, since they describe the type
|
|
if (objectsBeingDropped.Any(o => o is MonoScript))
|
|
return HandleClipPaneMonoScriptDragAndDrop(objectsBeingDropped.OfType<MonoScript>(), targetTrack, perform, timeline, parent, director, candidateTime);
|
|
|
|
// no unity objects, or explicit exceptions
|
|
if (!objectsBeingDropped.Any() || objectsBeingDropped.Any(o => !ValidateObjectDrop(o)))
|
|
return DragAndDropVisualMode.Rejected;
|
|
|
|
// reject scene references if we have no context
|
|
if (director == null && objectsBeingDropped.Any(o => o.IsSceneObject()))
|
|
return DragAndDropVisualMode.Rejected;
|
|
|
|
var validTrackTypes = objectsBeingDropped.SelectMany(o => TypeUtility.GetTrackTypesForObject(o)).Distinct().ToList();
|
|
// special case for playable assets
|
|
if (objectsBeingDropped.Any(o => TypeUtility.IsConcretePlayableAsset(o.GetType())))
|
|
{
|
|
var playableAssets = objectsBeingDropped.OfType<IPlayableAsset>().Where(o => TypeUtility.IsConcretePlayableAsset(o.GetType()));
|
|
return HandleClipPanePlayableAssetDragAndDrop(playableAssets, targetTrack, perform, timeline, parent, director, candidateTime, typeResolver);
|
|
}
|
|
|
|
var markerTypes = objectsBeingDropped.SelectMany(o => TypeUtility.MarkerTypesWithFieldForObject(o)).Distinct();
|
|
|
|
// No tracks or markers support this object
|
|
if (!(markerTypes.Any() || validTrackTypes.Any()))
|
|
{
|
|
return DragAndDropVisualMode.Rejected;
|
|
}
|
|
// track is not compatible with marker
|
|
if (targetTrack != null && markerTypes.Any(o => !TypeUtility.DoesTrackSupportMarkerType(targetTrack, o)))
|
|
{
|
|
// track is not compatible with object
|
|
if (!validTrackTypes.Contains(targetTrack.GetType()))
|
|
return DragAndDropVisualMode.Rejected;
|
|
}
|
|
|
|
// there is no target track, dropping to empty space, or onto a group
|
|
if (perform)
|
|
{
|
|
// choose track and then clip
|
|
if (targetTrack == null)
|
|
{
|
|
var createdTrack = HandleTrackAndItemCreation(objectsBeingDropped, candidateTime, typeResolver, timeline, parent, validTrackTypes, insertBefore);
|
|
if (!createdTrack)
|
|
{
|
|
timeline.CreateMarkerTrack();
|
|
HandleItemCreation(objectsBeingDropped, timeline.markerTrack, candidateTime, typeResolver, true); // menu is always popped if ambiguous choice
|
|
}
|
|
}
|
|
// just choose clip/marker
|
|
else
|
|
{
|
|
HandleItemCreation(objectsBeingDropped, targetTrack, candidateTime, typeResolver, true); // menu is always popped if ambiguous choice
|
|
}
|
|
}
|
|
|
|
return DragAndDropVisualMode.Copy;
|
|
}
|
|
|
|
static bool HandleTrackAndItemCreation(IEnumerable<UnityEngine.Object> objectsBeingDropped, double candidateTime, TypeResolver typeResolver, TimelineAsset timeline, TrackAsset parent, IEnumerable<Type> validTrackTypes, TrackAsset insertBefore = null)
|
|
{
|
|
Action<Type> onResolved = t =>
|
|
{
|
|
var newTrack = TimelineHelpers.CreateTrack(timeline, t, parent, string.Empty);
|
|
if (insertBefore != null)
|
|
{
|
|
if (parent != null)
|
|
parent.MoveLastTrackBefore(insertBefore);
|
|
else
|
|
timeline.MoveLastTrackBefore(insertBefore);
|
|
}
|
|
HandleItemCreation(objectsBeingDropped, newTrack, candidateTime, typeResolver, validTrackTypes.Count() == 1); // menu is popped if ambiguous clip choice and unambiguous track choice
|
|
};
|
|
return typeResolver(validTrackTypes, t => onResolved(t), k_SelectTrackWithClip); // Did it create a track
|
|
}
|
|
|
|
static void HandleItemCreation(IEnumerable<UnityEngine.Object> objectsBeingDropped, TrackAsset targetTrack, double candidateTime, TypeResolver typeResolver, bool allowMenu)
|
|
{
|
|
var assetTypes = objectsBeingDropped.Select(o =>
|
|
TypeUtility.GetAssetTypesForObject(targetTrack.GetType(), o)
|
|
.Union(TypeUtility.MarkerTypesWithFieldForObject(o))).ToList();
|
|
Action<Type> onCreateItem = assetType =>
|
|
{
|
|
if (typeof(PlayableAsset).IsAssignableFrom(assetType))
|
|
{
|
|
TimelineHelpers.CreateClipsFromObjects(assetType, targetTrack, candidateTime,
|
|
objectsBeingDropped);
|
|
}
|
|
else
|
|
{
|
|
TimelineHelpers.CreateMarkersFromObjects(assetType, targetTrack, candidateTime, objectsBeingDropped);
|
|
}
|
|
};
|
|
|
|
var flatAssetTypes = assetTypes.SelectMany(x => x).Distinct();
|
|
// If there is a one to one mapping between assets and timeline types, no need to go through the type resolution, not ambiguous.
|
|
if (assetTypes.All(x => x.Count() <= 1))
|
|
{
|
|
foreach (var type in flatAssetTypes)
|
|
{
|
|
onCreateItem(type);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (!allowMenu) // If we already popped a menu, and are presented with an ambiguous choice, take the first entry
|
|
{
|
|
flatAssetTypes = new[] {flatAssetTypes.First()};
|
|
}
|
|
|
|
typeResolver(flatAssetTypes, onCreateItem, k_SelectClip);
|
|
}
|
|
}
|
|
|
|
/// Handles drag and drop of a mono script.
|
|
public static DragAndDropVisualMode HandleClipPaneMonoScriptDragAndDrop(IEnumerable<MonoScript> scriptsBeingDropped, TrackAsset targetTrack, bool perform, TimelineAsset timeline, TrackAsset parent, PlayableDirector director, double candidateTime)
|
|
{
|
|
var playableAssetTypes = scriptsBeingDropped.Select(s => s.GetClass()).Where(TypeUtility.IsConcretePlayableAsset).Distinct();
|
|
if (!playableAssetTypes.Any())
|
|
return DragAndDropVisualMode.Rejected;
|
|
|
|
var targetTrackType = typeof(PlayableTrack);
|
|
if (targetTrack != null)
|
|
targetTrackType = targetTrack.GetType();
|
|
|
|
var trackAssetsTypes = TypeUtility.GetPlayableAssetsHandledByTrack(targetTrackType);
|
|
var supportedTypes = trackAssetsTypes.Intersect(playableAssetTypes);
|
|
if (!supportedTypes.Any())
|
|
return DragAndDropVisualMode.Rejected;
|
|
|
|
if (perform)
|
|
{
|
|
if (targetTrack == null)
|
|
targetTrack = TimelineHelpers.CreateTrack(timeline, targetTrackType, parent, string.Empty);
|
|
TimelineHelpers.CreateClipsFromTypes(supportedTypes, targetTrack, candidateTime);
|
|
}
|
|
|
|
return DragAndDropVisualMode.Copy;
|
|
}
|
|
|
|
public static DragAndDropVisualMode HandleClipPanePlayableAssetDragAndDrop(IEnumerable<IPlayableAsset> assetsBeingDropped, TrackAsset targetTrack, bool perform, TimelineAsset timeline, TrackAsset parent, PlayableDirector director, double candidateTime, TypeResolver typeResolver)
|
|
{
|
|
// get the list of supported track types
|
|
var assetTypes = assetsBeingDropped.Select(x => x.GetType()).Distinct();
|
|
IEnumerable<Type> supportedTypes = null;
|
|
if (targetTrack == null)
|
|
{
|
|
supportedTypes = TypeUtility.AllTrackTypes().Where(t => TypeUtility.GetPlayableAssetsHandledByTrack(t).Intersect(assetTypes).Any()).ToList();
|
|
}
|
|
else
|
|
{
|
|
supportedTypes = Enumerable.Empty<Type>();
|
|
var trackAssetTypes = TypeUtility.GetPlayableAssetsHandledByTrack(targetTrack.GetType());
|
|
if (trackAssetTypes.Intersect(assetTypes).Any())
|
|
supportedTypes = new[] {targetTrack.GetType()};
|
|
}
|
|
|
|
if (!supportedTypes.Any())
|
|
return DragAndDropVisualMode.Rejected;
|
|
|
|
if (perform)
|
|
{
|
|
Action<Type> onResolved = (t) =>
|
|
{
|
|
if (targetTrack == null)
|
|
targetTrack = TimelineHelpers.CreateTrack(timeline, t, parent, string.Empty);
|
|
|
|
var clipTypes = TypeUtility.GetPlayableAssetsHandledByTrack(targetTrack.GetType());
|
|
foreach (var asset in assetsBeingDropped)
|
|
{
|
|
if (clipTypes.Contains(asset.GetType()))
|
|
TimelineHelpers.CreateClipOnTrackFromPlayableAsset(asset, targetTrack, candidateTime);
|
|
}
|
|
};
|
|
|
|
typeResolver(supportedTypes, onResolved, k_SelectTrackWithClip);
|
|
}
|
|
|
|
|
|
return DragAndDropVisualMode.Copy;
|
|
}
|
|
|
|
static bool ValidateObjectDrop(UnityObject obj)
|
|
{
|
|
// legacy animation clips are not supported at all
|
|
AnimationClip clip = obj as AnimationClip;
|
|
if (clip != null && clip.legacy)
|
|
return false;
|
|
|
|
return !(obj is TimelineAsset);
|
|
}
|
|
|
|
public DragAndDropVisualMode HandleTrackDrop(TreeViewItem parentItem, TreeViewItem targetItem, bool perform, DropPosition dropPos)
|
|
{
|
|
((TimelineTreeView)m_Window.treeView.gui).showInsertionMarker = false;
|
|
var trackDragData = (TimelineDragData)DragAndDrop.GetGenericData(k_GenericDragId);
|
|
bool validDrag = ValidDrag(targetItem, trackDragData.draggedItems);
|
|
if (!validDrag)
|
|
return DragAndDropVisualMode.None;
|
|
|
|
|
|
var draggedTracks = trackDragData.draggedItems.OfType<TimelineGroupGUI>().Select(x => x.track).ToList();
|
|
if (draggedTracks.Count == 0)
|
|
return DragAndDropVisualMode.None;
|
|
|
|
if (parentItem != null)
|
|
{
|
|
var parentActor = parentItem as TimelineGroupGUI;
|
|
if (parentActor != null && parentActor.track != null)
|
|
{
|
|
if (parentActor.track.lockedInHierarchy)
|
|
return DragAndDropVisualMode.Rejected;
|
|
|
|
if (draggedTracks.Any(x => !TimelineCreateUtilities.ValidateParentTrack(parentActor.track, x.GetType())))
|
|
return DragAndDropVisualMode.Rejected;
|
|
}
|
|
}
|
|
|
|
var insertAfterItem = targetItem as TimelineGroupGUI;
|
|
if (insertAfterItem != null && insertAfterItem.track != null)
|
|
{
|
|
((TimelineTreeView)m_Window.treeView.gui).showInsertionMarker = true;
|
|
}
|
|
|
|
if (dropPos == DropPosition.Upon)
|
|
{
|
|
var groupGUI = targetItem as TimelineGroupGUI;
|
|
if (groupGUI != null)
|
|
groupGUI.isDropTarget = true;
|
|
}
|
|
|
|
if (perform)
|
|
{
|
|
PlayableAsset targetParent = m_Timeline;
|
|
var parentActor = parentItem as TimelineGroupGUI;
|
|
|
|
if (parentActor != null && parentActor.track != null)
|
|
targetParent = parentActor.track;
|
|
|
|
TrackAsset siblingTrack = insertAfterItem != null ? insertAfterItem.track : null;
|
|
|
|
// where the user drops after the last track, make sure to place it after all the tracks
|
|
if (targetParent == m_Timeline && dropPos == DropPosition.Below && siblingTrack == null)
|
|
{
|
|
siblingTrack = m_Timeline.GetRootTracks().LastOrDefault(x => !draggedTracks.Contains(x));
|
|
}
|
|
|
|
if (TrackExtensions.ReparentTracks(TrackExtensions.FilterTracks(draggedTracks).ToList(), targetParent, siblingTrack, dropPos == DropPosition.Above))
|
|
{
|
|
m_Window.state.Refresh();
|
|
}
|
|
}
|
|
|
|
return DragAndDropVisualMode.Move;
|
|
}
|
|
|
|
public static void HandleBindingDragAndDrop(TrackAsset dropTarget, Type requiredBindingType)
|
|
{
|
|
var objectBeingDragged = DragAndDrop.objectReferences[0];
|
|
|
|
var action = BindingUtility.GetBindingAction(requiredBindingType, objectBeingDragged);
|
|
DragAndDrop.visualMode = action == BindingAction.DoNotBind
|
|
? DragAndDropVisualMode.Rejected
|
|
: DragAndDropVisualMode.Link;
|
|
|
|
if (action == BindingAction.DoNotBind || Event.current.type != EventType.DragPerform)
|
|
return;
|
|
|
|
var director = TimelineEditor.inspectedDirector;
|
|
|
|
switch (action)
|
|
{
|
|
case BindingAction.BindDirectly:
|
|
{
|
|
BindingUtility.Bind(director, dropTarget, objectBeingDragged);
|
|
break;
|
|
}
|
|
case BindingAction.BindToExistingComponent:
|
|
{
|
|
var gameObjectBeingDragged = objectBeingDragged as GameObject;
|
|
Debug.Assert(gameObjectBeingDragged != null, "The object being dragged was detected as being a GameObject");
|
|
|
|
BindingUtility.Bind(director, dropTarget, gameObjectBeingDragged.GetComponent(requiredBindingType));
|
|
break;
|
|
}
|
|
case BindingAction.BindToMissingComponent:
|
|
{
|
|
var gameObjectBeingDragged = objectBeingDragged as GameObject;
|
|
Debug.Assert(gameObjectBeingDragged != null, "The object being dragged was detected as being a GameObject");
|
|
|
|
var typeNameOfComponent = requiredBindingType.ToString().Split(".".ToCharArray()).Last();
|
|
var bindMenu = new GenericMenu();
|
|
|
|
bindMenu.AddItem(
|
|
EditorGUIUtility.TextContent("Create " + typeNameOfComponent + " on " + gameObjectBeingDragged.name),
|
|
false,
|
|
nullParam => BindingUtility.Bind(director, dropTarget, Undo.AddComponent(gameObjectBeingDragged, requiredBindingType)),
|
|
null);
|
|
|
|
bindMenu.AddSeparator("");
|
|
bindMenu.AddItem(EditorGUIUtility.TrTextContent("Cancel"), false, userData => {}, null);
|
|
bindMenu.ShowAsContext();
|
|
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
//no-op
|
|
return;
|
|
}
|
|
}
|
|
|
|
DragAndDrop.AcceptDrag();
|
|
}
|
|
|
|
static bool ValidDrag(TreeViewItem target, List<TreeViewItem> draggedItems)
|
|
{
|
|
TreeViewItem currentParent = target;
|
|
while (currentParent != null)
|
|
{
|
|
if (draggedItems.Contains(currentParent))
|
|
return false;
|
|
currentParent = currentParent.parent;
|
|
}
|
|
|
|
// dragging into the sequence itself
|
|
return true;
|
|
}
|
|
}
|
|
}
|