1 files changed, 199 insertions, 0 deletions
diff --git a/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Manipulators/EditModeInputHandler.cs b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Manipulators/EditModeInputHandler.cs
new file mode 100644
index 0000000..6a204d9
--- /dev/null
+++ b/Library/PackageCache/com.unity.timeline@1.2.13/Editor/Manipulators/EditModeInputHandler.cs
@@ -0,0 +1,199 @@
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine;
+
+namespace UnityEditor.Timeline
+{
+    class EditModeInputHandler
+    {
+        readonly MoveInputHandler m_MoveHandler;
+        readonly TrimInputHandler m_TrimHandler;
+
+        public EditModeInputHandler()
+        {
+            m_MoveHandler = new MoveInputHandler();
+            m_TrimHandler = new TrimInputHandler();
+        }
+
+        public void ProcessMove(InputEvent action, double value)
+        {
+            if (TimelineWindow.instance != null && TimelineWindow.instance.state != null)
+                ProcessInputAction(m_MoveHandler, action, value, TimelineWindow.instance.state);
+        }
+
+        public void ProcessTrim(InputEvent action, double value, bool stretch)
+        {
+            if (TimelineWindow.instance != null && TimelineWindow.instance.state != null)
+            {
+                m_TrimHandler.stretch = stretch;
+                ProcessInputAction(m_TrimHandler, action, value, TimelineWindow.instance.state);
+            }
+        }
+
+        public void SetValueForEdge(IEnumerable<ITimelineItem> items, AttractedEdge edge, double value)
+        {
+            if (TimelineWindow.instance != null && TimelineWindow.instance.state != null)
+                MoveInputHandler.SetValueForEdge(items, edge, value, TimelineWindow.instance.state);
+        }
+
+        public void OnGUI(WindowState state, Event evt)
+        {
+            if (TimelineWindow.instance != null && TimelineWindow.instance.state != null)
+            {
+                m_MoveHandler.OnGUI(evt);
+                m_TrimHandler.OnGUI(state);
+            }
+        }
+
+        static void ProcessInputAction(IInputHandler handler, InputEvent action, double value, WindowState state)
+        {
+            var items = SelectionManager.SelectedItems();
+            switch (action)
+            {
+                case InputEvent.None:
+                    return;
+                case InputEvent.DragEnter:
+                    handler.OnEnterDrag(items, state);
+                    break;
+                case InputEvent.Drag:
+                    handler.OnDrag(value, state);
+                    break;
+                case InputEvent.DragExit:
+                    handler.OnExitDrag();
+                    break;
+                case InputEvent.KeyboardInput:
+                    handler.OnSetValue(items, value, state);
+                    break;
+                default:
+                    return;
+            }
+        }
+
+        interface IInputHandler
+        {
+            void OnEnterDrag(IEnumerable<ITimelineItem> items, WindowState state);
+            void OnDrag(double value, WindowState state);
+            void OnExitDrag();
+            void OnSetValue(IEnumerable<ITimelineItem> items, double value, WindowState state);
+        }
+
+        class TrimInputHandler : IInputHandler
+        {
+            bool isDragging { get; set; }
+            public bool stretch { get; set; }
+
+            IEnumerable<ITimelineItem> grabbedItems { get; set; }
+
+            public void OnEnterDrag(IEnumerable<ITimelineItem> items, WindowState state)
+            {
+                grabbedItems = items.OfType<ITrimmable>().ToArray();
+                foreach (var item in grabbedItems)
+                {
+                    EditMode.BeginTrim(item, TrimEdge.End);
+                }
+
+                isDragging = true;
+            }
+
+            public void OnDrag(double endValue, WindowState state)
+            {
+                var trimValue = endValue;
+                trimValue = TimelineWindow.instance.state.SnapToFrameIfRequired(trimValue);
+
+                foreach (var item in grabbedItems)
+                {
+                    EditMode.TrimEnd(item, trimValue, stretch);
+                }
+                state.UpdateRootPlayableDuration(state.editSequence.duration);
+            }
+
+            public void OnExitDrag()
+            {
+                isDragging = false;
+                EditMode.FinishTrim();
+                TimelineWindow.instance.Repaint();
+            }
+
+            public void OnSetValue(IEnumerable<ITimelineItem> items, double endValue, WindowState state)
+            {
+                foreach (var item in items.OfType<ITrimmable>())
+                {
+                    EditMode.BeginTrim(item, TrimEdge.End);
+                    EditMode.TrimEnd(item, endValue, stretch);
+                    EditMode.FinishTrim();
+                }
+                state.UpdateRootPlayableDuration(state.editSequence.duration);
+            }
+
+            public void OnGUI(WindowState state)
+            {
+                if (!isDragging) return;
+
+                foreach (var item in grabbedItems)
+                {
+                    EditMode.DrawTrimGUI(state, item.gui, TrimEdge.End);
+                }
+            }
+        }
+
+        class MoveInputHandler : IInputHandler
+        {
+            MoveItemHandler m_MoveItemHandler;
+
+            public void OnEnterDrag(IEnumerable<ITimelineItem> items, WindowState state)
+            {
+                if (items.Any())
+                {
+                    m_MoveItemHandler = new MoveItemHandler(state);
+                    m_MoveItemHandler.Grab(items, items.First().parentTrack);
+                }
+            }
+
+            public void OnDrag(double value, WindowState state)
+            {
+                if (m_MoveItemHandler == null) return;
+
+                var startValue = value;
+                startValue = state.SnapToFrameIfRequired(startValue);
+                m_MoveItemHandler.OnAttractedEdge(null, ManipulateEdges.Both, AttractedEdge.None, startValue);
+            }
+
+            public void OnExitDrag()
+            {
+                if (m_MoveItemHandler == null) return;
+
+                m_MoveItemHandler.Drop();
+                m_MoveItemHandler = null;
+                GUIUtility.ExitGUI();
+            }
+
+            public void OnSetValue(IEnumerable<ITimelineItem> items, double value, WindowState state)
+            {
+                if (!items.Any()) return;
+
+                m_MoveItemHandler = new MoveItemHandler(state);
+                m_MoveItemHandler.Grab(items, items.First().parentTrack);
+                m_MoveItemHandler.OnAttractedEdge(null, ManipulateEdges.Both, AttractedEdge.None, value);
+                m_MoveItemHandler.Drop();
+                m_MoveItemHandler = null;
+            }
+
+            public void OnGUI(Event evt)
+            {
+                if (m_MoveItemHandler != null)
+                    m_MoveItemHandler.OnGUI(evt);
+            }
+
+            public static void SetValueForEdge(IEnumerable<ITimelineItem> items, AttractedEdge edge, double value, WindowState state)
+            {
+                var handler = new MoveItemHandler(state);
+                foreach (var item in items)
+                {
+                    handler.Grab(new[] {item}, item.parentTrack);
+                    handler.OnAttractedEdge(null, ManipulateEdges.Both, edge, value);
+                    handler.Drop();
+                }
+            }
+        }
+    }
+}