Steve Pham
38261d0800
* Updated all copyright headers to split the longer original copyright line into 2 shorter lines Signed-off-by: Steve Pham <spham@amazon.com>
70 lines
2.8 KiB
Lua
70 lines
2.8 KiB
Lua
----------------------------------------------------------------------------------------------------
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--
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-- Copyright (c) Contributors to the Open 3D Engine Project.
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-- For complete copyright and license terms please see the LICENSE at the root of this distribution.
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--
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-- SPDX-License-Identifier: Apache-2.0 OR MIT
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--
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--
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--
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----------------------------------------------------------------------------------------------------
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----------------------------------------------------------------------------------------------------
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-- DropTargetCrossCanvas - script for a drop target element that can be dropped on from other
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-- canvases. This script is designed to be used with DraggableCrossCanvasElement
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----------------------------------------------------------------------------------------------------
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local DropTargetCrossCanvas =
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{
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Properties =
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{
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},
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}
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function DropTargetCrossCanvas:OnActivate()
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self.dropTargetHandler = UiDropTargetNotificationBus.Connect(self, self.entityId)
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end
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function DropTargetCrossCanvas:OnDeactivate()
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self.dropTargetHandler:Disconnect()
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end
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function DropTargetCrossCanvas:OnDropHoverStart(draggable)
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if (UiDraggableBus.Event.IsProxy(draggable)) then
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if (UiElementBus.Event.GetNumChildElements(self.entityId) <= 0) then
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UiDraggableBus.Event.SetDragState(draggable, eUiDragState_Valid)
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UiDropTargetBus.Event.SetDropState(self.entityId, eUiDropState_Valid)
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else
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UiDraggableBus.Event.SetDragState(draggable, eUiDragState_Invalid)
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UiDropTargetBus.Event.SetDropState(self.entityId, eUiDropState_Invalid)
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end
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end
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end
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function DropTargetCrossCanvas:OnDropHoverEnd(draggable)
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if (UiDraggableBus.Event.IsProxy(draggable)) then
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UiDraggableBus.Event.SetDragState(draggable, eUiDragState_Normal)
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UiDropTargetBus.Event.SetDropState(self.entityId, eUiDropState_Normal)
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else
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UiDraggableBus.Event.SetDragState(draggable, eUiDragState_Normal)
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UiDropTargetBus.Event.SetDropState(self.entityId, eUiDropState_Normal)
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end
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end
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function DropTargetCrossCanvas:OnDrop(draggable)
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if (not UiDraggableBus.Event.IsProxy(draggable)) then
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if (UiElementBus.Event.GetNumChildElements(self.entityId) <= 0) then
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local myCanvasEntity = UiElementBus.Event.GetCanvas(self.entityId)
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local draggableCanvasEntity = UiElementBus.Event.GetCanvas(draggable)
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if (myCanvasEntity == draggableCanvasEntity) then
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UiElementBus.Event.Reparent(draggable, self.entityId, EntityId())
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else
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-- clone the draggable and remove it from its original canvas
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UiCanvasBus.Event.CloneElement(myCanvasEntity, draggable, self.entityId, EntityId())
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UiElementBus.Event.DestroyElement(draggable)
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end
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end
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end
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end
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return DropTargetCrossCanvas
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