public BuilderDragger(
BuilderPaneWindow paneWindow,
VisualElement root, BuilderSelection selection,
BuilderViewport viewport = null, BuilderParentTracker parentTracker = null)
{
m_PaneWindow = paneWindow;
m_Root = root;
this.viewport = viewport;
m_Canvas = viewport?.documentRootElement;
m_Selection = selection;
m_ParentTracker = parentTracker;
m_PlacementIndicator = viewport?.placementIndicator;
if (m_PlacementIndicator != null)
{
m_PlacementIndicator.documentRootElement = m_Canvas;
}
activators = new List <ManipulatorActivationFilter>();
activators.Add(new ManipulatorActivationFilter {
button = MouseButton.LeftMouse
});
m_Active = false;
m_WeStartedTheDrag = false;
m_DraggedElement = CreateDraggedElement();
m_DraggedElement.AddToClassList(s_DraggerPreviewClassName);
m_Root.Add(m_DraggedElement);
}
public BuilderViewport(BuilderPaneWindow paneWindow, BuilderSelection selection, BuilderElementContextMenu contextMenuManipulator)
{
m_PaneWindow = paneWindow;
m_Selection = selection;
m_ContextMenuManipulator = contextMenuManipulator;
AddToClassList("unity-builder-viewport");
var template = BuilderPackageUtilities.LoadAssetAtPath <VisualTreeAsset>(BuilderConstants.UIBuilderPackagePath + "/BuilderViewport.uxml");
template.CloneTree(this);
m_Toolbar = this.Q("toolbar");
m_ViewportWrapper = this.Q("viewport-wrapper");
m_Viewport = this.Q("viewport");
m_Surface = this.Q("viewport-surface");
m_Surface.pickingMode = PickingMode.Ignore;
m_Canvas = this.Q <BuilderCanvas>("canvas");
m_Canvas.document = paneWindow.document;
m_Canvas.SetSelection(selection);
m_SharedStylesAndDocumentElement = this.Q("shared-styles-and-document");
m_SharedStylesAndDocumentElement.pseudoStates |= PseudoStates.Root; // To apply variables of the active theme that are defined in the :root selector
m_StyleSelectorElementContainer = this.Q(BuilderConstants.StyleSelectorElementContainerName);
m_DocumentRootElement = this.Q("document");
m_DocumentRootElement.StretchToParentSize();
m_Canvas.documentRootElement = m_DocumentRootElement;
m_EditorLayer = this.Q("__unity-editor-layer");
m_EditorLayer.AddToClassList(BuilderConstants.HiddenStyleClassName);
m_TextEditor = this.Q <TextField>("__unity-text-editor");
m_Canvas.editorLayer = m_EditorLayer;
m_PickOverlay = this.Q("pick-overlay");
m_HighlightOverlay = this.Q("highlight-overlay");
m_BuilderParentTracker = this.Q <BuilderParentTracker>("parent-tracker");
m_BuilderSelectionIndicator = this.Q <BuilderSelectionIndicator>("selection-indicator");
m_BuilderPlacementIndicator = this.Q <BuilderPlacementIndicator>("placement-indicator");
m_BuilderResizer = this.Q <BuilderResizer>("resizer");
m_BuilderMover = this.Q <BuilderMover>("mover");
m_BuilderAnchorer = this.Q <BuilderAnchorer>("anchorer");
m_BuilderZoomer = new BuilderZoomer(this);
m_BuilderPanner = new BuilderPanner(this);
m_Notifications = this.Q <BuilderNotifications>("notifications");
m_BuilderViewportDragger = new BuilderViewportDragger(paneWindow, paneWindow.rootVisualElement, selection, this, m_BuilderParentTracker);
m_BuilderMover.parentTracker = m_BuilderParentTracker;
m_PickOverlay.RegisterCallback <MouseDownEvent>(OnPick);
m_PickOverlay.RegisterCallback <MouseMoveEvent>(OnHover);
m_PickOverlay.RegisterCallback <MouseLeaveEvent>(OnMouseLeave);
m_BuilderViewportDragger.RegisterCallbacksOnTarget(m_PickOverlay);
m_Viewport.RegisterCallback <MouseDownEvent>(OnMissPick);
m_Canvas.header.AddManipulator(new Clickable(OnCanvasHeaderClick));
m_ContextMenuManipulator?.RegisterCallbacksOnTarget(m_Viewport);
// Make sure this gets focus when the pane gets focused.
primaryFocusable = this;
focusable = true;
// Restore the zoom scale
zoomScale = paneWindow.document.viewportZoomScale;
contentOffset = paneWindow.document.viewportContentOffset;
// Repaint bug workaround.
m_CheckerboardBackground = this.Q <CheckerboardBackground>();
RegisterCallback <BlurEvent>(e => { m_CheckerboardBackground.MarkDirtyRepaint(); });
RegisterCallback <FocusEvent>(e => { m_CheckerboardBackground.MarkDirtyRepaint(); });
}
