refactor(new_editor/app): reorganize host structure and add smoke test
This commit is contained in:
293
new_editor/app/Features/Hierarchy/HierarchyPanelInteraction.cpp
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293
new_editor/app/Features/Hierarchy/HierarchyPanelInteraction.cpp
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#include "HierarchyPanelSupport.h"
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namespace XCEngine::UI::Editor::App {
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using namespace HierarchyPanelSupport;
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std::vector<UIInputEvent> HierarchyPanel::BuildInteractionInputEvents(
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const std::vector<UIInputEvent>& inputEvents,
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const UIRect& bounds,
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bool allowInteraction,
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bool panelActive) const {
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const std::vector<UIInputEvent> rawEvents = FilterHierarchyInputEvents(
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bounds,
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inputEvents,
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allowInteraction,
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panelActive,
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HasActivePointerCapture());
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struct DragPreviewState {
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std::string armedItemId = {};
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UIPoint pressPosition = {};
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bool armed = false;
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bool dragging = false;
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};
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const Widgets::UIEditorTreeViewLayout layout =
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m_treeFrame.layout.bounds.width > 0.0f
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? m_treeFrame.layout
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: Widgets::BuildUIEditorTreeViewLayout(
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bounds,
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m_treeItems,
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m_expansion,
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BuildEditorTreeViewMetrics());
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DragPreviewState preview = {};
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preview.armed = m_dragState.armed;
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preview.armedItemId = m_dragState.armedItemId;
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preview.pressPosition = m_dragState.pressPosition;
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preview.dragging = m_dragState.dragging;
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std::vector<UIInputEvent> filteredEvents = {};
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filteredEvents.reserve(rawEvents.size());
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for (const UIInputEvent& event : rawEvents) {
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bool suppress = false;
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switch (event.type) {
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case UIInputEventType::PointerButtonDown:
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if (event.pointerButton == UIPointerButton::Left) {
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UIEditorTreeViewHitTarget hitTarget = {};
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const Widgets::UIEditorTreeViewItem* hitItem =
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ResolveHitItem(layout, m_treeItems, event.position, &hitTarget);
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if (hitItem != nullptr && hitTarget.kind == UIEditorTreeViewHitTargetKind::Row) {
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preview.armed = true;
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preview.armedItemId = hitItem->itemId;
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preview.pressPosition = event.position;
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} else {
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preview.armed = false;
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preview.armedItemId.clear();
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}
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}
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if (preview.dragging) {
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suppress = true;
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}
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break;
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case UIInputEventType::PointerMove:
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if (preview.dragging) {
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suppress = true;
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break;
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}
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if (preview.armed &&
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ComputeSquaredDistance(event.position, preview.pressPosition) >=
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kDragThreshold * kDragThreshold) {
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preview.dragging = true;
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suppress = true;
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}
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break;
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case UIInputEventType::PointerButtonUp:
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if (event.pointerButton == UIPointerButton::Left) {
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if (preview.dragging) {
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suppress = true;
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preview.dragging = false;
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}
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preview.armed = false;
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preview.armedItemId.clear();
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} else if (preview.dragging) {
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suppress = true;
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}
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break;
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case UIInputEventType::PointerLeave:
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if (preview.dragging) {
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suppress = true;
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}
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break;
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case UIInputEventType::FocusLost:
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preview.armed = false;
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preview.dragging = false;
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preview.armedItemId.clear();
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break;
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default:
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break;
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}
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if (!suppress) {
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filteredEvents.push_back(event);
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}
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}
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return filteredEvents;
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}
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void HierarchyPanel::ProcessDragAndFrameEvents(
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const std::vector<UIInputEvent>& inputEvents,
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const UIRect& bounds,
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bool allowInteraction,
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bool panelActive) {
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const std::vector<UIInputEvent> filteredEvents = FilterHierarchyInputEvents(
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bounds,
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inputEvents,
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allowInteraction,
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panelActive,
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HasActivePointerCapture());
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if (m_treeFrame.result.selectionChanged) {
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EmitSelectionEvent();
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}
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if (m_treeFrame.result.renameRequested &&
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!m_treeFrame.result.renameItemId.empty()) {
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Event event = {};
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event.kind = EventKind::RenameRequested;
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event.itemId = m_treeFrame.result.renameItemId;
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if (const HierarchyNode* node = m_model.FindNode(event.itemId); node != nullptr) {
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event.label = node->label;
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}
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m_frameEvents.push_back(std::move(event));
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}
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for (const UIInputEvent& event : filteredEvents) {
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switch (event.type) {
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case UIInputEventType::PointerButtonDown:
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if (event.pointerButton == UIPointerButton::Left) {
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UIEditorTreeViewHitTarget hitTarget = {};
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const Widgets::UIEditorTreeViewItem* hitItem =
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ResolveHitItem(m_treeFrame.layout, m_treeItems, event.position, &hitTarget);
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if (hitItem != nullptr && hitTarget.kind == UIEditorTreeViewHitTargetKind::Row) {
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m_dragState.armed = true;
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m_dragState.armedItemId = hitItem->itemId;
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m_dragState.pressPosition = event.position;
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} else {
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m_dragState.armed = false;
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m_dragState.armedItemId.clear();
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}
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}
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break;
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case UIInputEventType::PointerMove:
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if (m_dragState.armed &&
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!m_dragState.dragging &&
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ComputeSquaredDistance(event.position, m_dragState.pressPosition) >=
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kDragThreshold * kDragThreshold) {
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m_dragState.dragging = !m_dragState.armedItemId.empty();
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m_dragState.draggedItemId = m_dragState.armedItemId;
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m_dragState.dropTargetItemId.clear();
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m_dragState.dropToRoot = false;
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m_dragState.validDropTarget = false;
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if (m_dragState.dragging) {
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m_dragState.requestPointerCapture = true;
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if (!m_selection.IsSelected(m_dragState.draggedItemId)) {
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m_selection.SetSelection(m_dragState.draggedItemId);
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EmitSelectionEvent();
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}
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}
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}
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if (m_dragState.dragging) {
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UIEditorTreeViewHitTarget hitTarget = {};
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const Widgets::UIEditorTreeViewItem* hitItem =
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ResolveHitItem(m_treeFrame.layout, m_treeItems, event.position, &hitTarget);
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m_dragState.dropTargetItemId.clear();
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m_dragState.dropToRoot = false;
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m_dragState.validDropTarget = false;
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if (hitItem != nullptr &&
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(hitTarget.kind == UIEditorTreeViewHitTargetKind::Row ||
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hitTarget.kind == UIEditorTreeViewHitTargetKind::Disclosure)) {
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m_dragState.dropTargetItemId = hitItem->itemId;
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m_dragState.validDropTarget =
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m_model.CanReparent(m_dragState.draggedItemId, m_dragState.dropTargetItemId);
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} else if (ContainsPoint(bounds, event.position)) {
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m_dragState.dropToRoot = true;
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m_dragState.validDropTarget =
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m_model.GetParentId(m_dragState.draggedItemId).has_value();
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}
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}
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break;
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case UIInputEventType::PointerButtonUp:
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if (event.pointerButton != UIPointerButton::Left) {
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break;
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}
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if (m_dragState.dragging) {
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if (m_dragState.validDropTarget) {
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const std::string draggedItemId = m_dragState.draggedItemId;
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const std::string dropTargetItemId = m_dragState.dropTargetItemId;
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const bool changed =
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m_dragState.dropToRoot
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? m_model.MoveToRoot(draggedItemId)
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: m_model.Reparent(draggedItemId, dropTargetItemId);
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if (changed) {
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RebuildItems();
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EmitReparentEvent(
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m_dragState.dropToRoot ? EventKind::MovedToRoot : EventKind::Reparented,
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draggedItemId,
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dropTargetItemId);
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}
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}
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m_dragState.armed = false;
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m_dragState.dragging = false;
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m_dragState.armedItemId.clear();
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m_dragState.draggedItemId.clear();
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m_dragState.dropTargetItemId.clear();
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m_dragState.dropToRoot = false;
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m_dragState.validDropTarget = false;
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m_dragState.requestPointerRelease = true;
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} else {
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m_dragState.armed = false;
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m_dragState.armedItemId.clear();
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}
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break;
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case UIInputEventType::FocusLost:
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if (m_dragState.dragging) {
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m_dragState.requestPointerRelease = true;
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}
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m_dragState = {};
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break;
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default:
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break;
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}
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}
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}
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void HierarchyPanel::Update(
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const UIEditorPanelContentHostFrame& contentHostFrame,
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const std::vector<UIInputEvent>& inputEvents,
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bool allowInteraction,
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bool panelActive) {
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ResetTransientState();
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const UIEditorPanelContentHostPanelState* panelState =
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FindMountedHierarchyPanel(contentHostFrame);
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if (panelState == nullptr) {
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m_visible = false;
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m_treeFrame = {};
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m_dragState = {};
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return;
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}
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if (m_treeItems.empty()) {
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RebuildItems();
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}
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m_visible = true;
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const std::vector<UIInputEvent> interactionEvents =
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BuildInteractionInputEvents(
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inputEvents,
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panelState->bounds,
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allowInteraction,
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panelActive);
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m_treeFrame = UpdateUIEditorTreeViewInteraction(
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m_treeInteractionState,
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m_selection,
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m_expansion,
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panelState->bounds,
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m_treeItems,
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interactionEvents,
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BuildEditorTreeViewMetrics());
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ProcessDragAndFrameEvents(
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inputEvents,
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panelState->bounds,
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allowInteraction,
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panelActive);
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}
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} // namespace XCEngine::UI::Editor::App
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