Rename IfcViewerFull to Bonsai Viewer

Directory src/ifcviewer-full -> src/bonsaiviewer, CMake target
IfcViewerFull -> BonsaiViewer, namespace ifcviewerfull -> bonsaiviewer,
QApplication / window titles / connector path now use the new brand.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/bonsaiviewer/SessionState.h

@@ -0,0 +1,129 @@
+// This file was generated with the assistance of an AI coding tool.
+/********************************************************************************
+ *                                                                              *
+ * This file is part of IfcOpenShell.                                           *
+ *                                                                              *
+ * IfcOpenShell is free software: you can redistribute it and/or modify         *
+ * it under the terms of the Lesser GNU General Public License as published by  *
+ * the Free Software Foundation, either version 3.0 of the License, or          *
+ * (at your option) any later version.                                          *
+ *                                                                              *
+ * IfcOpenShell is distributed in the hope that it will be useful,              *
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of               *
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the                 *
+ * Lesser GNU General Public License for more details.                          *
+ *                                                                              *
+ * You should have received a copy of the Lesser GNU General Public License     *
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.         *
+ *                                                                              *
+ ********************************************************************************/
+
+#ifndef IFCINTERFACE_SESSIONSTATE_H
+#define IFCINTERFACE_SESSIONSTATE_H
+
+#include <QHash>
+#include <QObject>
+#include <QString>
+#include <QVariantMap>
+
+class Federation;
+class SceneLoader;
+class ViewportWindow;
+
+namespace bonsaiviewer {
+
+class ElementRegistry;
+
+namespace modules::connectors { class ConnectorRegistry; }
+
+class SessionState : public QObject {
+    Q_OBJECT
+
+public:
+    explicit SessionState(QObject* parent = nullptr);
+
+    // Owned by SessionState once it can be tied to a viewport. Wires
+    // loader → element registry signals internally. Call exactly once.
+    void createLoader(ViewportWindow* viewport);
+
+    Federation* federation() const { return federation_; }
+    SceneLoader* loader() const { return loader_; }
+    ElementRegistry* elementRegistry() const { return element_registry_; }
+    modules::connectors::ConnectorRegistry* connectorRegistry() const { return connector_registry_; }
+    QString statusMode() const { return status_mode_; }
+    QString statusDetail() const { return status_detail_; }
+
+    void setSelectedObjectId(uint32_t object_id);
+    uint32_t selectedObjectId() const { return selected_object_id_; }
+    void setStatusMessage(const QString& mode, const QString& detail);
+
+    // Generic progress reporting for any long-running operation (load,
+    // convert, export, ...). Subscribers (the status bar) react to the
+    // signals; they do not need to know which operation is running.
+    void beginProgress(const QString& label);
+    void setProgress(int percent);
+    void endProgress();
+
+    void setModelMapping(const QString& fed_id, uint32_t model_id);
+    void removeModelMappingByFedId(const QString& fed_id);
+    void clearModelMappings();
+
+    // Per-session cloud metadata returned by connectors (revision/date/
+    // author/...). Not persisted to the .ifcfed; display only. Lifetime
+    // is tied to the fed_id — removeModelMappingByFedId and
+    // clearModelMappings drop the matching entries.
+    void setCloudMetadata(const QString& fed_id, const QVariantMap& metadata);
+    QVariantMap cloudMetadata(const QString& fed_id) const;
+    uint32_t modelIdForFedId(const QString& fed_id) const;
+    QString fedIdForModelId(uint32_t model_id) const;
+    QList<uint32_t> modelIds() const;
+
+    void notifySelectionChanged();
+    void notifyModelsChanged();
+    void notifyFederationChanged();
+    void notifyVisibilityChanged();
+    void notifyModelGeometryReady(uint32_t model_id);
+    void notifyProjectOpened(const QString& path);
+    void notifyProjectSaved(const QString& path);
+    void notifyProjectReset();
+
+signals:
+    void projectOpened(const QString& path);
+    void projectSaved(const QString& path);
+    void projectReset();
+    void modelsChanged();
+    // Fires whenever a command has mutated the federation (groups, transforms,
+    // origin, config). Always implies the project is now dirty; callers do not
+    // emit this on save/load/reset — projectSaved/Opened/Reset cover those.
+    void federationChanged();
+    void visibilityChanged();
+    // Fires when a model's geometry has been pushed to the viewport. Fires
+    // for both sidecar-cache and stream loads; subscribers that just need to
+    // re-derive view state (e.g. ViewportView::refresh) listen to this.
+    void modelGeometryReady(uint32_t model_id);
+    // Fires when SceneLoader reports a load failure. SessionState turns the
+    // raw loader signal into a session-level one so views (e.g. the MessageBox)
+    // can subscribe without touching the loader directly.
+    void loadError(const QString& message);
+    void selectionChanged(uint32_t object_id);
+    void statusMessageChanged(const QString& mode, const QString& detail);
+    void progressBegan(const QString& label);
+    void progressChanged(int percent);
+    void progressEnded();
+
+private:
+    Federation* federation_ = nullptr;
+    SceneLoader* loader_ = nullptr;
+    ElementRegistry* element_registry_ = nullptr;
+    modules::connectors::ConnectorRegistry* connector_registry_ = nullptr;
+    uint32_t selected_object_id_ = 0;
+    QString status_mode_;
+    QString status_detail_;
+    QHash<QString, uint32_t> fed_id_to_model_id_;
+    QHash<uint32_t, QString> model_id_to_fed_id_;
+    QHash<QString, QVariantMap> cloud_metadata_;
+};
+
+} // namespace bonsaiviewer
+
+#endif