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diff --git a/indra/newview/llfloatergltfasseteditor.h b/indra/newview/llfloatergltfasseteditor.h
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+++ b/indra/newview/llfloatergltfasseteditor.h
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+/**
+ * @file llfloatergltfasseteditor.h
+ * @author Brad Payne
+ * @brief floater to exercise standard fonts
+ *
+ * $LicenseInfo:firstyear=2024&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2024, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library 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 GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLFLOATERGLTFASSETEDITOR_H
+#define LL_LLFLOATERGLTFASSETEDITOR_H
+
+#include "llfloater.h"
+
+#include "llfolderviewmodel.h"
+#include "llgltffolderviews.h"
+
+class LLGLTFViewModel;
+class LLFolderViewFolder;
+class LLFolderViewModelItem;
+
+class LLGLTFSort
+{
+public:
+    LLGLTFSort() { }
+    bool operator()(const LLGLTFItem* const& a, const LLGLTFItem* const& b) const;
+private:
+};
+
+class LLGLTFFilter : public LLFolderViewFilter
+{
+public:
+    LLGLTFFilter() { mEmpty = ""; }
+    ~LLGLTFFilter() {}
+
+    bool                check(const LLFolderViewModelItem* item) { return true; }
+    bool                checkFolder(const LLFolderViewModelItem* folder) const { return true; }
+    void                setEmptyLookupMessage(const std::string& message) { }
+    std::string         getEmptyLookupMessage(bool is_empty_folder = false) const { return mEmpty; }
+    bool                showAllResults() const { return true; }
+    std::string::size_type getStringMatchOffset(LLFolderViewModelItem* item) const { return std::string::npos; }
+    std::string::size_type getFilterStringSize() const { return 0; }
+
+    bool                isActive() const { return false; }
+    bool                isModified() const { return false; }
+    void                clearModified() { }
+    const std::string& getName() const { return mEmpty; }
+    const std::string& getFilterText() { return mEmpty; }
+    void                setModified(EFilterModified behavior = FILTER_RESTART) { }
+
+    void                resetTime(S32 timeout) { }
+    bool                isTimedOut() { return false; }
+
+    bool                isDefault() const { return true; }
+    bool                isNotDefault() const { return false; }
+    void                markDefault() { }
+    void                resetDefault() { }
+
+    S32                 getCurrentGeneration() const { return 0; }
+    S32                 getFirstSuccessGeneration() const { return 0; }
+    S32                 getFirstRequiredGeneration() const { return 0; }
+private:
+    std::string mEmpty;
+};
+
+class LLGLTFViewModel
+    : public LLFolderViewModel<LLGLTFSort, LLGLTFItem, LLGLTFItem, LLGLTFFilter>
+{
+public:
+    typedef LLFolderViewModel< LLGLTFSort, LLGLTFItem, LLGLTFItem, LLGLTFFilter> base_t;
+    LLGLTFViewModel();
+
+    void sort(LLFolderViewFolder* folder);
+    bool startDrag(std::vector<LLFolderViewModelItem*>& items) { return false; }
+
+private:
+};
+
+class LLFloaterGltfAssetEditor : public LLFloater
+{
+public:
+    LLFloaterGltfAssetEditor(const LLSD& key);
+    ~LLFloaterGltfAssetEditor();
+
+    bool postBuild() override;
+
+    LLGLTFViewModel& getRootViewModel() { return mGLTFViewModel; }
+
+private:
+    LLGLTFViewModel mGLTFViewModel;
+
+    LLPanel* mItemListPanel = nullptr;
+    LLFolderView* mConversationsRoot = nullptr;
+};
+
+#endif LL_LLFLOATERGLTFASSETEDITOR_H