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fix(undo): 修复撤销按钮状态不刷新及空指针防护
- 将 refresh_undo_redo_buttons 提升为公共函数(声明在 callbacks_internal.h,实现在 callbacks.c) - 在所有 push_record 的操作回调末尾调用 refresh_undo_redo_buttons,确保按钮状态实时更新 - 修复 redo() 中 OP_CLEAN/OP_IMPORT 的 new_paths 空指针风险 - 移除 undo_redo.c 中废弃的 apply_record 函数 Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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@@ -20,4 +20,7 @@ StringList *get_current_raw_data(Ihandle *dlg);
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// 获取当前活动的列表 UI 控件
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Ihandle *get_current_list(Ihandle *dlg);
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// 刷新撤销/重做按钮的启用状态
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void refresh_undo_redo_buttons(Ihandle *dlg);
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#endif // CALLBACKS_INTERNAL_H
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