streamlit
diff --git a/‎NOTICES‎
Lines changed: 159 additions & 63 deletions b/‎NOTICES‎
Lines changed: 159 additions & 63 deletions
diff --git a/‎README.md‎
Lines changed: 27 additions & 3 deletions b/‎README.md‎
Lines changed: 27 additions & 3 deletions
@@ -1,3 +1,99 @@
+@dnd-kit/accessibility 3.1.1
+MIT
+MIT License
+
+Copyright (c) 2021, Claudéric Demers
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+@dnd-kit/core 6.3.1
+MIT
+MIT License
+
+Copyright (c) 2021, Claudéric Demers
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+@dnd-kit/sortable 10.0.0
+MIT
+MIT License
+
+Copyright (c) 2021, Claudéric Demers
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
+@dnd-kit/utilities 3.2.2
+MIT
+MIT License
+
+Copyright (c) 2021, Claudéric Demers
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+
 @fast-csv/format 4.3.5
 MIT
 The MIT License
@@ -749,27 +845,27 @@ Apache-2.0
 
 archiver-utils 2.1.0
 MIT
-Copyright (c) 2015 Chris Talkington.
-
-Permission is hereby granted, free of charge, to any person
-obtaining a copy of this software and associated documentation
-files (the "Software"), to deal in the Software without
-restriction, including without limitation the rights to use,
-copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the
-Software is furnished to do so, subject to the following
-conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
-OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
-NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
-HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
-WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+Copyright (c) 2015 Chris Talkington.
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 OTHER DEALINGS IN THE SOFTWARE.
 
 archiver-utils 3.0.4
@@ -922,30 +1018,30 @@ THE SOFTWARE.
 
 big-integer 1.6.52
 Unlicense
-This is free and unencumbered software released into the public domain.
-
-Anyone is free to copy, modify, publish, use, compile, sell, or
-distribute this software, either in source code form or as a compiled
-binary, for any purpose, commercial or non-commercial, and by any
-means.
-
-In jurisdictions that recognize copyright laws, the author or authors
-of this software dedicate any and all copyright interest in the
-software to the public domain. We make this dedication for the benefit
-of the public at large and to the detriment of our heirs and
-successors. We intend this dedication to be an overt act of
-relinquishment in perpetuity of all present and future rights to this
-software under copyright law.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-OTHER DEALINGS IN THE SOFTWARE.
-
-For more information, please refer to <http://unlicense.org>
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org>
 
 
 binary 0.3.0
@@ -1636,13 +1732,13 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 color-name 1.1.4
 MIT
-The MIT License (MIT)
-Copyright (c) 2015 Dmitry Ivanov
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-
+The MIT License (MIT)
+Copyright (c) 2015 Dmitry Ivanov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 command-line-args 6.0.1
@@ -5282,17 +5378,17 @@ THE SOFTWARE.
 
 tslib 2.8.1
 0BSD
-Copyright (c) Microsoft Corporation.
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
-REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
-AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
-INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
-LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
-OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+Copyright (c) Microsoft Corporation.
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 PERFORMANCE OF THIS SOFTWARE.
 
 typical 7.3.0
 
@@ -104,7 +104,7 @@ Returns a `PivotTableResult` dict containing the current `config` state.
 | `locked` | `bool` | `False` | Viewer mode with exploration enabled. Toolbar config controls are read-only, viewer-safe actions like data export and group expand/collapse remain available, and header-menu sorting/filtering/`Show Values As` plus drill-down still work. |
 | `export_filename` | `str \| None` | `None` | Base filename (without extension) for exported files (.xlsx, .csv, .tsv). Date and extension are appended automatically. Defaults to `"pivot-table"`. |
 
-> **Frontend-only interactions:** Column resize (drag header edges) and fullscreen mode (toolbar expand icon) are available automatically when `interactive=True`. No additional Python parameters are needed.
+> **Frontend-only interactions:** Drag-and-drop field reordering/moving, column resize (drag header edges), and fullscreen mode (toolbar expand icon) are available automatically when `interactive=True`. No additional Python parameters are needed.
 
 #### Data Control
 
@@ -113,7 +113,7 @@ Returns a `PivotTableResult` dict containing the current `config` state.
 | `null_handling` | `str \| dict[str, str] \| None` | `None` | How to treat null/NaN values. See [Null Handling](#null-handling). |
 | `hidden_attributes` | `list[str] \| None` | `None` | Column names to hide entirely from the UI. |
 | `hidden_from_aggregators` | `list[str] \| None` | `None` | Column names hidden from the values/aggregators dropdown only. |
-| `frozen_columns` | `list[str] \| None` | `None` | Column names that cannot be removed from their toolbar zone. |
+| `frozen_columns` | `list[str] \| None` | `None` | Column names that cannot be removed from their toolbar zone and cannot be reordered or moved via drag-and-drop. |
 | `sorters` | `dict[str, list[str]] \| None` | `None` | Custom sort orderings per dimension. Maps column name to ordered list of values. |
 | `menu_limit` | `int \| None` | `None` | Max items in the header-menu filter checklist. Defaults to 50. |
 | `execution_mode` | `str` | `"auto"` | Performance execution mode. See [Execution Mode](#execution-mode). |
@@ -521,6 +521,29 @@ When `interactive=True`, hovering over the top-right of the toolbar reveals util
 
 In **locked mode**, Reset, Swap, and config import/export are hidden. `Export Data` remains available as a viewer action. The Settings gear remains visible, its popover shows read-only display status plus group expand/collapse actions, and header-menu sorting, filtering, and `Show Values As` stay enabled.
 
+### Drag-and-Drop Field Configuration
+
+When `interactive=True`, each chip in the Rows, Columns, and Values toolbar zones has a **grip-dots drag handle** on its left side. Drag chips to:
+
+- **Reorder within a zone** — change the grouping hierarchy (e.g., swap which dimension is the outer vs. inner group in Rows).
+- **Move between zones** — drag a chip from Rows to Columns (or vice versa), or between Rows/Columns and Values. The Values zone only accepts numeric columns; non-numeric drops are silently rejected.
+
+**Visual feedback:**
+- A floating overlay chip follows the cursor during drag.
+- The source chip stays in place at reduced opacity (ghosted).
+- When dragging over a valid target zone, the zone highlights with a dashed border and subtle tint.
+- Within-zone reorders show smooth shift animations as chips make room.
+
+**Constraints:**
+- `frozen_columns` render without drag handles and cannot be dragged.
+- Synthetic measures cannot be dragged to other zones.
+- When `locked=True`, drag-and-drop is fully disabled.
+- A 5 px activation distance distinguishes clicks from drags, so remove buttons and dropdown toggles work normally.
+
+**Config cleanup on move:** When fields move between zones, related config properties (aggregation, sort, collapsed groups, subtotals, conditional formatting, show-values-as, per-measure totals) are automatically synchronized.
+
+No Python API parameter is required — drag-and-drop is a purely frontend interaction.
+
 ### Column Resize
 
 Drag the **right edge of any column header** to resize that column. A thin resize handle appears on hover (cursor changes to `col-resize`). Minimum column width is 40 px.
@@ -598,6 +621,7 @@ The returned `config` dict contains the current supported configuration state, i
 The component follows WAI-ARIA patterns for all interactive elements:
 
 - **Toolbar**: Arrow keys navigate between toolbar buttons (roving tabindex). Space/Enter activates.
+- **Drag-and-drop**: Space to pick up a chip, arrow keys to move, Space to drop at the new position. Screen reader announcements provided by dnd-kit.
 - **Header menus**: Escape closes. Arrow keys navigate options. Space/Enter selects.
 - **Export/Import popovers**: Focus is automatically placed on the first interactive element when opened. Tab/Shift+Tab moves between controls; tabbing out closes the popover.
 - **Settings popover** (gear icon): Focus moves to first checkbox on open. Escape closes. Tab navigates between toggles.
@@ -623,7 +647,7 @@ uv pip install -e '.[with-streamlit]' --force-reinstall
 uv run streamlit run streamlit_app.py
 ```
 
-The example app (`streamlit_app.py`) contains 16 sections covering the major features and usage patterns with interactive examples and inline documentation.
+The example app (`streamlit_app.py`) contains 17 sections covering the major features and usage patterns with interactive examples and inline documentation.
 
 ### Building the frontend