Depending of the widget type, one of the following enhancement spots can be used:

/PCH/CFW_WIDGET_ALV_GRID
/PCH/CFW_WIDGET_COL_TREE
/PCH/CFW_WIDGET_LIST_TREE
/PCH/CFW_WIDGET_FORM

General

All these BAdIs share the following methods to extend general widget and model tasks:

Method	Description

Method	Description
Widget enhancements
/PCH/IF_CFW_BADI_WI_ROOT~INIT	Called once per session to setup the widget.
/PCH/IF_CFW_BADI_WI_ROOT~BEFORE_FREE	Called once per session before the widgets is released.
/PCH/IF_CFW_BADI_WI_ROOT~FREE	Called once per session when the widgets is released. Should be used to release specific global data.
/PCH/IF_CFW_BADI_WI_ROOT~TITLE_DEFINE	Can be used to override the widget's title.
/PCH/IF_CFW_BADI_WI_ROOT~MENU_DEFINE	Can be used to define or adjust menu entries for context menu (if provided by widget type) or title functions.
/PCH/IF_CFW_BADI_WI_ROOT~FUNCTION_HANDLE	Handle of local actions. For global actions please check the function controller enhancements.
/PCH/IF_CFW_BADI_WI_ROOT~FUNCTION_PROVIDE	Provides meta data of local actions. For global actions please check the function controller enhancements.
Model enhancements
/PCH/IF_CFW_BADI_MDL_ROOT~INIT	Called once per session to setup the model.
/PCH/IF_CFW_BADI_MDL_ROOT~FREE	Called once per session when the model is released. Should be used to release specific global data.
/PCH/IF_CFW_BADI_MDL_ROOT~REFRESH	Called whenever a refresh is requested by the user.
/PCH/IF_CFW_BADI_MDL_ROOT~INVALIDATE	Called when the current data is invalid, should be used to initialize the current data.

ALV Grid Widgets

ALV grid widgets can be extend by implementing the interface /PCH/CFW_WIDGET_ALV_GRID. The following methods are provided to extend widget and model functionality:

Method	Description

Method	Description
Widget enhancements
/PCH/IF_CFW_BADI_WI_ALV_GRID~TOOLBAR_FUNCTIONS_DEFINE	Definition of own toolbar functions
/PCH/IF_CFW_BADI_WI_ALV_GRID~TOOLBAR_FUNCTION_HANDLE	Handling of toolbar functions.
/PCH/IF_CFW_BADI_WI_ALV_GRID~CONTEXT_MENU_REQ	Defining a context menu.
/PCH/IF_CFW_BADI_WI_ALV_GRID~DOUBLE_CLICK	Custom double click action.
/PCH/IF_CFW_BADI_WI_ALV_GRID~HOTSPOT_CLICK	Custom hotspot click action.
/PCH/IF_CFW_BADI_WI_ALV_GRID~BUTTON_CLICK	Custom button click action.
Model enhancements
/PCH/IF_CFW_BADI_MDL_ALV_GRID~STRUCTURE_EXTEND	If the field catalogue of the ALV is based on a structure this method can be used to extend the field catalogue by additional fields.
/PCH/IF_CFW_BADI_MDL_ALV_GRID~RETRIEVE_COLUMNS	This method can be used to adjust the column catalogue. This method must not be used to add additional columns.
/PCH/IF_CFW_BADI_MDL_ALV_GRID~LOAD	When adding additional fields they can be filled with data within this method.

Tree and Column Tree Widgets

Tree widgets can be extend by implementing the interface /PCH/CFW_WIDGET_LIST_TREE or /PCH/CFW_WIDGET_COL_TREE. The following methods are provided to extend widget and model functionality:

Method	Description

Method	Description
Widget enhancements
/PCH/IF_CFW_BADI_WI_TREE~ITEM_DBL_CLICK	Custom item double click action.
/PCH/IF_CFW_BADI_WI_TREE~NODE_DBL_CLICK	Custom node double click action.
/PCH/IF_CFW_BADI_WI_TREE~NODE_CONTEXT_MENU_REQUEST	Build custom node context menu.
/PCH/IF_CFW_BADI_WI_TREE~NODE_CONTEXT_MENU_SELECT	Handle custom node context menu function.
/PCH/IF_CFW_BADI_WI_TREE~ITEM_CONTEXT_MENU_REQUEST	Build custom item context menu.
/PCH/IF_CFW_BADI_WI_TREE~ITEM_CONTEXT_MENU_SELECT	Handle custom item context menu function.
/PCH/IF_CFW_BADI_WI_TREE~DEFAULT_CONTEXT_MENU_REQ	Build custom default context menu (context menu on empty area).
/PCH/IF_CFW_BADI_WI_TREE~DEFAULT_CONTEXT_MENU_SEL	Handle custom default context menu function.
/PCH/IF_CFW_BADI_WI_TREE~NODE_KEY_PRESS	Handle key press when nodes are selected.
/PCH/IF_CFW_BADI_WI_TREE~ITEM_KEY_PRESS	Handle key press when items are selection.
Model enhancements
/PCH/IF_CFW_BADI_MDL_LIST_TREE~LOAD	Called when the model data is loaded.
/PCH/IF_CFW_BADI_MDL_LIST_TREE~LOAD_CHILDREN	Called when a node is expanded and child data has to be loaded.
/PCH/IF_CFW_BADI_MDL_LIST_TREE~LOAD_LATE	Called when additional data is loaded.
/PCH/IF_CFW_BADI_MDL_LIST_TREE~NODE_REFRESH	Called when the data for a node has to be refreshed.

The above context menu enhancements should only be used if you plan to enhance a menu based on special context. Normally context menu enhancements should be done by implementing the general methods /PCH/IF_CFW_BADI_WI_ROOT~MENU_DEFINE and /PCH/IF_CFW_BADI_WI_ROOT~FUNCTION_... for local functions or by enhancing the global function controller.

Column Tree Widgets

Column tree widgets can be enhanced using the methods from “Tree and Column Tree Widgets”. There are additional methods which are available in the BAdI /PCH/CFW_BADI_COL_TREE (/PCH/CFW_WIDGET_COL_TREE) only.

Method	Description

Method	Description
Model enhancements
/PCH/IF_CFW_BADI_MDL_COL_TREE~STRUCTURE_EXTEND	If the field catalogue of the column tree is based on a structure. This method can be used to extend the fieldcatalogue by additional fields.
/PCH/IF_CFW_BADI_MDL_COL_TREE~RETRIEVE_COLUMNS	This method can be used to adjust the column catalogue.
/PCH/IF_CFW_BADI_MDL_COL_TREE~LOAD	Called when the column tree data is loaded. Can be used to extend by own data or to adjust current data.
/PCH/IF_CFW_BADI_MDL_COL_TREE~LOAD_CHILDREN	Called when a node is expanded an child data has to be loaded.
/PCH/IF_CFW_BADI_MDL_COL_TREE~LOAD_LAZY	When new columns are displayed this method is called to load the columns data.
/PCH/IF_CFW_BADI_MDL_COL_TREE~LOAD_LATE	Called when additional data is loaded.
/PCH/IF_CFW_BADI_MDL_COL_TREE~NODE_REFRESH	Called when the data for a node has to be refreshed.

List Tree Widgets

List tree widgets can be enhanced using the methods from “Tree and Column Tree Widgets”. There are additional methods which are available in the BAdI /PCH/CFW_BADI_LIST_TREE (/PCH/CFW_WIDGET_LIST_TREE) only.

Method	Description

Method	Description
Model enhancements
/PCH/IF_CFW_BADI_MDL_LIST_TREE~LOAD	Called when the column tree data is loaded. Can be used to extend by own data or to adjust current data.
/PCH/IF_CFW_BADI_MDL_LIST_TREE~LOAD_CHILDREN	Called when a node is expanded an child data has to be loaded.
/PCH/IF_CFW_BADI_MDL_LIST_TREE~LOAD_LAZY	When new columns are displayed this method is called to load the columns data.
/PCH/IF_CFW_BADI_MDL_LIST_TREE~LOAD_LATE	Called when additional data is loaded.
/PCH/IF_CFW_BADI_MDL_LIST_TREE~NODE_REFRESH	Called when the data for a node has to be refreshed.

Form Widgets

Form widgets can be extend by implementing the interface /PCH/CFW_WIDGET_FORM. The following methods are provided to extend widget and model functionality:

Method	Description

Method	Description
Widget enhancements
/PCH/IF_CFW_BADI_WI_FORM~SAPEVENT	Called on every event in the form (validation, buttons, links).
Model enhancements
/PCH/IF_CFW_BADI_MDL_FORM~CHANGE_FORM	Change form before output.
/PCH/IF_CFW_BADI_MDL_FORM~UPDATE	Update form.