SA_controls - treviewitem

Hi Ignatious,

To bind it against the Navigation menu, set the Dataource parameter of the tree genie to "Navigation" (no quotes) and add a left click handler.

The left click handler should be:

FUNCTION MenuTree_OnClick(INT hMenuItem)
_Navigation_RunCommandFromMenuHandle(hMenuItem, TRUE);
END

This will allow you to preserve navigation stack behaviour.

When you run that up you'll notice it all works - except for when a navigation occurs from something like a contextual change navigation e.g. navigate to equipment from an alarm on an alarm page.

To get that working, you need to add a cicode animation object to the pagethat contains your tree control. Make it class a function: MenuTree_SyncSelection.

The code of which is below.

Note: This is all from a workspace customisation topic I've been putting together so it has not gone through formal testing.

FUNCTION MenuTree_SyncSelection()
STRING sContext, sStartupContext;
STRING sCachedPrimaryPage;
STRING sCurrentPrimaryPage;
STRING sNavigationPath;
INT hMenuItem;


INT nWinCurr = WinNumber();
INT nTreeviewAN = DspGetAnFromName("Treeview");

// Check if the current page has changed from the cached page
sCachedPrimaryPage = PageGetStr(g_sCachedPrimaryDisplayPage, nWinCurr);
sCurrentPrimaryPage = PageGetStr(g_sPrimaryDisplayPage, Workspace_GetWindow());

IF (sCachedPrimaryPage = sCurrentPrimaryPage) THEN
// It hasn't changed, so leave selection as is
RETURN;
END

// Update the cache with the new current page
PageSetStr(g_sCachedPrimaryDisplayPage, sCurrentPrimaryPage, nWinCurr);

IF (sCurrentPrimaryPage <> "") THEN
// Find the menu item corresponding to the current page
hMenuItem = _Navigation_FindMenuItem(sCurrentPrimaryPage);
IF (hMenuItem <> BAD_HANDLE) THEN
sNavigationPath = _Menutree_GetNavigationPath(hMenuItem);
Treeview_Locate(nTreeviewAN, sNavigationPath);
END
END
END


PRIVATE
STRING
FUNCTION _Menutree_GetNavigationPath(INT hMenuHandle)
STRING sMenuName;
STRING sMenuPath;
INT hMenuItem = hMenuHandle;

WHILE (hMenuItem <> BAD_HANDLE) DO
sMenuName = MenuNodeGetProperty(hMenuItem, 0);

IF (sMenuName = g_sNavigation_CoreNavigationMenu OR sMenuName = g_sNavigation_HeaderBarMenu OR sMenuName = g_sNavigation_EquipmentModel) THEN
// Don't add the root items "Navigation", "HeaderBar" or "__EquipmentModel" to the path
hMenuItem = BAD_HANDLE;
ELSE
// Add the item to the path
IF (sMenuPath <> "") THEN
sMenuPath = sMenuName + "." + sMenuPath;
ELSE
sMenuPath = sMenuName;
END

// Move to parent item
hMenuItem = MenuGetParent(hMenuItem);
END
END

RETURN sMenuPath;
END

Hi Ignatious,

To bind it against the Navigation menu, set the Dataource parameter of the tree genie to "Navigation" (no quotes) and add a left click handler.

The left click handler should be:

FUNCTION MenuTree_OnClick(INT hMenuItem)
_Navigation_RunCommandFromMenuHandle(hMenuItem, TRUE);
END

This will allow you to preserve navigation stack behaviour.

When you run that up you'll notice it all works - except for when a navigation occurs from something like a contextual change navigation e.g. navigate to equipment from an alarm on an alarm page.

To get that working, you need to add a cicode animation object to the pagethat contains your tree control. Make it class a function: MenuTree_SyncSelection.

The code of which is below.

Note: This is all from a workspace customisation topic I've been putting together so it has not gone through formal testing.

FUNCTION MenuTree_SyncSelection()
STRING sContext, sStartupContext;
STRING sCachedPrimaryPage;
STRING sCurrentPrimaryPage;
STRING sNavigationPath;
INT hMenuItem;


INT nWinCurr = WinNumber();
INT nTreeviewAN = DspGetAnFromName("Treeview");

// Check if the current page has changed from the cached page
sCachedPrimaryPage = PageGetStr(g_sCachedPrimaryDisplayPage, nWinCurr);
sCurrentPrimaryPage = PageGetStr(g_sPrimaryDisplayPage, Workspace_GetWindow());

IF (sCachedPrimaryPage = sCurrentPrimaryPage) THEN
// It hasn't changed, so leave selection as is
RETURN;
END

// Update the cache with the new current page
PageSetStr(g_sCachedPrimaryDisplayPage, sCurrentPrimaryPage, nWinCurr);

IF (sCurrentPrimaryPage <> "") THEN
// Find the menu item corresponding to the current page
hMenuItem = _Navigation_FindMenuItem(sCurrentPrimaryPage);
IF (hMenuItem <> BAD_HANDLE) THEN
sNavigationPath = _Menutree_GetNavigationPath(hMenuItem);
Treeview_Locate(nTreeviewAN, sNavigationPath);
END
END
END


PRIVATE
STRING
FUNCTION _Menutree_GetNavigationPath(INT hMenuHandle)
STRING sMenuName;
STRING sMenuPath;
INT hMenuItem = hMenuHandle;

WHILE (hMenuItem <> BAD_HANDLE) DO
sMenuName = MenuNodeGetProperty(hMenuItem, 0);

IF (sMenuName = g_sNavigation_CoreNavigationMenu OR sMenuName = g_sNavigation_HeaderBarMenu OR sMenuName = g_sNavigation_EquipmentModel) THEN
// Don't add the root items "Navigation", "HeaderBar" or "__EquipmentModel" to the path
hMenuItem = BAD_HANDLE;
ELSE
// Add the item to the path
IF (sMenuPath <> "") THEN
sMenuPath = sMenuName + "." + sMenuPath;
ELSE
sMenuPath = sMenuName;
END

// Move to parent item
hMenuItem = MenuGetParent(hMenuItem);
END
END

RETURN sMenuPath;
END