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implementation module menuevent
import StdBool, StdList, StdMisc
import clCrossCall_12
from clCCall_12 import winMakeCString, :: CSTR, toModifiers
from osmenu import osMenuItemCheck, :: OSTrackPopUpMenu{..}, :: OSTrackPopUpMenuResult(..)
import commondef, deviceevents, iostate
from menuaccess import menuStateHandleGetHandle, menuStateHandleGetMenuId
from processstack import topShowProcessShowState
from StdProcessAttribute import getProcessToolbarAtt, isProcessToolbar
from StdPSt import accPIO
menueventFatalError :: String String -> .x
menueventFatalError function error
= fatalError function "menuevent" error
/* menuEvent filters the scheduler events that can be handled by this menu device.
For the time being no timer menu elements are added, so these events are ignored.
menuEvent assumes that it is not applied to an empty IOSt and that its device is
present.
*/
menuEvent :: !SchedulerEvent !(PSt .l) -> (!Bool,!Maybe DeviceEvent,!SchedulerEvent,!PSt .l)
menuEvent schedulerEvent pState
# (hasMenuDevice,pState) = accPIO (ioStHasDevice MenuDevice) pState
| not hasMenuDevice // This condition should never hold
= menueventFatalError "menuEvent" "MenuDevice.dEvent applied while MenuDevice not present in IOSt"
| otherwise
= menuEvent schedulerEvent pState
where
menuEvent :: !SchedulerEvent !(PSt .l) -> (!Bool,!Maybe DeviceEvent,!SchedulerEvent,!PSt .l)
menuEvent schedulerEvent=:(ScheduleOSEvent osEvent=:{ccMsg} _) pState=:{io=ioState}
| isToolbarOSEvent ccMsg
# (osdInfo,ioState) = ioStGetOSDInfo ioState
# (myEvent,replyToOS,deviceEvent,ioState)
= filterToolbarEvent osdInfo osEvent ioState
# pState = {pState & io=ioState}
schedulerEvent = if (isJust replyToOS) (ScheduleOSEvent osEvent (fromJust replyToOS)) schedulerEvent
= (myEvent,deviceEvent,schedulerEvent,pState)
| isMenuOSEvent ccMsg
# (processStack,ioState) = ioStGetProcessStack ioState
(found,systemId) = topShowProcessShowState processStack
# (ioId,ioState) = ioStGetIOId ioState
# (tb,ioState) = getIOToolbox ioState
# (found,mDevice,ioState) = ioStGetDevice MenuDevice ioState
# menus = menuSystemStateGetMenuHandles mDevice
# (myEvent,replyToOS,deviceEvent,menus,tb)
= filterOSEvent osEvent (found && systemId==ioId) menus tb
# ioState = ioStSetDevice (MenuSystemState menus) ioState
# ioState = setIOToolbox tb ioState
# pState = {pState & io=ioState}
schedulerEvent = if (isJust replyToOS) (ScheduleOSEvent osEvent (fromJust replyToOS)) schedulerEvent
= (myEvent,deviceEvent,schedulerEvent,pState)
| otherwise
= (False,Nothing,schedulerEvent,pState)
where
isMenuOSEvent :: !Int -> Bool
isMenuOSEvent CcWmCOMMAND = True
isMenuOSEvent _ = False
isToolbarOSEvent :: !Int -> Bool
isToolbarOSEvent CcWmBUTTONCLICKED = True
isToolbarOSEvent CcWmGETTOOLBARTIPTEXT = True
isToolbarOSEvent _ = False
menuEvent schedulerEvent=:(ScheduleMsgEvent msgEvent) pState=:{io=ioState}
# (ioId,ioState) = ioStGetIOId ioState
| ioId<>recLoc.rlIOId || recLoc.rlDevice<>MenuDevice
= (False,Nothing,schedulerEvent,{pState & io=ioState})
| otherwise
# (found,mDevice,ioState) = ioStGetDevice MenuDevice ioState
menus = menuSystemStateGetMenuHandles mDevice
(found,menus) = hasMenuHandlesMenu recLoc.rlParentId menus
deviceEvent = if found (Just (ReceiverEvent msgEvent)) Nothing
# ioState = ioStSetDevice (MenuSystemState menus) ioState
= (found,deviceEvent,schedulerEvent,{pState & io=ioState})
where
recLoc = getMsgEventRecLoc msgEvent
hasMenuHandlesMenu :: !Id !*(MenuHandles .pst) -> (!Bool,!*MenuHandles .pst)
hasMenuHandlesMenu menuId mHs=:{mMenus}
# (found,mMenus)= ucontains (eqMenuId menuId) mMenus
= (found,{mHs & mMenus=mMenus})
where
eqMenuId :: !Id !*(MenuStateHandle .pst) -> *(!Bool,!*MenuStateHandle .pst)
eqMenuId theId msH
# (mId,msH) = menuStateHandleGetMenuId msH
= (theId==mId,msH)
menuEvent schedulerEvent pState
= (False,Nothing,schedulerEvent,pState)
/* filterToolbarEvent filters the OSEvents that can be handled by this menu device.
*/
filterToolbarEvent :: !OSDInfo !OSEvent !(IOSt .l) -> (!Bool,!Maybe [Int],!Maybe DeviceEvent,!IOSt .l)
/* CcWmBUTTONCLICKED is a menu event in case of a toolbar selection.
*/
filterToolbarEvent osdInfo {ccMsg=CcWmBUTTONCLICKED,p2=toolbarPtr,p4=toolbarIndex} ioState
| isToolbarEvent osdInfo toolbarPtr
= (True,Nothing,Just (ToolbarSelection {tbsItemNr=toolbarIndex}),ioState)
| otherwise
= (False,Nothing,Nothing,ioState)
/* CcWmGETTOOLBARTIPTEXT does not continue platform independent event handling, but returns the
String associated with the requested toolbar item.
*/
filterToolbarEvent osdInfo {ccMsg=CcWmGETTOOLBARTIPTEXT,p1=toolbarPtr,p2=toolbarIndex} ioState
| isToolbarEvent osdInfo toolbarPtr
# (atts,ioState) = ioStGetProcessAttributes ioState
(found,att) = cselect isProcessToolbar undef atts
| not found
= (True,Nothing,Nothing,ioState)
# maybe_tip = gettooltip toolbarIndex (getProcessToolbarAtt att)
| isNothing maybe_tip
= (True,Nothing,Nothing,ioState)
// otherwise
# (textptr,ioState) = accIOToolbox (winMakeCString (fromJust maybe_tip)) ioState
= (True,Just [textptr],Nothing,ioState)
| otherwise
= (False,Nothing,Nothing,ioState)
where
gettooltip :: !Int ![ToolbarItem .pst] -> Maybe String
gettooltip i [item:items]
| i==1 && isItem = tip
| otherwise = gettooltip i` items
where
(isItem,i`,tip) = case item of
ToolbarItem _ tip _ -> (True,i-1,tip)
ToolbarSeparator -> (False,i,Nothing)
gettooltip _ _
= Nothing
filterToolbarEvent _ _ _
= menueventFatalError "filterToolbarEvent" "unmatched OSEvent"
/* filterOSEvent filters the OSEvents that can be handled by this menu device.
The Bool argument is True iff the parent process is visible and active.
*/
filterOSEvent :: !OSEvent !Bool !(MenuHandles .pst) !*OSToolbox -> (!Bool,!Maybe [Int],!Maybe DeviceEvent,!MenuHandles .pst,!*OSToolbox)
/* CcWmCOMMAND returns the selected menu item.
This item is identified by:
- the top level menu Id,
- a possibly empty list of parent sub menus. This list is given by zero based indices starting from the top level menu.
- in the parent (sub) menu, the zero based index of the item.
Only MenuItemHandle and SubMenuHandle elements increase the index; all other elements don't.
*/
filterOSEvent {ccMsg=CcWmCOMMAND,p1=item,p2=mods} _ menus=:{mEnabled,mMenus=mHs} tb
| not mEnabled
= (False,Nothing,Nothing,menus,tb)
| otherwise
# (found,deviceEvent,mHs,tb)= getSelectedMenuStateHandlesItem item (toModifiers mods) mHs tb
= (found,Nothing,deviceEvent,{menus & mMenus=mHs},tb)
where
getSelectedMenuStateHandlesItem :: !Int !Modifiers !*[*MenuStateHandle .pst] !*OSToolbox
-> (!Bool,!Maybe DeviceEvent,!*[*MenuStateHandle .pst],!*OSToolbox)
getSelectedMenuStateHandlesItem item modifiers msHs tb
# (empty,msHs) = uisEmpty msHs
| empty
= (False,Nothing,msHs,tb)
# (msH,msHs) = hdtl msHs
# (found,menuEvent,msH,tb) = getSelectedMenuStateHandleItem item modifiers msH tb
| found
= (found,menuEvent,[msH:msHs],tb)
| otherwise
# (found,menuEvent,msHs,tb) = getSelectedMenuStateHandlesItem item modifiers msHs tb
= (found,menuEvent,[msH:msHs],tb)
filterOSEvent _ _ _ _
= menueventFatalError "filterOSEvent" "unmatched OSEvent"
/* popUpMenuEvent returns the proper DeviceEvent for PopUpMenu selections (determined by the OSTrackPopUpMenu result; see osmenu).
*/
popUpMenuEvent :: !OSTrackPopUpMenu !(MenuStateHandle .ps) !*OSToolbox -> (!Maybe DeviceEvent, !MenuStateHandle .ps, !*OSToolbox)
popUpMenuEvent {ospupItem=PopUpTrackedByItemId item,ospupModifiers=mods} msH tb
# (_,menuEvent,msH,tb) = getSelectedMenuStateHandleItem item mods msH tb
= (menuEvent,msH,tb)
popUpMenuEvent _ _ _
= menueventFatalError "popUpMenuEvent" "PopUpTrackedByIndex not expected"
/* getSelectedMenuStateHandleItem item mods msH
determines if there is a menu item identified by item in msh. If so, the corresponding abstract device event is returned.
This function is used by (filterOSEvent {ccMsg=CcWmCOMMAND}) and popUpMenuEvent.
*/
getSelectedMenuStateHandleItem :: !Int !Modifiers !*(MenuStateHandle .pst) !*OSToolbox
-> (!Bool,!Maybe DeviceEvent, !*MenuStateHandle .pst, !*OSToolbox)
getSelectedMenuStateHandleItem item mods msH=:(MenuLSHandle mlsH=:{mlsHandle=mH=:{mSelect,mHandle,mMenuId,mItems}}) tb
| not mSelect
= (False,Nothing,msH,tb)
| otherwise
# (found,menuEvent,_,_,itemHs,tb) = getSelectedMenuElementHandlesItem item mHandle mMenuId mods [] 0 mItems tb
= (found,menuEvent,MenuLSHandle {mlsH & mlsHandle={mH & mItems=itemHs}},tb)
where
getSelectedMenuElementHandlesItem :: !Int !OSMenu !Id !Modifiers ![Int] !Int !*[*MenuElementHandle .ls .pst] !*OSToolbox
-> (!Bool,!Maybe DeviceEvent,![Int],!Int,!*[*MenuElementHandle .ls .pst],!*OSToolbox)
getSelectedMenuElementHandlesItem item mH menuId mods parents zIndex itemHs tb
# (empty,itemHs) = uisEmpty itemHs
| empty
= (False,Nothing,parents,zIndex,itemHs,tb)
# (itemH,itemHs) = hdtl itemHs
# (found,menuEvent,parents,zIndex,itemH,tb) = getSelectedMenuElementHandle item mH menuId mods parents zIndex itemH tb
| found
= (found,menuEvent,parents,zIndex,[itemH:itemHs],tb)
| otherwise
# (found,menuEvent,parents,zIndex,itemHs,tb)= getSelectedMenuElementHandlesItem item mH menuId mods parents zIndex itemHs tb
= (found,menuEvent,parents,zIndex,[itemH:itemHs],tb)
where
getSelectedMenuElementHandle :: !Int !OSMenu !Id !Modifiers ![Int] !Int !*(MenuElementHandle .ls .pst) !*OSToolbox
-> (!Bool,!Maybe DeviceEvent,![Int],!Int, !*MenuElementHandle .ls .pst, !*OSToolbox)
getSelectedMenuElementHandle item mH menuId mods parents zIndex itemH=:(MenuItemHandle {mOSMenuItem,mItemId}) tb
| item==mOSMenuItem
= (True,Just (MenuTraceEvent {mtId=menuId,mtParents=parents,mtItemNr=zIndex,mtModifiers=mods}),parents,zIndex+1,itemH,tb)
| otherwise
= (False,Nothing,parents,zIndex+1,itemH,tb)
getSelectedMenuElementHandle item mH menuId mods parents zIndex itemH=:(SubMenuHandle submenuH=:{mSubSelect,mSubHandle,mSubItems}) tb
| not mSubSelect
= (False,Nothing,parents,zIndex+1,itemH,tb)
| otherwise
# (found,menuEvent,parents1,_,itemHs,tb)
= getSelectedMenuElementHandlesItem item mSubHandle menuId mods (parents++[zIndex]) 0 mSubItems tb
itemH = SubMenuHandle {submenuH & mSubItems=itemHs}
parents = if found parents1 parents
= (found,menuEvent,parents,zIndex+1,itemH,tb)
/* getSelectedMenuElementHandle item mH menuId mods parents zIndex (RadioMenuHandle rH=:{mRadioSelect,mRadioItems=itemHs,mRadioIndex}) tb
# (nrRadios,itemHs) = Ulength itemHs
| not mRadioSelect
= (False,Nothing,parents,zIndex+nrRadios,RadioMenuHandle {rH & mRadioItems=itemHs},tb)
# (found,menuEvent,parents,zIndex1,itemHs,tb) = getSelectedMenuElementHandlesItem item mH menuId mods parents zIndex itemHs tb
| not found
= (found,menuEvent,parents,zIndex1,RadioMenuHandle {rH & mRadioItems=itemHs},tb)
# curIndex = mRadioIndex
newIndex = zIndex1-zIndex
| curIndex==newIndex
= (found,menuEvent,parents,zIndex1,RadioMenuHandle {rH & mRadioItems=itemHs},tb)
| otherwise
# curH = getMenuItemOSMenuItem (itemHs!!(curIndex-1))
newH = getMenuItemOSMenuItem (itemHs!!(newIndex-1))
# tb = OSMenuItemCheck False mH curH tb
# tb = OSMenuItemCheck True mH newH tb
= (found,menuEvent,parents,zIndex1,RadioMenuHandle {rH & mRadioItems=itemHs,mRadioIndex=newIndex},tb)
where
getMenuItemOSMenuItem :: !(MenuElementHandle .ls .pst) -> OSMenuItem
getMenuItemOSMenuItem (MenuItemHandle {mOSMenuItem}) = mOSMenuItem
*/
getSelectedMenuElementHandle item mH menuId mods parents zIndex (RadioMenuHandle rH=:{mRadioSelect,mRadioItems=itemHs,mRadioIndex}) tb
# (nrRadios,itemHs) = ulength itemHs
| not mRadioSelect
= (False,Nothing,parents,zIndex+nrRadios,RadioMenuHandle {rH & mRadioItems=itemHs},tb)
# (found,menuEvent,parents,zIndex1,itemHs,tb) = getSelectedMenuElementHandlesItem item mH menuId mods parents zIndex itemHs tb
| not found
= (found,menuEvent,parents,zIndex1,RadioMenuHandle {rH & mRadioItems=itemHs},tb)
# curIndex = mRadioIndex
newIndex = zIndex1-zIndex
| curIndex==newIndex
= (found,menuEvent,parents,zIndex1,RadioMenuHandle {rH & mRadioItems=itemHs},tb)
| otherwise
# (before,[itemH:after])= splitAt (curIndex-1) itemHs
# (curH,itemH) = getMenuItemOSMenuItem itemH
# (before,[itemH:after])= splitAt (newIndex-1) (before ++ [itemH:after])
# (newH,itemH) = getMenuItemOSMenuItem itemH
# tb = osMenuItemCheck False mH curH 0 0 tb // 0 0 added: dummy on Windows
# tb = osMenuItemCheck True mH newH 0 0 tb // 0 0 added: dummy on Windows
= (found,menuEvent,parents,zIndex1,RadioMenuHandle {rH & mRadioItems=before ++ [itemH:after],mRadioIndex=newIndex},tb)
where
getMenuItemOSMenuItem :: !*(MenuElementHandle .ls .pst) -> (!OSMenuItem,!MenuElementHandle .ls .pst)
getMenuItemOSMenuItem itemH=:(MenuItemHandle {mOSMenuItem}) = (mOSMenuItem,itemH)
getSelectedMenuElementHandle item mH menuId mods parents zIndex itemH=:(MenuSeparatorHandle _) tb
= (False,Nothing,parents,zIndex+1,itemH,tb)
getSelectedMenuElementHandle item mH menuId mods parents zIndex (MenuListLSHandle itemHs) tb
# (found,menuEvent,parents,zIndex,itemHs,tb) = getSelectedMenuElementHandlesItem item mH menuId mods parents zIndex itemHs tb
= (found,menuEvent,parents,zIndex,MenuListLSHandle itemHs,tb)
getSelectedMenuElementHandle item mH menuId mods parents zIndex (MenuExtendLSHandle mExH=:{mExtendItems=itemHs}) tb
# (found,menuEvent,parents,zIndex,itemHs,tb) = getSelectedMenuElementHandlesItem item mH menuId mods parents zIndex itemHs tb
= (found,menuEvent,parents,zIndex,MenuExtendLSHandle {mExH & mExtendItems=itemHs},tb)
getSelectedMenuElementHandle item mH menuId mods parents itemNr (MenuChangeLSHandle mChH=:{mChangeItems=itemHs}) tb
# (found,menuEvent,parents,zIndex,itemHs,tb) = getSelectedMenuElementHandlesItem item mH menuId mods parents zIndex itemHs tb
= (found,menuEvent,parents,zIndex,MenuChangeLSHandle {mChH & mChangeItems=itemHs},tb)
getSelectedMenuElementHandle _ _ _ _ parents zIndex itemH tb
= (False,Nothing,parents,zIndex,itemH,tb)
/* PA: this function is now defined in clCCall_12.
toModifiers :: !Int -> Modifiers
toModifiers i
= { shiftDown = shifton
, optionDown = alton
, commandDown = ctrlon
, controlDown = ctrlon
, altDown = alton
}
where
shifton = i bitand SHIFTBIT <> 0
alton = i bitand ALTBIT <> 0
ctrlon = i bitand CTRLBIT <> 0
*/
// isToolbarEvent checks whether the toolbar equals the OSDInfo toolbar.
isToolbarEvent :: !OSDInfo !OSWindowPtr -> Bool
isToolbarEvent osdInfo toolbarPtr
| isNothing maybeToolbar = False
| otherwise = (fromJust maybeToolbar).toolbarPtr==toolbarPtr
where
maybeToolbar = getOSDInfoOSToolbar osdInfo
/* PA: not used. Instead use menuHandlesGetMenus/menuHandlesSetMenus.
menuHandlesGetMenuStateHandles :: !(MenuHandles .pst) -> (![MenuStateHandle .pst],!MenuHandles .pst)
menuHandlesGetMenuStateHandles mHs=:{mMenus}
= (mMenus,{mHs & mMenus=[]})
*/
|
