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291 lines
11 KiB
Plaintext
291 lines
11 KiB
Plaintext
;
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; File: ModalDialogMenuExtensions.a
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;
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; Contains: Assembly language portions of Modal Dialog Menu Access Facility
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; used by both the ROM and System.
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;
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; Written by: Darin Adler, Kevin MacDonell, Roger Mann, and Jeff Miller
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;
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; Copyright: © 1990-1992 by Apple Computer, Inc., all rights reserved.
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;
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; Change History (most recent first):
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;
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; <6> 12/17/92 JSM Remove TheFuture conditionals.
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; <5> 12/9/92 DTY GetIsDialogState and SetIsDialogState are never used, so get rid
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; of them. (Just so Jeff can’t do it.)
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; <4> 6/10/92 JSM Need to include DialogsPriv.a for ROM and future System builds.
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; <3> 6/10/92 JSM Only include LinkedPatchMacros.a for non-ROM builds, add some
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; more comments about why we can use peaOld here.
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; <2> 6/10/92 JSM Moved some routines here from ModalDialogMenuPatches.a to factor
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; out common code in both the ROM and the System. Added
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; InitDialogMgrGlobals for ROM builds and future System builds so
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; we don’t have to keep our globals in code space, and change the
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; Set/GetXXXRoutines to use ExpandMem for the ROM and the future.
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; Changed MDJGNEFilter for ROM builds so it does the right thing.
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; <1> 6/10/92 JSM first checked in
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;
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load 'StandardEqu.d'
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IF NOT forROM THEN
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include 'LinkedPatchMacros.a' ; To get peaOld macro for MDJGNEFilter
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ENDIF
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include 'BalloonsPriv.a' ; To get the _HMModalDialogMenuSetup macro
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include 'ScriptPriv.a' ; To get the equates to call _KeyScript
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include 'MenuMgrPriv.a' ; To get kApplicationMenuID
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include 'DialogsPriv.a' ; To get DialogMgrGlobals definition
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;————————————————————————————————————————————————————————————————————————————————————————————————————
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; ModalDialogMenuSetup - implements _ModalDialogMenuSetup
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;
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; PROCEDURE ModalDialogMenuSetup(nowModal: BOOLEAN);
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; nowModal: TRUE if set up for modal, FALSE if restore to normal
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;
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; Referenced by DispTable.a for the ROM and by a MakePatch macro in ModalDialogMenuPatches.a
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; for the System.
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;
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ModalDialogMenuSetup Proc Export
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SetupHelpMenu
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subq #2,sp ; make space for the useless OsErr return
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move.b 6(sp),-(sp) ; push the boolean
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_HMModalDialogMenuSetup ; set up Help Mgr menu
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addq #2,sp ; Dump result
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SetupKeyScriptMenu
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moveq #smKeyDisableAboutKybds,d0 ; Assume we are going modal
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tst.b 4(sp) ; Are we going modal?
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bne.s @doDisable
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moveq #smKeyEnableAboutKybds,d0 ; Re-enable the KeyScript menu
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@doDisable
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move.w d0,-(sp) ; Pass opcode to KeyScript
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_KeyScript
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SetupApplicationMenu
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subq #4,sp ; Make room to get menuhandle
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move.w #kApplicationMenuID,-(sp) ; Push the menuID
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_GetMHandle ; Look for the Application menu
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move.l (sp)+,d0 ; Did we get it?
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beq.s @done ; Nope
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move.l d0,-(sp) ; Push the menuhandle
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move.w #0,-(sp) ; Zero means whole menu
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tst.b 10(sp) ; Are we going modal?
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bne.s @doDisable ; Non-zero means modal
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_EnableItem
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bra.s @done ; GTFO
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@doDisable
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_DisableItem
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@done
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; Clean up the mess
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move.l (sp)+,a0 ; Pull off the return address
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addq #2,sp ; Dump the original boolean
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jmp (a0) ; Return from whence we came
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EndProc
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;————————————————————————————————————————————————————————————————————————————————————————————————————
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; MDJGNEFilter
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;
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; Pass each event through our filter
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;
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; Referenced by StartInit.a for the ROM and by a MakePatch macro in ModalDialogMenuPatches.a
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; for the System.
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;
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; The ROM and System versions are packaged slightly differently. The ROM version just calls
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; NMGNEFilter after it’s done, whereas the System calls through to whatever the old filter
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; was at patch time.
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;
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MDJGNEFilter Proc Export
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import FilterEvent ; from ModalDialogMenuExtensions.c
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tst.b WWExist ; do nothing unless Window Mgr. is here
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bnz.s @done
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movem.l d0-d2/a0-a2,-(sp)
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move.l a1,a2
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move.l a1,-(sp) ; pass event record pointer
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jsr FilterEvent ; call event filter
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tst.w evtNum(a2) ; is it a null event?
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bnz.s @notNull ; null events must return false
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clr.w 6*4+4(sp) ; change result code to false
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@notNull
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movem.l (sp)+,d0-d2/a0-a2
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IF forROM THEN
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import NMGNEFilter ; from NotificationMgr.c
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pea NMGNEFilter ; call NMGNEFilter
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ELSE
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peaOld ; call the old filter
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; note: we can use peaOld here because
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; the System references us with a MakePatch,
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; if it jumped to MDJGNEFilter from a patch
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; instead then peaOld wouldn’t work
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tst.l (sp) ; check if there was one
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bnz.s @done ; yes, go do it
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addq.l #4,sp ; no filter, don’t call
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ENDIF ; forROM
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@done
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rts
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EndProc
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;————————————————————————————————————————————————————————————————————————————————————————————————————
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; InitDialogMgrGlobals — allocate and initialize globals stored in emDialogGlobals
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;
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; Called by StartBoot.a for the ROM, or by a MakeInstall macro in ModalDialogMenuPatches.a for the System.
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;
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InitDialogMgrGlobals Proc Export
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with DialogMgrGlobals
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; allocate mem & get ptr to it
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move.l #DialogMgrGlobalsSize,D0 ; D0 = size of RAM we need
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_NewPtr SYS,CLEAR ; Get RAM for variables
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; set ptr in ExpandMemRec.emDialogGlobals
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move.l ExpandMem,A1 ; A1 -> ExpandedMem
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move.l A0,ExpandMemRec.emDialogGlobals(A1) ; store vars Pointer in ExpandMem
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; initialize varibles
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; no need to set the ones that are 0, NewPtr did that above, but I’ll leave them here for clarity
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; move.w #0, AnalyzedWindowState(A0) ; used in Set/GetAnalyzedWindowState proc
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move.l #1, AnalyzedWindow(A0) ; used in Set/GetAnalyzedWindow proc
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; move.l #0, SavedMenuState(A0) ; used in Set/GetSavedMenuState proc
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endwith
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rts
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endproc
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;————————————————————————————————————————————————————————————————————————————————————————————————————
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; SetAnalyzedWindowState (GetAnalyzedWindowState)
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; SetAnalyzedWindow (GetAnalyzedWindow)
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; SetSavedMenuState (GetSavedMenuState)
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; SetIsDialogState (GetIsDialogState)
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;
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; Routines to set and get globals used by the Dialog Mgr.
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;
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SetAnalyzedWindowState proc export
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export GetAnalyzedWindowState
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move.l (sp)+,a0
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move.l ExpandMem,a1 ; A1 -> Expanded Low Memory
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move.l ExpandMemRec.emDialogGlobals(a1),a1 ; A1-> ptr to globals
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move.w (sp)+,DialogMgrGlobals.AnalyzedWindowState(a1) ; set new value
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jmp (a0)
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GetAnalyzedWindowState
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move.l ExpandMem,a1 ; A1 -> Expanded Low Memory
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move.l ExpandMemRec.emDialogGlobals(a1),a1 ; A1-> ptr to globals
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move.w DialogMgrGlobals.AnalyzedWindowState(a1),4(sp) ; get return value
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rts
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endproc
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;————————————————————————————————————————————————————————————————————————————————————————————————————
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SetAnalyzedWindow proc export
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export GetAnalyzedWindow
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move.l (sp)+,a0
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move.l ExpandMem,a1 ; A1 -> Expanded Low Memory
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move.l ExpandMemRec.emDialogGlobals(a1),a1 ; A1-> ptr to globals
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move.l (sp)+,DialogMgrGlobals.AnalyzedWindow(a1) ; set new value
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jmp (a0)
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GetAnalyzedWindow
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move.l ExpandMem,a1 ; A1 -> Expanded Low Memory
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move.l ExpandMemRec.emDialogGlobals(a1),a1 ; A1-> ptr to globals
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move.l DialogMgrGlobals.AnalyzedWindow(a1),4(sp) ; get return value
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rts
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endproc
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;————————————————————————————————————————————————————————————————————————————————————————————————————
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SetSavedMenuState proc export
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export GetSavedMenuState
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move.l (sp)+,a0
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move.l ExpandMem,a1 ; A1 -> Expanded Low Memory
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move.l ExpandMemRec.emDialogGlobals(a1),a1 ; A1-> ptr to globals
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move.l (sp)+,DialogMgrGlobals.SavedMenuState(a1) ; set new value
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jmp (a0)
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GetSavedMenuState
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move.l ExpandMem,a1 ; A1 -> Expanded Low Memory
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move.l ExpandMemRec.emDialogGlobals(a1),a1 ; A1-> ptr to globals
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move.l DialogMgrGlobals.SavedMenuState(a1),4(sp) ; get return value
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rts
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endproc
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;————————————————————————————————————————————————————————————————————————————————————————————————————
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; PushMenuState: SavedHandle;
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;
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; savedMenus = 0;
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; if (ActiveWindowNeedsHelp())
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; savedMenus = SetSaveMenusEnableState();
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;
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; On entry: nothing
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; On exit: stack has saved menu handle or NIL
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PushMenuState Proc Export
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import SetSaveMenusEnableState ; from ModalDialogMenuExtensions.c
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import ActiveWindowNeedsHelp ; from ModalDialogMenuExtensions.c
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clr.l -(sp) ; default result of function
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subq #2,sp ; make room for result
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jsr ActiveWindowNeedsHelp ; does this window need help?
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jsr SetSaveMenusEnableState ; pass TAnalyzedWindowState info
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@noHelpNeeded
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move.l (sp)+,d0 ; get result
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move.l (sp),a0 ; get return address
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move.l d0,(sp) ; put result on stack
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jmp (a0) ; return
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endproc
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;————————————————————————————————————————————————————————————————————————————————————————————————————
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; PopMenuState
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;
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; if (savedMenus)
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; RestoreMenusEnableState(savedMenus);
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;
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; On entry: stack has saved menu handle or NIL
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; On exit: handle is popped off the stack
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PopMenuState Proc Export
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import RestoreMenusEnableState ; from ModalDialogMenuExtensions.c
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move.l 4(sp),d0 ; check out the saved menu handle
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beq.s @done ; NIL, do nothing
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move.l d0,-(sp)
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jsr RestoreMenusEnableState ; Restore the state
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@done
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move.l (sp)+,(sp) ; pop off the handle
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rts
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endproc
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;————————————————————————————————————————————————————————————————————————————————————————————————————
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end
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