DIRECTORY
Buttons USING [Create],
Convert USING [RopeFromInt],
EditSpanSupport USING [Apply],
FS USING [Create, Error, GetName, Lock, nullOpenFile, Open, OpenFile],
FSExtras USING [GetWDir],
Menus USING [AppendMenuEntry, ChangeNumberOfLines, ClickProc, CreateEntry, CreateMenu, GetLine, GetNumberOfLines, InsertMenuEntry, Menu, MenuEntry, MenuLine, MenuProc, SetLine],
MessageWindow USING [Append, Blink, Clear],
NodeProps USING [GetProp, MapProps, PutProp],
Process USING [Detach, GetCurrent],
PutGet USING [FromFileC, FromFileError, FromRope, ToFileC, ToRope, WriteRopePlain],
Rope USING [Cat, Concat, Equal, Flatten, FromRefText, Length, ROPE, SkipTo, Substr],
TEditCompile USING [minAvgLineLeading],
TEditDocument USING [ForgetViewer, LineTable, LineTableRec, RecordViewerForRoot, Selection, TEditDocumentData, TEditDocumentDataRec],
TEditDocumentPrivate USING [AllLevels, Clear, FewerLevels, Find, FindDef, FindWord, FirstLevelOnly, Get, GetImpl, JumpToPrevious, KillSelections, MoreLevels, NewButton, Normalize, OpenButton, Position, PreReset, PreStore, PreviousFile, RecordUnsavedDocument, Reselect, Reset, Save, Split, Store, Time],
TEditImpl USING [PaintTEditDocument, TEditNotifyProc],
TEditInput USING [CommandProc, FreeTree, InterpretAtom, Register],
TEditInputOps USING [CallWithLocks],
TEditLocks USING [Lock, LockDocAndTdd, Unlock, UnlockDocAndTdd],
TEditProfile USING [DoList],
TEditRefresh USING [ScrollToEndOfSel],
TEditScrolling USING [ScrollTEditDocument],
TEditSelection USING [Alloc, Free, InputModify, MakeSelection],
TEditTouchup USING [fullUpdate],
TextEdit USING [DocFromNode, FromRope],
TextLooks USING [noLooks],
TextNode USING [FirstChild, LastLocWithin, Location, LocNumber, LocOffset, LocRelative, LocWithin, NodeProps, Offset, Ref, RefTextNode],
TiogaMenuOps USING [], -- exports tiogaMenu
TIPUser USING [InstantiateNewTIPTable, InvalidTable, TIPTable],
UserProfile USING [Number],
ViewerBLT USING [ChangeNumberOfLines],
ViewerClasses USING [AdjustProc, DestroyProc, GetProc, InitProc, Lock, SaveAborted, SaveProc, SetProc, Viewer, ViewerClass, ViewerClassRec],
ViewerForkers USING [ForkPaint],
ViewerLocks USING [CallUnderViewerTreeLock],
ViewerOps USING [AddProp, EnumerateChildren, EnumerateViewers, FetchProp, FetchViewerClass, PaintHint, PaintViewer, RegisterViewerClass, SetMenu],
ViewerTools USING [EnableUserEdits, SelPos, SelPosRec, TiogaContents, TiogaContentsRec];

QueryTEditDocumentsImpl: CEDAR MONITOR
IMPORTS Buttons, Convert, EditSpanSupport, FS, FSExtras, Menus, MessageWindow, NodeProps, Process, PutGet, Rope, TEditDocument, TEditDocumentPrivate, TextEdit, TextNode, TEditImpl, TEditInput, TEditInputOps, TEditLocks, TEditProfile, TEditRefresh, TEditTouchup, TEditScrolling, TEditSelection, TIPUser, UserProfile, ViewerBLT, ViewerClasses, ViewerForkers, ViewerOps, ViewerLocks, ViewerTools
EXPORTS TEditImpl, TEditDocument, TEditDocumentPrivate, TiogaMenuOps
SHARES Menus, ViewerClasses
= BEGIN

ROPE: TYPE ~ Rope.ROPE;
fatalTiogaError: PUBLIC ERROR = CODE; -- for RETURN WITH ERROR monitor clearing punts
InitTEditDocument: PUBLIC ViewerClasses.InitProc = {
data: REF ANY _ self.data;
self.data _ NIL;
InitViewerDoc[self, data] 
};

InitViewerDoc: PUBLIC PROC [self: ViewerClasses.Viewer, data: REF ANY] = {
InitViewerDocInternal[self: self, file: FS.nullOpenFile, data: data];
};

InitViewerDocInternal: PUBLIC PROC [self: ViewerClasses.Viewer, file: FS.OpenFile, data: REF ANY] = {
tdd: TEditDocument.TEditDocumentData _ NARROW[self.data];

InitTddText: PROC = {
IF tdd.text # NIL THEN TEditInput.FreeTree[tdd.text];
tdd.text _ NIL;
IF file=FS.nullOpenFile THEN {
IF self.file#NIL THEN file _ FS.Open[self.file ! FS.Error => CONTINUE];
};
IF file#FS.nullOpenFile THEN {
self.file _ FS.GetName[file].fullFName;
tdd.text _ PutGet.FromFileC[file !
FS.Error => { self.newFile _ TRUE; CONTINUE };
PutGet.FromFileError => {
MessageWindow.Append["TEditDocumentsImpl: Error in Tioga formatting of ", TRUE];
MessageWindow.Append[self.file, FALSE];
MessageWindow.Blink[];
CONTINUE;
};
];
};
IF tdd.text=NIL THEN {
tdd.text _ TextEdit.DocFromNode[TextEdit.FromRope[""]];
};
};

InitLineTable: PROC = {
IF NodeProps.GetProp[tdd.text, $OpenFirstLevelOnly]#NIL THEN tdd.clipLevel _ 1;
tdd.lineTable.lastLine _ 0;
tdd.lineTable[0].pos _ [TextNode.FirstChild[tdd.text], 0];
};

IF self.link#NIL THEN {
otherInit: ViewerClasses.Viewer _ NIL;
IF tdd=NIL THEN self.data _ tdd _ NARROW[data];  -- someday I should really find out how to fix this in a less horrible manner
[] _ SpinAndLock[tdd, "InitViewerDoc"];
FOR v: ViewerClasses.Viewer _ self.link, v.link UNTIL v=self DO
IF ~v.newVersion THEN {otherInit _ v; EXIT};
ENDLOOP;
IF otherInit=NIL
THEN InitTddText[]
ELSE {
otherTdd: TEditDocument.TEditDocumentData _ NARROW[otherInit.data];
tdd.text _ otherTdd.text;
};
InitLineTable[];
}
ELSE IF data=NIL THEN {
IF tdd=NIL THEN tdd _ AllocateDataForNewViewer[self];
[] _ SpinAndLock[tdd, "InitViewerDoc"];
InitTddText[];
InitLineTable[];
}
ELSE WITH data SELECT FROM
d: TEditDocument.TEditDocumentData => {
self.data _ tdd _ d;
[] _ SpinAndLock[tdd, "InitViewerDoc"];
InitTddText[];
InitLineTable[];
};
root: TextNode.RefTextNode => {
IF tdd=NIL THEN tdd _ AllocateDataForNewViewer[self];
[] _ SpinAndLock[tdd, "InitViewerDoc"];
tdd.text _ root;
InitLineTable[];
};
r: Rope.ROPE => {
IF tdd=NIL THEN tdd _ AllocateDataForNewViewer[self];
[] _ SpinAndLock[tdd, "InitViewerDoc"];
tdd.text _ TextEdit.DocFromNode[TextEdit.FromRope[r]];
InitLineTable[];
};
t: REF TEXT => {
IF tdd=NIL THEN tdd _ AllocateDataForNewViewer[self];
[] _ SpinAndLock[tdd, "InitViewerDoc"];
tdd.text _ TextEdit.DocFromNode[TextEdit.FromRope[Rope.FromRefText[t]]];
InitLineTable[];
};
ENDCASE => {
IF tdd=NIL THEN tdd _ AllocateDataForNewViewer[self];
[] _ SpinAndLock[tdd, "InitViewerDoc"];
tdd.text _ PutGet.FromRope["*ERROR*"];
InitLineTable[];
};
TEditDocument.RecordViewerForRoot[self,tdd.text];
ViewerTools.EnableUserEdits[self];
Unlock[tdd];
};

AllocateDataForNewViewer: PROC [self: ViewerClasses.Viewer] RETURNS [tdd: TEditDocument.TEditDocumentData] = {
tdd _ NEW[TEditDocument.TEditDocumentDataRec];
{ -- for now, just hack in a conservative size line table
maxLines: NAT ~ MAX[2, (self.ch/TEditCompile.minAvgLineLeading)+1];
lineTable: TEditDocument.LineTable ~ NEW[TEditDocument.LineTableRec[maxLines]];
lineTable.lastLine _ 0; lineTable.lastY _ 0;
tdd.lineTable _ lineTable;
};
IF self.column#static AND self.parent=NIL THEN ViewerOps.SetMenu[self, tiogaMenu, FALSE];
self.data _ tdd;
};
number: INT _ 0;
SaveTEditDocument: PUBLIC ViewerClasses.SaveProc = {
tdd: TEditDocument.TEditDocumentData _ NARROW[self.data];
root: TextNode.Ref;
name: ROPE _ self.file;
errorMessage: ROPE _ NIL;

IF name.Length = 0 THEN {
IF ~force THEN ERROR ViewerClasses.SaveAborted["no file name!"];
name _ Rope.Flatten[Rope.Cat[
"SaveAllEdits-",
Convert.RopeFromInt[number _ number + 1],
".tioga"
]];
};

IF tdd.readOnly THEN
ERROR ViewerClasses.SaveAborted["read only document!"];

IF ~force
THEN {
MessageWindow.Clear[];
TEditDocumentPrivate.KillSelections[self];
[] _ SpinAndLock[tdd, "SaveTEditDocument"]; -- may have other operation in progress
root _ tdd.text;
Unlock[tdd]; -- don't need to keep this locked during rest of Save
[] _ TEditLocks.Lock[root, "SaveTEditDocument", read];
}
ELSE root _ tdd.text;

{
ENABLE FS.Error => { errorMessage _ error.explanation; CONTINUE };
defaultKeep: INT _ UserProfile.Number["Tioga.defaultKeep", 2];
file: FS.OpenFile ~ FS.Create[name: RemoveVersionNumber[name], 
setPages: FALSE, setKeep: FALSE, keep: defaultKeep];
newFile: ROPE ~ FS.GetName[file].fullFName;
newName: ROPE ~ RemoveVersionNumber[newFile];
[] _ PutGet.ToFileC[file, root];
FOR v: ViewerClasses.Viewer _ self, v.link DO
v.name _ newName;
v.file _ newFile;
SELECT v.link FROM
NIL, self => EXIT;
ENDCASE;
ENDLOOP;
};
IF ~force THEN TEditLocks.Unlock[root];
IF errorMessage#NIL THEN ERROR ViewerClasses.SaveAborted[errorMessage];
};

RemoveVersionNumber: PROC[name: ROPE] RETURNS[ROPE] = {
RETURN[name.Flatten[start: 0, len: name.SkipTo[0, "!"]]];
};

FileIsMoreRecent: PUBLIC PROC [root: TextNode.Ref, file: Rope.ROPE] RETURNS [BOOL] = {
RETURN [FALSE];
};

nullNode: TextNode.RefTextNode = TextEdit.FromRope[NIL];
SetTEditDocument: ViewerClasses.SetProc = {
IF NOT self.destroyed THEN
WITH self.data SELECT FROM
tdd: TEditDocument.TEditDocumentData => {
SELECT op FROM
NIL, $TiogaContents, $TiogaDocument, $KeepRootStyleProps => {
hint: ViewerOps.PaintHint _ client;
rope: Rope.ROPE;
IF self.link#NIL THEN ERROR; -- not yet implemented
TEditDocumentPrivate.KillSelections[self];
[] _ SpinAndLock[tdd, "SetTEditDocument"];
SELECT op FROM
NIL, $KeepRootStyleProps => {
root: TextNode.RefTextNode = tdd.text;
node: TextNode.RefTextNode = root;
formatName: ATOM = root.formatName;
child: TextNode.RefTextNode = IF node=NIL THEN NIL ELSE node.child;
rope _ IF data=NIL THEN "" ELSE NARROW[data];
IF child#NIL AND child.last AND child.child=NIL
THEN {
RemoveProps: PROC [name: ATOM, value: REF] RETURNS [BOOL] = {
IF name#$DocumentLock AND name#$Viewer 
AND ~(op=$KeepRootStyleProps AND (name=$Prefix OR name=$Postfix)) THEN NodeProps.PutProp[root, name, NIL];
RETURN [FALSE] 
};
rootProps: TextNode.NodeProps;
child^ _ nullNode^;
rootProps _ root.props; root^ _ nullNode^; root.props _ rootProps;
root.child _ child; child.next _ root;
root.last _ child.last _ TRUE; child.rope _ rope;
IF op = $KeepRootStyleProps THEN root.formatName _ formatName;
[] _ NodeProps.MapProps[root, RemoveProps, FALSE, FALSE] 
}
ELSE {
prefix, postfix: REF;
IF op=$KeepRootStyleProps THEN {
prefix _ NodeProps.GetProp[root, $Prefix];
postfix _ NodeProps.GetProp[root, $Postfix] 
};
TEditInput.FreeTree[root];
tdd.text _ TextEdit.DocFromNode[TextEdit.FromRope[rope]];
IF op=$KeepRootStyleProps THEN {
IF prefix#NIL THEN NodeProps.PutProp[tdd.text, $Prefix, prefix];
IF postfix#NIL THEN NodeProps.PutProp[tdd.text, $Postfix, postfix];
tdd.text.formatName _ formatName 
};
};
};
$TiogaContents => {
info: ViewerTools.TiogaContents _ NARROW[data];
rope _ Rope.Concat[info.contents, info.formatting];
TEditInput.FreeTree[tdd.text];
tdd.text _ PutGet.FromRope[rope];
};
$TiogaDocument => {
root: TextNode.RefTextNode _ NARROW[data];
TEditInput.FreeTree[tdd.text];
tdd.text _ root 
};
ENDCASE;
tdd.lineTable.lastLine _ 0;
tdd.lineTable[0].pos _ [TextNode.FirstChild[tdd.text], 0];
TEditDocument.RecordViewerForRoot[self,tdd.text];
self.newVersion _ FALSE; -- clear edited bit
Unlock[tdd];
IF finalise THEN {
ViewerForkers.ForkPaint[self, hint, TRUE, TEditTouchup.fullUpdate, TRUE];
};
};
$SelPos => 
IF ~self.iconic AND ~ self.destroyed THEN {
tSel: TEditDocument.Selection _ TEditSelection.Alloc[];
sel: ViewerTools.SelPos _ NARROW[data];
start, length: INT;
[] _ TEditLocks.LockDocAndTdd[tdd, "SetTEditDocument", read];
IF sel=NIL THEN {
IF tdd.tsInfo#NIL THEN {
start _ TextNode.LocNumber[
at: TextNode.LastLocWithin[tdd.text], skipCommentNodes: TRUE];
length _ 0 
}
ELSE {
start _ 0;
length _ TextNode.LocNumber[
at: TextNode.LastLocWithin[tdd.text], skipCommentNodes: TRUE]-1
};
}
ELSE {
tiogaFile: BOOL _ (NodeProps.GetProp[tdd.text, $FromTiogaFile] = $Yes);
start _ sel.start;
IF ~tiogaFile THEN start _ start+1;  -- hack to compensate for leading CR
length _ sel.length 
};
tSel.start.pos _ TextNode.LocWithin[n: tdd.text, count: start, skipCommentNodes: TRUE];
tSel.end.pos _ TextNode.LocRelative[
location: tSel.start.pos, count: MAX[length-1, 0], skipCommentNodes: TRUE];
TEditLocks.UnlockDocAndTdd[tdd];
tSel.granularity _ IF length=0 THEN point ELSE char;
tSel.viewer _ self;
tSel.data _ tdd;
tSel.insertion _ IF length=0 THEN before ELSE after;
tSel.pendingDelete _ TRUE;
tSel.looks _ TextLooks.noLooks;
TEditSelection.MakeSelection[new: tSel];
TEditSelection.Free[tSel];
TEditRefresh.ScrollToEndOfSel[self, FALSE];
};
$ReadOnly => {
[] _ TEditLocks.LockDocAndTdd[tdd, "SetTEditDocument", read];
self.tipTable _ readonlyTIP;
tdd.readOnly _ TRUE;
TEditLocks.UnlockDocAndTdd[tdd];
};
$ReadWrite => {
[] _ TEditLocks.LockDocAndTdd[tdd, "SetTEditDocument", read];
self.tipTable _ tiogaTIP;
tdd.readOnly _ FALSE;
TEditLocks.UnlockDocAndTdd[tdd];
};
ENDCASE;
};
ENDCASE;
};

GetTEditDocument: ViewerClasses.GetProc = {
data _ NIL;
WITH self.data SELECT FROM
tdd: TEditDocument.TEditDocumentData =>
SELECT op FROM
NIL => {
node: TextNode.RefTextNode = tdd.text.child;
IF node#NIL AND node.last AND node.child=NIL
THEN data _ node.rope
ELSE data _ PutGet.WriteRopePlain[tdd.text]; 
};
$TiogaContents => {
contents, formatting: Rope.ROPE;
dataLen, count: INT;
[dataLen, count, contents] _ PutGet.ToRope[tdd.text];
formatting _ Rope.Substr[base: contents, start: dataLen, len: count-dataLen];
contents _ Rope.Substr[base: contents, start: 0, len: dataLen];
data _ NEW[ViewerTools.TiogaContentsRec _ [contents, formatting]];
};
$SelChars => {  
rope: Rope.ROPE; -- hack to fix compiler problem
DoSelChars: PROC [root: TextNode.RefTextNode, tSel: TEditDocument.Selection] = {
SelConcat: PROC [node: TextNode.RefTextNode, start, len: TextNode.Offset] RETURNS [stop: BOOL] = {
rope _ IF rope = NIL
THEN Rope.Substr[node.rope, start, len]
ELSE Rope.Cat[rope, "\n", Rope.Substr[node.rope, start, len]];
RETURN [FALSE];
};
IF tSel.viewer # NIL AND tSel.granularity # point THEN 
EditSpanSupport.Apply[[tSel.start.pos, tSel.end.pos], SelConcat];
IF rope=NIL THEN rope _ "";
};
TEditInputOps.CallWithLocks[DoSelChars, read];
data _ rope;
};
$SelPos => {  
sel: ViewerTools.SelPos _ NEW[ViewerTools.SelPosRec];
DoSelPos: PROC [root: TextNode.RefTextNode, tSel: TEditDocument.Selection] = {
sel.start _ TextNode.LocNumber[at: tSel.start.pos, skipCommentNodes: TRUE];
sel.length _ TextNode.LocOffset[
loc1: tSel.start.pos, loc2: tSel.end.pos, skipCommentNodes: TRUE] 
};
TEditInputOps.CallWithLocks[DoSelPos, read];
data _ sel;
}
ENDCASE;
ENDCASE;
};

DestroyTEditDocument: ViewerClasses.DestroyProc = {
TEditDocument.ForgetViewer[self];
IF self.link # NIL THEN RETURN; -- linked, so not finished with document yet
TRUSTED {Process.Detach[FORK CleanupAfterDestroy[self, self.file, NARROW[self.data]]] }
};

CleanupAfterDestroy: PROC [self: ViewerClasses.Viewer, file: Rope.ROPE, tdd: TEditDocument.TEditDocumentData] = {
root: TextNode.Ref;
IF tdd = NIL THEN RETURN; -- anybody remember why this is here (SM)?
[] _ SpinAndLock[tdd, "DestroyTEditDocument"];
root _ tdd.text;
IF self.newVersion AND ~self.saveInProgress AND file # NIL THEN
TEditDocumentPrivate.RecordUnsavedDocument[file, root]
ELSE TEditInput.FreeTree[root];
Unlock[tdd] 
};

ChangeMenu: PROC [viewer: ViewerClasses.Viewer, subMenu: Menus.MenuEntry] = {
menu: Menus.Menu _ viewer.menu;
found: BOOL _ FALSE;
numLines: Menus.MenuLine = Menus.GetNumberOfLines[menu];
newLines: Menus.MenuLine _ numLines;
FOR i: Menus.MenuLine IN [1..numLines) DO
IF Rope.Equal[Menus.GetLine[menu,i].name, subMenu.name] THEN { -- yes, so remove it
FOR j: Menus.MenuLine IN (i..numLines) DO
Menus.SetLine[menu, j-1, Menus.GetLine[menu, j]];
ENDLOOP;
newLines _ newLines-1;
found _ TRUE; EXIT 
};
ENDLOOP;
IF ~found THEN {
GoesBefore: PROC [m1, m2: Menus.MenuEntry] RETURNS [BOOL] = {
Priority: PROC [m: Menus.MenuEntry] RETURNS [INTEGER] = {
RETURN [SELECT TRUE FROM
Rope.Equal[m.name, "Find"] => 1,
Rope.Equal[m.name, "FirstLevelOnly"] => 0,
ENDCASE => -1 -- unknown menu goes at bottom -- ] 
};
RETURN [Priority[m1] > Priority[m2]] 
};
newLast: Menus.MenuLine = MIN[numLines, LAST[Menus.MenuLine]];
newLines _ newLines+1;
FOR i: Menus.MenuLine IN [1..numLines) DO
IF GoesBefore[subMenu, Menus.GetLine[menu, i]] THEN {
FOR j: Menus.MenuLine DECREASING IN (i..newLast] DO
Menus.SetLine[menu, j, Menus.GetLine[menu, j-1]]; ENDLOOP;
Menus.SetLine[menu, i, subMenu];
found _ TRUE; EXIT 
};
ENDLOOP;
IF ~found THEN Menus.SetLine[menu, newLast, subMenu];
};
ViewerBLT.ChangeNumberOfLines[viewer, newLines];
};

LevelMenu: PUBLIC Menus.MenuProc = { ChangeMenu[NARROW[parent], levelMenu] };
FindMenu: PUBLIC Menus.MenuProc = { ChangeMenu[NARROW[parent], findMenu] };
unlocked: CONDITION;
SpinAndLock: PUBLIC ENTRY PROC [tdd: TEditDocument.TEditDocumentData, who: Rope.ROPE, interrupt, defer: BOOL _ FALSE] RETURNS [ok: BOOL] = TRUSTED {
ENABLE UNWIND => NULL;
myProcess: PROCESS = LOOPHOLE[Process.GetCurrent[]];
IF myProcess#tdd.lockProcess THEN {
IF interrupt THEN {
IF defer AND tdd.interrupt > 0 THEN RETURN [FALSE];
tdd.interrupt _ tdd.interrupt+1 
};
WHILE tdd.lock>0 DO WAIT unlocked; ENDLOOP;
tdd.lockProcess _ myProcess;
tdd.who _ who; -- save the first guy who got the lock 
IF interrupt THEN tdd.interrupt _ tdd.interrupt-1;
};
tdd.lock _ tdd.lock+1;
RETURN [TRUE];
};

Unlock: PUBLIC ENTRY PROC [tdd: TEditDocument.TEditDocumentData] = TRUSTED {
ENABLE UNWIND => NULL;
IF tdd.lockProcess # Process.GetCurrent[] THEN ERROR;
IF (tdd.lock _ tdd.lock-1) = 0 THEN BROADCAST unlocked 
};

systemDir: ROPE ~ FSExtras.GetWDir[]; -- the BootEssentials live here
SystemTip: PROC [base: ROPE] RETURNS [ROPE] ~ {
RETURN [Rope.Cat[systemDir, base, ".tip"]];
};

ReloadTipTable: PUBLIC PROC = {
newTIP: TIPUser.TIPTable _ ReloadTable[tiogaTIP, "TiogaTIP", SystemTip["Tioga"]];
IF newTIP # NIL THEN tiogaClass.tipTable _ tiogaTIP _ newTIP;
};

ReloadReadonlyTipTable: PUBLIC PROC = {
newTIP: TIPUser.TIPTable _
ReloadTable[readonlyTIP, "ReadonlyTiogaTIP", SystemTip["ReadonlyTioga"]];
IF newTIP # NIL THEN readonlyTIP _ newTIP;
};

readonlyTIP: TIPUser.TIPTable;
tiogaTIP: PUBLIC TIPUser.TIPTable;
ChangeTipTables: PROC [newTIP, oldTIP: TIPUser.TIPTable] = {
WithViewerTreeLocked: PROC ~ {
changeTip: PROC [v: ViewerClasses.Viewer] RETURNS [BOOL _ TRUE] = {
WITH v.data SELECT FROM
tdd: TEditDocument.TEditDocumentData => {
IF v.tipTable = oldTIP THEN v.tipTable _ newTIP;
};
ENDCASE => NULL;
ViewerOps.EnumerateChildren[v, changeTip];
};
typescriptClass: ViewerClasses.ViewerClass ~ ViewerOps.FetchViewerClass[$Typescript];
ViewerOps.EnumerateViewers[changeTip];
IF tiogaClass.tipTable = oldTIP THEN tiogaClass.tipTable _ newTIP;
IF tiogaTIP = oldTIP THEN tiogaTIP _ newTIP;
IF readonlyTIP = oldTIP THEN readonlyTIP _ newTIP;
IF typescriptClass#NIL AND typescriptClass.tipTable = oldTIP THEN typescriptClass.tipTable _ newTIP;
};
ViewerLocks.CallUnderViewerTreeLock[WithViewerTreeLocked];
};

ReloadTable: PUBLIC PROC [oldTIP: TIPUser.TIPTable, profileKey, default: Rope.ROPE] RETURNS [newTIP: TIPUser.TIPTable] = {
ok: BOOL _ TRUE;
AddTable: PROC [r: Rope.ROPE] = {
bad: BOOL _ FALSE;
t: TIPUser.TIPTable;
msg: Rope.ROPE;
IF ~ok THEN RETURN;
IF Rope.Equal[r,"default",FALSE] THEN {
TEditProfile.DoList["", AddTable, default];
RETURN 
};
t _ TIPUser.InstantiateNewTIPTable[r
!
FS.Error => {
bad _ TRUE; 
msg _ Rope.Concat["Cannot read TIP table file: ", r];
CONTINUE
};
TIPUser.InvalidTable => {
bad _ TRUE;
msg _ Rope.Concat["Error(s) saved on TIP.Errors for: ", r];
CONTINUE
}];
IF bad THEN { ok _ FALSE; MessageWindow.Append[msg, TRUE]; RETURN };
IF newTIP=NIL THEN { newTIP _ t; RETURN };
FOR x: TIPUser.TIPTable _ newTIP, x.link UNTIL x=NIL DO
FOR y: TIPUser.TIPTable _ t, y.link UNTIL y=NIL DO
IF x # y THEN LOOP;
ok _ FALSE;
MessageWindow.Append[Rope.Concat["Loop in TIP table layers caused by ", r], TRUE];
RETURN;
ENDLOOP;
ENDLOOP;
FOR x: TIPUser.TIPTable _ newTIP, x.link UNTIL x.link=NIL DO
REPEAT FINISHED => {
newTIP.mouseTicks _ MIN[t.mouseTicks, newTIP.mouseTicks];
x.opaque _ FALSE;
x.link _ t;
};
ENDLOOP;
};
TEditProfile.DoList[profileKey, AddTable, default];
IF ~ok AND oldTIP=NIL THEN {
ok _ TRUE; TEditProfile.DoList["", AddTable, default] 
};
IF oldTIP # NIL AND newTIP # NIL THEN TRUSTED {
Process.Detach[FORK ChangeTipTables[newTIP, oldTIP]];
};
};

alwaysInvalid: BOOL _ FALSE;
LocalAdjust: ViewerClasses.AdjustProc = {
IF self = NIL OR self.iconic OR self.destroyed OR self.paintingWedged THEN RETURN [FALSE];
WITH self.data SELECT FROM
tdd: TEditDocument.TEditDocumentData => {
ch: INTEGER _ self.ch;
lines: TEditDocument.LineTable _ tdd.lineTable;
IF lines # NIL THEN
FOR i: INT IN [0..lines.lastLine] DO
IF lines[i].valid THEN
IF alwaysInvalid OR lines[i].yOffset >= ch THEN
lines[i].valid _ FALSE;
ENDLOOP;
};
ENDCASE;
RETURN [TRUE];
};

tiogaClass: ViewerClasses.ViewerClass _ NEW[ViewerClasses.ViewerClassRec _ [
paint: TEditImpl.PaintTEditDocument,
bltV: top, -- use blt to copy screen contents to top of viewer when height changes
bltH: none, -- but not if width changes
notify: TEditImpl.TEditNotifyProc,
modify: TEditSelection.InputModify,
adjust: LocalAdjust,
init: InitTEditDocument,
set: SetTEditDocument,
get: GetTEditDocument,
save: SaveTEditDocument,
destroy: DestroyTEditDocument,
scroll: TEditScrolling.ScrollTEditDocument
]];

tiogaMenu: PUBLIC Menus.Menu _ Menus.CreateMenu[];

findMenu, levelMenu, lineMenu: PUBLIC Menus.MenuEntry;
preReset: REF Menus.ClickProc = NEW[Menus.ClickProc _ TEditDocumentPrivate.PreReset];
preStore: REF Menus.ClickProc = NEW[Menus.ClickProc _ TEditDocumentPrivate.PreStore];


StyleKindClick: PUBLIC Menus.ClickProc = { TEditInput.InterpretAtom[NARROW[parent], SELECT mouseButton FROM
red => $StyleKindScreen,
yellow, blue => $StyleKindPrint,
ENDCASE => ERROR];
};
StyleKindScreenOp: TEditInput.CommandProc = {
old: REF ~ ViewerOps.FetchProp[viewer, $StyleKind];
IF old#NIL THEN {
ViewerOps.AddProp[viewer, $StyleKind, NIL];
ViewerOps.PaintViewer[viewer: viewer, hint: client, clearClient: TRUE];
};
};
StyleKindPrintOp: TEditInput.CommandProc = {
old: REF ~ ViewerOps.FetchProp[viewer, $StyleKind];
IF old#$Print THEN {
ViewerOps.AddProp[viewer, $StyleKind, $Print];
ViewerOps.PaintViewer[viewer: viewer, hint: client, clearClient: TRUE];
};
};

TEditInput.Register[$StyleKindPrint, StyleKindPrintOp];
TEditInput.Register[$StyleKindScreen, StyleKindScreenOp];



Menus.AppendMenuEntry[menu: tiogaMenu, entry: Menus.CreateEntry[name: "Clear", proc: TEditDocumentPrivate.Clear
--, guarded: TRUE, documentation: preClear--]];
Menus.AppendMenuEntry[menu: tiogaMenu,
entry: Menus.CreateEntry[name: "Reset", proc: TEditDocumentPrivate.Reset, guarded: TRUE, documentation: preReset]];
Menus.AppendMenuEntry[menu: tiogaMenu, entry: Menus.CreateEntry[name: "Get", proc: TEditDocumentPrivate.Get
--, guarded: TRUE, documentation: preGet--]];
Menus.AppendMenuEntry[menu: tiogaMenu,
entry: Menus.CreateEntry[name: "GetImpl", proc: TEditDocumentPrivate.GetImpl
--,guarded: TRUE, documentation: preGetImpl--]];
Menus.AppendMenuEntry[menu: tiogaMenu,
entry: Menus.CreateEntry[name: "PrevFile", proc: TEditDocumentPrivate.PreviousFile
--,guarded: TRUE, documentation: preLoadPrevious--]];
Menus.AppendMenuEntry[menu: tiogaMenu,
entry: Menus.CreateEntry[name: "Store", proc: TEditDocumentPrivate.Store, guarded: TRUE, documentation: preStore]];
Menus.AppendMenuEntry[menu: tiogaMenu, entry: Menus.CreateEntry[name: "Save", proc: TEditDocumentPrivate.Save
--, guarded: TRUE, documentation: preSave--]];
Menus.AppendMenuEntry[tiogaMenu, Menus.CreateEntry["Time", TEditDocumentPrivate.Time]];
Menus.AppendMenuEntry[tiogaMenu, Menus.CreateEntry["Split", TEditDocumentPrivate.Split]];
Menus.AppendMenuEntry[tiogaMenu, Menus.CreateEntry["Places", FindMenu]];
Menus.AppendMenuEntry[tiogaMenu, Menus.CreateEntry["Levels", LevelMenu]];
Menus.InsertMenuEntry[tiogaMenu, Menus.CreateEntry["StyleKind", StyleKindClick], 1];
Menus.InsertMenuEntry[tiogaMenu, Menus.CreateEntry["Reselect", TEditDocumentPrivate.Reselect], 1];
Menus.InsertMenuEntry[tiogaMenu, Menus.CreateEntry["PrevPlace", TEditDocumentPrivate.JumpToPrevious], 1];
Menus.InsertMenuEntry[tiogaMenu, Menus.CreateEntry["Normalize", TEditDocumentPrivate.Normalize], 1];
Menus.InsertMenuEntry[tiogaMenu, Menus.CreateEntry["Position", TEditDocumentPrivate.Position], 1];
Menus.InsertMenuEntry[tiogaMenu, Menus.CreateEntry["Def", TEditDocumentPrivate.FindDef], 1];
Menus.InsertMenuEntry[tiogaMenu, Menus.CreateEntry["Word", TEditDocumentPrivate.FindWord], 1];
Menus.InsertMenuEntry[tiogaMenu, Menus.CreateEntry["Find", TEditDocumentPrivate.Find], 1];
findMenu _ Menus.GetLine[tiogaMenu, 1];
Menus.SetLine[tiogaMenu, 1, NIL];
Menus.InsertMenuEntry[tiogaMenu, Menus.CreateEntry["AllLevels", TEditDocumentPrivate.AllLevels], 1];
Menus.InsertMenuEntry[tiogaMenu, Menus.CreateEntry["FewerLevels", TEditDocumentPrivate.FewerLevels], 1];
Menus.InsertMenuEntry[tiogaMenu, Menus.CreateEntry["MoreLevels", TEditDocumentPrivate.MoreLevels], 1];
Menus.InsertMenuEntry[tiogaMenu, Menus.CreateEntry["FirstLevelOnly", TEditDocumentPrivate.FirstLevelOnly], 1];
levelMenu _ Menus.GetLine[tiogaMenu, 1];
Menus.SetLine[tiogaMenu, 1, NIL];
Menus.ChangeNumberOfLines[tiogaMenu, 1]; -- only show the top level to start
ReloadTipTable[]; ReloadReadonlyTipTable[];
ViewerOps.RegisterViewerClass [$QueryText, tiogaClass];
[] _ Buttons.Create[info: [name: "New"], proc: TEditDocumentPrivate.NewButton, fork: FALSE];
[] _ Buttons.Create[info: [name: "Open"], proc: TEditDocumentPrivate.OpenButton];
END.

	èQueryTEditDocumentsImpl.mesa
Copyright Ó 1985, 1986, 1987 by Xerox Corporation.  All rights reserved.
Michael Plass, July 19, 1985 2:18:22 pm PDT
Russ Atkinson (RRA) August 19, 1985 4:07:47 pm PDT
Doug Wyatt, January 26, 1987 12:19:48 pm PST
Doug Terry, April 9, 1987 1:51:13 pm PDT

make sure another link didn't already init
and if so, copy that data
somebody else already did the init
bad data
old heuristic: IF HasBrackets[self.file] THEN ViewerTools.InhibitUserEdits[self] ELSE
lock so no edits while saving
We want to kill off selections so we don't lock up the world while saving.
Save the file.

Unlock the document if it was locked to begin with.
Returns true if the file on the disk has a more recent create date than the root file create date.  RRA sez that this should never happen in the wonderful world of Cedar 5.0.
[self: ViewerClasses.Viewer, data: REF ANY, finalise: BOOL _ TRUE, op: ATOM _ NIL]
reuse rather than reallocate
Should really have a write lock on the document for this.  change for Tioga2.
Need a repaint
no iconic selections please
for typescripts, NIL => caret at end
includes 1 for root, so must subtract 1
for other text viewers, NIL => entire contents
includes 1 for root, so must subtract 1
[self: ViewerClasses.Viewer, op: ATOM _ NIL] RETURNS [data: REF ANY]
simple case of only one node
this also fixes up the Root => Viewer mapping if necessary
Need to pass self.file as variable because it will be set to NIL
see if already showing the submenu
Menus.ChangeNumberOfLines[menu, newLast-1];
add it.  do insertion sort to get it in the right place
higher priority means goes above in series of submenus
looks at rope for first item to identify the subMenu.
put it here
Would really like to enumerate viewer classes here . . .
try the default by itself
[self: ViewerClasses.Viewer] RETURNS [adjusted: BOOL _ FALSE]
tipTable set below
preSave: REF Menus.ClickProc = NEW[Menus.ClickProc _ PreSave];
preClear: REF Menus.ClickProc = NEW[Menus.ClickProc _ PreClear];
preLoadPrevious: REF Menus.ClickProc = NEW[Menus.ClickProc _ PreLoadPrevious];
preGet: REF Menus.ClickProc = NEW[Menus.ClickProc _ PreGet];
preGetImpl: REF Menus.ClickProc = NEW[Menus.ClickProc _ PreGetImpl];
first row
Stuff for StyleKind button (should live in TEditDocuments3Impl, but I didn't want to change or add interfaces.   MFP)
Menu creation
build the places menu
StyleKind in the places menu is flakey, but there's room
build the levels menu

don't fork since will change the selection; want to capture following typein
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