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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef _MDB_
# include "mdb.h"
#endif
#ifndef _MORK_
# include "mork.h"
#endif
#ifndef _MORKNODE_
# include "morkNode.h"
#endif
#ifndef _MORKENV_
# include "morkEnv.h"
#endif
#ifndef _MORKCURSOR_
# include "morkCursor.h"
#endif
#ifndef _MORKROWCELLCURSOR_
# include "morkRowCellCursor.h"
#endif
#ifndef _MORKSTORE_
# include "morkStore.h"
#endif
#ifndef _MORKROWOBJECT_
# include "morkRowObject.h"
#endif
#ifndef _MORKROW_
# include "morkRow.h"
#endif
// 456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
// ````` ````` ````` ````` `````
// { ===== begin morkNode interface =====
/*public virtual*/ void morkRowCellCursor::CloseMorkNode(
morkEnv* ev) // CloseRowCellCursor() only if open
{
if (this->IsOpenNode()) {
this->MarkClosing();
this->CloseRowCellCursor(ev);
this->MarkShut();
}
}
/*public virtual*/
morkRowCellCursor::~morkRowCellCursor() // CloseRowCellCursor() executed
// earlier
{
CloseMorkNode(mMorkEnv);
MORK_ASSERT(this->IsShutNode());
}
/*public non-poly*/
morkRowCellCursor::morkRowCellCursor(morkEnv* ev, const morkUsage& inUsage,
nsIMdbHeap* ioHeap,
morkRowObject* ioRowObject)
: morkCursor(ev, inUsage, ioHeap),
mRowCellCursor_RowObject(0),
mRowCellCursor_Col(0) {
if (ev->Good()) {
if (ioRowObject) {
morkRow* row = ioRowObject->mRowObject_Row;
if (row) {
if (row->IsRow()) {
mCursor_Pos = -1;
mCursor_Seed = row->mRow_Seed;
morkRowObject::SlotStrongRowObject(ioRowObject, ev,
&mRowCellCursor_RowObject);
if (ev->Good()) mNode_Derived = morkDerived_kRowCellCursor;
} else
row->NonRowTypeError(ev);
} else
ioRowObject->NilRowError(ev);
} else
ev->NilPointerError();
}
}
NS_IMPL_ISUPPORTS_INHERITED(morkRowCellCursor, morkCursor, nsIMdbRowCellCursor)
/*public non-poly*/ void morkRowCellCursor::CloseRowCellCursor(morkEnv* ev) {
if (this->IsNode()) {
mCursor_Pos = -1;
mCursor_Seed = 0;
morkRowObject::SlotStrongRowObject((morkRowObject*)0, ev,
&mRowCellCursor_RowObject);
this->CloseCursor(ev);
this->MarkShut();
} else
this->NonNodeError(ev);
}
// } ===== end morkNode methods =====
// ````` ````` ````` ````` `````
/*static*/ void morkRowCellCursor::NilRowObjectError(morkEnv* ev) {
ev->NewError("nil mRowCellCursor_RowObject");
}
/*static*/ void morkRowCellCursor::NonRowCellCursorTypeError(morkEnv* ev) {
ev->NewError("non morkRowCellCursor");
}
// 456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789
// { ----- begin attribute methods -----
NS_IMETHODIMP
morkRowCellCursor::SetRow(nsIMdbEnv* mev, nsIMdbRow* ioRow) {
nsresult outErr = NS_OK;
morkRow* row = 0;
morkEnv* ev = morkEnv::FromMdbEnv(mev);
if (ev) {
row = (morkRow*)ioRow;
morkStore* store = row->GetRowSpaceStore(ev);
if (store) {
morkRowObject* rowObj = row->AcquireRowObject(ev, store);
if (rowObj) {
morkRowObject::SlotStrongRowObject((morkRowObject*)0, ev,
&mRowCellCursor_RowObject);
mRowCellCursor_RowObject = rowObj; // take this strong ref
mCursor_Seed = row->mRow_Seed;
row->GetCell(ev, mRowCellCursor_Col, &mCursor_Pos);
}
}
outErr = ev->AsErr();
}
return outErr;
}
NS_IMETHODIMP
morkRowCellCursor::GetRow(nsIMdbEnv* mev, nsIMdbRow** acqRow) {
nsresult outErr = NS_OK;
nsIMdbRow* outRow = 0;
morkEnv* ev = morkEnv::FromMdbEnv(mev);
if (ev) {
morkRowObject* rowObj = mRowCellCursor_RowObject;
if (rowObj) outRow = rowObj->AcquireRowHandle(ev);
outErr = ev->AsErr();
}
if (acqRow) *acqRow = outRow;
return outErr;
}
// } ----- end attribute methods -----
// { ----- begin cell seeking methods -----
NS_IMETHODIMP
morkRowCellCursor::SeekCell(
nsIMdbEnv* mev, // context
mdb_pos inPos, // position of cell in row sequence
mdb_column* outColumn, // column for this particular cell
nsIMdbCell** acqCell) {
NS_ASSERTION(false, "not implemented");
return NS_ERROR_NOT_IMPLEMENTED;
}
// } ----- end cell seeking methods -----
// { ----- begin cell iteration methods -----
NS_IMETHODIMP
morkRowCellCursor::NextCell( // get next cell in the row
nsIMdbEnv* mev, // context
nsIMdbCell** acqCell, // changes to the next cell in the iteration
mdb_column* outColumn, // column for this particular cell
mdb_pos* outPos) {
morkEnv* ev = morkEnv::FromMdbEnv(mev);
mdb_column col = 0;
mdb_pos pos = mRowCellCursor_Col;
if (pos < 0)
pos = 0;
else
++pos;
morkCell* cell = mRowCellCursor_RowObject->mRowObject_Row->CellAt(ev, pos);
if (cell) {
col = cell->GetColumn();
*acqCell = mRowCellCursor_RowObject->mRowObject_Row->AcquireCellHandle(
ev, cell, col, pos);
} else {
*acqCell = nullptr;
pos = -1;
}
if (outPos) *outPos = pos;
if (outColumn) *outColumn = col;
mRowCellCursor_Col = pos;
return NS_OK;
}
NS_IMETHODIMP
morkRowCellCursor::PickNextCell( // get next cell in row within filter set
nsIMdbEnv* mev, // context
nsIMdbCell* ioCell, // changes to the next cell in the iteration
const mdbColumnSet* inFilterSet, // col set of actual caller interest
mdb_column* outColumn, // column for this particular cell
mdb_pos* outPos)
// Note that inFilterSet should not have too many (many more than 10?)
// cols, since this might imply a potential excessive consumption of time
// over many cursor calls when looking for column and filter intersection.
{
NS_ASSERTION(false, "not implemented");
return NS_ERROR_NOT_IMPLEMENTED;
}
// } ----- end cell iteration methods -----
// } ===== end nsIMdbRowCellCursor methods =====
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