/// <summary>
// RULE: A repeat can be moved wherever under
// the same repeat ancestor cc.
// It can be moved elsewhere, provided it is
// the only cc using that repeat. (change
// AF and XPaths accordingly).
// In principle, all n x cc using that repeat
// could legally be moved to the same destination,
// but we have no way to facilitate this!
/// </summary>
private void handleRepeat(Word.ContentControl copiedCC)
{
td = new TagData(copiedCC.Tag);
string repeatID = td.getRepeatID();
suppressDescendantEvents(copiedCC);
// Look in the answer file to find this repeats
// closest ancestor repeat (if any).
// It is enough to look at the XPath, so get that.
// (Actually, either way you get a qref, which is
// NOT a repeat id. )
string xpathCurrent = xppe.getXPathByID(repeatID).dataBinding.xpath;
// something like /oda:answers/oda:repeat[@qref='rpt1']/oda:row[1]/oda:repeat[@qref='rpt2']"
int index = xpathCurrent.LastIndexOf("oda:repeat");
if (index < 0)
{
log.Error("Couldn't find repeat in " + xpathCurrent);
}
string xpathSubstring = xpathCurrent.Substring(0, index);
log.Debug("xpath substring: " + xpathSubstring); //eg /oda:answers/oda:repeat[@qref='rpt1']/oda:row[1]/
// OK, find last remaining qref
int qrefIndex = xpathSubstring.LastIndexOf("qref");
Word.ContentControl rptAncestor = RepeatHelper.getYoungestRepeatAncestor(copiedCC);
if (qrefIndex < 0)
{
// No repeat ancestor, so this repeat cc can be moved anywhere
log.Debug("No repeat ancestor, so this repeat cc can be moved anywhere");
// Has it been moved into a repeat?
if (rptAncestor == null)
{
// Destination has no repeat ancestor,
// so nothing to do
return;
}
// Now change AF and XPath structure.
string destRptID = (new TagData(rptAncestor.Tag)).getRepeatID();
string destRptXPath = xppe.getXPathByID(destRptID).dataBinding.xpath;
//Office.CustomXMLPart answersPart = model.userParts[0]; // TODO: make this better
//Office.CustomXMLNode node = answersPart.SelectSingleNode(destRptXPath);
//if (node == null)
//{
// log.Error("no answer for repeat " + destRptXPath);
//}
//string toRepeat = NodeToXPath.getXPath(node);
NodeMover nm = new NodeMover();
nm.Move(xpathCurrent, destRptXPath);
return;
// TODO: Need to figure out whether to do this just for
// the repeat (and let descendants take care of themselves),
// or do it for all (and suppress action on descendant event)
// NodeMover does it for all XPaths, so unless that is changed, we're looking at suppression!
// - suppression is difficult?
// - easy to do just a single xpath, but what about answers? we move these as a tree!! leave desc behind?
// BIG QUESTION: are there things we need to do to the descendants in response to their events,
// or does this repeat logic take care of everything?
// What about in the copy case?
}
else
{
// Had a repeat ancestor, with ancestorRepeatID
string ancestorQref = xpathSubstring.Substring(qrefIndex + 6);
//log.Debug("ancestorQref: " + ancestorQref); // rpt1']/oda:row[1]/
ancestorQref = ancestorQref.Substring(0, ancestorQref.IndexOf("'"));
log.Debug("ancestorQref: " + ancestorQref);
string ancestorRepeatID = xppe.getXPathByQuestionID(ancestorQref).id;
log.Debug("Had a repeat ancestor, with ancestorRepeatID: " + ancestorRepeatID);
List<Word.ContentControl> controlsThisRepeat = getRepeatCCsUsingRepeatID(copiedCC, repeatID);
// Find the new repeat ancestor, if any
if (rptAncestor == null)
{
// It can be moved elsewhere, provided it is
// the only cc using that repeat
// Is it the only repeat cc using this repeat id?
if (controlsThisRepeat.Count == 0) // since this cc excluded from count
{
// Yes
NodeMover nm = new NodeMover();
nm.Move(xpathCurrent, "/oda:answers");
}
else
{
// This is a problem
MessageBox.Show("Your move includes a repeat content control which can't go here. Removing that repeat.");
removeButKeepContents(copiedCC);
// and enable descendant events
fabDocxState.suppressEventsForSdtID.Clear();
return;
// ie there were >1 cc using this repeat ID, and we just removed one of them!
}
}
else
{
string destRptID = (new TagData(rptAncestor.Tag)).getRepeatID();
string destRptXPath = xppe.getXPathByID(destRptID).dataBinding.xpath;
if (destRptID.Equals(ancestorRepeatID))
{
// OK, no change in ancestor.
// Nothing to do.
return;
}
else if (controlsThisRepeat.Count == 1)
{
// OK, only used once
NodeMover nm = new NodeMover();
nm.Move(xpathCurrent, destRptXPath);
}
else
{
// Not allowed
MessageBox.Show("Your move includes a repeat content control which can't go here. Removing that repeat.");
removeButKeepContents(copiedCC);
// and enable descendant events
fabDocxState.suppressEventsForSdtID.Clear();
return;
// ie there were >1 cc using this repeat ID, and we just removed one of them!
}
}
}
}
/// <summary>
// RULE: A variable cc can copied wherever.
// If its repeat ancestors change, its "vary in repeat"
// will need to change (to lowest common denominator).
// If this cc is not in any repeat,
// make the answer top level and we're done
// Otherwise, could assume its position is OK wrt
// existing repeats.
// So if anything, we just need to move it
// up the tree until
// we reach a node which contains this additional repeat.
// But we'd like this code to
// be used for both moves and copy. (Move case
// needs this constraint relaxed)
// So our algorithm finds viable positions
// (ie ancestors common to all
// repeats).
// That node and higher are candidates for new position
// Ask user to choose.
/// </summary>
protected void handleXPath(string xpathID, bool dontAskIfOkAsis)
{
xpathsXpath xp = xppe.getXPathByID(xpathID);
string questionID = xp.questionID;
// If this cc is not in any repeat,
// make the answer top level and we're done
// Otherwise, we can assume its position is OK wrt
// existing repeats.
// So if anything, we just need to move it
// up the tree until
// we reach a node which contains this additional repeat.
// But for the variable move case (handled in MoveHandler)
// an existing repeat will no longer be a constraint.
// So better to just have a single algorithm which
// finds viable positions (ie ancestors common to all
// repeats).
// 2 algorithms for doing this.
// The first: Make a list of the ancestors of the
// first repeat. Then cross off that list anything
// which isn't an ancestor of the other repeats.
// The second: Get XPath for each repeat.
// Find the shortest XPath.
// Then find the shortest substring common to each
// repeat. Then make a list out of that.
// I like the first better.
// Find all cc's in which this question is used.
QuestionHelper qh = new QuestionHelper(xppe, cpe);
List<Word.ContentControl> thisQuestionControls = qh.getControlsUsingQuestion(questionID, xpathID);
// For each such cc, find closest repeat ancestor cc (if any).
// With each such repeat, do the above algorithm.
// Find all cc's in which this question is used.
List<Word.ContentControl> relevantRepeats = new List<Word.ContentControl>();
foreach (Word.ContentControl ccx in thisQuestionControls)
{
Word.ContentControl rpt = RepeatHelper.getYoungestRepeatAncestor(ccx);
if (rpt == null)
{
// make the answer top level and we're done.
// That means moving it in AF, and XPaths part.
log.Info("question " + questionID + " used at top level, so moving it there.");
NodeMover nm = new NodeMover();
nm.Move(xp.dataBinding.xpath, "/oda:answers");
nm.adjustBinding(thisQuestionControls, "/oda:answers", questionID);
return;
}
else
{
relevantRepeats.Add(rpt);
}
}
Office.CustomXMLPart answersPart = model.answersPart; // userParts[0]; // TODO: make this better
// That node and higher are candidates for new position
// Ask user to choose, or cancel (and remove this cc,
// but what about any impending child add events?? Maybe
// need a cancel state)
this.questionsPart = model.questionsPart;
questionnaire = new questionnaire();
questionnaire.Deserialize(questionsPart.XML, out questionnaire);
FormMoveQuestion formMoveQuestion = new FormMoveQuestion(answersPart, relevantRepeats, questionnaire, questionID, xppe);
if (dontAskIfOkAsis
&& formMoveQuestion.OkAsis() )
{
// Do nothing
}
else
{
formMoveQuestion.ShowDialog();
formMoveQuestion.moveIfNecessary(questionID, xp, answersPart);
//string varyInRepeat = formMoveQuestion.getVaryingRepeat();
//if (varyInRepeat == null)
//{
// // make the answer top level and we're done.
// NodeMover nm = new NodeMover();
// nm.Move(xp.dataBinding.xpath, "/oda:answers");
// nm.adjustBinding(thisQuestionControls, "/oda:answers", questionID);
//}
//else
//{
// // Move it to the selected repeat
// // get the node corresponding to the repeat's row
// Office.CustomXMLNode node = answersPart.SelectSingleNode("//oda:repeat[@qref='" + varyInRepeat + "']/oda:row[1]");
// if (node == null)
// {
// log.Error("no node for nested repeat " + varyInRepeat);
// }
// string toRepeat = NodeToXPath.getXPath(node);
// NodeMover nm = new NodeMover();
// nm.Move(xp.dataBinding.xpath, toRepeat);
// nm.adjustBinding(thisQuestionControls, toRepeat, questionID);
//}
}
formMoveQuestion.Dispose();
}