Enable incremental updates in PlaceSearchModel

This way pages can be changed without resetting the model.
To achieve this, new members into QPlaceSearchRequestPrivate
are introduced, to keep the relationship between a request
for one page, and the previous or the next page.
In this way sparse population of the model becomes possible.

Change-Id: Ic8db0281408f3500ba83f78c7e152ee0b68cd099
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@qt.io>

1 files changed, 10 insertions, 0 deletions

diff --git a/src/plugins/geoservices/nokia/placesv2/qplacesearchreplyhere.cpp b/src/plugins/geoservices/nokia/placesv2/qplacesearchreplyhere.cpp
index 9808b539..28aa930f 100644
--- a/src/plugins/geoservices/nokia/placesv2/qplacesearchreplyhere.cpp
+++ b/src/plugins/geoservices/nokia/placesv2/qplacesearchreplyhere.cpp
@@ -46,6 +46,7 @@
 #include <QtLocation/QPlaceIcon>
 #include <QtLocation/QPlaceResult>
 #include <QtLocation/QPlaceProposedSearchResult>
+#include <QtLocation/private/qplacesearchrequest_p.h>
 
 #include <QtCore/QDebug>
 
@@ -113,15 +114,24 @@ void QPlaceSearchReplyHere::replyFinished()
             results.append(parseSearchResult(item));
     }
 
+    QPlaceSearchRequest r_orig = request();
+    QPlaceSearchRequestPrivate *rpimpl_orig = QPlaceSearchRequestPrivate::get(r_orig);
+
     if (resultsObject.contains(QStringLiteral("next"))) {
         QPlaceSearchRequest request;
         request.setSearchContext(QUrl(resultsObject.value(QStringLiteral("next")).toString()));
+        QPlaceSearchRequestPrivate *rpimpl = QPlaceSearchRequestPrivate::get(request);
+        rpimpl->related = true;
+        rpimpl->page = rpimpl_orig->page + 1;
         setNextPageRequest(request);
     }
 
     if (resultsObject.contains(QStringLiteral("previous"))) {
         QPlaceSearchRequest request;
         request.setSearchContext(QUrl(resultsObject.value(QStringLiteral("previous")).toString()));
+        QPlaceSearchRequestPrivate *rpimpl = QPlaceSearchRequestPrivate::get(request);
+        rpimpl->related = true;
+        rpimpl->page = rpimpl_orig->page - 1;
         setPreviousPageRequest(request);
     }