Search for web map by keyword

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// [WriteFile Name=SearchForWebmap, Category=CloudAndPortal]
// [Legal]
// Copyright 2016 ESRI
//
// All rights reserved under the copyright laws of the United States
// and applicable international laws, treaties, and conventions.
//
// You may freely redistribute and use this sample code, with or
// without modification, provided you include the original copyright
// notice and use restrictions.
//
// See the Sample code usage restrictions document for further information.
// [Legal]

#ifdef PCH_BUILD
#include "pch.hpp"
#endif // PCH_BUILD

#include "AuthenticationManager.h"
#include "Map.h"
#include "MapQuickView.h"
#include "Basemap.h"
#include "Portal.h"
#include "PortalItem.h"
#include "PortalItemListModel.h"
#include "PortalQueryParametersForItems.h"
#include "SearchForWebmap.h"

#include <QDate>

using namespace Esri::ArcGISRuntime;

SearchForWebmap::SearchForWebmap(QQuickItem* parent /* = nullptr */):
  QQuickItem(parent),
  m_portal(new Portal(this))
{
  AuthenticationManager::instance()->setCredentialCacheEnabled(false);
}

SearchForWebmap::~SearchForWebmap() = default;

void SearchForWebmap::init()
{
  qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");
  qmlRegisterType<SearchForWebmap>("Esri.Samples", 1, 0, "SearchForWebmapSample");
}

void SearchForWebmap::componentComplete()
{
  QQuickItem::componentComplete();

  if (m_portal)
  {
    connect(m_portal, &Portal::loadStatusChanged, this, [this]()
    {
      m_portalLoaded = m_portal->loadStatus() == LoadStatus::Loaded;
      emit portalLoadedChanged();
    });

    //! [SearchForWebmap CPP Portal find items completed]
    connect(m_portal, &Portal::findItemsCompleted, this, [this](PortalQueryResultSetForItems *webmapResults)
    {
      m_webmapResults = webmapResults;
      m_webmaps = m_webmapResults->itemResults();
      emit webmapsChanged();
      emit hasMoreResultsChanged();
    });
    //! [SearchForWebmap CPP Portal find items completed]

    m_portal->load();
  }

  // find QML MapView component
  m_mapView = findChild<MapQuickView*>("mapView");
  if(m_mapView)
    m_mapView->setWrapAroundMode(WrapAroundMode::Disabled);
}

bool SearchForWebmap::portalLoaded() const
{
  return m_portalLoaded;
}

QAbstractListModel* SearchForWebmap::webmaps() const
{
  return m_webmaps;
}

bool SearchForWebmap::hasMoreResults() const
{
  return m_webmapResults && m_webmapResults->nextQueryParameters().startIndex() > -1;
}

QString SearchForWebmap::mapLoadError() const
{
  return m_mapLoadeError;
}

void SearchForWebmap::search(const QString& keyword)
{
  if (!m_portal)
    return;

  //! [SearchForWebmap CPP Portal find items]
  // webmaps authored prior to July 2nd, 2014 are not supported
  // so search only from that date to the current time (in milliseconds)
  QString fromDate = QString("000000%1").arg(QDateTime(QDate(2014, 7, 2)).toMSecsSinceEpoch());
  QString toDate = QString("000000%1").arg(QDateTime::currentDateTime().toMSecsSinceEpoch());

  PortalQueryParametersForItems query;
  query.setSearchString(QString("tags:\"%1\" AND +uploaded:[%2 TO %3]")
                        .arg(keyword, fromDate, toDate));
  query.setTypes(QList<PortalItemType>() << PortalItemType::WebMap);

  m_portal->findItems(query);
  //! [SearchForWebmap CPP Portal find items]

  if(m_mapView)
    m_mapView->setVisible(false);
}

void SearchForWebmap::searchNext()
{
  if (!m_webmapResults || !m_portal)
    return;

  //! [Portal find with nextQueryParameters]
  PortalQueryParametersForItems nextQuery = m_webmapResults->nextQueryParameters();
  // check whether the startIndex of the new query is valid
  if (nextQuery.startIndex() != -1)
    m_portal->findItems(nextQuery);
  //! [Portal find with nextQueryParameters]
}

void SearchForWebmap::loadSelectedWebmap(int index)
{
  if (!m_webmaps)
     return;

   if (m_map)
     delete m_map;

   // create map from portal item
   m_map = new Map(m_webmaps->at(index), this);

   connect(m_map,&Map::errorOccurred, this, [this]()
   {
     m_mapLoadeError = m_map->loadError().message();
     emit mapLoadErrorChanged();
   });

   // set map on mapview
   m_mapView->setMap(m_map);
   m_mapView->setVisible(true);
}

void SearchForWebmap::errorAccepted()
{
  m_mapLoadeError.clear();
  emit mapLoadErrorChanged();
}