Help: Make it possible to duplicate search view

Change-Id: I6fac9f721fc3e2f877d9f600f9dea6650558516a
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>

src/plugins/help/helpplugin.cpp

@@ -315,8 +315,8 @@ void HelpPlugin::setupUi()
     shortcutMap.insert(QLatin1String(Constants::HELP_CONTENTS), cmd);
 
     auto searchItem = new SearchSideBarItem;
-    connect(searchItem, SIGNAL(linkActivated(QUrl)), m_centralWidget,
+    connect(searchItem, &SearchSideBarItem::linkActivated,
-        SLOT(setSourceFromSearch(QUrl)));
+            m_centralWidget, &HelpWidget::openFromSearch);
 
      action = new QAction(tr("Activate Help Search View"), m_splitter);
      cmd = ActionManager::registerAction(action, Constants::HELP_SEARCH, modecontext);

src/plugins/help/helpwidget.cpp

@@ -453,14 +453,18 @@ void HelpWidget::setSource(const QUrl &url)
     viewer->setFocus(Qt::OtherFocusReason);
 }
 
-void HelpWidget::setSourceFromSearch(const QUrl &url)
+void HelpWidget::openFromSearch(const QUrl &url, bool newPage)
 {
+    if (newPage)
+        OpenPagesManager::instance().createPageFromSearch(url);
+    else {
         HelpViewer* viewer = currentViewer();
         QTC_ASSERT(viewer, return);
         connect(viewer, &HelpViewer::loadFinished, this, &HelpWidget::highlightSearchTerms);
         viewer->setSource(url);
         viewer->setFocus(Qt::OtherFocusReason);
     }
+}
 
 void HelpWidget::closeEvent(QCloseEvent *)
 {

src/plugins/help/helpwidget.h

@@ -81,12 +81,12 @@ public:
     HelpViewer *viewerAt(int index) const;
 
     void open(const QUrl &url, bool newPage = false);
+    void openFromSearch(const QUrl &url, bool newPage = false);
     void showTopicChooser(const QMap<QString, QUrl> &links, const QString &key,
                           bool newPage = false);
 
 public slots:
     void setSource(const QUrl &url);
-    void setSourceFromSearch(const QUrl &url);
     void updateCloseButton();
 
 protected:

src/plugins/help/searchwidget.cpp

@@ -104,7 +104,7 @@ void SearchWidget::showEvent(QShowEvent *event)
         vLayout->setMargin(0);
         vLayout->setSpacing(0);
 
-        searchEngine = (&LocalHelpManager::helpEngine())->searchEngine();
+        searchEngine = new QHelpSearchEngine(&LocalHelpManager::helpEngine(), this);
 
         Utils::StyledBar *toolbar = new Utils::StyledBar(this);
         toolbar->setSingleRow(false);
@@ -129,8 +129,10 @@ void SearchWidget::showEvent(QShowEvent *event)
         setFocusProxy(queryWidget);
 
         connect(queryWidget, SIGNAL(search()), this, SLOT(search()));
-        connect(resultWidget, SIGNAL(requestShowLink(QUrl)), this,
+        connect(resultWidget, &QHelpSearchResultWidget::requestShowLink, this,
-            SIGNAL(linkActivated(QUrl)));
+                [this](const QUrl &url) {
+                    emit linkActivated(url, false/*newPage*/);
+                });
 
         connect(searchEngine, SIGNAL(searchingStarted()), this,
             SLOT(searchingStarted()));
@@ -224,7 +226,7 @@ bool SearchWidget::eventFilter(QObject *o, QEvent *e)
             bool controlPressed = me->modifiers() & Qt::ControlModifier;
             if ((me->button() == Qt::LeftButton && controlPressed)
                 || (me->button() == Qt::MidButton)) {
-                    OpenPagesManager::instance().createPageFromSearch(link);
+                    emit linkActivated(link, true/*newPage*/);
             }
         }
     }
@@ -261,9 +263,9 @@ void SearchWidget::contextMenuEvent(QContextMenuEvent *contextMenuEvent)
 
     QAction *usedAction = menu.exec(mapToGlobal(contextMenuEvent->pos()));
     if (usedAction == openLink)
-        emit linkActivated(link);
+        emit linkActivated(link, false/*newPage*/);
     else if (usedAction == openLinkInNewTab)
-        OpenPagesManager::instance().createPageFromSearch(link);
+        emit linkActivated(link, true/*newPage*/);
     else if (usedAction == copyAnchorAction)
         QApplication::clipboard()->setText(link.toString());
 }
@@ -274,7 +276,7 @@ SearchSideBarItem::SearchSideBarItem()
     : SideBarItem(new SearchWidget, QLatin1String(Constants::HELP_SEARCH))
 {
     widget()->setWindowTitle(tr(Constants::SB_SEARCH));
-    connect(widget(), SIGNAL(linkActivated(QUrl)), this, SIGNAL(linkActivated(QUrl)));
+    connect(widget(), SIGNAL(linkActivated(QUrl,bool)), this, SIGNAL(linkActivated(QUrl,bool)));
 }
 
 QList<QToolButton *> SearchSideBarItem::createToolBarWidgets()

src/plugins/help/searchwidget.h

@@ -57,7 +57,7 @@ public:
     QList<QToolButton *> createToolBarWidgets();
 
 signals:
-    void linkActivated(const QUrl &url);
+    void linkActivated(const QUrl &url, bool newPage);
 };
 
 class SearchWidget : public QWidget
@@ -73,7 +73,7 @@ public:
     void resetZoom();
 
 signals:
-    void linkActivated(const QUrl &link);
+    void linkActivated(const QUrl &link, bool newPage);
 
 protected:
     void showEvent(QShowEvent *event);