ProjectExplorer: Let users delete several sessions at once

Task-number: QTCREATORBUG-17668
Change-Id: I90dea6721ef8e7c1496f3a2c934f74edb62bbc96
Reviewed-by: hjk <hjk@qt.io>

src/plugins/projectexplorer/projectwelcomepage.cpp

@@ -399,7 +399,7 @@ public:
                 else if (m_activeActionRects[1].contains(pos))
                     sessionModel->renameSession(ICore::mainWindow(), sessionName);
                 else if (m_activeActionRects[2].contains(pos))
-                    sessionModel->deleteSession(sessionName);
+                    sessionModel->deleteSessions(QStringList(sessionName));
                 return true;
             }
         }

src/plugins/projectexplorer/session.cpp

@@ -792,11 +792,15 @@ bool SessionManager::renameSession(const QString &original, const QString &newNa
 /*!
     \brief Shows a dialog asking the user to confirm deleting the session \p session
 */
-bool SessionManager::confirmSessionDelete(const QString &session)
+bool SessionManager::confirmSessionDelete(const QStringList &sessions)
 {
+    const QString title = sessions.size() == 1 ? tr("Delete Session") : tr("Delete Sessions");
+    const QString question = sessions.size() == 1
+            ? tr("Delete session %1?").arg(sessions.first())
+            : tr("Delete these sessions?\n    %1").arg(sessions.join("\n    "));
     return QMessageBox::question(ICore::mainWindow(),
-                                 tr("Delete Session"),
-                                 tr("Delete session %1?").arg(session),
+                                 title,
+                                 question,
                                  QMessageBox::Yes | QMessageBox::No) == QMessageBox::Yes;
 }
 
@@ -814,6 +818,12 @@ bool SessionManager::deleteSession(const QString &session)
     return false;
 }
 
+void SessionManager::deleteSessions(const QStringList &sessions)
+{
+    for (const QString &session : sessions)
+        deleteSession(session);
+}
+
 bool SessionManager::cloneSession(const QString &original, const QString &clone)
 {
     if (!d->m_sessions.contains(original))

src/plugins/projectexplorer/session.h

@@ -63,8 +63,9 @@ public:
 
     static bool createSession(const QString &session);
 
-    static bool confirmSessionDelete(const QString &session);
+    static bool confirmSessionDelete(const QStringList &sessions);
     static bool deleteSession(const QString &session);
+    static void deleteSessions(const QStringList &sessions);
 
     static bool cloneSession(const QString &original, const QString &clone);
     static bool renameSession(const QString &original, const QString &newName);

src/plugins/projectexplorer/sessiondialog.cpp

@@ -26,6 +26,8 @@
 #include "sessiondialog.h"
 #include "session.h"
 
+#include <utils/algorithm.h>
+
 #include <QInputDialog>
 #include <QValidator>
 
@@ -131,7 +133,7 @@ SessionDialog::SessionDialog(QWidget *parent) : QDialog(parent)
     connect(m_ui.btClone, &QAbstractButton::clicked,
         m_ui.sessionView, &SessionView::cloneCurrentSession);
     connect(m_ui.btDelete, &QAbstractButton::clicked,
-        m_ui.sessionView, &SessionView::deleteCurrentSession);
+        m_ui.sessionView, &SessionView::deleteSelectedSessions);
     connect(m_ui.btSwitch, &QAbstractButton::clicked,
         m_ui.sessionView, &SessionView::switchToCurrentSession);
     connect(m_ui.btRename, &QAbstractButton::clicked,
@@ -157,21 +159,23 @@ bool SessionDialog::autoLoadSession() const
     return m_ui.autoLoadCheckBox->checkState() == Qt::Checked;
 }
 
-void SessionDialog::updateActions(const QString &session)
+void SessionDialog::updateActions(const QStringList &sessions)
 {
-    if (session.isEmpty()) {
+    if (sessions.isEmpty()) {
         m_ui.btDelete->setEnabled(false);
         m_ui.btRename->setEnabled(false);
         m_ui.btClone->setEnabled(false);
         m_ui.btSwitch->setEnabled(false);
-    } else {
-        bool isDefault = (session == QLatin1String("default"));
-        bool isActive = (session == SessionManager::activeSession());
-        m_ui.btDelete->setEnabled(!isActive && !isDefault);
-        m_ui.btRename->setEnabled(!isDefault);
-        m_ui.btClone->setEnabled(true);
-        m_ui.btSwitch->setEnabled(true);
+        return;
     }
+    const bool defaultIsSelected = sessions.contains("default");
+    const bool activeIsSelected = Utils::anyOf(sessions, [](const QString &session) {
+        return session == SessionManager::activeSession();
+    });
+    m_ui.btDelete->setEnabled(!defaultIsSelected && !activeIsSelected);
+    m_ui.btRename->setEnabled(sessions.size() == 1 && !defaultIsSelected);
+    m_ui.btClone->setEnabled(sessions.size() == 1);
+    m_ui.btSwitch->setEnabled(sessions.size() == 1);
 }
 
 } // namespace Internal

src/plugins/projectexplorer/sessiondialog.h

@@ -49,7 +49,7 @@ public:
     bool autoLoadSession() const;
 
 private:
-    void updateActions(const QString &session);
+    void updateActions(const QStringList &sessions);
 
     Ui::SessionDialog m_ui;
 };

src/plugins/projectexplorer/sessionmodel.cpp

@@ -55,7 +55,7 @@ int SessionModel::indexOfSession(const QString &session)
     return SessionManager::sessions().indexOf(session);
 }
 
-QString SessionModel::sessionAt(int row)
+QString SessionModel::sessionAt(int row) const
 {
     return SessionManager::sessions().value(row, QString());
 }
@@ -209,12 +209,12 @@ void SessionModel::cloneSession(QWidget *parent, const QString &session)
     });
 }
 
-void SessionModel::deleteSession(const QString &session)
+void SessionModel::deleteSessions(const QStringList &sessions)
 {
-    if (!SessionManager::confirmSessionDelete(session))
+    if (!SessionManager::confirmSessionDelete(sessions))
         return;
     beginResetModel();
-    SessionManager::deleteSession(session);
+    SessionManager::deleteSessions(sessions);
     endResetModel();
 }
 

src/plugins/projectexplorer/sessionmodel.h

@@ -53,7 +53,7 @@ public:
     explicit SessionModel(QObject *parent = nullptr);
 
     int indexOfSession(const QString &session);
-    QString sessionAt(int row);
+    QString sessionAt(int row) const;
 
     int rowCount(const QModelIndex &parent = QModelIndex()) const override;
     int columnCount(const QModelIndex &parent = QModelIndex()) const override;
@@ -72,7 +72,7 @@ public slots:
     void resetSessions();
     void newSession(QWidget *parent);
     void cloneSession(QWidget *parent, const QString &session);
-    void deleteSession(const QString &session);
+    void deleteSessions(const QStringList &sessions);
     void renameSession(QWidget *parent, const QString &session);
     void switchToSession(const QString &session);
 

src/plugins/projectexplorer/sessionview.cpp

@@ -27,9 +27,12 @@
 
 #include "session.h"
 
-#include <QItemSelection>
-#include <QStyledItemDelegate>
+#include <utils/algorithm.h>
+
 #include <QHeaderView>
+#include <QItemSelection>
+#include <QStringList>
+#include <QStyledItemDelegate>
 
 namespace ProjectExplorer {
 namespace Internal {
@@ -57,7 +60,7 @@ SessionView::SessionView(QWidget *parent)
 {
     setItemDelegate(new RemoveItemFocusDelegate(this));
     setSelectionBehavior(QAbstractItemView::SelectRows);
-    setSelectionMode(QAbstractItemView::SingleSelection);
+    setSelectionMode(QAbstractItemView::ExtendedSelection);
     setWordWrap(false);
     setRootIsDecorated(false);
 
@@ -74,9 +77,8 @@ SessionView::SessionView(QWidget *parent)
     connect(this, &Utils::TreeView::activated, [this](const QModelIndex &index){
         emit activated(m_sessionModel.sessionAt(index.row()));
     });
-    connect(selectionModel(), &QItemSelectionModel::currentRowChanged, [this]
-            (const QModelIndex &index) {
-        emit selected(m_sessionModel.sessionAt(index.row()));
+    connect(selectionModel(), &QItemSelectionModel::selectionChanged, [this] {
+        emit selected(selectedSessions());
     });
 
     connect(&m_sessionModel, &SessionModel::sessionSwitched,
@@ -92,9 +94,14 @@ void SessionView::createNewSession()
     m_sessionModel.newSession(this);
 }
 
-void SessionView::deleteCurrentSession()
+void SessionView::deleteSelectedSessions()
 {
-    m_sessionModel.deleteSession(currentSession());
+    deleteSessions(selectedSessions());
+}
+
+void SessionView::deleteSessions(const QStringList &sessions)
+{
+    m_sessionModel.deleteSessions(sessions);
 }
 
 void SessionView::cloneCurrentSession()
@@ -147,9 +154,18 @@ void SessionView::keyPressEvent(QKeyEvent *event)
         TreeView::keyPressEvent(event);
         return;
     }
-    const QString session = currentSession();
-    if (!session.isEmpty() && session != "default" && session != SessionManager::activeSession())
-        deleteCurrentSession();
+    const QStringList sessions = selectedSessions();
+    if (!sessions.contains("default") && !Utils::anyOf(sessions,
+            [](const QString &session) { return session == SessionManager::activeSession(); })) {
+        deleteSessions(sessions);
+    }
+}
+
+QStringList SessionView::selectedSessions() const
+{
+    return Utils::transform(selectionModel()->selectedRows(), [this](const QModelIndex &index) {
+        return m_sessionModel.sessionAt(index.row());
+    });
 }
 
 } // namespace Internal

src/plugins/projectexplorer/sessionview.h

@@ -41,7 +41,7 @@ public:
     explicit SessionView(QWidget *parent = nullptr);
 
     void createNewSession();
-    void deleteCurrentSession();
+    void deleteSelectedSessions();
     void cloneCurrentSession();
     void renameCurrentSession();
     void switchToCurrentSession();
@@ -53,13 +53,16 @@ public:
 
 signals:
     void activated(const QString &session);
-    void selected(const QString &session);
+    void selected(const QStringList &sessions);
     void sessionSwitched();
 
 private:
     void showEvent(QShowEvent* event) override;
     void keyPressEvent(QKeyEvent *event) override;
 
+    void deleteSessions(const QStringList &sessions);
+    QStringList selectedSessions() const;
+
     SessionModel m_sessionModel;
 };