VariableChooser: Rework

Allow multiple expanders to be registered for lineedits, e.g. a
local and the global ones, and actually show them.

Use a tree view in the chooser for somewhat more structured display.

Change-Id: I769f92144e5249f45e54381de52aa6973eb20118
Reviewed-by: Tobias Hunger <tobias.hunger@theqtcompany.com>

src/libs/utils/macroexpander.cpp

@@ -49,6 +49,7 @@ public:
     QHash<QByteArray, MacroExpander::StringFunction> m_map;
     QHash<QByteArray, MacroExpander::PrefixFunction> m_prefixMap;
     QMap<QByteArray, QString> m_descriptions;
+    QString m_displayName;
 };
 
 } // Internal
@@ -320,4 +321,37 @@ QString MacroExpander::variableDescription(const QByteArray &variable)
     return d->m_descriptions.value(variable);
 }
 
+QString MacroExpander::displayName() const
+{
+    return d->m_displayName;
+}
+
+void MacroExpander::setDisplayName(const QString &displayName)
+{
+    d->m_displayName = displayName;
+}
+
+
+class GlobalMacroExpander : public MacroExpander
+{
+    Q_DECLARE_TR_FUNCTIONS(Utils::MacroExpander)
+
+public:
+    GlobalMacroExpander()
+    {
+        setDisplayName(tr("Global variables"));
+        registerPrefix("Env", tr("Access environment variables."),
+           [](const QString &value) { return QString::fromLocal8Bit(qgetenv(value.toLocal8Bit())); });
+    }
+};
+
+/*!
+ * Returns the expander for globally registered variables.
+ */
+MacroExpander *globalMacroExpander()
+{
+    static GlobalMacroExpander theGlobalExpander;
+    return &theGlobalExpander;
+}
+
 } // namespace Utils

src/libs/utils/macroexpander.h

@@ -70,6 +70,9 @@ public:
     QList<QByteArray> variables();
     QString variableDescription(const QByteArray &variable);
 
+    QString displayName() const;
+    void setDisplayName(const QString &displayName);
+
 private:
     MacroExpander(const MacroExpander &) Q_DECL_EQ_DELETE;
     void operator=(const MacroExpander &) Q_DECL_EQ_DELETE;
@@ -77,6 +80,8 @@ private:
     Internal::MacroExpanderPrivate *d;
 };
 
+QTCREATOR_UTILS_EXPORT MacroExpander *globalMacroExpander();
+
 } // namespace Utils
 
 #endif // UTILS_MACROEXPANDER_H

src/plugins/baremetal/baremetaldeviceconfigurationwidget.cpp

@@ -79,9 +79,9 @@ BareMetalDeviceConfigurationWidget::BareMetalDeviceConfigurationWidget(
     formLayout->addRow(tr("Init commands:"), m_gdbInitCommandsTextEdit);
     formLayout->addRow(tr("Reset commands:"), m_gdbResetCommandsTextEdit);
 
-    VariableChooser::addVariableSupport(m_gdbResetCommandsTextEdit);
+    auto chooser = new VariableChooser(this);
-    VariableChooser::addVariableSupport(m_gdbInitCommandsTextEdit);
+    chooser->addSupportedWidget(m_gdbResetCommandsTextEdit);
-    (void)new VariableChooser(this);
+    chooser->addSupportedWidget(m_gdbInitCommandsTextEdit);
 
     connect(m_gdbHostLineEdit, SIGNAL(editingFinished()), SLOT(hostnameChanged()));
     connect(m_gdbPortSpinBox, SIGNAL(valueChanged(int)), SLOT(portChanged()));

src/plugins/baremetal/baremetaldeviceconfigurationwizardpages.cpp

@@ -88,9 +88,9 @@ BareMetalDeviceConfigurationWizardSetupPage::BareMetalDeviceConfigurationWizardS
     connect(m_gdbResetCommandsTextEdit, SIGNAL(textChanged()), SIGNAL(completeChanged()));
     connect(m_gdbInitCommandsPlainTextEdit, SIGNAL(textChanged()), SIGNAL(completeChanged()));
 
-    VariableChooser::addVariableSupport(m_gdbResetCommandsTextEdit);
+    auto chooser = new VariableChooser(this);
-    VariableChooser::addVariableSupport(m_gdbInitCommandsPlainTextEdit);
+    chooser->addSupportedWidget(m_gdbResetCommandsTextEdit);
-    (void)new VariableChooser(this);
+    chooser->addSupportedWidget(m_gdbInitCommandsPlainTextEdit);
 }
 
 void BareMetalDeviceConfigurationWizardSetupPage::initializePage()

src/plugins/cmakeprojectmanager/cmakeproject.cpp

@@ -64,7 +64,6 @@
 #include <coreplugin/infobar.h>
 #include <coreplugin/documentmanager.h>
 #include <coreplugin/editormanager/editormanager.h>
-#include <coreplugin/variablemanager.h>
 
 #include <QDebug>
 #include <QDir>

src/plugins/coreplugin/coreplugin.pro

@@ -53,7 +53,6 @@ SOURCES += corejsextensions.cpp \
     progressmanager/futureprogress.cpp \
     statusbarwidget.cpp \
     coreplugin.cpp \
-    variablemanager.cpp \
     modemanager.cpp \
     basefilewizard.cpp \
     basefilewizardfactory.cpp \
@@ -165,7 +164,6 @@ HEADERS += corejsextensions.h \
     core_global.h \
     statusbarwidget.h \
     coreplugin.h \
-    variablemanager.h \
     modemanager.h \
     basefilewizard.h \
     basefilewizardfactory.h \

src/plugins/coreplugin/coreplugin.qbs

@@ -100,7 +100,6 @@ QtcPlugin {
             "textdocument.cpp", "textdocument.h",
             "toolsettings.cpp", "toolsettings.h",
             "variablechooser.cpp", "variablechooser.h",
-            "variablemanager.cpp", "variablemanager.h",
             "vcsmanager.cpp", "vcsmanager.h",
             "versiondialog.cpp", "versiondialog.h",
             "windowsupport.cpp", "windowsupport.h"

src/plugins/coreplugin/dialogs/externaltoolconfig.cpp

@@ -33,13 +33,13 @@
 
 #include <utils/algorithm.h>
 #include <utils/hostosinfo.h>
+#include <utils/macroexpander.h>
 #include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>
 #include <utils/fancylineedit.h>
 
 #include <coreplugin/coreconstants.h>
 #include <coreplugin/variablechooser.h>
-#include <coreplugin/variablemanager.h>
 
 #include <QTextStream>
 #include <QMimeData>
@@ -410,10 +410,11 @@ ExternalToolConfig::ExternalToolConfig(QWidget *parent) :
     connect(ui->toolTree->selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)),
             this, SLOT(handleCurrentChanged(QModelIndex,QModelIndex)));
 
-    Core::VariableChooser::addVariableSupport(ui->executable->lineEdit());
+    auto chooser = new VariableChooser(this);
-    Core::VariableChooser::addVariableSupport(ui->arguments);
+    chooser->addSupportedWidget(ui->executable->lineEdit());
-    Core::VariableChooser::addVariableSupport(ui->workingDirectory->lineEdit());
+    chooser->addSupportedWidget(ui->arguments);
-    Core::VariableChooser::addVariableSupport(ui->inputText);
+    chooser->addSupportedWidget(ui->workingDirectory->lineEdit());
+    chooser->addSupportedWidget(ui->inputText);
 
     connect(ui->description, SIGNAL(editingFinished()), this, SLOT(updateCurrentItem()));
     connect(ui->executable, SIGNAL(editingFinished()), this, SLOT(updateCurrentItem()));
@@ -441,7 +442,6 @@ ExternalToolConfig::ExternalToolConfig(QWidget *parent) :
 
     showInfoForItem(QModelIndex());
 
-    new VariableChooser(this);
 }
 
 ExternalToolConfig::~ExternalToolConfig()
@@ -595,5 +595,5 @@ void ExternalToolConfig::addCategory()
 void ExternalToolConfig::updateEffectiveArguments()
 {
     ui->arguments->setToolTip(Utils::QtcProcess::expandMacros(ui->arguments->text(),
-            globalMacroExpander()));
+            Utils::globalMacroExpander()));
 }

src/plugins/coreplugin/editormanager/editormanager.cpp

@@ -59,7 +59,6 @@
 #include <coreplugin/outputpanemanager.h>
 #include <coreplugin/rightpane.h>
 #include <coreplugin/settingsdatabase.h>
-#include <coreplugin/variablemanager.h>
 #include <coreplugin/vcsmanager.h>
 
 #include <extensionsystem/pluginmanager.h>
@@ -67,6 +66,7 @@
 #include <utils/algorithm.h>
 #include <utils/fileutils.h>
 #include <utils/hostosinfo.h>
+#include <utils/macroexpander.h>
 #include <utils/qtcassert.h>
 
 #include <QClipboard>
@@ -87,6 +87,8 @@
 #include <QPushButton>
 #include <QSplitter>
 
+using namespace Utils;
+
 enum { debugEditorManager=0 };
 
 static const char kCurrentDocumentPrefix[] = "CurrentDocument";

src/plugins/coreplugin/externaltool.cpp

@@ -33,7 +33,6 @@
 #include "actionmanager/actionmanager.h"
 #include "actionmanager/actioncontainer.h"
 #include "coreconstants.h"
-#include "variablemanager.h"
 
 #include <app/app_version.h>
 #include <coreplugin/icore.h>
@@ -41,8 +40,10 @@
 #include <coreplugin/documentmanager.h>
 #include <coreplugin/editormanager/editormanager.h>
 #include <coreplugin/editormanager/ieditor.h>
-#include <utils/qtcassert.h>
+
 #include <utils/fileutils.h>
+#include <utils/macroexpander.h>
+#include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>
 
 #include <QCoreApplication>
@@ -54,6 +55,7 @@
 
 #include <QDebug>
 
+using namespace Utils;
 using namespace Core;
 using namespace Core::Internal;
 

src/plugins/coreplugin/jsexpander.cpp

@@ -30,8 +30,8 @@
 #include "jsexpander.h"
 
 #include "corejsextensions.h"
-#include "variablemanager.h"
 
+#include <utils/macroexpander.h>
 #include <utils/qtcassert.h>
 
 #include <QCoreApplication>
@@ -90,7 +90,7 @@ QString JsExpander::evaluate(const QString &expression, QString *errorMessage)
 JsExpander::JsExpander()
 {
     d = new Internal::JsExpanderPrivate;
-    globalMacroExpander()->registerPrefix("JS",
+    Utils::globalMacroExpander()->registerPrefix("JS",
         QCoreApplication::translate("Core::JsExpander",
                                     "Evaluate simple Javascript statements.\n"
                                     "The statements may not contain '{' nor '}' characters."),

src/plugins/coreplugin/locator/executefilter.cpp

@@ -32,7 +32,7 @@
 
 #include <coreplugin/icore.h>
 #include <coreplugin/messagemanager.h>
-#include <coreplugin/variablemanager.h>
+#include <utils/macroexpander.h>
 
 #include <QMessageBox>
 
@@ -91,9 +91,9 @@ void ExecuteFilter::accept(LocatorFilterEntry selection) const
         p->m_commandHistory.prepend(value);
 
     bool found;
-    QString workingDirectory = globalMacroExpander()->value("CurrentDocument:Path", &found);
+    QString workingDirectory = Utils::globalMacroExpander()->value("CurrentDocument:Path", &found);
     if (!found || workingDirectory.isEmpty())
-        workingDirectory = globalMacroExpander()->value("CurrentProject:Path", &found);
+        workingDirectory = Utils::globalMacroExpander()->value("CurrentProject:Path", &found);
 
     ExecuteData d;
     d.workingDirectory = workingDirectory;

src/plugins/coreplugin/mainwindow.cpp

@@ -45,7 +45,6 @@
 #include "outputpanemanager.h"
 #include "plugindialog.h"
 #include "vcsmanager.h"
-#include "variablemanager.h"
 #include "versiondialog.h"
 #include "statusbarmanager.h"
 #include "id.h"

src/plugins/coreplugin/variablechooser.cpp

@@ -29,67 +29,36 @@
 ****************************************************************************/
 
 #include "variablechooser.h"
-#include "variablemanager.h"
 #include "coreconstants.h"
 
 #include <utils/fancylineedit.h> // IconButton
+#include <utils/macroexpander.h>
+#include <utils/treemodel.h>
 #include <utils/qtcassert.h>
 
 #include <QApplication>
+#include <QAbstractItemModel>
+#include <QHeaderView>
 #include <QLabel>
 #include <QLineEdit>
-#include <QListWidget>
 #include <QListWidgetItem>
 #include <QPlainTextEdit>
 #include <QPointer>
 #include <QTextEdit>
 #include <QTimer>
+#include <QTreeView>
 #include <QVBoxLayout>
+#include <QVector>
+
+using namespace Utils;
 
 namespace Core {
 namespace Internal {
 
-/*!
- * \internal
- */
 class VariableChooserPrivate : public QObject
 {
-    Q_OBJECT
-
 public:
-    VariableChooserPrivate(VariableChooser *parent)
+    VariableChooserPrivate(VariableChooser *parent);
-      : q(parent),
-        m_defaultDescription(tr("Select a variable to insert.")),
-        m_lineEdit(0),
-        m_textEdit(0),
-        m_plainTextEdit(0)
-    {
-        m_variableList = new QListWidget(q);
-        m_variableList->setAttribute(Qt::WA_MacSmallSize);
-        m_variableList->setAttribute(Qt::WA_MacShowFocusRect, false);
-        foreach (const QByteArray &variable, globalMacroExpander()->variables())
-            m_variableList->addItem(QString::fromLatin1(variable));
-
-        m_variableDescription = new QLabel(q);
-        m_variableDescription->setText(m_defaultDescription);
-        m_variableDescription->setMinimumSize(QSize(0, 60));
-        m_variableDescription->setAlignment(Qt::AlignLeft|Qt::AlignTop);
-        m_variableDescription->setWordWrap(true);
-        m_variableDescription->setAttribute(Qt::WA_MacSmallSize);
-
-        QVBoxLayout *verticalLayout = new QVBoxLayout(q);
-        verticalLayout->setContentsMargins(3, 3, 3, 12);
-        verticalLayout->addWidget(m_variableList);
-        verticalLayout->addWidget(m_variableDescription);
-
-        connect(m_variableList, SIGNAL(currentTextChanged(QString)),
-            this, SLOT(updateDescription(QString)));
-        connect(m_variableList, SIGNAL(itemActivated(QListWidgetItem*)),
-            this, SLOT(handleItemActivated(QListWidgetItem*)));
-        connect(qApp, SIGNAL(focusChanged(QWidget*,QWidget*)),
-            this, SLOT(updateCurrentEditor(QWidget*,QWidget*)));
-        updateCurrentEditor(0, qApp->focusWidget());
-    }
 
     void createIconButton()
     {
@@ -97,30 +66,140 @@ public:
         m_iconButton->setPixmap(QPixmap(QLatin1String(":/core/images/replace.png")));
         m_iconButton->setToolTip(tr("Insert variable"));
         m_iconButton->hide();
-        connect(m_iconButton, SIGNAL(clicked()), this, SLOT(updatePositionAndShow()));
+        connect(m_iconButton.data(), static_cast<void(QAbstractButton::*)(bool)>(&QAbstractButton::clicked),
+                this, &VariableChooserPrivate::updatePositionAndShow);
     }
 
-public slots:
+    void updateDescription(const QModelIndex &index);
-    void updateDescription(const QString &variable);
     void updateCurrentEditor(QWidget *old, QWidget *widget);
-    void handleItemActivated(QListWidgetItem *item);
+    void handleItemActivated(const QModelIndex &index);
     void insertVariable(const QString &variable);
-    void updatePositionAndShow();
+    void updatePositionAndShow(bool);
 
-public:
     QWidget *currentWidget();
 
+public:
     VariableChooser *q;
-    QString m_defaultDescription;
+    TreeModel m_model;
+
     QPointer<QLineEdit> m_lineEdit;
     QPointer<QTextEdit> m_textEdit;
     QPointer<QPlainTextEdit> m_plainTextEdit;
     QPointer<Utils::IconButton> m_iconButton;
 
-    QListWidget *m_variableList;
+    QTreeView *m_variableTree;
     QLabel *m_variableDescription;
+    QString m_defaultDescription;
+    QByteArray m_currentVariableName; // Prevent recursive insertion of currently expanded item
 };
 
+class VariableItem : public TreeItem
+{
+public:
+    VariableItem()
+    {}
+
+    QVariant data(int column, int role) const
+    {
+        if (role == Qt::DisplayRole || role == Qt::EditRole) {
+            if (column == 0)
+                return m_display;
+        }
+        if (role == Qt::ToolTipRole)
+            return m_description;
+
+        return QVariant();
+    }
+
+public:
+    QString m_display;
+    QString m_description;
+};
+
+class VariableGroupItem : public TreeItem
+{
+public:
+    VariableGroupItem(VariableChooserPrivate *chooser)
+        : m_chooser(chooser), m_expander(0)
+    {
+        setLazy(true);
+    }
+
+    bool ensureExpander() const
+    {
+        if (!m_expander)
+            m_expander = m_provider();
+        return m_expander != 0;
+    }
+
+    QVariant data(int column, int role) const
+    {
+        if (role == Qt::DisplayRole || role == Qt::EditRole) {
+            if (column == 0 && ensureExpander())
+                return m_expander->displayName();
+        }
+        return QVariant();
+    }
+
+    void populate()
+    {
+        if (ensureExpander()) {
+            foreach (const QByteArray &variable, m_expander->variables()) {
+                auto item = new VariableItem;
+                item->m_display = QString::fromLatin1(variable);
+                item->m_description = m_expander->variableDescription(variable);
+                if (variable == m_chooser->m_currentVariableName)
+                    item->setFlags(Qt::ItemIsSelectable); // not ItemIsEnabled
+                appendChild(item);
+            }
+        }
+    }
+
+public:
+    VariableChooserPrivate *m_chooser; // Not owned.
+    MacroExpanderProvider m_provider;
+    mutable MacroExpander *m_expander; // Not owned.
+    QString m_displayName;
+};
+
+VariableChooserPrivate::VariableChooserPrivate(VariableChooser *parent)
+    : q(parent),
+      m_lineEdit(0),
+      m_textEdit(0),
+      m_plainTextEdit(0)
+{
+    m_defaultDescription = VariableChooser::tr("Select a variable to insert.");
+
+    m_variableTree = new QTreeView(q);
+    m_variableTree->setAttribute(Qt::WA_MacSmallSize);
+    m_variableTree->setAttribute(Qt::WA_MacShowFocusRect, false);
+    m_variableTree->setModel(&m_model);
+    m_variableTree->header()->hide();
+    m_variableTree->header()->setStretchLastSection(true);
+
+    m_variableDescription = new QLabel(q);
+    m_variableDescription->setText(m_defaultDescription);
+    m_variableDescription->setMinimumSize(QSize(0, 60));
+    m_variableDescription->setAlignment(Qt::AlignLeft|Qt::AlignTop);
+    m_variableDescription->setWordWrap(true);
+    m_variableDescription->setAttribute(Qt::WA_MacSmallSize);
+
+    QVBoxLayout *verticalLayout = new QVBoxLayout(q);
+    verticalLayout->setContentsMargins(3, 3, 3, 12);
+    verticalLayout->addWidget(m_variableTree);
+    verticalLayout->addWidget(m_variableDescription);
+
+    //        connect(m_variableList, &QTreeView::currentChanged,
+    //            this, &VariableChooserPrivate::updateDescription);
+    connect(m_variableTree, &QTreeView::clicked,
+            this, &VariableChooserPrivate::updateDescription);
+    connect(m_variableTree, &QTreeView::activated,
+            this, &VariableChooserPrivate::handleItemActivated);
+    connect(qobject_cast<QApplication *>(qApp), &QApplication::focusChanged,
+            this, &VariableChooserPrivate::updateCurrentEditor);
+    updateCurrentEditor(0, qApp->focusWidget());
+}
+
 } // namespace Internal
 
 using namespace Internal;
@@ -140,8 +219,7 @@ using namespace Internal;
  *
  * The variable chooser monitors focus changes of all children of its parent widget.
  * When a text control gets focus, the variable chooser checks if it has variable support set,
- * either through the addVariableSupport() function or by manually setting the
+ * either through the addVariableSupport() function. If the control supports variables,
- * custom kVariableSupportProperty on the control. If the control supports variables,
  * a tool button which opens the variable chooser is shown in it while it has focus.
  *
  * Supported text controls are QLineEdit, QTextEdit and QPlainTextEdit.
@@ -159,13 +237,15 @@ using namespace Internal;
  */
 
 /*!
+ * \internal
  * \variable VariableChooser::kVariableSupportProperty
  * Property name that is checked for deciding if a widget supports \QC variables.
  * Can be manually set with
  * \c{textcontrol->setProperty(VariableChooser::kVariableSupportProperty, true)}
  * \sa addVariableSupport()
  */
-const char VariableChooser::kVariableSupportProperty[] = "QtCreator.VariableSupport";
+const char kVariableSupportProperty[] = "QtCreator.VariableSupport";
+const char kVariableNameProperty[] = "QtCreator.VariableName";
 
 /*!
  * Creates a variable chooser that tracks all children of \a parent for variable support.
@@ -179,7 +259,8 @@ VariableChooser::VariableChooser(QWidget *parent) :
     setWindowTitle(tr("Variables"));
     setWindowFlags(Qt::Tool | Qt::WindowStaysOnTopHint);
     setFocusPolicy(Qt::StrongFocus);
-    setFocusProxy(d->m_variableList);
+    setFocusProxy(d->m_variableTree);
+    addMacroExpanderProvider([]() { return globalMacroExpander(); });
 }
 
 /*!
@@ -191,26 +272,30 @@ VariableChooser::~VariableChooser()
     delete d;
 }
 
+void VariableChooser::addMacroExpanderProvider(const MacroExpanderProvider &provider)
+{
+    auto *item = new VariableGroupItem(d);
+    item->m_provider = provider;
+    d->m_model.rootItem()->prependChild(item);
+}
+
 /*!
  * Marks the control as supporting variables.
  * \sa kVariableSupportProperty
  */
-void VariableChooser::addVariableSupport(QWidget *textcontrol)
+void VariableChooser::addSupportedWidget(QWidget *textcontrol, const QByteArray &ownName)
 {
     QTC_ASSERT(textcontrol, return);
-    textcontrol->setProperty(kVariableSupportProperty, true);
+    textcontrol->setProperty(kVariableSupportProperty, QVariant::fromValue<QWidget *>(this));
+    textcontrol->setProperty(kVariableNameProperty, ownName);
 }
 
 /*!
  * \internal
  */
-void VariableChooserPrivate::updateDescription(const QString &variable)
+void VariableChooserPrivate::updateDescription(const QModelIndex &index)
 {
-    if (variable.isNull())
+    m_variableDescription->setText(m_model.data(index, Qt::ToolTipRole).toString());
-        m_variableDescription->setText(m_defaultDescription);
-    else
-        m_variableDescription->setText(globalMacroExpander()->variableDescription(variable.toUtf8())
-            + QLatin1String("<p>") + tr("Current Value: %1").arg(globalMacroExpander()->value(variable.toUtf8())));
 }
 
 /*!
@@ -236,15 +321,16 @@ void VariableChooserPrivate::updateCurrentEditor(QWidget *old, QWidget *widget)
     }
     if (!handle)
         return;
+
     widget->installEventFilter(this); // for intercepting escape key presses
     QLineEdit *previousLineEdit = m_lineEdit;
     QWidget *previousWidget = currentWidget();
     m_lineEdit = 0;
     m_textEdit = 0;
     m_plainTextEdit = 0;
-    QVariant variablesSupportProperty = widget->property(VariableChooser::kVariableSupportProperty);
+    QWidget *chooser = widget->property(kVariableSupportProperty).value<QWidget *>();
-    bool supportsVariables = (variablesSupportProperty.isValid()
+    m_currentVariableName = widget->property(kVariableNameProperty).value<QByteArray>();
-                              ? variablesSupportProperty.toBool() : false);
+    bool supportsVariables = chooser == q;
     if (QLineEdit *lineEdit = qobject_cast<QLineEdit *>(widget))
         m_lineEdit = (supportsVariables ? lineEdit : 0);
     else if (QTextEdit *textEdit = qobject_cast<QTextEdit *>(widget))
@@ -283,7 +369,7 @@ void VariableChooserPrivate::updateCurrentEditor(QWidget *old, QWidget *widget)
 /*!
  * \internal
  */
-void VariableChooserPrivate::updatePositionAndShow()
+void VariableChooserPrivate::updatePositionAndShow(bool)
 {
     if (QWidget *w = q->parentWidget()) {
         QPoint parentCenter = w->mapToGlobal(w->geometry().center());
@@ -309,10 +395,9 @@ QWidget *VariableChooserPrivate::currentWidget()
 /*!
  * \internal
  */
-void VariableChooserPrivate::handleItemActivated(QListWidgetItem *item)
+void VariableChooserPrivate::handleItemActivated(const QModelIndex &index)
 {
-    if (item)
+    insertVariable(m_model.data(index, Qt::DisplayRole).toString());
-        insertVariable(item->text());
 }
 
 /*!
@@ -320,7 +405,7 @@ void VariableChooserPrivate::handleItemActivated(QListWidgetItem *item)
  */
 void VariableChooserPrivate::insertVariable(const QString &variable)
 {
-    const QString &text = QLatin1String("%{") + variable + QLatin1Char('}');
+    const QString text = QLatin1String("%{") + variable + QLatin1Char('}');
     if (m_lineEdit) {
         m_lineEdit->insert(text);
         m_lineEdit->activateWindow();
@@ -367,5 +452,3 @@ bool VariableChooser::eventFilter(QObject *, QEvent *event)
 }
 
 } // namespace Internal
-
-#include "variablechooser.moc"

src/plugins/coreplugin/variablechooser.h

@@ -35,10 +35,16 @@
 
 #include <QWidget>
 
+#include <functional>
+
+namespace Utils { class MacroExpander; }
+
 namespace Core {
 
 namespace Internal { class VariableChooserPrivate; }
 
+typedef std::function<Utils::MacroExpander *()> MacroExpanderProvider;
+
 class CORE_EXPORT VariableChooser : public QWidget
 {
     Q_OBJECT
@@ -47,8 +53,8 @@ public:
     explicit VariableChooser(QWidget *parent = 0);
     ~VariableChooser();
 
-    static const char kVariableSupportProperty[];
+    void addMacroExpanderProvider(const MacroExpanderProvider &provider);
-    static void addVariableSupport(QWidget *textcontrol);
+    void addSupportedWidget(QWidget *textcontrol, const QByteArray &ownName = QByteArray());
 
 protected:
     void keyPressEvent(QKeyEvent *ke);

src/plugins/cpptools/cpptoolsplugin.cpp

@@ -51,12 +51,12 @@
 #include <coreplugin/documentmanager.h>
 #include <coreplugin/icore.h>
 #include <coreplugin/jsexpander.h>
-#include <coreplugin/variablemanager.h>
 #include <coreplugin/vcsmanager.h>
 #include <cppeditor/cppeditorconstants.h>
 
 #include <utils/fileutils.h>
 #include <utils/hostosinfo.h>
+#include <utils/macroexpander.h>
 #include <utils/qtcassert.h>
 
 #include <QtPlugin>
@@ -191,7 +191,7 @@ bool CppToolsPlugin::initialize(const QStringList &arguments, QString *error)
     mcpptools->addAction(command);
     connect(openInNextSplitAction, SIGNAL(triggered()), this, SLOT(switchHeaderSourceInNextSplit()));
 
-    Utils::MacroExpander *expander = globalMacroExpander();
+    Utils::MacroExpander *expander = Utils::globalMacroExpander();
     expander->registerVariable("Cpp:LicenseTemplate",
                                tr("The license template."),
                                [this]() { return CppToolsPlugin::licenseTemplate(); });

src/plugins/debugger/debuggerengine.cpp

@@ -60,9 +60,10 @@
 
 #include <texteditor/texteditor.h>
 
-#include <utils/savedaction.h>
-#include <utils/qtcassert.h>
 #include <utils/fileinprojectfinder.h>
+#include <utils/macroexpander.h>
+#include <utils/qtcassert.h>
+#include <utils/savedaction.h>
 
 #include <qmljs/consolemanagerinterface.h>
 
@@ -178,7 +179,7 @@ public:
         connect(action(IntelFlavor), SIGNAL(valueChanged(QVariant)),
                 SLOT(reloadDisassembly()));
 
-        globalMacroExpander()->registerFileVariables(PrefixDebugExecutable,
+        Utils::globalMacroExpander()->registerFileVariables(PrefixDebugExecutable,
             tr("Debugged executable"),
             [this]() { return m_startParameters.executable; });
     }
@@ -1835,7 +1836,7 @@ void DebuggerEngine::validateExecutable(DebuggerStartParameters *sp)
             SourcePathRegExpMap globalRegExpSourceMap;
             globalRegExpSourceMap.reserve(options->sourcePathRegExpMap.size());
             foreach (auto entry, options->sourcePathRegExpMap) {
-                const QString expanded = globalMacroExpander()->expandedString(entry.second);
+                const QString expanded = Utils::globalMacroExpander()->expandedString(entry.second);
                 if (!expanded.isEmpty())
                     globalRegExpSourceMap.push_back(qMakePair(entry.first, expanded));
             }

src/plugins/debugger/debuggerengine.h

@@ -36,7 +36,6 @@
 #include "debuggerstartparameters.h"
 #include "breakpoint.h" // For BreakpointModelId.
 #include "threaddata.h" // For ThreadId.
-#include "coreplugin/variablemanager.h"
 
 #include <QObject>
 

src/plugins/debugger/debuggersourcepathmappingwidget.cpp

@@ -209,7 +209,6 @@ DebuggerSourcePathMappingWidget::DebuggerSourcePathMappingWidget(QWidget *parent
     m_sourceLineEdit(new QLineEdit(this)),
     m_targetChooser(new PathChooser(this))
 {
-    (void)new Core::VariableChooser(this);
     setTitle(tr("Source Paths Mapping"));
     setToolTip(tr("<html><head/><body><p>Mappings of source file folders to "
                   "be used in the debugger can be entered here.</p>"
@@ -275,7 +274,9 @@ DebuggerSourcePathMappingWidget::DebuggerSourcePathMappingWidget(QWidget *parent
     editTargetLabel->setBuddy(m_targetChooser);
     m_targetChooser->setToolTip(targetToolTip);
     editLayout->addRow(editTargetLabel, m_targetChooser);
-    Core::VariableChooser::addVariableSupport(m_targetChooser->lineEdit());
+
+    auto chooser = new Core::VariableChooser(this);
+    chooser->addSupportedWidget(m_targetChooser->lineEdit());
 
     // Main layout
     QVBoxLayout *mainLayout = new QVBoxLayout;

src/plugins/debugger/gdb/gdbengine.cpp

@@ -69,8 +69,10 @@
 #include <projectexplorer/itaskhandler.h>
 #include <projectexplorer/taskhub.h>
 #include <texteditor/texteditor.h>
+
 #include <utils/algorithm.h>
 #include <utils/hostosinfo.h>
+#include <utils/macroexpander.h>
 #include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>
 #include <utils/savedaction.h>

src/plugins/debugger/gdb/gdboptionspage.cpp

@@ -72,8 +72,6 @@ public:
 GdbOptionsPageWidget::GdbOptionsPageWidget(QWidget *parent)
     : QWidget(parent)
 {
-    (void) new VariableChooser(this);
-
     auto groupBoxGeneral = new QGroupBox(this);
     groupBoxGeneral->setTitle(GdbOptionsPage::tr("General"));
 
@@ -233,10 +231,11 @@ GdbOptionsPageWidget::GdbOptionsPageWidget(QWidget *parent)
         "Matching regular expression: "));
     */
 
-    VariableChooser::addVariableSupport(textEditCustomDumperCommands);
+    auto chooser = new VariableChooser(this);
-    VariableChooser::addVariableSupport(textEditPostAttachCommands);
+    chooser->addSupportedWidget(textEditCustomDumperCommands);
-    VariableChooser::addVariableSupport(textEditStartupCommands);
+    chooser->addSupportedWidget(textEditPostAttachCommands);
-    VariableChooser::addVariableSupport(pathChooserExtraDumperFile->lineEdit());
+    chooser->addSupportedWidget(textEditStartupCommands);
+    chooser->addSupportedWidget(pathChooserExtraDumperFile->lineEdit());
 
     auto formLayout = new QFormLayout(groupBoxGeneral);
     formLayout->addRow(labelGdbWatchdogTimeout, spinBoxGdbWatchdogTimeout);

src/plugins/debugger/watchhandler.cpp

@@ -897,7 +897,7 @@ QModelIndex WatchModel::parent(const QModelIndex &idx) const
     if (!grandparent)
         return QModelIndex();
 
-    const WatchItems &uncles = grandparent->children;
+    const auto &uncles = grandparent->children;
     for (int i = 0, n = uncles.size(); i < n; ++i)
         if (uncles.at(i) == parent)
             return createIndex(i, 0, (void*) parent);

src/plugins/genericprojectmanager/genericmakestep.cpp

@@ -43,7 +43,6 @@
 #include <projectexplorer/toolchain.h>
 #include <qtsupport/qtkitinformation.h>
 #include <qtsupport/qtparser.h>
-#include <coreplugin/variablemanager.h>
 #include <utils/stringutils.h>
 #include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>

src/plugins/ios/iosbuildstep.cpp

@@ -51,7 +51,6 @@
 #include <qmakeprojectmanager/qmakenodes.h>
 #include <qtsupport/qtkitinformation.h>
 #include <qtsupport/qtparser.h>
-#include <coreplugin/variablemanager.h>
 #include <utils/stringutils.h>
 #include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>

src/plugins/ios/iosdsymbuildstep.cpp

@@ -45,7 +45,6 @@
 #include <projectexplorer/projectexplorerconstants.h>
 #include <qtsupport/qtkitinformation.h>
 #include <qtsupport/qtparser.h>
-#include <coreplugin/variablemanager.h>
 #include <utils/stringutils.h>
 #include <utils/qtcassert.h>
 #include <utils/qtcprocess.h>

src/plugins/projectexplorer/buildconfiguration.cpp

@@ -38,7 +38,6 @@
 #include "kit.h"
 #include "projectmacroexpander.h"
 
-#include <coreplugin/variablemanager.h>
 #include <projectexplorer/buildenvironmentwidget.h>
 #include <extensionsystem/pluginmanager.h>
 #include <coreplugin/idocument.h>

src/plugins/projectexplorer/jsonwizard/jsonwizardexpander.cpp

@@ -32,8 +32,7 @@
 
 #include "jsonwizard.h"
 
-#include <coreplugin/variablemanager.h>
+#include <utils/macroexpander.h>
-
 #include <utils/qtcassert.h>
 
 #include <QVariant>
@@ -59,7 +58,7 @@ bool JsonWizardExpander::resolveMacro(const QString &name, QString *ret)
         return true;
     }
 
-    return Core::globalMacroExpander()->resolveMacro(name, ret);
+    return Utils::globalMacroExpander()->resolveMacro(name, ret);
 }
 
 } // namespace Internal

src/plugins/projectexplorer/localapplicationrunconfiguration.cpp

@@ -32,8 +32,9 @@
 
 #include "buildconfiguration.h"
 
+#include <utils/macroexpander.h>
 #include <utils/stringutils.h>
-#include <coreplugin/variablemanager.h>
+
 #include <projectexplorer/target.h>
 #include <projectexplorer/project.h>
 
@@ -58,7 +59,7 @@ bool FallBackMacroExpander::resolveMacro(const QString &name, QString *ret)
         return true;
     }
     bool found;
-    *ret = Core::globalMacroExpander()->value(name.toUtf8(), &found);
+    *ret = Utils::globalMacroExpander()->value(name.toUtf8(), &found);
     return found;
 }
 } // namespace Internal

src/plugins/projectexplorer/processstep.cpp

@@ -35,7 +35,7 @@
 #include "target.h"
 #include "kit.h"
 
-#include <coreplugin/variablemanager.h>
+#include <utils/macroexpander.h>
 
 #include <QDebug>
 
@@ -82,7 +82,7 @@ bool ProcessStep::init()
     if (!bc)
         bc = target()->activeBuildConfiguration();
     ProcessParameters *pp = processParameters();
-    pp->setMacroExpander(bc ? bc->macroExpander() : Core::globalMacroExpander());
+    pp->setMacroExpander(bc ? bc->macroExpander() : Utils::globalMacroExpander());
     pp->setEnvironment(bc ? bc->environment() : Utils::Environment::systemEnvironment());
     pp->setWorkingDirectory(workingDirectory());
     pp->setCommand(m_command);
@@ -272,7 +272,7 @@ void ProcessStepConfigWidget::updateDetails()
     BuildConfiguration *bc = m_step->buildConfiguration();
     if (!bc) // iff the step is actually in the deploy list
         bc = m_step->target()->activeBuildConfiguration();
-    param.setMacroExpander(bc ? bc->macroExpander() : Core::globalMacroExpander());
+    param.setMacroExpander(bc ? bc->macroExpander() : Utils::globalMacroExpander());
     param.setEnvironment(bc ? bc->environment() : Utils::Environment::systemEnvironment());
 
     param.setWorkingDirectory(m_step->workingDirectory());

src/plugins/projectexplorer/projectexplorer.cpp

@@ -117,12 +117,13 @@
 #include <coreplugin/findplaceholder.h>
 #include <coreplugin/vcsmanager.h>
 #include <coreplugin/iversioncontrol.h>
-#include <coreplugin/variablemanager.h>
 #include <coreplugin/fileutils.h>
 #include <coreplugin/removefiledialog.h>
 #include <texteditor/findinfiles.h>
+
 #include <utils/algorithm.h>
 #include <utils/fileutils.h>
+#include <utils/macroexpander.h>
 #include <utils/parameteraction.h>
 #include <utils/qtcassert.h>
 
@@ -1135,7 +1136,7 @@ bool ProjectExplorerPlugin::initialize(const QStringList &arguments, QString *er
 
     updateWelcomePage();
 
-    Utils::MacroExpander *expander = globalMacroExpander();
+    Utils::MacroExpander *expander = Utils::globalMacroExpander();
     expander->registerFileVariables(Constants::VAR_CURRENTPROJECT_PREFIX,
         tr("Current project's main file"),
         [this]() -> QString {

src/plugins/projectexplorer/projectexplorersettingspage.cpp

@@ -48,8 +48,6 @@ ProjectExplorerSettingsWidget::ProjectExplorerSettingsWidget(QWidget *parent) :
     QWidget(parent)
 {
     m_ui.setupUi(this);
-    new Core::VariableChooser(this);
-    Core::VariableChooser::addVariableSupport(m_ui.buildDirectoryEdit);
     setJomVisible(Utils::HostOsInfo::isWindowsHost());
     m_ui.directoryButtonGroup->setId(m_ui.currentDirectoryRadioButton, UseCurrentDirectory);
     m_ui.directoryButtonGroup->setId(m_ui.directoryRadioButton, UseProjectDirectory);
@@ -58,6 +56,9 @@ ProjectExplorerSettingsWidget::ProjectExplorerSettingsWidget(QWidget *parent) :
             this, SLOT(slotDirectoryButtonGroupChanged()));
     connect(m_ui.resetButton, SIGNAL(clicked()), this, SLOT(resetDefaultBuildDirectory()));
     connect(m_ui.buildDirectoryEdit, SIGNAL(textChanged(QString)), this, SLOT(updateResetButton()));
+
+    auto chooser = new Core::VariableChooser(this);
+    chooser->addSupportedWidget(m_ui.buildDirectoryEdit);
 }
 
 void ProjectExplorerSettingsWidget::setJomVisible(bool v)

src/plugins/projectexplorer/projectmacroexpander.cpp

@@ -33,7 +33,7 @@
 #include "kitinformation.h"
 #include "projectexplorerconstants.h"
 
-#include <coreplugin/variablemanager.h>
+#include <utils/macroexpander.h>
 #include <ssh/sshconnection.h>
 
 using namespace ProjectExplorer;
@@ -99,7 +99,7 @@ bool ProjectMacroExpander::resolveMacro(const QString &name, QString *ret)
 {
     bool found = resolveProjectMacro(name, ret);
     if (!found) {
-        QString result = Core::globalMacroExpander()->value(name.toUtf8(), &found);
+        QString result = Utils::globalMacroExpander()->value(name.toUtf8(), &found);
         if (ret)
             *ret = result;
     }

src/plugins/qtsupport/baseqtversion.cpp

@@ -250,6 +250,9 @@ void BaseQtVersion::setupExpander()
 //    m_expander.registerVariable("Qt:name",
 //        QCoreApplication::translate("QtSupport::QtKitInformation", "The display name of the current Qt version."),
 //        [this]() { return displayName(); });
+
+    m_expander.setDisplayName(
+        QCoreApplication::translate("QtSupport::QtKitInformation", "Qt version"));
 }
 
 BaseQtVersion::~BaseQtVersion()
@@ -606,7 +609,8 @@ void BaseQtVersion::setAutoDetectionSource(const QString &autodetectionSource)
 
 QString BaseQtVersion::displayName() const
 {
-    return Utils::expandMacros(m_unexpandedDisplayName, &m_expander);
+    QString ret = Utils::expandMacros(m_unexpandedDisplayName, &m_expander);
+    return Utils::expandMacros(ret, Utils::globalMacroExpander());
 }
 
 QString BaseQtVersion::unexpandedDisplayName() const

src/plugins/qtsupport/qtkitinformation.cpp

@@ -146,6 +146,9 @@ bool QtKitInformation::resolveMacro(const ProjectExplorer::Kit *kit, const QStri
         }
     }
 
+    if (Utils::globalMacroExpander()->resolveMacro(name, ret))
+        return true;
+
     return false;
 }
 

src/plugins/qtsupport/qtoptionspage.cpp

@@ -41,6 +41,7 @@
 
 #include <coreplugin/progressmanager/progressmanager.h>
 #include <coreplugin/coreconstants.h>
+#include <coreplugin/variablechooser.h>
 #include <projectexplorer/toolchainmanager.h>
 #include <projectexplorer/projectexplorerconstants.h>
 #include <utils/hostosinfo.h>
@@ -192,6 +193,14 @@ QtOptionsPageWidget::QtOptionsPageWidget(QWidget *parent)
 
     connect(ProjectExplorer::ToolChainManager::instance(), SIGNAL(toolChainsChanged()),
             this, SLOT(toolChainsUpdated()));
+
+    auto chooser = new Core::VariableChooser(this);
+    chooser->addSupportedWidget(m_versionUi->nameEdit, "Qt:name");
+    chooser->addMacroExpanderProvider(
+        [this]() -> Utils::MacroExpander * {
+            BaseQtVersion *version = currentVersion();
+            return version ? version->macroExpander() : 0;
+        });
 }
 
 int QtOptionsPageWidget::currentIndex() const

src/plugins/qtsupport/qtsupportplugin.cpp

@@ -46,12 +46,12 @@
 
 #include <coreplugin/icore.h>
 #include <coreplugin/mimedatabase.h>
-#include <coreplugin/variablemanager.h>
 #include <coreplugin/jsexpander.h>
+
 #include <projectexplorer/project.h>
 #include <projectexplorer/projectexplorer.h>
 #include <projectexplorer/target.h>
-
+#include <utils/macroexpander.h>
 
 #include <QtPlugin>
 
@@ -114,7 +114,7 @@ static QString qmakeProperty(const char *propertyName)
 
 void QtSupportPlugin::extensionsInitialized()
 {
-    Utils::MacroExpander *expander = globalMacroExpander();
+    Utils::MacroExpander *expander = Utils::globalMacroExpander();
 
     expander->registerVariable(kHostBins,
         tr("Full path to the host bin directory of the current project's Qt version."),

src/plugins/texteditor/texteditorplugin.cpp

@@ -45,11 +45,11 @@
 #include "textmarkregistry.h"
 
 #include <coreplugin/icore.h>
-#include <coreplugin/variablemanager.h>
 #include <coreplugin/actionmanager/actionmanager.h>
 #include <coreplugin/externaltoolmanager.h>
 #include <extensionsystem/pluginmanager.h>
 #include <utils/qtcassert.h>
+#include <utils/macroexpander.h>
 
 #include <QtPlugin>
 #include <QAction>
@@ -147,7 +147,7 @@ void TextEditorPlugin::extensionsInitialized()
     addAutoReleasedObject(new FindInCurrentFile);
     addAutoReleasedObject(new FindInOpenFiles);
 
-    Utils::MacroExpander *expander = globalMacroExpander();
+    Utils::MacroExpander *expander = Utils::globalMacroExpander();
 
     expander->registerVariable(kCurrentDocumentSelection,
         tr("Selected text within the current document."),

src/plugins/vcsbase/vcsplugin.cpp

@@ -39,11 +39,13 @@
 
 #include <coreplugin/iversioncontrol.h>
 #include <coreplugin/mimedatabase.h>
-#include <coreplugin/variablemanager.h>
 #include <coreplugin/vcsmanager.h>
+
 #include <projectexplorer/project.h>
 #include <projectexplorer/projectexplorer.h>
 
+#include <utils/macroexpander.h>
+
 #include <QtPlugin>
 #include <QDebug>
 
@@ -87,7 +89,7 @@ bool VcsPlugin::initialize(const QStringList &arguments, QString *errorMessage)
             this, SLOT(slotSettingsChanged()));
     slotSettingsChanged();
 
-    Utils::MacroExpander *expander = globalMacroExpander();
+    Utils::MacroExpander *expander = Utils::globalMacroExpander();
     expander->registerVariable(Constants::VAR_VCS_NAME,
         tr("Name of the version control system in use by the current project."),
         []() -> QString {