Completely rework currentNode/currentProject handling

Centralize the handling inside a new class ProjectTree.
React to moving focus and remove most special handling.

This properly fixes the linked task.

Task-number: QTCREATORBUG-13357
Change-Id: I6b06aa32b1e4305ec8a6d432857b302585d8734b
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>

src/plugins/android/androidqtversion.cpp

@@ -43,7 +43,7 @@
 #include <projectexplorer/target.h>
 #include <projectexplorer/kit.h>
 #include <projectexplorer/project.h>
-#include <projectexplorer/projectexplorer.h>
+#include <projectexplorer/projecttree.h>
 
 #include <proparser/profileevaluator.h>
 
@@ -107,7 +107,7 @@ void AndroidQtVersion::addToEnvironment(const ProjectExplorer::Kit *k, Utils::En
     env.set(QLatin1String("ANDROID_NDK_HOST"), AndroidConfigurations::currentConfig().toolchainHost());
     env.set(QLatin1String("ANDROID_NDK_ROOT"), AndroidConfigurations::currentConfig().ndkLocation().toUserOutput());
 
-    Project *project = ProjectExplorerPlugin::instance()->currentProject();
+    Project *project = ProjectTree::currentProject();
     if (!project || !project->activeTarget()
             || QtSupport::QtKitInformation::qtVersion(k)->type() != QLatin1String(Constants::ANDROIDQT))
         return;

src/plugins/beautifier/artisticstyle/artisticstyle.cpp

@@ -49,7 +49,7 @@
 #include <coreplugin/icore.h>
 #include <coreplugin/idocument.h>
 #include <cppeditor/cppeditorconstants.h>
-#include <projectexplorer/projectexplorer.h>
+#include <projectexplorer/projecttree.h>
 #include <projectexplorer/project.h>
 #include <utils/fileutils.h>
 #include <utils/hostosinfo.h>
@@ -108,7 +108,7 @@ void ArtisticStyle::formatFile()
 
     if (m_settings->useOtherFiles()) {
         if (const ProjectExplorer::Project *project
-                = ProjectExplorer::ProjectExplorerPlugin::currentProject()) {
+                = ProjectExplorer::ProjectTree::currentProject()) {
             const QStringList files = project->files(ProjectExplorer::Project::AllFiles);
             for (int i = 0, total = files.size(); i < total; ++i) {
                 const QString &file = files.at(i);

src/plugins/beautifier/uncrustify/uncrustify.cpp

@@ -49,7 +49,7 @@
 #include <coreplugin/icore.h>
 #include <coreplugin/idocument.h>
 #include <cppeditor/cppeditorconstants.h>
-#include <projectexplorer/projectexplorer.h>
+#include <projectexplorer/projecttree.h>
 #include <projectexplorer/project.h>
 #include <utils/fileutils.h>
 
@@ -107,7 +107,7 @@ void Uncrustify::formatFile()
 
     if (m_settings->useOtherFiles()) {
         if (const ProjectExplorer::Project *project
-                = ProjectExplorer::ProjectExplorerPlugin::currentProject()) {
+                = ProjectExplorer::ProjectTree::currentProject()) {
             const QStringList files = project->files(ProjectExplorer::Project::AllFiles);
             for (int i = 0, total = files.size(); i < total; ++i) {
                 const QString &file = files.at(i);

src/plugins/clearcase/clearcaseplugin.cpp

@@ -54,7 +54,7 @@
 #include <coreplugin/mimedatabase.h>
 #include <coreplugin/progressmanager/progressmanager.h>
 #include <coreplugin/locator/commandlocator.h>
-#include <projectexplorer/projectexplorer.h>
+#include <projectexplorer/projecttree.h>
 #include <projectexplorer/project.h>
 #include <projectexplorer/iprojectmanager.h>
 #include <utils/algorithm.h>
@@ -453,8 +453,8 @@ bool ClearCasePlugin::initialize(const QStringList & /*arguments */, QString *er
     m_settings.fromSettings(ICore::settings());
 
     // update view name when changing active project
-    connect(ProjectExplorerPlugin::instance(), SIGNAL(currentProjectChanged(ProjectExplorer::Project*)),
-            this, SLOT(projectChanged(ProjectExplorer::Project*)));
+    connect(ProjectTree::instance(), &ProjectTree::currentProjectChanged,
+            this, &ClearCasePlugin::projectChanged);
 
     addAutoReleasedObject(new SettingsPage);
 
@@ -2055,7 +2055,7 @@ void ClearCasePlugin::updateIndex()
 {
     QTC_ASSERT(currentState().hasTopLevel(), return);
     ProgressManager::cancelTasks(ClearCase::Constants::TASK_INDEX);
-    Project *project = ProjectExplorerPlugin::currentProject();
+    Project *project = ProjectTree::currentProject();
     if (!project)
         return;
     m_checkInAllAction->setEnabled(false);

src/plugins/cmakeprojectmanager/cmakeprojectmanager.cpp

@@ -41,6 +41,7 @@
 #include <coreplugin/actionmanager/command.h>
 #include <coreplugin/actionmanager/actioncontainer.h>
 #include <projectexplorer/projectexplorer.h>
+#include <projectexplorer/projecttree.h>
 #include <QDateTime>
 
 using namespace CMakeProjectManager::Internal;
@@ -67,7 +68,7 @@ CMakeManager::CMakeManager(CMakeSettingsPage *cmakeSettingsPage)
     command->setAttribute(Core::Command::CA_Hide);
     mbuild->addAction(command, ProjectExplorer::Constants::G_BUILD_DEPLOY);
     connect(m_runCMakeAction, &QAction::triggered, [this]() {
-        runCMake(ProjectExplorer::ProjectExplorerPlugin::currentProject());
+        runCMake(ProjectExplorer::ProjectTree::currentProject());
     });
 
     m_runCMakeActionContextMenu = new QAction(QIcon(), tr("Run CMake"), this);

src/plugins/cpptools/cppcodestylesettings.cpp

@@ -36,7 +36,7 @@
 
 #include <projectexplorer/editorconfiguration.h>
 #include <projectexplorer/project.h>
-#include <projectexplorer/projectexplorer.h>
+#include <projectexplorer/projecttree.h>
 
 #include <utils/qtcassert.h>
 #include <utils/settingsutils.h>
@@ -210,7 +210,7 @@ static void configureOverviewWithCodeStyleSettings(CPlusPlus::Overview &overview
 
 CPlusPlus::Overview CppCodeStyleSettings::currentProjectCodeStyleOverview()
 {
-    ProjectExplorer::Project *project = ProjectExplorer::ProjectExplorerPlugin::currentProject();
+    ProjectExplorer::Project *project = ProjectExplorer::ProjectTree::currentProject();
     if (!project)
         return currentGlobalCodeStyleOverview();
 

src/plugins/cpptools/cpptoolsplugin.cpp

@@ -53,6 +53,7 @@
 #include <coreplugin/jsexpander.h>
 #include <coreplugin/vcsmanager.h>
 #include <cppeditor/cppeditorconstants.h>
+#include <projectexplorer/projecttree.h>
 
 #include <utils/fileutils.h>
 #include <utils/hostosinfo.h>
@@ -431,7 +432,7 @@ QString correspondingHeaderOrSource(const QString &fileName, bool *wasHeader)
     }
 
     // Find files in the current project
-    ProjectExplorer::Project *currentProject = ProjectExplorer::ProjectExplorerPlugin::currentProject();
+    ProjectExplorer::Project *currentProject = ProjectExplorer::ProjectTree::currentProject();
     if (currentProject) {
         const QString path = correspondingHeaderOrSourceInProject(fi, candidateFileNames,
                                                                   currentProject);

src/plugins/debugger/debuggerplugin.cpp

@@ -93,6 +93,7 @@
 #include <projectexplorer/devicesupport/deviceprocesslist.h>
 #include <projectexplorer/devicesupport/deviceprocessesdialog.h>
 #include <projectexplorer/projectexplorer.h>
+#include <projectexplorer/projecttree.h>
 #include <projectexplorer/projectexplorersettings.h>
 #include <projectexplorer/project.h>
 #include <projectexplorer/session.h>
@@ -481,7 +482,7 @@ public:
 bool DummyEngine::hasCapability(unsigned cap) const
 {
     // This can only be a first approximation of what to expect when running.
-    Project *project = ProjectExplorerPlugin::currentProject();
+    Project *project = ProjectTree::currentProject();
     if (!project)
         return 0;
     Target *target = project->activeTarget();
@@ -3437,7 +3438,7 @@ void DebuggerPlugin::extensionsInitialized()
 
 void DebuggerPluginPrivate::testLoadProject(const QString &proFile, const TestCallBack &cb)
 {
-    connect(ProjectExplorerPlugin::instance(), &ProjectExplorerPlugin::currentProjectChanged,
+    connect(ProjectTree::instance(), &ProjectTree::currentProjectChanged,
             this, &DebuggerPluginPrivate::testProjectLoaded);
 
     m_testCallbacks.append(cb);

src/plugins/debugger/unstartedappwatcherdialog.cpp

@@ -39,7 +39,7 @@
 #include <projectexplorer/target.h>
 #include <projectexplorer/project.h>
 #include <projectexplorer/kitmanager.h>
-#include <projectexplorer/projectexplorer.h>
+#include <projectexplorer/projecttree.h>
 #include <projectexplorer/runconfiguration.h>
 #include <projectexplorer/buildconfiguration.h>
 #include <projectexplorer/localapplicationrunconfiguration.h>
@@ -88,7 +88,7 @@ UnstartedAppWatcherDialog::UnstartedAppWatcherDialog(QWidget *parent)
     m_kitChooser->populate();
     m_kitChooser->setVisible(true);
 
-    Project *project = ProjectExplorerPlugin::currentProject();
+    Project *project = ProjectTree::currentProject();
     if (project && project->activeTarget() && project->activeTarget()->kit())
         m_kitChooser->setCurrentKitId(project->activeTarget()->kit()->id());
     else if (KitManager::defaultKit())
@@ -163,7 +163,7 @@ void UnstartedAppWatcherDialog::selectExecutable()
 {
     QString path;
 
-    Project *project = ProjectExplorerPlugin::currentProject();
+    Project *project = ProjectTree::currentProject();
 
     if (project && project->activeTarget() && project->activeTarget()->activeRunConfiguration()) {
 

src/plugins/projectexplorer/currentprojectfilter.cpp

@@ -29,7 +29,7 @@
 ****************************************************************************/
 
 #include "currentprojectfilter.h"
-#include "projectexplorer.h"
+#include "projecttree.h"
 #include "project.h"
 
 #include <utils/algorithm.h>
@@ -49,8 +49,8 @@ CurrentProjectFilter::CurrentProjectFilter()
     setShortcutString(QString(QLatin1Char('p')));
     setIncludedByDefault(false);
 
-    connect(ProjectExplorerPlugin::instance(), SIGNAL(currentProjectChanged(ProjectExplorer::Project*)),
-            this, SLOT(currentProjectChanged(ProjectExplorer::Project*)));
+    connect(ProjectTree::instance(), &ProjectTree::currentProjectChanged,
+            this, &CurrentProjectFilter::currentProjectChanged);
 }
 
 void CurrentProjectFilter::markFilesAsOutOfDate()

src/plugins/projectexplorer/currentprojectfind.cpp

@@ -30,8 +30,8 @@
 
 #include "currentprojectfind.h"
 
-#include "projectexplorer.h"
 #include "project.h"
+#include "projecttree.h"
 #include "session.h"
 
 #include <utils/qtcassert.h>
@@ -46,8 +46,8 @@ using namespace TextEditor;
 
 CurrentProjectFind::CurrentProjectFind()
 {
-    connect(ProjectExplorerPlugin::instance(), SIGNAL(currentProjectChanged(ProjectExplorer::Project*)),
-            this, SLOT(handleProjectChanged()));
+    connect(ProjectTree::instance(), &ProjectTree::currentProjectChanged,
+            this, &CurrentProjectFind::handleProjectChanged);
     connect(SessionManager::instance(), SIGNAL(projectRemoved(ProjectExplorer::Project*)),
             this, SLOT(handleProjectChanged()));
     connect(SessionManager::instance(), SIGNAL(projectAdded(ProjectExplorer::Project*)),
@@ -66,12 +66,12 @@ QString CurrentProjectFind::displayName() const
 
 bool CurrentProjectFind::isEnabled() const
 {
-    return ProjectExplorerPlugin::currentProject() != 0 && BaseFileFind::isEnabled();
+    return ProjectTree::currentProject() != 0 && BaseFileFind::isEnabled();
 }
 
 QVariant CurrentProjectFind::additionalParameters() const
 {
-    Project *project = ProjectExplorerPlugin::currentProject();
+    Project *project = ProjectTree::currentProject();
     if (project && project->document())
         return qVariantFromValue(project->projectFilePath().toString());
     return QVariant();
@@ -92,8 +92,8 @@ Utils::FileIterator *CurrentProjectFind::files(const QStringList &nameFilters,
 
 QString CurrentProjectFind::label() const
 {
-    QTC_ASSERT(ProjectExplorerPlugin::currentProject(), return QString());
-    return tr("Project \"%1\":").arg(ProjectExplorerPlugin::currentProject()->displayName());
+    QTC_ASSERT(ProjectTree::currentProject(), return QString());
+    return tr("Project \"%1\":").arg(ProjectTree::currentProject()->displayName());
 }
 
 void CurrentProjectFind::handleProjectChanged()

src/plugins/projectexplorer/nodesvisitor.cpp

@@ -101,6 +101,11 @@ void FindNodesForFileVisitor::visitFolderNode(FolderNode *node)
     }
 }
 
+void FindNodesForFileVisitor::visitSessionNode(SessionNode *node)
+{
+    visitFolderNode(node);
+}
+
 /*!
   \class FindAllFilesVisitor
 

src/plugins/projectexplorer/nodesvisitor.h

@@ -64,6 +64,7 @@ public:
 
     void visitProjectNode(ProjectNode *node);
     void visitFolderNode(FolderNode *node);
+    void visitSessionNode(SessionNode *node);
 private:
     QString m_path;
     QList<Node*> m_nodes;

src/plugins/projectexplorer/projectexplorer.h

@@ -76,12 +76,6 @@ public:
     Q_SLOT void openProjectWelcomePage(const QString &fileName);
     static void unloadProject(Project *project);
 
-    static Project *currentProject();
-    static Node *currentNode();
-
-    static void setCurrentFile(Project *project, const QString &file);
-    static void setCurrentNode(Node *node);
-
     static bool saveModifiedFiles();
 
     static void showContextMenu(QWidget *view, const QPoint &globalPos, Node *node);
@@ -98,7 +92,7 @@ public:
     static void showRunErrorMessage(const QString &errorMessage);
 
     // internal public for FlatModel
-    static void renameFile(Node *node, const QString &to);
+    static void renameFile(Node *node, const QString &newFilePath);
     static QStringList projectFilePatterns();
     static bool coreAboutToClose();
     static QList<QPair<QString, QString> > recentProjects();
@@ -133,8 +127,6 @@ signals:
     // or the file list of a specific project has changed.
     void fileListChanged();
 
-    void currentProjectChanged(ProjectExplorer::Project *project);
-    void currentNodeChanged(ProjectExplorer::Node *node, ProjectExplorer::Project *project);
     void aboutToExecuteProject(ProjectExplorer::Project *project, RunMode runMode);
     void recentProjectsChanged();
 
@@ -203,12 +195,7 @@ private slots:
     void updateUnloadProjectMenu();
     void openTerminalHere();
 
-    // for keeping current node / current project up to date
     void invalidateProject(ProjectExplorer::Project *project);
-    void foldersAboutToBeRemoved(FolderNode *, const QList<FolderNode*> &);
-    void filesAboutToBeRemoved(FolderNode *, const QList<FileNode*> &);
-
-    void setCurrentFile(const QString &filePath);
 
     void runControlFinished();
 
@@ -225,10 +212,8 @@ private slots:
     void loadCustomWizards();
 
     void updateWelcomePage();
-    void updateExternalFileWarning();
 
     void updateActions();
-    void updateContext();
     void runConfigurationConfigurationFinished();
     void showRenameFileError();
 

src/plugins/projectexplorer/projectexplorer.pro

@@ -152,7 +152,8 @@ HEADERS += projectexplorer.h \
     propertiespanel.h \
     panelswidget.h \
     projectwelcomepage.h \
-    projectpanelfactory.h
+    projectpanelfactory.h \
+    projecttree.h
 
 SOURCES += projectexplorer.cpp \
     abi.cpp \
@@ -290,7 +291,8 @@ SOURCES += projectexplorer.cpp \
     propertiespanel.cpp \
     panelswidget.cpp \
     projectwelcomepage.cpp \
-    projectpanelfactory.cpp
+    projectpanelfactory.cpp \
+    projecttree.cpp
 
 FORMS += processstep.ui \
     editorsettingspropertiespage.ui \

src/plugins/projectexplorer/projectmodels.cpp

@@ -352,7 +352,14 @@ bool FlatModel::setData(const QModelIndex &index, const QVariant &value, int rol
     if (role != Qt::EditRole)
         return false;
 
-    ProjectExplorerPlugin::renameFile(nodeForIndex(index), value.toString());
+    Node *node = nodeForIndex(index);
+
+    QString orgFilePath = QFileInfo(node->path()).absoluteFilePath();
+    QString dir = QFileInfo(orgFilePath).absolutePath();
+    QString newFilePath = dir + QLatin1Char('/') + value.toString();
+
+    ProjectExplorerPlugin::renameFile(node, newFilePath);
+    emit renamed(orgFilePath, newFilePath);
     return true;
 }
 

src/plugins/projectexplorer/projectmodels.h

@@ -78,6 +78,9 @@ public:
     bool projectFilterEnabled();
     bool generatedFilesFilterEnabled();
 
+signals:
+    void renamed(const QString &oldName, const QString &newName);
+
 public slots:
     void setProjectFilterEnabled(bool filter);
     void setGeneratedFilesFilterEnabled(bool filter);

src/plugins/projectexplorer/projecttree.cpp

+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://www.qt.io/licensing.  For further information
+** use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "projecttree.h"
+#include "projecttreewidget.h"
+#include "session.h"
+#include "project.h"
+#include "projectnodes.h"
+
+#include <utils/algorithm.h>
+#include <coreplugin/documentmanager.h>
+#include <coreplugin/icore.h>
+#include <coreplugin/editormanager/ieditor.h>
+#include <coreplugin/editormanager/editormanager.h>
+#include <coreplugin/infobar.h>
+#include <coreplugin/vcsmanager.h>
+
+#include <QApplication>
+
+namespace {
+const char EXTERNAL_FILE_WARNING[] = "ExternalFile";
+}
+
+using namespace ProjectExplorer;
+using namespace Internal;
+
+ProjectTree *ProjectTree::s_instance = 0;
+
+ProjectTree::ProjectTree(QObject *parent)
+    : QObject(parent),
+      m_currentNode(0),
+      m_currentProject(0),
+      m_resetCurrentNodeFolder(0),
+      m_resetCurrentNodeFile(0),
+      m_resetCurrentNodeProject(0)
+{
+    s_instance = this;
+
+    connect(Core::DocumentManager::instance(), &Core::DocumentManager::currentFileChanged,
+            this, &ProjectTree::documentManagerCurrentFileChanged);
+
+    SessionManager *session = SessionManager::instance();
+    connect(session, &SessionManager::aboutToRemoveProject,
+            this, &ProjectTree::aboutToRemoveProject);
+    connect(session, &SessionManager::projectRemoved,
+            this, &ProjectTree::projectRemoved);
+
+
+    NodesWatcher *watcher = new NodesWatcher(this);
+    SessionManager::sessionNode()->registerWatcher(watcher);
+
+    connect(watcher, &NodesWatcher::foldersAboutToBeRemoved,
+            this, &ProjectTree::foldersAboutToBeRemoved);
+    connect(watcher, &NodesWatcher::foldersRemoved,
+            this, &ProjectTree::foldersRemoved);
+
+    connect(watcher, &NodesWatcher::filesAboutToBeRemoved,
+            this, &ProjectTree::filesAboutToBeRemoved);
+    connect(watcher, &NodesWatcher::filesRemoved,
+            this, &ProjectTree::filesRemoved);
+
+    connect(watcher, &NodesWatcher::foldersAdded,
+            this, &ProjectTree::nodesAdded);
+    connect(watcher, &NodesWatcher::filesAdded,
+            this, &ProjectTree::nodesAdded);
+
+    connect(qApp, &QApplication::focusChanged,
+            this, &ProjectTree::focusChanged);
+}
+
+ProjectTree *ProjectTree::instance()
+{
+    return s_instance;
+}
+
+Project *ProjectTree::currentProject()
+{
+    return s_instance->m_currentProject;
+}
+
+Node *ProjectTree::currentNode()
+{
+    return s_instance->m_currentNode;
+}
+
+void ProjectTree::registerWidget(ProjectTreeWidget *widget)
+{
+    s_instance->m_projectTreeWidgets.append(widget);
+    if (hasFocus(widget))
+        s_instance->updateFromProjectTreeWidget(widget);
+}
+
+void ProjectTree::unregisterWidget(ProjectTreeWidget *widget)
+{
+    s_instance->m_projectTreeWidgets.removeOne(widget);
+    if (hasFocus(widget))
+        s_instance->updateFromDocumentManager();
+}
+
+void ProjectTree::nodeChanged(ProjectTreeWidget *widget)
+{
+    if (hasFocus(widget))
+        s_instance->updateFromProjectTreeWidget(widget);
+}
+
+void ProjectTree::focusChanged()
+{
+    s_instance->updateFromFocus();
+}
+
+bool ProjectTree::editorHasFocus()
+{
+    Core::IEditor *editor = Core::EditorManager::currentEditor();
+    if (!editor)
+        return false;
+    QWidget *widget = editor->widget();
+    if (!widget)
+        return false;
+    widget = widget->focusWidget();
+    if (!widget)
+        return false;
+    return widget->hasFocus();
+}
+
+void ProjectTree::updateFromFocus(bool invalidCurrentNode)
+{
+    ProjectTreeWidget *focus = Utils::findOrDefault(s_instance->m_projectTreeWidgets,
+                                                    &ProjectTree::hasFocus);
+
+    if (focus)
+        updateFromProjectTreeWidget(focus);
+    else if (editorHasFocus())
+        updateFromDocumentManager(invalidCurrentNode);
+}
+
+void ProjectTree::updateFromProjectTreeWidget(ProjectTreeWidget *widget)
+{
+    ProjectExplorer::Node *currentNode = widget->currentNode();
+    ProjectExplorer::Project *project = projectForNode(currentNode);
+
+    update(currentNode, project);
+}
+
+void ProjectTree::documentManagerCurrentFileChanged()
+{
+    if (editorHasFocus())
+        updateFromDocumentManager();
+}
+
+Project *ProjectTree::projectForNode(Node *node)
+{
+    if (!node)
+        return 0;
+
+    FolderNode *rootProjectNode = qobject_cast<FolderNode*>(node);
+    if (!rootProjectNode)
+        rootProjectNode = node->parentFolderNode();
+
+    while (rootProjectNode && rootProjectNode->parentFolderNode() != SessionManager::sessionNode())
+        rootProjectNode = rootProjectNode->parentFolderNode();
+
+    Q_ASSERT(rootProjectNode);
+
+    return Utils::findOrDefault(SessionManager::projects(), Utils::equal(&Project::rootProjectNode, rootProjectNode));
+}
+
+void ProjectTree::updateFromDocumentManager(bool invalidCurrentNode)
+{
+    const QString &fileName = Core::DocumentManager::currentFile();
+
+    ProjectExplorer::Node *currentNode = 0;
+    if (!invalidCurrentNode && m_currentNode && m_currentNode->path() == fileName)
+        currentNode = m_currentNode;
+    else
+        currentNode = ProjectTreeWidget::nodeForFile(fileName);
+
+    ProjectExplorer::Project *project = projectForNode(currentNode);
+
+    update(currentNode, project);
+    foreach (ProjectTreeWidget *widget, m_projectTreeWidgets)
+        widget->sync(currentNode);
+}
+
+void ProjectTree::update(Node *node, Project *project)
+{
+    if (project != m_currentProject) {