DocumentModel: Better separation of private API

Change-Id: Iee534ba5d6edd283add8a1f36fd0e56ab3ee8f41
Reviewed-by: David Schulz <david.schulz@theqtcompany.com>

7 files changed, 367 insertions, 315 deletions

diff --git a/src/plugins/coreplugin/coreplugin.pro b/src/plugins/coreplugin/coreplugin.pro
index 72d979f95e..9c8be5cfa7 100644
--- a/src/plugins/coreplugin/coreplugin.pro
+++ b/src/plugins/coreplugin/coreplugin.pro
@@ -217,7 +217,8 @@ HEADERS += corejsextensions.h \
     messagebox.h \
     iwelcomepage.h \
     systemsettings.h \
-    coreicons.h
+    coreicons.h \
+    editormanager/documentmodel_p.h
 
 FORMS += dialogs/newdialog.ui \
     dialogs/saveitemsdialog.ui \
diff --git a/src/plugins/coreplugin/coreplugin.qbs b/src/plugins/coreplugin/coreplugin.qbs
index f5fc28bd9b..dc2018cd04 100644
--- a/src/plugins/coreplugin/coreplugin.qbs
+++ b/src/plugins/coreplugin/coreplugin.qbs
@@ -142,7 +142,7 @@ QtcPlugin {
         name: "Editor Manager"
         prefix: "editormanager/"
         files: [
-            "documentmodel.cpp", "documentmodel.h",
+            "documentmodel.cpp", "documentmodel.h", "documentmodel_p.h",
             "editorarea.cpp", "editorarea.h",
             "editormanager.cpp", "editormanager.h", "editormanager_p.h",
             "editorview.cpp", "editorview.h",
diff --git a/src/plugins/coreplugin/editormanager/documentmodel.cpp b/src/plugins/coreplugin/editormanager/documentmodel.cpp
index 36cda805f3..9928709698 100644
--- a/src/plugins/coreplugin/editormanager/documentmodel.cpp
+++ b/src/plugins/coreplugin/editormanager/documentmodel.cpp
@@ -24,6 +24,8 @@
 ****************************************************************************/
 
 #include "documentmodel.h"
+#include "documentmodel_p.h"
+
 #include "ieditor.h"
 #include <coreplugin/documentmanager.h>
 #include <coreplugin/idocument.h>
@@ -41,135 +43,17 @@
 #include <QSet>
 #include <QUrl>
 
-namespace Core {
-
-class DocumentModelPrivate : public QAbstractItemModel
-{
-    Q_OBJECT
-
-public:
-    ~DocumentModelPrivate();
-
-    int columnCount(const QModelIndex &parent = QModelIndex()) const override;
-    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
-    Qt::ItemFlags flags(const QModelIndex &index) const override;
-    QMimeData *mimeData(const QModelIndexList &indexes) const override;
-    QModelIndex parent(const QModelIndex &/*index*/) const override { return QModelIndex(); }
-    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
-    QModelIndex index(int row, int column = 0, const QModelIndex &parent = QModelIndex()) const override;
-
-    Qt::DropActions supportedDragActions() const override;
-    QStringList mimeTypes() const override;
-
-    void addEntry(DocumentModel::Entry *entry);
-    void removeDocument(int idx);
-
-    int indexOfFilePath(const Utils::FileName &filePath) const;
-    int indexOfDocument(IDocument *document) const;
-
-    bool disambiguateDisplayNames(DocumentModel::Entry *entry);
-
-    static QIcon lockedIcon();
-
-private:
-    friend class DocumentModel;
-    void itemChanged();
-
-    class DynamicEntry
-    {
-    public:
-        DocumentModel::Entry *entry;
-        int pathComponents;
-
-        DynamicEntry(DocumentModel::Entry *e) :
-            entry(e),
-            pathComponents(0)
-        {
-        }
 
-        DocumentModel::Entry *operator->() const { return entry; }
+static Core::Internal::DocumentModelPrivate *d;
 
-        void disambiguate()
-        {
-            entry->document->setUniqueDisplayName(entry->fileName().fileName(++pathComponents));
-        }
-
-        void setNumberedName(int number)
-        {
-            entry->document->setUniqueDisplayName(QStringLiteral("%1 (%2)")
-                                                  .arg(entry->document->displayName())
-                                                  .arg(number));
-        }
-    };
-
-    QList<DocumentModel::Entry *> m_entries;
-    QMap<IDocument *, QList<IEditor *> > m_editors;
-    QHash<QString, DocumentModel::Entry *> m_entryByFixedPath;
-};
+namespace Core {
+namespace Internal {
 
 DocumentModelPrivate::~DocumentModelPrivate()
 {
     qDeleteAll(m_entries);
 }
 
-static DocumentModelPrivate *d;
-
-DocumentModel::Entry::Entry() :
-    document(0),
-    isSuspended(false)
-{
-}
-
-DocumentModel::Entry::~Entry()
-{
-    if (isSuspended)
-        delete document;
-}
-
-DocumentModel::DocumentModel()
-{
-}
-
-void DocumentModel::init()
-{
-    d = new DocumentModelPrivate;
-}
-
-void DocumentModel::destroy()
-{
-    delete d;
-}
-
-QIcon DocumentModel::lockedIcon()
-{
-    return DocumentModelPrivate::lockedIcon();
-}
-
-QAbstractItemModel *DocumentModel::model()
-{
-    return d;
-}
-
-Utils::FileName DocumentModel::Entry::fileName() const
-{
-    return document->filePath();
-}
-
-QString DocumentModel::Entry::displayName() const
-{
-    return document->displayName();
-}
-
-QString DocumentModel::Entry::plainDisplayName() const
-{
-    return document->plainDisplayName();
-}
-
-Id DocumentModel::Entry::id() const
-{
-    return document->id();
-}
-
 int DocumentModelPrivate::columnCount(const QModelIndex &parent) const
 {
     if (!parent.isValid())
@@ -184,39 +68,6 @@ int DocumentModelPrivate::rowCount(const QModelIndex &parent) const
     return 0;
 }
 
-void DocumentModel::addEditor(IEditor *editor, bool *isNewDocument)
-{
-    if (!editor)
-        return;
-
-    QList<IEditor *> &editorList = d->m_editors[editor->document()];
-    bool isNew = editorList.isEmpty();
-    if (isNewDocument)
-        *isNewDocument = isNew;
-    editorList << editor;
-    if (isNew) {
-        Entry *entry = new Entry;
-        entry->document = editor->document();
-        d->addEntry(entry);
-    }
-}
-
-void DocumentModel::addSuspendedDocument(const QString &fileName, const QString &displayName, Id id)
-{
-    Entry *entry = new Entry;
-    entry->document = new IDocument;
-    entry->document->setFilePath(Utils::FileName::fromString(fileName));
-    entry->document->setPreferredDisplayName(displayName);
-    entry->document->setId(id);
-    entry->isSuspended = true;
-    d->addEntry(entry);
-}
-
-DocumentModel::Entry *DocumentModel::firstSuspendedEntry()
-{
-    return Utils::findOrDefault(d->m_entries, [](Entry *entry) { return entry->isSuspended; });
-}
-
 void DocumentModelPrivate::addEntry(DocumentModel::Entry *entry)
 {
     const Utils::FileName fileName = entry->fileName();
@@ -247,7 +98,7 @@ void DocumentModelPrivate::addEntry(DocumentModel::Entry *entry)
         int cmp = displayName.localeAwareCompare(m_entries.at(index)->plainDisplayName());
         if (cmp < 0)
             break;
-        if (cmp == 0 && fileName < d->m_entries.at(index)->fileName())
+        if (cmp == 0 && fileName < m_entries.at(index)->fileName())
             break;
     }
     int row = index + 1/*<no document>*/;
@@ -338,15 +189,173 @@ int DocumentModelPrivate::indexOfFilePath(const Utils::FileName &filePath) const
     return m_entries.indexOf(m_entryByFixedPath.value(fixedPath));
 }
 
-void DocumentModel::removeEntry(DocumentModel::Entry *entry)
+void DocumentModelPrivate::removeDocument(int idx)
 {
-    // For non suspended entries, we wouldn't know what to do with the associated editors
-    QTC_ASSERT(entry->isSuspended, return);
-    int index = d->m_entries.indexOf(entry);
-    d->removeDocument(index);
+    if (idx < 0)
+        return;
+    QTC_ASSERT(idx < m_entries.size(), return);
+    int row = idx + 1/*<no document>*/;
+    beginRemoveRows(QModelIndex(), row, row);
+    DocumentModel::Entry *entry = m_entries.takeAt(idx);
+    endRemoveRows();
+
+    const QString fileName = entry->fileName().toString();
+    if (!fileName.isEmpty()) {
+        const QString fixedPath = DocumentManager::fixFileName(fileName,
+                                                               DocumentManager::ResolveLinks);
+        m_entryByFixedPath.remove(fixedPath);
+    }
+    disconnect(entry->document, &IDocument::changed, this, &DocumentModelPrivate::itemChanged);
+    disambiguateDisplayNames(entry);
+    delete entry;
+}
+
+int DocumentModelPrivate::indexOfDocument(IDocument *document) const
+{
+    return Utils::indexOf(m_entries, [&document](DocumentModel::Entry *entry) {
+        return entry->document == document;
+    });
+}
+
+Qt::ItemFlags DocumentModelPrivate::flags(const QModelIndex &index) const
+{
+    const DocumentModel::Entry *e = DocumentModel::entryAtRow(index.row());
+    if (!e || e->fileName().isEmpty())
+        return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+    return Qt::ItemIsDragEnabled | Qt::ItemIsEnabled | Qt::ItemIsSelectable;
+}
+
+QMimeData *DocumentModelPrivate::mimeData(const QModelIndexList &indexes) const
+{
+    auto data = new Utils::DropMimeData;
+    foreach (const QModelIndex &index, indexes) {
+        const DocumentModel::Entry *e = DocumentModel::entryAtRow(index.row());
+        if (!e || e->fileName().isEmpty())
+            continue;
+        data->addFile(e->fileName().toString());
+    }
+    return data;
+}
+
+QModelIndex DocumentModelPrivate::index(int row, int column, const QModelIndex &parent) const
+{
+    Q_UNUSED(parent)
+    if (column < 0 || column > 1 || row < 0 || row >= m_entries.count() + 1/*<no document>*/)
+        return QModelIndex();
+    return createIndex(row, column);
+}
+
+Qt::DropActions DocumentModelPrivate::supportedDragActions() const
+{
+    return Qt::MoveAction;
+}
+
+QStringList DocumentModelPrivate::mimeTypes() const
+{
+    return Utils::DropSupport::mimeTypesForFilePaths();
+}
+
+QVariant DocumentModelPrivate::data(const QModelIndex &index, int role) const
+{
+    if (!index.isValid() || (index.column() != 0 && role < Qt::UserRole))
+        return QVariant();
+    const DocumentModel::Entry *entry = DocumentModel::entryAtRow(index.row());
+    if (!entry) {
+        // <no document> entry
+        switch (role) {
+        case Qt::DisplayRole:
+            return tr("<no document>");
+        case Qt::ToolTipRole:
+            return tr("No document is selected.");
+        default:
+            return QVariant();
+        }
+    }
+    switch (role) {
+    case Qt::DisplayRole: {
+        QString name = entry->displayName();
+        if (entry->document->isModified())
+            name += QLatin1Char('*');
+        return name;
+    }
+    case Qt::DecorationRole:
+        return entry->document->isFileReadOnly() ? lockedIcon() : QIcon();
+    case Qt::ToolTipRole:
+        return entry->fileName().isEmpty() ? entry->displayName() : entry->fileName().toUserOutput();
+    default:
+        return QVariant();
+    }
+    return QVariant();
 }
 
-void DocumentModel::removeEditor(IEditor *editor, bool *lastOneForDocument)
+void DocumentModelPrivate::itemChanged()
+{
+    IDocument *document = qobject_cast<IDocument *>(sender());
+
+    int idx = indexOfDocument(document);
+    if (idx < 0)
+        return;
+    const QString fileName = document->filePath().toString();
+    QString fixedPath;
+    if (!fileName.isEmpty())
+        fixedPath = DocumentManager::fixFileName(fileName, DocumentManager::ResolveLinks);
+    DocumentModel::Entry *entry = m_entries.at(idx);
+    bool found = false;
+    // The entry's fileName might have changed, so find the previous fileName that was associated
+    // with it and remove it, then add the new fileName.
+    for (auto it = m_entryByFixedPath.begin(), end = m_entryByFixedPath.end(); it != end; ++it) {
+        if (it.value() == entry) {
+            found = true;
+            if (it.key() != fixedPath) {
+                m_entryByFixedPath.remove(it.key());
+                if (!fixedPath.isEmpty())
+                    m_entryByFixedPath[fixedPath] = entry;
+            }
+            break;
+        }
+    }
+    if (!found && !fixedPath.isEmpty())
+        m_entryByFixedPath[fixedPath] = entry;
+    if (!disambiguateDisplayNames(m_entries.at(idx))) {
+        QModelIndex mindex = index(idx + 1/*<no document>*/, 0);
+        emit dataChanged(mindex, mindex);
+    }
+}
+
+void DocumentModelPrivate::addEditor(IEditor *editor, bool *isNewDocument)
+{
+    if (!editor)
+        return;
+
+    QList<IEditor *> &editorList = d->m_editors[editor->document()];
+    bool isNew = editorList.isEmpty();
+    if (isNewDocument)
+        *isNewDocument = isNew;
+    editorList << editor;
+    if (isNew) {
+        auto entry = new DocumentModel::Entry;
+        entry->document = editor->document();
+        d->addEntry(entry);
+    }
+}
+
+void DocumentModelPrivate::addSuspendedDocument(const QString &fileName, const QString &displayName, Id id)
+{
+    auto entry = new DocumentModel::Entry;
+    entry->document = new IDocument;
+    entry->document->setFilePath(Utils::FileName::fromString(fileName));
+    entry->document->setPreferredDisplayName(displayName);
+    entry->document->setId(id);
+    entry->isSuspended = true;
+    d->addEntry(entry);
+}
+
+DocumentModel::Entry *DocumentModelPrivate::firstSuspendedEntry()
+{
+    return Utils::findOrDefault(d->m_entries, [](DocumentModel::Entry *entry) { return entry->isSuspended; });
+}
+
+void DocumentModelPrivate::removeEditor(IEditor *editor, bool *lastOneForDocument)
 {
     if (lastOneForDocument)
         *lastOneForDocument = false;
@@ -358,32 +367,19 @@ void DocumentModel::removeEditor(IEditor *editor, bool *lastOneForDocument)
         if (lastOneForDocument)
             *lastOneForDocument = true;
         d->m_editors.remove(document);
-        d->removeDocument(indexOfDocument(document));
+        d->removeDocument(DocumentModel::indexOfDocument(document));
     }
 }
 
-void DocumentModelPrivate::removeDocument(int idx)
+void DocumentModelPrivate::removeEntry(DocumentModel::Entry *entry)
 {
-    if (idx < 0)
-        return;
-    QTC_ASSERT(idx < d->m_entries.size(), return);
-    int row = idx + 1/*<no document>*/;
-    beginRemoveRows(QModelIndex(), row, row);
-    DocumentModel::Entry *entry = d->m_entries.takeAt(idx);
-    endRemoveRows();
-
-    const QString fileName = entry->fileName().toString();
-    if (!fileName.isEmpty()) {
-        const QString fixedPath = DocumentManager::fixFileName(fileName,
-                                                               DocumentManager::ResolveLinks);
-        m_entryByFixedPath.remove(fixedPath);
-    }
-    disconnect(entry->document, &IDocument::changed, this, &DocumentModelPrivate::itemChanged);
-    disambiguateDisplayNames(entry);
-    delete entry;
+    // For non suspended entries, we wouldn't know what to do with the associated editors
+    QTC_ASSERT(entry->isSuspended, return);
+    int index = d->m_entries.indexOf(entry);
+    d->removeDocument(index);
 }
 
-void DocumentModel::removeAllSuspendedEntries()
+void DocumentModelPrivate::removeAllSuspendedEntries()
 {
     for (int i = d->m_entries.count()-1; i >= 0; --i) {
         if (d->m_entries.at(i)->isSuspended) {
@@ -403,6 +399,87 @@ void DocumentModel::removeAllSuspendedEntries()
     }
 }
 
+DocumentModelPrivate::DynamicEntry::DynamicEntry(DocumentModel::Entry *e) :
+    entry(e),
+    pathComponents(0)
+{
+}
+
+DocumentModel::Entry *DocumentModelPrivate::DynamicEntry::operator->() const
+{
+    return entry;
+}
+
+void DocumentModelPrivate::DynamicEntry::disambiguate()
+{
+    entry->document->setUniqueDisplayName(entry->fileName().fileName(++pathComponents));
+}
+
+void DocumentModelPrivate::DynamicEntry::setNumberedName(int number)
+{
+    entry->document->setUniqueDisplayName(QStringLiteral("%1 (%2)")
+                                          .arg(entry->document->displayName())
+                                          .arg(number));
+}
+
+} // Internal
+
+DocumentModel::Entry::Entry() :
+    document(0),
+    isSuspended(false)
+{
+}
+
+DocumentModel::Entry::~Entry()
+{
+    if (isSuspended)
+        delete document;
+}
+
+DocumentModel::DocumentModel()
+{
+}
+
+void DocumentModel::init()
+{
+    d = new Internal::DocumentModelPrivate;
+}
+
+void DocumentModel::destroy()
+{
+    delete d;
+}
+
+QIcon DocumentModel::lockedIcon()
+{
+    return Internal::DocumentModelPrivate::lockedIcon();
+}
+
+QAbstractItemModel *DocumentModel::model()
+{
+    return d;
+}
+
+Utils::FileName DocumentModel::Entry::fileName() const
+{
+    return document->filePath();
+}
+
+QString DocumentModel::Entry::displayName() const
+{
+    return document->displayName();
+}
+
+QString DocumentModel::Entry::plainDisplayName() const
+{
+    return document->plainDisplayName();
+}
+
+Id DocumentModel::Entry::id() const
+{
+    return document->id();
+}
+
 QList<IEditor *> DocumentModel::editorsForDocument(IDocument *document)
 {
     return d->m_editors.value(document);
@@ -426,13 +503,6 @@ int DocumentModel::indexOfDocument(IDocument *document)
     return d->indexOfDocument(document);
 }
 
-int DocumentModelPrivate::indexOfDocument(IDocument *document) const
-{
-    return Utils::indexOf(m_entries, [&document](DocumentModel::Entry *entry) {
-        return entry->document == document;
-    });
-}
-
 DocumentModel::Entry *DocumentModel::entryForDocument(IDocument *document)
 {
     return Utils::findOrDefault(d->m_entries,
@@ -468,24 +538,6 @@ QList<IEditor *> DocumentModel::editorsForFilePath(const QString &filePath)
     return QList<IEditor *>();
 }
 
-QModelIndex DocumentModelPrivate::index(int row, int column, const QModelIndex &parent) const
-{
-    Q_UNUSED(parent)
-    if (column < 0 || column > 1 || row < 0 || row >= m_entries.count() + 1/*<no document>*/)
-        return QModelIndex();
-    return createIndex(row, column);
-}
-
-Qt::DropActions DocumentModelPrivate::supportedDragActions() const
-{
-    return Qt::MoveAction;
-}
-
-QStringList DocumentModelPrivate::mimeTypes() const
-{
-    return Utils::DropSupport::mimeTypesForFilePaths();
-}
-
 DocumentModel::Entry *DocumentModel::entryAtRow(int row)
 {
     int entryIndex = row - 1/*<no document>*/;
@@ -499,59 +551,6 @@ int DocumentModel::entryCount()
     return d->m_entries.count();
 }
 
-QVariant DocumentModelPrivate::data(const QModelIndex &index, int role) const
-{
-    if (!index.isValid() || (index.column() != 0 && role < Qt::UserRole))
-        return QVariant();
-    const DocumentModel::Entry *entry = DocumentModel::entryAtRow(index.row());
-    if (!entry) {
-        // <no document> entry
-        switch (role) {
-        case Qt::DisplayRole:
-            return tr("<no document>");
-        case Qt::ToolTipRole:
-            return tr("No document is selected.");
-        default:
-            return QVariant();
-        }
-    }
-    switch (role) {
-    case Qt::DisplayRole: {
-        QString name = entry->displayName();
-        if (entry->document->isModified())
-            name += QLatin1Char('*');
-        return name;
-    }
-    case Qt::DecorationRole:
-        return entry->document->isFileReadOnly() ? lockedIcon() : QIcon();
-    case Qt::ToolTipRole:
-        return entry->fileName().isEmpty() ? entry->displayName() : entry->fileName().toUserOutput();
-    default:
-        return QVariant();
-    }
-    return QVariant();
-}
-
-Qt::ItemFlags DocumentModelPrivate::flags(const QModelIndex &index) const
-{
-    const DocumentModel::Entry *e = DocumentModel::entryAtRow(index.row());
-    if (!e || e->fileName().isEmpty())
-        return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
-    return Qt::ItemIsDragEnabled | Qt::ItemIsEnabled | Qt::ItemIsSelectable;
-}
-
-QMimeData *DocumentModelPrivate::mimeData(const QModelIndexList &indexes) const
-{
-    auto data = new Utils::DropMimeData;
-    foreach (const QModelIndex &index, indexes) {
-        const DocumentModel::Entry *e = DocumentModel::entryAtRow(index.row());
-        if (!e || e->fileName().isEmpty())
-            continue;
-        data->addFile(e->fileName().toString());
-    }
-    return data;
-}
-
 int DocumentModel::rowOfDocument(IDocument *document)
 {
     if (!document)
@@ -559,45 +558,9 @@ int DocumentModel::rowOfDocument(IDocument *document)
     return indexOfDocument(document) + 1/*<no document>*/;
 }
 
-void DocumentModelPrivate::itemChanged()
-{
-    IDocument *document = qobject_cast<IDocument *>(sender());
-
-    int idx = indexOfDocument(document);
-    if (idx < 0)
-        return;
-    const QString fileName = document->filePath().toString();
-    QString fixedPath;
-    if (!fileName.isEmpty())
-        fixedPath = DocumentManager::fixFileName(fileName, DocumentManager::ResolveLinks);
-    DocumentModel::Entry *entry = d->m_entries.at(idx);
-    bool found = false;
-    // The entry's fileName might have changed, so find the previous fileName that was associated
-    // with it and remove it, then add the new fileName.
-    for (auto it = m_entryByFixedPath.begin(), end = m_entryByFixedPath.end(); it != end; ++it) {
-        if (it.value() == entry) {
-            found = true;
-            if (it.key() != fixedPath) {
-                m_entryByFixedPath.remove(it.key());
-                if (!fixedPath.isEmpty())
-                    m_entryByFixedPath[fixedPath] = entry;
-            }
-            break;
-        }
-    }
-    if (!found && !fixedPath.isEmpty())
-        m_entryByFixedPath[fixedPath] = entry;
-    if (!disambiguateDisplayNames(d->m_entries.at(idx))) {
-        QModelIndex mindex = index(idx + 1/*<no document>*/, 0);
-        emit dataChanged(mindex, mindex);
-    }
-}
-
 QList<DocumentModel::Entry *> DocumentModel::entries()
 {
     return d->m_entries;
 }
 
 } // namespace Core
-
-#include "documentmodel.moc"
diff --git a/src/plugins/coreplugin/editormanager/documentmodel.h b/src/plugins/coreplugin/editormanager/documentmodel.h
index 2dcbe4c698..e0b14ed3aa 100644
--- a/src/plugins/coreplugin/editormanager/documentmodel.h
+++ b/src/plugins/coreplugin/editormanager/documentmodel.h
@@ -78,14 +78,6 @@ public:
     static QList<IEditor *> editorsForDocuments(const QList<IDocument *> &entries);
     static QList<IEditor *> editorsForOpenedDocuments();
 
-    // editor manager related functions, nobody else should call it
-    static void addEditor(IEditor *editor, bool *isNewDocument);
-    static void addSuspendedDocument(const QString &fileName, const QString &displayName, Id id);
-    static Entry *firstSuspendedEntry();
-    static void removeEditor(IEditor *editor, bool *lastOneForDocument);
-    static void removeEntry(Entry *entry);
-    static void removeAllSuspendedEntries();
-
 private:
     DocumentModel();
 };
diff --git a/src/plugins/coreplugin/editormanager/documentmodel_p.h b/src/plugins/coreplugin/editormanager/documentmodel_p.h
new file mode 100644
index 0000000000..9abed04fad
--- /dev/null
+++ b/src/plugins/coreplugin/editormanager/documentmodel_p.h
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** 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 The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+#pragma once
+
+#include "documentmodel.h"
+#include "ieditor.h"
+
+#include <QAbstractItemModel>
+#include <QHash>
+#include <QIcon>
+#include <QList>
+#include <QMap>
+
+namespace Core {
+namespace Internal {
+
+class DocumentModelPrivate : public QAbstractItemModel
+{
+    Q_OBJECT
+
+public:
+    ~DocumentModelPrivate();
+
+    int columnCount(const QModelIndex &parent = QModelIndex()) const override;
+    QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+    Qt::ItemFlags flags(const QModelIndex &index) const override;
+    QMimeData *mimeData(const QModelIndexList &indexes) const override;
+    QModelIndex parent(const QModelIndex &/*index*/) const override { return QModelIndex(); }
+    int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+    QModelIndex index(int row, int column = 0, const QModelIndex &parent = QModelIndex()) const override;
+
+    Qt::DropActions supportedDragActions() const override;
+    QStringList mimeTypes() const override;
+
+    void addEntry(DocumentModel::Entry *entry);
+    void removeDocument(int idx);
+
+    int indexOfFilePath(const Utils::FileName &filePath) const;
+    int indexOfDocument(IDocument *document) const;
+
+    bool disambiguateDisplayNames(DocumentModel::Entry *entry);
+
+    static QIcon lockedIcon();
+    static void addEditor(IEditor *editor, bool *isNewDocument);
+    static void addSuspendedDocument(const QString &fileName, const QString &displayName, Id id);
+    static DocumentModel::Entry *firstSuspendedEntry();
+    static void removeEditor(IEditor *editor, bool *lastOneForDocument);
+    static void removeEntry(DocumentModel::Entry *entry);
+    static void removeAllSuspendedEntries();
+
+    void itemChanged();
+
+    class DynamicEntry
+    {
+    public:
+        DocumentModel::Entry *entry;
+        int pathComponents;
+
+        DynamicEntry(DocumentModel::Entry *e);
+        DocumentModel::Entry *operator->() const;
+        void disambiguate();
+        void setNumberedName(int number);
+    };
+
+    QList<DocumentModel::Entry *> m_entries;
+    QMap<IDocument *, QList<IEditor *> > m_editors;
+    QHash<QString, DocumentModel::Entry *> m_entryByFixedPath;
+};
+
+} // Internal
+} // Core
diff --git a/src/plugins/coreplugin/editormanager/editormanager.cpp b/src/plugins/coreplugin/editormanager/editormanager.cpp
index 8719936d2f..2ee878bd34 100644
--- a/src/plugins/coreplugin/editormanager/editormanager.cpp
+++ b/src/plugins/coreplugin/editormanager/editormanager.cpp
@@ -31,6 +31,7 @@
 #include "openeditorswindow.h"
 #include "openeditorsview.h"
 #include "documentmodel.h"
+#include "documentmodel_p.h"
 #include "ieditor.h"
 
 #include <coreplugin/actionmanager/actioncontainer.h>
@@ -1130,7 +1131,7 @@ void EditorManagerPrivate::addEditor(IEditor *editor)
     ICore::addContextObject(editor);
 
     bool isNewDocument = false;
-    DocumentModel::addEditor(editor, &isNewDocument);
+    DocumentModelPrivate::addEditor(editor, &isNewDocument);
     if (isNewDocument) {
         const bool isTemporary = editor->document()->isTemporary();
         const bool addWatcher = !isTemporary;
@@ -1145,7 +1146,7 @@ void EditorManagerPrivate::addEditor(IEditor *editor)
 void EditorManagerPrivate::removeEditor(IEditor *editor)
 {
     bool lastOneForDocument = false;
-    DocumentModel::removeEditor(editor, &lastOneForDocument);
+    DocumentModelPrivate::removeEditor(editor, &lastOneForDocument);
     if (lastOneForDocument)
         DocumentManager::removeDocument(editor->document());
     ICore::removeContextObject(editor);
@@ -1252,7 +1253,7 @@ bool EditorManagerPrivate::activateEditorForEntry(EditorView *view, DocumentMode
     }
 
     if (!openEditor(view, entry->fileName().toString(), entry->id(), flags)) {
-        DocumentModel::removeEntry(entry);
+        DocumentModelPrivate::removeEntry(entry);
         return false;
     }
     return true;
@@ -1975,7 +1976,7 @@ bool EditorManagerPrivate::saveDocumentAs(IDocument *document)
 
 void EditorManagerPrivate::closeAllEditorsExceptVisible()
 {
-    DocumentModel::removeAllSuspendedEntries();
+    DocumentModelPrivate::removeAllSuspendedEntries();
     QList<IDocument *> documentsToClose = DocumentModel::openedDocuments();
     foreach (IEditor *editor, EditorManager::visibleEditors())
         documentsToClose.removeAll(editor->document());
@@ -2118,7 +2119,7 @@ IEditor *EditorManager::currentEditor()
 
 bool EditorManager::closeAllEditors(bool askAboutModifiedEditors)
 {
-    DocumentModel::removeAllSuspendedEntries();
+    DocumentModelPrivate::removeAllSuspendedEntries();
     if (closeDocuments(DocumentModel::openedDocuments(), askAboutModifiedEditors))
         return true;
     return false;
@@ -2126,7 +2127,7 @@ bool EditorManager::closeAllEditors(bool askAboutModifiedEditors)
 
 void EditorManager::closeOtherDocuments(IDocument *document)
 {
-    DocumentModel::removeAllSuspendedEntries();
+    DocumentModelPrivate::removeAllSuspendedEntries();
     QList<IDocument *> documentsToClose = DocumentModel::openedDocuments();
     documentsToClose.removeAll(document);
     closeDocuments(documentsToClose, true);
@@ -2310,7 +2311,7 @@ void EditorManager::closeDocument(DocumentModel::Entry *entry)
     if (!entry)
         return;
     if (entry->isSuspended)
-        DocumentModel::removeEntry(entry);
+        DocumentModelPrivate::removeEntry(entry);
     else
         closeDocuments(QList<IDocument *>() << entry->document);
 }
@@ -2421,7 +2422,7 @@ bool EditorManager::closeEditors(const QList<IEditor*> &editorsToClose, bool ask
         if (newCurrent) {
             EditorManagerPrivate::activateEditor(view, newCurrent, DoNotChangeCurrentEditor);
         } else if (forceViewToShowEditor == view) {
-            DocumentModel::Entry *entry = DocumentModel::firstSuspendedEntry();
+            DocumentModel::Entry *entry = DocumentModelPrivate::firstSuspendedEntry();
             if (entry) {
                 EditorManagerPrivate::activateEditorForEntry(view, entry, DoNotChangeCurrentEditor);
             } else { // no "suspended" ones, so any entry left should have a document
@@ -2886,7 +2887,7 @@ bool EditorManager::restoreState(const QByteArray &state)
             if (rfi.exists() && fi.lastModified() < rfi.lastModified())
                 openEditor(fileName, id, DoNotMakeVisible);
             else
-                DocumentModel::addSuspendedDocument(fileName, displayName, id);
+                DocumentModelPrivate::addSuspendedDocument(fileName, displayName, id);
         }
     }
 
diff --git a/src/plugins/coreplugin/editormanager/editorview.cpp b/src/plugins/coreplugin/editormanager/editorview.cpp
index 857d95404f..2129740d19 100644
--- a/src/plugins/coreplugin/editormanager/editorview.cpp
+++ b/src/plugins/coreplugin/editormanager/editorview.cpp
@@ -28,6 +28,7 @@
 #include "editormanager.h"
 #include "editormanager_p.h"
 #include "documentmodel.h"
+#include "documentmodel_p.h"
 
 #include <coreplugin/actionmanager/actionmanager.h>
 #include <coreplugin/editortoolbar.h>
@@ -920,7 +921,7 @@ void SplitterOrView::restoreState(const QByteArray &state)
                                                       | EditorManager::DoNotChangeCurrentEditor);
 
         if (!e) {
-            DocumentModel::Entry *entry = DocumentModel::firstSuspendedEntry();
+            DocumentModel::Entry *entry = DocumentModelPrivate::firstSuspendedEntry();
             if (entry) {
                 EditorManagerPrivate::activateEditorForEntry(view(), entry,
                     EditorManager::IgnoreNavigationHistory | EditorManager::DoNotChangeCurrentEditor);