Snippets: Remove the snippets manager

Let the collection itself be the singleton.

src/plugins/texteditor/snippets/snippetcollector.cpp

@@ -28,7 +28,6 @@
 **************************************************************************/
 
 #include "snippetcollector.h"
-#include "snippetsmanager.h"
 #include "snippetscollection.h"
 
 #include <texteditor/texteditorconstants.h>
@@ -44,8 +43,7 @@ void appendSnippets(ICompletionCollector *collector,
                     const QIcon &icon,
                     int order)
 {
-    QSharedPointer<SnippetsCollection> collection =
-        SnippetsManager::instance()->snippetsCollection();
+    SnippetsCollection *collection = SnippetsCollection::instance();
     const int size = collection->totalActiveSnippets(groupId);
     for (int i = 0; i < size; ++i) {
         const Snippet &snippet = collection->snippet(i, groupId);

src/plugins/texteditor/snippets/snippetscollection.cpp

@@ -98,6 +98,12 @@ int SnippetsCollection::Hint::index() const
     return m_index;
 }
 
+SnippetsCollection *SnippetsCollection::instance()
+{
+    static SnippetsCollection collection;
+    return &collection;
+}
+
 // SnippetsCollection
 SnippetsCollection::SnippetsCollection() :
     m_userSnippetsPath(Core::ICore::instance()->userResourcePath() + QLatin1String("/snippets/")),

src/plugins/texteditor/snippets/snippetscollection.h

@@ -54,8 +54,9 @@ class SnippetsCollection : public QObject
 {
     Q_OBJECT
 public:
-    SnippetsCollection();
-    ~SnippetsCollection();
+    virtual ~SnippetsCollection();
+
+    static SnippetsCollection *instance();
 
     class Hint
     {
@@ -100,6 +101,9 @@ private slots:
     void identifyGroups();
 
 private:
+    SnippetsCollection();
+    Q_DISABLE_COPY(SnippetsCollection)
+
     int groupIndex(const QString &groupId) const;
     bool isGroupKnown(const QString &groupId) const;
 
@@ -123,7 +127,8 @@ private:
     static const QLatin1String kModified;
 
     // Built-in snippets are specified in XMLs distributed in a system's folder. Snippets
-    // created or modified/removed (if they are built-ins) by the user are stored in another
+    // created or modified/removed (if they are built-ins) by the user are stored in user's
+    // folder.
     QString m_userSnippetsPath;
     QString m_userSnippetsFile;
     QStringList m_builtInSnippetsFiles;

src/plugins/texteditor/snippets/snippetsmanager.cpp

-/**************************************************************************
-**
-** This file is part of Qt Creator
-**
-** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
-**
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** Commercial Usage
-**
-** Licensees holding valid Qt Commercial licenses may use this file in
-** accordance with the Qt Commercial License Agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Nokia.
-**
-** 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 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at http://qt.nokia.com/contact.
-**
-**************************************************************************/
-
-#include "snippetsmanager.h"
-#include "snippetscollection.h"
-
-using namespace TextEditor;
-using namespace Internal;
-
-SnippetsManager::SnippetsManager() :
-    m_collection(new SnippetsCollection)
-{
-    m_collection->reload();
-}
-
-SnippetsManager::~SnippetsManager()
-{}
-
-SnippetsManager *SnippetsManager::instance()
-{
-    static SnippetsManager manager;
-    return &manager;
-}
-
-QSharedPointer<SnippetsCollection> SnippetsManager::snippetsCollection() const
-{
-    return m_collection;
-}

src/plugins/texteditor/snippets/snippetsmanager.h

-/**************************************************************************
-**
-** This file is part of Qt Creator
-**
-** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
-**
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** Commercial Usage
-**
-** Licensees holding valid Qt Commercial licenses may use this file in
-** accordance with the Qt Commercial License Agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Nokia.
-**
-** 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 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file.  Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at http://qt.nokia.com/contact.
-**
-**************************************************************************/
-
-#ifndef SNIPPETSMANAGER_H
-#define SNIPPETSMANAGER_H
-
-#include <QtCore/QSharedPointer>
-
-namespace TextEditor {
-
-class ISnippetProvider;
-
-namespace Internal {
-
-class SnippetsCollection;
-
-class SnippetsManager
-{
-private:
-    SnippetsManager();
-    Q_DISABLE_COPY(SnippetsManager)
-
-public:
-    ~SnippetsManager();
-
-    static SnippetsManager *instance();
-
-    QSharedPointer<SnippetsCollection> snippetsCollection() const;
-
-private:
-    QSharedPointer<SnippetsCollection> m_collection;
-};
-
-} // Internal
-} // TextEditor
-
-#endif // SNIPPETSMANAGER_H

src/plugins/texteditor/snippets/snippetssettingspage.cpp

@@ -28,7 +28,6 @@
 **************************************************************************/
 
 #include "snippetssettingspage.h"
-#include "snippetsmanager.h"
 #include "snippeteditor.h"
 #include "isnippetprovider.h"
 #include "snippet.h"
@@ -40,7 +39,6 @@
 #include <coreplugin/icore.h>
 #include <extensionsystem/pluginmanager.h>
 
-#include <QtCore/QSharedPointer>
 #include <QtCore/QModelIndex>
 #include <QtCore/QAbstractTableModel>
 #include <QtCore/QList>
@@ -85,26 +83,22 @@ private:
     void replaceSnippet(const Snippet &snippet, const QModelIndex &modelIndex);
     static bool isValidTrigger(const QString &s);
 
-    QSharedPointer<SnippetsCollection> m_collection;
+    SnippetsCollection* m_collection;
     QString m_activeGroupId;
 };
 
 SnippetsTableModel::SnippetsTableModel(QObject *parent) :
     QAbstractTableModel(parent),
-    m_collection(SnippetsManager::instance()->snippetsCollection())
+    m_collection(SnippetsCollection::instance())
 {}
 
 int SnippetsTableModel::rowCount(const QModelIndex &) const
 {
-    if (m_collection.isNull())
-        return 0;
     return m_collection->totalActiveSnippets(m_activeGroupId);
 }
 
 int SnippetsTableModel::columnCount(const QModelIndex &) const
 {
-    if (m_collection.isNull())
-        return 0;
     return 2;
 }
 
@@ -390,7 +384,7 @@ void SnippetsSettingsPagePrivate::apply()
         writeSettings();
 
     if (m_snippetsCollectionChanged) {
-        SnippetsManager::instance()->snippetsCollection()->synchronize();
+        SnippetsCollection::instance()->synchronize();
         m_snippetsCollectionChanged = false;
     }
 }
@@ -398,7 +392,7 @@ void SnippetsSettingsPagePrivate::apply()
 void SnippetsSettingsPagePrivate::finish()
 {
     if (m_snippetsCollectionChanged) {
-        SnippetsManager::instance()->snippetsCollection()->reload();
+        SnippetsCollection::instance()->reload();
         m_snippetsCollectionChanged = false;
     }
 }

src/plugins/texteditor/texteditor.pro

@@ -75,7 +75,6 @@ SOURCES += texteditorplugin.cpp \
     autocompleter.cpp \
     snippets/snippetssettingspage.cpp \
     snippets/snippet.cpp \
-    snippets/snippetsmanager.cpp \
     snippets/snippeteditor.cpp \
     snippets/snippetscollection.cpp \
     snippets/snippetssettings.cpp \
@@ -158,7 +157,6 @@ HEADERS += texteditorplugin.h \
     autocompleter.h \
     snippets/snippetssettingspage.h \
     snippets/snippet.h \
-    snippets/snippetsmanager.h \
     snippets/snippeteditor.h \
     snippets/snippetscollection.h \
     snippets/reuse.h \