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[dolphin.git] / src / views / versioncontrol / versioncontrolobserver.cpp

diff --git a/src/views/versioncontrol/versioncontrolobserver.cpp b/src/views/versioncontrol/versioncontrolobserver.cpp
index 64bc268679df0c7218f38c1a11ae4b9a7f9e115a..28fbbef1a485968bf6f1b105581afa47086ab3a7 100644 (file)
--- a/src/views/versioncontrol/versioncontrolobserver.cpp
+++ b/src/views/versioncontrol/versioncontrolobserver.cpp
@@ -1,47 +1,33 @@
-/***************************************************************************
- *   Copyright (C) 2009 by Peter Penz <peter.penz19@gmail.com>             *
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- *   This program is distributed in the hope that it will be useful,       *
- *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
- *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
- *   GNU General Public License for more details.                          *
- *                                                                         *
- *   You should have received a copy of the GNU General Public License     *
- *   along with this program; if not, write to the                         *
- *   Free Software Foundation, Inc.,                                       *
- *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
- ***************************************************************************/
+/*
+ * SPDX-FileCopyrightText: 2009 Peter Penz <peter.penz19@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */

 
 #include "versioncontrolobserver.h"
 
 #include "dolphin_versioncontrolsettings.h"
 
 #include "versioncontrolobserver.h"
 
 #include "dolphin_versioncontrolsettings.h"

-
-#include <KLocale>
-#include <KService>
-#include <KServiceTypeTrader>
-#include <kitemviews/kfileitemmodel.h>
-#include <kversioncontrolplugin2.h>
-
+#include "dolphindebug.h"
+#include "kitemviews/kfileitemmodel.h"

 #include "updateitemstatesthread.h"
 #include "updateitemstatesthread.h"

+#include "views/dolphinview.h"
+
+#include <KLocalizedString>
+#include <KPluginFactory>
+#include <KPluginMetaData>

 
 

-#include <QFile>
-#include <QMutexLocker>

 #include <QTimer>
 
 #include <QTimer>
 

-VersionControlObserver::VersionControlObserver(QObject* parent) :
-    QObject(parent),
-    m_pendingItemStatesUpdate(false),
-    m_versionedDirectory(false),
-    m_silentUpdate(false),
-    m_model(0),
-    m_dirVerificationTimer(0),
-    m_plugin(0),
-    m_updateItemStatesThread(0)
+VersionControlObserver::VersionControlObserver(QObject *parent)
+    : QObject(parent)
+    , m_pendingItemStatesUpdate(false)
+    , m_silentUpdate(false)
+    , m_view(nullptr)
+    , m_model(nullptr)
+    , m_dirVerificationTimer(nullptr)
+    , m_pluginsInitialized(false)
+    , m_plugin(nullptr)
+    , m_updateItemStatesThread(nullptr)

 {
     // The verification timer specifies the timeout until the shown directory
     // is checked whether it is versioned. Per default it is assumed that users
 {
     // The verification timer specifies the timeout until the shown directory
     // is checked whether it is versioned. Per default it is assumed that users


@@ -51,91 +37,79 @@ VersionControlObserver::VersionControlObserver(QObject* parent) :
     m_dirVerificationTimer = new QTimer(this);
     m_dirVerificationTimer->setSingleShot(true);
     m_dirVerificationTimer->setInterval(500);
     m_dirVerificationTimer = new QTimer(this);
     m_dirVerificationTimer->setSingleShot(true);
     m_dirVerificationTimer->setInterval(500);

-    connect(m_dirVerificationTimer, SIGNAL(timeout()),
-            this, SLOT(verifyDirectory()));
+    connect(m_dirVerificationTimer, &QTimer::timeout, this, &VersionControlObserver::verifyDirectory);

 }
 
 VersionControlObserver::~VersionControlObserver()
 {
     if (m_plugin) {
         m_plugin->disconnect(this);
 }
 
 VersionControlObserver::~VersionControlObserver()
 {
     if (m_plugin) {
         m_plugin->disconnect(this);

-        m_plugin = 0;
+        m_plugin = nullptr;

     }
 }
 
     }
 }
 

-void VersionControlObserver::setModel(KFileItemModel* model)
+void VersionControlObserver::setModel(KFileItemModel *model)

 {
     if (m_model) {
 {
     if (m_model) {

-        disconnect(m_model, SIGNAL(itemsInserted(KItemRangeList)),
-                   this, SLOT(delayedDirectoryVerification()));
-        disconnect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
-                   this, SLOT(delayedDirectoryVerification()));
+        disconnect(m_model, &KFileItemModel::itemsInserted, this, &VersionControlObserver::delayedDirectoryVerification);
+        disconnect(m_model, &KFileItemModel::itemsChanged, this, &VersionControlObserver::slotItemsChanged);

     }
 
     m_model = model;
 
     if (model) {
     }
 
     m_model = model;
 
     if (model) {

-        connect(m_model, SIGNAL(itemsInserted(KItemRangeList)),
-                this, SLOT(delayedDirectoryVerification()));
-        connect(m_model, SIGNAL(itemsChanged(KItemRangeList,QSet<QByteArray>)),
-                this, SLOT(delayedDirectoryVerification()));
+        connect(m_model, &KFileItemModel::itemsInserted, this, &VersionControlObserver::delayedDirectoryVerification);
+        connect(m_model, &KFileItemModel::itemsChanged, this, &VersionControlObserver::slotItemsChanged);

     }
 }
 
     }
 }
 

-KFileItemModel* VersionControlObserver::model() const
+KFileItemModel *VersionControlObserver::model() const

 {
     return m_model;
 }
 
 {
     return m_model;
 }
 

-QList<QAction*> VersionControlObserver::actions(const KFileItemList& items) const
+void VersionControlObserver::setView(DolphinView *view)
+{
+    if (m_view) {
+        disconnect(m_view, &DolphinView::activated, this, &VersionControlObserver::delayedDirectoryVerification);
+    }
+
+    m_view = view;
+
+    if (m_view) {
+        connect(m_view, &DolphinView::activated, this, &VersionControlObserver::delayedDirectoryVerification);
+    }
+}
+
+DolphinView *VersionControlObserver::view() const

 {
 {

-    QList<QAction*> actions;
+    return m_view;
+}

 
 

+QList<QAction *> VersionControlObserver::actions(const KFileItemList &items) const
+{

     bool hasNullItems = false;
     bool hasNullItems = false;

-    foreach (const KFileItem& item, items) {
+    for (const KFileItem &item : items) {

         if (item.isNull()) {
         if (item.isNull()) {

-            kWarning() << "Requesting version-control-actions for empty items";
+            qCWarning(DolphinDebug) << "Requesting version-control-actions for empty items";

             hasNullItems = true;
             break;
         }
     }
 
     if (!m_model || hasNullItems) {
             hasNullItems = true;
             break;
         }
     }
 
     if (!m_model || hasNullItems) {

-        return actions;
+        return {};

     }
 
     }
 

-    KVersionControlPlugin2* pluginV2 = qobject_cast<KVersionControlPlugin2*>(m_plugin);
-    if (pluginV2) {
-        // Use version 2 of the KVersionControlPlugin which allows providing actions
-        // also for non-versioned directories.
-        if (m_updateItemStatesThread && m_updateItemStatesThread->lockPlugin()) {
-            actions = pluginV2->actions(items);
-            m_updateItemStatesThread->unlockPlugin();
-        } else {
-            actions = pluginV2->actions(items);
-        }
-    } else if (isVersioned()) {
-        // Support deprecated interfaces from KVersionControlPlugin version 1.
-        // Context menu actions where only available for versioned directories.
-        QString directory;
-        if (items.count() == 1) {
-            const KFileItem rootItem = m_model->rootItem();
-            if (!rootItem.isNull() && items.first().url() == rootItem.url()) {
-                directory = rootItem.url().path(KUrl::AddTrailingSlash);
-            }
-        }
-
-        if (m_updateItemStatesThread && m_updateItemStatesThread->lockPlugin()) {
-            actions = directory.isEmpty() ? m_plugin->contextMenuActions(items)
-                                          : m_plugin->contextMenuActions(directory);
-            m_updateItemStatesThread->unlockPlugin();
-        } else {
-            actions = directory.isEmpty() ? m_plugin->contextMenuActions(items)
-                                          : m_plugin->contextMenuActions(directory);
+    if (isVersionControlled()) {
+        return m_plugin->versionControlActions(items);
+    } else {
+        QList<QAction *> actions;
+        for (const QPointer<KVersionControlPlugin> &plugin : qAsConst(m_plugins)) {
+            actions << plugin->outOfVersionControlActions(items);

         }
         }

+        return actions;

     }
     }

-
-    return actions;

 }
 
 void VersionControlObserver::delayedDirectoryVerification()
 }
 
 void VersionControlObserver::delayedDirectoryVerification()


@@ -150,6 +124,18 @@ void VersionControlObserver::silentDirectoryVerification()
     m_dirVerificationTimer->start();
 }
 
     m_dirVerificationTimer->start();
 }
 

+void VersionControlObserver::slotItemsChanged(const KItemRangeList &itemRanges, const QSet<QByteArray> &roles)
+{
+    Q_UNUSED(itemRanges)
+
+    // Because "version" role is emitted by VCS plugin (ourselves) we don't need to
+    // analyze it and update directory item states information. So lets check if
+    // there is only "version".
+    if (!(roles.count() == 1 && roles.contains("version"))) {
+        delayedDirectoryVerification();
+    }
+}
+

 void VersionControlObserver::verifyDirectory()
 {
     if (!m_model) {
 void VersionControlObserver::verifyDirectory()
 {
     if (!m_model) {


@@ -161,72 +147,54 @@ void VersionControlObserver::verifyDirectory()
         return;
     }
 
         return;
     }
 

-    if (m_plugin) {
-        m_plugin->disconnect(this);
-    }
+    if (m_plugin != nullptr) {
+        if (!rootItem.url().path().startsWith(m_localRepoRoot) || !QFile::exists(m_localRepoRoot + '/' + m_plugin->fileName())) {
+            m_plugin = nullptr;

 
 

-    m_plugin = searchPlugin(rootItem.url());
-    if (m_plugin) {
-        KVersionControlPlugin2* pluginV2 = qobject_cast<KVersionControlPlugin2*>(m_plugin);
-        if (pluginV2) {
-            connect(pluginV2, SIGNAL(itemVersionsChanged()),
-                    this, SLOT(silentDirectoryVerification()));
+            // The directory is not versioned. Reset the verification timer to a higher
+            // value, so that browsing through non-versioned directories is not slown down
+            // by an immediate verification.
+            m_dirVerificationTimer->setInterval(500);

         } else {
         } else {

-            connect(m_plugin, SIGNAL(versionStatesChanged()),
-                    this, SLOT(silentDirectoryVerification()));
-        }
-        connect(m_plugin, SIGNAL(infoMessage(QString)),
-                this, SIGNAL(infoMessage(QString)));
-        connect(m_plugin, SIGNAL(errorMessage(QString)),
-                this, SIGNAL(errorMessage(QString)));
-        connect(m_plugin, SIGNAL(operationCompletedMessage(QString)),
-                this, SIGNAL(operationCompletedMessage(QString)));
-
-        if (!m_versionedDirectory) {
-            m_versionedDirectory = true;
-
-            // The directory is versioned. Assume that the user will further browse through
-            // versioned directories and decrease the verification timer.
-            m_dirVerificationTimer->setInterval(100);
+            // View was versioned but should not be anymore
+            updateItemStates();

         }
         }

+    } else if ((m_plugin = searchPlugin(rootItem.url()))) {
+        // The directory is versioned. Assume that the user will further browse through
+        // versioned directories and decrease the verification timer.
+        m_dirVerificationTimer->setInterval(100);

         updateItemStates();
         updateItemStates();

-    } else if (m_versionedDirectory) {
-        m_versionedDirectory = false;
-
-        // The directory is not versioned. Reset the verification timer to a higher
-        // value, so that browsing through non-versioned directories is not slown down
-        // by an immediate verification.
-        m_dirVerificationTimer->setInterval(500);

     }
 }
 
 void VersionControlObserver::slotThreadFinished()
 {
     }
 }
 
 void VersionControlObserver::slotThreadFinished()
 {

-    UpdateItemStatesThread* thread = m_updateItemStatesThread;
-    m_updateItemStatesThread = 0; // The thread deletes itself automatically (see updateItemStates())
+    UpdateItemStatesThread *thread = m_updateItemStatesThread;
+    m_updateItemStatesThread = nullptr; // The thread deletes itself automatically (see updateItemStates())

 
     if (!m_plugin || !thread) {
         return;
     }
 
 
     if (!m_plugin || !thread) {
         return;
     }
 

-    if (!thread->retrievedItems()) {
-        // Ignore m_silentUpdate for an error message
-        emit errorMessage(i18nc("@info:status", "Update of version information failed."));
-        return;
-    }
-
-    const QList<ItemState> itemStates = thread->itemStates();
-    foreach (const ItemState& itemState, itemStates) {
-        QHash<QByteArray, QVariant> values;
-        values.insert("version", QVariant(itemState.version));
-        m_model->setData(itemState.index, values);
+    const QMap<QString, QVector<ItemState>> &itemStates = thread->itemStates();
+    QMap<QString, QVector<ItemState>>::const_iterator it = itemStates.constBegin();
+    for (; it != itemStates.constEnd(); ++it) {
+        const QVector<ItemState> &items = it.value();
+
+        for (const ItemState &item : items) {
+            const KFileItem &fileItem = item.first;
+            const KVersionControlPlugin::ItemVersion version = item.second;
+            QHash<QByteArray, QVariant> values;
+            values.insert("version", QVariant(version));
+            m_model->setData(m_model->index(fileItem), values);
+        }

     }
 
     if (!m_silentUpdate) {
         // Using an empty message results in clearing the previously shown information message and showing
         // the default status bar information. This is useful as the user already gets feedback that the
         // operation has been completed because of the icon emblems.
     }
 
     if (!m_silentUpdate) {
         // Using an empty message results in clearing the previously shown information message and showing
         // the default status bar information. This is useful as the user already gets feedback that the
         // operation has been completed because of the icon emblems.

-        emit operationCompletedMessage(QString());
+        Q_EMIT operationCompletedMessage(QString());

     }
 
     if (m_pendingItemStatesUpdate) {
     }
 
     if (m_pendingItemStatesUpdate) {


@@ -238,107 +206,120 @@ void VersionControlObserver::slotThreadFinished()
 void VersionControlObserver::updateItemStates()
 {
     Q_ASSERT(m_plugin);
 void VersionControlObserver::updateItemStates()
 {
     Q_ASSERT(m_plugin);

-    if (!m_updateItemStatesThread) {
-        m_updateItemStatesThread = new UpdateItemStatesThread();
-        connect(m_updateItemStatesThread, SIGNAL(finished()),
-                this, SLOT(slotThreadFinished()));
-        connect(m_updateItemStatesThread, SIGNAL(finished()),
-                m_updateItemStatesThread, SLOT(deleteLater()));
-    }
-    else {
+    if (m_updateItemStatesThread) {

         // An update is currently ongoing. Wait until the thread has finished
         // the update (see slotThreadFinished()).
         m_pendingItemStatesUpdate = true;
         return;
     }
 
         // An update is currently ongoing. Wait until the thread has finished
         // the update (see slotThreadFinished()).
         m_pendingItemStatesUpdate = true;
         return;
     }
 

-    QList<ItemState> itemStates;
-    const int itemCount = m_model->count();
-    itemStates.reserve(itemCount);
-
-    for (int i = 0; i < itemCount; ++i) {
-        ItemState itemState;
-        itemState.index = i;
-        itemState.item = m_model->fileItem(i);
-        itemState.version = KVersionControlPlugin2::UnversionedVersion;
-
-        itemStates.append(itemState);
-    }
+    QMap<QString, QVector<ItemState>> itemStates;
+    createItemStatesList(itemStates);

 
     if (!itemStates.isEmpty()) {
         if (!m_silentUpdate) {
 
     if (!itemStates.isEmpty()) {
         if (!m_silentUpdate) {

-            emit infoMessage(i18nc("@info:status", "Updating version information..."));
+            Q_EMIT infoMessage(i18nc("@info:status", "Updating version information..."));

         }
         }

-        m_updateItemStatesThread->setData(m_plugin, itemStates);
+        m_updateItemStatesThread = new UpdateItemStatesThread(m_plugin, itemStates);
+        connect(m_updateItemStatesThread, &UpdateItemStatesThread::finished, this, &VersionControlObserver::slotThreadFinished);
+        connect(m_updateItemStatesThread, &UpdateItemStatesThread::finished, m_updateItemStatesThread, &UpdateItemStatesThread::deleteLater);
+

         m_updateItemStatesThread->start(); // slotThreadFinished() is called when finished
     }
 }
 
         m_updateItemStatesThread->start(); // slotThreadFinished() is called when finished
     }
 }
 

-KVersionControlPlugin* VersionControlObserver::searchPlugin(const KUrl& directory) const
+int VersionControlObserver::createItemStatesList(QMap<QString, QVector<ItemState>> &itemStates, const int firstIndex)

 {
 {

-    static bool pluginsAvailable = true;
-    static QList<KVersionControlPlugin*> plugins;
+    const int itemCount = m_model->count();
+    const int currentExpansionLevel = m_model->expandedParentsCount(firstIndex);
+
+    QVector<ItemState> items;
+    items.reserve(itemCount - firstIndex);

 
 

-    if (!pluginsAvailable) {
-        // A searching for plugins has already been done, but no
-        // plugins are installed
-        return 0;
+    int index;
+    for (index = firstIndex; index < itemCount; ++index) {
+        const int expansionLevel = m_model->expandedParentsCount(index);
+
+        if (expansionLevel == currentExpansionLevel) {
+            ItemState itemState;
+            itemState.first = m_model->fileItem(index);
+            itemState.second = KVersionControlPlugin::UnversionedVersion;
+
+            items.append(itemState);
+        } else if (expansionLevel > currentExpansionLevel) {
+            // Sub folder
+            index += createItemStatesList(itemStates, index) - 1;
+        } else {
+            break;
+        }
+    }
+
+    if (!items.isEmpty()) {
+        const QUrl &url = items.first().first.url();
+        itemStates.insert(url.adjusted(QUrl::RemoveFilename).path(), items);

     }
 
     }
 

-    if (plugins.isEmpty()) {
-        // No searching for plugins has been done yet. Query the KServiceTypeTrader for
-        // all fileview version control plugins and remember them in 'plugins'.
+    return index - firstIndex; // number of processed items
+}
+
+void VersionControlObserver::initPlugins()
+{
+    if (!m_pluginsInitialized) {
+        // No searching for plugins has been done yet. Query all fileview version control
+        // plugins and remember them in 'plugins'.

         const QStringList enabledPlugins = VersionControlSettings::enabledPlugins();
 
         const QStringList enabledPlugins = VersionControlSettings::enabledPlugins();
 

-        const KService::List pluginServices = KServiceTypeTrader::self()->query("FileViewVersionControlPlugin");
-        for (KService::List::ConstIterator it = pluginServices.constBegin(); it != pluginServices.constEnd(); ++it) {
-            if (enabledPlugins.contains((*it)->name())) {
-                KVersionControlPlugin* plugin = (*it)->createInstance<KVersionControlPlugin>();
+        const QVector<KPluginMetaData> plugins = KPluginMetaData::findPlugins(QStringLiteral("dolphin/vcs"));
+
+        QSet<QString> loadedPlugins;
+
+        for (const auto &p : plugins) {
+            if (enabledPlugins.contains(p.name())) {
+                auto plugin = KPluginFactory::instantiatePlugin<KVersionControlPlugin>(p, parent()).plugin;

                 if (plugin) {
                 if (plugin) {

-                    plugins.append(plugin);
+                    m_plugins.append(plugin);
+                    loadedPlugins += p.name();

                 }
             }
         }
                 }
             }
         }

-        if (plugins.isEmpty()) {
-            pluginsAvailable = false;
-            return 0;
+
+        for (auto &plugin : qAsConst(m_plugins)) {
+            connect(plugin, &KVersionControlPlugin::itemVersionsChanged, this, &VersionControlObserver::silentDirectoryVerification);
+            connect(plugin, &KVersionControlPlugin::infoMessage, this, &VersionControlObserver::infoMessage);
+            connect(plugin, &KVersionControlPlugin::errorMessage, this, &VersionControlObserver::errorMessage);
+            connect(plugin, &KVersionControlPlugin::operationCompletedMessage, this, &VersionControlObserver::operationCompletedMessage);

         }
         }

+
+        m_pluginsInitialized = true;

     }
     }

+}
+
+KVersionControlPlugin *VersionControlObserver::searchPlugin(const QUrl &directory)
+{
+    initPlugins();

 
 

-    // Verify whether the current directory contains revision information
-    // like .svn, .git, ...
-    foreach (KVersionControlPlugin* plugin, plugins) {
-        const QString fileName = directory.path(KUrl::AddTrailingSlash) + plugin->fileName();
+    // Verify whether the current directory is under a version system
+    for (const QPointer<KVersionControlPlugin> &plugin : qAsConst(m_plugins)) {
+        if (!plugin) {
+            continue;
+        }
+
+        // first naively check if we are at working copy root
+        const QString fileName = directory.path() + '/' + plugin->fileName();

         if (QFile::exists(fileName)) {
         if (QFile::exists(fileName)) {

+            m_localRepoRoot = directory.path();

             return plugin;
         }
             return plugin;
         }

-
-        // Version control systems like Git provide the version information
-        // file only in the root directory. Check whether the version information file can
-        // be found in one of the parent directories. For performance reasons this
-        // step is only done, if the previous directory was marked as versioned by
-        // m_versionedDirectory. Drawback: Until e. g. Git is recognized, the root directory
-        // must be shown at least once.
-        if (m_versionedDirectory) {
-            KUrl dirUrl(directory);
-            KUrl upUrl = dirUrl.upUrl();
-            while (upUrl != dirUrl) {
-                const QString fileName = dirUrl.path(KUrl::AddTrailingSlash) + plugin->fileName();
-                if (QFile::exists(fileName)) {
-                    return plugin;
-                }
-                dirUrl = upUrl;
-                upUrl = dirUrl.upUrl();
-            }
+        const QString root = plugin->localRepositoryRoot(directory.path());
+        if (!root.isEmpty()) {
+            m_localRepoRoot = root;
+            return plugin;

         }
     }
         }
     }

-
-    return 0;
+    return nullptr;

 }
 
 }
 

-bool VersionControlObserver::isVersioned() const
+bool VersionControlObserver::isVersionControlled() const

 {
 {

-    return m_versionedDirectory && m_plugin;
+    return m_plugin != nullptr;

 }
 }

-
-#include "versioncontrolobserver.moc"