Plugins: Implement removing locally installed plugins

src/lib/network/schemehandlers/falkonschemehandler.cpp

@@ -356,7 +356,7 @@ QString FalkonSchemeReply::configPage()
     page.replace(QLatin1String("%USER-AGENT%"), mApp->webProfile()->httpUserAgent());
 
     QString pluginsString;
-    const QList<Plugins::Plugin> &availablePlugins = mApp->plugins()->getAvailablePlugins();
+    const QList<Plugins::Plugin> &availablePlugins = mApp->plugins()->availablePlugins();
 
     foreach (const Plugins::Plugin &plugin, availablePlugins) {
         PluginSpec spec = plugin.pluginSpec;

src/lib/plugins/plugins.cpp

@@ -28,10 +28,28 @@
 #include "qml/qmlplugin.h"
 
 #include <iostream>
+
 #include <QPluginLoader>
 #include <QDir>
 #include <QQmlEngine>
 #include <QQmlComponent>
+#include <QFileInfo>
+
+bool Plugins::Plugin::isLoaded() const
+{
+    return instance;
+}
+
+bool Plugins::Plugin::isRemovable() const
+{
+    return !pluginPath.isEmpty() && QFileInfo(pluginPath).isWritable();
+}
+
+bool Plugins::Plugin::operator==(const Plugin &other) const
+{
+    return type == other.type &&
+           pluginId == other.pluginId;
+}
 
 Plugins::Plugins(QObject* parent)
     : QObject(parent)
@@ -45,10 +63,9 @@ Plugins::Plugins(QObject* parent)
     }
 }
 
-QList<Plugins::Plugin> Plugins::getAvailablePlugins()
+QList<Plugins::Plugin> Plugins::availablePlugins()
 {
     loadAvailablePlugins();
-
     return m_availablePlugins;
 }
 
@@ -88,24 +105,30 @@ void Plugins::unloadPlugin(Plugins::Plugin* plugin)
 
 void Plugins::removePlugin(Plugins::Plugin *plugin)
 {
-    if (plugin->type != Plugin::QmlPlugin) {
+    if (!plugin->isRemovable()) {
         return;
     }
+
     if (plugin->isLoaded()) {
         unloadPlugin(plugin);
     }
 
-    // For QML plugins, pluginId is qml:<plugin-dir-name>
+    bool result = false;
-    const QString dirName = plugin->pluginId.mid(4);
+
-    const QString dirPath = DataPaths::locate(DataPaths::Plugins, QSL("qml/") + dirName);
+    QFileInfo info(plugin->pluginPath);
-    bool result = QDir(dirPath).removeRecursively();
+    if (info.isDir()) {
+        result = QDir(plugin->pluginPath).removeRecursively();
+    } else if (info.isFile()) {
+        result = QFile::remove(plugin->pluginPath);
+    }
+
     if (!result) {
-        qWarning() << "Unable to remove" << plugin->pluginSpec.name;
+        qWarning() << "Failed to remove" << plugin->pluginSpec.name;
         return;
     }
 
     m_availablePlugins.removeOne(*plugin);
-    refreshedLoadedPlugins();
+    emit availablePluginsChanged();
 }
 
 void Plugins::loadSettings()
@@ -233,7 +256,7 @@ void Plugins::loadAvailablePlugins()
 
     // QmlPlugin
     for (QString dir : dirs) {
-        // qml plugins will be loaded from subdirectory qml
+        // Qml plugins will be loaded from subdirectory qml
         dir.append(QSL("/qml"));
         const auto qmlDirs = QDir(dir).entryInfoList(QDir::Dirs | QDir::NoDotAndDotDot);
         for (const QFileInfo &info : qmlDirs) {
@@ -267,7 +290,7 @@ void Plugins::refreshLoadedPlugins()
         }
     }
 
-    emit refreshedLoadedPlugins();
+    emit availablePluginsChanged();
 }
 
 void Plugins::loadPythonSupport()
@@ -369,7 +392,7 @@ Plugins::Plugin Plugins::loadSharedLibraryPlugin(const QString &name)
     Plugin plugin;
     plugin.type = Plugin::SharedLibraryPlugin;
     plugin.pluginId = QSL("lib:%1").arg(QFileInfo(fullPath).fileName());
-    plugin.libraryPath = fullPath;
+    plugin.pluginPath = fullPath;
     plugin.pluginLoader = loader;
     plugin.pluginSpec = createSpec(iPlugin->metaData());
     return plugin;

src/lib/plugins/plugins.h

@@ -60,6 +60,7 @@ public:
         };
         Type type = Invalid;
         QString pluginId;
+        QString pluginPath;
         PluginSpec pluginSpec;
         PluginInterface *instance = nullptr;
 
@@ -67,25 +68,19 @@ public:
         PluginInterface *internalInstance = nullptr;
 
         // SharedLibraryPlugin
-        QString libraryPath;
         QPluginLoader *pluginLoader = nullptr;
 
         // Other
         QVariant data;
 
-        bool isLoaded() const {
+        bool isLoaded() const;
-            return instance;
+        bool isRemovable() const;
-        }
+        bool operator==(const Plugin &other) const;
-
-        bool operator==(const Plugin &other) const {
-            return this->type == other.type &&
-                   this->pluginId == other.pluginId;
-        }
     };
 
     explicit Plugins(QObject* parent = 0);
 
-    QList<Plugin> getAvailablePlugins();
+    QList<Plugin> availablePlugins();
 
     bool loadPlugin(Plugin* plugin);
     void unloadPlugin(Plugin* plugin);
@@ -108,7 +103,7 @@ protected:
 
 Q_SIGNALS:
     void pluginUnloaded(PluginInterface* plugin);
-    void refreshedLoadedPlugins();
+    void availablePluginsChanged();
 
 private:
     void loadPythonSupport();

src/lib/plugins/qml/qmlplugin.cpp

@@ -50,6 +50,7 @@ Plugins::Plugin QmlPlugin::loadPlugin(const QString &name)
     Plugins::Plugin plugin;
     plugin.type = Plugins::Plugin::QmlPlugin;
     plugin.pluginId = QSL("qml:%1").arg(QFileInfo(name).fileName());
+    plugin.pluginPath = fullPath;
     DesktopFile desktopFile(fullPath + QSL("/metadata.desktop"));
     plugin.pluginSpec = Plugins::createSpec(desktopFile);
     QString entryPoint = desktopFile.value(QSL("X-Falkon-EntryPoint")).toString();

src/lib/preferences/pluginslist.ui

@@ -70,6 +70,16 @@
        </property>
       </spacer>
      </item>
+     <item>
+      <widget class="QPushButton" name="butRemove">
+       <property name="enabled">
+        <bool>false</bool>
+       </property>
+       <property name="text">
+        <string>Remove</string>
+       </property>
+      </widget>
+     </item>
     </layout>
    </item>
   </layout>

src/lib/preferences/pluginsmanager.cpp

@@ -38,6 +38,7 @@ PluginsManager::PluginsManager(QWidget* parent)
     ui->setupUi(this);
     ui->list->setLayoutDirection(Qt::LeftToRight);
     ui->butSettings->setIcon(IconProvider::settingsIcon());
+    ui->butRemove->setIcon(QIcon::fromTheme(QSL("edit-delete")));
 
     //Application Extensions
     Settings settings;
@@ -48,8 +49,10 @@ PluginsManager::PluginsManager(QWidget* parent)
     ui->list->setEnabled(appPluginsEnabled);
 
     connect(ui->butSettings, &QAbstractButton::clicked, this, &PluginsManager::settingsClicked);
+    connect(ui->butRemove, &QAbstractButton::clicked, this, &PluginsManager::removeClicked);
     connect(ui->list, &QListWidget::currentItemChanged, this, &PluginsManager::currentChanged);
     connect(ui->list, &QListWidget::itemChanged, this, &PluginsManager::itemChanged);
+    connect(mApp->plugins(), &Plugins::availablePluginsChanged, this, &PluginsManager::refresh);
 
     ui->list->setItemDelegate(new PluginListDelegate(ui->list));
 }
@@ -86,11 +89,17 @@ void PluginsManager::save()
 
 void PluginsManager::refresh()
 {
+    if (m_blockRefresh) {
+        return;
+    }
+
+    const int oldCurrentRow = ui->list->currentRow();
+
     ui->list->clear();
     ui->butSettings->setEnabled(false);
     disconnect(ui->list, &QListWidget::itemChanged, this, &PluginsManager::itemChanged);
 
-    const QList<Plugins::Plugin> &allPlugins = mApp->plugins()->getAvailablePlugins();
+    const QList<Plugins::Plugin> &allPlugins = mApp->plugins()->availablePlugins();
 
     foreach (const Plugins::Plugin &plugin, allPlugins) {
         PluginSpec spec = plugin.pluginSpec;
@@ -119,6 +128,11 @@ void PluginsManager::refresh()
 
     sortItems();
 
+    if (oldCurrentRow >= 0) {
+        ui->list->setCurrentRow(qMax(0, oldCurrentRow - 1));
+        ui->list->setFocus();
+    }
+
     connect(ui->list, &QListWidget::itemChanged, this, &PluginsManager::itemChanged);
 }
 
@@ -153,13 +167,8 @@ void PluginsManager::currentChanged(QListWidgetItem* item)
     }
 
     const Plugins::Plugin plugin = item->data(Qt::UserRole + 10).value<Plugins::Plugin>();
-    bool showSettings = plugin.pluginSpec.hasSettings;
+    ui->butSettings->setEnabled(plugin.isLoaded() && plugin.pluginSpec.hasSettings);
-
+    ui->butRemove->setEnabled(plugin.isRemovable());
-    if (!plugin.isLoaded()) {
-        showSettings = false;
-    }
-
-    ui->butSettings->setEnabled(showSettings);
 }
 
 void PluginsManager::itemChanged(QListWidgetItem* item)
@@ -170,6 +179,8 @@ void PluginsManager::itemChanged(QListWidgetItem* item)
 
     Plugins::Plugin plugin = item->data(Qt::UserRole + 10).value<Plugins::Plugin>();
 
+    m_blockRefresh = true;
+
     if (item->checkState() == Qt::Checked) {
         mApp->plugins()->loadPlugin(&plugin);
     }
@@ -177,6 +188,8 @@ void PluginsManager::itemChanged(QListWidgetItem* item)
         mApp->plugins()->unloadPlugin(&plugin);
     }
 
+    m_blockRefresh = false;
+
     disconnect(ui->list, &QListWidget::itemChanged, this, &PluginsManager::itemChanged);
 
     if (item->checkState() == Qt::Checked && !plugin.isLoaded()) {
@@ -188,7 +201,6 @@ void PluginsManager::itemChanged(QListWidgetItem* item)
 
     connect(ui->list, &QListWidget::itemChanged, this, &PluginsManager::itemChanged);
 
-
     currentChanged(ui->list->currentItem());
 }
 
@@ -212,6 +224,20 @@ void PluginsManager::settingsClicked()
     }
 }
 
+void PluginsManager::removeClicked()
+{
+    QListWidgetItem* item = ui->list->currentItem();
+    if (!item) {
+        return;
+    }
+
+    Plugins::Plugin plugin = item->data(Qt::UserRole + 10).value<Plugins::Plugin>();
+
+    if (plugin.isRemovable()) {
+        mApp->plugins()->removePlugin(&plugin);
+    }
+}
+
 PluginsManager::~PluginsManager()
 {
     delete ui;

src/lib/preferences/pluginsmanager.h

@@ -42,6 +42,7 @@ public:
 
 private Q_SLOTS:
     void settingsClicked();
+    void removeClicked();
     void currentChanged(QListWidgetItem* item);
     void itemChanged(QListWidgetItem* item);
 
@@ -52,6 +53,7 @@ private:
 
     Ui::PluginsList* ui;
     bool m_loaded;
+    bool m_blockRefresh = false;
 };
 
 #endif // PLUGINSMANAGER_H

src/plugins/PyFalkon/pythonplugin.cpp

@@ -107,6 +107,7 @@ Plugins::Plugin pyfalkon_load_plugin(const QString &name)
     Plugins::Plugin plugin;
     plugin.type = Plugins::Plugin::PythonPlugin;
     plugin.pluginId = QSL("python:%1").arg(QFileInfo(name).fileName());
+    plugin.pluginPath = fullPath;
     plugin.pluginSpec = Plugins::createSpec(DesktopFile(fullPath + QSL("/metadata.desktop")));
     return plugin;
 }