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/*
SPDX-FileCopyrightText: 2019 Kai Uwe Broulik <kde@privat.broulik.de>
SPDX-License-Identifier: GPL-3.0-or-later
*/
#include "pluginmanager.h"
#include <QJsonObject>
#include "abstractbrowserplugin.h"
#include "connection.h"
PluginManager::PluginManager()
: QObject(nullptr)
{
connect(Connection::self(), &Connection::dataReceived, this, &PluginManager::onDataReceived);
}
PluginManager::~PluginManager() = default;
PluginManager &PluginManager::self()
{
static PluginManager s_self;
return s_self;
}
AbstractBrowserPlugin *PluginManager::pluginForSubsystem(const QString &subsystem) const
{
return m_plugins.value(subsystem);
}
void PluginManager::addPlugin(AbstractBrowserPlugin *plugin)
{
m_plugins.insert(plugin->m_subsystem, plugin);
}
bool PluginManager::loadPlugin(AbstractBrowserPlugin *plugin)
{
return setPluginLoaded(plugin, true);
}
bool PluginManager::unloadPlugin(AbstractBrowserPlugin *plugin)
{
return setPluginLoaded(plugin, false);
}
bool PluginManager::setPluginLoaded(AbstractBrowserPlugin *plugin, bool loaded)
{
if (!plugin) {
return false;
}
if (plugin->isLoaded() == loaded) {
return true;
}
bool ok = false;
if (loaded && !plugin->isLoaded()) {
ok = plugin->onLoad();
} else if (!loaded && plugin->isLoaded()) {
ok = plugin->onUnload();
}
if (!ok) {
qDebug() << "plugin" << plugin->subsystem() << "refused to" << (loaded ? "load" : "unload");
return false;
}
plugin->setLoaded(loaded);
if (loaded) {
Q_EMIT pluginLoaded(plugin);
} else {
Q_EMIT pluginUnloaded(plugin);
}
return true;
}
void PluginManager::settingsChanged(AbstractBrowserPlugin *plugin, const QJsonObject &settings)
{
plugin->onSettingsChanged(settings);
}
QStringList PluginManager::knownPluginSubsystems() const
{
return m_plugins.keys();
}
QStringList PluginManager::loadedPluginSubsystems() const
{
QStringList plugins;
for (auto it = m_plugins.constBegin(), end = m_plugins.constEnd(); it != end; ++it) {
if (it.value()->isLoaded()) {
plugins << it.key();
}
}
return plugins;
}
void PluginManager::onDataReceived(const QJsonObject &json)
{
const QString subsystem = json.value(QStringLiteral("subsystem")).toString();
AbstractBrowserPlugin *plugin = m_plugins.value(subsystem);
if (!plugin) {
return;
}
if (!plugin->isLoaded()) {
return;
}
const QString event = json.value(QStringLiteral("event")).toString();
if (event.isEmpty()) {
return;
}
const QJsonValue requestSerialVariant = json.value(QStringLiteral("serial"));
if (!requestSerialVariant.isUndefined()) {
const int requestSerial = requestSerialVariant.toInt();
const auto reply = plugin->handleData(requestSerial, event, json);
if (!reply.isEmpty()) {
plugin->sendReply(requestSerial, reply);
}
} else {
// design question, should we have a JSON of subsystem, event, payload, or have all data at the root level?
plugin->handleData(event, json);
}
}
#include "moc_pluginmanager.cpp"
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