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#include "PluginSystem.hpp"
#include <dlfcn.h>
#include <ranges>
#include "../Compositor.hpp"
CPluginSystem::CPluginSystem() {
g_pFunctionHookSystem = std::make_unique<CHookSystem>();
}
CPlugin* CPluginSystem::loadPlugin(const std::string& path) {
if (getPluginByPath(path)) {
Debug::log(ERR, " [PluginSystem] Cannot load a plugin twice!");
return nullptr;
}
auto* const PLUGIN = m_vLoadedPlugins.emplace_back(std::make_unique<CPlugin>()).get();
PLUGIN->path = path;
HANDLE MODULE = dlopen(path.c_str(), RTLD_LAZY);
if (!MODULE) {
Debug::log(ERR, " [PluginSystem] Plugin %s could not be loaded: %s", path.c_str(), dlerror());
m_vLoadedPlugins.pop_back();
return nullptr;
}
PLUGIN->m_pHandle = MODULE;
PPLUGIN_API_VERSION_FUNC apiVerFunc = (PPLUGIN_API_VERSION_FUNC)dlsym(MODULE, PLUGIN_API_VERSION_FUNC_STR);
PPLUGIN_INIT_FUNC initFunc = (PPLUGIN_INIT_FUNC)dlsym(MODULE, PLUGIN_INIT_FUNC_STR);
if (!apiVerFunc || !initFunc) {
Debug::log(ERR, " [PluginSystem] Plugin %s could not be loaded. (No apiver/init func)", path.c_str());
dlclose(MODULE);
m_vLoadedPlugins.pop_back();
return nullptr;
}
const std::string PLUGINAPIVER = apiVerFunc();
if (PLUGINAPIVER != HYPRLAND_API_VERSION) {
Debug::log(ERR, " [PluginSystem] Plugin %s could not be loaded. (API version mismatch)", path.c_str());
dlclose(MODULE);
m_vLoadedPlugins.pop_back();
return nullptr;
}
PLUGIN_DESCRIPTION_INFO PLUGINDATA;
try {
if (!setjmp(m_jbPluginFaultJumpBuf)) {
m_bAllowConfigVars = true;
PLUGINDATA = initFunc(MODULE);
} else {
// this module crashed.
throw std::exception();
}
} catch (std::exception& e) {
m_bAllowConfigVars = false;
Debug::log(ERR, " [PluginSystem] Plugin %s (Handle %lx) crashed in init. Unloading.", path.c_str(), MODULE);
unloadPlugin(PLUGIN, true); // Plugin could've already hooked/done something
return nullptr;
}
m_bAllowConfigVars = false;
PLUGIN->author = PLUGINDATA.author;
PLUGIN->description = PLUGINDATA.description;
PLUGIN->version = PLUGINDATA.version;
PLUGIN->name = PLUGINDATA.name;
Debug::log(LOG, " [PluginSystem] Plugin %s loaded. Handle: %lx, path: \"%s\", author: \"%s\", description: \"%s\", version: \"%s\"", PLUGINDATA.name.c_str(), MODULE,
path.c_str(), PLUGINDATA.author.c_str(), PLUGINDATA.description.c_str(), PLUGINDATA.version.c_str());
return PLUGIN;
}
void CPluginSystem::unloadPlugin(const CPlugin* plugin, bool eject) {
if (!plugin)
return;
if (!eject) {
PPLUGIN_EXIT_FUNC exitFunc = (PPLUGIN_EXIT_FUNC)dlsym(plugin->m_pHandle, PLUGIN_EXIT_FUNC_STR);
if (exitFunc)
exitFunc();
}
for (auto& [k, v] : plugin->registeredCallbacks)
g_pHookSystem->unhook(v);
const auto ls = plugin->registeredLayouts;
for (auto& l : ls)
g_pLayoutManager->removeLayout(l);
g_pFunctionHookSystem->removeAllHooksFrom(plugin->m_pHandle);
const auto rd = plugin->registeredDecorations;
for (auto& d : rd)
HyprlandAPI::removeWindowDecoration(plugin->m_pHandle, d);
const auto rdi = plugin->registeredDispatchers;
for (auto& d : rdi)
HyprlandAPI::removeDispatcher(plugin->m_pHandle, d);
g_pConfigManager->removePluginConfig(plugin->m_pHandle);
dlclose(plugin->m_pHandle);
Debug::log(LOG, " [PluginSystem] Plugin %s unloaded.", plugin->name.c_str());
std::erase_if(m_vLoadedPlugins, [&](const auto& other) { return other->m_pHandle == plugin->m_pHandle; });
}
void CPluginSystem::unloadAllPlugins() {
for (auto& p : m_vLoadedPlugins | std::views::reverse)
unloadPlugin(p.get(), false); // Unload remaining plugins gracefully
}
std::vector<std::string> CPluginSystem::updateConfigPlugins(const std::vector<std::string>& plugins, bool& changed) {
std::vector<std::string> failures;
// unload all plugins that are no longer present
for (auto& p : m_vLoadedPlugins | std::views::reverse) {
if (p->m_bLoadedWithConfig && std::find(plugins.begin(), plugins.end(), p->path) == plugins.end()) {
Debug::log(LOG, "Unloading plugin %s which is no longer present in config", p->path.c_str());
unloadPlugin(p.get(), false);
changed = true;
}
}
// load all new plugins
for (auto& path : plugins) {
if (std::find_if(m_vLoadedPlugins.begin(), m_vLoadedPlugins.end(), [&](const auto& other) { return other->path == path; }) == m_vLoadedPlugins.end()) {
Debug::log(LOG, "Loading plugin %s which is now present in config", path.c_str());
const auto plugin = loadPlugin(path);
if (plugin) {
plugin->m_bLoadedWithConfig = true;
changed = true;
} else
failures.push_back(path);
}
}
return failures;
}
CPlugin* CPluginSystem::getPluginByPath(const std::string& path) {
for (auto& p : m_vLoadedPlugins) {
if (p->path == path)
return p.get();
}
return nullptr;
}
CPlugin* CPluginSystem::getPluginByHandle(HANDLE handle) {
for (auto& p : m_vLoadedPlugins) {
if (p->m_pHandle == handle)
return p.get();
}
return nullptr;
}
std::vector<CPlugin*> CPluginSystem::getAllPlugins() {
std::vector<CPlugin*> results(m_vLoadedPlugins.size());
for (size_t i = 0; i < m_vLoadedPlugins.size(); ++i)
results[i] = m_vLoadedPlugins[i].get();
return results;
}
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