Hyprland/src/plugins/PluginAPI.cpp
2023-05-23 14:26:38 +02:00

336 lines
9.8 KiB
C++

#include "PluginAPI.hpp"
#include "../Compositor.hpp"
#include "../debug/HyprCtl.hpp"
#include <dlfcn.h>
#if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__)
#include <sys/sysctl.h>
#endif
#include <sstream>
APICALL bool HyprlandAPI::registerCallbackStatic(HANDLE handle, const std::string& event, HOOK_CALLBACK_FN* fn) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return false;
g_pHookSystem->hookStatic(event, fn, handle);
PLUGIN->registeredCallbacks.emplace_back(std::make_pair<>(event, fn));
return true;
}
APICALL HOOK_CALLBACK_FN* HyprlandAPI::registerCallbackDynamic(HANDLE handle, const std::string& event, HOOK_CALLBACK_FN fn) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return nullptr;
auto* const PFN = g_pHookSystem->hookDynamic(event, fn, handle);
PLUGIN->registeredCallbacks.emplace_back(std::make_pair<>(event, PFN));
return PFN;
}
APICALL bool HyprlandAPI::unregisterCallback(HANDLE handle, HOOK_CALLBACK_FN* fn) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return false;
g_pHookSystem->unhook(fn);
std::erase_if(PLUGIN->registeredCallbacks, [&](const auto& other) { return other.second == fn; });
return true;
}
APICALL std::string HyprlandAPI::invokeHyprctlCommand(const std::string& call, const std::string& args, const std::string& format) {
if (args.empty())
return HyprCtl::makeDynamicCall(format + "/" + call);
else
return HyprCtl::makeDynamicCall(format + "/" + call + " " + args);
}
APICALL bool HyprlandAPI::addLayout(HANDLE handle, const std::string& name, IHyprLayout* layout) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return false;
PLUGIN->registeredLayouts.push_back(layout);
return g_pLayoutManager->addLayout(name, layout);
}
APICALL bool HyprlandAPI::removeLayout(HANDLE handle, IHyprLayout* layout) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return false;
std::erase(PLUGIN->registeredLayouts, layout);
return g_pLayoutManager->removeLayout(layout);
}
APICALL bool HyprlandAPI::reloadConfig() {
g_pConfigManager->m_bForceReload = true;
return true;
}
APICALL bool HyprlandAPI::addNotification(HANDLE handle, const std::string& text, const CColor& color, const float timeMs) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return false;
g_pHyprNotificationOverlay->addNotification(text, color, timeMs);
return true;
}
APICALL CFunctionHook* HyprlandAPI::createFunctionHook(HANDLE handle, const void* source, const void* destination) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return nullptr;
return g_pFunctionHookSystem->initHook(handle, (void*)source, (void*)destination);
}
APICALL bool HyprlandAPI::removeFunctionHook(HANDLE handle, CFunctionHook* hook) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return false;
return g_pFunctionHookSystem->removeHook(hook);
}
APICALL bool HyprlandAPI::addWindowDecoration(HANDLE handle, CWindow* pWindow, IHyprWindowDecoration* pDecoration) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return false;
if (!g_pCompositor->windowValidMapped(pWindow))
return false;
PLUGIN->registeredDecorations.push_back(pDecoration);
pWindow->m_dWindowDecorations.emplace_back(pDecoration);
pWindow->updateWindowDecos();
g_pLayoutManager->getCurrentLayout()->recalculateWindow(pWindow);
return true;
}
APICALL bool HyprlandAPI::removeWindowDecoration(HANDLE handle, IHyprWindowDecoration* pDecoration) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return false;
for (auto& w : g_pCompositor->m_vWindows) {
for (auto& d : w->m_dWindowDecorations) {
if (d.get() == pDecoration) {
std::erase(w->m_dWindowDecorations, d);
return true;
}
}
}
return false;
}
APICALL bool HyprlandAPI::addConfigValue(HANDLE handle, const std::string& name, const SConfigValue& value) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!g_pPluginSystem->m_bAllowConfigVars)
return false;
if (!PLUGIN)
return false;
if (name.find("plugin:") != 0)
return false;
g_pConfigManager->addPluginConfigVar(handle, name, value);
return true;
}
APICALL SConfigValue* HyprlandAPI::getConfigValue(HANDLE handle, const std::string& name) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return nullptr;
return g_pConfigManager->getConfigValuePtrSafe(name);
}
APICALL void* HyprlandAPI::getFunctionAddressFromSignature(HANDLE handle, const std::string& sig) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return nullptr;
return dlsym(nullptr, sig.c_str());
}
APICALL bool HyprlandAPI::addDispatcher(HANDLE handle, const std::string& name, std::function<void(std::string)> handler) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return false;
PLUGIN->registeredDispatchers.push_back(name);
g_pKeybindManager->m_mDispatchers[name] = handler;
return true;
}
APICALL bool HyprlandAPI::removeDispatcher(HANDLE handle, const std::string& name) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return false;
std::erase_if(g_pKeybindManager->m_mDispatchers, [&](const auto& other) { return other.first == name; });
std::erase_if(PLUGIN->registeredDispatchers, [&](const auto& other) { return other == name; });
return true;
}
APICALL bool addNotificationV2(HANDLE handle, const std::unordered_map<std::string, std::any>& data) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return false;
try {
auto iterator = data.find("text");
if (iterator == data.end())
return false;
// mandatory
std::string text;
try {
text = std::any_cast<std::string>(iterator->second);
} catch (std::exception& e) {
// attempt const char*
text = std::any_cast<const char*>(iterator->second);
}
iterator = data.find("time");
if (iterator == data.end())
return false;
const auto TIME = std::any_cast<uint64_t>(iterator->second);
iterator = data.find("color");
if (iterator == data.end())
return false;
const auto COLOR = std::any_cast<CColor>(iterator->second);
// optional
eIcons icon = ICON_NONE;
iterator = data.find("icon");
if (iterator != data.end())
icon = std::any_cast<eIcons>(iterator->second);
g_pHyprNotificationOverlay->addNotification(text, COLOR, TIME, icon);
} catch (std::exception& e) {
// bad any_cast most likely, plugin error
return false;
}
return true;
}
APICALL std::vector<SFunctionMatch> HyprlandAPI::findFunctionsByName(HANDLE handle, const std::string& name) {
auto* const PLUGIN = g_pPluginSystem->getPluginByHandle(handle);
if (!PLUGIN)
return std::vector<SFunctionMatch>{};
#if defined(KERN_PROC_PATHNAME)
int mib[] = {
CTL_KERN,
#if defined(__NetBSD__)
KERN_PROC_ARGS,
-1,
KERN_PROC_PATHNAME,
#else
KERN_PROC,
KERN_PROC_PATHNAME,
-1,
#endif
};
u_int miblen = sizeof(mib) / sizeof(mib[0]);
char exe[PATH_MAX] = "";
size_t sz = sizeof(exe);
sysctl(mib, miblen, &exe, &sz, NULL, 0);
const auto FPATH = std::filesystem::canonical(exe);
#elif defined(__OpenBSD__)
// Neither KERN_PROC_PATHNAME nor /proc are supported
const auto FPATH = std::filesystem::canonical("/usr/local/bin/Hyprland");
#else
const auto FPATH = std::filesystem::canonical("/proc/self/exe");
#endif
#ifdef __clang__
static const auto SYMBOLS = execAndGet(("llvm-nm -D -j \"" + FPATH.string() + "\"").c_str());
static const auto SYMBOLSDEMANGLED = execAndGet(("llvm-nm -D -j --demangle \"" + FPATH.string() + "\"").c_str());
#else
static const auto SYMBOLS = execAndGet(("nm -D -j \"" + FPATH.string() + "\"").c_str());
static const auto SYMBOLSDEMANGLED = execAndGet(("nm -D -j --demangle=auto \"" + FPATH.string() + "\"").c_str());
#endif
auto demangledFromID = [&](size_t id) -> std::string {
size_t pos = 0;
size_t count = 0;
while (count < id) {
pos++;
pos = SYMBOLSDEMANGLED.find('\n', pos);
if (pos == std::string::npos)
return "";
count++;
}
return SYMBOLSDEMANGLED.substr(pos, SYMBOLSDEMANGLED.find('\n', pos + 1) - pos);
};
if (SYMBOLS.empty()) {
Debug::log(ERR, "Unable to search for function \"%s\": no symbols found in binary (is \"%s\" in path?)", name.c_str(),
#ifdef __clang__
"llvm-nm"
#else
"nm"
#endif
);
return {};
}
std::vector<SFunctionMatch> matches;
std::istringstream inStream(SYMBOLS);
std::string line;
int lineNo = 0;
while (std::getline(inStream, line)) {
if (line.contains(name)) {
void* address = dlsym(nullptr, line.c_str());
if (!address)
continue;
matches.push_back({address, line, demangledFromID(lineNo)});
}
lineNo++;
}
return matches;
}