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#include "Hyprpaper.hpp"
#include "../helpers/Memory.hpp"
#include <optional>
#include <format>
#include <filesystem>
#include <hyprpaper_core-client.hpp>
#include <hyprutils/string/VarList2.hpp>
using namespace Hyprutils::String;
using namespace std::string_literals;
constexpr const char* SOCKET_NAME = ".hyprpaper.sock";
static SP<CCHyprpaperCoreImpl> g_coreImpl;
constexpr const uint32_t PROTOCOL_VERSION_SUPPORTED = 1;
//
static hyprpaperCoreWallpaperFitMode fitFromString(const std::string_view& sv) {
if (sv == "contain")
return HYPRPAPER_CORE_WALLPAPER_FIT_MODE_CONTAIN;
if (sv == "fit" || sv == "stretch")
return HYPRPAPER_CORE_WALLPAPER_FIT_MODE_STRETCH;
if (sv == "tile")
return HYPRPAPER_CORE_WALLPAPER_FIT_MODE_TILE;
return HYPRPAPER_CORE_WALLPAPER_FIT_MODE_COVER;
}
static std::expected<std::string, std::string> resolvePath(const std::string_view& sv) {
std::error_code ec;
auto can = std::filesystem::canonical(sv, ec);
if (ec)
return std::unexpected(std::format("invalid path: {}", ec.message()));
return can;
}
static std::expected<std::string, std::string> getFullPath(const std::string_view& sv) {
if (sv.empty())
return std::unexpected("empty path");
if (sv[0] == '~') {
static auto HOME = getenv("HOME");
if (!HOME || HOME[0] == '\0')
return std::unexpected("home path but no $HOME");
return resolvePath(std::string{HOME} + "/"s + std::string{sv.substr(1)});
}
return resolvePath(sv);
}
std::expected<void, std::string> Hyprpaper::makeHyprpaperRequest(const std::string_view& rq) {
if (!rq.contains(' '))
return std::unexpected("Invalid request");
if (!rq.starts_with("/hyprpaper "))
return std::unexpected("Invalid request");
std::string_view LHS, RHS;
auto spacePos = rq.find(' ', 12);
LHS = rq.substr(11, spacePos - 11);
RHS = rq.substr(spacePos + 1);
if (LHS != "wallpaper")
return std::unexpected("Unknown hyprpaper request");
CVarList2 args(std::string{RHS}, 0, ',');
const std::string MONITOR = std::string{args[0]};
const auto& PATH_RAW = args[1];
const auto& FIT = args[2];
if (PATH_RAW.empty())
return std::unexpected("not enough args");
const auto RTDIR = getenv("XDG_RUNTIME_DIR");
if (!RTDIR || RTDIR[0] == '\0')
return std::unexpected("can't send: no XDG_RUNTIME_DIR");
const auto HIS = getenv("HYPRLAND_INSTANCE_SIGNATURE");
if (!HIS || HIS[0] == '\0')
return std::unexpected("can't send: no HYPRLAND_INSTANCE_SIGNATURE (not running under hyprland)");
const auto PATH = getFullPath(PATH_RAW);
if (!PATH)
return std::unexpected(std::format("bad path: {}", PATH_RAW));
auto socketPath = RTDIR + "/hypr/"s + HIS + "/"s + SOCKET_NAME;
auto socket = Hyprwire::IClientSocket::open(socketPath);
if (!socket)
return std::unexpected("can't send: failed to connect to hyprpaper (is it running?)");
g_coreImpl = makeShared<CCHyprpaperCoreImpl>(1);
socket->addImplementation(g_coreImpl);
if (!socket->waitForHandshake())
return std::unexpected("can't send: wire handshake failed");
auto spec = socket->getSpec(g_coreImpl->protocol()->specName());
if (!spec)
return std::unexpected("can't send: hyprpaper doesn't have the spec?!");
auto manager = makeShared<CCHyprpaperCoreManagerObject>(socket->bindProtocol(g_coreImpl->protocol(), PROTOCOL_VERSION_SUPPORTED));
if (!manager)
return std::unexpected("wire error: couldn't create manager");
auto wallpaper = makeShared<CCHyprpaperWallpaperObject>(manager->sendGetWallpaperObject());
if (!wallpaper)
return std::unexpected("wire error: couldn't create wallpaper object");
bool canExit = false;
std::optional<std::string> err;
wallpaper->setFailed([&canExit, &err](uint32_t code) {
canExit = true;
switch (code) {
case HYPRPAPER_CORE_APPLYING_ERROR_INVALID_PATH: err = std::format("failed to set wallpaper: Invalid path", code); break;
case HYPRPAPER_CORE_APPLYING_ERROR_INVALID_MONITOR: err = std::format("failed to set wallpaper: Invalid monitor", code); break;
default: err = std::format("failed to set wallpaper: unknown error, code {}", code); break;
}
});
wallpaper->setSuccess([&canExit]() { canExit = true; });
wallpaper->sendPath(PATH->c_str());
wallpaper->sendMonitorName(MONITOR.c_str());
if (!FIT.empty())
wallpaper->sendFitMode(fitFromString(FIT));
wallpaper->sendApply();
while (!canExit) {
socket->dispatchEvents(true);
}
if (err)
return std::unexpected(*err);
return {};
}
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