mirror of
https://github.com/OrcaSlicer/OrcaSlicer.git
synced 2026-07-15 23:12:08 +00:00
62afea225a
* fix: impl refactor * fix: unload/load python module, race conditions, freezes * remove dead code * remove extra hook * remove more dead code * fix gil run script
573 lines
21 KiB
C++
573 lines
21 KiB
C++
#include "PluginHostUi.hpp"
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#include "slic3r/plugin/PluginAuditManager.hpp"
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#include "slic3r/plugin/PythonInterpreter.hpp" // PythonGILState
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#include <slic3r/GUI/GUI_App.hpp>
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#include <slic3r/GUI/MainFrame.hpp>
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#include <slic3r/GUI/MsgDialog.hpp>
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#include <slic3r/GUI/PluginProgressDialog.hpp>
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#include <slic3r/GUI/PluginWebDialog.hpp>
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#include <nlohmann/json.hpp>
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#include <pybind11/pybind11.h>
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#include <boost/log/trivial.hpp>
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#include <wx/app.h>
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#include <wx/defs.h>
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#include <wx/window.h>
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#include <cstdint>
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#include <future>
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#include <memory>
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#include <mutex>
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#include <optional>
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#include <stdexcept>
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#include <type_traits>
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#include <unordered_map>
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#include <vector>
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namespace py = pybind11;
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using json = nlohmann::json;
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namespace Slic3r {
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namespace {
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// --------------------------------------------------------------------------
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// JSON <-> Python conversion (caller must hold the GIL).
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// --------------------------------------------------------------------------
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py::object json_to_py(const json& j)
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{
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switch (j.type()) {
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case json::value_t::null: return py::none();
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case json::value_t::boolean: return py::bool_(j.get<bool>());
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case json::value_t::number_integer: return py::int_(j.get<std::int64_t>());
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case json::value_t::number_unsigned: return py::int_(j.get<std::uint64_t>());
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case json::value_t::number_float: return py::float_(j.get<double>());
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case json::value_t::string: return py::str(j.get<std::string>());
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case json::value_t::array: {
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py::list lst;
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for (const auto& e : j)
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lst.append(json_to_py(e));
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return lst;
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}
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case json::value_t::object: {
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py::dict d;
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for (auto it = j.begin(); it != j.end(); ++it)
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d[py::str(it.key())] = json_to_py(it.value());
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return d;
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}
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default: return py::none();
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}
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}
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json py_to_json(const py::handle& o)
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{
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if (o.is_none())
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return json(nullptr);
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if (py::isinstance<py::bool_>(o)) // bool before int (bool subclasses int in Python)
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return o.cast<bool>();
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if (py::isinstance<py::int_>(o))
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return o.cast<std::int64_t>();
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if (py::isinstance<py::float_>(o))
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return o.cast<double>();
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if (py::isinstance<py::str>(o))
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return o.cast<std::string>();
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if (py::isinstance<py::bytes>(o))
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return o.cast<std::string>();
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if (py::isinstance<py::dict>(o)) {
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json obj = json::object();
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for (auto item : py::reinterpret_borrow<py::dict>(o))
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obj[py::str(item.first).cast<std::string>()] = py_to_json(item.second);
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return obj;
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}
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if (py::isinstance<py::list>(o) || py::isinstance<py::tuple>(o)) {
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json arr = json::array();
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for (auto e : o)
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arr.push_back(py_to_json(e));
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return arr;
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}
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return py::str(o).cast<std::string>(); // fallback: str()
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}
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// --------------------------------------------------------------------------
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// GIL-safe holder for a Python callable. A std::function that captured a bare
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// py::object could be destroyed on the main thread without the GIL (a dialog
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// teardown), which would Py_DECREF unsafely. Wrapping the callable here means
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// the GIL is acquired exactly when the last reference is released, on any thread.
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// --------------------------------------------------------------------------
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struct GilSafeCallable
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{
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py::object fn;
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explicit GilSafeCallable(py::object f) : fn(std::move(f)) {}
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~GilSafeCallable()
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{
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if (fn) {
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PythonGILState gil;
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if (gil)
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fn = py::object();
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else
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(void) fn.release();
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}
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}
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};
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using CallablePtr = std::shared_ptr<GilSafeCallable>;
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CallablePtr make_holder(py::object obj)
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{
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if (!obj || obj.is_none())
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return nullptr;
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return std::make_shared<GilSafeCallable>(std::move(obj));
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}
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// Adapt a Python callable to a GUI message handler that acquires the GIL and
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// swallows/logs exceptions (a raising handler must not escape into wx events).
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GUI::PluginWebDialog::MessageHandler make_message_adapter(py::object on_message)
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{
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CallablePtr holder = make_holder(std::move(on_message));
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if (!holder)
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return nullptr;
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return [holder](const json& data) {
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PythonGILState gil;
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if (!gil)
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return;
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try {
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holder->fn(json_to_py(data));
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} catch (py::error_already_set& e) {
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BOOST_LOG_TRIVIAL(error) << "orca.host.ui on_message handler raised: " << e.what();
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PyErr_Clear();
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}
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};
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}
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// --------------------------------------------------------------------------
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// Registry of live plugin UI resources. Keyed by an opaque id; tracks the
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// owning plugin so all of a plugin's UI can be torn down on unload.
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// --------------------------------------------------------------------------
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class UiRegistry
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{
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public:
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static UiRegistry& instance()
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{
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static UiRegistry r;
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return r;
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}
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int reserve_id()
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{
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std::lock_guard<std::mutex> lk(m_mtx);
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return m_next_id++;
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}
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void bind(int id, wxWindow* window, const std::string& plugin_key)
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{
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std::lock_guard<std::mutex> lk(m_mtx);
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m_resources[id] = window;
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m_owners[id] = plugin_key;
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}
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void remove(int id)
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{
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std::lock_guard<std::mutex> lk(m_mtx);
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m_resources.erase(id);
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m_owners.erase(id);
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}
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template<typename T>
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T* get_as(int id)
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{
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std::lock_guard<std::mutex> lk(m_mtx);
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auto it = m_resources.find(id);
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if (it == m_resources.end())
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return nullptr;
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return dynamic_cast<T*>(it->second);
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}
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bool is_open(int id)
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{
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std::lock_guard<std::mutex> lk(m_mtx);
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return m_resources.count(id) > 0; // presence only; no pointer deref -> thread-safe
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}
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std::vector<wxWindow*> take_for_plugin(const std::string& plugin_key)
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{
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std::lock_guard<std::mutex> lk(m_mtx);
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std::vector<wxWindow*> out;
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for (auto it = m_owners.begin(); it != m_owners.end();) {
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if (it->second == plugin_key) {
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auto rit = m_resources.find(it->first);
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if (rit != m_resources.end()) {
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out.push_back(rit->second);
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m_resources.erase(rit);
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}
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it = m_owners.erase(it);
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} else {
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++it;
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}
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}
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return out;
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}
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private:
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std::mutex m_mtx;
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std::unordered_map<int, wxWindow*> m_resources;
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std::unordered_map<int, std::string> m_owners;
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int m_next_id{1};
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};
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// --------------------------------------------------------------------------
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// Run a (pure C++/wx) callable on the main/UI thread, blocking the caller until
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// it completes, with the GIL released across the wait. If already on the main
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// thread, run inline (also with the GIL released so other Python threads run).
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// --------------------------------------------------------------------------
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template<typename Fn>
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auto run_on_ui_blocking(Fn&& fn) -> std::invoke_result_t<Fn&>
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{
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using R = std::invoke_result_t<Fn&>;
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if (wxTheApp == nullptr)
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throw std::runtime_error("OrcaSlicer application is not initialized");
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if (wxIsMainThread()) {
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py::gil_scoped_release nogil;
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return fn();
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}
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std::promise<R> prom;
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std::future<R> fut = prom.get_future();
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py::gil_scoped_release nogil;
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GUI::wxGetApp().CallAfter([&prom, &fn]() {
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try {
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if constexpr (std::is_void_v<R>) {
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fn();
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prom.set_value();
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} else {
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prom.set_value(fn());
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}
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} catch (...) {
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prom.set_exception(std::current_exception());
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}
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});
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return fut.get();
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}
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wxWindow* ui_parent()
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{
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return wxTheApp == nullptr ? nullptr : dynamic_cast<wxWindow*>(GUI::wxGetApp().mainframe);
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}
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// --------------------------------------------------------------------------
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// orca.host.ui.message
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// --------------------------------------------------------------------------
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long message_style(const std::string& buttons, const std::string& icon)
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{
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long style = wxOK;
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if (buttons == "ok_cancel")
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style = wxOK | wxCANCEL;
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else if (buttons == "yes_no")
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style = wxYES_NO;
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else if (buttons == "yes_no_cancel")
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style = wxYES_NO | wxCANCEL;
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if (icon == "warning")
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style |= wxICON_WARNING;
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else if (icon == "error")
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style |= wxICON_ERROR;
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else if (icon == "question")
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style |= wxICON_QUESTION;
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else
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style |= wxICON_INFORMATION;
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return style;
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}
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std::string button_to_string(int rc)
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{
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switch (rc) {
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case wxID_OK: return "ok";
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case wxID_YES: return "yes";
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case wxID_NO: return "no";
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default: return "cancel";
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}
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}
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std::string ui_message(const std::string& text, const std::string& title,
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const std::string& buttons, const std::string& icon)
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{
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const long style = message_style(buttons, icon);
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return run_on_ui_blocking([&]() -> std::string {
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GUI::MessageDialog dlg(nullptr, wxString::FromUTF8(text), wxString::FromUTF8(title), style);
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return button_to_string(dlg.ShowModal());
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});
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}
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// --------------------------------------------------------------------------
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// orca.host.ui.show_dialog (modal)
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// --------------------------------------------------------------------------
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py::object ui_show_dialog(const std::string& html, const std::string& title,
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int width, int height, py::object on_message)
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{
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auto handler = make_message_adapter(std::move(on_message));
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const int w = width > 0 ? width : 820;
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const int h = height > 0 ? height : 600;
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std::optional<json> result = run_on_ui_blocking([&]() -> std::optional<json> {
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return GUI::PluginWebDialog::show_modal_dialog(ui_parent(), wxString::FromUTF8(title), html, wxSize(w, h),
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std::move(handler));
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});
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if (!result.has_value())
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return py::none();
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return json_to_py(*result); // GIL held in the binding body
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}
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// --------------------------------------------------------------------------
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// orca.host.ui.create_window (non-modal) + UiWindow handle
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// --------------------------------------------------------------------------
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struct UiWindowHandle
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{
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int id{0};
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};
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struct UiProgressHandle
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{
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int id{0};
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};
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py::object ui_create_window(const std::string& html, const std::string& title, int width, int height,
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py::object on_message, py::object on_close)
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{
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auto msg_adapter = make_message_adapter(std::move(on_message));
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CallablePtr close_holder = make_holder(std::move(on_close));
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const std::string plugin_key = PluginAuditManager::instance().current_plugin();
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const int w = width > 0 ? width : 820;
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const int h = height > 0 ? height : 600;
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const int id = run_on_ui_blocking([&]() -> int {
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const int new_id = UiRegistry::instance().reserve_id();
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// Plugin's on_close: fired only on a user/JS-initiated close (not forced
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// teardown), while the dialog is alive. Empty if the plugin passed None.
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GUI::PluginWebDialog::CloseHandler on_close;
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if (close_holder) {
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on_close = [close_holder]() {
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PythonGILState gil;
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if (!gil)
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return;
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try {
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close_holder->fn();
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} catch (py::error_already_set& e) {
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BOOST_LOG_TRIVIAL(error) << "orca.host.ui on_close handler raised: " << e.what();
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PyErr_Clear();
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}
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};
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}
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// Registry cleanup: GIL-free, runs from the dialog destructor on every path.
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auto on_destroyed = [new_id]() { UiRegistry::instance().remove(new_id); };
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auto* dlg = GUI::PluginWebDialog::create_modeless_dialog(ui_parent(), wxString::FromUTF8(title), html,
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wxSize(w, h), std::move(msg_adapter),
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std::move(on_close), std::move(on_destroyed));
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UiRegistry::instance().bind(new_id, dlg, plugin_key);
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GUI::PluginWebDialog::show_modeless_dialog(dlg);
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return new_id;
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});
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return py::cast(UiWindowHandle{id});
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}
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void handle_post(int id, py::object data)
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{
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if (wxTheApp == nullptr)
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return;
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json j = py_to_json(data); // GIL held (binding body)
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GUI::wxGetApp().CallAfter([id, j = std::move(j)]() {
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auto* d = UiRegistry::instance().get_as<GUI::PluginWebDialog>(id);
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GUI::PluginWebDialog::post_message(d, j);
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});
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}
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void handle_close(int id)
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{
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if (wxTheApp == nullptr)
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return;
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GUI::wxGetApp().CallAfter([id]() {
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auto* d = UiRegistry::instance().get_as<GUI::PluginWebDialog>(id);
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GUI::PluginWebDialog::request_close(d);
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});
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}
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UiProgressHandle ui_create_progress_dialog(const std::string& title, const std::string& message, int maximum, int style)
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{
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const std::string plugin_key = PluginAuditManager::instance().current_plugin();
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const int max_value = maximum > 0 ? maximum : 100;
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return run_on_ui_blocking([&]() -> UiProgressHandle {
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const int new_id = UiRegistry::instance().reserve_id();
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// Registry cleanup: GIL-free, runs from the dialog destructor on every path.
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auto on_destroyed = [new_id]() { UiRegistry::instance().remove(new_id); };
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auto* dlg = GUI::PluginProgressDialog::create_dialog(ui_parent(), wxString::FromUTF8(title),
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wxString::FromUTF8(message), max_value, style,
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std::move(on_destroyed));
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UiRegistry::instance().bind(new_id, dlg, plugin_key);
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return UiProgressHandle{new_id};
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});
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}
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UiProgressHandle* new_progress_dialog(const std::string& title, const std::string& message, int maximum, int style)
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{
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return new UiProgressHandle(ui_create_progress_dialog(title, message, maximum, style));
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}
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bool progress_is_open(int id)
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{
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return UiRegistry::instance().is_open(id);
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}
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bool progress_pulse(int id, const std::string& message)
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{
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return run_on_ui_blocking([&]() {
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auto* d = UiRegistry::instance().get_as<GUI::PluginProgressDialog>(id);
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return GUI::PluginProgressDialog::pulse(d, wxString::FromUTF8(message));
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});
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}
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bool progress_update(int id, int value, const std::string& message)
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{
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return run_on_ui_blocking([&]() {
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auto* d = UiRegistry::instance().get_as<GUI::PluginProgressDialog>(id);
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return GUI::PluginProgressDialog::update(d, value, wxString::FromUTF8(message));
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});
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}
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void progress_start_pulse(int id, int interval_ms, const std::string& message)
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{
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run_on_ui_blocking([&]() {
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auto* d = UiRegistry::instance().get_as<GUI::PluginProgressDialog>(id);
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GUI::PluginProgressDialog::start_pulse(d, interval_ms, wxString::FromUTF8(message));
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});
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}
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void progress_stop_pulse(int id)
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{
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run_on_ui_blocking([&]() {
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auto* d = UiRegistry::instance().get_as<GUI::PluginProgressDialog>(id);
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GUI::PluginProgressDialog::stop_pulse(d);
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});
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}
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void progress_close(int id)
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{
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run_on_ui_blocking([&]() {
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auto* d = UiRegistry::instance().get_as<GUI::PluginProgressDialog>(id);
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GUI::PluginProgressDialog::request_close(d);
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});
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}
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} // namespace
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void PluginHostUi::RegisterBindings(pybind11::module_& host)
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{
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auto ui = host.def_submodule(
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"ui",
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"Host UI: native dialogs and interactive HTML windows. Calls run on the main/UI "
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"thread (marshaled from the plugin thread). See the plugin docs for the window.orca bridge. "
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"Do not call these from a slicing pipeline hook (SlicingPipeline capability): that hook runs "
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"on the slicing worker thread, which the UI thread can itself be blocked waiting on, so a "
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"marshaled UI call from there can deadlock the application.");
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ui.def("message", &ui_message, py::arg("text"), py::arg("title") = "OrcaSlicer", py::arg("buttons") = "ok",
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py::arg("icon") = "info",
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"Show a native modal message box; returns the clicked button id "
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"(\"ok\"/\"cancel\"/\"yes\"/\"no\"). buttons: \"ok\"|\"ok_cancel\"|\"yes_no\"|\"yes_no_cancel\"; "
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"icon: \"info\"|\"warning\"|\"error\"|\"question\".");
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ui.def("show_dialog", &ui_show_dialog, py::arg("html"), py::arg("title") = "OrcaSlicer", py::arg("width") = 820,
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py::arg("height") = 600, py::arg("on_message") = py::none(),
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"Show a modal dialog rendering the given raw HTML. The page talks to the plugin via "
|
|
"window.orca (postMessage/onMessage/submit/close). Blocks until closed; returns the "
|
|
"orca.submit() payload as a dict, or None.");
|
|
|
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ui.attr("PD_APP_MODAL") = py::int_(wxPD_APP_MODAL);
|
|
ui.attr("PD_AUTO_HIDE") = py::int_(wxPD_AUTO_HIDE);
|
|
ui.attr("PD_CAN_ABORT") = py::int_(wxPD_CAN_ABORT);
|
|
ui.attr("PD_CAN_SKIP") = py::int_(wxPD_CAN_SKIP);
|
|
ui.attr("PD_ELAPSED_TIME") = py::int_(wxPD_ELAPSED_TIME);
|
|
ui.attr("PD_ESTIMATED_TIME") = py::int_(wxPD_ESTIMATED_TIME);
|
|
ui.attr("PD_REMAINING_TIME") = py::int_(wxPD_REMAINING_TIME);
|
|
|
|
py::class_<UiWindowHandle>(ui, "UiWindow", "Handle to a non-modal plugin window created by create_window().")
|
|
.def_property_readonly("id", [](const UiWindowHandle& h) { return h.id; })
|
|
.def(
|
|
"post", [](const UiWindowHandle& h, py::object data) { handle_post(h.id, std::move(data)); },
|
|
py::arg("data"), "Send a payload to the page (delivered to window.orca.onMessage handlers).")
|
|
.def(
|
|
"close", [](const UiWindowHandle& h) { handle_close(h.id); }, "Close the window (fires on_close).")
|
|
.def(
|
|
"is_open", [](const UiWindowHandle& h) { return UiRegistry::instance().is_open(h.id); },
|
|
"Return True while the window is open.");
|
|
|
|
ui.def("create_window", &ui_create_window, py::arg("html"), py::arg("title") = "OrcaSlicer", py::arg("width") = 820,
|
|
py::arg("height") = 600, py::arg("on_message") = py::none(), py::arg("on_close") = py::none(),
|
|
"Open a non-modal, persistent HTML window and return a UiWindow. on_message(data) is called on "
|
|
"the UI thread when the page posts; offload heavy work to a thread and push results back with "
|
|
"window.post().");
|
|
|
|
py::class_<UiProgressHandle>(ui, "ProgressDialog", "Handle to a native progress dialog.")
|
|
.def(py::init(&new_progress_dialog), py::arg("title"), py::arg("message"), py::arg("maximum") = 100,
|
|
py::arg("style") = wxPD_APP_MODAL | wxPD_AUTO_HIDE)
|
|
.def_property_readonly("id", [](const UiProgressHandle& h) { return h.id; })
|
|
.def(
|
|
"pulse", [](const UiProgressHandle& h, const std::string& message) { return progress_pulse(h.id, message); },
|
|
py::arg("message") = "", "Pulse the dialog gauge; returns False if the dialog is closed or cancelled.")
|
|
.def(
|
|
"update",
|
|
[](const UiProgressHandle& h, int value, const std::string& message) {
|
|
return progress_update(h.id, value, message);
|
|
},
|
|
py::arg("value"), py::arg("message") = "",
|
|
"Set the dialog progress value; returns False if the dialog is closed or cancelled.")
|
|
.def(
|
|
"start_pulse",
|
|
[](const UiProgressHandle& h, int interval_ms, const std::string& message) {
|
|
progress_start_pulse(h.id, interval_ms, message);
|
|
},
|
|
py::arg("interval_ms") = 100, py::arg("message") = "", "Start periodic pulsing.")
|
|
.def(
|
|
"stop_pulse", [](const UiProgressHandle& h) { progress_stop_pulse(h.id); }, "Stop periodic pulsing.")
|
|
.def(
|
|
"close", [](const UiProgressHandle& h) { progress_close(h.id); }, "Close the progress dialog.")
|
|
.def(
|
|
"is_open", [](const UiProgressHandle& h) { return progress_is_open(h.id); },
|
|
"Return True while this progress dialog is registered.")
|
|
.def("__enter__", [](UiProgressHandle& h) -> UiProgressHandle& { return h; }, py::return_value_policy::reference_internal)
|
|
.def("__exit__", [](const UiProgressHandle& h, py::object, py::object, py::object) {
|
|
progress_close(h.id);
|
|
return false;
|
|
});
|
|
|
|
ui.def("create_progress_dialog", &ui_create_progress_dialog, py::arg("title"), py::arg("message"),
|
|
py::arg("maximum") = 100, py::arg("style") = wxPD_APP_MODAL | wxPD_AUTO_HIDE,
|
|
"Create a native progress dialog and return a ProgressDialog handle.");
|
|
}
|
|
|
|
void PluginHostUi::close_windows_for_plugin(const std::string& plugin_key)
|
|
{
|
|
if (wxTheApp == nullptr)
|
|
return;
|
|
|
|
auto teardown = [plugin_key]() {
|
|
// Destroy() bypasses wxEVT_CLOSE, so the plugin's on_close is not fired on
|
|
// forced teardown (intended); the resource destructor still cleans the registry.
|
|
for (auto* window : UiRegistry::instance().take_for_plugin(plugin_key)) {
|
|
if (window != nullptr)
|
|
window->Destroy();
|
|
}
|
|
};
|
|
|
|
if (wxIsMainThread())
|
|
teardown();
|
|
else
|
|
GUI::wxGetApp().CallAfter(teardown);
|
|
}
|
|
|
|
} // namespace Slic3r
|