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#pragma once
#include <QtCore>
#include <functional>
#include <lua.hpp>
#include "AsyncEventLoop.hpp"
#include "lua.h"
#include "utils.hpp"
#include "widgets/WebViewStack.hpp"
#ifndef PROJECT_LUA_PATH
#define PROJECT_LUA_PATH ""
#endif
#define preserve_top(STATE, BODY) \
{ \
const int __top = lua_gettop(STATE); \
BODY; \
lua_settop(STATE, __top); \
};
class LuaRuntime : public QObject {
Q_OBJECT
const char *uv_global_name = "uv";
const char *internals_global_name = "__internals";
public:
static LuaRuntime &instance() {
static LuaRuntime runtime;
return runtime;
}
void evaluate(const QString &code);
void load_file_sync(const QString &path);
void stop_event_loop();
void start_event_loop();
DELEGATE(event_loop, queue_task, queue_task)
QVariant get_lua_value(int idx, QVariant default_value = 0);
DEFINE_GETTER(get_state, state)
signals:
void evaluation_completed(QVariant value);
void evaluation_failed(QString value);
void history_back_requested(WebViewId webview_id, qsizetype history_index);
void history_forward_requested(WebViewId webview_id, qsizetype history_index);
void keymap_added(QString mode, QString keyseq, std::function<void()>);
void url_opened(QString url, OpenType open_type, WebViewId webview_id);
void webview_closed(WebViewId webview_id);
void webview_selected(WebViewId webview_id);
void config_updated(const QString &key, const QVariant &value);
protected:
LuaRuntime();
~LuaRuntime() override;
void init_web_lib();
// Lua api
static int lua_history_back(lua_State *state);
static int lua_history_forward(lua_State *state);
static int lua_event_register(lua_State *state);
static int lua_keymap_set(lua_State *state);
static int lua_open_url(lua_State *state);
static int lua_view_close(lua_State *state);
static int lua_view_create(lua_State *state);
static int lua_view_current(lua_State *state);
static int lua_view_list(lua_State *state);
static int lua_view_select(lua_State *state);
static int lua_config_set(lua_State *state);
static int lua_config_get(lua_State *state);
private:
lua_State *state;
AsyncEventLoop *event_loop = nullptr;
// TEMP
public:
static void inspect_lua_stack(lua_State *state) {
int top = lua_gettop(state);
qDebug() << "--- Lua Stack (top: " << top << ") ---\n";
for (int i = 1; i <= top; i++) {
int type = lua_type(state, i);
qDebug() << " " << i << ": " << lua_typename(state, type);
}
qDebug() << "---------------------------\n";
lua_settop(state, top);
}
static std::vector<QString> lua_tostringlist(lua_State *state) {
std::vector<QString> values;
if (!lua_istable(state, -1))
return values;
lua_pushnil(state); // First key for lua_next()
while (lua_next(state, -2) != 0) {
if (lua_isstring(state, -1))
values.emplace_back(lua_tostring(state, -1));
lua_pop(state, 1);
}
lua_pop(state, 1);
return values;
}
};
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