Add events system for lua runtime to dispatch and register events

1 files changed, 47 insertions, 0 deletions

diff --git a/src/events.hpp b/src/events.hpp
new file mode 100644
index 0000000..6d10fc7
--- /dev/null
+++ b/src/events.hpp
@@ -0,0 +1,47 @@
+#pragma once
+
+#include <QtCore>
+#include <lua.hpp>
+
+#include "lua.h"
+#include "widgets/BrowserWindow.hpp"
+#include "widgets/WebViewStack.hpp"
+
+#define SET_FIELD(NAME, TYPE, VALUE)                                           \
+  lua_pushstring(state, NAME);                                                 \
+  lua_push##TYPE(state, VALUE);                                                \
+  lua_settable(state, -3);
+
+class BrowserEvent {
+public:
+  std::string kind = "-";
+  virtual ~BrowserEvent() = default;
+
+  virtual void lua_push(lua_State *state) { lua_newtable(state); };
+};
+
+class UrlChangedEvent : public BrowserEvent {
+public:
+  const QString url;
+  const WebViewId webview_id;
+  const WindowId win_id;
+
+  UrlChangedEvent(QString url, WebViewId webview_id, WindowId win_id)
+      : url(std::move(url)), webview_id(webview_id), win_id(win_id) {
+    kind = "UrlChanged";
+  }
+
+  void lua_push(lua_State *state) override {
+    lua_newtable(state);
+    SET_FIELD("tab", integer, webview_id)
+    SET_FIELD("win", integer, win_id)
+    SET_FIELD("url", string, url.toStdString().c_str())
+  }
+};
+
+struct EventHandlerRequest {
+  std::vector<std::string> event_names;
+  std::vector<std::string> patterns;
+  std::function<void(BrowserEvent &)> handler;
+  int function_ref;
+};